JP2014071734A - Substrate for color filter integrated touch panel sensor, color filter integrated touch panel sensor, and color filter integrated touch panel module - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a substrate for a color filter integrated touch panel sensor, a color filter integrated touch panel sensor, and a color filter integrated touch panel module, capable of suppressing generation of moire, as a main purpose.SOLUTION: A substrate for a color filter integrated touch panel sensor comprises: a transparent substrate; a sensor electrode formed on the transparent substrate and having a mesh-like first electrode and a mesh-like second electrode insulated from the first electrode; and a light shielding part formed pattern-like on the transparent substrate. A formation position of the mesh-like first electrode and second electrode coincides with a formation position of the pattern-like light shielding part in planar view.

Description

  The present invention relates to a color filter integrated touch panel sensor having a mesh-like sensor electrode.

  Today, touch panels are widely used as input means. In many cases, a touch panel is used together with a display device as an input means for various devices in which a display device such as a liquid crystal display device or a plasma display is incorporated, for example, a ticket vending machine, an ATM device, a mobile phone, or a game machine. Yes. In such a device, the touch panel is placed on the display surface of the display device, which allows the touch panel to make a very direct input to the display device.

  Various types of touch panels have been put into practical use. Among them, what is called a capacitance method is a touch panel sensor having a layer structure of a first electrode / interelectrode insulating layer / second electrode, and a touch panel sensor for supplying power to the electrodes and outputting detection signals. What has a flexible printed wiring board connected to an external connection terminal is used. Then, a weak current is passed through the touch panel surface of the touch panel to form an electric field, and the change in capacitance value when a finger or other conductor is lightly touched is converted into a voltage drop or the like and detected. The obtained contact position is output as a signal.

As a touch panel sensor used for the electrostatic capacity method, generally, a sensor in which an electrode and an external connection terminal are formed on a pair of opposing substrates is known. As another mode, one in which electrodes and external connection terminals are formed on both surfaces of a single substrate is known.
Moreover, as an electrode used for a touch panel sensor, a transparent electrode made of a transparent conductive material is usually used from the viewpoint of improving the visibility. However, as disclosed in Patent Documents 1 to 4, for example, An electrode made of an opaque metal material has also been examined in response to a demand for sensitivity, and an electrode made of a mesh-like fine metal wire has been proposed.

  However, in a display device using a touch panel sensor, members having various regular patterns such as a light shielding portion of a color filter, electrodes, wirings, and semiconductor elements are formed. An electrode made of a fine metal wire in a mesh shape also has a regular pattern. Therefore, when a touch panel using electrodes made of mesh-like fine metal wires is arranged on the display surface of the display device, there is a problem that moiré occurs due to overlapping of different regular patterns.

  It is not intended to suppress the occurrence of moire due to the overlapping of different regular patterns, but for the purpose of suppressing the occurrence of moire due to the electrode itself made of a fine metal mesh, for example, Patent Documents 5 and 6 Has proposed a method of setting the metal coating amount, the mesh pattern pitch, and the surface resistance within a predetermined range. Patent Document 7 forms a moire suppression portion having a predetermined area at the intersection of mesh patterns. A technique has been proposed.

Japanese Patent No. 4610416 JP 2010-286886 A JP 2004-192093 A JP 2010-277392 A JP 2010-108877 A JP 2010-108878 A JP 2012-108845 A

In recent years, a color filter integrated touch panel sensor in which a touch panel sensor and a color filter are integrated has been used in order to reduce the thickness and weight of the entire apparatus having a touch panel.
The present invention has been made in view of the above circumstances, and provides a color filter integrated touch panel sensor substrate, a color filter integrated touch panel sensor, and a color filter integrated touch panel module capable of suppressing the occurrence of moire. The main purpose.

  In order to solve the above problems, the present invention provides a transparent substrate, a sensor electrode formed on the transparent substrate, and having a mesh-like first electrode and a mesh-like second electrode insulated from the first electrode; A color filter-integrated touch panel sensor substrate having a light-shielding portion formed in a pattern on the transparent substrate, and the formation positions of the mesh-shaped first electrode and the second electrode in plan view; Provided is a color filter-integrated touch panel sensor substrate characterized in that the formation position of the light-shielding portion in a pattern is coincident.

  According to the present invention, when the formation positions of the mesh-shaped first electrode and the second electrode coincide with the formation positions of the pattern-shaped light-shielding portions in plan view, the regular patterns overlap each other. It is possible to suppress the occurrence of moiré. Furthermore, it becomes possible to increase the OD value of the portion where the light shielding portion and the first electrode or the second electrode are laminated.

  In the said invention, it is preferable that the line width of the said 1st electrode and the line width of the said 2nd electrode are smaller than the line width of the said light-shielding part. When the line width of the first electrode and the second electrode is narrow, the first electrode and the second electrode are difficult to be visually recognized. When the color filter integrated touch panel sensor substrate of the present invention is used for a display device, the visibility is reduced. It is because it can improve.

  In the present invention, it is preferable that the light shielding portion has an insulating property. When at least one of the first electrode and the second electrode is formed in contact with the light shielding part, the light shielding part has an insulating property, so that a short circuit can be prevented from occurring between the sensor electrodes. is there.

  The present invention also includes a color filter-integrated touch panel sensor substrate and a color layer formed on a surface of the color filter-integrated touch panel sensor substrate on which a light-shielding portion is formed. A filter-integrated touch panel sensor is provided.

  Furthermore, the present invention provides the above-described color filter integrated touch panel sensor, a flexible printed wiring board connected to the color filter integrated touch panel sensor, an adhesive layer formed on the color filter integrated touch panel sensor, and the adhesive. Provided is a color filter integrated touch panel module having a cover lens formed on a layer.

  According to the present invention, by using the above-described color filter integrated touch panel sensor substrate, it is possible to suppress the generation of moire and to improve the OD value of the light shielding portion.

  The present invention has an effect that it is possible to suppress the occurrence of moire due to the overlap between the mesh-shaped first electrode and the second electrode and the patterned light-shielding portion.

It is a schematic sectional drawing which shows an example of the board | substrate for color filter integrated touch panel sensors of this invention, and is sectional drawing which shows an example of the AA line cross section of FIG. It is a schematic plan view which shows an example of the board | substrate for color filter integrated touch panel sensors of this invention, and is an enlarged view which shows an example of the area | region B of FIG. It is a schematic plan view which shows an example of the board | substrate for color filter integrated touch panel sensors of this invention. It is a schematic plan view which shows the other example of the board | substrate for color filter integrated touch panel sensors of this invention. It is a schematic sectional drawing which shows the other example of the board | substrate for color filter integrated touch panel sensors of this invention, and is sectional drawing which shows the other example of the AA line cross section of FIG. It is a schematic sectional drawing which shows the other example of the board | substrate for color filter integrated touch panel sensors of this invention, and is sectional drawing which shows the other example of the AA line cross section of FIG. It is a schematic sectional drawing which shows the other example of the board | substrate for color filter integrated touch panel sensors of this invention. It is a schematic sectional drawing which shows the other example of the board | substrate for color filter integrated touch panel sensors of this invention. It is a schematic sectional drawing which shows the other example of the board | substrate for color filter integrated touch panel sensors of this invention. It is a schematic sectional drawing which shows an example of the color filter integrated touch-panel sensor of this invention. It is a schematic sectional drawing which shows the other example of the color filter integrated touch-panel sensor of this invention. It is a schematic sectional drawing which shows the other example of the color filter integrated touch-panel sensor of this invention. It is a schematic sectional drawing which shows the other example of the color filter integrated touch-panel sensor of this invention. It is a schematic sectional drawing which shows the other example of the color filter integrated touch-panel sensor of this invention. It is a schematic sectional drawing which shows the other example of the color filter integrated touch-panel sensor of this invention. It is a schematic sectional drawing which shows an example of the color filter integrated touch panel module of this invention.

