公开(公告)号：US20210217358A1

公开(公告)日：2021-07-15

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: G09G3/3208 ,  G06K9/00 ,  H01L27/32

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：US20210326572A1

公开(公告)日：2021-10-21

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 ,  H01L27/32

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：US20230090283A1

公开(公告)日：2023-03-23

申请号：US17739356

申请日：2022-05-09

Applicant: Samsung Display Co., Ltd.

Inventor： Jinwoo KIM ,  Soongyu LEE

IPC: G06F3/041 ,  G06F3/044

Abstract: A method for driving a display device includes operating an input sensing part in a direct sensing mode. The input sensing part includes first sensing electrodes connected to transmission lines and second sensing electrodes connected to the sensing lines. The input sensing part operates in a noise sensing mode and proximity sensing mode when a call mode is performed. The proximity sensing mode includes generation of a proximity sensing signal concerning proximity of a user to the display device. Noise sensed in the noise sensing mode is removed from the proximity sensing signal when the proximity sensing signal indicates the user is proximate. At least one of a voltage level of a drive signal, a number of simultaneous transmission lines to which the drive signal is simultaneously applied, or a frequency of the drive signal is differently set in the noise sensing mode as compared to the proximity sensing mode.

公开(公告)号：US20230042134A1

公开(公告)日：2023-02-09

申请号：US17739145

申请日：2022-05-08

Applicant: Samsung Display Co., Ltd.

Inventor： KYOUNGHUN BEEN ,  Jinwoo KIM ,  Byeongkyu JEON

IPC: A61B5/00 ,  G01N27/22

Abstract: A method of measuring skin moisture includes: measuring, in response to a touch on a touch panel, a first capacitance for a touch area in association with driving first and second electrodes of the touch panel in a mutual sensing mode; measuring, in response to the touch, a second capacitance for the touch area in association with driving one electrode of the first and second electrodes in a self-sensing mode; comparing the first capacitance with a first reference capacitance; determining, in response to the first capacitance being greater than the first reference capacitance, a skin moisture level using the first capacitance and the second capacitance; comparing, in response to the first capacitance being less than the first reference capacitance, the second capacitance with a second reference capacitance; and compensating, in response to the second capacitance being greater than the second reference capacitance, the first capacitance using the second capacitance.

公开(公告)号：US20190087628A1

公开(公告)日：2019-03-21

申请号：US16132127

申请日：2018-09-14

Applicant: Samsung Display Co., Ltd.

Inventor： Weonjun CHOE ,  Hai-jung IN ,  Jinwoo KIM ,  Hyoungwook JANG

IPC: G06K9/00

Abstract: Disclosed are a biometric information detecting device and a display apparatus. The biometric information detecting device includes a measurer, a determiner, a controller, and a processor. The measurer measures biometric information of a user as an electrical signal. The determiner is connected to the measurer to receive the electrical signal, processes the electrical signal according to a first reference condition to output a first result signal, and processes the electrical signal according to a second reference condition to output a second result signal. The controller controls the determiner such that the determiner is operated in the first reference condition or the second reference condition, and the processor processes the first and second result signals to obtain the biometric information of the user.

公开(公告)号：US20210365168A1

公开(公告)日：2021-11-25

申请号：US17249721

申请日：2021-03-10

Applicant: Samsung Display Co., Ltd.

Inventor： Byeongkyu JEON ,  Jinwoo KIM

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

Abstract: An electronic device includes: a display panel configured to display an image; an input sensor on the display panel and configured to sense a first input in first and second modes; a sensor controller connected to the input sensor; and an input device configured to transceive a signal with the sensor controller through the input sensor and to provide a second input to the input sensor, wherein the sensor controller is configured to sense the first input through the input sensor during a first input sensing frame and the second input generated by the input device during a second input sensing frame, and wherein the sensor controller is configured to transmit, to the input sensor, an integrated transmission signal comprising a recognition signal for recognizing the input device and a first mode sensing signal for sensing the first input in the first mode during a first operation period of the first input sensing frame.

公开(公告)号：US20160049111A1

公开(公告)日：2016-02-18

申请号：US14583992

申请日：2014-12-29

Applicant: Samsung Display Co., Ltd.

Inventor： Jaehoon LEE ,  Jinwoo KIM ,  Byunghyuk SHIN ,  Byeongdoo KANG ,  Dohyung RYU ,  Jaewoo SONG ,  Haegoo JUNG

IPC: G09G3/20 ,  G09G3/32

CPC classification number: G09G3/3291 ,  G09G3/2022 ,  G09G3/3258 ,  G09G2310/027 ,  G09G2310/0289 ,  G09G2310/0291 ,  G09G2320/0233 ,  G09G2320/064 ,  G09G2330/00 ,  G09G2330/021 ,  G09G2330/028

Abstract: A power supply device includes: a feedback controller configured to detect a feedback voltage based on an output voltage of a power output line connected to a power input line to which a power supply voltage is supplied; a voltage controller configured to detect a level change of the power supply voltage based on the feedback voltage; and a voltage generator configured to adjust the power supply voltage according to the detected level change.

Abstract translation: 电源装置包括：反馈控制器，被配置为基于连接到供应有电源电压的电力输入线的电力输出线的输出电压来检测反馈电压; 电压控制器，被配置为基于所述反馈电压来检测所述电源电压的电平变化; 以及电压发生器，被配置为根据检测到的电平变化来调整电源电压。