Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2003-03-18
2008-10-07
Lefkowitz, Sumati (Department: 2629)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C345S077000, C345S078000, C345S079000, C345S080000, C345S081000, C345S082000, C345S204000, C345S690000
Reexamination Certificate
active
07432886
ABSTRACT:
An organic EL display device for compensating for a reduction of the voltage between the gate and source of a driving transistor occurring due to a voltage drop of the source voltage caused by the resistance component of a power source line, and a method for driving the organic EL display device. The organic EL display device has a data driver for receiving digital image data and applying the digital image data and a data voltage corresponding to the position of a pixel circuit. The data driver outputs different data voltages depending on the position of the pixel circuit even when the same digital image data are received. When the driving transistor is a P-type transistor, the data driver applies a higher data voltage to a pixel circuit that is closer to an external voltage source than that applied to a farther one even when the same digital data are received. When the driving transistor is an N-type transistor, the data driver applies a lower data voltage to a pixel circuit that is closer to an external voltage source than that applied to a farther one even when the same digital data are received.
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English translation of Korean Patent Laid Open Publication 1999-0033178, Published on May 15, 1999, in the name of Seung-Jun Lee, 14 pgs (previously submitted in the IDS filed on Sep. 23, 2004.).
Lee Kyoung-Soo
Song June-Young
Beck Alexander S
Christie Parker & Hale LLP
Lefkowitz Sumati
Samsung SDI & Co., Ltd.
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