公开(公告)号：US20230165106A1

公开(公告)日：2023-05-25

申请号：US18094924

申请日：2023-01-09

Applicant: Samsung Display Co., Ltd.

Inventor： Ji Hun RYU ,  Eun Jin Sung ,  Yun Ho Kim ,  II Nam Kim ,  Won Sang Park

IPC: H10K59/40 ,  G09G3/3275 ,  G09G3/3266 ,  G06V40/13 ,  H10K50/842 ,  H10K59/131

CPC classification number: H10K59/40 ,  G09G3/3275 ,  G09G3/3266 ,  G06V40/1306 ,  H10K50/8426 ,  H10K59/131 ,  G09G2300/0439 ,  H10K2102/103

Abstract: A display device including a light sensing array layer (LSAL), a substrate, a selective light transmission layer (SLTL), a pixel circuit layer (PCL), a display element layer (DEL), and pixels. The LSAL includes an optical sensor to sense incident light. The substrate is on the LSAL and includes a display area (DA) including pixel areas (PAs), and a non-DA adjacent to the DA. The SLTL is disposed on the substrate and includes through-holes to form a path of light onto the optical sensor, and a light-blocking conductive pattern (LBCP) between the through-holes. The PCL is disposed on the SLTL and includes a conductive layer and an insulation layer. The DEL is disposed on the PCL and emits light. Each pixel includes a pixel circuit disposed on the PCL, and a light emitting element on the DEL in a corresponding pixel area. The LBCP is electrically connected to the conductive layer

公开(公告)号：US20190138123A1

公开(公告)日：2019-05-09

申请号：US16004447

申请日：2018-06-11

Applicant: Samsung Display Co., Ltd.

Inventor： Keum Dong JUNG ,  Ki Seo Kim ,  II Nam Kim ,  Kyung Tea Park ,  Yun Ho Kim ,  Jae Kyoung Kim ,  Won Sang Park ,  Jong In Baek

IPC: G06F3/044 ,  G06K9/00

Abstract: A fingerprint sensor including first, second, and third lines, and a unit sensor coupled to the first, the second, and the third lines. The unit sensor includes a pixel electrode coupled between the first line and the second line, a first capacitance element coupled between the first line and the pixel electrode, a second capacitance element coupled between the second line and the pixel electrode, a switching element coupled between the pixel electrode and one of the first line, the second line, a first line of an adjacent unit sensor, and a second line of the adjacent unit sensor, and including a control electrode coupled to the third line, and a third capacitance element coupled between the third line and the pixel electrode, in which at least one of the first and the second capacitance elements includes a variable capacitance element.

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：US20220102444A1

公开(公告)日：2022-03-31

申请号：US17397884

申请日：2021-08-09

Applicant: Samsung Display Co., Ltd.

Inventor： Ji Hun Ryu ,  Yun Ho Kim ,  II Nam Kim ,  Eun Jin Sung

IPC: H01L27/32 ,  G06K9/00

Abstract: A display device including a plurality of pixels arranged in a matrix, a substrate, a first anode disposed on the substrate, and a plurality of opaque conductive layers disposed between the substrate and the first anode, in which the pixels include an opening pixel including a first anode arrangement region, a pinhole region located around the first anode arrangement region and surrounded by the first anode, and a first anode non-arrangement region including an exposed region located outside the first anode, and in a plan view, the opaque conductive layers completely cover the exposed region and at least partially expose the pinhole region.

公开(公告)号：US20210055826A1

公开(公告)日：2021-02-25

申请号：US16997871

申请日：2020-08-19

Applicant: Samsung Display Co., LTD.

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

IPC: G06F3/042 ,  G06K9/00 ,  G06F21/32

Abstract: A display device includes 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 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.