Patent ID: 11922888
Assignee: LG DISPLAY CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A display device, comprising:
a display panel where a plurality of gate lines, a plurality of data lines, and a plurality of subpixels are disposed;
a gate driving circuit configured to supply a plurality of scan signals to the plurality of gate lines;
a data driving circuit configured to convert digital image data into an analog data voltage and supply the analog data voltage to the plurality of data lines;
a power management circuit configured to supply a gamma driving power for driving the data driving circuit to the data driving circuit through a gamma driving power line and include a gamma driving power detection circuit for detecting a variation of the gamma driving power through the gamma driving power line and generating a measurement of the gamma driving power; and
a timing controller configured to control the gate driving circuit and control the data driving circuit to change the analog data voltage supplied to the display panel according to the measurement of the gamma driving power transferred from the gamma driving power detection circuit
wherein, when the data driving circuit includes a plurality of source driving integrated circuits, the analog data voltage is changed based on a source driving integrated circuit with a largest variation in the gamma driving power among the plurality of source driving integrated circuits.