Patent ID: 7554513
Filing Date: 2009-06-30
Classification: G09G

Abstract:
1. An organic light emitting diode display, comprising: a first digital/analog current converter for receiving first digital data and a first reference voltage so as to provide a first data current to a first pixel of a first color to emit light and a second digital/analog current converter for receiving second digital data and a second reference voltage so as to provide a second data current to a second pixel of a second color to emit light; a feedback unit having a first feedback circuit for providing a first feedback current for the first color, and a second feedback circuit for providing a second feedback current for the second color, wherein each of the first feedback circuit and the second feedback circuit comprises: a compensating unit electrically coupled to the feedback unit, the compensating unit comprising: wherein while the luminance of the first pixel and the second pixel attenuates with time, the first feedback current and the second feedback current reduce with time, such that the first compensating voltage and the second compensating voltage increase with time so as to increase the first data current and the second data current respectively.