Patent ID: 7012584
Filing Date: 2006-03-14
Classification: G09G

Abstract:
1. A drive circuit for an organic EL panel which is provided with first and second electrode lines, at least one of which is translucent, in a plural form, respectively, and in which an organic layer including at least a light-emitting layer is held between the respective electrode lines to constitute an organic EL devices of a dot matrix shape, characterized by comprising: anode scanning means for selectively applying a constant current to any one of the first electrode lines; a constant current source which supplies the constant current to the first electrode lines, respectively, via the anode scanning means; cathode scanning means for selectively setting any one of the second electrode lines to a ground potential and applying a reverse bias voltage to the other second electrode lines; first temperature compensation means which is provided with temperature detection means for detecting an ambient temperature of the organic EL devices, and generates a first temperature compensation drive voltage obtained by changing a power supply voltage according to an output from the temperature detection means and supplies the first temperature compensation drive voltage to the constant current source; and second temperature compensation means which applies a temperature-compensated second temperature compensation drive voltage, which is generated based upon the first temperature compensation drive voltage outputted from the first temperature compensation means, to the second electrode lines as the reverse bias voltage via the cathode scanning means.