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Transparent conductive film and capacitive touch screen including it

A technology of transparent conductive film and transparent substrate, applied in the direction of electrical digital data processing, input/output process of data processing, instruments, etc., can solve the problems of poor anti-fouling and slip resistance of transparent conductive film, obvious three-dimensional lines, etc., and achieve stress difference The effect of reducing, simplifying the preparation process and avoiding pollution

Active Publication Date: 2019-03-22
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 problems in the prior art that the transparent conductive film has poor anti-fouling and slip resistance and obvious three-dimensional lines

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

[0049] The surface of the transparent substrate layer 30 is coated with an acrylic resin layer, dried and cured to form the fingerprint affinity layer 10 .

[0050] Using the sputtering method, the first optical adjustment layer 51, the second optical adjustment layer 52 and the amorphous ITO layer 70 are arranged on the surface of the transparent substrate layer 30 away from the above-mentioned fingerprint affinity layer 10 to form figure 2 The transparent conductive film shown.

[0051] 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 Table 1.

Embodiment 2

[0053] The surface of the transparent substrate layer 30 is coated with a hardening solution selected from Japan Arakawa Chemical Co., Ltd., model number FZ001, dried and cured to form a fingerprint affinity layer 10 with a film thickness of 5.0 μm. Then, in the same way, on the surface of the transparent substrate layer 30 away from the above-mentioned fingerprint affinity layer 10, the hardening solution selected from the model PC13-1082 of DIC Corporation in Japan is coated to form a hardening layer 40 with a film thickness of 0.3 μm. .

[0054] Using a magnetron sputtering process, a film is coated on the surface of the hardened layer 40 away from the above-mentioned transparent substrate layer 30, and the first optical adjustment layer 51, the second optical adjustment layer 52 and the amorphous ITO layer 70 are sequentially obtained, forming image 3 The transparent conductive film shown.

[0055] The ITO layer of the transparent conductive film was etched by an ink scr...

Embodiment 3

[0057] Adopt the method identical with embodiment 1 to prepare image 3 For 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 fingerprint affinity layer 10 is the hardening solution of FZ001 from Japan Arakawa Chemical Co., Ltd., and the coating hardening layer 40 The hardening solution used is the PC13-1082 hardening solution from DIC Corporation of Japan, and 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 fingerprint affinity layer, a transparent substrate layer, an optical adjustment layer and an amorphous ITO (indium tin oxide) layer, wherein the transparent substrate layer is arranged on the surface of the fingerprint affinity layer; the optical adjustment layer is arranged on the surface, far from the fingerprint affinity layer, of the transparent substrate layer; the amorphous ITO layer is arranged on the surface, far from the transparent substrate layer, of the optical adjustment layer. The transparent conductive film has the characteristics of unapparent solid lines, better anti-pollution performance and slip resistance, lower impedance, lower cost and simpler production process.

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 ...

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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