Patent ID: 7187355

Claim:
A display device, comprising: a plurality of scanning lines; a plurality of data lines; a plurality of time varying signal lines; a plurality of pixels, each of which includes: a first pass-gate that is controlled by one scanning line of the plurality of scanning lines; a capacitor; a second pass-gate that is connected to a common operating voltage; and a comparator that has a first input, a second input and an output, the first input and the second input being connected to the capacitor and one time varying signal line of the plurality of time varying signal lines, respectively, the capacitor storing a data signal supplied through the first pass-gate and one data line of the plurality of data lines, the comparator performing comparison of the data signal stored by the capacitor with a time varying signal supplied from the one time varying signal line and outputting an output signal on the basis of the comparison, the time varying signal incorporating a gamma correction; the output signal being supplied to a gate of the second pass-gate, and the second pass-gate controlling a current supply from the common operating voltage according to the output signal.