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Light guide plate, and backlight unit and display device including the same

A technology of backlight module and light guide plate, which is applied in the field of light guide plate, can solve the problems such as inability to guarantee light diffusivity and prominent hot spots, and achieve the effects of increasing the degree of scattering, increasing the degree of diffusivity, and suppressing light spots

Active Publication Date: 2016-05-11
NEWOPTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since this type of display device does not have the required diffusion sheet, it cannot ensure the diffusion of light, which in turn will cause the problem of prominent hot spots.

Method used

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  • Light guide plate, and backlight unit and display device including the same
  • Light guide plate, and backlight unit and display device including the same
  • Light guide plate, and backlight unit and display device including the same

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Embodiment Construction

[0053] Hereinafter, the light guide plate, the backlight module including the light guide plate, and the display device related to the embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0054] In addition, as long as there are identical or corresponding constituent elements with respect to any drawing symbols, the same or similar reference numerals may be cited, and repeated description thereof may be omitted. For convenience of description, the size or shape of each component shown in the drawings may be enlarged or reduced.

[0055] An embodiment of the present invention provides a light guide plate, which includes: a light-emitting surface emitting light to the outside; a reflective surface located on the back of the light-emitting surface; formed on at least one of the multiple sides connecting the light-emitting surface and the reflecting surface, and a light-incident surface for receiving light irradiated by a ...

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PUM

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Abstract

Provided are a light guide plate, and a backlight unit and a display device including the same. The light guide plate includes a body including a light output surface configured to output light, a reflective surface provided opposite the light output surface, and side surfaces provided between the light output surface and the reflective surface; and a plurality of dot pattern formed on a surface of the reflective surface, and the dot pattern includes a central embossed portion protruding to the outside of the reflective surface, a concave portion having a ring shape which surrounds the central embossed portion and recessed and formed in the reflective surface, and an outer embossed portion formed on an outer circumference surface of the concave portion and configured to protrude to the outside of the reflective surface.

Description

【Technical field】 [0001] The invention relates to a light guide plate, a backlight module containing the light guide plate and a display device, and more particularly relates to a light guide plate capable of improving light diffusion, a backlight module containing the light guide plate and a display device. 【Background technique】 [0002] The backlight module (BLU: BackLightUnit) is a kind of light source device that provides light to the back of the screen of the liquid crystal display device. It not only directly affects the brightness of the screen, color reproduction, viewing angle, brightness ratio, readability, etc. Quality, power consumption, product life and other parameters will also be affected, and the backlight module is a core component whose cost accounts for about 20% to 50% of the cost of the entire liquid crystal display device. [0003] Backlight modules can be roughly divided into direct-lit and edge-lit depending on the installation position of the light...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/00
CPCG02B6/002G02B6/003G02B6/0031G02B6/004G02B6/0043G02B6/0045G02B6/0055G02B6/0058G02F1/133606G02F1/133615G02F1/133607
Inventor 金东镕尹种文朴旼京
Owner NEWOPTICS
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