Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2005-06-17
2009-06-30
Nguyen, Chanh (Department: 2629)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C345S082000
Reexamination Certificate
active
07554513
ABSTRACT:
An organic light emitting diode (OLED) display includes a first and a second digital/analog current converters, a feedback unit and a compensating unit. The feedback unit includes the first and second feedback circuits for generating the first and second feedback currents, respectively. The compensating unit includes the first and second compensating circuits for outputting the first and second compensating voltages as the first and second reference voltages for the first and second digital/analog current converters in accordance with the first and second feedback currents, respectively. The luminance change of the first and second pixels is positively proportional to the first and second feedback current change. Therefore, the first and second compensating voltages are changed accordingly, and the first and second reference voltages are regulated so as to compensate for the luminance of the first and second pixels.
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Sun Wein-Town
Tseng Jung-Chun
Au Optronics Corp.
Nguyen Chanh
Rabin & Berdo, PC.
Snyder Adam J
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