Apparatus and method for luminance adjustment of plasma...

Details Apparatus and method for luminance adjustment of plasma... Apparatus and method for luminance adjustment of plasma...

2005-11-18

2009-12-15

Mengistu, Amare (Department: 2629)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C345S063000, C345S690000

Reexamination Certificate

active

07633466

ABSTRACT:
A luminance adjustment apparatus for a plasma display panel (PDP) is proposed. The luminance adjustment apparatus includes a luminance controller, a gray level shifter and a power controller. The luminance controller outputs a gray level shifting signal and a power adjustment signal. The gray level shifter receives a first luminance video signal and the gray level shifting signal, after the first luminance video signal being level shifted according to the gray level shifting signal, a gray level shifted video signal is output. The power controller is used to receive the gray level shifted video signal and the power adjustment signal, after the gray level shifted video signal being power adjusted by the power adjustment signal, a sub-field controlling signal is output. This enables the preservation of image gradation when adjusting luminance of a video image.

REFERENCES:
patent: 5757343 (1998-05-01), Nagakubo
patent: 6380943 (2002-04-01), Morita et al.
patent: 6794824 (2004-09-01), Song et al.
patent: 2001/0006378 (2001-07-01), Kasahara et al.
patent: 2002/0126139 (2002-09-01), Kuriyama et al.
patent: 2002/0140640 (2002-10-01), Watanabe
patent: 2003/0058476 (2003-03-01), Kwon et al.
patent: 2003/0173903 (2003-09-01), Takeuchi et al.
patent: 2004/0008216 (2004-01-01), Onozawa et al.
patent: 2004/0183755 (2004-09-01), Kim
patent: 2004/0212565 (2004-10-01), Ide
patent: 1424706 (2003-06-01), None

Affiliated with

Also associated with

Rating

Apparatus and method for luminance adjustment of plasma... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus and method for luminance adjustment of plasma..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for luminance adjustment of plasma... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4113725