Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2004-02-18
2008-08-26
Lewis, David L (Department: 2629)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C345S077000, C345S092000, C315S169300
Reexamination Certificate
active
07417606
ABSTRACT:
A display apparatus includes light-emitting elements each of which is arranged for a pixel circuit and emits light at a luminance corresponding to a driving current. To a signal line through the pixel circuit, is supplied a gray level designation current having a current value larger than that of the driving current during a selection period to store a luminance gray level in the pixel circuit. A first voltage is outputted to the pixel circuit so that the gray level designation current is supplied to the signal line through the pixel circuit during the selection period, and a second voltage is outputted to the pixel circuit during a nonselection period, thereby modulating a current output from the pixel circuit on the basis of the luminance gray level stored in the pixel circuit to supply the driving current to the pixel circuit.
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Casio Computer Co. Ltd.
Frishauf Holtz Goodman & Chick P.C.
Lewis David L
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