Patent ID: 9685110
Date: 2017-06-20
CPC Classifications: G09G

Claim:
1. A display device, comprising: a display area including a plurality of pixel circuits; a peripheral area including a scanning circuit; a plurality of first scanning lines; a plurality of second scanning lines; and a plurality of third scanning lines; wherein the scanning circuit facing to a first side of the display area is configured to receive an input pulse and supply a plurality of output signals, each of the plurality of pixel circuits includes a write transistor, a drive transistor, a first switching transistor, a second switching transistor, a third switching transistor, a fourth switching transistor, a capacitor, and a light emitting element, wherein a duration of a conductive state of the third switching transistor is variably controlled by changing a width of the input pulse, and wherein a duration of a conductive state of the fourth switching transistor is variably controlled by changing the width of the input pulse, an initializing potential is supplied from an initializing voltage line to the capacitor via the second switching transistor, a data potential is supplied from a video signal line to the capacitor via the write transistor, the drive transistor, and the first switching transistor, a drive current is supplied from a voltage line to the light emitting element via the third switching transistor, the drive transistor, and the fourth switching transistor, a gate terminal of the third switching transistor and a gate terminal of the fourth switching transistor are connected to the scanning circuit via one of the plurality of first scanning lines, a gate terminal of the write transistor and a gate terminal of the first switching transistor are connected to the scanning circuit via one of the plurality of second scanning lines, and a gate terminal of the second switching transistor is connected to the scanning circuit via one of the plurality of third scanning lines.