Patent ID: 11862086
Assignee: LG DISPLAY CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 13:
14. A display device comprising:
a display panel in which a plurality of data lines, a plurality of gate lines intersected with the data lines, a first power line to which a pixel driving voltage is applied, a second power line to which an initialization voltage is applied, a third power line to which a reference voltage is applied, a fourth power line to which a power supply voltage is applied, and a plurality of pixel circuits electrically connected to the data lines, the gate lines, and the first, second, third and fourth power lines are disposed;
a data driver that, in operation, supplies a data voltage of pixel data to the data lines; and
a gate driver that, in operation, supplies a gate signal to the gate lines,
wherein each of the pixel circuits includes:
a driving element including a first electrode electrically connected to a first node, a first gate electrode electrically connected to a second node, a second electrode electrically connected to a third node, and a second gate electrode to which an initialization voltage is applied;
a light emitting element including an anode electrode electrically connected to a fourth node and a cathode electrode to which a power supply voltage is applied, the light emitting element being driven according to a current from the driving element;
a first switch element electrically connected between the first node and the second node;
a second switch element directly connected between the third node and the fourth node;
a first capacitor electrically connected to the first gate electrode of the driving element and to which the data voltage of pixel data is applied; and
a second capacitor electrically connected to the third node and to which the initialization voltage is applied.