Display device that switches light emission states multiple times during one field period

摘要

A scan driving circuit includes a shift register unit and a logic circuit unit. The start of a start pulse of an output signal STp+1 of a p+1′th shift register is situated between the start and end of a start pulse of the output signal STp of a p′th shift register, and one each of a first enable signal through a Q′th enable signal exist in sequence between the start of the start pulse of the output signal STp and the start of the start pulse of the output signal STp+1. The operations of a (p′, q)′th NAND circuit are restricted based on period identifying signals, such that the NAND circuit generates scanning signals based only on a portion of the output signal STp corresponding to the first start pulse, the signal obtained by inverting the output signal STp+1, and the q′th enable signal ENq.

主权项

1. A display apparatus comprising:
a plurality of pixel circuits respectively including a light emitting device, a first transistor, a second transistor, a first switch circuit, a second switch circuit, a third switch circuit, and a capacitor, wherein a first voltage is supplied from a first voltage line to a gate of the second transistor via the second switch circuit during a first period, wherein a data voltage is supplied from a signal line to the gate of the second transistor via the first transistor, the second transistor, and the first switch circuit during a second period after the first period, wherein a driving current is supplied from a second voltage line to the light emitting device via the third switch circuit and the second transistor during a third period after the second period, wherein the light emitting device has an anode electrode, a light emitting layer, and a cathode electrode, wherein the light emitting device is provided on a first insulation layer covering the plurality of pixel circuits, wherein the cathode electrode is provided on a second insulation layer which is arranged on the first insulation layer, wherein the cathode electrode is connected to a third voltage line via a first contact formed in the first insulation layer and a second contact formed in the second insulation layer, and wherein the light emitting device is configured to emit light multiple times in one field period.