公开(公告)号：US20250138687A1

公开(公告)日：2025-05-01

申请号：US18821840

申请日：2024-08-30

Applicant: Samsung Display Co., Ltd.

Inventor： KYOWON KU ,  GWANG-BUM KO ,  MIYOUNG KIM

IPC: G06F3/044 ,  G06F3/041

Abstract: A method of driving a sensor layer of an electronic device includes, at a first time, driving a first connection line with a first signal, the first connection line connected to a first end of each of first electrodes, driving a second connection line with the first signal, the second connection line connected to a second end of each of first group electrodes of the first electrodes, and driving a third connection line with a second signal different from the first signal, the third connection line connected to a second end of each of second group electrodes of the first electrodes, and generating a magnetic field with the first connection line, the first group electrodes, and the second group electrodes to charge a RLC resonance circuit of a pen at a first time.

公开(公告)号：US20230214052A1

公开(公告)日：2023-07-06

申请号：US17964702

申请日：2022-10-12

Applicant: Samsung Display Co., Ltd.

Inventor： JEONGHEON LEE ,  SOONGYU LEE ,  KYOWON KU ,  JUNGHAK KIM ,  HANSU CHO

IPC: G06F3/041 ,  G06F3/044 ,  H01L27/32

CPC classification number: G06F3/04166 ,  G06F3/04186 ,  G06F3/0446 ,  G06F3/0443 ,  H01L27/323 ,  G06F3/0412 ,  G06F2203/04111

Abstract: An electronic device includes: a display layer to display an image; a sensor layer on the display layer; and a sensor driver electrically connected with the sensor layer, and to be selectively driven in a first mode for detecting a passive input, or a second mode for detecting an active input. In the second mode, the sensor driver is to: receive a plurality of sensing signals from the sensor layer; divide the plurality of sensing signals into a valid signal and a noise signal; calculate intermediate coordinates based on the valid signal; and correct the intermediate coordinates based on the noise signal to calculate input coordinates.

公开(公告)号：US20250036236A1

公开(公告)日：2025-01-30

申请号：US18743227

申请日：2024-06-14

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： KYOWON KU ,  SANGHYUN LIM

IPC: G06F3/041 ,  G06F3/044

Abstract: An electronic device including: a sensor layer; and a sensor driver to operate in a first mode for sensing a touch input or in a second mode for sensing a pen input, the sensor layer including: first electrodes arranged along a first direction and extending along a second direction; second electrodes arranged along the second direction and extending along the first direction; third electrodes arranged along the first direction and extending along the second direction; a fourth electrode arranged along the second direction, extending along the first direction, and including sub-electrodes; first trace lines connected to the first electrodes; second trace lines connected to the second electrodes; a third trace line connected to the third electrodes; and a fourth trace line connected to the fourth electrode and connected to an end of each of the sub-electrodes.

公开(公告)号：US20240211088A1

公开(公告)日：2024-06-27

申请号：US18462786

申请日：2023-09-07

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： MIYOUNG KIM ,  JINA KANG ,  KYOWON KU ,  SANGHYUN LIM

IPC: G06F3/046 ,  G06F3/044 ,  H10K59/40

CPC classification number: G06F3/046 ,  G06F3/0445 ,  G06F3/0446 ,  H10K59/40 ,  G06F3/0412 ,  G06F2203/04106

Abstract: Disclosed is a display device which includes a display panel and an input sensor unit. The input sensor unit includes a base layer, a plurality of sensing electrodes, a plurality of lines, and a peripheral pen sensing electrode. The plurality of sensing electrodes include a first sensing electrode, a second sensing electrode, a pen sensing electrode 1-1, a pen sensing electrode 1-2, and a second pen sensing electrode. A first width of the peripheral pen sensing electrode in a first direction is greater than a second width of each of the plurality of lines in the first direction.

公开(公告)号：US20240302931A1

公开(公告)日：2024-09-12

申请号：US18658605

申请日：2024-05-08

Applicant: Samsung Display Co., Ltd.

Inventor： GAYOUNG KIM ,  JINA KANG ,  KYOWON KU ,  YOUNG-SEOK SEO ,  Hyunjee JEON

IPC: G06F3/044 ,  G06F3/046

CPC classification number: G06F3/0446 ,  G06F3/046 ,  G06F2203/04106

Abstract: Disclosed are an input sensing unit and a display device including the input sensing unit. The input sensing unit includes a first sensing electrode extending in a first direction, a second sensing electrode extending in a second direction and insulated from the first sensing electrode, a first pen sensing electrode extending in the first direction and including a 1-1st pen sensing electrodes and a 1-2nd pen sensing electrode disposed on different layers and overlapping each other, and a second pen sensing electrode extending in the second direction and including a 2-1st pen sensing electrodes and a 2-2nd pen sensing electrode disposed on different layers and overlapping each other. The 1-1st pen sensing electrode is disposed adjacent to the first sensing electrode on the same layer, and the 2-1st pen sensing electrode is disposed adjacent to the second sensing electrode on the same layer.

