Patent ID: 6548960
Filing Date: 2003-04-15
Classification: G09G,H01L

Abstract:
An electronic device comprising:a pair of source signal line driver circuits; a pair of gate signal line driver circuits; and a pixel portion including a plurality of pixels, wherein said plurality of pixels each have an EL element, a pair of EL driver TFTs, a pair of switching TFTs and a pair of eliminating TFTs, wherein luminescence of the EL element is controlled by said pair of EL driver TFTs; wherein one of said pair of EL driver TFTs is controlled by one of said pair of switching TFTs and one of said pair of eliminating TFTs; wherein the other of said pair of EL driver TFTs is controlled by the other of said pair of switching TFTs and the other of said eliminating TFTs; and wherein gray-scale display is performed by controlling luminescence time of said plurality of EL elements.