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

2006-04-11

2006-04-11

Dinh, Trinh Vo (Department: 2821)

Electric lamp and discharge devices: systems

Plural power supplies

Plural cathode and/or anode load device

C315S169300, C345S204000

Reexamination Certificate

active

07026766

ABSTRACT:
An organic EL element drive circuit includes a current mirror circuit, a first current output circuit for generating a current having a first value in response to an output current of one of output side transistors of the current mirror circuit and a current generator circuit. An input terminal of the organic EL element drive circuit is supplied with a current having a second value from a second current output circuit of another organic EL element drive circuit preceding to the organic EL element drive circuit, which has substantially the same construction as that of the first current output circuit, to generate a predetermined drive current and the input transistor of the current mirror circuit is driven by the predetermined drive current to generate the first current value corresponding to the second current value.

REFERENCES:
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patent: 6756738 (2004-06-01), Maede et al.
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patent: 2001-42827 (2001-02-01), None
U.S. Appl. No. 10/102,621, filed Mar. 22, 2002, Leon McCaughan.

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