Patent Number: 7,085,460

Title: Light guide plate with diffusion dots having scattering particles and surface light source unit incorporating the light guide plate

Abstract: A surface light source unit (2) includes a light source (21), a light guide plate (22), a reflective plate (23) and a diffusing plate (24). The light guide plate includes a light incidence surface (221) adjacent to the light source for receiving light beams, an emission surface (222) for emitting the light beams, a light reflection surface (223) opposite to the emission surface and a plurality of diffusion dots (224) formed on the light reflection surface. The diffusion dots contain a plurality of light scattering particles (225) having substantially global surfaces. The surface light source unit provides high uniform illumination for a liquid crystal display panel.

Inventors: Leu; Charles (Fremont, CA), Chen; Ga-lane (Fremont, CA), Lin; Michael (Tu-Chen, TW), Liu; Ming-Hsuan (Tu-Chen, TW), Yu; Tai-Cheng (Tu-Chen, TW)

Assignee: Hon Hai Precision Ind. Co., Ltd.

International Classification: G02B 6/04 (20060101)

Expiration Date: 8/01/02018