Light guide plate main body, light guide plate, backlight, and liquid crystal display device

A light guide plate and optical component technology, applied in water supply devices, optics, nonlinear optics, etc., can solve the problems of difficult to obtain durable performance, complex structure, high manufacturing cost, etc.

Inactive Publication Date: 2006-05-10
SUMITOMO CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] have as Figure 8 The liquid crystal display device with the configuration shown in the figure adopts a configuration with a filter for improving brightness and a prism-type film, so there are problems such as a complex structure that makes manufacturing efficiency low, and a relatively large number of parts that makes manufacturing cost high.
In addition, it is difficult to obtain good durability

Method used

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  • Light guide plate main body, light guide plate, backlight, and liquid crystal display device
  • Light guide plate main body, light guide plate, backlight, and liquid crystal display device
  • Light guide plate main body, light guide plate, backlight, and liquid crystal display device

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Embodiment Construction

[0063] A liquid crystal display device as an embodiment of the present invention is shown in figure 1 middle. exist figure 1 In , reference numeral 1 denotes a liquid crystal display device. The liquid crystal display device 1 can include a liquid crystal display element 60 , a light guide plate 70 , and a light source unit 160 . The light guide plate 70 and the light source unit 160 constitute an edge-illuminated back-illuminated light module 5 .

[0064] The liquid crystal display element 60 can be composed of a liquid crystal cell 2 and polarizing plates 3 and 4 . Polarizing plates 3 and 4 are disposed on the upper and lower sides of the liquid crystal cell 2, respectively.

[0065] At the lower surface side of the polarizing plate 4 located on the lower side of the liquid crystal display element 60, a light guide plate 70 is provided. The light guide plate 70 may have a light guide plate main body 10 , a polarization separation component 11 and a polarization direct...

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Abstract

The invention provides a light guide plate member (10) which has a light transmitting surface (51) and a bottom surface (52) corresponding to the light transmitting surface (51). The bottom surface (52) is provided with grooves or / and ridges (23), each groove or ridge (23) having a triangular cross section and being formed with a slanted surface (24) and the light transmitting surface (51). The slanted surface (24) and the light transmitting surface (51) forms a cross angle (acute angle) 2 which is set in between 39.5-47.5 degrees.

Description

technical field [0001] The invention relates to a main body of a light guide plate, a light guide plate, a back-illuminated light assembly, and a liquid crystal display device composed of these components. Background technique [0002] If for example, the liquid crystal display device known in the prior art can be as Figure 8 As shown, a pair of polarizing plates 102 and 103 are arranged on the upper and lower surfaces of the liquid crystal display element 101 , and a backlighting light assembly is also arranged on the lower side of the lower polarizing plate 103 . For liquid crystal display devices that are mostly used in notebook computers, etc., in order to achieve thinner and lower power consumption, edge-illuminated backlight components are usually used as the aforementioned backlight components. [0003] Such edge-lit backlit components can typically be obtained as Figure 8 As shown, the light beam collected by the reflector 107 and given by the light source 111 is g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1335
CPCE02D29/121E03F5/021E03F2005/028
Inventor 中塚木代春善甫康成
Owner SUMITOMO CHEM CO LTD
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