Patent ID: 9548023
Date: 2017-01-17
CPC Classifications: G09G

Claim:
1. A display apparatus comprising: a plurality of pixel circuits respectively having wherein for at least one of the pixel circuits, a predetermined 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 a 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 to the light emitting device via a third switch circuit according to the data voltage 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, and is provided on a first insulation layer covering the plurality of pixel circuits, and wherein the cathode electrode is provided on a second insulation layer which is arranged on the first insulation layer, and is connected to a second voltage line, wherein the first voltage line extends along a pixel row that includes said at least one of the pixel circuits, and wherein the predetermined voltage is lower than the data voltage.