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Touch panel having high durability

A touch screen, durability technology, applied in the direction of contacts, nonlinear optics, conductive layers on insulating carriers, etc., can solve the problems of glass breakage, fragile glass pieces, difficult handling, etc., and achieve the effect of high durability

Inactive Publication Date: 2004-12-01
NISSHA PRINTING COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, using a glass sheet of this thickness will become very fragile, so handling when assembling the touch panel becomes very difficult, and there is also a possibility that the glass may be broken during touch panel input operations

Method used

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  • Touch panel having high durability
  • Touch panel having high durability
  • Touch panel having high durability

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Experimental program
Comparison scheme
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Embodiment Construction

[0028] Before continuing the description of the present invention, in the drawings, the same reference signs are used for the same components.

[0029] The present invention will be described in detail below with reference to the accompanying drawings. Figure 1 ~ Figure 3 It is a cross-sectional view showing a highly durable low-reflection touch panel according to Embodiments 1 to 3 of the present invention. In the figure, 1 is an upper electrode plate, 2 is an upper electrode, 3 is a lower electrode plate, 4 is a lower electrode, 5 is an adhesive layer such as double-sided tape as an example, 6 is an air layer, 7 is a spacer block, and 8 is a resistance Thermally transparent resin sheet, 9 is a 1 / 4 wave plate, 10 is a polarizer.

[0030] The basic structure of the touch screen is an upper electrode plate 1 with an upper electrode 2 made of a transparent conductive film on the lower surface, and a lower electrode plate 3 with a lower electrode 4 made of a transparent conduct...

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PUM

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Abstract

An upper electrode plate (1) has a 0.15 to 0.8 mm thick optically isotropic heat-resistant transparent resin plate (8) having a glass transition temperature characteristic of not less than 150 DEG C. The heat-resistant transparent resin plate is laminated directly or indirectly on a quarter wave plate (9) all over their surfaces.

Description

technical field [0001] The present invention relates to a touch panel that does not cause a decrease in anti-reflection characteristics due to hysteresis changes even if it is left in a high-temperature environment for a long time, can perform comfortable input operations, has good operability when assembling, and has high durability. The touch screen is mainly used in fields such as car navigation. Background technique [0002] Conventionally, touch screens have been installed in front of displays such as LCDs, organic ELs, and CRTs that are widely used in products such as PDAs (Personal Digital Assistants), mobile phones, and personal computers. The basic structure of the touch screen is an upper electrode plate with an upper electrode made of a transparent conductive film on the lower surface, and a lower electrode plate with a lower electrode made of a transparent conductive film on the upper surface. The two electrode plates are bonded and fixed only outside the displ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/133G06F3/041G06F3/045H01H13/70H01H13/703
CPCH01H13/703G06F3/041G06F3/045H01H13/70G02F1/13338H01H2201/018H01H2209/06G06F3/0412H01B5/14
Inventor 高畑和彦桥本孝夫西川和宏朝仓刚
Owner NISSHA PRINTING COMPANY