Patent ID: 11862109
Assignee: LG DISPLAY CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 15:
16. A display device, comprising:
an analog-to-digital converter configured to receive a sensing voltage reflecting a characteristic value of at least one subpixel from a reference voltage line and to output a digital value corresponding to the received sensing voltage;
a controller configured to receive the digital value from the analog-to-digital converter and to sense the characteristic value of the at least one subpixel when the received digital value is a first saturation value or a second saturation value; and
a power management circuit configured to change an analog-to-digital converting reference voltage under control of the controller,
wherein the controller is configured to control the analog-to-digital converter to change a voltage level of the analog-to-digital converting reference voltage during an off-sensing process period and to perform a sensing driving operation to compensate for characteristic values of the at least one subpixels during the off-sensing process period.