An Enhanced and Simplified Optical Feedback Pixel Circuit for AMOLED Displays

Active-matrix organic light emitting diode (AMOLED) displays have been considered a potential candidate for the next generation of flat panel displays due to the ability of AMOLED in providing wider viewing angle, larger color gamut, and lower fabrication cost. In this paper we present a new optical feedback pixel circuit that preserves the advantages of active matrix structure while demanding simple off-panels driver and four active components at each pixel but compensates for the luminance degradation of the AMOLED display