Patent ID: 8496368
Filing Date: 2013-07-30
Classification: G02B

Abstract:
1. A light guide plate, adapted to a backlight module, the backlight module comprising at least one light emitting device capable of emitting a light beam, the light guide plate comprising: a light emitting surface; a surface opposite to the light emitting surface; a light incident surface connected with the light emitting surface and the surface, wherein 90 percent or more of the surface is flat, the at least one light emitting device is disposed beside the light incident surface, the light incident surface is capable of making the light beam enter the light guide plate, and the light emitting surface is capable of making the light beam transmit outside the light guide plate; and a plurality of microstructures disposed on the light emitting surface, wherein the microstructures comprise protruding dots and a ratio of a height of the protruding dots in a direction perpendicular to the light emitting surface to a width of the protruding dots in a direction parallel to the light emitting surface is between 0.1 and 0.5.