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Transparent conductor for touch screen, preparation method and application thereof

A technology of transparent conductors and touch screens, which is applied in the direction of electrical digital data processing, instruments, and input/output processes of data processing, etc., and can solve problems such as low efficiency, long production time, waste of raw materials, etc.

Active Publication Date: 2018-04-06
ANHUI JINGZHUO OPTICAL DISPLAY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This production method requires expensive evaporation / sputtering equipment, long production time, low efficiency, and "subtractive" production causes a great waste of raw materials

Method used

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  • Transparent conductor for touch screen, preparation method and application thereof
  • Transparent conductor for touch screen, preparation method and application thereof
  • Transparent conductor for touch screen, preparation method and application thereof

Examples

Experimental program
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preparation example Construction

[0035] see Figure 4 , a method for preparing a transparent conductor for a touch screen comprising the following steps:

[0036] Step S100 , coating a photoresist on one surface of the transparent substrate.

[0037] see Figure 5 , coating the photoresist 140 on the upper surface of the transparent substrate 110, and prebaking the photoresist 140. The photoresist 140 may specifically be a ma-P1210 type positive photoresist produced by MRT (Micro Resist Technology), with a pre-baking temperature of 100° C. and a pre-baking time of 90 s.

[0038] The material of the transparent substrate 110 is glass or plastic. The glass can be optical quartz glass or ordinary optical glass. The plastic is polymethyl methacrylate or polycarbonate. The thickness of the transparent substrate 110 is 50 μm˜300 ​​μm.

[0039] Step S200, exposing and developing the photoresist to form a pattern area on the surface of the transparent substrate.

[0040] see Figure 6 Firstly, a mask plate is...

Embodiment 1

[0060] A method for preparing a transparent conductor for a touch screen, comprising the following steps:

[0061] 1. Coat one surface of the transparent substrate with photoresist.

[0062] A photoresist is coated on the upper surface of the transparent substrate, and the photoresist is prebaked. The transparent substrate is optical quartz glass with a thickness of 0.3mm and a transmittance of 93%. The photoresist is ma-P1210 type positive photoresist with a thickness of 2 μm. The pre-baking temperature is 100°C, and the pre-baking time is 90s.

[0063] 2. Exposing and developing the photoresist to form a pattern area on the surface of the transparent substrate.

[0064] After utilizing the mask plate to protect the region that the photoresist does not need to be exposed, the ma-P1210 type positive photoresist is exposed and developed to form the upper surface of the optical quartz glass such as figure 2 pattern area as shown, and post-bake the photoresist. Among them, ...

Embodiment 2

[0075] A method for preparing a transparent conductor for a touch screen, comprising the following steps:

[0076] 1. Coat one surface of the transparent substrate with photoresist.

[0077] A photoresist is coated on the upper surface of the transparent substrate, and the photoresist is prebaked. The transparent substrate is soda glass with a thickness of 0.2 mm and a transmittance of 90%. The photoresist is ma-P1210 type positive photoresist with a thickness of 2 μm. The pre-baking temperature is 100°C, and the pre-baking time is 90s.

[0078] 2. Exposing and developing the photoresist to form a pattern area on the surface of the transparent substrate.

[0079] Utilize the mask plate to protect the region that the photoresist does not need to be exposed, expose and develop the ma-P1210 type positive photoresist, to form such as on the upper surface of the soda glass image 3 pattern area as shown, and post-bake the photoresist. Among them, the exposure wavelength of ma-...

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Abstract

The invention provides a transparent conductor for a touch screen, a preparation method and application thereof. The method for preparing a transparent conductor for a touch screen comprises the following steps: coating a photoresist on one surface of a transparent substrate; exposing and developing the photoresist to form a pattern area on the surface of the transparent substrate; Grooves are etched out along the pattern area on the surface of the surface; the remaining photoresist is removed; the slurry containing conductive materials is filled in the grooves and dried to form a conductive pattern to obtain a transparent substrate with a conductive pattern; An insulating protective layer is formed on the surface of the transparent base material of the conductive pattern to obtain a transparent conductor for a touch screen. The above-mentioned method for preparing a transparent conductor for a touch screen has a simple manufacturing process and can improve production efficiency; at the same time, due to the "additive" production process, the conductive material is embedded in the transparent substrate, reducing the amount of conductive material used.

Description

technical field [0001] The invention relates to the field of touch screens, in particular to a transparent conductor for a touch screen and a preparation method and application thereof. Background technique [0002] Touch screen devices are recognized by the public due to their many advantages such as durability, fast response, space saving, and easy communication. It can be said that it is currently the simplest, most convenient, and natural way of human-computer interaction. Touch screen devices are increasingly popular in electronic products such as mobile phones, computers, and public infrastructure equipment. [0003] At present, the transparent conductors used in capacitive touch screens are mainly coated with a layer of ITO on PET (polyethylene terephthalate) or glass substrates, and then the unnecessary parts are removed by etching, and finally the required parts are obtained. ITO pattern. This production method requires expensive evaporation / sputtering equipment, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/044
Inventor 刘伟唐彬唐根初
Owner ANHUI JINGZHUO OPTICAL DISPLAY TECH CO LTD