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High light transmittance ratio glass display protection panel and LCD device using same

A liquid crystal display, high light transmittance technology, applied in shielding, instruments, optics, etc., can solve the problems of reducing the surface reflectivity of protective screen materials, no fundamental changes, and difficult control of film thickness, etc., to achieve low cost, reduce light High reflectivity and high production efficiency

Inactive Publication Date: 2008-08-06
甘国工
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In particular, what kind of technical solution is used to reduce the surface reflectivity of the protective screen material? There have been many solutions emerging, such as depositing TiO on the surface of the resin layer by sol-gel method. 2 or Nb 2 o 5 / SiO 2 The anti-reflection and anti-reflection coating layer also uses the surface dip-coated silicone anti-reflection and anti-reflection layer, but because the film thickness is not easy to control, the light transmittance can only reach about 92%, and the yield is not high, and the surface is prone to rainbows. So far, the protective screen or protective film has not undergone fundamental changes, especially the practical technology and protective screen material with a reflectivity of less than 1%, a light transmittance of more than 93%, and more optimized industrialization costs of more than 97%.

Method used

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  • High light transmittance ratio glass display protection panel and LCD device using same
  • High light transmittance ratio glass display protection panel and LCD device using same
  • High light transmittance ratio glass display protection panel and LCD device using same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Fig. 1 has provided present embodiment 1 figure. Referring to Fig. 1, the display protection screen 1 of high transmittance glass is made of a transparent glass substrate 4 and two layers of anti-reflection and anti-reflection TiO deposited sequentially on both sides of the substrate 4 by vacuum magnetron sputtering. 2 Coating 2 and SiO 2 film layer 3, and the formation structure is SiO 2 / TiO 2 / Glass substrate / TiO 2 / SiO 2 Display protection screen 1 of high transmittance glass. Two layers of anti-reflection and anti-reflection coatings are coated on both sides of the substrate 4, the light transmittance is greater than 94%, the double-sided superimposed reflectance is less than 2%, and the optimized thickness of the coating is: TiO 2 10~16nm, SiO 2 It is 90~120nm.

Embodiment 2

[0026] Figure 2 shows the structure diagram of Embodiment 2. This embodiment 2 is basically the same as embodiment 1, the difference is that each of the two sides of the substrate 4 is coated with four layers of anti-reflection and anti-reflection coating layers, and the formation structure is SiO 2 / TiO 2 / SiO 2 / TiO 2 / Glass substrate / TiO 2 / SiO 2 / TiO 2 / SiO 2 Display protection screen 6 made of high-transmittance glass, the light transmittance on both sides is greater than 97%, and the reflectivity on both sides is less than 1.5%. The optimized thickness of the coating is as follows: SiO 2 100~115nm / TiO 2 30~36nm / SiO 2 36~45nm / TiO 2 8~12nm / glass substrate / TiO 2 8~12nm / SiO 2 36~45nm / TiO 2 30~36nm / SiO 2 It is 100~115nm.

Embodiment 3

[0028] Fig. 3 has provided the figure of present embodiment 3, and this implementation is basically the same as embodiment 2, and difference is that the two sides of substrate 4 are coated with six layers of anti-reflection and anti-reflection coating layers respectively, and the formation structure is SiO 2 / TiO 2 / SiO 2 / TiO 2 / SiO 2 / TiO 2 / Glass substrate / TiO 2 / SiO 2 / TiO 2 / SiO 2 / TiO 2 / SiO 2 High light transmittance glass display protection screen 7, the light transmittance is greater than 98.5%, the double-sided superimposed reflectivity is less than 1%, and the optimized thickness of the coating is as follows: SiO 2 100~130nm / TiO 2 12~18nm / SiO 2 40~60nm / TiO 2 8~12nm / SiO 2 30~40nm / TiO 2 1~3nm / glass substrate / TiO 2 1~3nm / SiO 2 30~40nm / TiO 2 8~12nm / SiO 2 40~60nm / TiO 2 12~18nm / SiO 2 100-130nm.

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Abstract

The invention provides a high transmittance glass display protection screen, which comprises a transparent glass substrate, wherein, a double-layer antireflection filming layer of TiO2 and SiO2 or Nb2O5 and SiO2 is deposited in turn by adoption of the vacuum magnetron sputtering method on both surfaces of the substrate, or a multilayered antireflection filming layer of TiO2 and SiO2 or Nb2O5 and SiO2 is overlapped and deposited in turn; a double-layer filming layer of the TiO2 layer and the SiO2 layer, a double-layer filming layer of the Nb2O5 layer and the SiO2 layer, a multilayered overlapped filming layer of the TiO2 layer and the SiO2 layer or a multilayered overlapped filming layer of the Nb2O5 layer and the SiO2 layer are formed in turn from the substrate to the outside. The protection screen of the invention can reduce reflectivity, improve transmittance and optical image effects, greatly reduce cost and fully improve the impact failure resistance of the display screen and become a safe protection screen. The invention also provides a liquid crystal display using the glass display protection screen.

Description

Technical field: [0001] The present invention is related to the protective screen of liquid crystal display (LCD), especially the glass with high light transmittance which can prevent the light reflection of the display panel, improve the light transmittance of the liquid crystal display and protect the display screen pasted and assembled in front of the liquid crystal display panel The protective screen of the monitor and the liquid crystal display using the protective screen are related. Background technique: [0002] From the working principle of liquid crystal display (hereinafter referred to as LCD), the LCD device is a device that controls the projection intensity to recognize the image when the backlight and the emitted light pass through the polarizer and the liquid crystal box, that is, the brightness of the LCD depends on passing through the liquid crystal box ( The light transmittance of the LCD screen) and the brightness of the color filter CF (the light transmit...

Claims

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Application Information

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IPC IPC(8): G02B5/00C23C14/08C23C14/35G02B1/10G12B17/00G02B1/115G02B1/14
Inventor 甘国工
Owner 甘国工
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