Patent ID: 8890149

Claim:
A light emitting device comprising: a first thin film transistor; a second thin film transistor; a third thin film transistor; a capacitor including a first electrode and a second electrode; and an electro-luminescence element including a third electrode and a fourth electrode, wherein one of a source and a drain of the first thin film transistor is directly connected to a gate of the second thin film transistor, wherein the second thin film transistor is directly connected between one of a source and a drain of the third thin film transistor and the third electrode of the electro-luminescence element, wherein the first electrode of the capacitor is directly connected to the one of the source and the drain of the first thin film transistor and the gate of the second thin film transistor, and wherein the second electrode of the capacitor is not directly connected to the fourth electrode of the electro-luminescence element.