  Hereinafter, the color filter integrated touch panel sensor substrate, the color filter integrated touch panel sensor, and the color filter integrated touch panel module of the present invention will be described in detail.

A. Color Filter Integrated Touch Panel Sensor Substrate First, the color filter integrated touch panel sensor substrate will be described.
The color filter integrated touch panel sensor substrate according to the present invention includes a transparent substrate, a sensor electrode formed on the transparent substrate, and having a mesh-like first electrode and a mesh-like second electrode insulated from the first electrode. And a color filter-integrated touch panel sensor substrate having a light-shielding portion formed in a pattern on the transparent substrate, and the formation positions of the mesh-shaped first electrode and the second electrode in plan view Further, the formation position of the light shielding part in the pattern shape is the same.

The color filter integrated touch panel sensor substrate of the present invention will be described with reference to the drawings.
1 to 3 are a schematic cross-sectional view and a plan view showing an example of a color filter-integrated touch panel sensor substrate of the present invention, and FIG. 1 is a cross-sectional view showing an example of a cross-section along line AA in FIG. FIG. 2 is an enlarged view showing an example of a region B in FIG. In FIG. 3, the light shielding portion is omitted.
In the color filter-integrated touch panel sensor substrate 1 illustrated in FIG. 3, the mesh-shaped first electrode 3 and the second electrode 4 are formed on the transparent substrate 2 so as to be insulated from each other. Wirings 5 and 6 connected to the third electrode 2 and the second electrode 4 are formed. Further, as illustrated in FIGS. 1 and 2, the color filter integrated touch panel sensor substrate 1 includes a transparent substrate 2, a light shielding portion 7 formed in a lattice shape on the transparent substrate 2, and a light shielding portion 7. The mesh-shaped first electrode 3 and second electrode 4 are formed. And, in plan view, the formation positions of the mesh-shaped first electrode 3 and the second electrode 4 coincide with the formation positions of the lattice-shaped light shielding portion 7, and the mesh-shaped first electrode 3 and the second electrode 4 The grid-like light-shielding part 7 is assimilated.

According to the present invention, when the formation positions of the mesh-shaped first electrode and the second electrode coincide with the formation positions of the pattern-shaped light-shielding portions in plan view, the regular patterns overlap each other. It is possible to suppress the occurrence of moiré.
Here, in general, in the touch panel sensor, the mesh electrode is designed with dimensions such as line width and pitch and a mesh shape according to a desired aperture ratio, surface resistance, and the like. On the other hand, in the color filter, the pattern-shaped light-shielding portion demarcates pixels, and dimensions and pattern shapes such as line width and pitch are designed according to the desired resolution and the like. For this reason, the mesh-shaped electrode in the touch panel sensor and the patterned light-shielding portion in the color filter usually have different patterns. On the other hand, in the present invention, in order to suppress the occurrence of moire due to the overlapping of regular patterns, unlike the conventional design, the formation positions of the mesh-shaped first electrode and the second electrode and the pattern-shaped light shielding portion The formation position is matched.

  In general, in a color filter, it is difficult to significantly reduce the line width of the light shielding portion from the viewpoint of preventing color mixing and contrast. On the other hand, in the touch panel sensor, the line width of the mesh electrode is reduced in order to increase the aperture ratio. Therefore, the line width of the mesh-like electrode in the touch panel sensor is usually narrower than the line width of the pattern-like light shielding portion in the color filter. On the other hand, in the present invention, since the formation positions of the mesh-shaped first electrode and the second electrode coincide with the formation positions of the pattern-shaped light-shielding portion in plan view, the mesh-shaped first electrode and the first electrode Even if the line width of the two electrodes is increased to the line width of the patterned light-shielding portion, the aperture ratio does not change. Therefore, by increasing the line width of the mesh-shaped first electrode and the second electrode while maintaining the aperture ratio, the surface resistance of the mesh-shaped first electrode and the second electrode can be increased, and the sensor electrode Can increase the sensitivity.

  In addition, in order to obtain a desired aperture ratio and the like while matching the formation position of the mesh-shaped first electrode and the second electrode with the formation position of the pattern-shaped light-shielding portion, for example, the line width of the pattern-shaped light-shielding portion is reduced. It is also assumed that the mesh-like first electrode and the second electrode are made narrower in line with the line width, and in that case, there is a concern about color mixing or a decrease in contrast. However, in the present invention, the formation position of the mesh-shaped first electrode and the second electrode coincides with the formation position of the pattern-shaped light-shielding part in plan view, so that the light-shielding part and the first electrode or the second electrode The OD value of the portion where and are stacked can be improved. Therefore, even if the line width of the pattern-shaped light-shielding portion is made narrow in order to match the formation position of the mesh-shaped first electrode and the second electrode with the formation position of the pattern-shaped light-shielding portion, color mixing prevention In addition, the function of the light shielding portion such as contrast can be exhibited.

  Further, when the patterned light shielding portion is formed in contact with the mesh-shaped first electrode and the second electrode, a resin material is used for the light shielding portion in order to insulate the first electrode and the second electrode. Although it is preferable, the light-shielding part using the resin material has a drawback that the OD value is low. However, in the present invention, as described above, the formation position of the mesh-shaped first electrode and the second electrode coincides with the formation position of the pattern-shaped light-shielding part in plan view, so The OD value of the portion where the electrode or the second electrode is laminated can be improved. Therefore, even when a resin material is used for the light shielding portion, a sufficient OD value can be obtained.

  Therefore, by using the color filter integrated touch panel sensor substrate of the present invention, a display device excellent in display quality and operability can be obtained.

  Hereinafter, each configuration in the color filter integrated touch panel sensor substrate of the present invention will be described.

1. In the present invention, the formation position of the mesh-shaped first electrode and the second electrode coincides with the formation position of the pattern-shaped light-shielding part in plan view.

  Here, “in the plan view, the formation position of the mesh-shaped first electrode and the second electrode and the formation position of the pattern-shaped light shielding portion coincide with each other” means that the mesh-shaped first electrode in the plan view. The second electrode and the pattern-shaped light-shielding portion are assimilated, and the formation positions of the mesh-shaped first electrode and the second electrode completely coincide with the formation positions of the pattern-shaped light-shielding portion. In addition to the case, the patterned light-shielding portion has a portion where the formation position does not coincide with the formation position of the mesh-like first electrode and the second electrode, and the mesh-like first electrode The second electrode is a concept including a case where the formation position of the second electrode has a portion that coincides with a formation position of the patterned light-shielding portion and a portion that does not coincide with the formation position.

  For example, in FIG. 2, the formation position of the mesh-shaped first electrode 3 and the second electrode 4 coincides with the formation position of the pattern-shaped light shielding part 7 in plan view. The formation position of the first electrode 3 and the second electrode 4 in the mesh shape and the portion that does not coincide with the formation position. In the example shown in FIG. 4A, the formation positions of the mesh-shaped first electrode 3 and the second electrode (not shown) coincide with the formation positions of the pattern-shaped light-shielding portion 7 in plan view. However, the patterned light-shielding portion 7 has a portion where the formation position coincides with the formation position of the mesh-like first electrode 3 and the second electrode (not shown) and a portion that does not coincide with the formation position. In the example shown in FIG. 4B, the formation position of the patterned light-shielding portion 7 coincides with the formation position of the mesh-shaped first electrode 3 and second electrode (not shown) in plan view. However, the mesh-shaped first electrode 3 and the second electrode (not shown) have a portion where the formation position coincides with the formation position of the pattern-shaped light-shielding portion 7 and a portion that does not coincide with the formation position.

