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：US20240192801A1

公开(公告)日：2024-06-13

申请号：US18233792

申请日：2023-08-14

Applicant: Samsung Display Co., LTD.

Inventor： Jin Taek HONG ,  Ja Seung KU ,  Jin Woo KIM

IPC: G06F3/041

CPC classification number: G06F3/04166

Abstract: A sensor device including: a sensor array including sensor nodes; signal lines connected to the sensor nodes; and a sensor driver configured to: select each of the sensor nodes through the signal lines to sense a touch of a user that is adjacent to the sensor array; apply, through a first signal line, a first pulse signal to at least one first sensor node adjacent to the selected sensor node among the sensor nodes; and apply, through a second signal line, a second pulse signal having a polarity reverse to a polarity of the first pulse signal to at least one second sensor node among the sensor nodes, wherein the sensor driver electrically connects the first signal line to the second signal line to adjust voltage levels of the first and the second pulse signals.

公开(公告)号：US20240069674A1

公开(公告)日：2024-02-29

申请号：US18135625

申请日：2023-04-17

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jin Taek HONG ,  Ja Seung KU

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/04182 ,  G06F3/0446

Abstract: A sensor device includes: first sensors; second sensors which forms a capacitance with the first sensors; and a sensor driver which transmits driving signals to the first sensors through first sensor lines, and receives sensing signals from the second sensors through second sensor lines. The sensor driver sequentially transmits the driving signals to the first sensors, and transmits, during each period of transmitting the driving signals, an offset signal, which is identical in frequency to and different in phase from the driving signals, to at least one selected from first sensors which does not receive the driving signals among the first sensor. The sensor driver sets at least one selected from a slew rate and a voltage level of the offset signal to a value different from a corresponding value of a corresponding driving signal.