Patent ID: 11869447
Assignee: LG DISPLAY CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 17:
18. A light emitting display device comprising:
a display panel configured to display an image, the display panel including a plurality of sub-pixels, a reference line connected to the plurality of sub-pixels, and a plurality of data lines, each of the plurality of data lines connected to a corresponding one of the plurality of sub-pixels; and
a data driver comprising a plurality of data voltage output circuits configured to drive the display panel via the plurality of data lines and a panel sensing circuit configured to sense the display panel through the reference line, each of the plurality of data voltage output circuits connected to a corresponding one of the data lines,
wherein a first data voltage output circuit from the plurality of data voltage output circuits is configured to output a sensing voltage to a first data line connected to a first sub-pixel from the plurality of sub-pixels that corresponds to the first data voltage output circuit, and a second data voltage output circuit from the plurality of data voltage output circuits is configured to output a pre-charge voltage to the reference line that is applied to a sensing node of the first sub-pixel while the sensing voltage is applied to the first sub-pixel.