JP3182005U - Touch panel - Google Patents

Abstract

A touch panel with improved touch sensitivity and linearity of touch panel characteristics is provided.
A substrate has a display area, and a first peripheral area and a second peripheral area located on both sides of the display area, and a transparent conductive pattern is located in the display area. The plurality of second electrodes 2052 and the plurality of first electrodes 2051 for detecting a touch operation are connected to the electrode conductors 2053a and 2053b in two directions, and 2053a The electrode conductor 2053b extends to the first peripheral region 203a, and is connected in parallel by peripheral lead structures 209 and 210 that extend to the second peripheral region 203b and bypass the display region.
[Selection] Figure 5

Description

The present invention relates to a touch panel, and more particularly to a touch panel with a changed wiring structure.

At present, in the home appliance market, touch panels are applied to many products such as multi-function mobile phones, mobile phones, tablet computers, and notebook computers. The touch panel is a novel man-machine interface that allows the user to directly operate on objects displayed on the monitor and issue commands using a finger or stylus, making it convenient and intuitive. Rich.

At present, the operation principle of a touch panel that is frequently seen is a resistive film method, a capacitance method, a surface acoustic wave method, and the like. The touch panel generally includes a display area and a peripheral area surrounding the display area. The display area is used to generate a touch detection signal. In the peripheral area, a plurality of leads used for performing calculations by transmitting the touch detection signal to the signal processing mechanism are installed. Thereby, the coordinates of the touch position can be determined.

Generally, the transparent electrode in the display area is composed of electrodes in the X direction and the Y direction. Please refer to FIG. FIG. 1 is a plan view showing a conductive pattern of a conventional touch panel 100. As shown in FIG. 1, the outside of the display area 101 of the touch panel 100 is surrounded by a peripheral area 103. The peripheral area 103 includes an upper area 103a, a lower area 103b, a right area 103c, and a left area 103d.

A plurality of peripheral leads 106 are formed in the upper region 103 a of the peripheral region 103 of the touch panel 100.

A conductive pattern 104 is formed on the display area 101 of the touch panel 100. The conductive pattern 104 includes a plurality of first electrodes 1041, a plurality of second electrodes 1042, and a plurality of intervals 1043. The plurality of first electrodes 1041 are arranged with an interval 1043 therebetween. A plurality of second electrodes 1042 are provided at each interval 1043. That is, a plurality of second second electrodes 1042 are combined with one first electrode 1041. Each of the plurality of second electrodes 1042 in each interval 1043 has an electrode lead wire 10421, and all the electrode lead wires 10421 extend from the display region 101 to the upper region 103a to the peripheral leads 106 on the upper region 103a. Each is connected. The upper end of each first electrode 1041 is also connected to the peripheral lead 106 on the upper region 103a.
By connecting the electrode lead wire 10421 and the peripheral lead 106, a detection signal generated from the electrode is transmitted to a processing mechanism (not shown).

However, in the touch panel according to the above-described conventional technology, a wide non-detection region A occupied by the electrode conductive wire 10421 of the second electrode 1042 in each interval 1043 is formed. That is, since the electrode conductors 10421 of all the second electrodes 1042 are laid toward the upper region 103a, the width of the non-detection region A is increased. Thereby, since the distance between each array of the conductive patterns 104 is affected, the touch sensitivity is inferior, and the touch panel 100 is inferior in linearity due to the characteristics. In addition, since the number of contact points of the lead is too large, the failure rate when connecting the flexible circuit board is high.

For this reason, the industry has been required to reduce the width and space of the non-detection area and maximize the display area by improving the conductive pattern of the conventional touch panel.

JP 2009-175784 A

The main object of the present invention is that the electrode conductors of the plurality of second electrodes of the transparent conductive pattern provided in the display region are installed extending in two or more directions, so that the second The space between the two first electrodes is occupied by the electrode lead wire of the electrode, and the width and space of the non-detection region do not increase, so that the touch panel structure that can improve the touch sensitivity and the linearity of the touch panel is provided. It is to provide.
Another object of the present invention is that at least one parallel connection region including a peripheral lead structure is installed in the peripheral region of the touch panel, and the electrode leads of the second electrodes arranged in the same lateral direction by the peripheral lead structure are parallel. By connecting, the number of leads of the peripheral lead structure is greatly reduced from the number of electrode conductors, and the number of leads reduces the number of contact points of the leads. An object of the present invention is to provide a touch panel structure capable of reducing the defect rate.

