Backlight system and light guide plate used therein

Details Backlight system and light guide plate used therein Backlight system and light guide plate used therein

2007-03-27

2007-03-27

O'Shea, Sandra (Department: 2875)

Illumination

Edge lighted panel

Light modifier with emission face combined with light guide...

C362S600000, C362S615000, C385S146000

Reexamination Certificate

active

10665995

ABSTRACT:
A backlight system (300) includes a light guide plate (3024), a reflection plate (3023), a light source (3021) disposed at one side of the light guide plate, a diffusion plate (3025) and a reflection polarizer (3027), which allows light polarized in one certain direction to pass, and reflects light polarized in a direction perpendicular to said one certain direction. The diffusion plate, the light guide plate, the diffusion plate, and the reflection polarizer are stacked up one on top of the other. A plurality of prisms (11) are disposed on a surface of the diffusion plate, thereby defining a plurality of V-shaped grooves (not labeled).

REFERENCES:
patent: 5668913 (1997-09-01), Tai et al.
patent: 5835661 (1998-11-01), Tai et al.
patent: 6027222 (2000-02-01), Oki et al.
patent: 6445504 (2002-09-01), Suga et al.
patent: 6497946 (2002-12-01), Kretman et al.
patent: 6576887 (2003-06-01), Watson et al.
patent: RE38305 (2003-11-01), Gunjima et al.
patent: 6671452 (2003-12-01), Winston et al.
patent: 6822711 (2004-11-01), Yoshida et al.

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