Patent ID: 11862104
Assignee: LG DISPLAY CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 13:
14. A display device, comprising:
a display panel on which a plurality of data lines to which a data voltage is applied, a plurality of gate lines crossing the data lines and to which a gate signal is applied, and pixel circuits connected to a plurality of power lines are disposed;
a data driver configured to receive pixel data and output the data voltage; and
a gate driver configured to output the gate signal using a shift register,
wherein the gate driver includes:
a controller configured to charge and discharge a first control node that pulls up an output voltage and a second control node that pulls down the output voltage;
a first output unit including a first pull-up transistor configured to apply a gate high voltage to a first output node in response to a charging voltage of the first control node, and a first pull-down transistor configured to apply a gate low voltage to the first output node in response to a charging voltage of the second control node; and
a switch unit configured to change a current path between the first output node and a first power line to which a high potential voltage is applied or a second power line to which a first clock signal is applied according to a carry signal transmitted from a signal transmission unit of a previous stage and a voltage level of the second control node.