In order to solve the above-described problem, the touch panel of the present invention includes a substrate, at least one parallel connection region, a plurality of first electrodes, and a plurality of second electrodes. The substrate has a display area and a peripheral area located outside the display area. At least one parallel connection region is defined in the peripheral region. The parallel connection region includes a plurality of insulating portions and a peripheral lead structure straddling the insulating portions. The plurality of first electrodes and the plurality of second electrodes are provided in the display region. Each second electrode has an electrode lead. The electrode conductor extends from the display area to the parallel connection area and is electrically connected to the peripheral lead structure.

  The peripheral lead structure includes a plurality of first leads and a plurality of second leads. The plurality of first leads are connected in parallel to some of the electrode conductors, and the plurality of second leads are connected in parallel to the remaining electrode conductors.

A transparent conductive pattern is formed by the first electrode, the second electrode, and the electrode lead wire.

The peripheral area includes a first peripheral area, a second peripheral area, a third peripheral area, and a fourth peripheral area. The first peripheral area and the second peripheral area are the first side of the display area. And the second side opposite to the first side. The third peripheral region and the fourth peripheral region are located on the third side of the display region and the fourth side opposite to the third side.

  More specifically, the touch panel of the present invention includes a substrate, a transparent conductive pattern, and a first parallel connection region. The substrate includes a display area, a first peripheral area, and a second peripheral area. The first peripheral region and the second peripheral region are located on the first side of the display region and on the second side opposite to the first side. The transparent conductive pattern is provided in the display area. The transparent conductive pattern includes a plurality of first electrodes and a plurality of second electrodes. The plurality of first electrodes are arranged at intervals to define a plurality of intervals. That is, each interval is located between each two first electrodes. The plurality of second electrodes are provided in each interval and face the first electrode. Some of the second electrodes within each interval have first electrode conductors, and the remaining second electrodes have second electrode conductors. The plurality of first electrodes extend to the first peripheral region. The plurality of second electrode conductors extend to the second peripheral region. The first parallel connection region is defined in the first peripheral region. The first parallel connection region includes a plurality of first insulating portions and a first peripheral lead structure. The first insulating portion is provided on the first electrode conductor. The first peripheral lead structure extends over the plurality of first insulating portions and is connected to the plurality of first electrode conductors.

  The first peripheral lead structure includes a plurality of first leads and a plurality of second leads. The plurality of first leads are connected to some first electrode conductors. The plurality of second leads are connected to the remaining first electrode conductors. The plurality of first leads extend from the first peripheral region, pass through the third peripheral region, and reach the second peripheral region. The plurality of second leads extend from the first peripheral region, pass through the fourth peripheral region, and reach the second peripheral region.

  The touch panel of the present invention further includes a second parallel connection region defined in the second peripheral region. The second parallel connection region includes a plurality of second insulating portions and a second peripheral lead structure. The plurality of second insulating portions are provided on the second electrode conductor. The second peripheral lead structure extends over the plurality of second insulating portions and is connected to the plurality of second electrode conductors. The second peripheral lead structure includes a plurality of third leads, a plurality of fourth leads, and a plurality of fifth leads. The plurality of third leads are connected to some second electrode conductors. The plurality of fourth leads are connected to the remaining second electrode conductors. The plurality of fifth leads are connected to the plurality of first electrodes.

  The first peripheral lead structure and the second peripheral lead structure are formed of a metal material such as silver paste, copper, or molybdenum.

In the touch panel of the present invention, the electrode conductors of the plurality of second electrodes of the transparent conductive pattern provided in the display region are installed in two or two or more directions, and are extended and installed. Since the space between the two first electrodes is occupied by the electrode conducting wire and the width and space of the non-detection region do not increase, the touch sensitivity and the linearity of the touch panel can be improved. Further, at least one parallel connection region including a peripheral lead structure is installed in the peripheral region of the touch panel, and the electrode leads of the second electrodes arranged in the same lateral direction are connected in parallel by the peripheral lead structure, so that the peripheral Since the number of leads in the lead structure is significantly smaller than the number of electrode conductors and the number of leads is reduced, the number of contact points of the leads is also reduced, so the defect rate when combined with a flexible circuit board can be reduced. it can.

