Patent ID: 8482504

Claim:
A display device comprising a pixel, the pixel comprising: a pixel electrode; a first gate signal line; a second gate signal line; a source signal line; a circuit able to keep digital data stored even after power supply to the circuit is shut off, the circuit comprising a memory circuit; a first transistor, a gate of the first transistor being electrically connected to the first gate signal line, one of a source and a drain of the first transistor being electrically connected to the source signal line, and the other of the source and the drain of the first transistor being electrically connected to the memory circuit; a second transistor, a gate of the second transistor being electrically connected to the second gate signal line, and one of a source and a drain of the second transistor being electrically connected to the pixel electrode without an intervening active electrical component in between; and a third transistor, one of a source and a drain of the third transistor being directly connected to the memory circuit and the other of the source and the drain of the third transistor being directly connected to the other of the drain and the source of the second transistor.