公开(公告)号：US20220271201A1

公开(公告)日：2022-08-25

申请号：US17592486

申请日：2022-02-03

Applicant: Samsung Display Co., LTD.

Inventor： Kwang Taek HONG ,  Ki Nyeng KANG ,  Jong Hyuk KANG ,  Jin Taek KIM ,  Tae Woo KIM ,  Do Yeong PARK ,  Hee Keun LEE ,  Hyun Deok IM ,  Su Min CHOI

IPC: H01L33/38 ,  H01L27/15 ,  H01L33/62

Abstract: A display device includes subpixels arranged in a first direction and a second direction, where each of the subpixels includes an emission area and a sub area arranged in the first direction therein, electrodes extending in the first direction across the emission area and the sub area, where the electrodes includes a first electrode, a second electrode spaced apart from the first electrode in the second direction, a third electrode disposed between the first electrode and the second electrode, and a fourth electrode spaced apart from the third electrode in the second direction with the first electrode interposed therebetween, first light emitting elements disposed on the first electrode and the fourth electrode, and second light emitting elements disposed on the second electrode and the third electrode. A length of the third electrode in the first direction is smaller than a length of the first electrode in the first direction.

公开(公告)号：US20220077254A1

公开(公告)日：2022-03-10

申请号：US17411612

申请日：2021-08-25

Applicant: Samsung Display Co., LTD.

Inventor： Hyun Wook LEE ,  Ki Nyeng KANG ,  Basrur VEIDHES ,  Sung Won JO ,  Jung Eun HONG

IPC: H01L27/32

Abstract: A display device includes an emission area and a sub-region spaced apart from the emission area in a first direction, electrodes extending in the first direction, disposed across the emission area and the sub-region, and spaced apart from each other in a second direction, a first bank surrounding the emission area and the sub-region, and light emitting elements disposed on the electrodes spaced apart in the second direction in the emission area. The first bank includes trench portions in which a top surface of the first bank is partially depressed. The trench portions are disposed between the emission area and the sub-region.

公开(公告)号：US20240145643A1

公开(公告)日：2024-05-02

申请号：US18494692

申请日：2023-10-25

Applicant: Samsung Display Co., Ltd.

Inventor： Jin Taek KIM ,  Ki Nyeng KANG ,  Veidhes BASRUR ,  Ock Soo SON ,  Yong Tae CHO

IPC: H01L33/50 ,  H01L25/16 ,  H01L27/12

CPC classification number: H01L33/507 ,  H01L25/167 ,  H01L27/1248 ,  H01L27/1259 ,  H01L33/502 ,  H01L2933/0041

Abstract: A display device includes a substrate including a display area and a first surface and a second surface opposite each other; and pixels in the display area and including an emission area and a non-emission area, respectively. Each of the pixels may include: a pixel circuit layer including one or more transistors on the first surface of the substrate in the non-emission area, and a first insulating layer, a second insulating layer, a third insulating layer and a fourth insulating layers that are sequentially stacked on the first surface of the substrate and respectively include an opening exposing the first surface of the substrate in the emission area; an optical layer on the pixel circuit layer; and a light emitting element layer on the optical layer. The optical layer may fill the opening of each of the first to fourth insulating layers in at least the emission area.

公开(公告)号：US20230317735A1

公开(公告)日：2023-10-05

申请号：US18095693

申请日：2023-01-11

Applicant: Samsung Display Co., LTD.

Inventor： Jeong Kook WANG ,  Ki Nyeng KANG ,  Veidhes BASRUR ,  Ock Soo SON

IPC: H01L27/12 ,  H01L25/16

CPC classification number: H01L27/124 ,  H01L25/167

Abstract: A display device comprises a first substrate portion including a display area and a non-display area positioned near the display area, and including a pad area, and a second substrate portion facing the first substrate portion. The first substrate portion further includes an overlap area overlapping the second substrate portion in a plan view, and a protrusion area that protrudes more than a side of the second substrate portion, a first sub-substrate portion, a first conductive layer including an alignment pad disposed in the pad area on the protrusion area of the first sub-substrate portion, and a second conductive layer including a first alignment signal line electrically connected to the alignment pad on the first conductive layer, the protrusion area includes an open portion, and the first alignment signal line in a plan view is physically separated based on the open portion.

公开(公告)号：US20230267862A1

公开(公告)日：2023-08-24

申请号：US18306206

申请日：2023-04-24

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Ki Nyeng KANG ,  Min Joo KIM ,  Tae Hoon YANG ,  Sang Hoon LEE ,  Seon Beom JI

IPC: G09G3/00 ,  G09G3/32

CPC classification number: G09G3/006 ,  G09G3/32 ,  G09G2310/0278

Abstract: A display device inspection method includes: checking connection failures of light emitting elements included in a pixel and connected in series based on a first control signal, a second control signal, and a voltage of an initialization power source, wherein the pixel comprises: a pixel circuit controlling a current flowing from a first power source to a second node in response to a voltage of a first node; a first light emitting element connected to the second node; a first transistor controlling the voltage of the initialization power source supplied to the second node; a second light emitting element electrically connected between the first light emitting element and a second power source; and a second transistor having a first electrode connected to a third node between the first light emitting element and the second light emitting element, and a gate electrode connected to a first inspection control line.

