Lateral light source module
A light source module and side-type technology, which is applied in the field of side-type light source modules, can solve the problem of insufficient smoothness of the image edge, and achieve the effect of smoothing the image edge and improving the smoothness.
Active Publication Date: 2012-06-20
AU OPTRONICS CORP
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Problems solved by technology
[0005] The invention provides a side-type light source module, which can solve the problem that the edge of the image is not smooth enough in the sub-area lighting technology of the direct-type backlight module
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[0025] figure 1 is a schematic diagram of a side-type light source module according to an embodiment of the present invention. Figure 2A yes figure 1 A schematic diagram of the first side light source device in the side light source module of . Figure 2B yes figure 1 A schematic diagram of the second side light source device in the side light source module of . Please also refer to figure 1 , Figure 2A as well as Figure 2B , the side light source module 10 of this embodiment has a light exit surface 50 , and the light exit surface 50 has at least one middle light exit area 30 and at least one edge light exit area 20 .
[0026] The above side light source module 10 includes a first side light source device 100 and a second side light source device 200 , and the second side light source device 200 and the first side light source device 100 are stacked together. In other words, the second side light source device 200 can be stacked on the first side light source device...
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The invention discloses a lateral light source module. The lateral light source module is provided with a light emitting surface which is provided with at least one intermediate light emitting region and at least one marginal light emitting region. The lateral light source module comprises a first lateral light source device and a second lateral light source device; light rays generated by the first lateral light source device are emitted from the intermediate light emitting region, the second lateral light source device and the first lateral light source device are stacked together, and light rays generated by the second lateral light source device are emitted from the marginal light emitting region; when the intermediate light emitting region is a luminous region with the luminance value of L1, the marginal light emitting region adjacent to the luminous region is a light leakage region with the preset luminance value of L2, and the compensatory luminance value of the light leakage region meets the condition that L2'=L2-(L1*k1*R1), wherein k1 is larger than or equal to 0 and less than or equal to 1, and R1 is larger than or equal to 20% and less than or equal to 60%; and when themarginal light emitting region is a luminous region with the luminance value of L3, the intermediate light emitting region adjacent to the luminous region is a light leakage region with the preset luminance value of L4, the compensatory luminance value of the light leakage region meets the condition that L4'=L4-(L3*k2*R2), wherein k2 is larger than or equal to 0 and less than or equal to 1, and R2 is larger than or equal to 10% and less than or equal to 50%.
Description
technical field [0001] The invention relates to a side-type light source module, and in particular to a side-type light source module for a liquid crystal display. Background technique [0002] Since the liquid crystal display panel does not have the function of emitting light, a backlight module (backlight module) must be disposed under the liquid crystal display panel to provide a side light source so that the liquid crystal display panel can achieve the purpose of displaying. Generally speaking, backlight modules can be divided into side-type backlight modules and direct-type backlight modules. [0003] With the gradual development of liquid crystal displays towards larger sizes, some people have cut the direct-lit backlight module into M×N blocks, and according to the image content of each block, the backlight corresponding to each block The brightness is adjusted, that is, the local dimming technology to improve the contrast ratio of the picture. [0004] However, the...
Claims
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IPC IPC(8): F21S8/00F21V19/00F21V8/00G02F1/13357
Inventor 陈明伦许浩中刘文杰杨智裕
Owner AU OPTRONICS CORP