Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2003-09-04
2008-08-26
Lefkowitz, Sumati (Department: 2629)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C315S291000
Reexamination Certificate
active
07417616
ABSTRACT:
An inverter for a display includes; an inverter controller generating a carrier signal for pulse width modulation and a lamp driving signal having on-time and off-time by pulse width modulating a dimming signal based on the carrier signal and controlling the on-time of the lamp driving signal in response to at least one of a vertical synchronization signal and a vertical synchronization start signal from the signal controller, a power switching element transmitting a DC voltage in response to a signal from the inverter controller, and a voltage booster for driving a lamp in response to a signal from the switching element, wherein the inverter controller includes a control block which generates the carrier signal and the lamp driving signal, a time constant setting block which determines a time constant of the carrier signal, and an initiation block which resets the time constant given by the time constant setting block.
REFERENCES:
patent: 5844540 (1998-12-01), Terasaki
patent: 6636190 (2003-10-01), Hirakata et al.
patent: 2002/0057247 (2002-05-01), Lee et al.
patent: 2003/0137485 (2003-07-01), Wei et al.
patent: 2003/0142118 (2003-07-01), Funamoto et al.
patent: 2003/0178951 (2003-09-01), Park et al.
patent: 980377 (1997-03-01), None
patent: 2000111873 (2000-04-01), None
patent: 2001125547 (2001-05-01), None
patent: 2001166278 (2001-06-01), None
JP2001166278 was cited in a Chinese Office action dated Aug. 31, 2007.
Jang Hyeon-Yong
Min Woong-Kyu
Cantor & Colburn LLP
Lefkowitz Sumati
Moon Seokyun
Samsung Electronics Co,. Ltd.
LandOfFree
Inverter for liquid crystal display does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Inverter for liquid crystal display, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Inverter for liquid crystal display will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4006895