  As described above, in a plan view, as an aspect in which the formation positions of the mesh-shaped first electrode and the second electrode coincide with the formation positions of the pattern-shaped light-shielding portion, the mesh shape and the light-shielding of the first electrode and the second electrode are used. The pattern shape of the part, the pitch of the mesh-shaped first electrode and the second electrode, the pitch of the pattern-shaped light shielding part, and the like are appropriately selected.

The mesh shape of the first electrode and the second electrode is not particularly limited as long as the contact position can be accurately detected. For example, the smallest unit constituting the mesh shape is a triangle, a quadrangle, a rhombus, or a hexagon. And the like.
The pattern shape of the light shielding portion can be the same as the light shielding portion of a general color filter, and examples thereof include a stripe shape and a lattice shape. In the case of a lattice shape, the minimum unit constituting the lattice shape is, for example, a triangle, a quadrangle, a rhombus, a hexagon, or the like.
The minimum unit constituting the mesh shape of the first electrode and the second electrode and the minimum unit constituting the pattern shape of the light-shielding portion are determined by the formation position of the mesh-like first electrode and the second electrode and the pattern-like shape in plan view. As long as the formation position of the light shielding portion coincides, it may be the same or different. For example, in FIGS. 3 and 4A and 4B, the minimum unit constituting the mesh shape of the first electrode and the second electrode is a quadrangle, and the minimum unit constituting the pattern shape of the light shielding portion 7 is a quadrangle. The minimum unit of each is the same.

The pitch of the mesh-shaped first electrode and the second electrode may be the same as or different from the pitch of the pattern-shaped light shielding portion. When the pitch of the mesh-shaped first electrode and the second electrode is different from the pitch of the pattern-shaped light shielding portion, the formation position of the mesh-shaped first electrode and the second electrode and the formation position of the pattern-shaped light shielding portion Therefore, the pitch of the mesh-shaped first electrode and the second electrode is an integral multiple of the pitch of the pattern-shaped light-shielding portion, or the pitch of the pattern-shaped light-shielding portion is the mesh-shaped first electrode and the second electrode. It becomes an integral multiple of the pitch of the two electrodes.
For example, in FIG. 3, the pitches p1 and p3 of the mesh-shaped first electrode 3 and the second electrode 4 are equal to the pitches p2 and p4 of the patterned light-shielding portion 7, respectively. In the example shown in FIG. 4A, the pitches p1 and p3 of the mesh-shaped first electrode 3 and the second electrode (not shown) are twice the pitches p2 and p4 of the patterned light-shielding portion 7, respectively. is there. In the example shown in FIG. 4B, the pitches p2 and p4 of the patterned light-shielding portion 7 are twice the pitches p1 and p3 of the mesh-shaped first electrode 3 and second electrode (not shown), respectively. is there.
Here, the pitch between the mesh-shaped first electrode and the second electrode and the pitch between the patterned light-shielding portions refer to the distance from the center of the adjacent line to the center.

  Among these, the minimum unit constituting the mesh shape of the first electrode and the second electrode is the same as the minimum unit constituting the pattern shape of the light shielding portion, and the pitch and pattern of the mesh-like first electrode and second electrode are the same. It is preferable that the pitch of the light shielding portions is the same. This is because, in plan view, the mesh-shaped first electrode and second electrode and the patterned light-shielding portion can be easily assimilated.

  In the present invention, the first electrode and the second electrode and the light-shielding portion need only coincide with the formation position of the mesh-shaped first electrode and the second electrode and the formation position of the pattern-like light-shielding portion in plan view. The arrangement with respect to the transparent substrate is not particularly limited as long as the first electrode and the second electrode are insulated. Specifically, as shown in FIGS. 1 and 5, the first electrode 3, the second electrode 4, and the light shielding portion 7 may be formed on one surface of the transparent substrate 2, as shown in FIG. 6. In addition, the first electrode 3 and the second electrode 4 may be formed on one surface of the transparent substrate 2, and the light shielding portion 7 may be formed on the other surface of the transparent substrate 2. Further, as shown in FIGS. 7A and 7B, the first electrode 3 and the light shielding portion 7 are formed on one surface of the transparent substrate 2, and the second electrode 4 is formed on the other surface of the transparent substrate 2. May be. Further, as shown in FIGS. 8A and 8B, the first electrode 3 is formed on one surface of the transparent substrate 2, and the second electrode 4 and the light shield are provided on the first electrode 3 via the insulating layer 8. The portion 7 may be formed. As shown in FIG. 8C, the first electrode 3 is formed on one surface of the transparent substrate 2, and the second electrode is formed on the first electrode 3 via the insulating layer 8. An electrode may be formed, and the light shielding part 7 may be formed on the other surface of the transparent substrate 2. 9A and 9B, the transparent substrate 2a on which the first electrode 3 is formed and the transparent substrate 2b on which the second electrode 4 and the light-shielding portion 7 are formed are provided with an adhesive layer 9 interposed therebetween. 9C, the transparent substrate 2a on which the first electrode 3 is formed and the transparent substrate 2b on which the second electrode 4 is formed are bonded via an adhesive layer 9. The light shielding part 7 may be formed on the other surface of the transparent substrate 2a.

  In particular, as illustrated in FIGS. 1, 5, and 6, it is preferable that the first electrode 3 and the second electrode 4 are formed on the same plane on the transparent substrate 2. This is because the number of members is small, and the color filter integrated touch panel sensor substrate can be made thinner, and the productivity can be improved by being able to be manufactured by a roll-to-roll process. Further, since there is no need to bond two transparent substrates, it is possible to avoid the positional deviation between the first electrode and the second electrode, the positional deviation between the first electrode and the second electrode, and the light shielding portion, and the like. It is.

  In addition, as illustrated in FIG. 1, FIG. 5, FIG. 8 (a), FIG. 8 (b), FIG. 9 (a) and FIG. 9 (b), the first surface is formed on one surface of the transparent substrate 2 or 2a. It is preferable that the electrode 3 and the second electrode 4 and the light shielding portion 7 are formed. Since nothing is formed on the other surface of the transparent substrate 2 or 2a, after the color filter integrated touch panel sensor substrate is manufactured, the other surface of the transparent substrate 2 or 2a is subjected to a slimming process such as polishing. This is because it is possible to reduce the thickness of the color filter integrated touch panel sensor substrate.

2. Sensor electrode The sensor electrode in this invention has a mesh-shaped 1st electrode and 2nd electrode which are formed on the transparent substrate and are mutually insulated.

  The plan view shape and the plan view outer shape of the mesh-shaped first electrode and the second electrode are not particularly limited as long as the contact position can be detected with high accuracy. For example, Japanese Patent No. 4610416, JP 2010 -286886, JP-A 2004-192093, JP-A 2010-277392, JP-A 2011-129501, etc. can do. Specifically, as the planar view outer shape of the first electrode and the second electrode, as shown in FIG. 3, a bulging portion having a polygonal shape such as a square shape, and a line portion connecting the bulging portions, Can be mentioned.

  The line widths of the mesh-shaped first electrode and the second electrode may be the same as or different from the line width of the pattern-shaped light shielding portion. Further, when the line width of the mesh-shaped first electrode and the second electrode is different from the line width of the pattern-shaped light-shielding portion, it may be smaller or larger than the line width of the pattern-shaped light-shielding portion. The magnitude relationship between the line width of the mesh-shaped first electrode and the second electrode and the line width of the patterned light-shielding portion is appropriately selected according to the layer configuration of the color filter-integrated touch panel sensor substrate of the present invention. Especially, it is preferable that the line widths of the mesh-like first electrode and the second electrode are smaller than the line widths of the mesh-like first electrode and the second electrode. As will be described later, the first electrode and the second electrode are made of a metal material and have a metallic luster. However, since the line width of the mesh-like first electrode and the second electrode is small, the first electrode and the second electrode This is because the two electrodes are less visible, and when the color filter integrated touch panel sensor substrate of the present invention is used for a display device, a display device having excellent visibility and high display quality can be provided. Moreover, it is because the positional accuracy at the time of forming a 1st electrode, a 2nd electrode, and a light-shielding part can be improved.