It is a top view which shows the conductive pattern of the conventional touch panel. It is a top view which shows the board | substrate and shielding layer of the touchscreen by one Embodiment of this invention. It is a top view which shows the state which formed the transparent conductive pattern in the display area of the touchscreen by one Embodiment of this invention. 1 is a plan view illustrating a state in which a first parallel connection region of a touch panel according to an embodiment of the present invention is defined and an insulating portion is formed. FIG. 1 is a plan view showing a state in which a first peripheral lead structure of a touch panel according to an embodiment of the present invention is formed. It is a top view which shows the state which connects in parallel the 2nd electrode corresponding to the horizontal direction of each row | line | column of the touchscreen by one Embodiment of this invention by the 1st periphery lead structure. It is a top view which shows the state which connects in parallel the 2nd electrode corresponding to the horizontal direction of each row | line | column of the touchscreen by one Embodiment of this invention by the 1st periphery lead structure. It is a top view which shows the state which connects in parallel the 2nd electrode corresponding to the horizontal direction of each row | line | column of the touchscreen by one Embodiment of this invention by the 1st periphery lead structure. It is a top view which shows the state which connects in parallel the 2nd electrode corresponding to the horizontal direction of each row | line | column of the touchscreen by one Embodiment of this invention by the 1st periphery lead structure. It is a top view which shows the structure of the same effect as the 1st parallel connection area | region of FIG. FIG. 6 is a cross-sectional view taken along line Y-Y ′ in FIG. 5. FIG. 6 is a cross-sectional view taken along line X-X ′ in FIG. 5. It is a top view which shows the touch panel by other embodiment of this invention.

DESCRIPTION OF EMBODIMENTS Embodiments showing the objects, features, and effects of the present invention will be described in detail with reference to the drawings. The same members will be described using the same reference numerals.

Please refer to FIG. The manufacturing process of the touch panel 200 of the present invention will be described in order with reference to FIGS. As shown in FIG. 2, first, a substrate 201 serving as a base on which a conductive pattern inside the touch panel 200 is installed is prepared. The substrate 201 is a transparent (translucent) plate made of silica glass, polymethyl methacrylate (PMMA), polycarbonate (PC), polyethylene terephthalate (PET), or the like. The substrate 201 is used to protect a conductive line inside the touch panel 200 and provide a plane (an outer surface of the substrate 201) on which a user performs a touch operation with a finger or a stylus. The substrate 201 transmits image light emitted from a display module (such as an LCD display module) inside the touch panel 200 and displays an image to the user. The touch panel 200 of the present embodiment will be described from a viewing angle obtained by looking down on the back surface of the substrate 201. Here, the back surface (inner surface) is a surface that the user does not contact when the touch panel 200 is used.

As shown in FIG. 2, the substrate 201 includes a display area 202 and a peripheral area provided outside the display area 202. The peripheral area includes a first peripheral area 203a, an upper second peripheral area 203b, a left third peripheral area 203c, and a right fourth peripheral area 203d from the lower side of the figure surrounding the display area 202. is there.
That is, the first peripheral region 203a and the second peripheral region 203b are located on the first side of the display region 202 and the second side opposite to the first side with the display region interposed therebetween. The third peripheral region 203c and the fourth peripheral region 203d are respectively located on the third side of the display region and the fourth side located on the opposite side to the third side. The shielding layer (patterned mask layer) 204 corresponds to the positions of the first peripheral region 203a, the second peripheral region 203b, the third peripheral region 203c, and the fourth peripheral region 203d. The shielding layer 204 has a function of shielding and concealing the outer periphery of the display area 202. The shielding layer 204 of the present embodiment is opaque (translucent) and is formed by printing or applying a material that is an insulating material.

