公开(公告)号：US12277286B2

公开(公告)日：2025-04-15

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 ,  G06F3/044

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：US12182356B2

公开(公告)日：2024-12-31

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

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：US12032787B2

公开(公告)日：2024-07-09

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.