LIGHT GUIDE PLATE ,LIGHT SOURCE MODULE AND DISPLAY DEVICE

摘要

A light guide plate and a light source module are provided. Light guide plate includes a main body and microstructures disposed on the main body. The main body includes a light-incident surface and a light-emitting surface. Each of the microstructures includes a first optical surface, a second optical surface, a third optical surface and a fourth optical surface. The first optical surface and the second optical surface are inclined in relation to the light-incident surface. A first angle is included between the first optical surface and the light-emitting surface. A second angle is included between the second optical surface and the light-emitting surface. The third optical surface and the fourth optical surface connect the first optical surface and the second optical surface. A third angle is included between the third optical surface and the light-emitting surface. A fourth angle is included between the fourth optical surface and the light-emitting surface.

主权项

1. A light guide plate, comprising:
a main body comprising a first light-incident surface, a second light-incident surface and a light-emitting surface, wherein the light-emitting surface is connected to the first light-incident surface and the second light-incident surface; and a plurality of first microstructures disposed on the light-emitting surface, wherein each of the first microstructures comprises:
a first optical surface which is inclined in relation to the first light-incident surface and is connected to the light-emitting surface, wherein a first angle is included between the first optical surface and the light-emitting surface; anda second optical surface which is inclined in relation to the first light-incident surface and is connected to the light-emitting surface, wherein a second angle is included between the second optical surface and the light-emitting surface, wherein the smaller one of the first angle and the second angle faces towards the first light-incident surface, and the greater one of the first angle and the second angle faces away from the first light-incident surface; a plurality of second microstructures disposed on the light-emitting surface, wherein each of the second microstructures comprises:
a third optical surface which is inclined in relation to the second light-incident surface and is connected to the light-emitting surface, wherein a third angle is included between the third optical surface and the light-emitting surface; anda fourth optical surface which is inclined in relation to the second light-incident surface and is connected to the light-emitting surface, wherein a fourth angle is included between the fourth optical surface and the light-emitting surface, wherein the smaller one of the third angle and the fourth angle faces towards the second light-incident surface, and the greater one of the third angle and the fourth angle faces away from the second light-incident surface;wherein a length, a width and a height of the first microstructures and the second structures are smaller than that of the main body.