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High-luminance optical diffusion film

A technology of optical diffusion and high brightness, which is applied in the field of optical diffusion film, can solve the problem of low luminance gain of the diffusion film, and achieve the effect of excellent light concentrating effect, reduced processing cost and high luminance gain

Active Publication Date: 2019-03-15
NINGBO EXCITON TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of low luminance gain of existing diffusion films, the present invention provides a high-brightness optical diffusion film with simple structure and convenient manufacture

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] According to the material table in Table 1, add an appropriate amount of azo compound foaming agent, and stir to obtain a light diffusion layer coating solution. Coat the coating solution on the upper surface of 188 μm PET, heat and foam and simultaneously cure to obtain a thickness A light diffusion layer containing air bubbles of 5 μm; according to the material table in Table 2, the anti-adhesion layer coating solution was obtained by stirring, and the coating solution was coated on the lower surface of 188 μm PET, and heated and cured to obtain a thickness of 6 μm. Anti-blocking layer. The test results are shown in Table 21.

[0042]

[0043]

Embodiment 2

[0045] According to the material list in Table 3, add an appropriate amount of azo compound foaming agent, and stir to obtain a coating solution for the light diffusion layer. Coat the coating solution on the upper surface of 188 μm PET, heat and foam and simultaneously cure to obtain a thickness The light diffusion layer containing air bubbles is 9 μm; according to the material table in Table 4, the anti-adhesion layer coating solution is obtained by stirring, and the coating solution is coated on the lower surface of PET with a thickness of 188 μm, and heated and cured to obtain a thickness of 6 μm. Anti-blocking layer. The test results are shown in Table 21.

[0046]

[0047]

Embodiment 3

[0049] According to the material list in Table 5, add an appropriate amount of azo compound foaming agent, and stir to obtain a light diffusion layer coating solution. Coat the coating solution on the upper surface of 188 μm PET, heat and foam and simultaneously cure to obtain a thickness The light diffusion layer containing air bubbles is 13 μm; according to the material list in Table 6, the anti-adhesion layer coating solution is obtained by stirring, and the coating solution is coated on the lower surface of PET with a thickness of 188 μm, and heated and cured to obtain a thickness of 7 μm. Anti-blocking layer. The test results are shown in Table 21.

[0050]

[0051]

[0052]

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Abstract

The invention relates to an optical diffusion film, in particular to a high-luminance optical diffusion film. The problem of low brightness gain of an existing diffusion film is solved. The high-luminance optical diffusion film is simple in structure and convenient to manufacture. The high-luminance optical diffusion film comprises a base material, an optical diffusion layer and an anti-adhesion layer. The anti-adhesion layer contains air bubbles. The high-luminance optical diffusion film has high brightness gain and high brightness.

Description

technical field [0001] The invention relates to an optical diffusion film, in particular to a high-brightness optical diffusion film. Background technique [0002] Optical diffusion film is widely used in liquid crystal backlight module display, advertising background lighting, light box advertising and other fields. Especially in liquid crystal backlight module displays, the diffusion film is a key component. The diffusion film is mainly to uniformly transform the linear light source into a uniform surface light source [0003] A backlight unit (BLU) usually consists of a reflector, a light guide plate, and an optical film (diffusion film, brightness enhancement film). At present, the energy-saving and environmental protection requirements of the backlight module are becoming more and more stringent in the market, and the LED lamp beads used to provide the light source in the backlight module will be reduced accordingly, so that the overall brightness of the backlight mod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/02
CPCG02B5/0226G02B5/0268
Inventor 唐海江刘志鹏李兵军赵东东李刚张彦
Owner NINGBO EXCITON TECH
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