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Fingerprint resistant film with high abrasion property for TFT-LCD (Thin Film Transistor-Liquid Crystal Display)

A technology of high wear resistance and anti-fingerprint film, applied in the field of TFT-LCD, can solve the problems of high surface smoothness of SiO2 buffer layer, limit the adhesion of anti-fingerprint film coating, etc., so as to improve the adhesion of coating and improve anti-fingerprint performance. Effect

Inactive Publication Date: 2017-11-14
HEFEI HUIKE PRECISION DIE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] PECVD uses the traditional three-step process of etching, coating SiO2 buffer layer and coating anti-fingerprint film for touch screen. When coating SiO2 buffer layer and anti-fingerprint film on the surface of glass substrate, it is easy to cause the surface smoothness of SiO2 buffer layer to be extremely high. Thereby limiting the coating adhesion of SiO2 buffer layer and anti-fingerprint film for touch screen
At the same time, with the development of touch technology, the requirements for the adhesion between the anti-fingerprint film for touch screen and the glass substrate coating are getting higher and higher, and the traditional technology is also facing more and more challenges in terms of coating adhesion requirements.

Method used

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Examples

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Effect test

Embodiment

[0016] Embodiment A kind of high abrasion resistance anti-fingerprint film that is used for TFT-LCD display screen, comprises the modified silicon dioxide buffer layer that vacuum evaporation is attached to TFT-LCD glass substrate surface and vacuum evaporation is attached to modified silica Perfluoropolyether film layer on the surface of the silicon buffer layer.

[0017] A preparation method for a high wear resistance anti-fingerprint film layer for a TFT-LCD display, comprising the following steps:

[0018] (1) Put the clean TFT-LCD glass substrate into the PECVD deposition chamber, and bombard the TFT-LCD glass substrate with O2 and Ar glow discharge to activate the surface of the TFT-LCD glass substrate;

[0019] (2) SiO2 is formed by high-temperature cracking of siloxane, vacuumed to a pressure of 5.0×10-3mbar, and then filled with O2 with a gas flow rate of 500sccm and silicone oil of 100sccm until the pressure in the vacuum chamber is 1.0×10-4mbar, and the intermediate...

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PUM

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Abstract

The invention discloses a fingerprint resistant film with high abrasion property for a TFT-LCD (Thin Film Transistor-Liquid Crystal Display). The fingerprint resistant film comprises a modified silicon dioxide buffer layer which is adhered to a surface of a TFT-LCD glass substrate through vacuum evaporation and a perfluoropolyether film layer which is adhered to the surface of the modified silicon dioxide buffer layer through vacuum evaporation. According to the fingerprint resistant film disclosed by the invention, the problem that the adhesive power of the fingerprint resistant film for the TFT-LCD and the SiO2 buffer layer is poor because the surface of SiO2 is too smooth and silicon-containing particles are not completely oxidized when the fingerprint resistant film for the TFT-LCD is prepared by adopting a conventional process through PECVD (Plasma Enhanced Chemical Vapour Deposition) is solved, and plating layer adhesive power between the fingerprint resistant film for the TFT-LCD and a reinforced glass substrate is improved; meanwhile, the perfluoropolyether material has a unique structure, and is applied to the FT-LCD to prevent better fingerprint resistance performance of a coating.

Description

technical field [0001] The invention relates to the technical field of TFT-LCD, in particular to a highly wear-resistant anti-fingerprint film for a TFT-LCD display screen. Background technique [0002] Anti-fingerprint anti-fingerprint film for TFT-LCD display has good hydrophobicity and oleophobicity. The adhesion of the coating has always been a permanent topic in the touch industry. Adding a layer of SiO2 buffer layer between the anti-fingerprint film for TFT-LCD display and the glass substrate can improve the coating adhesion between the anti-fingerprint film for TFT-LCD display and the glass substrate. The commonly used methods for preparing the buffer layer and the anti-fingerprint film for TFT-LCD display screens include PVD and CVD. Among them, the deposition rate of PVD technology is slow and the coating adhesion is insufficient, while the deposition temperature of CVD technology is higher (900-1200 °C). ℃). Therefore, PECVD technology, which combines the advant...

Claims

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Application Information

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IPC IPC(8): C03C17/42
CPCC03C17/42C03C2217/213C03C2217/78C03C2218/151
Inventor 白航空
Owner HEFEI HUIKE PRECISION DIE CO LTD