In addition, as illustrated in FIG. 1, when the light shielding portion 7, the first electrode 3, and the second electrode 4 are sequentially laminated on the transparent substrate 2, the mesh-shaped first electrode 3 and second electrode 4 is preferably the same as the line width d2 of the patterned light-shielding portion 7 or smaller than the line width d2 of the patterned light-shielding portion 7, and the mesh-shaped first electrode 3 and second electrode It is more preferable that the line width d1 of 4 is smaller than the line width d2 of the patterned light-shielding portion 7. In the color filter integrated touch panel sensor substrate of the present invention, the surface of the transparent substrate on which the light shielding portion is not formed is the viewer side. Therefore, although the first electrode and the second electrode have a metallic luster as described above, when the resin material is used for the light shielding portion, the first electrode and the second electrode are visually recognized by the light shielding portion. And the reflection of external light and the like at the first electrode and the second electrode can be suppressed. Accordingly, when the color filter integrated touch panel sensor substrate of the present invention is used in a display device, a display device having excellent visibility and high display quality can be provided. Furthermore, in the above case, the line width of the mesh-shaped first electrode and the second electrode is set to the line of the pattern-shaped light-shielding portion while maintaining the aperture ratio with difficulty in visually recognizing the first electrode and the second electrode. The thickness can be increased within the range of the width or less, and as a result, the surface resistance of the mesh-like first electrode and second electrode can be increased, and the sensitivity of the sensor electrode can be increased.
Further, as illustrated in FIG. 7A, FIG. 8A, and FIG. 9A, the light shielding portion 7 and the first electrode 3 or the second electrode 4 are sequentially laminated on the transparent substrate 2 or 2b. The line width of the mesh-shaped first electrode and the second electrode is preferably the same as the line width of the pattern-shaped light shielding portion or smaller than the line width of the pattern-shaped light shielding portion, It is more preferable that the line width of the first electrode and the second electrode is smaller than the line width of the pattern-shaped light-shielding portion. This is because the same effect as in the above case can be obtained.

  Specifically, the line widths of the mesh-like first electrode and second electrode are not particularly limited as long as the contact position can be detected with high accuracy, and the display using the color filter integrated touch panel sensor substrate of the present invention is used. Although it varies depending on the application of the apparatus, it is preferably in the range of 1 μm to 100 μm, more preferably in the range of 2 μm to 80 μm, and particularly preferably in the range of 3 μm to 50 μm. This is because, when the line width of the first electrode and the second electrode is within the above range, the visibility can be improved when the color filter integrated touch panel sensor substrate of the present invention is used in a display device. .

  Further, as described above, the pitch of the mesh-shaped first electrode and the second electrode may be the same as or different from the pitch of the pattern-shaped light-shielding portion. When the pitch of the mesh-shaped first electrode and the second electrode is different from the pitch of the pattern-shaped light shielding part, the formation position of the mesh-shaped first electrode and the second electrode and the formation position of the pattern-shaped light shielding part are Therefore, the pitch of the mesh-shaped first electrode and the second electrode is an integral multiple of the pitch of the pattern-shaped light shielding portion, or the pitch of the pattern-shaped light shielding portion is the mesh-shaped first electrode and the second electrode. It is an integral multiple of the electrode pitch. Among them, the pitch of the mesh-shaped first electrode and the second electrode is the same as the pitch of the pattern-shaped light shielding portion, or the pitch of the mesh-shaped first electrode and the second electrode is the pitch of the pattern-shaped light shielding portion. In particular, the pitch of the mesh-shaped first electrode and the second electrode is preferably the same as the pitch of the pattern-shaped light shielding portion. This is because, in plan view, the mesh-shaped first electrode and second electrode and the patterned light-shielding portion can be easily assimilated.

  Specifically, the pitch of the mesh-like first electrode and second electrode is not particularly limited as long as the contact position can be accurately detected, and the display device using the color filter integrated touch panel sensor substrate of the present invention is used. Although it depends on the application and the like, it is preferably within a range of 5 μm to 250 μm, more preferably within a range of 10 μm to 200 μm, and particularly preferably within a range of 50 μm to 150 μm. This is because when the pitch of the first electrode and the second electrode is within the above range, excellent visibility can be obtained when the color filter-integrated touch panel sensor substrate of the present invention is used in a display device. If the pitch of the first electrode and the second electrode is within the above range, the formation position of the mesh-shaped first electrode and the second electrode and the formation position of the pattern-shaped light-shielding portion are accurately matched in plan view. It is because it can be made. In addition, when the pitch of a mesh-shaped 1st electrode and 2nd electrode differs in the width direction and a length direction, both pitch should just be in the said range.

  The material constituting the first electrode and the second electrode is not particularly limited as long as an electrode having desired conductivity can be obtained. For example, the metal described in JP 2010-238052 A, etc. Materials can be used. Specifically, a metal such as aluminum, molybdenum, silver, chromium, or copper, or an alloy such as a silver alloy, copper alloy, or an alloy of silver, palladium, or copper called APC can be used as the metal material. . Moreover, the below-mentioned copper-type material can also be used for a metal material.

The copper-based material is copper or a copper alloy containing copper as a main component.
Here, “having copper as a main component” means that the copper content in the copper-based material is within a range of 90 at% or more and less than 100 at%. Especially, it is preferable that the copper content in a copper-type material is 95 at% or more, and it is more preferable that it is 99 at% or more. It is because the outstanding electroconductivity is obtained because copper content is the said range. Moreover, when the copper content is 99.9 at% or more, when the thickness of the metal concentration gradient region described later is 0.5, the thickness of the copper high concentration region can be set to a ratio exceeding 99. Because it becomes.
Here, the mixing ratio of the copper and the additive metal other than copper contained in the copper-based material is obtained by collecting the sensor electrode from the color filter integrated touch panel sensor substrate and collecting it by a general metal alloy analysis method. Can be measured. More specifically, there is a method of measuring a compounding ratio of copper and an additive metal other than copper contained in the sensor electrode by performing a depth profile of X-ray photoelectron spectroscopy abbreviated as XPS.

Although it will not specifically limit as long as it has desired electroconductivity as a copper-type material, Especially, it is a copper alloy, ie, a copper-type material contains additional metals other than copper and copper. preferable. This is because the inclusion of the additive metal makes it easy to adjust the adhesion to the transparent substrate and to make the electrode excellent in oxidation resistance.
The additive metal can be appropriately selected according to the function required for the sensor electrode, for example, manganese, chromium, vanadium, titanium, molybdenum, indium, zinc, magnesium, aluminum, etc. Among these, manganese can be preferably used. It is because it can be set as the electrode excellent in oxidation resistance by containing the said additional metal. The type of additive metal contained in the copper-based material may be one type or two or more types.

  In addition, the additive metal may be included as a single metal or may be included as an oxide, but is preferably included as an oxide, and in particular, all of the additive metal is included as an oxide. It is preferable. It is because it can be set as the electrode excellent by oxidation resistance.

