KR20080102446A - Touch switch for display protection - Google Patents

Abstract

A touch switch for protecting a display for implementing the touch switch which has a touch function while protecting the display is provided to reduce a manufacturing cost and increase the transmittance of the light by directly forming a pattern for the touch on the transparent plate. A transparent film for anti-lacerative forms a touch sensor circuit through a method for printing or etching a transparent conduction material on an upper side. The transparent film for anti-lacerative includes durability such as a transparency acrylic board or a glass plate and is installed on the bottom surface of a transparent plate(1) installed on the upper side of a display(6). The transparent film for anti-lacerative is attached on upper side of a touch sensor circuit(3) of the transparent plate.

Description

Touch Switch for Display Protection {Touch Switch for Display Protection}

1A and 1B are longitudinal sectional views according to a first embodiment of the present invention touch switch.

2A and 2B are longitudinal sectional views according to a second embodiment of the present invention touch switch.

3 is a longitudinal cross-sectional view according to a third embodiment of the present invention touch switch.

4 is a longitudinal cross-sectional view according to a fourth embodiment of the present invention touch switch.

5A and 5B and 5C are cross-sectional views illustrating basic and modified examples according to a fifth embodiment of the present invention.

6 is a longitudinal cross-sectional view according to a sixth embodiment of the present invention touch switch.

7 is a longitudinal sectional view according to a seventh embodiment of the touch switch of the present invention;

8 is a state diagram attached to the terminal of the touch switch drive IC module connected to the display and connected to the terminal portion of the touch switch according to the present invention.

9 is a state in which the socket of the touch switch driving IC module connected to the display is detachably connected to the terminal portion of the touch switch according to the present invention.

10 is a state in which the socket of the display is detachably connected by integrally installing the touch switch driving IC module in the terminal portion collected as one side of the touch switch according to the present invention.

Explanation of symbols on the main parts of the drawings

1,1 ': transparent plate 2: transparent film for preventing scattering

3: touch sensor circuit 4: transparent film

5: front panel 6: display

7 Touch Switch Drive IC Module 31 Terminal

32: terminal 51: transparent part

61, 71: socket

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a touch switch for display protection, and more particularly, to a display protection transparent plate itself or a transparent film formed of acryl, glass, or the like, which is transparent by printing or etching a circuit pattern with a transparent conductive material. A touch switch is formed, and the transparent plate and the film are laminated to each other to be attached to the upper surface of various displays, and the function is provided as a switch area on the screen of the various displays, and the shape or position of the switch is displayed on the screen of the display. The present invention relates to a touch switch for display protection and combination, which is invented so that the touch switch driving IC determines the presence or absence of the touch when a human body or a material having a large dielectric constant is touched on the upper surface of the transparent plate and connects its output to a switch input unit. .

In general, in the case of a touch screen, a circuit pattern is printed or etched with a transparent conductive material on a transparent film on the upper surface of a transparent plate, and a space dot is added between the two films so that two films are formed. After laminating to separate, it is determined that the two films are in contact by pressing the upper film to detect the position information by using the pressed part as a key input.

  In addition, in the case of a capacitive touch screen, a touch circuit is attached to an upper surface of the transparent plate, and a structure including a dielectric thin film on the upper surface of the touch circuit.

In addition, in the case of a general touch switch, a capacitive pattern is printed directly on a film to be directly touched by a person, or PCB, FPCB. A switching circuit is formed on the back.

When the configuration is made as described above, the pattern portion is directly touched, and durability is remarkably decreased by using a film, and the overall switching is not made by configuring a switching circuit such as a PCB.

On the other hand, the structure of the four-wire pressure touch screen is composed of a film of the part to be touched, glass (or reinforced plastic) to support the film and spacer dots to maintain a space therebetween.

To explain how it works, there is a conductive coating called ITO on the inside of the film and glass, separated by space dots. If more than a certain pressure is applied to the film and glass, which has characteristics such as array resistance by the coating, the film and glass adhere between spaec dots, and the change of voltage applied to the film and glass is converted from analog to digital signal. The coordinates are searched for, and even if the finger is operated, the output voltage is constant, so there is no problem in recognizing the coordinates.

However, in the case of the touch screen as described above, using the film on the touch surface has a disadvantage in that durability is considerably lowered and manufacturing cost is high.

As described above, in the case of the conventional touch screen, since the first transparent film is positioned at the outermost side of the finished product, the film may be damaged by physical force, and the second two films may be in physical contact with each other, thereby causing damage to the touch pattern. By laminating the third film and the spacer dot, light transmittance is lowered.

