Patent ID: 8629823

Claim:
A semiconductor device including a display device, comprising: a pixel matrix circuit; and a first gate signal line side driving circuit and a second gate signal line side driver circuit, wherein the pixel matrix circuit is located between the first gate signal line side driving circuit and the second gate signal line side driver circuit, each of the first gate signal line side driving circuit and the second gate signal line side driver circuit including a shift register circuit and a buffer circuit electrically connected with the shift register circuit, the buffer circuit comprising an inverter, wherein the inverter comprises a plurality of n-channel thin film transistors and a plurality of p-channel thin film transistors, and wherein each of the plurality of n-channel thin film transistors is connected in parallel with each other and each of the plurality of p-channel thin film transistors is connected in parallel with each other, and wherein a channel region of the plurality of n-channel thin film transistors and the plurality of p-channel thin film transistors comprises crystalline silicon.