Patent ID: 7413318
Filing Date: 2008-08-19
Classification: G02F

Abstract:
1. A direct type backlight module comprising: a substrate; a diffusion sheet disposed above the substrate; a plurality of spacers disposed between the substrate and the diffusion sheet, each spacer including: a bottom surface contacting with the substrate, a groove defined in the bottom surface; a light incident surface defined on an inner surface of the groove; a pair of wings disposed on two sides of the bottom surface for supporting the diffusion sheet, wherein each wing includes an outer side surface tapering downwardly and inwardly from the diffusion sheet to the substrate and an inner side surface facing only the diffusion sheet, the outer side surface is nearer to the substrate than the inner side surface, the inner side surface is nearer to the diffusion sheet than the outer side surface; and a transflective film formed on the inner side surfaces of the two wings; and a plurality of light sources correspondingly disposed in the grooves.