Light guide plate with trigonal recesses

Details Light guide plate with trigonal recesses Light guide plate with trigonal recesses

2005-02-08

2005-02-08

Sember, Thomas M. (Department: 2875)

Illumination

Illuminated scale or dial

C362S560000, C362S330000, C362S339000, C385S129000, C349S061000

Reexamination Certificate

active

06851815

ABSTRACT:
A backlight assembly for providing liquid crystal display enhanced brightness of light with a lower consumption of electricity includes a light guide plate having brightness enhancing recesses formed on a bottom surface and light collecting grooves formed on an upper surface. The brightness enhancing recesses efficiently reflect the light having different directions and the light collecting grooves collects the light reflected by the brightness enhancing recesses.

REFERENCES:
patent: 5050946 (1991-09-01), Hathaway et al.
patent: 5359691 (1994-10-01), Tai et al.
patent: 5668913 (1997-09-01), Tai et al.
patent: 5982540 (1999-11-01), Koike et al.
patent: 6454452 (2002-09-01), Sasagawa et al.

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