Patent ID: 9121975
Filing Date: 2015-09-01
Classification: G02B

Abstract:
1. A backlight module, comprising: a light source, comprising a light emitting surface; and a light guide plate, disposed at a side of the light source and comprising a light incident surface, a first surface, and a second surface, wherein the second surface is opposite to the first surface, and the light incident surface is connected to the first surface and the second surface and includes a first curved surface and a second curved surface, wherein the first curved surface is adjacent to the first surface, the second curved surface is adjacent to the second surface, the first curved surface is a concave surface, the first curved surface is disposed obliquely above the second curved surface, a thickness throughout the entire light guide plate is substantially uniform, the light emitting surface of the light source is opposite to both of the first curved surface and the second curved surface of the light incident surface of the light guide plate, a height of the light source is larger than a distance between the first surface and the second surface, and the light emitting surface of the light source is obliquely disposed at a position corresponding to the light incident surface of the light guide plate.