Patent ID: 7154494
Filing Date: 2006-12-26
Classification: G09G

Abstract:
1. A method for driving an organic EL display device, comprising: employing an organic EL panel including scanning electrodes and data electrodes so as to have a matrix pattern, the organic EL panel having an organic EL element sandwiched between a scanning electrode and a data electrode; setting a selected scanning electrode at a potential in a selection period; setting a non-selected scanning electrode at a potential in a non-selection period; and flowing a constant current from a data electrode driver into a data electrode containing a pixel to emit light; setting a voltage value of a supply voltage at a higher value than a driving voltage of the organic EL element by a margin value for power source, and changing the voltage value of the supply voltage according to changes in the driving voltage caused by changes in an ambient temperature of the organic EL panel, the power supply being supplied to the data electrode data driver, in a case wherein the ambient temperature is in an intermediate temperature range; and setting the voltage value of the supply voltage so as to have a smaller difference between the supply voltage and the driving voltage than that in the intermediate temperature range, and changing the voltage value of the supply voltage in a higher degree than a changing degree in the supply voltage caused by the changes in the ambient temperature in the intermediate temperature range in a case wherein the ambient temperature is in a high temperature range which is higher than the intermediate temperature range.