Fourth, when constructing a touch product, the product appearance cannot be integrated, and in the fifth capacitive type, a manufacturing process that includes a dielectric thin film at the top of the touch circuit is added, and the light transmittance is increased by adding a dielectric thin film. There is a problem of being lowered.

In other words, the conventional touch screen mainly has the form of a pressure (resistive) touch screen and a capacitive touch screen. Among the resistive touch screens, the touch surface has the form of a film as well as between two films. It has a structure in which two films are physically separated by installing spacer tos, and when the two films are pressed together by touch, this point is recognized as a touch point, which makes the touch surface durable and difficult to manufacture a film stack. In the capacitive type, the resistance to resistive physical operation is improved, but also the film is located on the touch surface. To compensate for this, a dielectric thin film or the like is added to the touch circuit film to protect the touch circuit. Due to the difference in driving methods, only thin films such as dielectric thin films can be used.

The present invention has been made to solve such a conventional problem, to form a capacitive touch sensor circuit having an independent switching pattern having a constant area on the back of the transparent plate for display protection, and the above-mentioned capacitive touch The sensor circuit is connected to the input of the touch switch driving IC, the output is connected to the switch input, and the transparent plate itself is installed on the display surface of the display panel or the image display device, and the shape or position of the switch is displayed on the screen of the display. To protect the screen of the display with a transparent plate made of a solid material by touching the top of the transparent plate to enable the operation as a switch to provide a display protection combined touch switch that can also operate as a switch There is this.

In other words, an object of the present invention is to implement a touch switch capable of performing a touch function while protecting the display, and the touch switch function has no problem even if the touch surface is scratched or damaged, and only one sheet of film is attached to the transparent plate. Therefore, it is possible to increase the transmittance of light, to reduce the manufacturing steps and production costs by forming a touch pattern directly on the transparent plate, and to further increase the light transmittance by forming a pattern for touch directly on the transparent plate, Even if the transparent plate itself is a curved surface rather than a flat plate, there is no difficulty in attaching the touch switch driving IC module to the transparent film or the transparent plate directly on a chip on glass (COG) or a chip on film (COF). It is to provide a touch switch for display protection that can be mounted in the form of a) to improve the durability.

According to a first embodiment of the present invention for achieving the above object, in the construction of a touch switch for display protection, the transparent film for preventing scattering formed a touch sensor circuit through a method of printing or etching a transparent conductive material on one surface It is characterized in that it is attached to the bottom surface of the transparent plate provided with durability and installed on the upper surface of the display, such as a transparent acrylic plate or a glass plate.

At this time, the scattering prevention transparent film attached to the bottom of the transparent plate is characterized in that the touch sensor circuit formed on one surface thereof is installed so as to be in direct contact with any one of the bottom surface of the transparent plate or the upper surface of the display.

 According to a second embodiment of the present invention for achieving the above object, in the configuration of a touch switch for display protection, the transparent film for preventing scattering formed a touch sensor circuit through a method of printing or etching a transparent conductive material on one surface It is characterized in that it is attached to the upper surface of the transparent plate provided with durability and installed on the upper surface of the display, such as a transparent acrylic plate or a glass plate.

At this time, the scattering prevention transparent film attached to the upper surface of the transparent plate is installed so that the touch sensor circuit formed on one surface thereof is in direct contact with the upper surface of the transparent plate, or toward the upper portion so that the touch sensor circuit itself is exposed to the outside. It is characterized by the installation.

According to a third embodiment of the present invention for achieving the above object, in the construction of a touch switch for display protection, the transparent conductive material is provided on the upper surface of the transparent plate having durability such as a transparent acrylic plate or a glass plate and installed on the upper surface of the display. The touch sensor circuit is formed by a method of printing or etching a material, and a transparent film for preventing scattering is attached to an upper surface of the touch sensor circuit of the transparent plate.

In the fourth embodiment of the present invention for achieving the above object, in the construction of a touch switch for display protection, it has a durability, such as a transparent acrylic plate or a glass plate for preventing scattering on the bottom surface of the transparent plate installed on the upper surface of the display The transparent film is attached and installed, and a transparent film having a touch sensor circuit formed by attaching or printing a transparent conductive material on the upper surface is attached to the bottom surface of the transparent film for preventing scattering.

