Computer graphics processing and selective visual display system – Display driving control circuitry – Intensity or color driving control
Reexamination Certificate
2006-03-14
2006-03-14
Tran, Thuy Vinh (Department: 2821)
Computer graphics processing and selective visual display system
Display driving control circuitry
Intensity or color driving control
C345S076000, C345S077000, C315S169300
Reexamination Certificate
active
07012626
ABSTRACT:
The present invention provides a driving method for a display device which includes a display part having pixels of M columns×N rows and a memory, wherein each pixel includes a light emitting element and a driving transistor for driving the light emitting element. At times other than a usual light emitting time, a driving voltage is applied to the driving transistor of each pixel so as to turn on the light emitting element of each pixel, a value of current which flows in the light emitting element of each pixel is detected, correction data for each pixel is calculated based on the detected value of current, and the calculated correction data for each pixel is stored in the memory. At the usual light emitting time, a driving voltage which is based on data which is obtained by adding the correction data stored in the memory to video signal data is applied to the driving transistor of each pixel.
REFERENCES:
patent: 6806497 (2004-10-01), Jo
patent: 2003/0214467 (2003-11-01), Koyama et al.
patent: 2004/0130545 (2004-07-01), Ishizuka
Shingai Akira
Tokuda Naoki
A. Marquez, Esq. Juan Carlos
Fischer, Esq. Stanley P.
Hitachi Displays Ltd.
Reed Smith LLP
Tran Thuy Vinh
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