Patent ID: 7663615

Claim:
A light emission circuit comprising: a selection line; a hold line; a data line; a supplying voltage line; a hold transistor having a gate electrically connected to the hold line, and a current path; a drive transistor having a gate and a current path, the gate of the drive transistor being electrically connected to a first end of the current path of the hold transistor and a first end of the current path of the drive transistor being connected to the supplying voltage line; and a selection transistor having a gate and a current path, the gate of the selection transistor being electrically connected to the selection line, a first end of the current path of the selection transistor being connected to a second end of the current path of the drive transistor, and a second end of the current path of the selection transistor being connected to the data line; wherein the selection transistor is turned on by a first control signal from the selection line in a precharge time period, the hold transistor is turned on by a second control signal from the hold line, and a voltage having an absolute value that is larger than an absolute value of a threshold voltage of the drive transistor or a voltage exceeding a minimum luminance voltage necessary for generating a light emission drive current required for making a light emission element perform a light emission operation at a minimum luminance gradation sequence is provided to the drive transistor; and wherein the selection transistor is turned off by the first control signal from the selection line in a correction operation time period, and a voltage between the gate of the drive transistor and the second end of the current path of the drive transistor is set so as to decrease to the threshold voltage of the drive transistor or the minimum luminance voltage.