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Backlight assembly of liquid crystal displayer

A technology for liquid crystal displays and backlight components, which is applied to instruments, optics, nonlinear optics, etc., can solve the problems of poor flatness of reflective films and thick thickness of backlight modules, and achieves the effect of reducing thickness, good flatness, and reducing shadow phenomenon.

Inactive Publication Date: 2017-06-30
NINGBO CHANGYANG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems of poor flatness of the existing reflective film and thicker backlight module, the invention provides a backlight assembly of a liquid crystal display

Method used

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  • Backlight assembly of liquid crystal displayer
  • Backlight assembly of liquid crystal displayer
  • Backlight assembly of liquid crystal displayer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] The invention provides a backlight assembly of a liquid crystal display, the backlight assembly sequentially includes a light guide plate, an adhesive layer and a reflective film; the reflective film is bonded to the light guide plate through the adhesive layer; the light guide plate One surface has dots embedded in the adhesive layer.

[0053] During the preparation process, the organic solvent ethyl ester was added to the polyurethane-modified acrylic pressure-sensitive adhesive for dilution until the solid content of the adhesive was 30%; then the adhesive was coated on the reflective film DJX 300 (Ningbo Longyang Technology Co., Ltd.) on the surface, the wet film thickness is 11.5 μm; then put the reflective film coated with glue in an 80-degree oven to dry, and evaporate the solvent; finally, paste the above-mentioned dried reflective film on the dots of the light guide plate Surface, through the laminating machine (to ensure uniform contact between the adhesive la...

Embodiment 2

[0055] The backlight assembly provided in Example 1, wherein the wet film thickness is 14 μm. The material of the light guide plate is polymethyl methacrylate (PMMA), the thickness of the light guide plate is 4 mm, and the height of dots is 8 μm.

Embodiment 3

[0057] The backlight assembly provided in Example 1, wherein the wet film thickness is 16 μm.

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Abstract

The invention relates to a liquid crystal displayer, in particular to a backlight assembly capable of realizing a thin-type liquid crystal displayer, and provides a backlight assembly of the liquid crystal displayer to solve the problems that an existing reflecting film is poor in flatness, and a backlight module is thick. The backlight assembly sequentially comprises a light guide plate, an adhesive layer and a reflecting film, the reflecting film and the light guide plate adhere together through the adhesive layer, lattice points are formed in one surface of the light guide plate, and the adhesive layer is embedded into the lattice points. The brilliancy of the backlight module using the backlight assembly is not reduced, the umbra phenomenon is relieved, the thickness of the liquid crystal displayer is reduced, and the thinning tendency of the liquid crystal displayer is realized.

Description

technical field [0001] The invention relates to a liquid crystal display, in particular to a backlight assembly for realizing a thin liquid crystal display. Background technique [0002] A backlight module of a liquid crystal display (LCD) generally includes a transparent light guide plate LGP and a reflective layer under the LGP. Among them, the reflective film in the backlight market is usually a sheet structure, such as commonly used reflective layers such as white reflective film made of PET, multi-layer reflective film and silver reflective sheet. [0003] Currently, commonly used backlight structures such as figure 1 As shown, there are printed dots 12 on the light guide plate 11, and the reflective film 13 and the back plate 14 are located on the lower side of the light guide plate in turn. The back plate 14 is used to fix the backlight assembly, which accounts for more than half of the thickness of the entire backlight module. There is an air layer between the cove...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13357
CPCG02F1/133605G02F1/133606
Inventor 金亚东张克然赵琼琼
Owner NINGBO CHANGYANG TECH
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