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Anti-wear fingerprint-proofing film-coated glass used for touch screen and preparation method thereof

A coated glass, wear-resistant technology, applied in the direction of coating, etc., can solve the problems of affecting the visual effect, affecting the service life, surface wear, etc., and achieve the effects of not easy to fall off, improving viscoelastic performance, and reducing volume shrinkage

Inactive Publication Date: 2017-12-22
CHONGQING ZHONGGUANGDIAN DISPLAY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As the latest computer input device, the touch screen is currently the simplest, most convenient and natural way of human-computer interaction. It gives multimedia a new look and is an attractive new multimedia interactive device, widely used in With the rapid development of portable electronic devices such as mobile phones, digital cameras, personal digital assistants (PDAs), tablet computers, and notebook computers, there are two outstanding problems in the use of touch screens: one is that the touch screen is often touched and used, which is easy to cause damage. Surface wear affects the service life; second, fingers are often used for touch operations, and dirt on the fingers, especially oil, is easy to adhere to the outer surface of the touch screen and leave fingerprints, which affects the visual effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Example 1: Nano TiO 2 Powder preparation

[0022] Concentrated hydrochloric acid with a molar ratio of 0.5 mol and 0.25 mol of titanium tetraisopropoxide were successively added to 300 mL of 1,4-dioxane solvent, stirred at room temperature for 10 min, and then transferred to a stainless steel high-pressure hydrothermal tank with a polytetrafluoroethylene liner. In the kettle, keep warm at 140°C for 4 hours, cool naturally to room temperature, pour out the reaction product, centrifuge and wash, dry at 90°C for 12 hours, transfer to a muffle furnace, and heat at 3°C / min in an air atmosphere The speed is raised to 850°C, calcined for 6 hours, taken out and cooled to room temperature to obtain nano titanium dioxide particles. The nano-TiO was found by scanning transmission electron microscopy 2 TiO 2 The nanorods self-assembled to form a flower-like microsphere structure, and the nanorods overlapped in layers to form the petal structure of the flower-like microsphere.

Embodiment 2

[0023] Example 2: Nano TiO 2 Powder preparation

[0024] Concentrated hydrochloric acid with a molar ratio of 0.5 mol and 0.25 mol of titanium tetraisopropoxide were successively added to 300 mL of 1,4-dioxane solvent, stirred at room temperature for 10 min, and then transferred to a stainless steel high-pressure hydrothermal tank with a polytetrafluoroethylene liner. In the still, keep it warm at 135°C for 4 hours, cool down to room temperature naturally, pour out the reaction product, centrifuge and wash, dry at 80°C for 12 hours, transfer to a muffle furnace, and heat at 5°C / min in an air atmosphere The speed is raised to 750°C, calcined for 6 hours, taken out and cooled to room temperature to obtain nano titanium dioxide particles. The nano-TiO was found by scanning transmission electron microscopy2 TiO 2 The nanorods self-assembled to form a mesoporous flower-like microsphere structure, and the nanorods overlapped in layers to form the petal structure of the flower-like...

Embodiment 3

[0025] Example 3: Preparation of wear-resistant and anti-fingerprint coated glass

[0026] The preparation of a wear-resistant and anti-fingerprint coated glass for a touch screen of this embodiment comprises the following steps:

[0027] S1. SiO 2 Preparation of the coating solution, first prepare SiO 2 Gel, add 20g of water glass into 84g of deionized water and mix well, add 0.9g of pentaerythritol and stir until it is completely dissolved, adjust the pH to 6.0 with acetic acid, stir for 20min, and let it stand for 2h to obtain a silica wet gel. The silica wet gel was aged in an oven at 40°C for 72 hours, taken out and placed in an ethanol solution for solvent replacement, every 3 hours, and replaced 4 times in a row, and then put into the hydrophobic modifier hexamethyldisiloxane Soak modification, once every 6h, after a total of 5 times, wash with ethanol solution, and dry at 65°C for 18h to obtain SiO 2 gel.

[0028] Take SiO with a mass concentration of 5% 2 Stir an...

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Abstract

The invention relates to the technical field of touch screens, and especially relates to anti-wear fingerprint-proofing film-coated glass used for a touch screen and a preparation method thereof. The film-coated glass includes a thin glass sheet and a protective film tightly attached thereto. The protective film includes a composite thin film, which is directly attached to the thin glass sheet, and a SiO2 film, which is formed on the composite thin film. The composite thin film contains silver-carrying nano TiO2; the surface of the SiO2 film has an uneven micro-structure; the protective film is formed by uniformly spray-coating the surface of the thin glass sheet with a composite coating liquid to form the composite thin film after solidification and then spray-coating the composite thin film with a SiO2 coating liquid to form the SiO2 film after solidification. The composite coating liquid is prepared with ethanol as a main solvent, wherein the silver-carrying nano TiO2 particles and SiO2 gel are dispersed in the composite coating liquid according to the mass ratio of 1:2. The method is easy and controllable. The film-coated glass is wear-resistant and is durable, has self-cleaning effect, has fingerprint-proofing and anti-reflection effects and is suitable for the technical field of touch screens.

Description

technical field [0001] The invention relates to the technical field of touch screens, in particular to a wear-resistant and anti-fingerprint coated glass for touch screens and a preparation method thereof. Background technique [0002] 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-computer interaction. It gives multimedia a new look and is an attractive new multimedia interactive device, widely used in With the rapid development o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C17/34
CPCC03C17/34C03C2217/71C03C2217/73C03C2217/77C03C2218/112
Inventor 李宪荣
Owner CHONGQING ZHONGGUANGDIAN DISPLAY TECH CO LTD
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