In the basic form of the fifth embodiment of the present invention for achieving the above object, in forming a touch switch for display protection, the transparent film on which the touch sensor circuit is formed through a method of printing or etching a transparent conductive material on the bottom It is characterized in that it is attached to the upper surface of the transparent plate provided with durability and installed on the upper surface of the display, such as an acrylic plate or a glass plate.

In the fifth embodiment, the bottom surface of the transparent plate is additionally attached to the anti-scattering transparent film, or another transparent plate is additionally attached to the upper surface of the transparent film.

In the sixth embodiment of the present invention for achieving the above object, in the construction of a touch switch for display protection and protection, the transparent surface provided with durability such as a transparent acrylic plate or a glass plate and installed on the upper surface of the display or The touch sensor circuit is formed by a method of printing or etching a transparent conductive material on a lower surface of another transparent plate, and the surface on which the touch sensor circuit is formed is attached or bonded to be placed in the middle of two transparent plates.

A seventh embodiment of the present invention for achieving the above object, in the display panel is formed so that only the position where the display is installed in the front panel to be attached to the front panel of the electronic device to form a display protection combined touch switch, the display The touch sensor circuit is formed by printing or etching a transparent conductive material on the upper surface of the transparent film cut to correspond to the size and shape of the transparent film, and is attached to the rear surface of the transparent part where the display is located in the front panel. .

In the above embodiments, all of the transparent film for preventing scattering and the touch sensor circuit formed on the transparent plate and the transparent film are gathered at one end to form a terminal portion, and the terminal portion is a touch switch driving IC connected to a display which is a liquid crystal or an image device. It is characterized in that the socket of the touch switch driving IC module connected via the terminal and the attachment of the module, or connected to the display which is a liquid crystal or warrant device.

In addition, if necessary, all of the transparent film for preventing scattering and the touch sensor circuits formed on the transparent plate and the transparent film are gathered at one end to form a terminal part, and at the end of the terminal part, a touch switch driving IC module and a liquid crystal or warrant device Characterized in that the terminal is formed integrally detachable to connect the socket of the display.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1A and 1B illustrate longitudinal cross-sectional views according to a first embodiment of a touch switch of the present invention, and FIGS. 2A and 2B illustrate longitudinal cross-sectional views of a second embodiment of a touch switch of the present invention, and FIG. A longitudinal cross-sectional view according to a third embodiment of the invention touch switch is shown, and FIG. 4 is a longitudinal cross-sectional view according to a fourth embodiment of the touch switch of the present invention, and FIGS. 5A, 5B, and 5C are views of the touch switch of the present invention. Basic and modified example longitudinal cross-sectional view according to the fifth embodiment is shown, Figure 6 is a longitudinal cross-sectional view according to the sixth embodiment of the touch switch of the present invention, Figure 7 is a seventh embodiment of the touch switch of the present invention A longitudinal cross section is shown.

8 shows a state diagram in which a terminal of a touch switch driving IC module connected to a display is attached to a terminal portion of a touch switch according to the present invention, and FIG. 9 is a touch connected to the display of a terminal portion of a touch switch according to the present invention. 10 is a view illustrating a state in which a socket of a switch driving IC module is detachably connected, and FIG. 10 is detachably connected to a socket of a display by integrally installing a touch switch driving IC module in a terminal part collected as one side of a touch switch according to the present invention. This is the state diagram.

Accordingly, one of the first embodiments of the present invention, in the configuration of the touch switch for display protection as shown in Figure 1a, by using a method of printing or etching the transparent conductive material on the upper surface of the touch sensor circuit (3) The formed shatterproof transparent film 2 is attached to the bottom surface of the transparent plate 1 having durability like a transparent acrylic plate or a glass plate and provided on the upper surface of the display 6.

In addition, in the first embodiment, as shown in FIG. 1B, the touch sensor circuit 3 is formed by printing or etching a transparent conductive material on a bottom surface of the touch switch for display protection. The scattering prevention transparent film 2 is characterized in that it is attached to the bottom surface of the transparent plate 1 having durability like a transparent acrylic plate or a glass plate and provided on the upper surface of the display 6.

In addition, one of the second embodiments of the present invention is to form a touch sensor circuit (3) through a method of printing or etching a transparent conductive material on the bottom in configuring a touch switch for display protection as shown in Figure 2a The scattering prevention transparent film 2 is characterized in that it is attached to the upper surface of the transparent plate 1 that is durable and is provided on the upper surface of the display 6 like a transparent acrylic plate or a glass plate.

