Backlight module and liquid crystal display device
A backlight module and backplane technology, applied in optics, nonlinear optics, instruments, etc., can solve the problem of failure of optical film, backlight module emits white light, etc., and achieves the effect of reducing failure, prolonging service life, and improving use efficiency.
Pending Publication Date: 2022-02-08
SHENZHEN SKYWORTH RGB ELECTRONICS CO LTD
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Problems solved by technology
[0005] In view of the above deficiencies in the prior art, the object of the present invention is to provide a backlight module and a liquid crystal display device, aiming to solve the problem that the heat generated by the light source leads to the failure of the optical film and affects the normal emission of white light from the backlight module
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[0028] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is a part of embodiments of the present invention, but not all embodiments. 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.
[0029] In the prior art, with the development and wide application of liquid crystal display devices, consumers have higher requirements for the color reproduction of liquid crystal display devices, that is, the requirements for color gamut values are getting higher and higher. An important part of the liquid crystal display device, usually by ...
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Abstract
The invention discloses a backlight module and a liquid crystal display device. The backlight module comprises a back plate structure, a light guide plate, a middle frame, a blocking piece structure and a light source. The edge of the back plate structure is bent to form a side wall; the light guide plate is arranged in the middle of the back plate structure; the middle frame is arranged on the side wall, and the middle frame extends to the position above the light emitting surface on the light guide plate; the blocking piece structure is arranged on the middle frame and located between the middle frame and the light guide plate; the back plate structure, the middle frame, the light guide plate and the blocking piece structure form a closed inner cavity; and the light source is arranged in the closed inner cavity and used for emitting light to the light guide plate. According to the backlight module, the closed inner cavity is formed, heat generated when the light source works cannot be conducted to the light emitting face of the light guide plate, and therefore the quantum dot diaphragm arranged above the light emitting face of the light guide plate is protected, and the backlight module normally emits white light.
Description
technical field [0001] The invention relates to the technical field of semiconductor display, in particular to a backlight module and a liquid crystal display device. Background technique [0002] At present, with the continuous development of liquid crystal display technology, the application fields of liquid crystal displays, especially color liquid crystal displays, are also constantly expanding. Driven by the liquid crystal display (Liquid Crystal Display, LCD for short) market, the backlight industry presents a scene of prosperity. The common LCD is a non-luminescent display device, which needs a backlight module to achieve the display function, so the performance of the backlight module will directly affect the image quality of the LCD. At present, there are mainly two types of backlights: side-lit and direct-lit. The side-lit backlight module is mainly composed of backplane, light source, light guide plate, optical film, middle frame, front frame and other components...
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IPC IPC(8): G02F1/13357
CPCG02F1/1336G02F1/133628
Inventor 朋朝明刘德柱邹文聪陈伟雄文勇兵肖梦哲周辉
Owner SHENZHEN SKYWORTH RGB ELECTRONICS CO LTD