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A bondable silver-plated reflective film and a light guide plate

A technology of reflective film and light guide plate, applied in the field of reflective film, can solve the problems of inability to achieve, inconvenient to assemble, reduce the thickness of the backlight module, etc. Effect

Active Publication Date: 2019-05-24
NINGBO CHANGYANG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The use of silver-plated reflective film can improve the reflectivity of the reflective film, but in the assembly process, the silver-plated reflective film is placed under the light guide plate, and there is an air layer between the light guide plate and the reflective film, which cannot reduce the thickness of the backlight module. purpose and not easy to assemble

Method used

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  • A bondable silver-plated reflective film and a light guide plate
  • A bondable silver-plated reflective film and a light guide plate
  • A bondable silver-plated reflective film and a light guide plate

Examples

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preparation example Construction

[0036] The preparation method of the silver-plated reflective film provided by the invention comprises the following steps:

[0037] (1) prepare polyester film layer;

[0038] (2) Place a 99.99% silver target in the target material of the vacuum sputtering chamber to ensure that the vacuum degree of the sputtering chamber is less than 1×10 - 2 Pa, Ar gas is used as the sputtering gas, and the Ar gas pressure is 0.5 Pa, and the silver-plated layer is deposited on the above-mentioned polyester film layer.

[0039] (3) Coating UV glue on the surface of the silver-plated layer, pressing the film through a dot roller, and curing by UV light to obtain a viscous protective layer with a dot microstructure. The peeling force of the protective layer is 300-500g / 25mm.

[0040] The luminance of the reflective film obtained in the embodiment uses a Foster BM-7 luminance meter, installs the reflective film on a 32-inch light side-entry backlight module, and divides the light-emitting sur...

Embodiment 1

[0046] The present invention provides a bondable silver-plated reflective film, wherein the reflective film sequentially includes a polyester film layer, a silver-plated layer and an adhesive protective layer with dot microstructures. The protective layer uses polyurethane acrylate UV glue. Among them, the thickness of the polyester film layer is 125 μm, the thickness of the silver-plated layer is 1 μm, and the thickness of the protective layer is 12 μm. The diameter of the circular dots of the protective layer is 100 μm, and the dots are distributed in a matrix. The distance between the dots is 0.5 mm. The relative performance of the obtained silver-plated reflective film in the backlight module was tested by using the Foster BM-7 luminance meter, and the results are shown in Table 1.

Embodiment 2

[0048]The present invention provides a bondable silver-plated reflective film, wherein the reflective film sequentially includes a polyester film layer, a silver-plated layer and an adhesive protective layer with dot microstructures. The protective layer uses polyurethane acrylate UV glue. Among them, the thickness of the polyester film layer is 125 μm, the thickness of the silver-plated layer is 1 μm, and the thickness of the protective layer is 16 μm. The diameter of the circular dots of the protective layer is 200 μm, and the dots are distributed in a matrix. The distance between the dots is 0.8 mm. The relative performance of the obtained silver-plated reflective film in the backlight module was tested by using the Foster BM-7 luminance meter, and the results are shown in Table 1.

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Abstract

The invention relates to the technical field of reflective films, in particular to a bondable silver-plated reflective film applied to side-entry backlight modules and a light guide plate. In order to reduce the thickness of the existing side-type backlight module, the present invention provides a silver-plated reflective film and a light guide plate that can be bonded. The reflective film comprises a polyester film layer, a silver-plated layer and a protective layer in turn; the silver-plated layer is located on the upper surface of the polyester film layer, and the protective layer is located on the upper surface of the silver-plated layer; the protective layer has network points microstructure, the protective layer is adhesive. The silver-plated reflective film provided by the invention has higher reflectivity, does not significantly affect the luminance of the backlight module and reduces the thickness of the backlight module after laminating the light guide plate.

Description

technical field [0001] The invention relates to the technical field of reflective films, in particular to a bondable silver-plated reflective film applied to side-entry backlight modules and a light guide plate. Background technique [0002] The backlight module is mainly composed of reflective film, light guide plate, diffusion film and brightness enhancement film, and its development trend tends to be lighter and thinner on the basis of improving its performance. At present, the reflective film is generally a porous white polyester film placed under the light guide plate, and generally, it is difficult to continue to improve after the reflectance of the white reflective film reaches 97%. In order to fully scatter the light, the light guide plate has a protruding dot structure on the side facing the reflective film. The use of silver-plated reflective film can improve the reflectivity of the reflective film, but in the assembly process, the silver-plated reflective film is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B5/08G02F1/13357G02B6/00
CPCG02B5/0808G02B6/0011G02F1/133605
Inventor 金亚东张克然谷文翠
Owner NINGBO CHANGYANG TECH