Organic EL element drive circuit and organic EL display device

Details Organic EL element drive circuit and organic EL display device Organic EL element drive circuit and organic EL display device

2005-09-20

2005-09-20

Vo, Tuyet Thi (Department: 2821)

Electric lamp and discharge devices: systems

Plural power supplies

Plural cathode and/or anode load device

C315S169100, C345S098000, C345S076000, C345S104000, C345S214000

Reexamination Certificate

active

06946801

ABSTRACT:
A current mirror circuit of a current output circuit for current-driving an organic EL display panel is constructed with a plurality (n) of unit circuits each including a first MOS transistor of a certain channel type and a second MOS transistor of the same channel type having a source connected to a drain of the first MOS transistor, where n is an integer equal to or larger than 3, in which gates of the first MOS transistors or the second MOS transistors of at least two of the plurality of the unit circuits are connected to each other to form a common gate, one of the at least two unit circuits constitutes an input side circuit of the current mirror circuit, the other unit circuit constitutes an output side of the current mirror circuit.

REFERENCES:
patent: 6147665 (2000-11-01), Friedman
patent: 6586888 (2003-07-01), Kitahara et al.
patent: 10-112391 (1998-04-01), None
patent: 2003-234655 (2003-08-01), None

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