Backlight module

Abstract

A backlight module, comprising: a back panel (2), a light guide plate (4) arranged in the back panel (2), a light bar (6) arranged on one side of the light guide plate (4), a side reflector sheet (8) arranged on the side of the light guide plate (4) away from the light bar (6) and four corner components (10) arranged between the back panel (2) and the light guide plate (4), wherein the corner components (10) are made of a rubber material, and the surface of each of the corner components (10) facing the light guide plate (4) is white. The side reflector sheet (8) is arranged between two corner components (10), and the length of the side reflector sheet (8) is smaller than or equal to the distance between two corner components (10) so that the side reflector sheet (8) and the corner components (10) are separately arranged. By means of the backlight module, by separately arranging the side reflector sheet (8) and the corner components (10) used for locating the light guide plate (4), the phenomenon that the light guide plate (4) is separated from the side reflector sheet (8) due to the friction generated between the side reflector sheet (8) and the corner components (10) in the prior art is avoided, and then the corner light leakage of the backlight module due to the fact that the light guide plate (4) is separated from the side reflector sheet (8) is avoided, thereby guaranteeing the light-emitting intensity and the illumination uniformity of the backlight module and improving the quality of the backlight module.

Description

technical field [0001] The invention relates to the field of liquid crystal display, in particular to a backlight module capable of preventing corner light leakage. Background technique [0002] A liquid crystal display (LCD, Liquid Crystal Display) has many advantages such as a thin body, power saving, and no radiation, and has been widely used. Most of the liquid crystal display devices currently on the market are backlight liquid crystal displays, which include a liquid crystal panel and a backlight module. The working principle of the LCD panel is to place liquid crystal molecules between two parallel glasses. There are many small vertical and horizontal wires between the two glasses. The direction of the liquid crystal molecules is controlled by electrifying or not, and the light from the backlight module is refracted out to produce picture. Since the liquid crystal panel itself does not emit light, the light source provided by the backlight module is needed to displa...

AI Technical Summary

Problems solved by technology

When the light guide plate 500 is affected by the change of cold and hot temperature, it will expand and contract, which will cause back and forth friction between the side reflector 900 and the rubber block 700, which will easily cause the side reflector 900 and the light guide plate 500 to separate at the corners, resulting in Light leakage from the corner of the backlight module

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