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Protective panel having touch panel function

A technology for protecting panels and touching panels, which is applied in the input/output process of data processing, instruments, electrical digital data processing, etc., and can solve the problems of flatness, beauty, surface height difference and other problems of damaged decorative layers

Inactive Publication Date: 2012-01-25
NISSHA PRINTING COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This level difference will cause damage to the flatness and beauty of the decorative layer
In particular, when the decorative layer of the upper electrode side sheet has a metallic luster, the difference in surface level of the bottom surface appears on the surface of the protective panel and has a greater impact on the aesthetics.

Method used

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  • Protective panel having touch panel function
  • Protective panel having touch panel function
  • Protective panel having touch panel function

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0091] A decorative sheet having metallic luster was prepared by gravure printing and aluminum vapor deposition on a polyethylene terephthalate (hereinafter referred to as PET) sheet having a thickness of 38 μm. A hard-coated PET sheet of 125 μm was bonded to the surface of the decorative sheet opposite to the decorative layer using a 25 μm-thick substrate-free transparent adhesive sheet to obtain a hard-coated movable electrode. film. A PET sheet with a transparent conductive layer having a thickness of 25 μm was bonded to the movable electrode film. At this time, in the silver material coating for forming bus bars and circuits, a silver material coating with a film thickness of 7 µm and 90% of the non-electrode area was used. In addition, the overcoat material is overcoated in the overall wiring area except for the terminal extraction part. In this way, the movable electrode film is produced.

[0092] On a polycarbonate (hereinafter referred to as PC) sheet with a transpa...

Embodiment 2

[0095] A decorative sheet with metallic luster was fabricated on a PET sheet with a thickness of 38 μm by gravure printing and aluminum evaporation. A 125 μm hard-coated PET sheet was bonded to a 25 μm-thick transparent adhesive sheet without a base material on the side opposite to the decorative layer of the decorative sheet to obtain a hard-coated movable electrode film. A PET sheet with a transparent conductive layer having a thickness of 25 μm was bonded to the movable electrode film. At this time, in the coating of the silver material for forming busbars and circuits, the coating silver material has a film thickness of 7 μm in the non-electrode region and becomes gradually sparser toward the edge in a lattice shape. In addition, the overcoat material is overcoated in the overall wiring area except for the terminal extraction part. In this way, the movable electrode film was produced.

[0096] On a polycarbonate (hereinafter referred to as PC) sheet with a transparent co...

Embodiment 3

[0099] A decorative sheet with metallic luster was fabricated on a PET sheet with a thickness of 38 μm by gravure printing and aluminum evaporation. On the side opposite to the decorative layer of the decorative sheet, a 125 μm PET sheet with a surface hard coat was bonded using a transparent adhesive sheet with a thickness of 25 μm without a base material, and a movable electrode film with a hard coat was obtained . A PET sheet with a transparent conductive layer having a thickness of 25 μm was bonded to the movable electrode film. At this time, in the silver material coating for forming bus bars and circuits, a silver material coating with a film thickness of 7 μm and 90% of the non-electrode area was used. In addition, the overcoat material is overcoated in the overall wiring area except for the terminal extraction part. In addition, a paste-like material is applied as an adhesive sheet in the wiring area except for the terminal extraction portion. At this time, it is co...

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PUM

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Abstract

A protective panel (1) having a touch panel function, fitted without a gap in a panel fitting section (52) of a casing, which has an opening (51), such that the outer surface of the panel is flush with other surfaces and protecting the surface of a display device (60) placed so as to be viewable from the outside. In the protective panel (1), an upper electrode-side sheet (20), which has formed onit a decorative layer (23) and upper electrodes (41, 42), and a lower electrode-side sheet (10), which has lower electrodes (31, 32) formed on it, are arranged such that the electrodes of each sheet are opposite to each other. A step adjustment section (45) having substantially the same thickness as the upper electrodes (31, 32) is provided at a non-electrode section, in which the upper electrodes(41, 42) are not provided, on the lower face of the upper electrode-side sheet (20), and the step adjustment section (45) is provided so as not to be short-circuited to the upper electrodes (41, 42)and lower electrodes (31, 32).

Description

technical field [0001] The present invention relates to a protection panel which protects a display surface of a mobile phone terminal or a PDA and has a touch panel function as an input function. Background technique [0002] The casings of electronic devices such as mobile phones and smart phones are generally flat casings composed of synthetic resin front casings and rear casings. Specifically, a protective panel is fixed to the surface of the front case by melting or the like in order to protect the liquid crystal display window. Moreover, this protective panel has conventionally used a colorless transparent resin panel, but as electronic devices become popular, as shown in JP-A-2001-318612, decorations such as borders are added by printing. [0003] In addition, in recent years, as a next-generation interface in a mobile phone, it is desired to have an input device function on the protective panel. As an input device function, for example, an analog resistive touch pa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/033G06F3/041G06F3/045
CPCG06F3/041G06F3/045G06F1/1643G06F3/0412G06F2203/04103
Inventor 楠田康次桥本孝夫岩井俊之冈本好司清水润
Owner NISSHA PRINTING COMPANY