Patent ID: 7126285
Filing Date: 2006-10-24
Classification: G09G,H01L

Abstract:
1. A controller for a display panel comprising a plurality of pixels each having a respective organic electroluminescent device, the plurality of pixels including fluorescent pixels and phosphorescent pixels, the controller comprising: control circuitry supplying respective operating signals to be applied to the plurality of pixels; signal level adjusting circuitry receiving respective operating signals and corresponding signal level adjusting data from the control circuitry, and using the corresponding signal level adjusting data to adjust the signal levels of the respective operating signals before being applied by the signal level adjusting circuitry to the fluorescent pixels and to the phosphorescent pixels, the signal levels of the respective operating signals applied by the signal level adjusting circuitry being in accordance with the respective electroluminescence efficiencies of the fluorescent pixels and of the phosphorescent pixels; and signal timing circuitry extending the duration of respective operating signals supplied by the control circuitry to be applied to the fluorescent pixels relative to the duration of the respective operating signals applied to the phosphorescent pixels.