Backlight device, light guide plate and display device

Abstract

The invention discloses a backlight device, a light guide plate and a display device. According to the embodiment of the invention, the backlight device is composed of a light source, a light guide plate and a plastic frame. The light source is used for emitting light to the light guide plate and is arranged at one end, being opposite to the lateral surface of the light guide plate, of the light guide plate. The plastic frame is at least arranged at one end, away from the light source, of the light guide plate. A plurality of toothed recesses are arranged at one end, away from the light source, of the upper surface of the light guide plate. According to the backlight device provided by the embodiment of the invention, because of multiple toothed recesses arranged at one side, approaching the plastic frame, of the light guide plate, light reflected by the side wall of the plastic frame is refracted or reflected and thus the light is emitted from the upper surface of the light guide plate or to the lower surface of the light guide plate, so that light leakage from the space between the light guide plate and the plastic frame and thus light edge leakage and shining problems of the backlight device are solved.

Description

technical field [0001] The present invention relates to the technical field of display screens, in particular to a backlight source device, a light guide plate and a display device. Background technique [0002] With the advancement and development of technology, liquid crystal display modules tend to have a higher screen-to-body ratio and a narrower frame design, such as mobile phones and tablet computers. In the related art, the design of the narrow frame usually adopts a white plastic frame, so that part of the light is diffusely reflected on the white plastic frame, which leads to the formation of a brighter area on the edge of the light guide plate, resulting in poor brightness problems such as light leakage of the liquid crystal display module. Contents of the invention [0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a backlight device, which can reduce edge br...

AI Technical Summary

Problems solved by technology

In the related art, the design of the narrow bezel usually uses a white plastic frame, so that part of the light is diffusely reflected at the white plastic frame, which in turn leads to a brighter area on the edge of the light guide plate, resulting in poor brightness problems such as light leakage of the liquid crystal display module.

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