Computer graphics processing and selective visual display system – Display driving control circuitry
Reexamination Certificate
2007-11-06
2007-11-06
Shalwala, Bipin (Department: 2629)
Computer graphics processing and selective visual display system
Display driving control circuitry
C345S076000, C345S084000, C345S205000, C345S690000, C315S169300, C340S870030
Reexamination Certificate
active
10855375
ABSTRACT:
A resetting period of organic EL elements is divided to a discharge period for discharging residual charges of the organic EL elements and a precharge period for pre-charging the organic EL elements to predetermined potentials. First switch circuits provided for each of R (red), G (green) and B (blue) display colors are turned ON in the discharge period to discharge residual charges of the organic EL elements and second switch circuits provided for each of R, G and B display colors are turned ON in the precharge period to precharge the EL elements to a precharge potential lower than a light emission voltage of the organic EL elements. Values of finally set precharge voltages for R, G and B display colors are made different from each other.
REFERENCES:
patent: 5990629 (1999-11-01), Yamada et al.
patent: 2003/0103022 (2003-06-01), Noguchi et al.
patent: 2003/0151616 (2003-08-01), Morita
patent: 9-232074 (1997-09-01), None
patent: 2001-143867 (2001-05-01), None
Kovalick Vincent E.
Mattingly ,Stanger ,Malur & Brundidge, P.C.
Rohm & Co., Ltd.
Shalwala Bipin
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