In addition, in the second embodiment of the present invention, as shown in FIG. 2B, the touch sensor circuit 3 may be formed by printing or etching a transparent conductive material on the upper surface of the touch switch for display protection. The formed shatterproof transparent film 2 is attached to the upper surface of the transparent plate 1 having durability like a transparent acrylic plate or a glass plate and provided on the upper surface of the display 6.

Meanwhile, in the third embodiment of the present invention, as shown in FIG. 3, in the construction of a touch switch for display protection, a transparent plate having durability such as a transparent acrylic plate or a glass plate is installed on the upper surface of the display 6. The touch sensor circuit 3 is formed by printing or etching a transparent conductive material on the upper surface of (1), and the transparent film 2 for preventing scattering is formed on the upper surface of the touch sensor circuit 3 of the transparent plate 1. It is attached and installed.

In addition, in the fourth embodiment of the present invention, as shown in FIG. 4, in the construction of the touch switch for display protection, the transparent plate is provided on the upper surface of the display 6 and has durability, such as a transparent acrylic plate or a glass plate. The transparent film 4 having the touch sensor circuit 3 formed thereon is formed by attaching and installing the transparent film 2 for preventing scattering on the bottom surface of the substrate 1 and printing or etching a transparent conductive material on the upper surface. It is characterized by being attached to the bottom of the film (2).

In addition, the basic type of the fifth embodiment of the present invention, as shown in Figure 5a, in configuring the touch switch for display protection, the touch sensor circuit (3) through the method of printing or etching the transparent conductive material on the bottom The formed transparent film 4 is attached and attached to the upper surface of the transparent plate 1 provided with the durability like a transparent acrylic plate or a glass plate and provided in the upper surface of the display 6.

As shown in FIG. 5B, in Modification Example 1 of FIG. 5B, the touch sensor circuit 3 is formed by printing or etching a transparent conductive material on a bottom surface of the touch switch for display protection. The transparent film 4 is attached to the upper surface of the transparent plate 1 having durability, such as a transparent acrylic plate or a glass plate, and installed on the upper surface of the display 6, and on the bottom of the transparent plate 1 transparent to prevent scattering The film 2 is additionally attached and installed.

In addition, in the fifth embodiment, as shown in FIG. 5C, the touch sensor circuit 3 is formed by printing or etching a transparent conductive material on a bottom surface of the touch switch for display protection. One transparent film 4 is attached to the upper surface of the transparent plate 1 which is durable and is installed on the upper surface of the display 6, such as a transparent acrylic plate or a glass plate, and another transparent film 4 is attached to the upper surface of the transparent film 4. It is characterized by additionally attaching and installing the transparent plate 1 '.

In addition, according to the sixth embodiment of the present invention, as shown in FIG. 6, in the construction of the touch switch for display protection, the transparent plate is provided on the upper surface of the display 6 and has durability, such as a transparent acrylic plate or a glass plate. The touch sensor circuit 3 is formed by printing or etching a transparent conductive material on the upper surface of (1) or the lower surface of another transparent plate 1 ', and the surface on which the touch sensor circuit 3 is formed is intermediate. It is characterized in that the two transparent plates (1, 1 ') are attached to each other or bonded to each other so as to be located in the part.

In addition, as shown in FIG. 7, the seventh embodiment of the present invention is formed so that only the position at which the display 6 is installed is transparent and is attached to the front panel 5 attached to the front panel of the electronic device. In forming the switch, the touch sensor circuit 3 is formed by printing or etching a transparent conductive material on the upper surface of the transparent film 4 cut to correspond to the size and shape of the display 6. It is characterized in that the front panel 5 is attached to the back of the transparent portion 51 where the display 6 is located.

One of the methods for interconnecting the touch switch driver IC module connected to the touch switch and the display in the first to seventh embodiments is illustrated in FIG. 8, wherein the transparent film 2 for preventing scattering and the transparent plate ( 1, 1 ') and each of the touch sensor circuits 3 formed on any one of the transparent film 4 are gathered at one end to form a terminal portion 31, and the terminal portion 31 is a display which is a liquid crystal or a warrant device. The socket of the touch switch driver IC module 7 connected to the terminal of the touch switch driver IC module 7 connected to the terminal 6 by attachment or to the display 6 which is a liquid crystal or warrant device as shown in FIG. 9. ) And detachably connected.

If necessary, as shown in FIG. 10, all of the touch sensor circuits 3 formed on any one of the transparent film 2 for preventing scattering, the transparent plates 1, 1 ′, and the transparent film 4 may be formed at one end. The terminal portion 31 is formed, and the terminal 32 which can detachably connect the touch switch driving IC module 7 and the socket 61 of the display 6 which is a liquid crystal or an image device to an end of the terminal portion 31. ) Is formed integrally.

