JP3157059U - Touch panel decorative frame - Google Patents

Abstract

Provided is a touch panel decorative frame in which a decorative layer of a peripheral frame surface is installed on a touch panel surface layer, and a signal transmission line installed on the periphery of the touch panel is beautified and protected. A touch panel decorative frame is provided with a touch sensor 5 in an insulated state between a flexible apex plate 1 and a substrate 2, and a detection signal on the touch sensor 5 is a signal transmission path 53 installed on a side. 56, the vertex plate 1, the substrate 2, and the touch sensor 5 are all substantially transparent thin films, and a substantially opaque thin film is formed on the peripheral surface of the top surface of the vertex plate 1. The color peripheral frame 3 is installed, thereby shielding the signal transmission lines 53 and 56 on the edge of the touch sensor 5, and the color peripheral frame 3 is made of organic material or inorganic material for printing, coating, metal It can be installed on the top surface of the apex plate 1 by technical means such as vapor deposition, and the color peripheral frame 3 can be installed on the thin film substrate in advance, and the thin film substrate can be adhered and covered on the top surface of the apex plate 1. . [Selection] Figure 2

Description

  The present invention relates to a touch panel decorative frame, and more particularly to a touch panel decorative frame in which a decorative layer of a peripheral frame surface is installed on a touch panel surface layer, and a signal transmission line installed on the periphery of the touch panel is beautified and protected.

Touch panels are widely applied to consumer electronic products such as mobile phones, digital cameras, and GPS, and can improve user interfaces and input efficiency. Usually, the touch panel is transparent and is disposed and used on the front surface of the electronic product described above. Thus, the user can perform an interactive input operation according to the instruction message on the screen, and can greatly improve the affinity between the human and the device.
In a typical touch panel structure, a touch sensor is installed in an insulated state between a vertex plate and a substrate. Furthermore, a signal conducting wire is installed at the peripheral portion of the above-described stacked plate, and a signal on the touch sensor is transmitted to the signal processing circuit. Many of the assembly methods of the touch panel and the screen in the early days use a cover frame to hold the four peripheral edges of the touch panel, whereby the touch panel is fixed in front of the screen. In addition to the purpose of fixing the panel, the cover frame also has a function of protecting the circuit around the touch panel and beautifying the installation structure.

However, this type of conventional touch panel assembly structure often has many drawbacks. For example, by installing a cover frame, a surface having a non-constant height is formed on the body case, and the smoothness of the product design is destroyed. Moreover, when cleaning the plate surface inside the frame, dust and dirt can easily enter the gap between the cover frame and the touch panel. Accumulating the touch panel may cause malfunction of the touch panel. Further, since the signal conductor structure of the peripheral part of the touch panel is usually relatively fragile, if it is pressed by dust or dirt, it is likely to be damaged and easily cause a phenomenon of signal transmission failure. In addition, dust and dirt that enter the gap between the frame edges adversely affects the tightness between the outer shell and the touch panel, reducing the waterproof and dustproof effects. In severe cases, damage to internal electronic components can occur. May even invite.
In order to improve the above-described drawbacks, a system is adopted in which a thin color frame is installed between the apex plate and the substrate and the signal conductors at the peripheral portion are completely shielded. Thereby, the objective of ensuring the smoothness of a touch panel and protecting the circuit | line around a touch panel can be achieved. However, since the thickness of the above-described conventional thin color frame layer is at least 50 microns or more, when adhesively bonding between the apex plate and the substrate, an adhesive is present near the edge of the thin color frame layer edge. When the situation of overflowing or remaining bubbles occurs, the optical characteristics are impaired and the aesthetics are destroyed.

  The purpose of the present invention is to install a surface cover layer on the top surface of the touch panel to install a color peripheral frame at the peripheral part, simplify the bonding procedure, improve the yield, and bond that occurred on the panel edge. It is an object of the present invention to provide a decorative frame for a touch panel that can eliminate the drawbacks of overflowing agents or remaining bubbles and improve the optical characteristics and smooth aesthetics of the touch panel.

In order to solve the above problems, the present invention provides the following decorative frame for a touch panel.
The touch frame decoration frame is installed with the touch sensor insulated between the flexible apex plate and the substrate.
The sensing signal on the touch sensor is transmitted to the signal processing circuit through a signal transmission path installed on the side edge,
Moreover, the apex plate and the substrate are substantially transparent thin films,
A color peripheral frame, which is a substantially opaque thin film, is installed on the peripheral surface of the top surface of the apex plate, thereby shielding the signal transmission path portion on the edge of the touch sensor,
The component of the color peripheral frame is an organic material such as ink or color photoresist, or an inorganic material, but the implementation material is not limited to this,
The organic material or inorganic material is installed on the top surface peripheral portion of the top plate by technical means such as printing, coating, metal deposition, etc., but the implementation material is not limited to this,
The color peripheral frame is an opaque or nearly opaque thin film formed using an organic material, and the thickness of the thin film is 35 microns or less.
The color peripheral frame is an opaque or nearly opaque thin film formed using an inorganic material, and the thickness of the thin film is 15 microns or less.
The collar peripheral frame may be preliminarily installed on the thin film base material, and the thin film base material may be adhered to and covered with the upper surface of the apex plate. The thin film substrate formed in a part is a plane thin film made of a substantially transparent material, such as polycarbonate (PC), polyester terephthalate (PET), polymethyl methacrylate (PMMA), or cyclic olefin copolymer (COC). However, the implementation material is not limited to this.

