公开(公告)号：US20240074248A1

公开(公告)日：2024-02-29

申请号：US18495815

申请日：2023-10-27

Applicant: Japan Display Inc.

Inventor： Shinichi KAWAMURA ,  Nobuo IMAI ,  Hiroshi OGAWA

IPC: H10K59/122 ,  H10K59/80

CPC classification number: H10K59/122 ,  H10K59/8051 ,  H10K59/8052 ,  H10K71/231

Abstract: According to one embodiment, a display device comprises a first lower electrode, a rib including a first pixel aperture, a partition including a lower portion on the rib and an upper portion protruding from a side surface of the lower portion, a first upper electrode, and a first organic layer between the first lower electrode and the first upper electrode. The lower portion includes a bottom layer and a stem layer on the bottom layer. The bottom layer is formed of a material which has a smaller etching rate to a mixed acid containing phosphoric acid, nitric acid, and acetic acid than the stem layer and which is conductive.

公开(公告)号：US20230413645A1

公开(公告)日：2023-12-21

申请号：US18327904

申请日：2023-06-02

Applicant: Japan Display Inc.

Inventor： Nobuo IMAI ,  Yuya YAMAMOTO ,  Hiroshi OGAWA

IPC: H10K59/80 ,  H10K71/20

CPC classification number: H10K59/871 ,  H10K2102/351 ,  H10K71/233

Abstract: According to one embodiment, a display device includes a lower electrode, a rib including a pixel aperture, a partition including a lower portion on the rib and an upper portion protruding from a side surface of the lower portion, an upper electrode facing the lower electrode, an organic layer between the electrodes, and a sealing layer covering a display element and the partition. The rib includes a first rib layer and a second rib layer which covers the first rib layer. The sealing layer and the first rib layer are formed of a first inorganic material. The second rib layer is formed of a second inorganic material different from the first inorganic material.

公开(公告)号：US20230240123A1

公开(公告)日：2023-07-27

申请号：US18158482

申请日：2023-01-24

Applicant: Japan Display Inc.

Inventor： Yuya YAMAMOTO ,  Nobuo IMAI

IPC: H10K71/00 ,  H10K59/35 ,  H10K59/12

CPC classification number: H10K71/00 ,  H10K59/353 ,  H10K59/1201

Abstract: According to one embodiment, a manufacturing method of a display device includes forming a lower electrode, forming an insulating layer overlapping the lower electrode, forming a first aluminum layer above the insulating layer, cooling the first aluminum layer, forming a second aluminum layer on the first aluminum layer, forming a thin film above the second aluminum layer, forming a partition including a lower portion and an upper portion, the second aluminum layer and the thin film, forming an organic layer located on the lower electrode, and forming an upper electrode which is located on the organic layer and is in contact with the lower portion of the partition.

公开(公告)号：US20230240120A1

公开(公告)日：2023-07-27

申请号：US18158478

申请日：2023-01-24

Applicant: Japan Display Inc.

Inventor： Yuya YAMAMOTO ,  Nobuo IMAI

IPC: H10K59/80 ,  H10K71/00

CPC classification number: H10K59/873 ,  H10K71/00 ,  H10K2102/351

Abstract: According to one embodiment, a display device manufacturing method includes forming a lower electrode, forming an insulating layer overlapping the lower electrode, forming a first aluminum layer, forming a middle layer, forming a second aluminum layer, forming a thin film, forming a partition including a lower portion including the first aluminum layer, the middle layer and the second aluminum layer and an upper portion including the thin film and protruding from a side surface of the lower portion by etching the first aluminum layer, the middle layer, the second aluminum layer and the thin film, forming an organic layer on the lower electrode, and forming an upper electrode on the organic layer and is in contact with the lower portion of the partition.

公开(公告)号：US20240224617A1

公开(公告)日：2024-07-04

申请号：US18607569

申请日：2024-03-18

Applicant: Japan Display Inc.

Inventor： Shinichi KAWAMURA ,  Nobuo IMAI ,  Hiroshi OGAWA

IPC: H10K59/122 ,  H10K59/80 ,  H10K71/20 ,  H10K102/00

CPC classification number: H10K59/122 ,  H10K59/8051 ,  H10K59/8052 ,  H10K71/231 ,  H10K2102/351

Abstract: According to one embodiment, a display device comprises a first lower electrode, a rib including a first pixel aperture, a partition including a lower portion on the rib and an upper portion protruding from a side surface of the lower portion, a first upper electrode, and a first organic layer between the first lower electrode and the first upper electrode. The lower portion includes a bottom layer and a stem layer on the bottom layer. The bottom layer is formed of a material which has a smaller etching rate to a mixed acid containing phosphoric acid, nitric acid, and acetic acid than the stem layer and which is conductive.