As shown in FIG. 3, after forming the display area 202, the peripheral areas 203 a to 203 d and the shielding layer 204 on the substrate 201, a conductive pattern inside the touch panel 200 is manufactured. The transparent conductive pattern 205 is formed in the display area 202 by photoetching or other methods. The touch area of the touch panel 200 is configured by the transparent conductive pattern 205. The transparent conductive pattern 205 is an electrostatic capacitance type electrode, and includes a plurality of first electrodes 2051 in the vertical direction and a plurality of rows of second electrodes that are positioned beside the first electrodes 2051 and are paired therewith. 2052. In the drawing of this embodiment, the same sign is written on each of the plurality of second electrodes 2052 corresponding to the plurality of rows in the horizontal direction (for example, the sign of the electrodes in the first row in the horizontal direction is Both are written as RX1).
A plurality of intervals 206 are defined in the display region 202 by arranging the plurality of first electrodes 2051 at intervals in the vertical direction. That is, each interval 206 is located between each two first electrodes 2051. The plurality of second electrodes 2052 are provided in each interval 206 relative to the first electrode 2051.
In addition, some of the second electrodes 2052 in each interval 206 have a first electrode conductor 2053a, and the remaining second electrode 2052 has a second electrode conductor 2053b. The plurality of first electrode conductors 2053a extend in one direction (downward in the figure) to the first peripheral region 203a, while the plurality of second electrode conductors 2053b extend in the opposite direction (upward in the figure). ) Toward the second peripheral region 203b. That is, a part of the second electrode conductor (first electrode conductor 2053a) and the remaining electrode conductor (second electrode conductor 2053b) extend in opposite directions.

A plurality of first electrodes 2051 and second electrodes 2052 are arranged in an array on the entire surface of the substrate 201, and the touch operation is detected as an electrode for detecting a touch operation (slide, click, etc.) performed on the substrate surface by the user. Convert to signal. The non-detection region A ′ is configured by the width occupied by the plurality of first electrode conductors 2053 a and the plurality of second electrode conductors 2053 b in each interval 206.

The material of the first electrode 2051, the second electrode 2052, the first electrode conductor 2053a, and the second electrode conductor 2053b of the transparent conductive pattern 205 is made of indium tin oxide so that the image display on the display region 202 is not hindered. (Indium Tin Oxide: ITO), Indium Zinc Oxide (Indium Zinc Oxide: IZO), Cadmium Tin Oxide (CTO), Aluminum Doped Zinc Oxide (AZO), Indium Tin Zinc Oxide (indium tin) zinc oxide (ITZO), zinc oxide (cadmium oxide), cadmium oxide, hafnium oxide (HfO ₂ ), indium gallium Zinc oxide (indium gallium zinc oxide: InGaZnO), indium gallium zinc magnesium oxide (InGaZnMgO), indium gallium magnesium oxide (Indium gallium magnesium) ) And the like.

Please refer to FIG. As shown in FIG. 4, after the transparent conductive pattern 205 is formed, at least one parallel connection region is defined in the first peripheral region 203a or the second peripheral region 203b. In the present embodiment, the first parallel connection region 207 is defined by the first peripheral region 203a. In the first parallel connection region 207, a plurality of first insulating portions 208 are provided to cover a part of the first electrode conductor 2053a extending from each interval 206 to the first peripheral region 203a. The operation of the protruding end that is not covered with the first insulating portion 208 of the plurality of first electrode conductors 2053a will be described in detail in the following description of FIG. The first insulating portion 208 is made of a multilayer polyester film or an inorganic material.

As shown in FIG. 5, after the first parallel connection region 207 is defined and the first insulating portion 208 covers the plurality of first electrode conductors 2053a, the first peripheral region 203a and the second peripheral region In 203b, a first peripheral lead structure 209 and a second peripheral lead structure 210 are formed. The first peripheral lead structure 209 is positioned on the shielding layer 204 in the first parallel connection region 207, extends, and straddles the first insulating portion 208.
The protruding ends of the plurality of first electrode conductors 2053a that are not covered by the first insulating portion 208 are connected to the first peripheral lead structure 209 in the first parallel connection region 207 in which the first peripheral lead structure 209 is extended. Connected. The first peripheral lead structure 209 includes at least one first lead 2091 and second lead 2092.
The first lead 2091 is connected to a part of the first electrode conducting wire 2053a, and the second lead 2092 is connected to the remaining part of the first electrode conducting wire 2053a while being distributed to the left and right. That is, the first electrode conductor 2053a of the second electrode 2052 corresponding to the same lateral direction is connected in parallel by the first lead 2091 and the second lead 2092 (the detailed parallel connection structure is shown in FIGS. (It will be described in the explanation of FIG. 10). By this parallel connection method, the number of contacts of the first electrode conductor 2053a is reduced.

