公开(公告)号：US12155021B2

公开(公告)日：2024-11-26

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 ,  G09G3/32 ,  H01L25/075 ,  H01L25/16 ,  H01L27/12 ,  H01L27/15 ,  H01L33/18 ,  H01L33/36 ,  H01L33/38 ,  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：US12074255B2

公开(公告)日：2024-08-27

申请号：US17202943

申请日：2021-03-16

Applicant: Samsung Display Co., Ltd.

Inventor： Hyun Wook Lee ,  Myeong Hun Song ,  Jeong Hyun Lee ,  Jong Chan Lee ,  Tae Hee Lee

IPC: H01L33/38 ,  H01L27/15 ,  H01L33/42 ,  H01L33/46 ,  H01L33/50

CPC classification number: H01L33/38 ,  H01L27/156 ,  H01L33/42 ,  H01L33/46 ,  H01L33/502

Abstract: The display device according to an exemplary embodiment of the present disclosure includes a substrate and a display element unit. The display element unit includes a first electrode on the substrate, a second electrode on the substrate and spaced apart from the first electrode in a first direction, and a plurality of light emitting elements between the first electrode and the second electrode in a plan view. Each of the first and second electrodes includes an opening.

公开(公告)号：US11791447B2

公开(公告)日：2023-10-17

申请号：US17196358

申请日：2021-03-09

Applicant: Samsung Display Co., LTD.

Inventor： Hyun Wook Lee ,  Tae Hee Lee ,  Jong Chan Lee ,  Woong Hee Jeong

IPC: H01L33/60 ,  H01L23/00 ,  H01L33/62 ,  H01L25/075

CPC classification number: H01L33/62 ,  H01L24/24 ,  H01L24/32 ,  H01L24/73 ,  H01L25/0753 ,  H01L33/60 ,  H01L2224/24011 ,  H01L2224/24051 ,  H01L2224/24226 ,  H01L2224/32057 ,  H01L2224/32225 ,  H01L2224/73217

Abstract: A display device includes a first electrode disposed on a substrate, a second electrode disposed on the substrate and spaced apart from the first electrode, at least one light-emitting element extending in a direction, disposed between the first electrode and the second electrode, and electrically connected to the first electrode and the second electrode, and an insulating pattern layer disposed on the first electrode and the second electrode, the insulating pattern layer including a fixer disposed on at least part of the at least one light-emitting element, and a barrier surrounding the at least one light-emitting element.

公开(公告)号：US11569273B2

公开(公告)日：2023-01-31

申请号：US17447491

申请日：2021-09-13

Applicant: Samsung Display Co., Ltd.

Inventor： Hyun Wook Lee ,  Tae Hee Lee ,  Kwang Taek Hong ,  Jung Eun Hong

IPC: H01L27/12 ,  H01L25/16

Abstract: A pixel according to an embodiment of the present disclosure includes a circuit element on a base layer, a protective layer on the circuit element, a first electrode and a second electrode opposite each other on the protective layer, a first insulating layer on the first electrode and the second electrode, a light-emitting element on the first insulating layer at an area between the first electrode and the second electrode, a first contact electrode on a first end of the light-emitting element to connect the first end of the light-emitting element to the first electrode, a second contact electrode on a second end of the light-emitting element to connect the second end of the light-emitting element to the second electrode, and a cavity in the protective layer and the first insulating layer below the light-emitting element corresponding to the area between the first electrode and the second electrode.

公开(公告)号：US20220102422A1

公开(公告)日：2022-03-31

申请号：US17449114

申请日：2021-09-28

Applicant: Samsung Display Co., Ltd.

Inventor： Hyun Wook Lee ,  Kyung Tae Chae ,  Ki Bum Kim ,  Jin Taek Kim

IPC: H01L27/15 ,  H01L33/00 ,  H01L33/24 ,  H01L33/44 ,  H01L33/38 ,  H01L33/42 ,  H01L33/50 ,  H01L33/58 ,  H01L33/60

Abstract: A display device according to one embodiment of the present disclosure includes: a base layer including a display area; a circuit layer including a conductive pattern in a pixel area of the display area; a first insulating film on the circuit layer, the first insulating film being opened in a contact portion on the conductive pattern; a reflective film on the first insulating film and including a first opening that corresponds to the contact portion; a second insulating film on the reflective film and including a second opening overlapping the first opening; and a display layer on the second insulating film, connected to the conductive pattern through the contact portion, and including a first electrode, a second electrode, and a light-emitting element overlapping the reflective film, wherein, in the contact portion, the reflective film has a wider opening than the second insulating film.

