Patent ID: 11862057
Assignee: LG DISPLAY CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 17:
18. A sensing circuit comprising:
a resistor; and
a switch configured to serially connect the resistor to a power line that supplies a pixel driving voltage to a plurality of pixels of a display panel that are divided into a plurality of columns of pixel blocks during a sensing period, and configured to disconnect the resistor from the power line during a display period during which an image is displayed by the display panel,
wherein the sensing circuit is configured to sequentially sense each pixel block included in a column of pixel blocks during the sensing period by measuring a current flowing through the power line connected to a subset of pixels from the plurality of the pixels included in a target pixel block from the column responsive to sensing data being applied to the subset of pixels during the sensing mode.