  When the copper-based material is a copper alloy, the distribution of copper and additive metal contained in the copper alloy within the sensor electrode may be distributed uniformly or non-uniformly. Above all, from the outer peripheral surface of the sensor electrode toward the inner direction, the copper concentration increases and the concentration of the additive metal decreases, and the metal concentration gradient region continues to the metal concentration gradient region, and the concentration of the additive metal is minimal. Thus, it is preferable that the copper and the additive metal are distributed so that the copper concentration is provided with a copper high concentration region having a higher concentration than copper in the metal concentration gradient region. With such a distribution, for example, in the high copper concentration region, the resistance value close to that of a single copper can be shown because the concentration of the additive metal is a minimum. For this reason, it is because the resistance value in a copper high concentration area | region is low, and favorable electroconductivity is obtained. Moreover, by having a metal concentration gradient region with a high concentration of the additive metal, adhesion to a transparent substrate or the like is improved as compared with a sensor electrode made of a simple substance of copper. For this reason, there is little peeling of the sensor electrode during or after the formation of the sensor electrode, and the manufacturing yield can be improved. Moreover, it is because it can be set as the electrode excellent in oxidation resistance.

Here, “continuous to the metal concentration gradient region” means that the metal concentration gradient region and the copper high concentration region are not composed of two layers having an interface, but are substantially recognized as one layer. It means that a gradient of the metal concentration is observed inside. Alternatively, the metal concentration gradient region and the copper high concentration region are not two independent components adjacent to each other, but are substantially one component, and the metal concentration gradient is within the component. It means being observed.
In addition, the “copper high concentration region” may be a region where the increasing tendency of the copper concentration from the outer peripheral surface to the inner direction shown in the metal concentration gradient region substantially ends and a high copper concentration is indicated. The “minimum” concentration of the additive metal here is not limited to a limited numerical range, but a concentration smaller than the concentration of the additive metal in the metal concentration gradient region is shown. It shows that the added metal is slightly contained exceeding 0 at% in the concentration.

  From the viewpoint of improving the conductivity in the copper high concentration region, the concentration of the additive metal in the copper high concentration region is preferably 1 at% or less, more preferably 0.1 at% or less with respect to the copper concentration, It is not limited to this, and may vary depending on the content of the additive metal in the copper-based material.

  Further, the ratio of the metal concentration gradient region and the copper high concentration region in the thickness direction of the sensor electrode is not particularly limited as long as desired conductivity and adhesion can be obtained. In particular, the thickness of the copper high-concentration region is preferably thick within the range in which the presence of the metal concentration gradient region provides a good antioxidation effect and adhesion improvement effect. For example, the metal concentration on one surface side of the sensor electrode When the thickness of the gradient region is 0.5, the thickness of the copper high concentration region is preferably 90 or more, and more preferably 99 or more.

  The sheet resistance of the first electrode and the second electrode is not particularly limited as long as the sensitivity required for the touch panel sensor can be obtained, but may be in the range of 10Ω / □ to 100Ω / □. Among them, the range of 10Ω / □ to 30Ω / □ is preferable, and the range of 14Ω / □ to 22Ω / □ is particularly preferable. This is because when the sheet resistance of the first electrode and the second electrode is within the above range, a highly sensitive sensor electrode can be obtained.

  The thicknesses of the first electrode and the second electrode are not particularly limited as long as the contact position can be detected with high accuracy. Japanese Patent No. 4610416, Japanese Patent Application Laid-Open No. 2010-286886, and Japanese Patent Application Laid-Open No. 2004-192093. It can be the same as that of a general touch panel sensor having a mesh-like sensor electrode as described in Japanese Patent Laid-Open No. 2010-277392, Japanese Patent Laid-Open No. 2011-129501, and the like. Specifically, the thicknesses of the first electrode and the second electrode are appropriately selected according to the metal material and the like, and can be in the range of 100 nm to 500 nm.

The method for forming the first electrode and the second electrode is not particularly limited as long as it is a method capable of forming a high-definition mesh shape. For example, after forming a metal layer made of the above metal material, the metal layer A method of forming a resist pattern thereon and then etching the metal layer using the resist pattern as a mask can be mentioned.
As a method for forming the metal layer, a general method can be used, and examples thereof include dry processes such as vacuum deposition, sputtering, CVD, and ion plating.
The etching solution used for etching is appropriately set according to the metal material and the like. Specifically, when the metal material is silver, APC, or the like, phosphorous acetic acid or the like can be used. In addition, when the metal material is a copper-based material, a system in which an oxidizing agent typified by phosphorous acetic acid, hydrogen peroxide solution, and sulfuric acid is mixed, hydrobromic acid, hydrohalic acid, and the like can be given. .

  In the case of a copper-based material, the metal layer may be etched and then fired. This is because when the copper-based material is a copper alloy, the additive metal can be transferred to the outer peripheral surface side of the sensor electrode by performing such firing. The firing temperature is preferably in the range of 100 ° C to 300 ° C, and more preferably in the range of 150 ° C to 250 ° C. This is because when the firing temperature is within the above range, the additive metal can be sufficiently deposited on the surface of the sensor electrode, thereby ensuring adhesion with the transparent substrate. Further, the firing atmosphere may be any atmosphere under atmospheric pressure or reduced pressure.

  The arrangement of the first electrode and the second electrode is not particularly limited as long as it is usually in the active area and the first electrode and the second electrode are insulated.

  Further, the arrangement of the first electrode and the second electrode with respect to the transparent substrate is not particularly limited as long as the first electrode and the second electrode are insulated, and the first electrode and the second electrode on one surface of the transparent substrate. Both of the two electrodes may be formed, the first electrode may be formed on one surface of the transparent substrate, and the second electrode may be formed on the other surface of the transparent substrate. In addition, the first electrode and the second electrode may be formed through an insulating layer, and the first electrode and the second electrode may be formed on different transparent substrates, respectively.

In addition, the arrangement of the first electrode with respect to the light shielding portion may be such that the light shielding portion and the first electrode are sequentially stacked on the transparent substrate, and the first electrode and the light shielding portion are sequentially stacked on the transparent substrate. Alternatively, the first electrode may be formed on one surface of the transparent substrate, and the light shielding portion may be formed on the other surface of the transparent substrate. In addition, the arrangement of the second electrode with respect to the light shielding portion is the same as the arrangement of the first electrode with respect to the light shielding portion. As arrangement | positioning with respect to the light-shielding part of a 1st electrode and a 2nd electrode, it selects suitably according to arrangement | positioning with respect to the transparent substrate of said 1st electrode and 2nd electrode.
Especially, it is preferable that the light shielding part, the first electrode, and the second electrode are sequentially laminated on the transparent substrate, or the first electrode, the second electrode, and the light shielding part are sequentially laminated on the transparent substrate. . Since nothing is formed on the other surface of the transparent substrate, a color filter integrated touch panel sensor substrate is manufactured, and then the other surface of the transparent substrate is subjected to a slimming process such as polishing, so that the color filter integrated touch panel This is because it is possible to reduce the thickness of the sensor substrate.
In particular, it is preferable that the light shielding portion, the first electrode, and the second electrode are sequentially laminated on the transparent substrate. This is because the light shielding portion can prevent the first electrode and the second electrode from being visually recognized, and can suppress reflection of external light and the like on the first electrode and the second electrode. Therefore, when the color filter integrated touch panel sensor substrate of the present invention is used for a display device, a display device having excellent visibility and high display quality can be provided.

  Since the arrangement of the first electrode, the second electrode, the light shielding part, and the transparent substrate has been described in detail in the section “1. Positions for forming the sensor electrode and the light shielding part”, the description thereof is omitted here.

3. Light Shielding Part The light shielding part used in the present invention is formed in a pattern on a transparent substrate.

  The pattern shape of the light shielding part is the same as the light shielding part of a general color filter, and is described in detail in the above section “1. Positions for forming the sensor electrode and the light shielding part”.