公开(公告)号：US12094855B2

公开(公告)日：2024-09-17

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: H01L29/20 ,  H01L25/075 ,  H01L27/12 ,  H01L33/00 ,  H01L33/62

CPC classification number: H01L25/0753 ,  H01L27/1214 ,  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：US20230411371A1

公开(公告)日：2023-12-21

申请号：US18110101

申请日：2023-02-15

Applicant: Samsung Display Co., LTD.

Inventor： Jong Chan Lee ,  Jin Taek Kim ,  Jeong Su Park ,  Sung Jin Lee ,  Hyun Wook Lee ,  Woong Hee Jeong

IPC: H01L25/16 ,  H01L27/12 ,  H01L33/62

CPC classification number: H01L25/167 ,  H01L33/62 ,  H01L27/124

Abstract: A display device includes a bank layer disposed on a substrate and defining an emission area, a first to sixth alignment electrodes, each disposed on the substrate extending across the emission area, spaced apart from each other, and sequentially arranged in a direction, a first light emitting element disposed between the first alignment electrode and the second alignment electrode in the emission area and emitting first light, a second light emitting element disposed between the third alignment electrode and the fourth alignment electrode in the emission area and emitting second light, and a third light emitting element disposed between the fifth alignment electrode and the sixth alignment electrode in the emission area and emitting third light. Wavelengths of the first light, the second light, and the third light are different from each other.

公开(公告)号：US20230030101A1

公开(公告)日：2023-02-02

申请号：US17692575

申请日：2022-03-11

Applicant: Samsung Display Co., LTD.

Inventor： Sung Geun Bae ,  Jang Soon Park ,  Hyun Wook Lee ,  Da Sol Jeong ,  Won Hyeong Heo

IPC: H01L27/32 ,  H01L51/52

Abstract: A display device includes a first electrode and a second electrode on a substrate spaced apart from each other, a first insulating layer on the first and second electrodes, wall patterns on the first insulating layer and overlapping the first electrode and the second electrode, a second insulating layer on the first insulating layer and overlapping the wall patterns, light-emitting elements directly on the second insulating layer and between the wall patterns, a bank layer on the first insulating layer and surrounding an area including the light-emitting elements, and a first connecting electrode on the first electrode electrically contacting the light-emitting elements, and a second connecting electrode on the second electrode electrically contacting the light-emitting elements, the first insulating layer includes an organic insulating material, and the second insulating layer includes an inorganic insulating material.

公开(公告)号：US11222560B2

公开(公告)日：2022-01-11

申请号：US16230631

申请日：2018-12-21

Applicant: Samsung Display Co., Ltd.

Inventor： Hyun Wook Lee ,  Jae Ho Choi ,  Seung Rae Kim ,  Jae Min Seong ,  Min cheol Chae

IPC: G02F1/13 ,  G09G3/00 ,  G02F1/1335 ,  G02F1/1333

Abstract: An exemplary embodiment provides a display device including: a display part configured to include a display part color filter; and a peripheral part disposed at the upper side of the display part and including an inspection pattern for checking an alignment of the display part color filter. The inspection pattern may include a plurality of color filters having colors and reference patterns disposed at at least one side of the plurality of color filters. A number of the plurality of color filters of each color corresponds to a number of shots of a division exposure process. Adjacent color filters among the plurality of color filters may be disposed at different heights.

公开(公告)号：US12205959B2

公开(公告)日：2025-01-21

申请号：US17550429

申请日：2021-12-14

Applicant: Samsung Display Co., LTD.

Inventor： Jong Chan Lee ,  Hyun Kim ,  Jeong Su Park ,  Jeong Kook Wang ,  Hyun Wook Lee ,  Yong Tae Cho

IPC: H01L27/12 ,  H01L23/00 ,  H01L25/075 ,  H01L25/16 ,  H01L27/15 ,  H01L33/38 ,  H01L33/60 ,  H01L33/62

Abstract: A display device includes a first electrode and a second electrode spaced apart from each other, each of the first electrode and the second electrode including an electrode base layer, a main electrode layer disposed on the electrode base layer, and an electrode upper layer disposed on a portion of the main electrode layer, a first insulating layer disposed on the first electrode and the second electrode, light-emitting elements disposed on the first electrode and the second electrode on the first insulating layer, a first connecting electrode electrically contacting the light-emitting elements, and a second connecting electrode electrically contacting the light-emitting elements. The first electrode includes a first part, the second electrode includes a second part, and the light-emitting elements are disposed on the first part and the second part.