The first lead 2091 extends from the first peripheral area 203a, bypasses the display area, passes through the third peripheral area 203c, and reaches the second peripheral area 203b.
The second lead 2092 extends from the first peripheral region 203a, bypasses the display region, and reaches the second peripheral region 203b via the fourth peripheral region 203d.
The second peripheral lead structure 210 includes a plurality of third leads 2101 connected to the second electrode conductor 2053 b and the first electrode 2051. The first peripheral lead structure 209 and the second peripheral lead structure 210 are electrically connected to the IC main board or the flexible substrate of the LCD by a flexible bonding structure.

Here, the first peripheral lead structure 209 and the second peripheral lead structure 210 are made of a metal material such as silver paste, copper, or molybdenum. When the silver paste is employed, printing is performed on the shielding layer 204 in the first peripheral region 203a to the fourth peripheral region 203d by a printing process. When other metal materials are employed, they can be formed by printing or photoetching.

The parallel connection structure of the first peripheral lead structure 209 and the first electrode conductor 2053a will be described in detail. Reference is made to FIGS. In FIG. 6 to FIG. 9, in order to clearly show the connection between the electrode conductor and each lead, leads and electrode conductors not mentioned in the description are not shown.

As shown in FIG. 6, the first electrodes 2052 (RX8 in the figure) connected to the second electrodes 2052 corresponding to the eighth column in the vertical direction are positioned in the horizontal direction of the first electrodes 2051 within the above-described intervals 206. The electrode conducting wire 2053a passes below the first insulating portion 208 and is connected to the second lead 2092 of the first peripheral lead structure 209. The second lead 2092 extends from the first peripheral region 203a, bypasses the display region, passes through the fourth peripheral region 203d, and reaches the first peripheral region 203b.

As shown in FIG. 7, the first electrode conductor 2053a connected to the second electrode 2052 (RX7 in the drawing) corresponding to the horizontal direction of the seventh vertical column in each of the above-mentioned intervals 206 is the first insulation. It passes below the portion 208 and is connected to the second lead 2092 of the first peripheral lead structure 209. The second lead 2092 extends from the first peripheral area 203a, bypasses the display area, and reaches the first peripheral area 203b via the fourth peripheral area 203d.

As shown in FIG. 8, the first electrode conductor 2053a connected to the second electrode 2052 (RX6 in the figure) corresponding to the horizontal direction of the sixth vertical column in each of the above-described intervals 206 is the first insulation. The first lead 2091 passes through the lower portion 208 and is connected to the first lead 2091 of the first peripheral lead structure 209. The first lead 2091 extends from the lower first peripheral region 203a and is opposite to the above. It bypasses the display area and reaches the first peripheral area 203b via the third peripheral area 203c.

As shown in FIG. 9, the first electrode conducting wire 2053a connected to the second electrode 2052 (RX5 in the figure) corresponding to the horizontal direction of the fifth vertical column in each of the above-described intervals 206 is the first insulation. After passing under the portion 208, it is connected to the first lead 2091 of the lower first peripheral lead structure 209, but the first lead 2091 extends from the first peripheral region 203a and is similarly displayed. It bypasses the area and reaches the first peripheral area 203b via the third peripheral area 203b.

FIG. 10 shows a structure that has the same effect as the parallel connection region in FIG. In FIG. 10, the insulating portion 208 shown in FIG. 5 is not shown in order to clarify the parallel connection straddling relationship between each lead and the electrode conductor.
The first electrode conductors 2053a of the second electrodes 2052 corresponding to the horizontal direction of the same vertical column in FIG. 10 are connected in parallel by the left and right first leads 2091 and second leads 2092, respectively. A portion where the first lead 2091 and the second lead 2092 are shown in a loop indicates a portion extending over the first insulating portion 208. As a result, the second electrode 2052 corresponding to the other horizontal direction is insulated from the first electrode conductor 2053a.

  Touch panel 100 further includes a protective layer (not shown). The protective layer covers the transparent conductive pattern 205, the insulating portion 208, the first peripheral lead structure 209, and the second peripheral lead structure 210. The purpose of the protective layer is to prevent each element or conductive pattern in the display region 202 and the peripheral regions 203a to 203d from being chemically eroded or physically damaged. The material of the protective layer is an inorganic material such as silicon nitride, silicon oxide, silicon oxynitride, acrylic resin, or other suitable material.

