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Touch screen

A touch screen and nanotechnology, applied in the direction of instruments, electrical digital data processing, data processing input/output process, etc., can solve the problems of screen reflection and weak absorption of visible light, etc., and achieve the effect of reducing reflection phenomenon

Inactive Publication Date: 2012-10-31
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, nano-titanium dioxide has a strong ability to absorb ultraviolet light and a weak ability to absorb visible light.
Therefore, the existing nano-titanium dioxide coating cannot well solve the problem of screen reflection

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0007] The touch screen of the present invention includes a glass substrate with a conductive layer formed on the inner surface and a coating formed on the outer surface of the glass substrate (the side for the user to touch), and the coating is composed of titanium dioxide (TiO2) and cadmium selenide (CdSe). ), wherein the weight ratio of titanium dioxide to cadmium selenide is 3:1. The titanium dioxide in the coating has an anatase crystal structure with a particle size of 2 nanometers. The particle size distribution of cadmium selenide is between 2.3 nanometers and 3.7 nanometers. Preferably, the cadmium selenide particles with particle sizes of 2.3 nm, 2.6 nm, 3.0 nm and 3.7 nm are mixed at 25%, 15%, 45% and 15% by weight.

[0008] When manufacturing the touch screen, nano titanium dioxide powder and nano cadmium selenide powder are mixed in a weight ratio of 3:1, deionized water is added to make a slurry, the slurry is sprayed on a glass substrate, and then the glass sub...

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PUM

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Abstract

A touch screen comprises a substrate and a coating formed on the substrate. The coating comprises titanium dioxide and cadmium selenide, wherein proportion of the titanium dioxide to the cadmium selenide by weight is 3:1, particle size of the titanium dioxide is 2 nanometers, and particle size of the cadmium selenide is 2.3-3.7 nanometers. By forming the nano titanium dioxide and the nano cadmium selenide coating on the substrate, visible light can be absorbed by the nano cadmium selenide, reflection of the touch screen is reduced, fingerprints on the touch screen can be removed by light-catalyzed reaction of the nano titanium dioxide, and accordingly the touch screen is provided with functions of reflection resistance and fingerprint resistance.

Description

technical field [0001] The present invention relates to a touch screen. Background technique [0002] Touch screens are widely used in electronic devices such as smartphones and tablet computers. The touch screen is easily contaminated with fingerprints during use, which affects the appearance of electronic products. In addition, when these electronic products are used under the sun or light, the screen reflection can make the content of the screen unclear and cause eye discomfort. [0003] Studies have found that nano-titanium dioxide can absorb light of specific wavelengths and undergo photocatalytic reactions. The photocatalytic reaction can sterilize and decontaminate. Taking advantage of the above-mentioned properties of nano-titanium dioxide, people make nano-titanium dioxide coatings on the surfaces of exterior glass, ceramic sanitary ware and other products, and use the photocatalytic properties of nano-titanium dioxide to make products with self-cleaning function...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/041
Inventor HUANG ZHAOXUN
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD