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High-brightness anti-adhesion brightness enhancement film and backlight module

A brightness-enhancing film and high-brightness technology, applied in optics, optical components, nonlinear optics, etc., can solve the problems of increased light loss, light loss, and low luminance, and achieve increased luminance, reduced light loss, and improved The effect of utilization

Inactive Publication Date: 2018-10-09
ZHANGJIAGANG KANGDE XIN OPTRONICS MATERIAL +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the existing backlight module has the defect of poor light utilization rate, because 7% of the light that is reflected when passing through the brightness enhancement film and the light that is reflected back through the surface of the prism will be recycled in the process of being recycled. shoot again, reflect
In this process, when the light passes through the substrate, diffusion film, air and other media, part of the light will be lost, which increases the light loss and reduces the utilization rate of the light of the backlight module, making the brightness of the backlight module not high, and the luminance is relatively low. Low

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0035] This embodiment provides a high-brightness anti-adhesive brightness-enhancing film, such as figure 1As shown, it includes a substrate 10, a prism layer 20 disposed on one side of the substrate and an anti-adhesion layer 30 disposed on the other side of the substrate, and an anti-reflection layer 40 is disposed on the side of the anti-adhesion layer away from the substrate. Among them, the base material is PET with a thickness of 188 μm; PMMA particles with a particle size of 3 μm are dispersed in the anti-adhesion layer, and the coating thickness is 1 μm. The reflectance of the anti-reflective layer is 3%, and its coating liquid is by 40 parts of modified urethane acrylates, 50 parts of magnesium fluoride, 1 part of 3-mercaptobutyric acid pentaerythritol ester, 2 parts of photoinitiator 184, 0.1 part of BKY-333, 40 parts of solvent butyl acetate, 60 parts of solvent ethyl acetate, the coating solution is coated on the surface of the anti-adhesion layer, after drying at ...

Embodiment 2

[0037] This embodiment provides a high-brightness anti-adhesion brightness enhancement film, comprising a substrate, a prism layer arranged on one side of the substrate and an anti-adhesion layer arranged on the other side of the substrate, and an anti-adhesion layer is provided on the side far away from the substrate. reflective layer. Wherein, the substrate is PET with a thickness of 188 μm; silicon dioxide particles with a particle size of 10 μm are dispersed in the anti-adhesion layer, and the coating thickness is 5 μm. The reflectivity of the anti-reflection layer is 2%, and its coating solution is composed of 30 parts of modified polyurethane acrylate, 60 parts of difluoromethacrylate, 10 parts of 3-mercaptobutyric acid pentaerythritol ester, and 8 parts of photoinitiated Agent 184, 0.5 parts of BKY-333, 40 parts of solvent butyl acetate, 60 parts of solvent ethyl acetate, the coating solution is coated on the surface of the anti-adhesion layer, dried at 80 ° C for 2 min...

Embodiment 3

[0039] This embodiment provides a high-brightness anti-adhesion brightness enhancement film, which includes a substrate, a prism layer arranged on one side of the substrate and an anti-adhesion layer on the other side, and an anti-reflection layer is provided on the side of the anti-adhesion layer away from the substrate. Wherein, the substrate is PET with a thickness of 188 μm; acrylic resin particles with a particle size of 5 μm are dispersed in the anti-blocking layer, and the coating thickness is 3 μm. The reflectance of the anti-reflection layer is 1%, and its coating solution is composed of 20 parts of modified polyurethane acrylate, 70 parts of hexafluorobutyl acrylate, 5 parts of 3-mercaptobutyric acid pentaerythritol ester, 5 parts of photoinitiator 184, 0.2 parts of BKY-333, 40 parts of solvent butyl acetate, 60 parts of solvent ethyl acetate, the coating solution is coated on the surface of the anti-adhesion layer, after drying at 80 ° C for 2 minutes, use 300mJ / cm...

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Abstract

The invention discloses a high-brightness anti-adhesion brightness enhancement film and a backlight module. The brightness enhancement film comprises a base material a prism layer arranged on one sideof the base material and an anti-adhesion layer arranged on the other side of the base material, wherein the side, which is away from the base material, of the anti-adhesion layer is provided with ananti-reflection layer. The anti-reflection layer is tightly attached to the anti-adhesion layer, thereby not only being capable of improving the utilization rate of light, reducing the light loss andimproving the brightness of the brightness enhancement film and the brightness of the backlight module, but also being capable of enabling the anti-reflection layer to have a concave-convex structureby the aid of the structure of the anti-adhesion layer and achieving the performance of being anti-adhesion.

Description

technical field [0001] The invention belongs to the technical field of brightness-enhancing films, and in particular relates to a high-brightness anti-sticking brightness-enhancing film and a backlight module. Background technique [0002] Liquid crystal display technology is an existing relatively mature display technology, and liquid crystal display is the most important device for displaying liquid crystal display technology. The liquid crystal itself does not emit light, and it needs to rely on the backlight module to provide sufficient brightness to realize the display of images. Therefore, the backlight module is one of the key components of the liquid crystal display. [0003] In the backlight module, when the light emitted by the general light source passes through the light guide plate and the diffusion film, and enters the brightness enhancement film (BEF), about 93% of the light enters the brightness enhancement film, and 7% of the light is reflected back. The l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/04G02B1/11G02B1/10G02F1/13357
Inventor 鞠久妹夏春苗
Owner ZHANGJIAGANG KANGDE XIN OPTRONICS MATERIAL