Backlight module for eliminating shadows

Abstract

The invention discloses a backlight module for eliminating shadows and aims to ensure lugs of an optical film and other areas thereof are uniform in brightness. The backlight module comprises a light guide plate, a plastic frame and the optical film; the bottom of the light guide plate is provided with a reflector; the light guide plate is provided with a light source arranged on one side of the plastic frame; the light guide plate is mounted below the plastic frame; the edge of the plastic film is provided with the lugs; the top of the plastic frame is provided with a groove; the optical film is fitted to the plastic frame through the lugs and the groove; the groove is provided with two ribs used for positioning the optical film; an opening is formed between the ribs; the plastic frame is provided with a plurality of light holes in the groove; the optical film is provided with a reflecting slope corresponding to the light holes; the reflecting slope inclines to the opening. The backlight module has the advantages that strength and uniformity of light entering the lugs is improved, the brightness of the light coming out of the opening at the lugs is kept consistent to that of the light from the other areas of the optical film, and the shallows at the lugs of the optical film are lessened.

Description

technical field [0001] The invention relates to the related technical field of displays, in particular to a backlight module for eliminating dark shadows. Background technique [0002] With the continuous advancement of science and technology, the technology of liquid crystal display is becoming more and more mature. With the continuous development of backlight module technology, the combination of light guide plate and optical film has greatly overcome many problems that are difficult to solve in traditional optics, and thus has been widely promoted. Both the light guide plate and the optical film are placed on the plastic frame of the display, wherein the light guide plate is placed on the lower side of the plastic frame, and the optical film is placed on the upper side of the plastic frame. The light guide plate can convert point light sources into surface light sources , to realize the display function of the display, and the optical film is to further make the light un...

AI Technical Summary

Problems solved by technology

This invention changes the opaque characteristics of the traditional plastic frame through the light guide hole provided at the bearing recess of the plastic frame, so that the backlight can pass through the plastic frame and be transmitted to the surface of the optical film, which is beneficial to improve the lug of the optical film. The brightness at the place, but the disadvantage of this invention is that the light entering the lug of the optical film through the light guide hole cannot go to other areas of the optical film very well, so that the connection between the lug of the optical film and the optical film cannot be guaranteed. The brightness of other areas of the diaphragm is uniform, which cannot solve the technical problem of the shadow of the hanging ear

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