Backlight with light diffusion and brightness enhancement...

Details Backlight with light diffusion and brightness enhancement... Backlight with light diffusion and brightness enhancement...

2006-04-21

2008-08-12

Lee, Jong-Suk (James) (Department: 2885)

Illumination

Edge lighted panel

Light guide

C362S607000, C385S146000

Reexamination Certificate

active

07410287

ABSTRACT:
A backlight device (100) includes a light guide plate (110), a light source (130) arranged at a side face of the light guide plate, a lamp cover (140) surrounding the light source, a light reflection plate (120) arranged below the light guide plate, a light diffusion plate (150) arranged over the light guide plate, and a brightness enhancement plate (160) arranged over the light diffusion plate. The light diffusion plate has a first optical film (151) and a plurality of first bumps (152) formed thereon and extending outwardly and toward the light guide plate. The brightness enhancement plate has a second optical film (161) and a plurality of second bumps (162) formed thereon and extending outwardly and away from the light diffusion structure.

REFERENCES:
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patent: 6104530 (2000-08-01), Okamura et al.
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patent: 2002/0106830 (2002-08-01), Ohmi et al.
patent: 2003/0165693 (2003-09-01), Hartig et al.
patent: 2004/0027339 (2004-02-01), Schulz
patent: 2005/0007000 (2005-01-01), Chou et al.
patent: 2005/0024849 (2005-02-01), Parker et al.
patent: 2005/0059766 (2005-03-01), Jones et al.

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