Patent ID: 7075503

Claim:
A method for adjusting color temperature in a PDP device, comprising: converting an input image signal to RGB signals; establishing a ratio of levels of the RGB signals that will produce a desired color temperature for the PDP device; A/D converting the input RGB signals and then Î³ converting the A/D converted input RGB signals, wherein Î³ converting the A/D converted input RGB signals comprises Î³ converting each RGB signal in a separate Î³ converting unit based on a color temperature selecting signal generated by a color temperature selecting unit; selecting light emitting frequencies for each of the RGB signals based on the ratio of levels of RGB signals; and selecting a subfield gradation frequency corresponding to the selected light emitting frequency for each of the RGB signals, wherein the ratio of levels of the RGB signals is maintained at the established level so as to maximize a brightness level of the PDP.