Patent ID: 8786313

Claim:
A display device comprising: a pixel portion comprising a pixel transistor and a conductive line; and a driver circuit connected to the conductive line and comprising: a source follower circuit comprising a first input portion, an output portion, and a bias input portion; a logic circuit comprising a second input portion electrically connected to the output portion of the source follower circuit, the logic circuit comprising a driver transistor; a first wiring electrically connected to the source follower circuit, the first wiring being adapted to be supplied with a first constant low potential; a second wiring electrically connected to the logic circuit, the second wiring being adapted to be supplied with a second constant low potential; a third wiring electrically connected to the source follower circuit, the third wiring being adapted to be supplied with a first constant high potential; and a fourth wiring electrically connected to the logic circuit, the fourth wiring being adapted to be supplied with a second constant high potential, wherein the first constant low potential is lower than the second constant low potential.