Referring to the operation and effect of the touch switch of the present invention configured as described above are as follows.

First, in one of the first embodiments of the present invention, the transparent film 2 for preventing scattering, in which the touch sensor circuit 3 is formed through a method of printing or etching a transparent conductive material on an upper surface thereof, such as a transparent acrylic plate or a glass plate. The durability of the transparent switch itself and the touch sensor circuit 3 itself become very good by providing the durability and attaching the bottom surface of the transparent plate 1 installed on the upper surface of the display 6.

In another one of the first embodiments, the scattering-proof transparent film 2 having the touch sensor circuit 3 formed thereon by a method of printing or etching a transparent conductive material on the bottom thereof is formed to have durability such as a transparent acrylic plate or a glass plate. It is provided and attached to the bottom surface of the transparent plate 1 provided on the upper surface of the display 6, the durability of the transparent switch itself is not significantly different from the above-described embodiment, the touch sensor circuit 3 is the display 6 Since the touch sensor circuit 3 itself may be degraded as compared with the above-described embodiment because it is exposed in the direction, it is preferable to further apply a pattern protection material to the touch sensor circuit 3 as necessary. .

In addition, in one of the second embodiments, the scattering prevention transparent film 2 having the touch sensor circuit 3 formed thereon by a method of printing or etching a transparent conductive material on the bottom thereof has durability such as a transparent acrylic plate or a glass plate. And by attaching to the upper surface of the transparent plate 1 installed on the upper surface of the display 6, the transparent plate 1 is not separated from the display 6 and is integral with the display 6, or the touch sensitivity can be increased. If many switches are needed, other transparent plates other than the thin film or the thickness of the dielectric thin film, which are limited to the conventional capacitive type, can be applied as a method for use.

In another one of the second embodiments, the scattering prevention transparent film 2 having the touch sensor circuit 3 formed thereon by a method of printing or etching a transparent conductive material on an upper surface thereof is formed to have durability such as a transparent acrylic plate or a glass plate. It is provided and attached to the upper surface of the transparent plate 1 provided on the upper surface of the display 6 can have the same effect as the previous case, while in manufacturing, the moment when the pattern of the touch sensor circuit 31 is exposed to the top This has some drawbacks, but there is no problem with the configuration.

Meanwhile, in the third embodiment, the touch sensor circuit may be formed through a method of printing or etching a transparent conductive material on the upper surface of the transparent plate 1 provided on the upper surface of the display 6 having durability such as a transparent acrylic plate or a glass plate. 3) and the transparent film 2 for preventing scattering is attached to the upper surface of the touch sensor circuit 3 of the transparent plate 1, and when the pattern of the touch sensor circuit 3 is arranged in the form of a film. This disadvantage can be reduced by placing the touch sensor circuit 3 pattern directly on the transparent plate 1 in order to prevent pattern damage such as bending or folding of the film when handling the film in the manufacturing process.

In addition, in the fourth embodiment, the transparent film 2 for preventing scattering is attached to the bottom of the transparent plate 1 which is durable and is installed on the upper surface of the display 6, like the transparent acrylic plate or the glass plate, and is transparent on the upper surface. The transparent film 4 having the touch sensor circuit 3 formed thereon is attached to the bottom of the transparent film 2 to prevent scattering by printing or etching a conductive material. It is a method for using when the circuit 3 is difficult to arrange | position, or when the transparent film 2 for scattering prevention must be laminated | stacked and manufactured at the time of manufacture of the transparent plate 1. FIG.

In addition, in the fifth embodiment, the transparent film 4 having the touch sensor circuit 3 formed thereon by a method of printing or etching a transparent conductive material on the bottom thereof has a durability such as a transparent acrylic plate or a glass plate and has a display 6. On the basis of being attached to the upper surface of the transparent plate (1) to be installed on the upper surface of the), if necessary, further attached to the bottom surface of the transparent plate (1) for preventing scattering, or touch the bottom Another transparent plate 1 'is further attached to the upper surface of the transparent film 4 having the sensor circuit 3 and attached to the upper surface of the transparent plate 1, which is also a transparent film for preventing scattering. It is difficult to arrange the touch sensor circuit 3 in (2), or the transparent plate 1 is displayed as a method for use when the transparent film 2 for scattering prevention must be laminated and manufactured in the manufacture of the transparent plate 1. (6) integrated with or higher touch sensitivity This can be used when more switches are needed in the same space.

