Planar lighting device with transmittance adjuster and...

Details Planar lighting device with transmittance adjuster and... Planar lighting device with transmittance adjuster and...

2006-12-22

2008-10-21

O'Shea, Sandra (Department: 2875)

Illumination

Display backlight

Lcd backlight

C362S029000, C349S064000

Reexamination Certificate

active

07438429

ABSTRACT:
The planar lighting device includes rod type light sources, a light guide plate having light guide plate blocks, each being formed of an integral assembly of at least two light guide plate units each having a rear surface with a groove formed to accommodate a rod type light source and a light exit surface that is away from the rear surface and which is for emitting the light from the light source and a transmittance adjuster unit that is provided on a side closer to the light exit surface, and which has a sheet type optical member capable of transmitting light and transmittance adjusters provided on at least one surface of the optical member. The transmittance adjusters at a position corresponding to a seam between adjacent light guide plate blocks are distributed at a different density than the transmittance adjusters at a position corresponding to a joint between adjacent light guide plate units.

REFERENCES:
patent: 6561663 (2003-05-01), Adachi et al.
patent: 6874900 (2005-04-01), Hsieh
patent: 6880947 (2005-04-01), Hsieh et al.
patent: 7059736 (2006-06-01), Yu et al.
patent: 7307676 (2007-12-01), Jeon
patent: 05-127156 (1993-05-01), None
patent: 06-235825 (1994-08-01), None
patent: 2001-042327 (2001-02-01), None

Affiliated with

Also associated with

Rating

Planar lighting device with transmittance adjuster and... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Planar lighting device with transmittance adjuster and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Planar lighting device with transmittance adjuster and... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3999395