公开(公告)号：US11916178B2

公开(公告)日：2024-02-27

申请号：US17297326

申请日：2019-08-23

Applicant: Samsung Display Co., LTD.

Inventor： Jin Oh Kwag ,  Dae Hyun Kim ,  Keun Kyu Song ,  Sung Chan Jo ,  Hyun Min Cho

IPC: H01L33/58 ,  H01L27/15 ,  H01L33/38 ,  H01L33/50

CPC classification number: H01L33/58 ,  H01L27/156 ,  H01L33/382 ,  H01L33/50

Abstract: A display device includes a first electrode and a second electrode that are spaced apart from and facing each other; a light-blocking layer disposed above the first electrode and the second electrode; and at least one light-emitting element disposed between the first electrode and the second electrode. The light-blocking layer includes a light-blocking portion absorbing light and an opening pattern. The light-blocking portion includes an area partially overlapping the first electrode and the second electrode. The at least one opening pattern exposes portions of the first and second electrodes facing each other and at least a portion of an area between the first and second electrodes facing each other. The at least one light-emitting element overlaps the at least one opening pattern.

公开(公告)号：US11568036B2

公开(公告)日：2023-01-31

申请号：US17520699

申请日：2021-11-07

Applicant: Samsung Display Co., Ltd.

Inventor： Won Sang Park ,  Jin Oh Kwag ,  Il Nam Kim ,  Ji Hun Ryu ,  Seung Hyun Moon ,  Bong Hyun You ,  Jong Hyun Lee ,  Hee Chul Hwang

IPC: G06F21/32 ,  G06F3/042 ,  G06V40/13 ,  G06V40/12

Abstract: A display device including a fingerprint sensor including a first layer having at least one photo sensor to generate a fingerprint image corresponding to reflected light from a fingerprint contact surface, light emitting elements to transmit light reflected by the fingerprint, and a second layer including pin holes to allow reflected light to be incident upon the at least one photo sensor; and a fingerprint detector to receive the fingerprint image from the fingerprint sensor, to extract a first image corresponding to a first region of the fingerprint and a second image corresponding to a second region of the fingerprint, to compare the first and second images to determine similarity, and to perform fingerprint authentication, based on similarity determination, where the fingerprint first region is in contact with the fingerprint contact surface and the fingerprint second region is not in contact with the fingerprint contact surface.

公开(公告)号：US11424288B2

公开(公告)日：2022-08-23

申请号：US16784935

申请日：2020-02-07

Applicant: Samsung Display Co., Ltd.

Inventor： Chong Chul Chai ,  Kyung Bae Kim ,  Mee Hye Jung ,  Jin Oh Kwag ,  Min Jae Jeong

IPC: G09G3/32 ,  H01L33/62 ,  H01L27/15 ,  H01L27/12 ,  H01L49/02 ,  H01L23/552 ,  H01L33/06 ,  H01L33/00 ,  H01L33/32

Abstract: A display device includes: a substrate including a pixel; a scan line for supplying a scan signal to the pixel; a data line for supplying a data signal to the pixel; a first power line for supplying a first driving power source to the pixel; a second power line for supplying a second driving power source to the pixel; and a third power line for supplying a ground voltage to the pixel. The pixel includes: first and second electrodes spaced apart from each other on the substrate; a plurality of light emitting elements, each of the light emitting elements having first and second end portions in a length direction thereof and being arranged between the first electrode and the second electrode; and a first switch electrically connected between the third power line and the first electrode. The first switch is configured to be turned on by a control signal.

公开(公告)号：US11423691B2

公开(公告)日：2022-08-23

申请号：US16927622

申请日：2020-07-13

Applicant: Samsung Display Co., Ltd.

Inventor： Seung Hyun Moon ,  Yun Ho Kim ,  Jin Oh Kwag ,  Won Sang Park ,  Bong Hyun You ,  Keum Dong Jung ,  Chui Kim ,  Jun Hee Moon ,  Deok Hwa Woo ,  Hee Chui Hwang

IPC: G06V40/13 ,  G06V40/12

Abstract: A display device includes a display panel including a plurality of pixels configured to display an image, a photo sensor on one surface of the display panel to sense light, and a fingerprint detector configured to control a fake determination image pattern of a fingerprint sensing area of the display panel configured to sense a fingerprint, and to perform fingerprint authentication and fake fingerprint determination, based on a sensing signal supplied from the photo sensor.

公开(公告)号：US20210334496A1

公开(公告)日：2021-10-28

申请号：US17370206

申请日：2021-07-08

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Keum Dong JUNG ,  II Nam Kim ,  Kyung Tea Park ,  Jin Oh Kwag ,  Won Sang Park ,  Sung Chan Jo

IPC: G06K9/00

Abstract: A fingerprint recognition device including: a sensing panel including a plurality of sensing blocks, wherein each of the sensing blocks includes a plurality of sensors; a scan driving unit configured to provide a scan signal to the sensors; and a timing controller configured to provide a second initiation signal to the scan driving unit, wherein each of the sensors includes a reference capacitor and a sensing capacitor, the scan driving unit includes scan drivers that correspond to rows of the sensing blocks, in a fingerprint recognition mode, the timing controller provides the second initiation signal to a scan driver corresponding to a sensing block where a touch input is generated, and in a touch mode, the timing controller sequentially provides the second initiation signal to the scan drivers.

公开(公告)号：US20180285619A1

公开(公告)日：2018-10-04

申请号：US15831317

申请日：2017-12-04

Applicant: Samsung Display Co., Ltd.

