Organic light emitting display device and driving method

Details Organic light emitting display device and driving method Organic light emitting display device and driving method

2007-02-22

2010-06-15

Hjerpe, Richard (Department: 2629)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C345S204000

Reexamination Certificate

active

07737927

ABSTRACT:
A pixel including an organic light emitting diode, an organic light emitting display device including the pixel, and a method for driving the organic light emitting display device. The pixel includes first and second drivers and first and second selectors. A horizontal period for driving the pixel includes first and second periods. The first driver charges a first voltage corresponding to a reference current flowing into a data line during the first period. The second driver charges a second voltage corresponding to a sum of the reference current and a pixel current during the second period. The first selector is turned-on during the horizontal period for connecting the data line to the first and second drivers. The second selector controls the flow of current to the organic light emitting diode and is turned-off during the horizontal period but is otherwise turned-on.

REFERENCES:
patent: 2001/0026251 (2001-10-01), Hunter et al.
patent: 2004/0100427 (2004-05-01), Miyazawa
patent: 2004/0196239 (2004-10-01), Kwon
patent: 2005/0007357 (2005-01-01), Yamashita et al.
patent: 2005/0265071 (2005-12-01), Kwon
patent: 10-2005-0035550 (2005-04-01), None
Korean Patent Abstracts, Publication No. 1020050035550 A, Published on Apr. 19, 2005, in the name of Chien et al.

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