公开(公告)号：US20230214030A1

公开(公告)日：2023-07-06

申请号：US18084436

申请日：2022-12-19

Applicant: Samsung Display Co., Ltd.

Inventor： JUNGHAK KIM ,  KYOWON KU ,  YOUNGSIK KIM ,  HANSU CHO

IPC: G06F3/0354 ,  G06F3/038

CPC classification number: G06F3/03545 ,  G06F3/038

Abstract: An input device includes: a housing; a tip electrode protruding outside of the housing and configured to transmit a downlink signal to the outside; a reception electrode inside the housing and configured to receive an uplink signal from the outside; and a communication circuit electrically connected to the tip electrode and the reception electrode and configured to receive the uplink signal from the reception electrode or to transmit the downlink signal to the tip electrode, wherein a surface of the reception electrode has a concave-convex structure.

公开(公告)号：US20220147212A1

公开(公告)日：2022-05-12

申请号：US17444906

申请日：2021-08-11

Applicant: Samsung Display Co., Ltd.

Inventor： JUNGHAK KIM ,  YOUNGSIK KIM ,  KYOWON KU ,  JEONGHEON LEE

IPC: G06F3/041 ,  G06F3/044 ,  G06F3/0354

Abstract: An electronic device, includes: a display panel; and an input sensor on the display panel, wherein the input sensor includes a plurality of sensing electrodes, each having a first region and a second region that surrounds the first region, each of the plurality of sensing electrodes including a pen electrode configured to detect an input tool and a touch electrode configured to detect a touch input, wherein the pen electrode is at the first region, and wherein the touch electrode is at the second region.

公开(公告)号：US20250138686A1

公开(公告)日：2025-05-01

申请号：US18795649

申请日：2024-08-06

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： GWANG-BUM KO ,  KYOWON KU ,  HYUNGBAE KIM ,  KANGWON LEE

IPC: G06F3/044 ,  G06F3/041

Abstract: An electronic device includes a display layer, a sensor layer disposed over the display layer, and a lower conductive layer disposed under the display layer. The sensor layer includes a plurality of first electrodes that are arranged in a first direction and extend in a second direction crossing the first direction. A plurality of second electrodes are arranged in the second direction and extend in the first direction. A plurality of third electrodes are arranged in the first direction and extend in the second direction and have first ends that are connected together. The lower conductive layer includes a plurality of fourth electrodes that are arranged in the second direction and extend in the first direction and have first ends that are connected together.

公开(公告)号：US20250036245A1

公开(公告)日：2025-01-30

申请号：US18767405

申请日：2024-07-09

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： MIYOUNG KIM ,  KYOWON KU ,  GWANG-BUM KO

IPC: G06F3/044 ,  G06F1/16 ,  G06F3/0354 ,  G06F3/041

Abstract: An interface device includes an electronic device and an input device. The electronic device includes a display layer that includes a display area that includes a foldable area and non-foldable areas, a sensor layer that includes a plurality of detection electrodes, and a sensor driving unit that drives the sensor layer. The plurality of detection electrodes include a first pen sensing electrode and a second pen sensing electrode, and the sensor driving unit transmits to the first pen sensing electrode one of a first sensing signal that has a first driving frequency or a second sensing signal that has a second driving frequency that differs from the first driving frequency according to a position of the input device with respect to the display area.

公开(公告)号：US20240127740A1

公开(公告)日：2024-04-18

申请号：US18234792

申请日：2023-08-16

Applicant: Samsung Display Co., Ltd.

Inventor： KYOWON KU ,  SANGHYUN LIM

IPC: G09G3/32

CPC classification number: G09G3/32

Abstract: An input sensing device includes: an input sensor including a transmission electrode, a first reception electrode, and a second reception electrode; and a readout circuit configured to provide a transmit signal to the transmission electrode, to receive a first receive signal from the first reception electrode, and to receive a second receive signal from the second reception electrode, wherein the readout circuit includes: a switching circuit configured to transfer the first receive signal and the second receive signal to a first node and a second node, respectively, during a touch sensing period and to transfer one of the first receive signal and the second receive signal to the first node and the second node during a compensation period; a first output circuit configured to convert a signal of the first node into a first sensing signal; and a second output circuit configured to convert a signal of the second node into a second sensing signal.