Patent ID: 11862089
Assignee: LG DISPLAY CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 14:
15. A display device, comprising:
a display panel having a plurality of subpixels;
a gate driving circuit configured to supply a plurality of scan signals to the display panel respectively through a plurality of gate lines;
a data driving circuit configured to supply a plurality of data voltages to the display panel respectively through a plurality of data lines; and
a timing controller configured to drive the gate driving circuit and the data driving circuit,
wherein at least one of the subpixels includes:
a reference circuit configured to receive a high-potential voltage and to output a control voltage for controlling a driving current flowing through a light emitting element;
a light emitting circuit including the light emitting element, the light emitting circuit being configured to receive the control voltage and a low-potential voltage and to control the light emitting element based on a driving voltage;
an amplification circuit configured to compare the control voltage and a data voltage to generate the driving voltage for controlling the light emitting circuit; and
an input circuit configured to receive the data voltage and a first scan signal and to control a timing of applying the data voltage to the amplification circuit based on the first scan signal, and

wherein the amplification circuit includes:
a control transistor having a gate node to receive the control voltage and a drain node to provide the driving voltage to the light emitting circuit; and
a first capacitor connected to the drain node of the control transistor to transfer an input power voltage.