公开(公告)号：US20220012448A1

公开(公告)日：2022-01-13

申请号：US17367165

申请日：2021-07-02

Applicant: Samsung Display Co., Ltd.

Inventor： Kyoung Hun BEEN ,  Jin Woo KIM ,  Byeong Kyu JEON ,  Soon Gyu LEE

IPC: G06K9/00 ,  G01S15/89

Abstract: An ultrasonic fingerprint sensing method includes: generating a first ultrasonic wave using a first frequency; receiving a first signal generated by reflection of the first ultrasonic wave from each of a ridge and a valley of a fingerprint; generating a first image based on the first signal; comparing the first image with a registered reference image to generate a matching score; and in response to the matching score being less than a threshold value, generating a second image using a second frequency.

公开(公告)号：US20210397862A1

公开(公告)日：2021-12-23

申请号：US17224421

申请日：2021-04-07

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Soon Gyu LEE ,  Jin Woo KIM ,  Jin A KANG ,  Young Sik KIM

IPC: G06K9/00 ,  G09G5/10 ,  G06F3/044 ,  G06K9/20 ,  G09G3/20

Abstract: A method for driving a display device is performed by the display device. The method includes: displaying a first image including user convenience information through a display panel; generating sensing data corresponding to a fingerprint sensing area by using a photoelectric sensor; and determining whether a sensed fingerprint corresponding to the sensing data is a fake fingerprint by comparing expected sensing light illuminance information based on the first image with sensed light illuminance information of the sensing data. The first image includes a first color pattern in the fingerprint sensing area of the display panel. A fake-determination image pattern includes the first color pattern and a second color pattern different from the first color pattern.

公开(公告)号：US20240046887A1

公开(公告)日：2024-02-08

申请号：US18308490

申请日：2023-04-27

Applicant: Samsung Display Co., LTD.

Inventor： So Young PARK ,  Soon Gyu LEE

IPC: G09G3/3291 ,  G06F3/041

CPC classification number: G09G3/3291 ,  G06F3/0412 ,  G09G2320/0247 ,  G09G2360/145

Abstract: A display device includes: display pixels in a display area of a display panel; light-sensing pixels alternately arranged with the display pixels in the display area; a display scan driver configured to sequentially provide display scan signals to the display pixels through display scan lines; a flicker detection circuit configured to detect an occurrence of flicker in the display area by using light-sensing signals received from the light-sensing pixels; a touch sensing circuit configured to detect a touch from a user and coordinate data of a location of the touch via touch electrodes of a touch sensor; and a main driving circuit configured to maintain or change a driving mode of the touch sensor in units of at least one frame based on a flicker detection result and a flicker degree analysis result from the flicker detection circuit.

公开(公告)号：US20230315225A1

公开(公告)日：2023-10-05

申请号：US18176932

申请日：2023-03-01

Applicant: Samsung Display Co., LTD.

Inventor： Soon Gyu LEE

IPC: G06F3/041 ,  G06F3/044 ,  G06V40/13

CPC classification number: G06F3/0412 ,  G06F3/044 ,  G06V40/1306

Abstract: A display device includes: a display panel including a sensing area having display pixels and sensing pixels; a sensing panel overlapping with the display panel, the sensing panel including sensing electrodes; a fingerprint sensor overlapping with the sensing panel, the fingerprint sensor having light emitting elements of the display pixels and light receiving elements of the sensing pixels; a panel driver configured to drive the display panel; and a sensor driver configured to drive the sensing panel and the fingerprint sensor, wherein the panel driver and the sensor driver are configured to vary a driving mode according to an operation of the fingerprint sensor.

