Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2006-12-19
2006-12-19
Hjerpe, Richard (Department: 2629)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C345S060000, C315S169400
Reexamination Certificate
active
07151510
ABSTRACT:
The present invention is to provide a method and apparatus for driving an AC PDP, where background luminance is reduced and the time required for a reset period is shortened while the stability and an address margin are sufficiently maintained, thus improving reset performance. The present invention provides a method of driving an Alternating Current (AC) Plasma Display Panel (PDP) comprising the steps of: applying a drive signal including a plurality of successive short pulses during the reset period; addressing at least a part of the discharge cells by applying data pulses to at least a part of said electrodes to enable selective discharge of said discharge cells according to image data during the address period; wherein, during the reset period, the plurality of short pulses form a plurality of discharges each duration of which is limited; and wherein a standardized wall charge is formed in each of the discharge cells due to the plurality of discharges so that the selective discharge is easily generated by application of data pulses during the address period.
REFERENCES:
patent: 5745086 (1998-04-01), Weber
patent: 6781564 (2004-08-01), Onozawa et al.
patent: 2004/0212558 (2004-10-01), Son et al.
K. Yoshikawa et al., “A Full Color AC Plasma Display With 256 Gray Scale”, Japan Display, 1992, pp. 605-608.
Larry F. Weber, “Plasma Display Device Challenges”, Asia Display, 1998, pp. 15-27.
Jung Woo-Joon
Whang Ki-Woong
Yang Jin-Ho
Hjerpe Richard
Said Mansour M.
Seoul National University Industry Foundation
The Webb Law Firm
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