Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2007-02-20
2007-02-20
Vo, Tuyet (Department: 2821)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C345S076000, C345S092000
Reexamination Certificate
active
11205271
ABSTRACT:
An organic light emitting display includes a plurality of pixels, at least one of the pixels having: an organic light emitting diode; a driving transistor adapted to supply a driving current to the organic light emitting diode; a first switching transistor adapted to selectively supply a data signal to the driving transistor; a second switching transistor adapted to selectively supply an initialization signal; a third switching transistor adapted to selectively allow the driving transistor to be connected as a diode and to selectively supply the initialization sought; a storage capacitor adapted to store a first voltage corresponding to the initialization signal received from the third switching transistor and then to store a second voltage corresponding to the data signal applied at a gate electrode of the driving transistor; and an interrupter adapted to selectively supply a pixel power to the driving transistor and to selectively allow the driving current to flow into the organic light emitting diode. In this display, the amount of current leaking out through a switching transistor is decreased, and thus a voltage variance applied to a gate electrode of a driving transistor is decreased, thereby enhancing a contrast of an image.
REFERENCES:
patent: 6809482 (2004-10-01), Koyama
patent: 6930680 (2005-08-01), Miyazawa
patent: 6937215 (2005-08-01), Lo
patent: 6975293 (2005-12-01), Yen et al.
patent: 2004/0145547 (2004-07-01), Oh
patent: 2004/0196239 (2004-10-01), Kwon
patent: 2005/0017934 (2005-01-01), Chung et al.
Alemu Ephrem
Christie Parker & Hale LLP
Samsung SDI Co., Ltd
Vo Tuyet
LandOfFree
Organic light emitting display does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Organic light emitting display, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Organic light emitting display will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3893772