Grapheme capacitive touch screen

A capacitive touch screen and graphene technology, applied in the direction of electrical digital data processing, instruments, data processing input/output process, etc., can solve the problems of low conductivity, brittleness, price rise, etc., and achieve high sensitivity and high conductivity The effect of high light transmittance

Inactive Publication Date: 2013-09-04
CHONGQING INST OF GREEN & INTELLIGENT TECH CHINESE ACADEMY OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The main disadvantages are as follows: yellowish color, low conductivity, brittleness, unstable chemical properties, poisonous, and the price is rising day by day due to the scarcity of indium

Method used

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  • Grapheme capacitive touch screen
  • Grapheme capacitive touch screen

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with drawings and embodiments.

[0021] A graphene capacitive touch screen, such as figure 1 As shown, transparent film layer I and transparent film layer II are included, graphene layer I and graphene layer II are respectively arranged on the surfaces of transparent film layer I and transparent film layer II, and graphene layer II is bonded to the transparent film layer On the surface of I, a voltage source is arranged on the graphene layer I or the graphene layer II, and a sensing line is arranged on the graphene layer II or the graphene layer I.

[0022] Both the graphene layer I and the graphene layer II are engraved with electrical isolation lines, and the electrical isolation lines divide the graphene layer into multiple conduction areas, and the conduction areas of the graphene layer I and the conduction areas of the graphene layer II intersect laterally The location is a sensing node, and a vo...

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Abstract

The invention relates to the field of touch screens of the electronic information technology, in particular to a grapheme capacitive touch screen. The grapheme capacitive touch screen comprises a transparent film layer I and a transparent film layer II. A grapheme layer I and a grapheme layer II are arranged on the surface of the transparent film layer I and the surface of the transparent film layer II respectively. The grapheme layer II is adhered to the surface of the transparent film layer I. A voltage source is arranged on the grapheme layer I or the grapheme layer II. Sense lines are arranged on the grapheme layer I or the grapheme layer II. ITO materials are replaced by grapheme materials which are used for manufacturing the capacitive touch screen. The grapheme capacitive touch screen has the advantages of being foldable, high in sensitivity, light, thin, high in light penetrating rate, high in electricity conducting rate, low in cost, green and friendly to environment.

Description

technical field [0001] The invention relates to the field of electronic information technology touch screens, in particular to a capacitive touch screen. Background technique [0002] Touch screen, also known as touch panel, is currently the simplest, most convenient and natural way of human-computer interaction. The touch screen is an inductive liquid crystal display device that can receive input signals such as contacts. When the graphic button on the screen is touched, the tactile feedback system on the screen can drive various connecting devices according to the pre-programmed program, smooth screen touch The control experience and button interface design allow the touch screen to gradually replace some functions of the mouse and keyboard, and create vivid audio-visual effects through the liquid crystal display screen. [0003] Several touch screen technologies currently developed are generally divided into four categories according to their working principles: resistiv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/044
Inventor 史浩飞邵丽黄德萍李占成杜春雷
Owner CHONGQING INST OF GREEN & INTELLIGENT TECH CHINESE ACADEMY OF SCI
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