公开(公告)号：US11941203B2

公开(公告)日：2024-03-26

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 ,  H10K59/40

CPC classification number: G06F3/04166 ,  G06F3/04186 ,  G06F3/0443 ,  G06F3/0446 ,  H10K59/40 ,  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：US11770961B2

公开(公告)日：2023-09-26

申请号：US17207489

申请日：2021-03-19

Applicant: Samsung Display Co., Ltd.

Inventor： Jinwoo Kim ,  Jlna Kang ,  Kyowon Ku ,  Soongyu Lee ,  Jeongheon Lee ,  Byeongkyu Jeon ,  Chung-Won Choi

IPC: G06F3/044 ,  H10K59/40 ,  G06F3/041 ,  G06F3/0354

CPC classification number: H10K59/40 ,  G06F3/03545 ,  G06F3/0412 ,  G06F3/0416 ,  G06F3/0445 ,  G06F3/041662

Abstract: An electronic device includes: a display layer; a sensor layer on the display layer and having an active area and a peripheral area adjacent to the active area, wherein the sensor layer is configured to operate in a first mode, in which a first input by an input device is sensed, and a second mode, in which a second input by touch is sensed; and a controller configured to control the sensor layer, wherein, in the first mode, the controller is configured to define the active area into a first area and a second area different from the first area, which are defined based on a coordinate at which the first input is sensed, and in the first mode, the controller is configured to provide an uplink signal to the first area and provide a reverse-phase signal having a reverse phase of the uplink signal to the second area.

公开(公告)号：US12189880B2

公开(公告)日：2025-01-07

申请号：US18474197

申请日：2023-09-25

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Gwang-Bum Ko ,  Kyowon Ku

IPC: G06F3/041 ,  G06F1/16 ,  G06F3/046

Abstract: A display device includes a display panel that includes a display region on which a pixel is disposed and a non-display region around the display region. An input sensor is disposed on the display panel and is configured to detect an electromagnetically induced current. A conductive layer is disposed below the display panel and overlaps the display region. The conductive layer includes a first unit pattern. The first unit pattern includes a first extension part, and a plurality of second extension parts that extend from the first extension part in a direction intersecting a direction of the first extension part and are disposed on one side of the first extension part.

公开(公告)号：US11625118B2

公开(公告)日：2023-04-11

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：US11594068B2

公开(公告)日：2023-02-28

申请号：US17248888

申请日：2021-02-11

Applicant: Samsung Display Co., Ltd.

Inventor： Soongyu Lee ,  Jinwoo Kim ,  Kyowon Ku ,  Youngsik Kim

IPC: G06K9/00 ,  G06V40/12 ,  H01L27/32 ,  G06V40/50 ,  G06V40/13 ,  G09G5/00

Abstract: A display device includes: a display unit configured to display an image; a fingerprint sensing unit on one surface of the display unit and comprising fingerprint sensing pixels configured to sense a fingerprint; and a readout circuit configured to receive a fingerprint sensing signal from the fingerprint sensing pixels, wherein the readout circuit is configured to generate and output a normal fingerprint image and a dry fingerprint image, which correspond to the fingerprint sensing signal, during a fingerprint registration mode.

公开(公告)号：US11410456B2

公开(公告)日：2022-08-09

申请号：US17088583

申请日：2020-11-04

Applicant: Samsung Display Co., Ltd.

Inventor： Soongyu Lee ,  Kyowon Ku ,  Youngsik Kim ,  Junghak Kim ,  Jinwoo Kim

IPC: G06V40/12 ,  G09G3/3208 ,  H01L27/32 ,  G06V40/13

Abstract: A method of driving a display device including driving a display panel including a sensing area defined above a fingerprint sensor in an initial mode, driving the sensing area in a first color pattern and a second color pattern having a color different from a color of the first color pattern, sensing a fingerprint through the fingerprint sensor that receives a light reflected by the fingerprint when the fingerprint is adjacent to the sensing area, determining whether the sensed fingerprint is a duplicate fingerprint, and performing a user authentication mode when the sensed fingerprint is a normal fingerprint. The first color pattern has a light transmittance higher than a light transmittance of the second color pattern.

公开(公告)号：US11244141B2

公开(公告)日：2022-02-08

申请号：US17104927

申请日：2020-11-25

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Kyowon Ku ,  Junghak Kim ,  Youngsik Kim ,  Jinwoo Kim ,  Soongyu Lee

IPC: G06K9/00 ,  H01L25/18 ,  G06F3/041

Abstract: A display device, including: a display unit including a light emitting element that emits light, and a biometric information sensing unit disposed below the display unit, is provided, wherein the biometric information sensing unit receives light reflected by a biometric input, wherein the biometric information sensing unit includes: an optical system including a transmission part that passes the reflected light and an absorption part around the transmission part, wherein the absorption part absorbs the reflected light and pressure; a light detection sensor disposed below the transmission part of the optical system, wherein the light detection sensor receives the reflected light that passes through the transmission part; and a pressure detection sensor disposed below the absorption part of the optical system, wherein the pressure detection sensor detects the pressure that is transferred from the absorption part.

公开(公告)号：US20210174050A1

公开(公告)日：2021-06-10

申请号：US17104927

申请日：2020-11-25

Applicant: Samsung Display Co., Ltd.

Inventor： Kyowon Ku ,  Junghak Kim ,  Youngsik Kim ,  Jinwoo Kim ,  Soongyu Lee

IPC: G06K9/00 ,  G06F3/041 ,  H01L25/18

Abstract: A display device, including: a display unit including a light emitting element that emits light, and a biometric information sensing unit disposed below the display unit, is provided, wherein the biometric information sensing unit receives light reflected by a biometric input, wherein the biometric information sensing unit includes: an optical system including a transmission part that passes the reflected light and an absorption part around the transmission part, wherein the absorption part absorbs the reflected light and pressure; a light detection sensor disposed below the transmission part of the optical system, wherein the light detection sensor receives the reflected light that passes through the transmission part; and a pressure detection sensor disposed below the absorption part of the optical system, wherein the pressure detection sensor detects the pressure that is transferred from the absorption part.