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Backlight module and liquid crystal display device

A technology for a liquid crystal display device and a backlight module, which is applied to lighting devices, fixed lighting devices, components of lighting devices, etc., can solve problems such as insufficient display brightness.

Inactive Publication Date: 2013-04-03
ACER INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: in order to make up for the deficiencies of the prior art, provide a backlight module and a liquid crystal display device, which can use an external light source to increase the intensity of the backlight, and solve the problem of insufficient display brightness in the prior art when used outdoors

Method used

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  • Backlight module and liquid crystal display device
  • Backlight module and liquid crystal display device
  • Backlight module and liquid crystal display device

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Embodiment Construction

[0025] see figure 1 and figure 2 , figure 1 It is a schematic diagram of a liquid crystal display device 1 according to a preferred embodiment of the present invention, wherein in this embodiment, the liquid crystal display device 1 is a screen of a notebook computer, but the present invention is not limited thereto; figure 2 is a liquid crystal display device along the figure 1 Schematic cross-sectional view of the middle line X-X. In order to simplify the drawing, the hatching is not shown, and in order to highlight the configuration of each component, the cross-sectional proportion of the components in the figure is exaggerated. The liquid crystal display device 1 mainly includes a backlight module 12 and a liquid crystal panel 14 . The backlight module 12 includes a light guide plate 122 , a semi-reflective film 124 , a diffusion film 126 , a back cover 128 and a light source module 130 . The liquid crystal display device 1 further includes a front cover 16 , which i...

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PUM

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Abstract

The invention discloses a backlight module and a liquid crystal display device with the backlight module. The backlight module comprises a light guide plate, a semi-reflective film and a back shell, wherein the light guide plate is provided with a light emitting face and a reflecting face opposite to the light emitting face; the semi-reflective film is arranged on the reflecting face; and the back shell is provide with a transparent part and is arranged close to the reflecting face to keep the transparent part opposite to the semi-reflective film. Thus, external light can penetrate through the back shell and the semi-reflective film to enter the light guide plate to enhance the intensity of output light of the light guide plate, so that the intensity of the output light of the backlight module is enhanced by utilizing ambient light, and the display brightness during outdoor use is improved.

Description

technical field [0001] The invention relates to a backlight module and a liquid crystal display device, in particular to a backlight module capable of using external light and a liquid crystal display device thereof. Background technique [0002] At present, most displays adopt liquid crystal display technology, so a backlight module is required to provide the required backlight. Generally, the backlight module can only use its own light source as the backlight. When used indoors, because the external light source is mostly indoor lighting sources, such as fluorescent lamps, the intensity of the backlight provided by the aforementioned backlight module is still sufficient to provide users with a display screen with sufficient brightness. . However, when a liquid crystal display device such as a notebook computer is used outdoors, since the external light source is sunlight, once sunlight hits the screen, the sunlight reflected by the screen makes it impossible for the user ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S8/00F21V13/00G02F1/13357
Inventor 林永森庄子龙
Owner ACER INC
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