Backlight module and liquid crystal display device
A technology of backlight module and light source, applied in the direction of light guide, optics, optical components, etc., can solve the problems of display needs, weak light intensity, unsatisfactory light brightness, etc., and achieve the effect of meeting the needs of large size and high display quality
Inactive Publication Date: 2015-08-12
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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Problems solved by technology
However, the intensity of light emitted from the light emitting surface on the side adjacent to the light source is stronger, and the intensity of light emitted from the light emitting surface on the side away from the light source is weaker.
With the development of large-size display panels for liquid crystal display devices, there is a large difference in brightness between the light-emitting surface of the part with stronger light and the light-emitting surface of the part with weaker light, and even the brightness of the light emitted from the light-emitting surface of the part with weaker light Can not meet the normal display needs
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[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0018] Please also refer to figure 1 and figure 2 , figure 1 It is a structural schematic diagram of a backlight module in a preferred embodiment of the present invention; figure 2 It is a top view of a backlight module in a preferred embodiment of the present invention. The backlight module 10 includes a substrate 110 , at least two light guide plates 120 , a light source 130 and a diffusion plate 140 . The light guide plate 120 is arranged on the same ...
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The invention provides a backlight module and a liquid crystal display device. The backlight module comprises a substrate, at least two light guide plates, a light source and a diffusion plate. The light guide plates are arranged on the same surface of the substrate, and a tilt angle is formed between the light guide plates and the substrate. The light guide plate comprises a first side face, a second side face, a light out surface and a bottom surface. The first side face and the second side face are oppositely arranged. The light out surface and the bottom surface are oppositely arranged. The light out surface and the bottom surface intersect with the first side face and the second side face respectively. The first side face is adjacent to the light source and is used as the light in surface of the light guide plate. The diffusion plate is adjacent to the light out surface of the light guide plate, and a preset distance is arranged between the diffusion plate and the most adjacent part of the light guide plate to the diffusion plate.
Description
technical field [0001] The invention relates to the field of plane display, in particular to a backlight module and a display device. Background technique [0002] As a common display device, a liquid crystal display device (Liquid Crystal Display, LCD) is favored by users because of its low power consumption, small size, and light weight. A liquid crystal display device generally includes a backlight module and a display panel, and the backlight module is used to provide a light source for the display panel. Usually, the backlight module is a side-light type. This backlight module includes a light guide plate and a light source arranged on one or more sides of the light guide plate. The light emitted from the light source passes through the light guide plate. The diffusion effect is emitted from the light emitting surface of the light guide plate to provide light for the display panel. However, the intensity of light emitted from the light emitting surface on the side adj...
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IPC IPC(8): G02B6/00G02F1/13357
CPCG02B6/0078G02B6/0043G02B6/0051G02B6/0055G02B6/0088G02B6/009G02B6/0035G02F1/133606G02F1/133608
Inventor 樊勇
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD