公开(公告)号：US20240310956A1

公开(公告)日：2024-09-19

申请号：US18367481

申请日：2023-09-13

Applicant: Samsung Display Co., Ltd.

Inventor： Jin Woo KIM ,  Ja Seung KU ,  Jung Ha SON ,  Dong Chun LEE ,  Jin Taek HONG

IPC: G06F3/041

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

Abstract: A sensor device includes: a sensor panel including sensors arranged in a matrix, and sensor lines electrically connected to the sensors on a one-to-one basis; and a sensor driver configured to receive, using a reference signal having at least two or more duty cycles, sensing signals from the sensors through the sensor lines.

公开(公告)号：US20240077973A1

公开(公告)日：2024-03-07

申请号：US18189927

申请日：2023-03-24

Applicant: Samsung Display Co., LTD.

Inventor： Jin Woo KIM ,  Ja Seung KU ,  Chang Bum KIM ,  Dong Chun LEE

IPC: G06F3/041

CPC classification number: G06F3/04166 ,  G06F3/0418 ,  G06F3/0446

Abstract: A sensor device includes: a sensor panel including sensors arranged in a matrix form and sensor lines electrically connected to the sensors one-to-one; and a sensor driver configured to receive sensing signals from the sensors through the sensor lines, wherein the sensor driver is configured to simultaneously receive a first sensing signal from a first sensor using a first reference signal and a second sensing signal from a second sensor using a second reference signal, wherein the first reference signal and the second reference signal have a same waveform, a phase of the second reference signal is different from a phase of the first reference signal, and wherein a phase of the second sensing signal is different from a phase of the first sensing signal.

公开(公告)号：US20240168627A1

公开(公告)日：2024-05-23

申请号：US18328336

申请日：2023-06-02

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Dong Chun LEE

IPC: G06F3/04886 ,  G06V40/12 ,  G06V40/13

CPC classification number: G06F3/04886 ,  G06V40/13 ,  G06V40/1365

Abstract: A display device includes a display, a touch sensor, and a controller. The touch sensor detects first fingers and second fingers input to a touch sensing area overlapping a display area. The first fingers are located on a user's left hand, and the second fingers are located on a user's right hand. The controller displays a virtual keyboard on the display area when an arrangement of the first fingers and the second fingers corresponds to a predetermined arrangement, and when a sum of the number of the first fingers and the number of the second fingers detected by the touch sensor is greater than or equal to a predetermined reference value.

公开(公告)号：US20250077014A1

公开(公告)日：2025-03-06

申请号：US18597054

申请日：2024-03-06

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Dong Chun LEE

IPC: G06F3/041 ,  G06F3/044

Abstract: A touch detection circuit includes: a touch sensing unit including a plurality of driving electrodes and a plurality of sensing electrodes arranged to intersect the driving electrodes; first through n-th unique signal generators transmitting first through n-th unique signals, which have different voltage or current characteristics, to bodies of first through n-th users, respectively; at least one motion detection circuit detecting a touch direction and touch position of each of the first through n-th users; and a touch driving circuit driving the driving electrodes and the sensing electrodes to detect touch detection signals and generate touch position coordinate information, wherein the touch driving circuit selects any one user, of the first through n-th users, who performed a touch operation on the touch sensing unit according to a preset priority, and generates and outputs touch position coordinate information according to the touch position of the selected user.

公开(公告)号：US20240231533A9

公开(公告)日：2024-07-11

申请号：US18331639

申请日：2023-06-08

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Dong Chun LEE

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/04166 ,  G06F3/0418 ,  G06F3/0446

Abstract: A touch sensor includes first touch electrodes, second touch electrodes that form mutual capacitances with the first touch electrodes, and a controller that generates touch data by applying a scan signal to each of scan lines connected to the first touch electrodes during substantially a same time and that receives sensing signals from the second touch electrodes through sensing lines. The controller applies a plurality of multiple pulses and a target pulse as the scan signal to each of the scan lines in a plurality of time periods. Each of the plurality of multiple pulses includes a first pulse and a second pulse of phases opposite to each other. Multiple pulses applied to scan lines adjacent to each other among the scan lines have phases opposite to each other.

公开(公告)号：US20240134477A1

公开(公告)日：2024-04-25

申请号：US18331639

申请日：2023-06-07

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Dong Chun LEE

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/04166 ,  G06F3/0418 ,  G06F3/0446

Abstract: A touch sensor includes first touch electrodes, second touch electrodes that form mutual capacitances with the first touch electrodes, and a controller that generates touch data by applying a scan signal to each of scan lines connected to the first touch electrodes during substantially a same time and that receives sensing signals from the second touch electrodes through sensing lines. The controller applies a plurality of multiple pulses and a target pulse as the scan signal to each of the scan lines in a plurality of time periods. Each of the plurality of multiple pulses includes a first pulse and a second pulse of phases opposite to each other. Multiple pulses applied to scan lines adjacent to each other among the scan lines have phases opposite to each other.