Light-emission control circuit

Details Light-emission control circuit Light-emission control circuit

2004-07-12

2008-09-09

Hjerpe, Richard (Department: 2629)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C349S062000

Reexamination Certificate

active

07423626

ABSTRACT:
Light-emitting parts are attached to a light guide plate of a backlight unit so as to be illuminated by the backlight. A measuring unit formed by light-receiving parts is provided on the opposite side of the light guide plate. The measuring unit detects the luminance or color tone of light inside the light guide plate. A control unit subjects the luminance or color tone to feedback control in accordance with a result of measurement.

REFERENCES:
patent: 6344641 (2002-02-01), Blalock et al.
patent: 6507159 (2003-01-01), Muthu
patent: 6674060 (2004-01-01), Antila
patent: 6801177 (2004-10-01), Kudo et al.
patent: 6888528 (2005-05-01), Rai et al.
patent: 6975369 (2005-12-01), Burkholder
patent: 7022960 (2006-04-01), Yamamoto et al.
patent: 7108413 (2006-09-01), Kwong et al.
patent: 2004/0004437 (2004-01-01), Shimizu et al.
patent: 2004/0027325 (2004-02-01), Suwa et al.
patent: 2005/0035939 (2005-02-01), Akiyama
patent: 08-313879 (1996-11-01), None
patent: 2000-180850 (2000-06-01), None
patent: 2002-149135 (2002-05-01), None
patent: 2003-005714 (2003-01-01), None
patent: 2004-029141 (2004-01-01), None
patent: 2004-184852 (2004-02-01), None
patent: 2004-193029 (2004-07-01), None
patent: 2004-317558 (2004-11-01), None
patent: 2004-361618 (2004-12-01), None
Japanese Office Action dated Nov. 29, 2005.
Chinese Office Action for Application No. 200410076864.8 dated Feb. 2, 2007 with English translation.

Affiliated with

Also associated with

Rating

Light-emission control circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Light-emission control circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Light-emission control circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3978479