Patent ID: 11929038
Assignee: LG DISPLAY CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 12:
13. A data driving circuit comprising:
an analog-to-digital converter configured to sense a voltage on a reference voltage line electrically connected to a source node of a driving transistor disposed in a display panel through a first path during a first detecting period and through a second path during a second detecting period before performing a sensing operation of a characteristic value of the driving transistor;
a data output circuit configured to convert digital image data transferred through a timing controller to an analog data voltage, and supply the analog data voltage to a corresponding subpixel through a plurality of data lines; and
a sampling switch configured to control on and off states of the reference voltage line for a predetermined time in an aging period so that a predetermined level of heat is generated from the reference voltage line.