In the sixth embodiment, the touch sensor is provided on the upper surface of the transparent plate 1 provided on the upper surface of the display 6 or on the lower surface of another transparent plate 1 ′, which is durable, such as a transparent acrylic plate or a glass plate. A circuit 3 is formed, and two transparent plates 1 and 1 'are attached or bonded to each other so that the surface on which the touch sensor circuit 3 is formed is positioned at an intermediate portion thereof. When the pattern is arranged in the form of a film, the touch sensor circuit 3 pattern is bonded to each other among the two transparent plates 1 and 1 'in order to prevent pattern damage such as bending or folding of the film when the film is handled in the manufacturing process. This disadvantage can be reduced by placing directly on either side.

Meanwhile, in the seventh embodiment, unlike the above-described examples using the transparent plate 1 having a shape corresponding to the size and shape of the display 6, only the position where the display 6 is installed is formed to be transparent so that the front of the electronic device is transparent. The touch switch for display protection is formed on the front panel 5 attached to the unit, and a transparent conductive material is printed or etched on the upper surface of the transparent film 4 cut to correspond to the size and shape of the display 6. By forming a touch sensor circuit (3) through the method to attach to the back of the transparent portion 51 in which the display 6 is located in the front panel (5), which is not used separately the transparent plate (1) It is a method used when the display 6 is mounted on the back of the front panel 5 installed on the front of the various electronic devices or when the distance between the front panel 5 and the display 6 is dropped. To attach the touch sensor circuit 3 to the plate (1) as a method for attaching a front panel, a back (5).

In this case, the transparent film 2 for preventing scattering has a function of reinforcing the transparent plate 1 to prevent the transparent plate 1 from being broken by an external pressure or the like. In addition to preventing scattering when the user performs a function that allows the user to smoothly see the various information displayed on the display 6, the transparent film 4 is simply a user to see the various information displayed on the display 6 smoothly To do so.

The touch switches having such a configuration are connected to the touch switch driving IC module 7 having a state in which the touch switches are connected to the display 6 when installed in the front part of the display 6, which is a liquid crystal or an image device installed in various electronic devices. Should be done.

As described above, various types of methods for interconnecting the touch switches and the touch switch driving IC module 7 connected to the display 6, which is a liquid crystal or an image device, may be provided. As shown in FIG. 8, all of the touch sensor circuits 3 formed on any one of the scattering prevention transparent film 2, the transparent plates 1, 1 ′, and the transparent film 4 are collected at one end, respectively. 31 is formed, and the terminal part 31 is connected to the terminal of the touch switch driving IC module 7 connected to the display 6, which is a liquid crystal or an image device, by using an ACF or a conductive adhesive. .

In another method, as shown in FIG. 9, the scattering preventing film 2, the transparent plates 1, 1 ', and the touch sensor circuits 3 formed on any one of the transparent film 4 are collected at one end, respectively. A terminal portion 31 is formed in a protruding shape, and the terminal portion 31 is easily detached and connected to a socket 71 installed in a touch switch driving IC module 7 connected to a display 6, which is a liquid crystal or an image device. That's the way.

If necessary, as shown in FIG. 10, all of the touch sensor circuits 3 formed on any one of the transparent film 2 for preventing scattering, the transparent plates 1, 1 ′, and the transparent film 4 may be formed at one end. The terminal unit 31 is formed together, and the terminal unit 31 can be detachably connected to the end of the terminal unit 31 through the touch switch driving IC module 7 and the socket 61 installed in the display 6 which is a liquid crystal or an image device. In this manner, the terminal 32 is integrally formed, such that the touch switch driver IC module 7 and the components are arranged together with the touch sensor circuit 3 to reduce the length of the touch sensor circuit pattern, thereby making it more stable. In particular, by integrating, it is possible to implement a stable display protection touch switch.

In other words, the present invention is an independent switching pattern having a predetermined area on the rear surface of the front panel (5) which is formed to be transparent only the position where the display protective plate (1) or display (6) is installed to be attached to the front of the electronic device A capacitive touch sensor circuit having a capacitive touch sensor circuit, wherein the static capacitive touch sensor circuit is connected to an input of a touch switch driving IC module 7 and its output is connected to a switch input of a display panel or an image device. It is attached to the display surface, and the switch shape or position is displayed on the screen of the display 6 so as to operate as a switch by touching the upper surface of the transparent portion of the transparent plate 1 or the front panel 5.