FIG. 11 is a cross-sectional view taken along line YY ′ in FIG. In order to simplify the drawings, members in other areas of the touch panel are omitted, and descriptions corresponding thereto are also omitted.
From FIG. 11, it can be clearly seen that the substrate 201 is a base on which the internal conductive pattern is installed. The shielding layer 204 is formed on the substrate 201. The first electrode conductor 2053a of the second electrode 2052 (see FIG. 5) extends to the shielding layer 204 in the first peripheral region 203a, and the insulating portion 208 covers the first electrode conductor 2053a. . The first lead 2091 of the first peripheral lead structure 209 (see FIG. 5) is formed on the insulating portion 208 across the electrode conducting wire 2053a.

12 is a cross-sectional view taken along line XX ′ in FIG. In order to simplify the drawings, members in other areas of the touch panel are omitted, and descriptions corresponding thereto are also omitted.
From FIG. 12, the first lead 2091 of the first peripheral lead structure 209 (see FIG. 5) extends from the shielding layer 204 to the first insulating portion 208, and the first lead 2091 below the first insulating portion 208. It can be clearly seen that the electrode conductor 2053a is connected to the portion not covered with the first insulating portion 208.

FIG. 13 is a plan view illustrating a touch panel according to another embodiment of the present invention. Since the entire structure of the touch panel according to the present embodiment is substantially the same as that of the above-described embodiment, the same members and symbols are not exaggerated. The same members as those in the above embodiment use the same reference numerals in this embodiment.
As shown in FIG. 13, in the present embodiment, a first parallel connection region 207 is defined in the first peripheral region 203a, and a second parallel connection region 307 is defined in the second peripheral region 203b. .
The second parallel connection region 307 includes a plurality of second insulating portions 308 and a second peripheral lead structure 309. A part of the plurality of second insulating portions 308 covers the plurality of second electrode conductors 2053b. The second insulating portion 308 is a multilayer polyester film or an inorganic material.
The second peripheral lead structure 309 is located on the second parallel connection region 307, installed on the shielding layer 204, and straddled on the second insulating portion 308. The material and manufacturing process of the second peripheral lead structure 309 are the same as those of the first peripheral lead structure 209.
The second peripheral lead structure 309 includes a plurality of third leads 3091, fourth leads 3092, and fifth leads 3093. The third lead 3091 is connected to a part of the second electrode conductor 2053b. The fourth lead 3092 is connected to the remaining second electrode conductor 2053b. The fifth lead 3093 is connected to the plurality of first electrodes 2051.

  More specifically, the second electrode 2052 corresponding to the horizontal direction of the same vertical column in each interval 206 (in FIG. 13, the second electrode 2052 corresponding to the first vertical column is denoted as RX1, The second electrode conductors 2053b in the directions of the second column to the fourth column are indicated as RX2 to RX4, respectively, and are connected in parallel by the third lead 3091 and the fourth lead 3092. As a result, the number of contacts of the second electrode conductor 2053b decreases.

  The second insulating portion 308 can be formed by the same step as the first insulating portion 208. Further, the second peripheral lead structure 309 can be formed by the same steps as the first peripheral lead structure 209.

