US 11,893,186 B2
Input sensing device and display device including the same
Ji Woong Kim, Yongin-si (KR); Moon Jae Jeong, Yongin-si (KR); Hyung Gun Ma, Yongin-si (KR); Tae Hun Lee, Yongin-si (KR); Keum Dong Jung, Yongin-si (KR); and Sang Hyun Heo, Yongin-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed by SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed on Feb. 28, 2023, as Appl. No. 18/176,440.
Claims priority of application No. 10-2022-0080033 (KR), filed on Jun. 29, 2022.
Prior Publication US 2024/0004499 A1, Jan. 4, 2024
Int. Cl. G06F 3/041 (2006.01); G06F 3/044 (2006.01)
CPC G06F 3/04182 (2019.05) [G06F 3/0446 (2019.05); G06F 3/0447 (2019.05)] 25 Claims
OG exemplary drawing
 
1. An input sensing device, comprising:
first driving electrodes, second driving electrodes, and sensing electrodes; 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 determines 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 from a sensing signal of the second frequency that are received from the respective sensing electrodes, and generates digital sensing data based on a result of recombining the separated sensing signals.