Backlight system and liquid crystal display using the same

Details Backlight system and liquid crystal display using the same Backlight system and liquid crystal display using the same

2005-12-13

2005-12-13

Kim, Robert H. (Department: 2871)

Liquid crystal cells, elements and systems

Particular structure

Particular illumination

C349S068000

Reexamination Certificate

active

06975370

ABSTRACT:
A backlight system (100) in accordance with the present invention includes a plurality of light sources (110) for emitting light beams and a light guide plate (120) for receiving the light beams emitted by the light sources. The light guide plate includes a light input surface (121) and a light output surface (122) joining the light input surface. The light input surface has a plurality of recesses (124) therein. The recesses have cylindrical surfaces, each having a specific curvature, and the light beams emitted by the light sources pass through the cylindrical surfaces orthogonally. Since nearly all of the light beams enter into the light guide plate with few being reflected at the light input surface, the backlight system is highly efficient in light utilization.

REFERENCES:
patent: 4673254 (1987-06-01), Kato et al.
patent: 5528709 (1996-06-01), Koike et al.
patent: 6661479 (2003-12-01), Taniguchi et al.
patent: 354654 (1999-03-01), None

Affiliated with

Also associated with

Rating

Backlight system and liquid crystal display using the same does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Backlight system and liquid crystal display using the same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Backlight system and liquid crystal display using the same will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3499572