  The decorative frame of the touch panel of the present invention can be provided with a decorative layer of a peripheral frame surface on the touch panel surface layer, and can beautify and protect a signal transmission line installed on the periphery of the touch panel.

It is a three-dimensional view of the first embodiment of the present invention. It is a three-dimensional exploded view of the components of the first embodiment of the present invention. It is a fragmentary sectional view of the state which combined the component of 1st Example of this invention. It is a fragmentary sectional view of the state which combined the component of 2nd Example of this invention.

  As shown in FIG. 1, the present invention uses an electric resistance type touch panel as an example. The electrical resistance touch sensor 5 is installed in an insulated state between the apex plate 1 and the substrate 2. The electric resistance touch sensor 5 can be input by touching it with a user's finger or pen tip, etc., generates a voltage at the moment of contact, and detects a change in the voltage value. The touched position can be determined.

The substrate 2 is a transparent thin plate such as a glass plate, and a lower electric resistance film 51 of the electric resistance touch sensor 5 is installed on the upper surface of the substrate 2. In the area area included in the electric resistance film 51, a large number of convex isolation parts 52 are laid uniformly. At the four peripheral edges of the electric resistance film 51, signal transmission paths 53 for sensing signals are installed. Further, an adhesive is applied along the signal transmission path 53 to form a sealed adhesive frame 54 (a range outside the dotted line on the substrate 2 shown in FIG. 2).
The apex plate 1 is a flexible transparent thin film such as polycarbonate (PC), and an upper electric resistance film 55 of the electric resistance touch sensor 5 is installed on the bottom surface of the apex plate 1. A signal transmission path 56 for transmitting a signal of the electrical resistance touch sensor 5 is installed on the side of the electrical resistance film 55.
When the panels are combined, the apex plate 1 and the substrate 2 are pressed and bonded along the adhesive frame 54. Thus, the upper and lower electric resistance films 55 and 51 are arranged to face each other with a certain gap therebetween.

On the top surface of the apex plate 1, a color peripheral frame 3 is installed at the peripheral portion. The color peripheral frame 3 can shield the signal transmission lines 53 and 56 at the edge of the touch sensor, thereby achieving the purpose of beautifying the panel appearance. As shown in FIG. 3, the collar peripheral frame 3 uses an inorganic material such as silver metal and is directly installed on the peripheral portion of the top surface of the apex plate 1 by a metal vapor deposition technique. The color peripheral frame 3 is an opaque thin film or a thin film that is nearly opaque with a thickness of about 15 microns or less. The color peripheral frame 3 can also be installed by using an organic material such as ink or a color photoresist and using printing or various application technical means. In this case, the thickness of the color peripheral frame 3 is about 35 microns or less.
Further, as shown in FIG. 4, the collar peripheral frame 3 can be installed in advance on the thin film substrate 31, and the thin film substrate 31 can be adhered and covered on the upper surface of the vertex plate 1. Thereby, the color peripheral frame 3 can just block the signal transmission paths 53 and 56 of the touch sensor.

  When the touch panel composed of the above-described components is compared with a conventional touch panel, the color peripheral frame 3 of the present invention is formed directly on the peripheral portion of the top surface of the apex plate 1, so that it is easily bonded to the panel edge. It is possible to prevent the overflow of the agent or the problem of remaining bubbles. Thus, the yield of the product can be improved, and the optical characteristics and surface smoothness of the touch panel product can be improved.

DESCRIPTION OF SYMBOLS 1 Vertex board 2 Board | substrate 3 Color peripheral frame 31 Thin film base material 5 Electrical resistance type touch sensor 51 Electrical resistance film 52 Convex isolation part 53 Signal transmission path 54 Adhesive frame 55 Electrical resistance film 56 Signal transmission path

Claims (4)

Install the touch sensor in an insulated state between the flexible apex plate and the substrate,
The sensing signal on the touch sensor is transmitted to the signal processing circuit through a signal transmission path installed on the side,
In addition, the vertex plate, the substrate and the touch sensor are all substantially transparent thin films, and a color peripheral frame which is a substantially opaque thin film is installed on the peripheral surface of the top surface of the vertex plate. A touch panel decoration frame, characterized in that the signal transmission path portion on the edge of the touch sensor is shielded.   2. The touch panel decorative frame according to claim 1, wherein the color peripheral frame is a substantially opaque thin film formed of an inorganic material and having a thickness of 15 microns or less.   2. The touch panel decorative frame according to claim 1, wherein the color peripheral frame is a substantially opaque thin film having a thickness of 35 microns or less formed of an organic material.   2. The touch panel decorative frame according to claim 1, wherein the touch panel decorative frame is further provided by previously setting the color peripheral frame on a thin film base material and bonding the thin film base material onto the top surface of the apex plate. A decorative frame for a touch panel, which can also be used.

Images