Patent ID: 8497856

Claim:
A light emitting device comprising: a pixel circuit having a data line; and a driving circuit that drives the pixel circuit, wherein the pixel circuit includes a driving transistor and a light emitting element that are connected in series between a high potential supply line and a low potential supply line, a first capacitance element disposed between a gate and a source of the driving transistor, a selection transistor disposed between the gate of the driving transistor and the data line, and a current generating unit that generates a set current passing from the high potential supply line through the driving transistor and a node interposed between the driving transistor and the light emitting element, and flowing to be branched into the other path different from a path reaching the light emitting element, and wherein the driving circuit in a first period, is configured to set a potential of the gate of the driving transistor to an initialization potential to turn on the driving transistor, in a second period after the first period, is configured to control the current generating unit to generate the set current with a predetermined magnitude to set a voltage between both ends of the first capacitance element to a value sufficient for the set current to flow in the driving transistor, and in a third period after the second period, is configured to set the selection transistor to be turned on and to set a potential output to the data line to data potential corresponding to a designated gradation of the light emitting element to set the voltage between both ends of the capacitance element to a value corresponding to the data potential.