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Touch panel and method of its manufacturing

A touch panel and panel technology, applied in chemical instruments and methods, other household appliances, electronic equipment, etc., can solve problems such as low adhesion, peeling, and limitation of the freedom of film shape.

Inactive Publication Date: 2016-11-02
HOSIDEN CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the adhesive force of the adhesive tape is generally weaker than that of the adhesive, there is a possibility that each film may be peeled off from the adhesive tape at, for example, a three-dimensional molded part with large undulations.
Therefore, the degree of freedom of the shape of the laminated film in the touch panel is limited

Method used

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  • Touch panel and method of its manufacturing
  • Touch panel and method of its manufacturing
  • Touch panel and method of its manufacturing

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0026] Such as Figure 1~Figure 3 As shown, the touch panel 20 is formed by laminating a multilayer film 10 on the front surface of a panel member 11 . The panel member 11 and the multilayer film 10 together form a three-dimensional shape. In this embodiment, the front surface of the touch panel 20 is formed in a three-dimensional curved shape. An opening 12 serving as an operation screen of the touch panel 20 is formed in the center of the panel member 11 .

[0027] Such as figure 1 As shown, the multilayer film 10 is formed by sequentially stacking conductive films 1 and 2 with conductive layers 1a and 2a, an adhesive layer 6, and a decorative film 3 with a decorative layer 3a. On the front side of the decorative film 3 ( figure 1 On the upper side of ), a protective film 4 having a protective layer 4 a is further laminated via an adhesive layer 7 .

[0028] The first conductive film 1 and the second conductive film 2 each include a first conductive layer 1 a and a seco...

no. 2 approach

[0052] In the second embodiment, as Figure 10~Figure 11 As shown, the touch panel 21 is formed by laminating the multilayer film 10 over the entire front surface of the panel member 11 having no opening. The panel member 11 and the multilayer film 10 together form a three-dimensional shape. The panel member 11 is made of a transparent resin such as polycarbonate, and has substantially the same shape as the multilayer film 10 . exist Figure 10 In the multilayer film 10 shown, the decorative layer 3a is not formed in the translucent region 15 where the operation screen is formed. replace Figure 10 Alternatively, the decorative layer 3 a may be formed on a part of the translucent region 15 in the multilayer film 10 . The touch panel 21 can be manufactured by the same manufacturing method as that of the first embodiment.

[0053] By laminating the multilayer film 10 and the panel member 11 in the same shape in this way, stable strength meeting the specifications can be ens...

Embodiment approach

[0055] (1) Figure 12 A touch panel 22 of another embodiment is shown. In this touch panel 22, the front surface is formed in a three-dimensional curved surface shape, and the left and right end portions 13 are folded back so as to form approximately right angles. In addition, on the front side of the touch panel 22 , a partition 14 that can be pressed is provided. The partition portion 14 may also be provided on the touch panel 20 of the first embodiment or the touch panel 21 of the second embodiment.

[0056] (2) In each of the above-mentioned embodiments, the multilayer film 10 includes the conductive films 1 and 2 , the decorative film 3 , and the protective film 4 , but the multilayer film 10 may not include the protective film 4 . In this case, the outermost layer of the multilayer film 10 is the decorative film 3, so the decorative film 3 is also used as a protective film. That is, the protective film of the multilayer film 10 is composed of the decorative film 3 . ...

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Abstract

A touch panel includes a panel member and a multilayer film joined to a front face of the panel member, the multilayer film including a conductive film having a conductive layer and a protective film. In the multilayer film, the respective films are laminated to each other via an adhesive layer formed of a thermosetting type adhesive agent and formed in a three-dimensional shape along the front face.

Description

technical field [0001] The invention relates to a touch panel and a manufacturing method thereof. Background technique [0002] Conventionally, touch panels have been used as input devices in automotive audio equipment, home appliances, electronic equipment, and the like. A touch panel is generally formed by printing a conductive layer for detecting changes in electrostatic capacitance and a decorative layer for decoration, respectively, on the front surface of an insulating film. By using a touch panel, there are advantages in that the operation surface can be made flat, and various switch members and the like for input operations can be omitted. [0003] The decorative layer provided on the touch panel is selected from various decorative layers according to the use and requirements of the touch panel. However, in the case of printing and laminating a decorative layer and a conductive layer on a single film, various combinations of the conductive layer and the decorative ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/041
CPCG06F3/0414G06F2203/04103B32B7/12B32B15/08B32B15/082B32B15/085B32B15/09B32B23/00B32B23/042B32B27/26B32B27/281B32B27/308B32B27/32B32B27/325B32B27/36B32B27/365H03K17/962B32B2307/102B32B2307/202B32B2307/40B32B2307/412B32B2307/584B32B2307/71B32B2457/20B32B2457/202B32B2457/206B32B2457/208H03K2217/96031H03K2217/960755H03K2217/960785G06F1/1637G06F1/1643G06F3/041B29C45/14
Inventor 礒田丈司粟生仁志
Owner HOSIDEN CORP