公开(公告)号：US20220336561A1

公开(公告)日：2022-10-20

申请号：US17671826

申请日：2022-02-15

Applicant: Samsung Display Co., Ltd.

Inventor： GOEUN CHA ,  ILNAM KIM ,  KYUNGTEA PARK ,  JONGHYUN LEE ,  KEUMDONG JUNG ,  KANGBIN JO

IPC: H01L27/32 ,  G09G3/3266 ,  G06V40/13

Abstract: A display device may include a pixel and a sensor. The pixel may include an emission element and a pixel driving circuit. The pixel driving circuit may receive a first scan signal and a second scan signal. The sensor may include a light sensing element and a sensor driving circuit. The sensor driving circuit may include a reset transistor, an amplifying transistor, and an output transistor. The reset transistor may receive a reset voltage and the first scan signal and be connected to a first sensing node. The amplifying transistor may receive a first driving voltage and be connected between the first sensing node and a second sensing node. The output transistor may receive the second scan signals and be connected between the second sensing node and a readout line.

公开(公告)号：US20240203351A1

公开(公告)日：2024-06-20

申请号：US18519078

申请日：2023-11-27

Applicant: Samsung Display Co., Ltd.

Inventor： ILNAM KIM ,  HYUNDAE LEE ,  KANGBIN JO ,  GOEUN CHA ,  HEECHUL HWANG

IPC: G09G3/3233 ,  G06F3/041 ,  G06V40/13

CPC classification number: G09G3/3233 ,  G06F3/0412 ,  G06V40/1318 ,  G09G2300/0426 ,  G09G2300/0852 ,  G09G2310/061

Abstract: A display device is disclosed that includes a display panel, a scan driver, a panel driving circuit, and a readout circuit. The display panel includes a pixel that includes a light emitting element and a sensor that includes a light sensing element. The scan driver outputs a scan signal for driving the pixel and the sensor in response to a scan control signal. The panel driving circuit outputs the scan control signal. The readout circuit generates switching signals based on the scan control signal and outputs a fingerprint sensing signal corresponding to a sensing signal received from the sensor in response to the switching signals.

公开(公告)号：US20230069681A1

公开(公告)日：2023-03-02

申请号：US17731886

申请日：2022-04-28

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： KANGBIN JO ,  ILNAM KIM ,  SEUNGHYUN MOON ,  DONGWOOK YANG ,  HYUNDAE LEE ,  GOEUN CHA

IPC: G09G3/3266 ,  G09G3/3233 ,  G06F3/041 ,  G06V40/13

Abstract: A display device includes a display panel and a scan driving circuit. The display panel includes a plurality of pixels and a plurality of sensors. The scan driving circuit drives a plurality of scan lines. Pixels in a j-th row among the plurality of pixels are connected to a j-th scan line among the plurality of scan lines, in which j is a positive integer. Sensors, which correspond to the pixels in the j-th row, from among the plurality of sensors are connected to an a-th scan line among the plurality of scan lines, in which a is a positive integer different from j.

公开(公告)号：US20220019760A1

公开(公告)日：2022-01-20

申请号：US17199324

申请日：2021-03-11

Applicant: Samsung Display Co., Ltd.

Inventor： GOEUN CHA ,  KEUMDONG JUNG ,  Yuna KIM ,  KYUNGTEA PARK ,  SOOJUNG LEE ,  KANGBIN JO

IPC: G06K9/00 ,  G06F3/147 ,  H01L27/32

Abstract: A display device includes: a display panel to display an image by generating light, a sensor disposed under the display panel to convert a light energy into an electrical energy, a voltage generator connected to the sensor, and a capacitive element connected to the sensor. The electrical energy generated by the sensor is charged in the capacitive element. The sensor senses an object using the light reflected by the object.