Invention Grant
- Patent Title: Touch controller, touch sensing device including the touch controller, operating method of touch controller
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Application No.: US17397223Application Date: 2021-08-09
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Publication No.: US11656715B2Publication Date: 2023-05-23
- Inventor: Sungyong Cho , Jinchul Lee , Yunrae Jo , Bumsoo Kim , Choonghoon Lee , Yoon-Kyung Choi
- Applicant: Samsung Electronics Co., Ltd.
- Applicant Address: KR Suwon-si
- Assignee: SAMSUNG ELECTRONICS CO., LTD.
- Current Assignee: SAMSUNG ELECTRONICS CO., LTD.
- Current Assignee Address: KR Gyeonggi-Do
- Agency: Harness, Dickey & Pierce, P.L.C.
- Priority: KR 20210001058 2021.01.05
- Main IPC: G06F3/041
- IPC: G06F3/041 ; G06F3/0354 ; G09G3/3225 ; G06F3/044

Abstract:
A touch sensing device may include 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, 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.
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