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

A light guide plate and main body technology, applied in the field of light guide plate, light guide plate main body, and back-illuminated light components, can solve the problems of low manufacturing efficiency, large number of parts, and difficulty in obtaining durable performance

Inactive Publication Date: 2009-05-06
SUMITOMO CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] A liquid crystal display device having a structure as shown in FIG. 8 adopts a structure having a brightness-enhancing filter and a prism-type film, so there are problems such as a complex structure that lowers manufacturing efficiency, and a relatively large number of parts that makes manufacturing cost high. question
In addition, it is difficult to obtain good durability

Method used

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

Examples

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Embodiment Construction

[0063] A liquid crystal display device as an embodiment of the present invention is shown in FIG. 1 . In FIG. 1, 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 direction conversion compon...

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Abstract

The light guide plate main body 10 has a light emitting face 51 and a bottom face 52 facing a light emitting face 51, and grooves and / or protrusions having triangular cross section are formed on the bottom face 52. The crossing angle (acute angle) of the slanted face 24 constructing the grooves and / or protrusions and the light emitting face 51 is set within a range of 39.5[deg.] to 47.5[deg.].

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, a liquid crystal display device known in the prior art can be shown in FIG. 8, a pair of polarizing plates 102, 103 are disposed on the upper and lower sides of the liquid crystal display element 101, and at the same time, a polarizing plate 103 on the lower side A backlighting light assembly is also disposed on the lower side. 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] This kind of edge-illuminated back-illuminated light assembly can generally be shown in FIG. Ways to implement lighting. At the bottom surface of the lig...

Claims

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Application Information

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Patent Type & Authority Patents(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