Organic EL panel drive circuit and propriety test method for...

Details Organic EL panel drive circuit and propriety test method for... Organic EL panel drive circuit and propriety test method for...

2006-08-01

2006-08-01

Vo, Tuyet Thi (Department: 2821)

Electric lamp and discharge devices: systems

Plural power supplies

Plural cathode and/or anode load device

C315S169300, C345S214000, C345S212000, C345S211000, C345S204000

Reexamination Certificate

active

07084575

ABSTRACT:
First analog currents are obtained through a plurality of switch circuits provided correspondingly to output pins of an organic EL drive circuit as drive currents or through output stage current sources. The first analog currents or the drive currents are compared by a comparator provided within the organic EL element drive circuit with a second analog current (reference current) or a current obtained by passing the second analog current through a current source corresponding to the output stage current source. A result of comparison is outputted externally of the organic EL element drive circuit. The drive currents are obtained sequentially at the output pins by turning the switch circuits ON one by one sequentially by a control circuit to sequentially obtain the result of comparison for the drive currents from the organic EL element drive circuit.

REFERENCES:
patent: 6946801 (2005-09-01), Kitahara
patent: 9-232074 (1997-09-01), None
patent: 2001-143867 (2001-05-01), None
patent: 2003-308043 (2003-10-01), None
patent: 2003-308044 (2003-10-01), None

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