Light-emitting device

Abstract

To suppress variation in luminance of a light-emitting element caused by variation in threshold voltage of a transistor and suppress a decrease in the luminance of the light-emitting element caused by deterioration of an electroluminescent layer.SOLUTION: A light-emitting device includes: a light-emitting element; a first transistor whose source is electrically connected to an anode of the light-emitting element; a second transistor which controls whether or not an image signal is input to a gate of the first transistor; a third transistor which controls whether or not the gate of the first transistor and a drain are electrically connected; a fourth transistor which controls whether or not a first power supply potential is supplied to the drain of the first transistor; a fifth transistor which controls whether or not a second power supply potential is supplied to the anode of the light-emitting element; a first capacitor which holds voltage between the gate and the source of the first transistor; and a second capacitor electrically connected in series with the first capacitor and electrically connected in series with the light-emitting element.SELECTED DRAWING: Figure 1