The relationship between the line width of the pattern-shaped light shielding portion and the line width of the mesh-shaped first electrode and second electrode has been described in detail in the section “2. .
Specifically, the line width of the pattern-shaped light shielding portion is the same as that of a general color filter light shielding portion, and depends on the use of the display device in which the color filter integrated touch panel sensor substrate of the present invention is used. Although it is different, it is preferably within a range of 1 μm to 100 μm, more preferably within a range of 2 μm to 80 μm, and particularly preferably within a range of 3 μm to 50 μm. Since the line width of the light shielding portion is within the above range, the line width of the pattern-shaped light shielding portion is the same as the line width of the mesh-shaped first electrode and the second electrode, or the mesh-shaped first electrode and the first electrode This is because it can be made larger than the line width of the two electrodes.

Further, since the relationship between the pitch of the pattern-shaped light shielding portion and the pitch of the mesh-shaped first electrode and the second electrode has been described in detail in the section “2. Sensor electrode”, description thereof is omitted here. .
Specifically, the pitch of the pattern-shaped light-shielding portion can be the same as that of a general color filter light-shielding portion, for use in a display device in which the color filter-integrated touch panel sensor substrate of the present invention is used. Depending on the plan view, the formation position of the pattern-shaped light-shielding portion and the formation positions of the mesh-shaped first electrode and the second electrode coincide with each other, and may be within a range of 5 μm to 250 μm. Among these, the range of 10 μm to 200 μm is preferable, and the range of 50 μm to 150 μm is particularly preferable. This is because when the pitch of the light shielding portions is within the above range, the pitch of the pattern-shaped light shielding portions can be made the same as the pitch of the mesh-shaped first electrode and second electrode.

Moreover, it is preferable that a light shielding part has insulation. When at least one of the first electrode and the second electrode is formed in contact with the light shielding part, the light shielding part has an insulating property, so that a short circuit can be prevented from occurring between the sensor electrodes. is there.
On the other hand, as illustrated in FIG. 6, when the light-shielding portion 7 is not in contact with the first electrode 3 and the second electrode 4, the light-shielding portion may have an insulating property or a conductive property. Also good.

  As a material constituting the light shielding part, any material having a light shielding property may be used, for example, a metal material such as chromium, a polyimide resin containing light shielding particles such as carbon fine particles or metal oxide, an acrylic resin, an epoxy resin, Examples thereof include resin materials such as photosensitive resins. Especially, since it is preferable that a light shielding part has insulation, a resin material is used preferably. In the present invention, when the formation position of the patterned light-shielding portion and the formation positions of the mesh-shaped first electrode and the second electrode coincide with each other in plan view, the light-shielding portion and the first electrode or the second electrode Therefore, even if a resin material is used for the light shielding portion, a high OD value can be achieved.

  Examples of the method for forming the light shielding part include a method in which a light shielding layer is formed by a sputtering method, a vacuum evaporation method, a coating method, or the like, and the light shielding layer is patterned by a photolithography method or the like.

  The thickness of the light shielding part is appropriately adjusted according to the material of the light shielding part, the required light shielding property, and the like. When a metal material is used for the light shielding part, the thickness of the light shielding part can be set to about 0.2 μm to 0.4 μm. Moreover, when using a resin material for a light shielding part, the thickness of a light shielding part can be about 1 micrometer-3 micrometers.

4). Transparent substrate The transparent substrate used for this invention supports said sensor electrode and light-shielding part.
Examples of the material constituting the transparent substrate include inorganic materials such as glass, and polyester resins such as polyethylene terephthalate, acrylic resins, and resin materials such as polycarbonate. In the case of an inorganic material such as glass, the strength of the color filter integrated touch panel sensor substrate of the present invention is increased, and the setting range of manufacturing conditions such as heating temperature can be widened. On the other hand, in the case of a resin material, the weight of the color filter integrated touch panel sensor substrate of the present invention can be reduced, and flexibility can be added to the color filter integrated touch panel sensor substrate.

  Here, in the case of “transparent” and “transparency”, unless otherwise specified, the operator of the display device using the color filter-integrated touch panel sensor substrate of the present invention can visually recognize from the operation surface. Transparency that does not interfere. Therefore, “transparency” and “transparency” include colorless and transparent, and colored transparency that does not interfere with visibility, and are not defined by strict transmittance, and are used for the color filter integrated touch panel sensor substrate of the present invention. The degree of permeability can be determined according to the above.

  The thickness of the transparent substrate is not particularly limited as long as it can support the sensor electrode and the light-shielding portion, may be a flexible film-like thickness, may be a plate-like thickness, It can be set to a general thickness in a touch panel sensor. For example, when the transparent substrate is made of a resin material and has a flexible film shape, or the transparent substrate is a glass substrate, and slimming treatment is performed on the transparent substrate after the color filter integrated touch panel sensor substrate is manufactured as described above. In the case of applying the thickness, the thickness of the transparent substrate can be, for example, in the range of 50 μm to 300 μm.

  The transparent substrate may be a single layer or a plurality of layers. As a layer laminated in the case of being composed of a plurality of layers, a hard coat layer, an adhesion adjusting layer, a low refractive index layer, a high refractive index layer, and the like can be mentioned in addition to the layers made of the above materials.

5. Wiring In the present invention, wiring may be formed on the surface of the transparent substrate on which the sensor electrode is formed. The wiring is a conductive member through which electricity as a power source or an electrical signal other than the sensor electrode is transmitted.
As the type of wiring, what is generally used for the touch panel sensor may be used. Specifically, the wiring is connected to the sensor electrode, formed at the end of the wiring, and other flexible printed wiring boards and the like. The external connection terminal etc. which are used for connection with a member can be mentioned.

(1) Extraction wiring The extraction wiring used in the present invention is connected to the sensor electrode.
The position where the lead-out wiring is formed is appropriately set according to the type and application of the color filter integrated touch panel sensor substrate of the present invention. The color filter integrated touch panel sensor substrate of the present invention is used as a display device. In general, the extraction wiring is formed in an inactive area.

Examples of the conductive material used for the lead-out wiring include silver, gold, chromium, platinum, aluminum alone, or an alloy mainly composed of any of these. As the metal alloy, an alloy of silver, palladium and copper called APC is widely used. As the metal composite, a three-layer structure of molybdenum, aluminum, and molybdenum called MAM is also applicable. Moreover, the above-mentioned copper-type material can also be used for an electroconductive material. In the case of using a copper-based material, the resistance can be kept low and the power consumption can be reduced.
Since the copper-based material is the same as that used for the sensor electrode, description thereof is omitted here.
When the conductive material used for the extraction wiring is the same as the material used for the sensor electrode, the sensor electrode and the extraction wiring can be formed simultaneously.

  The line width of the extraction wiring can be, for example, about 0.03 mm to 0.2 mm.

(2) External connection terminal The external connection terminal used for this invention is connected to the said extraction wiring, and is used for a connection with a flexible printed wiring board etc. FIG.

  The formation position of the external connection terminal is appropriately set according to the type and application of the color filter integrated touch panel sensor substrate of the present invention, but the color filter integrated touch panel sensor substrate of the present invention displays When used in a device, the external connection terminal is usually formed in an inactive area.

The conductive material used for the external connection terminal can be the same as the conductive material used for the extraction wiring.
The terminal width, thickness and plan view shape of the external connection terminals, and the interval between the external connection terminals in the external connection terminal portion can be the same as those of a general touch panel sensor. Specifically, it can be the same as that described in JP2011-210176A.

6). Other Configurations The color filter-integrated touch panel sensor substrate of the present invention only needs to have a transparent substrate, a sensor electrode, and a light shielding portion, and may have other members as necessary. Examples of the other member include an insulating layer for preventing a short circuit between the first electrode and the second electrode, and a coating layer formed so as to cover the wiring.

