Patent ID: 8149184
Filing Date: 2012-04-03
Classification: G09G

Abstract:
1. A plasma display panel device for displaying images by using a subfield method in which the number of discharge pulses to excite each of plural fluorescent materials to emit light is controlled on the basis of an input image signal and an emission amount of each of the fluorescent materials is controlled by the number of discharge pulses, the method comprising: a measuring unit which measures a cumulative elapsed driven time of the plasma display panel device; a memory which stores information data of the cumulative elapsed driven time of the plasma display panel device and corresponding correction data of the discharge pulses correlating the both data with one another; and a controller which reads out correction data which corresponds to the cumulative elapsed driven time measured by the measuring unit, executes correction processing for correcting the number of discharge pulses which corresponds to at least one of the fluorescent materials by using the read out correction data, wherein a time interval of the correction processing executed in the controller increases in accordance with the cumulative elapsed driven time from the point in time at which the plasma display panel device starts to drive.