Light guide plate and backlight module

Abstract

The invention relates to a light guide plate. The light guide plate comprises a light emergence surface, a bottom surface, a light incidence surface and a side face. The bottom surface and the light emergence surface are arranged oppositely. The light incidence surface and the side face are arranged oppositely, and both are connected with the light emergence surface and the bottom surface. The bottom surface has a plurality of rectangular blocks whose length direction is parallel to the light emergence surface and which has equal areas. A plurality of net points are uniformly distributed in each rectangular block. In a direction toward the side face from the light incidence surface, the plurality of rectangular blocks are sorted, so that each rectangular block has a sequence number, the number of the net points of the plurality of rectangular blocks gradually increases as the sequence number of the plurality of rectangular blocks increases, and the number of the net points of rectangular blocks between the first rectangular block and the last rectangular block satisfies the formula: a=(a<i-1>+a+a<i+1>) / 3, wherein i is the sequence number of each rectangular block, N is the number of the rectangular blocks, and both i and N are natural numbers. The invention also relates to a backlight module using the light guide plate.

Description

technical field [0001] The invention relates to a light guide plate and a backlight module. Background technique [0002] The current backlight module 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, because most of the light emitted by the light source travels in the same path in the light guide plate, most of the light is concentrated on some parts of the light-emitting surface of the light guide plate, and the light quantity of other parts of the light-emitting surface is relatively small, so that the light-emitting surface The brightness distribution is not uniform. Contents of the invention [0003] In view of this, it is necessary to provide a light guide plate with uniform br...

AI Technical Summary

Problems solved by technology

However, because most of the light emitted by the light source travels in the same path in the light guide plate, most of the light is concentrated on some parts of the light-emitting surface of the light guide plate, and the light quantity of other parts of the light-emitting surface is relatively small, so that the light-emitting surface uneven brightness distribution

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