As can be seen from the above, in the touch panel of the present invention, the first electrode conductor 2053a and the second electrode conductor 2053b of the second electrode 2052 in each interval 206 extend in the vertical direction, and the lower first One peripheral area 203a and an upper second peripheral area 203b are divided into the respective areas. Thereby, the width of the non-detection region A ′ formed for laying the first electrode conductor 2053a and the second electrode conductor 2053b in the interval 206 between the first electrode and the first electrode is reduced. Comparing the non-detection area A ′ of the present invention with the non-detection area A of the prior art shown in FIG. 1, the width of the non-detection area A ′ of the present invention is clearly reduced compared to the non-detection area A of the prior art. I understand that Thereby, since the array arrangement of the first electrode 2051 and the second electrode 2052 of the transparent conductive pattern 205 can be made dense on the entire substrate 201, the touch sensitivity and the linearity of the touch panel characteristics can be improved.
In addition, the first peripheral lead structure 209 and / or the second peripheral lead structure 309 and the first electrode conductor 2053a and / or the second electrode conductor 2053b of the second electrode 2052 in the same column within each interval 206 are provided. Are connected in parallel, the number of leads of the first peripheral lead structure 209 and the second peripheral lead structure 309 can be made smaller than the number of electrode conductors. Since the number of leads is reduced, the number of contact points of the leads is also reduced. Thereby, the dimension of a flexible circuit board can be reduced and the coupling failure rate of a contact and a flexible circuit board can be reduced. Compared with the prior art, in the present invention, since the first peripheral lead structure 209 and the second peripheral lead structure 309 are configured by silver paste, resistance when transmitting a signal can be reduced. . Accordingly, when a detection signal is transmitted from the first electrode lead wire 2053a and / or the second electrode lead wire 2053b to the first peripheral lead structure 209 and the second peripheral lead structure 309, the signal transmission speed is increased. Therefore, touch sensitivity can be increased.

  The above description does not limit the present invention, and those skilled in the art can make changes and modifications without departing from the spirit of the present invention. The scope of protection of the present invention conforms to the scope of the application for utility model registration.

100 Touch panel 101 Display area 103 Peripheral area 103a Upper area 103b Lower area 103c Right area 103d Left area 106 Peripheral lead 104 Conductive pattern 1041 First electrode 1042 Second electrode 10421 Electrode conductor 1043 Interval 200 Touch panel 201 Substrate 202 Display area 203a First peripheral region 203b Second peripheral region 203c Third peripheral region 203d Fourth peripheral region 204 Shielding layer 205 Transparent conductive pattern 2051 First electrode 2052 Second electrode 2053a First electrode conductor 2053b Second Electrode conductor 206 Distance 207 First parallel connection region 208 Insulating portion 209 First peripheral lead structure 2091 First lead 2092 Second lead 210 Second peripheral lead structure 2101 Third lead 307 Second parallel connection region 3 8 The second insulating section 309 second peripheral lead structures 3091 third lead 3092 fourth lead 3093 fifth lead A 'non-detection region

Claims (18)

