Patent ID: 8159424

Claim:
A display device comprising: a pixel array part configured to include scan lines disposed along rows, signal lines disposed along columns, and pixels that are disposed at intersections of the scan lines and the signal lines and are arranged in a matrix; and a drive part configured to drive the pixel array part and include a control scanner and a signal selector, the control scanner sequentially applying a control pulse to the scan lines with a horizontal cycle to thereby line-sequentially scan the pixels on a row-by-row basis, the signal selector supplying a video signal to the signal lines disposed along the columns in matching with the line-sequential scanning, wherein the pixel includes a sampling transistor having a gate connected to the scan line and a source and a drain one of which is connected to the signal line, a drive transistor having a gate connected to the other of the source and the drain of the sampling transistor and a source and a drain one of which is connected to a power supply, a light-emitting element connected to the other of the source and the drain of the drive transistor, and a hold capacitor connected between the source and the gate of the drive transistor, the sampling transistor is kept at an on-state during a period from rising of a control pulse supplied from the control scanner to the scan line to falling of the control pulse with a time width shorter than one horizontal cycle, and samples a video signal from the signal line to write the video signal to the hold capacitor, the sampling transistor includes a channel region between the source and the drain and has a sandwich gate structure in which the gate exists on one surface side of the channel region with intermediary of an insulating film and a shield that electrically shields the channel region is disposed on the other surface side of the channel region, and the drive transistor causes a drive current dependent on a video signal written to the hold capacitor to flow to the light-emitting element for light emission.