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Reflection sheet and backlight module

A technology of backlight module and reflective sheet, which is applied in the field of reflective sheet, can solve the problems such as difficult control of PET film thickness, narrowing of PET film gap, and reduction of light reflection efficiency of reflective sheet

Inactive Publication Date: 2012-12-26
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Cutting the film in half, the film thickness of the cut PET film is not easy to control; and the flattening process tends to reduce the gaps in the PET film, reducing the light reflection efficiency of the reflective sheet

Method used

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  • Reflection sheet and backlight module
  • Reflection sheet and backlight module
  • Reflection sheet and backlight module

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] see figure 1 , which is a cross-sectional view of the backlight module 1 according to a preferred embodiment of the present invention. The backlight module 1 includes a light source module 12 , a backplane 14 and a reflective sheet 16 disposed between the light source module 12 and the backplane 14 . In this embodiment, the backlight module 1 is used to provide a surface backlight, such as the backlight required by a liquid crystal display. In practice, the light source module 12 usually includes a light source and a light guide plate, and the light guide plate is used to transmit and diffuse light emitted from the light source. light, the light source module 12 in figure 1 The part shown in is the light guide plate, but the present invention is not limited thereto. For example, in practical applications, the light source module of the present invention can also be a general light source directly. The back plate 14 can be a structural part of the backlight module 1 t...

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PUM

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Abstract

The invention discloses a reflection sheet and a backlight module with the reflection sheet. The reflection sheet comprises a first substrate and a second substrate. The first substrate comprises a first surface, and the first surface comprises a surface microstructure. The second layer comprises a second surface, the first substrate and the second substrate are combined by the first surface and the second surface, a plurality of gaps are formed between the first surface and the second surface by the surface microstructure. The first substrate or the second substrate is light permeable. Through the gaps such as formed between the first substrate and the second substrate in an air chamber, the light from the outside of the light permeable substrate into the reflection sheet can be reflected by an air medium surface, furthermore the whole reflection efficiency of the reflection sheet is improved.

Description

【Technical field】 [0001] The invention relates to a reflective sheet, in particular to a reflective sheet which can be used in a backlight module. 【Background technique】 [0002] In the backlight module, in order to improve the utilization rate of light, more reflective sheets are arranged on the light guide plate. Generally, the reflective sheet is mostly a single sheet on which a reflective paint is coated, or a colored sheet, such as a white polyethylene terephthalate (PET) film, is used directly. However, in actual use, light still passes through the reflective sheet, and the light is only reflected by the material properties, and the reflection efficiency still has an upper limit. Therefore, existing backlight modules use reflective sheets containing reflective particles or powders or reflective sheets containing voids to further improve light utilization. [0003] Regarding the aforementioned reflective sheet with voids, in practice, hard particles can be added to th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21V7/22F21S8/00
Inventor 陈嘉鸿赖政全林义文许畯珽
Owner AU OPTRONICS CORP
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