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Backlight structure

A technology of backlight structure and light guide plate, applied in optics, nonlinear optics, identification devices, etc., can solve the problems of reducing light efficiency, increasing cost, and increasing the production process of light mixing plate

Inactive Publication Date: 2005-10-26
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this patent, although the display area of ​​the light-emitting surface can be effectively enlarged, the light efficiency of the light is reduced because the light must first pass through the light mixing plate, and the manufacturing process of the light mixing plate must be increased.
thus increasing the cost of manufacturing

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Please refer to Figure 2A , which shows a three-dimensional view of the backlight structure of the first embodiment of the present invention. The backlight structure 200 of the liquid crystal display includes a light guide plate 202 , a first reflection sheet 206 , a first light source group 204 a and a second light source group 204 b. The light guide plate 202 has a first groove 208 a and a second groove 208 b respectively located on two sides of the bottom of the light guide plate 202 . The first reflection sheet 206 is disposed under the light guide plate 202 and extends to the first groove 208a and the second groove 208b, so that the first groove 208a and the second groove 208b respectively form a first light mixing area and a second light mixing area. Area. A first cantilever 211 a and a second cantilever 211 b are formed above the first groove 208 a and the second groove 208 b. And the first cantilever 211 a and the second cantilever 211 b are located below th...

Embodiment 2

[0018] Please refer to image 3 , image 3 A side view of the backlight structure of the second embodiment is shown. The backlight structure has a first light source group 304a and a second light source group 304b, but different from the first embodiment, in the second embodiment, the lower surface 317 of the first cantilever 311a and the second cantilever 311b of the backlight structure 300 is Forming an inclined plane can also achieve the effect of the first embodiment. In this embodiment, the configuration of cantilever outlets can also be omitted. The configuration of the cantilever dots can directly make the uniform light on the inclined surface appear light, if not configured, the light can be directly uniformly emitted from the inclined surface by adjusting the slope of the inclined surface.

Embodiment 3

[0020] Please refer to Figure 4 , Figure 4 A side view of the backlight structure of the third embodiment is shown. Different from the first embodiment and the second embodiment, the backlight structure 400 of the third embodiment is only configured with a cantilever 411 on the light guide plate 402. In this embodiment, the first light source group 404 is arranged on one or both sides of the backlight structure. The light is mixed in the first groove 408 , and the light to be mixed enters the light guide plate 402 , so that uniform light is emitted from the light guide plate 402 .

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PUM

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Abstract

The invention discloses a backlight structure, comprising light guide plate, first light source group and first reflecting board, where the light guide board is provided with a first groove on one side of the bottom, the first reflecting plate is arranged below the light guide board and extends to the first groove to make the first groove form a first light mixing region, and the first light source group is arranged on one side of the light guide board, corresponding to the first groove.

Description

technical field [0001] The invention relates to a backlight structure, in particular to a liquid crystal display backlight structure. Background technique [0002] Please refer to figure 1 , figure 1 A schematic diagram showing the light mixing of the traditional backlight structure. In the backlight structure 100 of an edge-lit liquid crystal display, the backlight is generally composed of several light source arrangements, such as a light source group composed of a light source 8 , a light source 9 and a light source 10 . The light source is, for example, a light emitting diode, the light source 8 is, for example, a red light emitting diode, the light source 9 is, for example, a green light emitting diode, and the light source 10 is, for example, a blue light emitting diode. Because the backlight of the liquid crystal display needs to be uniform light, the light can enter the substrate of the liquid crystal display from the light-emitting surface 7, so the light provide...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1335
Inventor 刘邦炫高克嘉
Owner AU OPTRONICS CORP