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Zonal light-emitting backlight module

A technology of backlight module and light strip, applied in the direction of optics, light guide, electric light source, etc., can solve problems such as offset, high bit accuracy requirements, and inability to achieve optical effects, etc., to achieve the effect of reducing the drop

Active Publication Date: 2012-07-25
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the assembly process of the assembled light guide assembly is cumbersome and requires high alignment accuracy. Even if the assembly is good, it may cause deviation due to external force, and the expected optical effect cannot be achieved.
[0007] Due to the visual effect of the above-mentioned light leakage and the luminance and chromaticity drop caused by the light gap, it will affect the viewer's perception of the image

Method used

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  • Zonal light-emitting backlight module
  • Zonal light-emitting backlight module
  • Zonal light-emitting backlight module

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0067] Below in conjunction with accompanying drawing, structural principle and working principle of the present invention are specifically described:

[0068] The invention relates to a backlight module, in particular to a backlight module comprising a plurality of stacked light guide plates with a microstructure layer arranged on the light guide plates. The backlight module of the present invention generates a plurality of light-emitting blocks by using the microstructure layers on the light-guiding plates and reduces the difference in luminance and chromaticity between the light-emitting blocks.

[0069] figure 2 Shown is an exploded view of the backlight module 100 of the present invention. Such as figure 2 As shown, the backlight module 100 may include a reflector 110, a first light guide plate 200, a first light source group 300, a second light guide plate 400, and a second light source group 500, wherein the first light source group 300 and the second light source g...

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PUM

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Abstract

The invention discloses a zonal light-emitting backlight module, which comprises a first light guide plate and a second light guide plate, wherein the bottoms of the two light guide plates respectively comprise a first lower structural layer and a second lower structural layer. The first lower structural layer comprises a first main light-emitting band and a first minor light-emitting band, wherein the first main light-emitting band is located between the first minor light-emitting band and a side end of the first light guide plate. The second lower structural layer comprises a second main light-emitting band and a second minor light-emitting band, wherein the second main light-emitting band is located between the second minor light-emitting band and a side end of the second light guide plate. The first lower structural layer exposes the second main light-emitting band in a projection area of the second lower structural layer, and the second main light-emitting band is at least partially overlapped with the second minor light-emitting band.

Description

technical field [0001] The invention relates to a backlight module, in particular to a backlight module which comprises a plurality of light guide plates and is provided with a microstructure layer on the light guide plates. Background technique [0002] Display panels and flat display devices using display panels have become the mainstream of various display devices. Among them, the liquid crystal display panel is the most prominent technology of the current flat-panel display device, and is widely used in various panel display screens, flat-screen TVs for home use, flat-panel monitors for personal computers and laptop computers, and display screens for mobile phones and digital cameras. and other electronic products. [0003] The backlight module (Back Light Module) is one of the key components in the current liquid crystal display panel. Since the liquid crystal itself does not emit light, the function of the backlight module is to provide sufficient brightness and even...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/13357F21S8/00F21V8/00F21V17/00F21V19/00F21V13/00
Inventor 陈明伦萧登昆
Owner AU OPTRONICS CORP