US 11,989,371 B2
Display device and operating method thereof
Sanghyun Heo, Hwaseong-si (KR); Jiwoong Kim, Suwon-si (KR); Hyunggun Ma, Seoul (KR); Kyungtea Park, Seoul (KR); Seongan Park, Hwaseong-si (KR); Seongjoo Lee, Suwon-si (KR); and Taehun Lee, Hwaseong-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed by SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed on May 26, 2022, as Appl. No. 17/825,862.
Claims priority of application No. 10-2021-0124569 (KR), filed on Sep. 17, 2021.
Prior Publication US 2023/0090024 A1, Mar. 23, 2023
Int. Cl. G06F 3/041 (2006.01); G06F 3/044 (2006.01); H10K 59/122 (2023.01)
CPC G06F 3/04182 (2019.05) [G06F 3/041662 (2019.05); G06F 3/04164 (2019.05); G06F 3/0446 (2019.05); G06F 2203/04106 (2013.01); H10K 59/122 (2023.02)] 21 Claims
OG exemplary drawing
 
1. A display device comprising:
a display panel;
an input sensor disposed on the display panel and comprising a plurality of first sensing electrodes and a plurality of second sensing electrodes; and
a readout circuit comprising a band pass filter electrically connected to the plurality of first sensing electrodes and the plurality of second sensing electrodes to remove noise of a receiving signal received from the plurality of first sensing electrodes and the plurality of second sensing electrodes,
wherein the readout circuit determines which of the first sensing electrodes from among the plurality of first sensing electrodes are influenced by a touch based on the receiving signal as influenced electrodes, during a first sensing mode, and
wherein the readout circuit adjusts a passband of the band pass filter based on the number of influenced electrodes and transmits a transmitting signal to the influenced electrodes, during a second sensing mode.