Organic electroluminescent device having backup driving unit

Details Organic electroluminescent device having backup driving unit Organic electroluminescent device having backup driving unit

2005-12-27

2005-12-27

Dinh, Trinh Vo (Department: 2821)

Electric lamp and discharge devices: systems

Plural power supplies

Plural cathode and/or anode load device

C345S092000

Reexamination Certificate

active

06979956

ABSTRACT:
An organic electroluminescent device of the present invention includes: a gate line and a data line formed over a substrate, the gate and data lines perpendicularly crossing each other and defining a pixel therebetween; a first driving unit formed in the pixel and comprised of a first switching TFT and a first driving TFT; a power line delivering a current signal to the first driving TFT; an organic electroluminescent diode contacting the first driving TFT and receiving the current signal from the first driving TFT; and a second driving unit formed in the pixel and comprised of a second switching TFT and a second driving TFT, the second driving unit being a backup circuit that can deliver the current signal from the power line to the organic electroluminescent diode when the first driving unit malfunctions.

REFERENCES:
patent: 6236064 (2001-05-01), Mase et al.
patent: 6528950 (2003-03-01), Kimura
patent: 6611248 (2003-08-01), Kanbara et al.
patent: 6713783 (2004-03-01), Mase et al.
patent: 6753656 (2004-06-01), Kimura

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