Light guide plate and backlight module

Abstract

The invention relates to a light guide plate which comprises a light-emergent face, a bottom face, a light-incident face and a side face. The bottom face and the light-emergent face are oppositely arranged. The light-incident face and the side face are oppositely arranged and respectively connected with the light-emergent face and the bottom face. The bottom face is divided into a plurality of rectangular blocks in the direction from the light-incident face towards the side face, wherein the rectangular blocks are parallel to the light-incident face in the length direction, and the areas of the rectangular blocks are the same. A plurality of lattice points are evenly arranged inside each block in a protruding mode. In the blocks close to the side face, in the direction from the light-incident face towards the side face, the density of the lattice points inside each block is gradually increased, and the difference value between the densities of the lattice points of every two adjacent blocks is also gradually increased. The brightness of the light-emergent face of the light guide plate is even. The invention further relates to a backlight module, wherein the light guide plate is used in the backlight module.

Description

technical field [0001] The invention relates to a light guide plate and a backlight module, in particular to a light guide plate adopting side lighting and a backlight module applied thereto. Background technique [0002] A backlight module in the prior art includes a light source and a light guide plate. The light source is arranged on the light incident surface of the light guide plate, and the light guide plate guides the transmission direction of the light emitted by the light source, and converts the line light source or the point light source into a surface light source to emit. However, due to the different paths of the light emitted by the light source in the light guide plate, bright lines are generated on the light-emitting surface of the light guide plate where the light is concentrated, and dark lines are generated on the position where the light is less, thus making the brightness distribution of the light-emitting surface uneven. . Contents of the invention ...

AI Technical Summary

Problems solved by technology

However, due to the different paths of the light emitted by the light source in the light guide plate, bright lines are generated on the light-emitting surface of the light guide plate where the light is concentrated, and dark lines are generated on the position where the light is less, thus making the brightness distribution of the light-emitting surface uneven.

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