Light guide plate and backlight module
A backlight module and light guide plate technology, applied in the direction of light guide, optics, optical components, etc., can solve the problems of reducing the luminance and light leakage of the backlight module 10
Active Publication Date: 2016-11-30
珠海晨新科技有限公司
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Problems solved by technology
However, when light enters the wedge-shaped light incident portion 21 from the light source 30 and passes to the inclined surface 23, part of the light will leak out from the inclined surface 23, thereby causing light leakage and reducing the brightness of the backlight module 10.
Method used
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[0014] see Figure 2 to Figure 3 , which discloses a backlight module 100 according to a preferred embodiment of the present invention. The backlight module 100 includes a light guide plate 50 and a plurality of light sources 60 installed adjacent to one side of the light guide plate 50 . In this embodiment, the light source 60 is an LED, and the light guide plate 50 is made of plastic. The light guide plate 50 includes a wedge-shaped light incident portion 51 adjacent to the light source 60 and a plate-shaped effective visible portion 52 away from the light source 60 . The wedge-shaped light incident part 51 and the effective visible part 52 are integrally formed and have a common bottom surface 53. The effective visible part 52 has an illuminating surface 54 opposite to the bottom surface 53. The light incident surface 55 , the inclined surface 56 opposite to the light incident surface 55 and connected to the effective visible part 52 , and the connecting surface 57 connect...
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A backlight module includes a light guide plate and a plurality of light sources. The light guide plate includes a wedge-shaped light incident portion and a plate-shaped effective visible portion adjacent to the wedge-shaped light incident portion, the wedge-shaped light incident portion and the effective visible portion have a common bottom surface, and the wedge-shaped light incident portion The thickness is greater than the thickness of the effective visible part, the wedge-shaped light incident part has a light incident surface perpendicular to the bottom surface, and a slope opposite to the light incident surface and connected to the effective visible part, and the effective visible part has a On the illuminating surface opposite to the bottom surface, a plurality of V-shaped grooves for reducing light leakage on the slope are arranged on the slope. Multiple light sources are arranged adjacent to the light incident surface. Since the V-shaped groove is arranged on the inclined surface of the present invention, the incident angle of the light rays reaching the inclined surface is increased, and the light leakage on the inclined surface is reduced or eliminated. The invention also discloses a light guide plate used in the backlight module.
Description
technical field [0001] The invention relates to a backlight module. Background technique [0002] Now, electronic products, especially consumer electronic products, are developing in the direction of light, thin and small. For this reason, various components of electronic products are also developing towards miniaturization. Such as figure 1 A thin backlight module 10 is shown. The thin backlight module 10 includes a light guide plate 20 and a light source 30 installed adjacent to one side of the light guide plate 20 . The light guide plate 20 includes a wedge-shaped light incident portion 21 adjacent to the light source 30 and a plate-shaped effective visible portion 22 away from the light source 30 . The thickness of the wedge-shaped light incident portion 21 is greater than the thickness of the effective viewing portion 22 . The wedge-shaped light incident portion 21 includes a slope 23 connected to the effective visible portion 22 , and the effective visible portion ...
Claims
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IPC IPC(8): G02B6/00
Inventor 余泰成林大为
Owner 珠海晨新科技有限公司