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Backlight module

A technology of backlight module and light source, which is applied in optics, electric light source, nonlinear optics, etc., and can solve the problems of uneven brightness and darkness on the sides of liquid crystal displays and different degrees of light leakage on the sides

Inactive Publication Date: 2012-08-15
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a backlight module, so as to solve the problem that the side of the common backlight module has different degrees of light leakage, resulting in uneven brightness and darkness of the sides of the liquid crystal display.

Method used

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Examples

Experimental program
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Embodiment Construction

[0054] Please refer to figure 1 , figure 1 It is a schematic diagram of a structure applied to a screen display according to an embodiment of the present invention. The backlight module 10 of this embodiment can be arranged in a screen display 9 to serve as a backlight for the image display area 8 of the screen display 9 . Wherein, the screen display 9 is just an example, and the backlight module 10 of the present invention can be applied to a display of an LCD TV, a notebook computer, a desktop computer, a mobile phone or a tablet computer, but is not limited thereto.

[0055] Please also refer to Figure 2A to Figure 2C , Figure 2A is a schematic structural diagram of a backlight module according to an embodiment of the present invention, Figure 2B is a structural side view of a backlight module according to an embodiment of the present invention, Figure 2C It is a front view of a backlight module according to an embodiment of the present invention.

[0056] The bac...

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PUM

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Abstract

A backlight module comprises the following components: a light guide plate, a first light source and an optical film. The light guide plate comprises a first light inlet surface and a light outlet surface. The first light source is configured on the first light inlet surface. The optical film comprises a substrate layer and a first light shield layer. The substrate layer is equipped on the light outlet surface. The substrate layer is provided with a first end and a second end that is connected with the first end. The second end is substantially parallel with the first light inlet surface. An effective light outlet area and an invalid light outlet area are defined on the substrate layer. The first light shield layer is equipped on the invalid light outlet area. The first light shield layer is provided with a first edge and a second edge. The first edge faces the first end. The second edge faces the effective light outlet area. The space between the first end and the second edge is defined to a first width. The first width substantially reduces in a direction that is far from the second end.

Description

technical field [0001] The invention relates to a backlight module, in particular to a backlight module with a light-shielding structure. Background technique [0002] The rapid progress of the multimedia society is mostly benefited from the rapid development of semiconductor devices or display devices. As far as display components are concerned, cathode display tubes (or called image tubes, Cathode Ray Tube, CRT) have been monopolizing the display market due to their excellent display quality and economy. However, CRT-type displays have the problems of being too large and consuming too much energy. For the requirements of high image quality, low power consumption, thin mass production, low-voltage drive, and small size, CRT-type displays are obviously unable to achieve this. Require. In view of this point, Liquid Crystal Display (LCD for short) will have great advantages, and LCD has been widely used in medium and small portable TVs, video phones, camcorders, notebook com...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S8/00F21V13/00G02F1/13357
Inventor 林毅凡
Owner AU OPTRONICS CORP