Accordingly, a display protection touch switch capable of operating as a switch while protecting the screen of the display 6 can be implemented by the transparent plate 1 or the front panel 5 of a solid material.

In addition, in the case of a capacitive touch screen, the present invention has only two or three layers of a film in which the liquid crystal protective transparent plate 1 or the front panel 5 and the touch sensor circuit 3 are laminated, whereas conventionally, a dielectric It is a structure having three layers of a support layer (similar to a display protective transparent plate), a circuit laminated film, and a dielectric thin film. The difference between the present invention is that, as shown in a circuit laminated on a film, an individual key has a constant area. The branch has an independent switching scheme, but conventionally has a matrix structure in which a circuit is connected at both ends in the form of bars to implement a plurality of keys in a row of bars.

The capacitive sensing method includes a method for individual operation as described in the present invention and a method for constructing a large number of keys by implementing a matrix, and the design method is also different in the touch switch driving IC module 7.

That is, the touch switch driving IC module 7 used in the present invention is not applicable to and operated in the conventional structure, and the touch switch operation of the present invention is not possible in the conventional touch driver.

In other words, if each key is composed of one independent switch as in the present invention, one key having an area of 8 mm in width X length is directly on the back of a 5 mm thick glass plate or a 3 mm thick acrylic plate. Alternatively, switching is also performed by coating and forming a circuit through the film and touching the opposite surface.

This is because it is an independent key having a constant area, and the larger this area is, the thicker the thickness of the transparent plate 1 can be. The dielectric constant is proportional to the dielectric constant and area of each material and inversely proportional to the thickness. Do.

On the other hand, when the matrix is implemented, since the individual keys do not have their respective areas, the sensitivity is significantly reduced, and thus the transparent display plate for protecting the display (the purpose of preventing damage to the liquid crystal due to external impact, as shown in the present invention, which must have a certain strength) Therefore, when the touch sensor circuit 3 is attached to the back of the thin film or film, the microcapacitance of the human body cannot be passed, and thus, it is necessary to arrange it in front of the transparent plate for display protection. Since it is thin, the circuit is damaged when exposed to the outside, so that the dielectric thin film is stacked on the upper surface again to prevent the circuit from being damaged.

In the present invention, a small number of keys (less than tens) may be configured in the same area, and in the case of a conventional touch screen, a large number of keys (hundreds or more) may be configured. In a structure having a transparent protective plate for display protection, which has a large number of keys and has a thickness greater than a certain thickness, such as a liquid crystal protective plate, it can be made with excellent durability and characteristics and a simple manufacturing method.

In addition, in forming the capacitive touch sensor circuit, a transparent conductive material may be formed on the transparent film by printing or etching, but may be disposed directly on the protective transparent plate 1 without using the film. It is possible to eliminate the manufacturing step of the light transmittance can be further improved.

In addition, the position of the touch switch driving IC module 7 may be connected in the form of a module when it is connected to the transparent film 2 for preventing scattering, the general transparent film 4 or the transparent plate 1, and the touch switch driving IC module 7 ) Is mounted on the transparent film (2) for preventing scattering, the general transparent film (4), or the transparent plate (1) by using a method such as COG or COF, thereby reducing the length of the touch sensor circuit (3) pattern for more stability in operation. Bringing together, the unity is increased, so durability can be increased.

In the case of small products, it is difficult to secure a mounting space, so that the transparent switch 2 for preventing scattering, in which the touch switch driver IC module 7 is mounted on the same board as the display 6 and the touch sensor circuit 3 pattern is formed. Alternatively, the connection portion of the general transparent film 4 or the transparent plate 1 may be connected to the input portion of the touch switch driving IC module 7.

Although the above-described embodiments have been described with respect to the most preferred embodiments of the present invention, it is not limited to the above embodiments, and it will be apparent to those skilled in the art that various modifications can be made without departing from the technical spirit of the present invention.

As described above, according to the present invention, the first touch switch can be implemented while protecting the display, and the second touch surface has no problem even if the touch surface is scratched or damaged, and the third film is transparent Since only one sheet is attached to the plate, the transmittance of light can be increased. Fourth, the pattern for touch can be directly formed on the transparent plate to reduce manufacturing steps and production costs. The transmittance can be further increased, and the sixth transparent plate itself is not difficult to attach even if it is a curved surface rather than a flat plate. The touch switch driving IC module is installed in the form of COG or COF directly on the transparent film or transparent plate for durability. It is a very useful invention such that it can greatly improve.

