Light guide plate, and backlight unit and display device including the same
A technology of backlight module and light guide plate, applied in the field of light guide plate, can solve the problems of aggravating hot spots and unable to guarantee the light diffusivity, and achieve the effect of improving hot spots and increasing the degree of scattering or diffusivity.
Active Publication Date: 2016-05-11
NEWOPTICS
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Problems solved by technology
In particular, as consumer demand for ultra-thin display products is increasing, in order to keep pace with this trend, active research is being carried out to minimize the number of diffusers mounted on the rear of the display panel from about 3 to 5, but this This type of display products may have the following problems, such as the aggravation of hot spots due to the inability to guarantee the light diffusion degree originally responsible for the diffusion sheet
Method used
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[0046] Next, a light guide plate, a backlight module including the light guide plate, and a display according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
[0047] In addition, no matter what the reference symbols are, the same or similar reference symbols will be given to the same or corresponding components and repeated descriptions will be omitted. For the convenience of description, the size and shape of each shown component will be enlarged or zoom out.
[0048] In one aspect of the present invention, the present invention provides a light guide plate, which includes: a light-emitting surface, which is used to output light to the outside; a reflective surface, which is located on the back of the light-emitting surface; On at least one of the sides of the light emitting surface and the reflecting surface and receiving the incident light irradiated by the light source; and a reflection pattern, which has ...
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The invention relates to a light guide plate, a backlight unit and a display device including the same. The present invention relates to a light guide plate and a display device including the same. According to one aspect of the present invention, the light guide plate has a pair of principal surfaces and side surfaces connecting the principal surfaces. The light guide surface includes: a light incident surface provided on at least one surface among the side surfaces and receiving light from a light source; a light outputting surface provided on one surface among the principal surfaces and outputting the light incident from the light source; a reflecting surface provided on the other surface of the principal surfaces and having a unit area corresponding to pixels of the display panel and providing a plurality of pattern candidate spots; and a reflecting pattern formed in the pattern candidate spots randomly selected as many as the number of patterns assigned in the unit area among the pattern candidate spots of the unit area.
Description
technical field [0001] The invention relates to a light guide plate, a backlight module and a display including the light guide plate. More specifically, the present invention relates to a light guide plate with improved light diffusion, a backlight module and a display including the light guide plate. Background technique [0002] Backlight module (BLU:BackLightUnit) refers to a kind of light source device located behind the screen of the liquid crystal display and used to provide light, which not only directly affects the brightness, color reproduction, viewing angle, contrast, readability and other image quality of the image And power consumption, product life, etc., and its price also accounts for about 20-50% of the total unit price of liquid crystal displays, so it is a core component. [0003] According to the arrangement of light sources, backlight modules can be roughly divided into direct-lit and edge-lit. The direct-lit backlight module uses the light emitted fr...
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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