Curved backlight module
A backlight module and curved technology, applied in optics, nonlinear optics, instruments, etc., can solve problems such as uneven brightness of images, achieve concentrated light direction, improve uneven brightness of images, and reduce usage
Inactive Publication Date: 2016-04-06
AU OPTRONICS CORP
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Problems solved by technology
[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to propose a curved backlight module applied to a display device, in order to solve the problem of uneven brightness of the image presented by the display device
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[0048] Please refer to figure 2 , figure 2 It is a schematic cross-sectional view of a curved backlight module according to a preferred embodiment of the present invention. The curved backlight module 200 is used in a curved display device (not shown). The curved backlight module 200 includes a light guide plate 210, a light source 221, a second light source 222, a plurality of light guide structures 230, a diffusion sheet 240 and a reflector. 250 pieces. The light source 221 is disposed on one side of the light guide plate 210 , and the second light source 222 is disposed on the other side of the light guide plate 210 , and the second light source 222 is disposed opposite to the light source 221 . Wherein the light guiding structure 230 is in figure 2 The sizes in are slightly exaggerated for illustrative purposes.
[0049] Please refer to image 3 and Figure 4 , image 3 It is a partially enlarged view of a curved backlight module in a preferred embodiment of the ...
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The invention relates to a curved type backlight module, which is used for a display device. The curved type backlight module comprises a light guiding plate a light source and a plurality of light guiding structures. The light guiding plate comprises an emergent light surface, a reflecting surface and an incident light surface, the emergent light surface is opposite to the reflecting surface, the incident light surface is sandwiched between the emergent light surface and the reflecting surface and arranged on the edge of the light guiding plate, and the emergent light surface and the reflecting surface are curved surfaces. The light source faces the incident light surface. The light guiding structures are distributed on one side of the light guiding plate and adjacent to the reflecting surface, wherein the light guiding structures comprise light guiding surfaces, an inclination angle is formed between the light guiding surface and the reflecting surface, and an included angle is formed between the tangent plane and the horizontal plane of the reflecting surface, and the angle of the inclination angle is corresponded to the angle of the included angle.
Description
【Technical field】 [0001] The present invention relates to a backlight module, and in particular to a curved backlight module. 【Background technique】 [0002] Existing display devices using a liquid crystal panel as a display core all need to have a backlight module, and the backlight module will generate a surface light source for displaying images on the liquid crystal panel. Generally speaking, the display device and its backlight module are planar, but in order to meet the needs of specific occasions, such as display or entertainment, the display device is designed to be curved. Correspondingly, the curved LCD panel needs to have a curved shape. type backlight module in order to produce a uniform surface light source. [0003] Please refer to figure 1 , figure 1 It is a schematic cross-sectional view of a known curved backlight module, the curved backlight module 100 includes a light guide plate (LightGuidePlate, LGP) 110, a light source 121, a second light source 122,...
Claims
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IPC IPC(8): G02F1/13357
Inventor 谢尚玮廖述珀
Owner AU OPTRONICS CORP