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Backlight module and diffuse transmission module thereof

A backlight module and scattering element technology, applied in optics, nonlinear optics, instruments, etc., can solve problems such as uneven distribution of light and dark, achieve uniform light distribution, enhance the effect of light source scattering, and increase the effect of light source spacing

Active Publication Date: 2008-02-06
AU OPTRONICS CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is to provide a scattering module for a backlight module, so that the linear density of dots can evenly disperse the light transmittance of the light source on the display panel, and solve the problem of uneven distribution of light and dark in the prior art

Method used

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  • Backlight module and diffuse transmission module thereof
  • Backlight module and diffuse transmission module thereof
  • Backlight module and diffuse transmission module thereof

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Embodiment Construction

[0044] The first embodiment of the present invention is a backlight module 5 , the cross-sectional view of which is shown in FIG. 5 . The backlight module 5 includes a brightness enhancement film (brightness enhancement film, BEF) 50, a diffuser sheet (diffuser sheet, DS) 52, a diffuser plate (diffuser plate, DP) 54, a diffusion module 51, a plurality of from top to bottom. A light source 53 and a reflector 56 . The scattering module 51 includes a plurality of scattering elements. In this embodiment, the plurality of scattering elements are a plurality of dots 51a, which are arranged under the diffuser plate 54; and the plurality of light sources 53 are light-emitting diodes, which are arranged on the reflection plate 56 relative to the scattering elements; in other words , a plurality of light sources 53 are disposed on one side of the scattering module 51 .

[0045] A top view of the reflection plate 56 and the light source 53 of the backlight module 5 is shown in FIG. 6 , w...

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Abstract

The present invention discloses a dispersion module and a backlight module containing the dispersion module. A light source is arranged at one side of the dispersion module, and the light source comprises a first light source, a second light source, and a third light source. The second light source is positioned on a first direction of the first light source, a first space is defined between the first and the second light sources; the third light source is positioned on a second direction of the first light source, a second space is defined between the third light source and the first light source; wherein the first space is less than the second space, and the first direction is different from the second direction. The dispersion module includes a plurality of dispersion components, which parallel to the first and the second directions to form respectively a first linear array compaction and a second linear array compaction, the first linear array compaction is less than the second linear array compaction. Therefore light produced by the backlight module projects evenly on a display panel without happening the uneven distributing of brightness and darkness by adopting the present invention.

Description

technical field [0001] The invention relates to a scattering module and a backlight module including the cooling module, in particular to a scattering module structure which can make the brightness of the backlight module more uniform without uneven distribution of light and dark on the display panel. Background technique [0002] Liquid crystal display is a display device with full-color display technology developed by using liquid crystal. Because it has the advantages of power saving, low radiation, small space, light weight, etc., and has considerable flexibility in size, it is widely used in digital cameras, personal The application of liquid crystal displays can be seen in digital assistants (personal digital assistant, PDA) and televisions and other electronic products with display screens. On the other hand, the difference between a liquid crystal display and a conventional cathode ray tube display device is that the liquid crystal of the liquid crystal display does ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13357G02F1/1335
Inventor 蔡卲瑜林佑撰
Owner AU OPTRONICS CORP
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