Light guide plate and backlight system using the same

Details Light guide plate and backlight system using the same Light guide plate and backlight system using the same

2005-04-26

2005-04-26

Quach-Lee, Y. My (Department: 2875)

Illumination

Revolving

C362S026000

Reexamination Certificate

active

06883925

ABSTRACT:
A backlight system (10) in accordance with the present invention includes a light guide plate (20) and two light sources (30) disposed adjacent opposite sides of the light guide plate. The light guide plate includes two incident surfaces (21), a light exit surface (22) and a bottom surface (24) opposite to the light exit surface. The bottom surface has a plurality of diffusion units (23) therein, and a reflective film (241) thereon. Diffusion surfaces (25) of the plurality of the diffusion units cooperate with each other to form a curved face for directing light beams to be output from the light exit surface in a predetermined angular range.

REFERENCES:
patent: 3043947 (1962-07-01), Albinger, Jr.
patent: 5775791 (1998-07-01), Yoshikawa et al.
patent: 6443583 (2002-09-01), Ha
patent: 6508564 (2003-01-01), Kuwabara et al.
patent: 6601984 (2003-08-01), Yamamoto et al.

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