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Transparent conductive film and capacitive touch screen containing the same

A technology of transparent conductive film and transparent substrate, applied in electrical digital data processing, input/output process of data processing, instruments, etc., can solve problems such as serious three-dimensional lines, reduce stress differences, reduce production costs, and simplify The effect of the process

Active Publication Date: 2019-03-15
ZHANGJIAGANG KANGDE XIN OPTRONICS MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The main purpose of the present invention is to provide a transparent conductive film and a capacitive touch screen containing it, so as to solve the serious problem of three-dimensional lines in the transparent conductive film and the capacitive touch screen in the prior art

Method used

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  • Transparent conductive film and capacitive touch screen containing the same
  • Transparent conductive film and capacitive touch screen containing the same
  • Transparent conductive film and capacitive touch screen containing the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] The surface of the transparent substrate layer 30 is coated with a hardening solution of the type CH202 selected from Japan Arakawa Chemical Co., Ltd., dried and cured to form the first hardened layer 10 . Then, in the same manner, the surface of the transparent substrate layer 30 far away from the first hardened layer 10 is coated with a hardening solution selected from the Japanese DIC company with a model number of PC13-1082 to form the second hardened layer 50 .

[0039] Using a magnetron sputtering process, a film is coated on the surface of the second hardened layer 50 away from the transparent substrate layer 30 to obtain an amorphous ITO layer. form figure 1 The transparent conductive film shown.

[0040] The amorphous ITO layer 70 of the transparent conductive film was etched by an ink screen printing etching method, and then baked at a temperature of 150° C. for 60 minutes. The specific structural parameters of the transparent conductive film are shown in Ta...

Embodiment 2

[0042] Adopt the same method as Example 1 to prepare a transparent conductive film, the structural parameters of the prepared transparent conductive film are shown in Table 1, wherein, the hardening solution for coating the first hardening layer 10 is the hardening solution of FZ001 from DIC Corporation of Japan, The hardening solution for coating the second hardening layer 50 is the hardening solution of JSR Corporation, Japan, whose model number is KZ6661. The specific structural parameters of the transparent conductive film are shown in Table 1.

Embodiment 3

[0044] The transparent conductive film is prepared by the same method as in Example 1. The structural parameters of the prepared transparent conductive film are shown in Table 1, wherein the hardening solution for coating the first hardening layer 10 is the hardening solution of CH202 from Japan Arakawa Chemical Co. , the hardening liquid that coats the second hardening layer 50 is the hardening liquid that the model of JSR Company of Japan is KZ6661, forms figure 1 The transparent conductive film shown. The specific structural parameters of the transparent conductive film are shown in Table 1.

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Abstract

The invention provides a transparent conductive film and a capacitive touch screen comprising the same. The transparent conductive film comprises a first hardened layer, a transparent substrate layer, a second hardened layer and an amorphous ITO (indium tin oxide) layer, wherein the transparent substrate layer is arranged on the surface of the first hardened layer; the second hardened layer is arranged on the surface, far from the first hardened layer, of the transparent substrate layer, and the thickness of the first hardened layer is larger than that of the second hardened layer by 0.5-3 mu m; the amorphous ITO layer is arranged on the surface, far from the transparent substrate layer, of the second hardened layer. The transparent conductive film has the characteristics of low solid lines, low impedance, high-temperature resistance, scratch resistance, low cost, simple production process and the like.

Description

technical field [0001] The invention relates to the field of touch screens, in particular to a transparent conductive film and a capacitive touch screen comprising it. Background technique [0002] The existing transparent conductive film for capacitive touch screens will have three-dimensional lines after etching and heat treatment, which cannot meet the needs of some high-end customers [0003] The main reasons for the three-dimensional pattern are: (1) The etched part of the ITO layer (indium tin oxide layer) has a difference in optical characteristics from the non-etched part (including the transmission and reflection characteristics in the visible light range, referred to as chromatic aberration), Thereby producing three-dimensional lines; (2) In the later heat treatment process, due to the difference in the thermal shrinkage rate of each layer, the stress mismatch phenomenon between the coatings will occur, which is because the ITO layer and the transparent substrate l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/044
Inventor 徐金龙张国臻
Owner ZHANGJIAGANG KANGDE XIN OPTRONICS MATERIAL
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