Capacitive touch screen

A capacitive touch screen and conductive layer technology, which is applied in the input/output process of electrical digital data processing, instruments, and data processing, etc. The effect of improving and reducing the difficulty of driving

Inactive Publication Date: 2015-01-21
ZHANGJIAGANG KANGDE XIN OPTRONICS MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention aims to provide a capacitive touch screen to solve the problems of large square resistance and low light transmittance of the capacitive touch screen in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] set up figure 1 As shown in the capacitive touch screen, the structure of the conductive pattern layer is as follows figure 2 As shown, the thickness and material of each first ITO conductive layer 31, the first anti-oxidation layer 32, metal layer 33, the second anti-oxidation layer 34 and the second ITO conductive layer 35 are shown in Table 1, and the resistance of the conductive pattern layer Ratio, light transmittance and sensitivity of capacitive touch screen are tested, and the test results are shown in Table 2.

Embodiment 2

[0050] set up figure 1 As shown in the capacitive touch screen, the structure of the conductive pattern layer is as follows figure 2 As shown, the thickness and material of each first ITO conductive layer 31, the first anti-oxidation layer 32, metal layer 33, the second anti-oxidation layer 34 and the second ITO conductive layer 35 are shown in Table 1, and the resistance of the conductive pattern layer Ratio, light transmittance and sensitivity of capacitive touch screen are tested, and the test results are shown in Table 2.

Embodiment 3

[0052] set up figure 1 As shown in the capacitive touch screen, the structure of the conductive pattern layer is as follows figure 2 As shown, the structure of the conductive pattern layer is as figure 2 As shown, the thickness and material of each first ITO conductive layer 31, the first anti-oxidation layer 32, metal layer 33, the second anti-oxidation layer 34 and the second ITO conductive layer 35 are shown in Table 1, and the resistance of the conductive pattern layer Ratio, light transmittance and sensitivity of capacitive touch screen are tested, and the test results are shown in Table 2.

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Abstract

The invention provides a capacitive touch screen which comprises a base plate and an induction layer, wherein the induction layer comprises a substrate, a frame lead and a conductive graphics layer; the substrate is arranged on the base plate, the frame lead is arranged on the substrate, and the conductive graphics layer is arranged on the substrate and connected with the frame lead; the conductive graphics layer comprises a first ITO conducting layer, a first antioxidation layer, a metal layer, a second antioxidation layer and a second ITO conducting layer; the first ITO conducting layer is arranged on the substrate, and the first antioxidation layer is arranged on the surface of the first ITO conducting layer; the metal layer is arranged on the surface, far away from the first ITO conducting layer, of the first antioxidation layer; the second antioxidation layer is arranged on the surface, far away from the first antioxidation layer, of the metal layer; the second ITO conducting layer is arranged on the surface, far away from the metal layer, of the second antioxidation layer; the frame lead is connected with one or more of the first ITO conducting layer, the first antioxidation layer, the metal layer, the second antioxidation layer and the second ITO conducting layer. The capacitive touch screen has the advantages of high sensitivity, small driving difficulty and good brightness and definition.

Description

technical field [0001] The invention relates to the field of touch screens, in particular to a capacitive touch screen. Background technique [0002] Large-size capacitive touch screens work by using human body current induction. With the rapid update of electronic products, large-size capacitive touch screens, which are widely used in mobile phones, GPS, tablet computers and other electronic products, are moving towards large size, high transparency and low Manufacturing cost direction development. Capacitive touch screens generally include four layers from top to bottom: substrate, sensing layer, OCA adhesive layer, and display screen. The sensing layer includes a conductive graphic layer and external leads. At present, the conductive graphic layer of large-size capacitive touch screens is mostly ITO (tin-doped Indium oxide) transparent conductive layer, and its development in large-size capacitive touch screens is also encountering some bottlenecks in technology developm...

Claims

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Application Information

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IPC IPC(8): G06F3/044
CPCG06F3/044
Inventor 陈西宝于甄解金库王道翠曹星星
Owner ZHANGJIAGANG KANGDE XIN OPTRONICS MATERIAL
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