Organic EL panel drive circuit

Details Organic EL panel drive circuit Organic EL panel drive circuit

2006-03-14

2006-03-14

Lefkowitz, Sumati (Department: 2675)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C345S082000, C345S097000, C345S101000, C345S590000, C349S072000, C349S199000, C315S169300

Reexamination Certificate

active

07012584

ABSTRACT:
Drive switches3b1to3bnselectively apply a constant current to any one of anode electrode lines1A. Constant current sources3a1to3ansupply the constant current to anode electrode lines1A, respectively, via drive switches3b1to3bn. Scanning switches2a1to2amselectively set any one of cathode electrode lines1B to a ground potential and apply a reverse bias voltage to the other cathode electrode lines1B. First temperature compensation means5is provided with the temperature detection means5afor detecting an ambient temperature of organic EL devices E11to Enm, and generates a first temperature compensation drive voltage VA obtained by changing a power supply voltage according to an output from the temperature detection means5aand supplies the first temperature compensation drive voltage VA to the constant current sources3a1to3an. Second temperature compensation means6applies a temperature-compensated second temperature compensation drive voltage VB, which is generated based upon the first temperature compensation drive voltage VA outputted from the first temperature compensation means5, to the cathode electrode lines1B as the reverse bias voltage via the scanning switches2a1to2am.

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patent: P2001-142432 (2001-05-01), None

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