Claims (14)

In configuring the display protection combined touch switch, A transparent film for preventing scattering, in which a touch sensor circuit is formed through a method of printing or etching a transparent conductive material on the upper surface, is attached to the bottom of the transparent plate which is durable and is installed on the upper surface of the display, such as a transparent acrylic plate or a glass plate. Display protection combined use touch switch, characterized in that. In configuring the display protection combined touch switch, A transparent film for preventing scattering, in which a touch sensor circuit is formed through a method of printing or etching a transparent conductive material on a bottom surface, is attached to a bottom surface of a transparent plate which is durable like a transparent acrylic plate or a glass plate and installed on the upper surface of the display. Display protection combined use touch switch, characterized in that. In configuring the display protection combined touch switch, A transparent film for preventing scattering, in which a touch sensor circuit is formed through a method of printing or etching a transparent conductive material on a bottom surface, is attached to an upper surface of a transparent plate which is durable like a transparent acrylic plate or a glass plate and installed on the upper surface of the display. Touch switch for display protection, characterized in that. In configuring the display protection combined touch switch, A transparent film for preventing scattering, in which a touch sensor circuit is formed through a method of printing or etching a transparent conductive material on the upper surface, is attached to the upper surface of the transparent plate which is durable like the transparent acrylic plate or glass plate and installed on the upper surface of the display. Display protection combined use touch switch, characterized in that. In configuring the display protection combined touch switch, A touch sensor circuit is formed by printing or etching a transparent conductive material on the upper surface of the transparent plate which is durable and is installed on the upper surface of the display, such as a transparent acrylic plate or a glass plate, and is scattered on the upper surface of the touch sensor circuit of the transparent plate. Display protection combined use touch switch characterized in that the anti-transparent film is attached. In configuring the display protection combined touch switch, The touch sensor circuit may be formed by attaching a transparent film for preventing scattering to the bottom of the transparent plate, which is durable, such as a transparent acrylic plate or a glass plate, and is printed or etched on the upper surface. The formed transparent film was attached to the bottom of the said transparent film for scattering prevention, The display protection combined touch switch characterized by the above-mentioned. In configuring the display protection combined touch switch, The transparent film formed by forming a touch sensor circuit through a method of printing or etching a transparent conductive material on the bottom surface is attached to the upper surface of the transparent plate which is durable like the transparent acrylic plate or the glass plate and is installed on the upper surface of the display. Display protection combined use touch switch. The method according to claim 7, The touch switch for combined display protection, characterized in that the bottom surface of the transparent plate further attached to the anti-scattering transparent film. The method according to claim 7, A display switch for combined touch protection, characterized in that another transparent plate is further attached to the upper surface of the transparent film. In configuring the display protection combined touch switch, The touch sensor circuit is formed through a method of printing or etching a transparent conductive material on the upper surface of the transparent plate or the lower surface of another transparent plate which is durable and is installed on the upper surface of the display, such as a transparent acrylic plate or a glass plate, and the touch sensor A touch switch for combined display protection, characterized in that two transparent plates are attached or bonded to each other such that a circuit formed surface is positioned at an intermediate portion. In forming the display switch and the touch switch for the display protection on the front panel to be attached to the front of the electronic device by forming only the position where the display is installed, Forming a touch sensor circuit through a method of printing or etching a transparent conductive material on the upper surface of the transparent film cut to correspond to the size and shape of the display, characterized in that attached to the back of the transparent portion in which the display is located among the front panel Display protection combined use touch switch. The method according to any one of claims 1 to 11, Both the transparent film for preventing scattering and the touch sensor circuit selectively formed on the transparent plate and the transparent film are gathered at one end, respectively, to form a terminal part, and the terminal part is connected to the terminal of the touch switch driving IC module connected to the display through attachment. Display protection combined use touch switch, characterized in that. The method according to any one of claims 1 to 11, Each of the transparent film for preventing scattering and the touch sensor circuit selectively formed on the transparent plate and the transparent film are formed at the ends to form a terminal part, and each terminal part is formed to protrude, and the terminal part is provided in a touch switch driving IC module connected to the display. Touch switch for combined display protection, characterized in that to be connected to and detachable. The method according to any one of claims 1 to 11, Each of the transparent film for preventing scattering and the touch sensor circuit selectively formed on the transparent plate and the transparent film are gathered at one end to form a terminal part, and the terminal part is detachable through a touch switch driving IC module and a socket installed in the display. A display protection combined touch switch, characterized in that the terminal which can be connected integrally formed.

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