公开(公告)号：US20240206241A1

公开(公告)日：2024-06-20

申请号：US18522318

申请日：2023-11-29

Applicant: Japan Display Inc.

Inventor： Nobuo IMAI ,  Hiroshi OGAWA ,  Yuya YAMAMOTO

IPC: H10K59/122 ,  H10K59/80 ,  H10K71/60

CPC classification number: H10K59/122 ,  H10K59/80521 ,  H10K59/8722 ,  H10K71/60

Abstract: According to one embodiment, a display device includes a lower electrode, a rib including a pixel aperture, a partition which includes a conductive bottom portion on the rib, a stem portion on the bottom portion, and a top portion on the stem portion, an organic layer which covers the lower electrode through the pixel aperture, and an upper electrode which covers the organic layer and is in contact with the bottom portion. The bottom portion and the top portion protrude from a side surface of the stem portion. A first protrusion length of the bottom portion from the side surface is greater than or equal to 0.2 μm and less than or equal to 0.7 μm.

公开(公告)号：US20240008316A1

公开(公告)日：2024-01-04

申请号：US18343759

申请日：2023-06-29

Applicant: Japan Display Inc.

Inventor： Shinichi KAWAMURA ,  Nobuo IMAI ,  Hiroshi OGAWA

IPC: H10K59/122 ,  H10K59/80

CPC classification number: H10K59/122 ,  H10K59/8051 ,  H10K59/8052 ,  H10K71/231

Abstract: According to one embodiment, a display device comprises a first lower electrode, a rib including a first pixel aperture, a partition including a lower portion on the rib and an upper portion protruding from a side surface of the lower portion, a first upper electrode, and a first organic layer between the first lower electrode and the first upper electrode. The lower portion includes a bottom layer and a stem layer on the bottom layer. The bottom layer is formed of a material which has a smaller etching rate to a mixed acid containing phosphoric acid, nitric acid, and acetic acid than the stem layer and which is conductive.

公开(公告)号：US20230276657A1

公开(公告)日：2023-08-31

申请号：US18173069

申请日：2023-02-23

Applicant: Japan Display Inc.

Inventor： Nobuo IMAI ,  Kaichi FUKUDA ,  Takashi TSUCHIYA ,  Hiroshi OGAWA ,  Yuya YAMAMOTO

IPC: H10K59/12 ,  H10K59/122 ,  H10K71/20

CPC classification number: H10K59/1201 ,  H10K59/122 ,  H10K71/231

Abstract: According to one embodiment, a method of manufacturing a display device includes forming a lower electrode, forming an insulating layer covering the lower electrode, forming a partition including a lower portion on the insulating layer and an upper portion protruding from a side surface of the lower portion, forming, after the forming of the partition, a pixel aperture in the insulating layer, forming an organic layer in contact with the lower electrode via the aperture, forming an upper electrode which covering the organic layer and patterning the organic layer and the upper electrode to form a display element.

公开(公告)号：US20230255090A1

公开(公告)日：2023-08-10

申请号：US18165349

申请日：2023-02-07

Applicant: Japan Display Inc.

Inventor： Yuya YAMAMOTO ,  Nobuo IMAI ,  Hiroshi OGAWA

IPC: H10K59/80 ,  H10K71/00

CPC classification number: H10K59/8722 ,  H10K71/00

Abstract: According to one embodiment, a display device includes a lower electrode, a rib formed of silicon oxide or silicon oxynitride and including an aperture overlapping the lower electrode, a partition including a lower portion and an upper portion, an organic layer including a first portion located on the lower electrode and spaced apart from the lower portion of the partition, and a second portion located on the upper portion, an upper electrode including a first portion on the first portion of the organic layer and is in contact with the lower portion and a second portion on the second portion of the organic layer, a cap layer, and a sealing layer.

公开(公告)号：US20240206284A1

公开(公告)日：2024-06-20

申请号：US18522293

申请日：2023-11-29

Applicant: Japan Display Inc.

Inventor： Nobuo IMAI ,  Hiroshi OGAWA ,  Yuya YAMAMOTO

IPC: H10K59/80 ,  H10K71/16 ,  H10K71/60

CPC classification number: H10K59/8722 ,  H10K59/80521 ,  H10K71/16 ,  H10K71/60 ,  H10K2102/351

Abstract: According to one embodiment, a display device includes a lower electrode, a rib, a partition including bottom, stem and top portions, an organic layer covering the lower electrode, an upper electrode covering the organic layer and contacting the bottom portion, and a sealing layer continuously covering the partition and a thin film including the organic layer and the upper electrode. The bottom portion is formed of a molybdenum-tungsten alloy. A height from a lower surface of the bottom portion to an upper surface of the stem portion is less than or equal to 500 nm. A thickness of the sealing layer is less than or equal to 1.5 μm. A thickness of the bottom portion is greater than or equal to 50 nm.