公开(公告)号：US20230251728A1

公开(公告)日：2023-08-10

申请号：US17930779

申请日：2022-09-09

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Soon Gyu LEE

IPC: G06F3/038 ,  G06F3/0354 ,  G06F3/042

CPC classification number: G06F3/038 ,  G06F3/03545 ,  G06F3/0421

Abstract: A display device includes a display unit including a plurality of emission areas, a plurality of touch electrodes that sense a touch, a plurality of code patterns formed in a preset code shape on partial areas of front surfaces of the plurality of touch electrodes, a plurality of tilt sensing patterns including a light absorbent disposed in an inner area or a peripheral area of each of the plurality of code patterns, and a main processor. The main processor receives detected image data corresponding to the plurality of tilt sensing patterns from a position input device, and determines arrangement direction information and tilt information of the position input device by comparing the detected image data with each other.

公开(公告)号：US20230094957A1

公开(公告)日：2023-03-30

申请号：US17659958

申请日：2022-04-20

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Soon Gyu LEE ,  Hyun Wook CHO

IPC: G06F3/044 ,  G06F3/041

Abstract: A display device including a non-sensing area and a sensing area with a first sensing area and a second sensing area spaced apart from each other in a first direction, includes a light emitting element emitting light, and a sensor unit including a plurality of first sensor electrodes disposed in the first sensing area and extending in the first direction, a plurality of second sensor electrodes disposed in the second sensing area and extending in the first direction, a plurality of third sensor electrodes disposed in the first sensing area and extending in a second direction different from the first direction, a plurality of fourth sensor electrodes disposed in the second sensing area and extending in the second direction, and a connection pattern disposed in the non-sensing area. The connection pattern electrically connects the plurality of third sensor electrodes to the plurality of fourth sensor electrodes

公开(公告)号：US20230094019A1

公开(公告)日：2023-03-30

申请号：US17833919

申请日：2022-06-07

Applicant: Samsung Display Co., LTD.

Inventor： Soon Gyu LEE

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

Abstract: A display device includes a display panel. The display panel includes pixels. A sensor layer overlaps the display panel and includes sensors. A sensor driver is configured to transmit a driving signal to the sensors and receive sensing signals from the sensors. The sensor driver is configured to transmit a first driving signal to the sensors to detect a first sensing area where a touch occurs in a first mode, and to transmit a second driving signal to at least a portion of the sensors corresponding to a second sensing area different from the first sensing area in a second mode.

公开(公告)号：US20220198174A1

公开(公告)日：2022-06-23

申请号：US17450844

申请日：2021-10-14

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Soon Gyu LEE

IPC: G06K9/00 ,  A61B5/00 ,  G09G3/3233 ,  G09G3/3266

Abstract: A display device includes a touch sensor, a fingerprint sensor, and a sensor driver. The touch sensor generates a touch sensing signal in response to touch of an object on a display panel. The fingerprint sensor detects the object in a first mode to generate a first sensing signal and detects the object in a second mode to generate a second sensing signal. The sensor driver calculates a touch position and a moisture level of the object based on the touch sensing signal, generates fingerprint information based on the first sensing signal, and corrects the moisture level based on the second sensing signal.

公开(公告)号：US20170330500A1

公开(公告)日：2017-11-16

申请号：US15454145

申请日：2017-03-09

Applicant: Samsung Display Co., Ltd.

Inventor： Ki Tae YOON ,  Jae Hyoung PARK ,  Young Soo SOHN ,  Soon Gyu LEE

IPC: G09G3/20

CPC classification number: G09G3/2007 ,  G02F1/133512 ,  G02F2001/133388 ,  G02F2201/56 ,  G09G3/20 ,  G09G3/2003 ,  G09G2300/0452 ,  G09G2310/0232 ,  G09G2320/0233 ,  G09G2320/0242

Abstract: The present disclosure relates to a display device including: a substrate having a rounded corner; a plurality of pixels disposed on the substrate; and a light blocking member disposed on a corner of the substrate and overlapping at least part of a first pixel of the plurality of pixels, the first pixel disposed at the rounded corner, wherein the first pixel is configured to generate a lower luminance, the lower luminance referring to a luminance lower than a normal luminance.