Pixel circuit

Details Pixel circuit Pixel circuit

2011-04-05

2011-04-05

Mengistu, Amare (Department: 2629)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C345S055000, C345S204000

Reexamination Certificate

active

07920110

ABSTRACT:
A pixel circuit has an organic light emitting diode, a driving transistor, a capacitor and a first switch. The organic light emitting diode has a first end coupled to a first power source terminal. The driving transistor has a source and a drain respectively coupled to a second power source terminal and a second end of the light emitting diode. The capacitor couples a gate of the driving transistor to a reference voltage terminal. The first switch couples the second end of the light emitting diode to the capacitor, and couples the gate and the drain of the driving transistor together when a first scan signal is asserted.

REFERENCES:
patent: 6229506 (2001-05-01), Dawson et al.
patent: 2004/0150595 (2004-08-01), Kasai
patent: 2004/0196224 (2004-10-01), Kwon
patent: 2004/0257315 (2004-12-01), Wang et al.
patent: 2005/0219166 (2005-10-01), Kim
patent: 2006/0158397 (2006-07-01), Goh

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