Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2007-10-02
2007-10-02
Hjerpe, Richard (Department: 2629)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C345S082000, C315S169300
Reexamination Certificate
active
10821480
ABSTRACT:
A driving device which supplies a current to a plurality of current-driven optical elements to drive the optical elements includes at least a driving current supply circuit which supplies a driving current to each optical element for a predetermined period, and a control voltage applying circuit which applies a charge voltage having a voltage value corresponding to a voltage to be applied to each optical element using the driving current, before the driving current is supplied. The driving current supply circuit includes a single constant current generating circuit which outputs a constant current having the same current value as that of a driving current, and a plurality of current storage circuits which sequentially receive and hold the constant current and output the driving current on the basis of the constant current.
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Young-Sun NA et al ; “1.8-Inch Full-Color OEL Display for IMT2000 Terminals”; SID International Synposium Digest of Technical Papers, Boston, Mass. May 21-23, 2002., vol. 33, No. 2, May 2002; pp. 1178-1181.
Casio Computer Co. Ltd.
Fatahi-yar M.
Frishauf Holtz Goodman & Chick P.C.
Hattori Reiji
Hjerpe Richard
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