A substrate, a shielding layer for shielding and concealing the outer periphery of the display area, a plurality of first electrodes and a plurality of second electrodes for detecting a touch operation, an electrode conductor connected to the electrode, and the electrode conductor and the lead are connected to each other A touch panel comprising at least one parallel connection region for,
The substrate has a display area and a peripheral area located outside the display area,
The shielding layer is located on the peripheral region;
The at least one parallel connection region is defined within the peripheral region;
The plurality of first electrodes and the plurality of second electrodes are provided in the display region,
The electrode conductor of each second electrode extends from the display area to the shielding layer in the parallel connection area and is covered with a plurality of insulating portions in the parallel connection area, respectively.
The lead is provided on the shielding layer in the peripheral region, bypasses the lead, and has a peripheral lead structure straddling the insulating part,
The touch panel, wherein the electrode lead wire is connected to the peripheral lead structure at a protruding end of the electrode lead wire that is not covered with the insulating portion.   The peripheral lead structure has a plurality of first leads and a plurality of second leads, and the plurality of first leads are connected to a part of the electrode conductors, and the plurality of second leads are The touch panel according to claim 1, wherein the touch panel is connected to the remaining electrode lead wires.   The touch panel as set forth in claim 1, wherein the part of the electrode conductors and the remaining electrode conductors extend in directions opposite to each other.   The touch panel according to claim 1, wherein an area occupied by the plurality of electrode conductive wires in the display area is a non-detection area.   The touch panel according to claim 1, wherein a transparent conductive pattern is formed by the plurality of first electrodes, the plurality of second electrodes, and the plurality of electrode conductive wires.   The peripheral area includes a first peripheral area, a second peripheral area, a third peripheral area, and a fourth peripheral area surrounding the display area, and the first peripheral area, the second peripheral area, 2 is located on the opposite side of the display region, and the third peripheral region and the fourth peripheral region are located on the opposite side of the display region. The touch panel described.   The touch panel according to claim 1, wherein the peripheral lead structure is made of a metal material, and the metal material is a silver paste, copper, or molybdenum-containing material. A touch panel comprising a substrate, a shielding layer, a transparent conductive pattern and at least one parallel connection region,
The substrate has a display area, and at least one first peripheral area and a second peripheral area respectively located on opposite sides of the display area;
The shielding layer is located on the first peripheral region and the second peripheral region;
The transparent conductive pattern is provided in the display area, and the transparent conductive pattern includes a plurality of first electrodes and a plurality of second electrodes that detect a touch operation, and the plurality of second electrodes includes: Each of the electrode conductors extends relative to the shielding layer in the first peripheral region, and the remaining electrode conductors are arranged to face the first electrode and have electrode conductors, respectively. Extending over the shielding layer in the second peripheral region,
The at least one parallel connection region is defined in at least one of the first peripheral region and the second peripheral region, and has a plurality of insulating portions and a peripheral lead structure. The touch panel is provided on an electrode conductor, and the peripheral lead structure is provided on the shielding layer, connected to the plurality of electrode conductors, and straddled over the plurality of insulating portions. A touch panel comprising a substrate, a shielding layer, a transparent conductive pattern, and a first parallel connection region,
The substrate has a display area, a first peripheral area, and a second peripheral area. The first peripheral area and the second peripheral area include a first side of the display area and a display area. Located on the second side opposite to the first side,
The shielding layer is provided on the first peripheral region and the second peripheral region,
The transparent conductive pattern is provided in the display area and includes a plurality of first electrodes for detecting a touch operation and a plurality of second electrodes opposed to the first electrodes, and the plurality of first electrodes are spaced apart from each other. A plurality of second electrodes are disposed within each of the first electrodes, and the plurality of second electrodes are disposed in each of the first electrodes.
The plurality of second electrodes in each of the intervals are divided into two, a first electrode conductor is connected to one of them, a second electrode conductor is connected to the remaining second electrode, and the plurality of second electrodes are connected to each other. A first electrode conductor extending to the shielding layer of the first peripheral region, the plurality of second electrode conductors extending to the shielding layer of the second peripheral region;
The first parallel connection region is defined in the first peripheral region, and has a plurality of first insulating portions and a first peripheral lead structure, and the first insulating portion includes the first insulating portion. The first peripheral lead structure is provided on the shielding layer, connected to the plurality of first electrode conductors, and straddled on the plurality of first insulating portions. A touch panel characterized by that.   The first peripheral lead structure has a plurality of first leads and a plurality of second leads, and the plurality of first leads are connected to a part of the first electrode conductors, The touch panel according to claim 9, wherein the second lead is connected to the remaining first electrode conductor.   The substrate includes a third peripheral region and a fourth peripheral region located on a third side of the display region and a fourth side opposite to the third side. 9. The touch panel according to 9.   The touch panel as set forth in claim 11, further comprising a shielding layer located on the first peripheral region, the second peripheral region, the third peripheral region, and the fourth peripheral region.   The plurality of first leads extend from the first peripheral region, bypass the display region, pass through the third peripheral region, reach the second peripheral region, and the plurality of second leads The touch panel according to claim 11, wherein the lead extends from the first peripheral region, bypasses the display region, passes through the fourth peripheral region, and reaches the second peripheral region.   A second parallel connection region defined in the second peripheral region, wherein the second parallel connection region has a plurality of second insulating portions and a second peripheral lead structure; The plurality of second insulating portions are provided on the second electrode conductor, and the second peripheral lead structure is provided on the shielding layer, connected to the plurality of second electrode conductors, The touch panel according to claim 10, wherein the touch panel is laid across a plurality of second insulating portions.   The second peripheral lead structure has a plurality of third leads, a plurality of fourth leads, and a plurality of fifth leads, and the plurality of third leads are a part of the second electrodes. The plurality of fourth leads are connected to a conductive wire, the plurality of fourth leads are connected to the remaining second electrode conductive wire, and the plurality of fifth leads are connected to the plurality of first electrodes. The touch panel according to claim 14.   The first peripheral lead structure and the second peripheral lead structure are made of a metal material, and the metal material is made of a material containing silver paste, copper, or molybdenum. Touch panel.   The touch panel according to claim 9, wherein the plurality of first electrode conductors and the plurality of second electrode conductors extend in directions opposite to each other.   The touch panel according to claim 9, wherein each interval occupied by the plurality of first electrode conductors and the plurality of second electrode conductors in the display area is a non-detection area.

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