Low radiation cover glass for touch screen and preparation method thereof

A cover glass and low-radiation technology, applied in the input/output process of data processing, instruments, electrical digital data processing, etc., can solve problems such as blackening, dry skin, and prone to freckles, and achieve thin thickness and high performance Stabilize and improve the effect of anti-electromagnetic radiation

Inactive Publication Date: 2018-01-16
CHONGQING ZHONGGUANGDIAN DISPLAY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] While the touch screen brings convenience to people, it also brings some problems. Studies have found that the electromagnetic radiation generated by the touch screen usually has a biological effect on the body through thermal effects, non-thermal effects and stimulation. For example, using the touch screen for a long time will cause dry skin and easy spots and dark complexion

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment 1: ATP-Fe 3 o 4 Preparation of Composite Nanomagnetic Particles

[0024] Add attapulgite and deionized water with a mass ratio of 15:85 into the ball mill tank, then add sodium pyrophosphate with a mass fraction of 3.5%, mill in a ball mill for 5 hours at a speed of 300r / min, and obtain nano-concave-convex by centrifugation For clay, add 8g of nano-attapulgite to each liter of deionized water, stir at a speed of 600r / min in a constant temperature water bath at 85°C, and slowly add 30mL of 0.3mol / L FeCl 2 Solution, use 0.1mol / L NaOH solution to control the pH=7.0 during the dropwise addition, after the dropwise addition, continue to stir and react for 3h, wash with deionized water magnetic separation for more than three times, and dry at room temperature in the air to obtain ATP-Fe 3 o 4 Composite magnetic nanoparticles.

Embodiment 2

[0025] Embodiment 2: ATP-Fe 3 o 4 Preparation of Composite Nanomagnetic Particles

[0026] Add attapulgite and deionized water with a mass ratio of 15:85 into the ball mill tank, then add sodium pyrophosphate with a mass fraction of 3.5%, mill in a ball mill for 5 hours at a speed of 300r / min, and obtain nano-concave-convex by centrifugation For clay, add 8g of nano-attapulgite to each liter of deionized water, stir at a speed of 600r / min in a constant temperature water bath at 85°C, and slowly add 30mL of 0.5mol / L FeCl 2 Solution, use 0.1mol / L NaOH solution to control the pH=7.0 during the dropwise addition, after the dropwise addition, continue to stir and react for 3h, wash with deionized water magnetic separation for more than three times, and dry at room temperature in the air to obtain ATP-Fe 3 o 4 Composite magnetic nanoparticles.

Embodiment 3

[0027] Embodiment three: ATP-Fe 3 o 4 Preparation of Composite Nanomagnetic Particles

[0028] Add attapulgite and deionized water with a mass ratio of 15:85 into the ball mill tank, then add sodium pyrophosphate with a mass fraction of 3.5%, mill in a ball mill for 5 hours at a speed of 300r / min, and obtain nano-concave-convex by centrifugation For clay, add 8g of nano-attapulgite to each liter of deionized water, stir at a speed of 600r / min in a constant temperature water bath at 85°C, and slowly add 30mL of 0.7mol / L FeCl 2 Solution, use 0.1mol / L NaOH solution to control the pH=7.0 during the dropwise addition, after the dropwise addition, continue to stir and react for 3h, wash with deionized water magnetic separation for more than three times, and dry at room temperature in the air to obtain ATP-Fe 3 o 4 Composite magnetic nanoparticles.

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Abstract

The invention relates to the technical field of touch screen, and especially relates to a low radiation cover glass for touch screen and a preparation method thereof. The cover glass comprises an ultrathin glass sheet. A wave absorbing composite masking liquid is sprayed on the ultrathin glass sheet to form a wave absorbing film after curing. The main solvent of the wave absorbing composite masking liquid is ethanol. 1.5 to 3.5 wt% of wave absorbing composite powder and 2 to 5 wt% of bonding agent are dispersed in ethanol. The wave absorbing composite powder is an ATP-Fe3O4-RGO-Ni particle, which is prepared by the following steps: wrapping Fe3O4 by nano attapulgite to modify Fe3O4, and then combining modified Fe3O4 with nickel loaded graphene. The preparation method has the advantages ofsimple technology and convenient operation. The prepared cover glass has a stable performance and a strong wave absorbing property, can effectively prevent electromagnetic radiation for a long term, and can reduce the harmful effect of electromagnetic radiation generated by toughing a touch screen to human body.

Description

technical field [0001] The invention relates to the technical field of touch screens, in particular to a low-radiation cover glass for a touch screen and a preparation method thereof. Background technique [0002] In recent years, mobile terminals have developed rapidly and are widely used in daily life. As a product of the new era, touch screens can be seen everywhere in life. Touch screen, also known as "touch screen" or "touch panel", is an inductive glass liquid crystal display device that can receive input signals such as contacts. When touching the graphic buttons on the screen, the tactile feedback system on the screen It can drive various connection devices according to the pre-programmed program, which can be used to replace the mechanical button panel, and can produce vivid audio-visual effects through the liquid crystal display screen. As the latest computer input device, the touch screen is currently the simplest, most convenient and natural way of human-compute...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C17/22G06F3/041
Inventor 李宪荣
Owner CHONGQING ZHONGGUANGDIAN DISPLAY TECH CO LTD
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