Patent Number: 7,611,262

Title: Optical plate with light diffusion layer and backlight module using the same

Abstract: An exemplary optical plate (20) includes a transparent plate (21) and a light diffusion layer (22). The transparent plate includes a light output surface (212), a light input surface (211) opposite to the light output surface, and a plurality of spot-shaped recessed portions (213) formed on the light input surface. The light diffusion layer is coated on the spot-shaped recessed portions. A backlight module using the optical plate is also provided, a plurality of point light sources of which being positioned in one-to-one correspondence with the spot-shaped recessed portions. The backlight module using the optical plate can have a thin body with a good optical performance.

Inventors: Chang; Shao-Han (Taipei Hsien, TW)

Assignee: Hon Hai Precision Industry Co., Ltd.

International Classification: F21V 5/00 (20060101)

Expiration Date: 1/03/02017