Surface light source and light guide plate having color filter

Details Surface light source and light guide plate having color filter Surface light source and light guide plate having color filter

2007-01-23

2007-01-23

Dudek, James A. (Department: 2871)

Liquid crystal cells, elements and systems

Particular structure

Particular illumination

C349S106000

Reexamination Certificate

active

10750024

ABSTRACT:
A surface light source (30) has a light source (23), and a light guide plate (20) for introducing light beams from the light source out. The light guide plate includes an incident surface (211) for introducing light beams in; an emitting surface (214) for uniformly transmitting light beams out; and a bottom surface (212) opposite to the emitting surface for reflecting the light beams in directions toward the emitting surface. Furthermore, a color filter (22) is provided and disposed on the emitting surface of the light guide plate, which has a color layer (222) for a full color display.

REFERENCES:
patent: 4924356 (1990-05-01), French et al.
patent: 5211463 (1993-05-01), Kalmanash
patent: 6104446 (2000-08-01), Blankenbecler et al.
patent: 6649952 (2003-11-01), Sawada
patent: 2005/0046321 (2005-03-01), Suga et al.

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