Patent ID: 11893186
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 16:
17. A display device, comprising:
a display panel that includes pixels;
first driving electrodes, second driving electrodes, and sensing electrodes disposed on the display panel; and
a sensing driver that transmits a first driving signal to the first driving electrodes at a first frequency, transmits a second driving signal to the second driving electrodes at a second frequency, and determine a touch or approach of an external object based on sensing signals received from the sensing electrodes,
wherein the sensing driver comprises analog front-end circuits that separate a sensing signal of the first frequency and a sensing signal of the second frequency that are received from the respective sensing electrodes, and generate digital sensing data based on a result of recombining the separated sensing signals, and
wherein a frequency of the sensing signal that is received from each of the sensing electrodes varies in response to the first driving signal and the second driving signal.