Organic electroluminescent display and pixel driving circuit...

Details Organic electroluminescent display and pixel driving circuit... Organic electroluminescent display and pixel driving circuit...

2006-05-23

2011-10-25

Nguyen, Chanh (Department: 2629)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

Reexamination Certificate

active

08044896

ABSTRACT:
A pixel driving circuit includes a first transistor, a second transistor, a third transistor, a forth transistor, a switching circuit, a first voltage generator, a second voltage generator, and a light emitting element. The source of the first transistor is electrically connected to the drain of the second transistor. The gate of the third transistor is electrically connected to the gate of the first transistor. The drain of the forth transistor is electrically connected to the source of the third transistor, and the gate of the forth transistor is electrically connected to the gate and the drain of the second transistor. The first voltage generator is coupled to the source of the second transistor and of the forth transistor. The light emitting element is coupled to the drain of the first transistor via a first electrode, and to the second voltage generator via a second electrode. The switching circuit is electrically connected to the drain and the gate of the third transistor.

REFERENCES:
patent: 6091203 (2000-07-01), Kawashima et al.
patent: 6509692 (2003-01-01), Komiya
patent: 7502002 (2009-03-01), Horiuchi et al.
patent: 2002/0101177 (2002-08-01), Bae et al.
patent: 2002/0196212 (2002-12-01), Nishitoba et al.
patent: 2004/0189615 (2004-09-01), Osame et al.

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