(1) Insulating layer The insulating layer is formed to prevent a short circuit between the first electrode and the second electrode.
As a material which comprises an insulating layer, if it has desired insulation, it will not specifically limit, What is generally used for a touch panel sensor can be used. Specific examples include light-transmitting acrylic resins and siloxane resins. Among these, photosensitive siloxane resins can be preferably used.
The thickness of the insulating layer is not particularly limited as long as a short circuit between the first electrode and the second electrode can be prevented, and can be general to the touch panel sensor. Specifically, it can be in the range of 0.5 μm to 3 μm.

(2) Coating layer The coating layer is not particularly limited as long as it has insulating properties. Moreover, it is preferable that an insulating layer has transparency. Examples of the insulating and transparent coating layer include those made of an inorganic material such as an acrylic resin or SiO ₂ .

B. Next, the color filter integrated touch panel sensor of the present invention will be described.
The color filter integrated touch panel sensor of the present invention includes the above-described color filter integrated touch panel sensor substrate and a colored layer formed on the surface of the color filter integrated touch panel sensor substrate on which the light shielding portion is formed. It is characterized by this.

FIG. 10 is a schematic cross-sectional view showing an example of the color filter integrated touch panel sensor of the present invention, and corresponds to an example of an AA cross section of the color filter integrated touch panel sensor substrate shown in FIG. The color filter integrated touch panel sensor substrate 1 shown in FIG. 10 is the same as the color filter integrated touch panel sensor substrate 1 shown in FIG.
As illustrated in FIG. 10, the color filter integrated touch panel sensor 10 is formed on the surface on which the color filter integrated touch panel sensor substrate 1 and the light shielding portion 7 of the color filter integrated touch panel sensor substrate 1 are formed. And a colored layer 11 having a red colored layer 11R, a green colored layer 11G, and a blue colored layer 11B formed in the opening of the light shielding portion 7.

11 and 12 are schematic sectional views showing other examples of the color filter integrated touch panel sensor of the present invention, and correspond to an example of the AA cross section of the color filter integrated touch panel sensor substrate shown in FIG. To do. The color filter integrated touch panel sensor substrate 1 shown in FIGS. 11 and 12 is the same as the color filter integrated touch panel sensor substrate 1 shown in FIGS. 5 and 6, respectively.
FIGS. 13A, 13B, 14A to 14C, and 15A to 15C are schematic cross-sectional views showing other examples of the color filter integrated touch panel sensor of the present invention. This corresponds to an example of an AA section of the color filter integrated touch panel sensor substrate shown in FIG. Further, the color filter integrated touch panel sensor substrate 1 shown in FIGS. 13A, 13B, 14A to 14C, and FIGS. 15A to 15C is respectively shown in FIG. This is the same as the color filter integrated touch panel sensor substrate 1 shown in FIGS. 8A to 8C and FIGS. 9A to 9C.
In any color filter integrated touch panel sensor 10, a color filter integrated touch panel sensor substrate 1 is provided with a red colored layer 11R, a green colored layer 11G, and a blue colored layer 11B on the surface where the light shielding portion 7 is formed. Layer 11 is formed.

According to the present invention, since the above-described color filter integrated touch panel sensor substrate is used, it is possible to suppress the occurrence of moire. Further, it is possible to improve the OD value of the portion where the light shielding portion and the first electrode or the second electrode are stacked.
Therefore, a display device excellent in display quality and operability can be obtained by using the color filter integrated touch panel sensor of the present invention.

  The color filter-integrated touch panel sensor substrate has been described in detail in the above “A. Color filter-integrated touch panel sensor substrate”, and a description thereof will be omitted here. Hereinafter, another configuration of the color filter integrated touch panel sensor of the present invention will be described.

1. Colored layer The colored layer used in the present invention is formed on the surface on which the light shielding portion of the color filter integrated touch panel sensor substrate is formed, that is, on the surface on which the light shielding portion of the transparent substrate is formed. And having a plurality of colored layers.

  There are no particular limitations on the multi-colored colored layer as long as it can produce a desired color when the color filter integrated touch panel sensor of the present invention is used in a display device. The coloring layer of each color currently used can be used. Usually, three colored layers of a red colored layer, a green colored layer, and a blue colored layer are used.

  The colored layers of a plurality of colors are usually formed in a pattern so that the colored layers are regularly arranged. The arrangement pattern of the colored layers of the plurality of colors is not particularly limited as long as the formation position of the light shielding portion that defines the arrangement pattern and the formation position of the first electrode and the second electrode can be matched. A general arrangement pattern can be applied. Examples of the arrangement pattern include a stripe type, a mosaic type, a triangle type, and a four-pixel arrangement type. Moreover, the area of each colored layer is not particularly limited, and is appropriately adjusted according to the resolution of the display device in which the color filter integrated touch panel sensor of the present invention is used.

  The material for the colored layer is the same as that used for the colored layer of a general color filter. For example, a resin material containing a colorant can be used.

  The thickness of the colored layer is not particularly limited as long as a good image display can be performed when the color filter integrated touch panel sensor of the present invention is used in a display device, and specifically, 1 μm to 3 μm. Can be set within the range.

  The method for forming the colored layer is not particularly limited as long as it can form a colored layer having a desired thickness without mixing colors. For example, a known method such as a photolithography method or an inkjet method is used. Can do.

2. Other Configurations The color filter integrated touch panel sensor of the present invention may have a color filter integrated touch panel sensor substrate and a colored layer, and may include other members as necessary. The other member is appropriately selected according to the use of the color filter integrated touch panel sensor of the present invention, and examples thereof include an overcoat layer, a transparent electrode layer, a spacer, and an alignment film. Since these members are the same as those of a general color filter, description thereof is omitted here.

C. Next, the color filter integrated touch panel module of the present invention will be described.
The color filter integrated touch panel module of the present invention is formed on the color filter integrated touch panel sensor, a flexible printed wiring board connected to the color filter integrated touch panel sensor, and the color filter integrated touch panel sensor. It has an adhesive layer and a cover lens formed on the adhesive layer.

  FIG. 16 is a schematic sectional view showing an example of the color filter integrated touch panel module of the present invention. As illustrated in FIG. 16, the color filter integrated touch panel module 50 includes the color filter integrated touch panel sensor 10, a flexible printed wiring board 51 connected to the color filter integrated touch panel sensor 10, and a color filter integrated type. An adhesive layer 52 formed on the touch panel sensor 10 and a cover lens 53 formed on the adhesive layer 52 are provided.

  According to the present invention, since the above-described color filter integrated touch panel sensor is used, it is possible to suppress the occurrence of moire.

  The color filter integrated touch panel sensor has been described in detail in the section “B. Color filter integrated touch panel sensor”, and therefore, the description thereof is omitted here. Hereinafter, another configuration of the color filter integrated touch panel module of the present invention will be described.

1. Flexible printed wiring board The flexible printed wiring board used in the present invention is connected to the color filter integrated touch panel sensor.
Such a flexible printed circuit board is not particularly limited as long as it can supply power to the electrode, output a detection signal, and the like. JP 2009-64343 A, JP 9-9 146680, Japanese Patent No. 2587975, Japanese Patent Application Laid-Open No. 2011-124332, Japanese Patent Application Laid-Open No. 2011-76514, and the like.

Specifically, examples of the connection terminal include a front-side connection terminal formed on one surface of a flexible substrate and a back-side connection terminal formed on the other surface.
The flexible substrate is not particularly limited as long as it has a desired insulating property, and examples thereof include a flexible polyimide film having a thickness of about 25 μm.
Further, the connection terminal is not particularly limited as long as it has desired conductivity. For example, it can be the same as the external connection terminal in the color filter integrated touch panel sensor substrate.

