Light guide plate with W-shaped structures and backlight...

Details Light guide plate with W-shaped structures and backlight... Light guide plate with W-shaped structures and backlight...

2007-11-13

2007-11-13

Nelms, David (Department: 2871)

Liquid crystal cells, elements and systems

Particular structure

Particular illumination

C349S065000

Reexamination Certificate

active

11518730

ABSTRACT:
An exemplary light guide plate (31) includes a light incident surface (310), a light output surface (312) adjacent to the light incident surface, and a bottom surface (313) opposite to the light output surface. The bottom surface includes a plurality of W-shaped structures (314) thereat. With such configuration, the output light beams can be concentrated to make the intensity distribution of the output light beams to be even. A backlight module employing the light guide plate is also provided.

REFERENCES:
patent: 5771328 (1998-06-01), Wortman et al.
patent: 6633722 (2003-10-01), Kohara
patent: 2006/0146227 (2006-07-01), Park et al.

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