Patent ID: 7793448
Filing Date: 2010-09-14
Classification: G09F

Abstract:
1. A display module, comprising: a first light guide plate comprising a first light output surface, a first bottom surface opposite to the first light output surface, and a first light input surface adjoining the first light output surface and the first bottom surface; a first light shielding sheet disposed above the first light output surface of the first light guide plate; a first light source positioned adjacent to the first light input surface of the first light guide plate; a second light shielding sheet disposed under the first light guide plate; a second light guide plate disposed under the second light shielding sheet, the second light guide plate comprising a second light output surface, a second bottom surface opposite to the second light output surface, and a second light input surface adjoining the second light output surface and the second bottom surface; and a second light source positioned adjacent to the second light input surface of the second light guide plate, wherein the first and second light sources emit different color light; the first light shielding sheet defines a first light transmitting pattern, the second light shielding sheet defines a second light transmitting pattern according to the first light transmitting pattern, and an area of the second light transmitting pattern is less than that of the first light transmitting pattern.