Inventor： Jin Woo Kim ,  Jin Oh Kwag ,  Hai Jung In ,  Won Jun Choe

IPC: G06K9/00 ,  G09G3/3233 ,  G09G3/3266 ,  G09G3/3275

Abstract: A display device including a display panel including a display area including a fingerprint sensing area and a plurality of pixels provided in the fingerprint sensing area; a sensor layer provided on one surface of the display panel overlapping the fingerprint sensing area, the sensor layer including a plurality of photo sensors; a panel driving circuit configured to output a data signal corresponding to image data to the display panel, corresponding to a first mode, and to output a driving signal to the display panel to allow the pixels to emit lights in a form corresponding to a predetermined light pattern, corresponding to a second mode; and a fingerprint detecting circuit configured to receive sensing signals from the photo sensors, corresponding to the second mode, the fingerprint detecting circuit detecting a fingerprint of a user, based on a sensing signal corresponding to the light pattern among the received sensing signals.

公开(公告)号：US12100689B2

公开(公告)日：2024-09-24

申请号：US17276776

申请日：2019-03-21

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jong Hyuk Kang ,  Hae Yun Choi ,  Han Su Kim ,  Eun A Yang ,  Hyun Min Cho ,  Keun Kyu Song ,  Jin Oh Kwag

IPC: H01L25/075 ,  B05C13/02 ,  H01L21/67 ,  H01L33/00 ,  H05K13/02 ,  H05K13/04

CPC classification number: H01L25/0753 ,  B05C13/02 ,  H01L21/67259 ,  H05K13/027 ,  H05K13/04

Abstract: An apparatus for manufacturing a light emitting display device includes a substrate transfer stage including a plurality of support plates arranged at an interval in a first direction, each of the plurality of support plates extending in a second direction; and at least one electric-field application module disposed on at least one side of the substrate transfer stage. The at least one electric-field application module includes a probe head including at least one probe pin; and a driver connected to the probe head to move the probe head at least up and down.

公开(公告)号：US12086367B2

公开(公告)日：2024-09-10

申请号：US18303770

申请日：2023-04-20

Applicant: Samsung Display Co., LTD.

Inventor： Seung Lyong Bok ,  Ki Seo Kim ,  Jae Kyoung Kim ,  Young Seok Seo ,  Sun Mi Yu ,  Jin Oh Kwag

IPC: G06F3/044 ,  G06F3/041 ,  G09G3/3225 ,  H01Q1/38 ,  H10K59/131 ,  H10K59/40

CPC classification number: G06F3/0443 ,  G06F3/0414 ,  G09G3/3225 ,  H01Q1/38 ,  H10K59/131 ,  H10K59/40 ,  G06F2203/04102

Abstract: A display device includes a display panel including a display layer having light-emitting elements on the substrate, and a sensor electrode layer on the display layer. The sensor electrode layer includes sensor electrodes in a sensor area, sensor lines electrically connected to the sensor electrodes and a first conductive pattern spaced apart from the sensor lines and sensor electrodes. The sensor lines and the first conductive pattern are in a sensor peripheral area adjacent to the sensor area. The first conductive pattern is an antenna.

公开(公告)号：US12068279B2

公开(公告)日：2024-08-20

申请号：US17630595

申请日：2020-06-03

Applicant: Samsung Display Co., LTD.

Inventor： Won Ho Lee ,  Hyun Deok Im ,  Jong Hyuk Kang ,  Jin Oh Kwag ,  Keun Kyu Song ,  Sung Chan Jo ,  Hyun Min Cho

IPC: H01L21/68 ,  B41M3/00 ,  H01L23/00 ,  H01L25/16

CPC classification number: H01L24/95 ,  B41M3/006 ,  H01L21/68 ,  H01L25/167 ,  H01L24/24 ,  H01L24/25 ,  H01L2224/24051 ,  H01L2224/24101 ,  H01L2224/24145 ,  H01L2224/25175 ,  H01L2224/95102 ,  H01L2224/95133

Abstract: A dipole alignment device includes an electric field forming part including a stage, and a probe part which form an electric field on the stage; an inkjet printing apparatus including at least one inkjet head which sprays ink including dipoles and a solvent with the dipoles dispersed therein onto the stage; a transportation part comprising a first moving part which moves the electric field forming part in at least one direction; and a light irradiation apparatus including a light irradiation part which applies light to the ink sprayed onto the stage.

公开(公告)号：US12027508B2

公开(公告)日：2024-07-02

申请号：US17278114

申请日：2019-03-21

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Je Won Yoo ,  Dae Hyun Kim ,  Bek Hyun Lim ,  Myeong Hee Kim ,  Chang Il Tae ,  Hyun Min Cho ,  Keun Kyu Song ,  Jin Oh Kwag

IPC: H01L33/44 ,  H01L23/00 ,  H01L25/16 ,  H01L33/54 ,  H01L33/24

CPC classification number: H01L25/167 ,  H01L24/95 ,  H01L33/44 ,  H01L33/54 ,  H01L33/24 ,  H01L2224/95102 ,  H01L2224/95134 ,  H01L2933/005

Abstract: A display device may include: a substrate including a display area and a non-display area; and pixels disposed on the display area, and each including sub-pixels, each sub-pixel including a pixel circuit layer, and a display element layer including a light emitting element. The display element layer includes first and second electrodes spaced apart from each other; a first insulating layer disposed between the pixel circuit layer and the light emitting element; and a second insulating layer disposed on the light emitting element and filling spaces between the first insulating layer and ends of the light emitting element. The light emitting element includes a first conductive semiconductor layer, an active layer enclosing at least one side of the first conductive semiconductor layer, a second conductive semiconductor layer enclosing the active layer, an electrode layer enclosing the second conductive semiconductor layer, and an insulating film covering the electrode layer.