Patent ID: 9599830
Date: 2017-03-21
CPC Classifications: G02B,G09G,H04N

Claim:
1. A light source module, adapted to provide a first illumination beam to a display apparatus, wherein the display apparatus comprises a display panel configured to display a two-dimensional image or a three-dimensional image, and the light source module comprising: a first wedge-shaped light guide plate, having a first light incident surface and a second light incident surface opposite to the first light incident surface, wherein the first wedge-shaped light guide plate further comprises an optical grating pattern, the optical grating pattern is formed on a surface of the first wedge-shaped light guide plate and functions as a parallax bather, and the surface is connected to the first light incident surface and the second light incident surface; a first light emitting device, disposed beside the first light incident surface of the first wedge-shaped light guide plate; a second light emitting device, disposed beside the second light incident surface of the first wedge-shaped light guide plate; and a light source driving module, adapted to turn on the first light emitting device for providing the first illumination beam to the first wedge-shaped light guide plate in a two-dimensional image display mode, and to turn on only the second light emitting device for providing the first illumination beam to the first wedge-shaped light guide plate in a three-dimensional image display mode, wherein widths of the first light incident surface and the second light incident surface of the first wedge-shaped light guide plate along a specific direction are respectively S