Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2008-07-22
2008-07-22
Mengistu, Amare (Department: 2629)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C345S075200, C345S074100
Reexamination Certificate
active
10817838
ABSTRACT:
Provided is a source driver circuit for an active matrix electroluminescent (EL) display including a digital-to-analog converter/ramp circuit for converting a digital signal into an analog signal, and generating a ramp signal in this process, simultaneously, whereby high degree of integration would be possible since a conventional complicated circuit is not required and gray scale with the high characteristic can be implanted, regardless of a change of a temperature or a threshold voltage.
REFERENCES:
patent: 5670979 (1997-09-01), Huq et al.
patent: 6278423 (2001-08-01), Wald et al.
patent: 6320565 (2001-11-01), Albu et al.
patent: 6348785 (2002-02-01), Wohlfarth
patent: 6369783 (2002-04-01), Kwon et al.
patent: 6417825 (2002-07-01), Stewart et al.
patent: 6462728 (2002-10-01), Janssen et al.
patent: 6469687 (2002-10-01), Janssen
patent: 7078957 (2006-07-01), Kim et al.
patent: 2002/0030653 (2002-03-01), Cairns et al.
patent: 2004/0090402 (2004-05-01), Cheng
L. Arbuthnot, et al.: “Advances in grayshade performance of active matrix electroluminescent(AMEL)microdisplays”; Planar Systems, Inc.; pp. 1-8.
Kim Jong Dae
Kwon Sung Ku
Lee Dae Woo
Park Il Yong
Roh Tae Moon
Electronics and Telecommunications Research Institute
Lowe Hauptman & Ham & Berner, LLP
Mengistu Amare
Sheets Elijah M
LandOfFree
Sources driver circuit for active matrix electroluminescent... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Sources driver circuit for active matrix electroluminescent..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sources driver circuit for active matrix electroluminescent... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3944797