US 11,656,715 B2
Touch controller, touch sensing device including the touch controller, operating method of touch controller
Sungyong Cho, Hwaseong-si (KR); Jinchul Lee, Seoul (KR); Yunrae Jo, Yongin-si (KR); Bumsoo Kim, Hwaseong-si (KR); Choonghoon Lee, Seoul (KR); and Yoon-Kyung Choi, Seongnam-si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Gyeonggi-Do (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Aug. 9, 2021, as Appl. No. 17/397,223.
Claims priority of application No. 10-2021-0001058 (KR), filed on Jan. 5, 2021.
Prior Publication US 2022/0214791 A1, Jul. 7, 2022
Int. Cl. G06F 3/041 (2006.01); G06F 3/0354 (2013.01); G09G 3/3225 (2016.01); G06F 3/044 (2006.01)
CPC G06F 3/04162 (2019.05) [G06F 3/03545 (2013.01); G06F 3/0412 (2013.01); G06F 3/04164 (2019.05); G06F 3/04166 (2019.05); G09G 3/3225 (2013.01); G06F 3/0446 (2019.05); G09G 2320/0247 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A touch sensing device comprising:
a touch sensor array including at least one beacon driving section and at least one compensation section, the at least one beacon driving section including a plurality of first touch electrodes, and the at least one compensation section including a plurality of second touch electrodes; and
a touch controller connected to the touch sensor array through at least one first driving channel and at least one second driving channel, and
the touch controller is configured to, during a first uplink period for communication with an active pen,
provide at least one beacon signal to the at least one first driving channel, and
provide at least one compensation signal to the at least one second driving channel, the at least one compensation signal being an inverse of the at least one beacon signal.