公开(公告)号：US20230253413A1

公开(公告)日：2023-08-10

申请号：US18095662

申请日：2023-01-11

Applicant: Samsung Display Co., LTD.

Inventor： Veidhes BASRUR ,  Ki Nyeng KANG ,  In Pyo KIM ,  Ock Soo SON ,  Jong Hwan CHA

IPC: H01L27/12 ,  H01L25/16

CPC classification number: H01L27/124 ,  H01L25/167 ,  H01L27/1296 ,  H01L27/1248

Abstract: Provided herein is a display device and a method of fabricating the display device. The display device includes a substrate including a display area and a non-display area, a via layer disposed in the display area, electrodes disposed on the via layer and spaced apart from each other, light emitting elements disposed between the electrodes, dummy pattern layers disposed in the non-display area, and dummy electrodes disposed on the dummy pattern layers. The via layer and the dummy pattern layers may be disposed on a same layer. The electrodes and the dummy electrodes may be disposed on a same layer.

公开(公告)号：US20230187472A1

公开(公告)日：2023-06-15

申请号：US18076241

申请日：2022-12-06

Applicant: Samsung Display Co., LTD.

Inventor： Jae Hee KIM ,  Ki Nyeng KANG ,  In Pyo KIM ,  Jeong Kook WANG ,  Hyo Jeong LEE ,  Jong Hwan CHA

IPC: H01L27/15 ,  H01L33/24 ,  H01L33/38 ,  H01L33/44 ,  H01L33/50

CPC classification number: H01L27/156 ,  H01L33/24 ,  H01L33/38 ,  H01L33/44 ,  H01L33/50 ,  H01L2933/0016 ,  H01L2933/0025

Abstract: A display device may include a first electrode and a second electrode spaced from each other on a substrate. A light emitting element may be on the first electrode and the second electrode. A first insulating pattern may be on the light emitting element. A first contact electrode may be on a first side of the first insulating pattern and contacting a first end of the light emitting element. A second insulating pattern may be on the first insulating pattern and partially covering the first contact electrode. A third insulating layer may be on the second insulating pattern. A second contact electrode may be on a second side of the first insulating pattern, and contact a second end of the light emitting element that is exposed from the first insulating pattern, the second insulating pattern, and the third insulating layer.

公开(公告)号：US20210407970A1

公开(公告)日：2021-12-30

申请号：US17210985

申请日：2021-03-24

Applicant: Samsung Display Co., LTD.

Inventor： Hyun Wook LEE ,  Ki Nyeng KANG ,  Jin Taek KIM ,  Tae Woo KIM ,  Hee Keun LEE ,  Kyung Tae CHAE

IPC: H01L25/075 ,  H01L27/12 ,  H01L33/62

Abstract: A pixel may include a pixel circuit layer including at least one transistor and a first electrode disposed on a substrate, and a first insulating layer disposed on the at least one transistor and the first electrode, and a display element layer disposed on the pixel circuit layer, the display element layer including a second electrode electrically connected to the at least one transistor, and a plurality of light emitting elements electrically connected to each of the first and second electrodes. The first electrode and the second electrode may be disposed on different layers and may be spaced apart from each other. The plurality of light emitting elements may overlap the first and second electrodes in a plan view and a cross-sectional view.

公开(公告)号：US20210376210A1

公开(公告)日：2021-12-02

申请号：US17222434

申请日：2021-04-05

Applicant: Samsung Display Co., LTD.

Inventor： Hyun Wook LEE ,  Ki Nyeng KANG ,  Ki Bum KIM ,  Jin Taek KIM ,  Kyung Tae CHAE

IPC: H01L33/62 ,  H01L25/16 ,  H01L33/54

Abstract: A pixel includes a first insulating film disposed on a substrate, a light emitting element disposed on the first insulating film, a second insulating film disposed on the light emitting element to cover at least a portion of the light emitting element, a first contact electrode and a second contact electrode, each of the first and second contact electrodes including at least a portion disposed on the first insulating film and connected to the light emitting element, and an encapsulation layer including a photosensitive material.

公开(公告)号：US20210287579A1

公开(公告)日：2021-09-16

申请号：US17116206

申请日：2020-12-09

Applicant: Samsung Display Co., Ltd.

Inventor： Ki Nyeng KANG ,  Min Joo KIM ,  Tae Hoon YANG ,  Sang Hoon LEE ,  Seon Beom JI

IPC: G09G3/00 ,  G09G3/32

Abstract: A display device inspection method includes: checking connection failures of light emitting elements included in a pixel and connected in series based on a first control signal, a second control signal, and a voltage of an initialization power source, wherein the pixel comprises: a pixel circuit controlling a current flowing from a first power source to a second node in response to a voltage of a first node; a first light emitting element connected to the second node; a first transistor controlling the voltage of the initialization power source supplied to the second node; a second light emitting element electrically connected between the first light emitting element and a second power source; and a second transistor having a first electrode connected to a third node between the first light emitting element and the second light emitting element, and a gate electrode connected to a first inspection control line.