Transparent conductive film and capacitive touch screen including it

A technology of transparent conductive film and transparent substrate, which is applied in the direction of electrical digital data processing, input/output process of data processing, instruments, etc., can solve the problem of serious three-dimensional lines, achieve the relief of serious three-dimensional lines, reduce stress differences, Effect of Stress Difference Reduction

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

[0006] 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 problem that the three-dimensional lines of the transparent conductive film and the capacitive touch screen containing it are relatively serious in the prior art

Method used

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  • Transparent conductive film and capacitive touch screen including it
  • Transparent conductive film and capacitive touch screen including it
  • Transparent conductive film and capacitive touch screen including it

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] The surface of the transparent base material layer 30 is coated with a hardening solution of the type FZ001 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 .

[0040] Utilize the magnetron sputtering process, on the surface of the second hardened layer 50 away from the above-mentioned transparent substrate layer 30, a film is coated to obtain an amorphous ITO layer, forming figure 1 The transparent conductive film shown.

[0041] 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 cond...

Embodiment 2

[0043] Adopt the method identical with embodiment 1 to prepare figure 1 The transparent conductive film shown, 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 of Japan Arakawa Chemical Co., Ltd., and the second hardening solution for coating is FZ001. The hardening liquid of layer 50 is the hardening liquid of the model number KZ6661 of JSR Company of Japan. The specific structural parameters of the transparent conductive film are shown in Table 1.

Embodiment 3

[0045] Adopt the method identical with embodiment 1 to prepare figure 1 The transparent conductive film shown, 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 of Japan Arakawa Chemical Co., Ltd., and the second hardening solution for coating is FZ001. The hardening liquid of layer 50 is the hardening liquid of model KZ6661 of Japanese JSR company, 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 shrinkage of the transparent substrate layer in the machine direction is larger than 0 and smaller than or equal to 0.5%, and the shrinkage in the transverse direction is larger than 0 and smaller than or equal to 0.1%; the second hardened layer is arranged on the surface, far from the first hardened layer, of the transparent substrate layer; 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, low cost, simple preparation 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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