公开(公告)号：US20240329774A1

公开(公告)日：2024-10-03

申请号：US18515817

申请日：2023-11-21

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： JIN TAEK HONG ,  JA SEUNG KU

IPC: G06F3/041

CPC classification number: G06F3/04166 ,  G06F3/04184 ,  G06F3/0446 ,  G06F2203/04107

Abstract: A sensor device includes a sensor array including a plurality of sensor nodes, signal lines electrically connected to the plurality of sensor nodes, and a sensor driver configured to sense a user's touch of the sensor array by selecting the plurality of sensor nodes through the signal lines, apply a first pulse signal having a same phase as a target pulse signal of a selected sensor node to at least one first sensor node adjacent to the selected sensor node among the plurality of sensor nodes, and apply a second pulse signal having a phase opposite to that of the first pulse signal to at least one second sensor node among the plurality of sensor nodes. The sensor driver sets at least one sensor node adjacent to or spaced apart from the first sensor node as the second sensor node according to a preset mode.

公开(公告)号：US20240281090A1

公开(公告)日：2024-08-22

申请号：US18457419

申请日：2023-08-29

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： JA SEUNG KU ,  JIN WOO KIM ,  JIN TAEK HONG

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/04166 ,  G06F3/0412 ,  G06F3/0418 ,  G06F3/044

Abstract: A display device includes a touch panel including touch electrodes and a touch controller. The touch controller provides a driving signal to the touch electrodes and detects a touch and a touch position by sensing a change in values of capacitance formed between the touch electrodes and a common electrode. The touch controller includes a first touch driving IC corresponding to first touch electrodes in a first sensing area and a second touch driving IC corresponding to second touch electrodes included in a second sensing area. A first driving signal provided to the first touch electrodes from the first touch driving IC and a second driving signal provided to the second touch electrodes from the second touch driving IC have different frequencies.