Patent ID: 8076671

Claim:
A light emitting device comprising: a thin film transistor over a substrate, the thin film transistor comprising: a semiconductor film over the substrate; an insulating film adjacent to the semiconductor film; and a gate electrode adjacent to the semiconductor film with the insulating film interposed therebetween; a first light emitting element having a first light emitting layer including a light emitting organic compound between a first anode and a first cathode; a second light emitting element having a second light emitting layer including a light emitting organic compound between a second anode and a second cathode; and a color filter, wherein the first light emitting element and the second light emitting element are connected in series and are electrically connected to the thin film transistor, wherein the first light emitting element shows a first emission spectrum having at least two peaks and the second light emitting element shows a second emission spectrum having a peak in a different position from positions of the two peaks, wherein a white emission color is shown by the first emission spectrum and the second emission spectrum, and wherein the color filter is arranged to change a chromaticity of the white emission color.