Further, the flexible printed wiring board only needs to have a flexible board and connection terminals, and may have other configurations as necessary.
As other configurations, for example, a wiring connected to the connection terminal, a protective layer formed so as to cover the wiring, and the like can be given. In addition, when the input information processing unit or the color filter integrated touch panel module of the present invention is used in a display device, a control unit such as a video information processing unit is also included.
The wiring can be the same as the extraction wiring. Moreover, as a protective layer, if it has insulation, it will not specifically limit, For example, what consists of a polyimide resin can be mentioned.
Further, the method for connecting the flexible printed circuit board to the color filter integrated touch panel sensor is not particularly limited as long as the two can be electrically connected. For example, the color filter integrated touch panel sensor. A method for disposing an anisotropic conductive film as disclosed in JP 2010-278025 A between the external connection terminals formed on the substrate and the connection terminals formed on the flexible printed wiring board, and performing thermocompression bonding Etc.

2. Adhesive Layer The adhesive layer used in the present invention is formed on one surface of the color filter integrated touch panel sensor, and adheres the color filter integrated touch panel sensor and the cover lens.

The adhesive layer has transparency.
The adhesive layer is not particularly limited as long as it can adhere the color filter integrated touch panel sensor and the cover lens with a desired adhesive force, and is generally used for a touch panel disclosed in Japanese Unexamined Patent Application Publication No. 2009-37312. What is used for can be used. Specifically, use is made of a curable resin such as a photocurable resin having a reactive vinyl group such as an acrylate type or a methacrylate type, an acrylic adhesive, or an optical transparent double-sided tape abbreviated as an OCA tape. Can do.
Among them, an acrylic material is preferably used for the adhesive layer. This is because acrylic pressure-sensitive adhesives and OCAs using acrylic materials are excellent in adhesion and transparency.

  The thickness of the adhesive layer is not particularly limited as long as it can adhere the color filter integrated touch panel sensor and the cover lens with a desired adhesive force, and can be, for example, in the range of 1 μm to 500 μm. In particular, it is preferably in the range of 50 μm to 100 μm. This is because excellent transparency can be obtained when the thickness is within the above range.

  The position of the adhesive layer is not particularly limited as long as both the color filter integrated touch panel sensor and the cover lens can be bonded with a desired adhesive force, and the adhesive layer is formed on the entire surface in contact with both. Alternatively, the adhesive layer may be formed in a pattern only in the inactive area outside the active area.

3. Cover Lens The cover lens used in the present invention is formed on the adhesive layer, and is formed to protect the color filter integrated touch panel sensor from scratches and the like.

The cover lens has transparency.
The material constituting the cover lens is not particularly limited as long as a cover lens having a desired protective function can be obtained. For example, glass such as chemically tempered glass, soda glass, quartz glass, and alkali-free glass , Resins such as polycarbonate, polyacrylic acid ester and polymethacrylic acid ester, and other inorganic materials.

  The thickness of the cover lens is not particularly limited as long as a desired protective function can be exhibited, and is appropriately set according to the material constituting the cover lens.

  In addition, the cover lens may be a single layer made of the above material, or may be a laminate of a plurality of layers. As a cover lens in which a plurality of layers are laminated, for example, those obtained by laminating layers made of different materials among the above materials, or those having a functional layer such as an antireflection layer or an antifouling layer in addition to the layers made of the above materials Can be mentioned. When the cover lens is made of glass, the cover lens may have a scattering prevention film on the surface side as a functional layer.

4). Other Configurations The color filter integrated touch panel module of the present invention only needs to have the color filter integrated touch panel sensor, the flexible printed wiring board, the adhesive layer, and the cover lens, and has other configurations as necessary. You may do it.
As another configuration, for example, a protective film for improving the reliability of the color filter integrated touch panel sensor is formed on the surface opposite to the surface on which the cover lens of the color filter integrated touch panel sensor is formed. Can be mentioned. The protective film and the adhesive layer are not particularly limited as long as the reliability of the touch panel can be improved.

  The present invention is not limited to the above embodiment. The above-described embodiment is an exemplification, and the present invention has substantially the same configuration as the technical idea described in the claims of the present invention, and any device that exhibits the same function and effect is the present invention. It is included in the technical scope of the invention.

  The following examples illustrate the present invention in more detail.

[Example 1]
(Production of color filter integrated touch panel sensor)
A glass substrate was used as the transparent substrate. First, a photosensitive resin composition containing light-shielding particles is applied onto a glass substrate with a spin coater, pattern exposure, development and baking are performed, and a light-shielding portion having a thickness of 3 μm, a line width of 10 μm, a horizontal pitch of 43 μm, and a vertical pitch of 150 μm Formed.

  Next, a metal layer having a metal composition of Cu: 99 at% and Mn: 1 at% and having a thickness of 300 nm was formed on the glass substrate on which the light shielding portion was formed by a sputtering method. Next, a positive resist was applied on the metal layer and patterned by photolithography. At this time, the resist pattern has openings corresponding to mesh-shaped first and second electrodes having a line width of 7 μm, a horizontal pitch of 43 μm, and a vertical pitch of 150 μm, and wiring having a line width of 0.02 mm to 0.05 mm. It was. Subsequently, the metal layer was etched using an etching solution mixed acid SEA-517 manufactured by Kanto Chemical Co., Ltd., and the resist pattern was removed, thereby forming mesh-like first and second electrodes and wiring. The obtained mesh-like first and second electrodes and wirings were arranged as illustrated in FIG.

Next, a photosensitive resin composition containing a red pigment is applied to the glass substrate on which the light shielding portion, the mesh-like first electrode and the second electrode, and the wiring are formed, using a spin coater, and pattern exposure, development, and baking are performed. And a red colored layer was formed. Similarly, a blue colored layer and a green colored layer were also formed.
Subsequently, an overcoat layer was formed so as to cover the colored layer. Thereafter, an ITO electrode was formed on the overcoat layer.

[Comparative Example 1]
(Production of color filter integrated touch panel sensor)
A color filter integrated touch panel sensor was produced in the same manner as in Example 1 except that the light shielding portion had a line width of 10 μm, a horizontal pitch of 70 μm, and a vertical pitch of 200 μm.

[Evaluation]
A liquid crystal display device was manufactured using the color filter integrated touch panel sensor of Example 1 and Comparative Example 1, and the moire was visually observed in a state where the liquid crystal display device was displayed in white. In Example 1, moire did not occur, whereas in Comparative Example 1, moire occurred.

DESCRIPTION OF SYMBOLS 1 ... Color filter integrated touch-panel sensor substrate 2, 2a, 2b ... Transparent substrate 3 ... 1st electrode 4 ... 2nd electrode 5, 6 ... Wiring 7 ... Light-shielding part 8 ... Insulating layer 10 ... Color filter integrated touch-panel sensor 11 … Colored layer

Claims (5)

A transparent substrate;
A sensor electrode formed on the transparent substrate and having a mesh-shaped first electrode and a mesh-shaped second electrode insulated from the first electrode;
A color filter integrated touch panel sensor substrate having a light shielding portion formed in a pattern on the transparent substrate,
A color filter-integrated touch panel sensor substrate, wherein a formation position of the mesh-shaped first electrode and the second electrode coincides with a formation position of the pattern-shaped light-shielding portion in plan view.   2. The color filter-integrated touch panel sensor substrate according to claim 1, wherein a line width of the first electrode and a line width of the second electrode are smaller than a line width of the light shielding portion.   The color filter-integrated touch panel sensor substrate according to claim 1, wherein the light shielding portion has an insulating property. A substrate for a color filter integrated touch panel sensor according to any one of claims 1 to 3,
A color filter integrated touch panel sensor, comprising: a color layer formed on a surface of the color filter integrated touch panel sensor substrate on which a light shielding portion is formed. The color filter integrated touch panel sensor according to claim 4;
A flexible printed wiring board connected to the color filter integrated touch panel sensor;
An adhesive layer formed on the color filter integrated touch panel sensor;
A color filter integrated touch panel module, comprising: a cover lens formed on the adhesive layer.

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