公开(公告)号：US20230251746A1

公开(公告)日：2023-08-10

申请号：US18135376

申请日：2023-04-17

Applicant: SAMSUNG ELECTRONICS CO., LTD

Inventor： CHADONG KIM ,  BUMSOO KIM ,  JONGMIN BAEK ,  GYEONGGON LEE ,  JINCHUL LEE ,  CHOONGHOON LEE ,  YUNRAE JO ,  YOONKYUNG CHOI

IPC: G06F3/044

CPC classification number: G06F3/044 ,  G06F2203/04112

Abstract: A sensing device includes a touch panel including first and second sensor electrodes, and a touch panel controller acquiring a sensing signal from the touch panel and detecting a user input based on the sensing signal. The touch panel controller acquires the sensing signal from at least one of the first sensor electrodes and the second sensor electrodes in a first mode operating at a first power. The touch panel controller selects a first transmitting electrode, a second transmitting electrode, and receiving electrodes from one of the first sensor electrodes and the second sensor electrodes, inputs a first driving signal to the first transmitting electrode, and inputs a second driving signal having a phase difference of 180 degrees with respect to the first driving signal to the second transmitting electrode in a second mode operating at a second power and a third mode in which a sensing operation is performed.

公开(公告)号：US20250060849A1

公开(公告)日：2025-02-20

申请号：US18937187

申请日：2024-11-05

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： CHADONG KIM ,  BUMSOO KIM ,  JONGMIN BAEK ,  GYEONGGON LEE ,  JINCHUL LEE ,  CHOONGHOON LEE ,  YUNRAE JO ,  YOONKYUNG CHOI

IPC: G06F3/044

Abstract: A sensing device includes a touch panel including first and second sensor electrodes, and a touch panel controller acquiring a sensing signal from the touch panel and detecting a user input based on the sensing signal. The touch panel controller acquires the sensing signal from at least one of the first sensor electrodes and the second sensor electrodes in a first mode operating at a first power. The touch panel controller selects a first transmitting electrode, a second transmitting electrode, and receiving electrodes from one of the first sensor electrodes and the second sensor electrodes, inputs a first driving signal to the first transmitting electrode, and inputs a second driving signal having a phase difference of 180 degrees with respect to the first driving signal to the second transmitting electrode in a second mode operating at a second power and a third mode in which a sensing operation is performed.

公开(公告)号：US20240201808A1

公开(公告)日：2024-06-20

申请号：US18227048

申请日：2023-07-27

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： JINBONG KIM ,  BYUNGHWEE PARK ,  YEONWOO KU ,  MINSUNG KIM ,  Heejin LEE ,  YUNRAE JO

IPC: G06F3/041 ,  G06F3/044 ,  G09G3/20 ,  G09G3/3233

CPC classification number: G06F3/0412 ,  G06F3/04164 ,  G06F3/0443 ,  G06F3/0446 ,  G09G3/2007 ,  G09G3/3233 ,  G09G2300/0842 ,  G09G2310/08

Abstract: A touch display device, including a display panel including: a plurality of source lines configured to provide a plurality of source signals to a plurality of pixels, and a common electrode coupled to the plurality of source lines; a plurality of touch electrodes coupled to the common electrode, and configured to provide a plurality of touch signals according to a plurality of touch driving signals received from the common electrode; and a touch driving circuit configured to generate a plurality of pieces of touch information based on a difference between the plurality of touch signals and each of the plurality of touch driving signals.