Patent ID: 7030847
Filing Date: 2006-04-18
Classification: G09G

Abstract:
1. A light emitting device comprising a plurality of pixels electrically connected to a power supply line, each of the plurality of pixels comprising: an EL driving TFT; an electric discharge TFT; an EL element; a reference power supply line; a switching TFT; a source signal line, wherein a source region of the EL driving TFT is electrically connected to the power supply line and a drain region of the EL driving TFT is electrically connected to a pixel electrode of the EL element, and wherein a drain region of the electric discharge TFT is electrically connected to the power supply line and a source region of the electric discharge TFT is electrically connected to the reference power supply line, and wherein a gate electrode of the electric discharge TFT is electrically connected to a gate electrode of the EL driving TFT, and wherein a gate electrode of the EL driving TFT is electrically connectable to the source signal line through the switching TFT.