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White capacitive touch screen and preparation method thereof

A capacitive touch screen, white technology, applied in the direction of electrical digital data processing, instruments, data processing input/output process, etc., can solve the problems of restricting the development of white OGS, material limitations, and high cost of white OGS preparation

Active Publication Date: 2018-01-12
YICHANG NANBO DISPLAY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Currently, white capacitive touch screens (OGS) tend to have poor color effects compared to white covers
The reason is that there are generally two insulating layers in white OGS, and the insulating layer needs to be baked to form during the preparation process, that is to say, at least two high-temperature bakings are required in the preparation process of white OGS, and high-temperature baking It will change the reflective chromaticity of white OGS. For this reason, it is often necessary to select high-temperature-resistant white shading materials for the production of white OGS, and this will lead to high preparation costs of white OGS, and the selection of materials is limited, which restricts the quality of white OGS. The development of OGS

Method used

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  • White capacitive touch screen and preparation method thereof
  • White capacitive touch screen and preparation method thereof
  • White capacitive touch screen and preparation method thereof

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preparation example Construction

[0040] Such as figure 2 As shown, the method for preparing a white capacitive touch screen according to one embodiment can be used to prepare the above-mentioned white capacitive touch screen. The preparation method of this white capacitive touch screen comprises the steps:

[0041] Step S210 : sequentially forming a niobium pentoxide layer, a white shielding layer, a black shielding layer, a silicon dioxide layer and a first conductive layer on the substrate.

[0042] Wherein, the substrate is a glass substrate. Preferably, the thickness of the substrate is 0.3-1.1 mm.

[0043] Wherein, the thickness of the niobium pentoxide layer is 50-200 angstroms. Wherein, the method for forming the niobium pentoxide layer is vacuum sputtering.

[0044] The material of the white shielding layer is white photoresist, for example, white photoresist SPW1000 of New Applied Materials Co., Ltd. Wherein, the white photoresist is a photoresist containing titanium dioxide, a polymer resin, a...

Embodiment 1

[0067] The preparation of the white capacitive touch screen of the present embodiment is as follows:

[0068] (1) A glass substrate is provided, and a niobium pentoxide layer with a thickness of 50 angstroms is formed by vacuum sputtering sequentially on one surface of the glass substrate with a thickness of 0.3mm, and a white shielding layer with a thickness of 1 micron is formed by photolithography, and photolithography A black shielding layer with a thickness of 3 microns is formed, a silicon dioxide layer with a thickness of 600 angstroms is formed by vacuum sputtering, and a first ITO conductive layer with a thickness of 200 angstroms is formed by vacuum sputtering, wherein the material of the white shielding layer is white BM, the material of the black light-shielding layer is black BM.

[0069] (2) Coating OC insulating glue on the first conductive layer, and baking at 250° C. for 30 minutes to form a first insulating layer with a thickness of 1 micron.

[0070] (3) Va...

Embodiment 2

[0074] The preparation of the white capacitive touch screen of the present embodiment is as follows:

[0075] (1) A glass substrate is provided, and a niobium pentoxide layer with a thickness of 200 angstroms is formed by vacuum sputtering sequentially on one surface of the glass substrate with a thickness of 1.1 mm, a white shielding layer with a thickness of 3 microns is formed by photolithography, and a white shielding layer is formed by photolithography. Forming a black shielding layer with a thickness of 1 micron, vacuum sputtering to form a silicon dioxide layer with a thickness of 300 angstroms and vacuum sputtering to form a first ITO conductive layer with a thickness of 1500 angstroms, wherein the material of the white shielding layer is white Photoresist, the material of the black light-shielding layer is black photoresist.

[0076] (2) Coating OC insulating glue on the first conductive layer, and baking at 200° C. for 60 minutes to form a first insulating layer with...

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Abstract

The invention relates to a white capacitive touch screen and a manufacturing method thereof. The white capacitive touch screen comprises a substrate, a niobium pentoxide layer, a white shielding layer, a black shielding layer, a silicon dioxide layer, a first electric conduction layer, a first insulation layer, a second electric conduction layer, a metal layer and a second insulation layer in a sequential stacking mode. The reflection chromaticity of the white capacitive touch screen is improved, and the cost is low.

Description

technical field [0001] The invention relates to the field of touch screens, in particular to a white capacitive touch screen and a preparation method thereof. Background technique [0002] Currently, white capacitive touch screens (OGS) tend to have poor color effects compared to white cover plates. The reason is that there are generally two insulating layers in white OGS, and the insulating layer needs to be baked to form during the preparation process, that is to say, at least two high-temperature bakings are required in the preparation process of white OGS, and high-temperature baking It will change the reflective chromaticity of white OGS. For this reason, it is often necessary to select high-temperature-resistant white shading materials for the production of white OGS, and this will lead to high preparation costs of white OGS, and the selection of materials is limited, which restricts the quality of white OGS. OGS development. Contents of the invention [0003] In v...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/044
Inventor 黄勇祥郑建万申浩林虹云资小群石国强王余刚池京容
Owner YICHANG NANBO DISPLAY
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