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公开(公告)号：US20240130196A1
公开(公告)日：2024-04-18
申请号：US18482326
申请日：2023-10-06
Applicant: Japan Display Inc.
Inventor： Kaichi FUKUDA
CPC classification number: H10K59/80518 , H10K59/80524 , H10K59/871 , H10K59/879 , H10K71/164 , H10K71/60 , H10K2102/351
Abstract: According to one embodiment, a display device includes a base electrode, a rib including an aperture overlapping the base electrode, a lower electrode disposed at the aperture and electrically connected to the base electrode, a partition including a lower part disposed on the rib and an upper part projecting from a side surface of the lower part, a organic layer covering the lower electrode, and a upper electrode disposed on the organic layer. A periphery of the base electrode is covered by the rib. The base electrode is formed of a first metal material. A periphery of the lower electrode is located on the rib. The lower electrode is formed of a second metal material different from the first metal material.
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公开(公告)号：US20240099073A1
公开(公告)日：2024-03-21
申请号：US18470445
申请日：2023-09-20
Applicant: Japan Display Inc.
Inventor： Kaichi FUKUDA
IPC: H10K59/122 , H10K59/12 , H10K59/80
CPC classification number: H10K59/122 , H10K59/1201 , H10K59/873 , H10K59/879
Abstract: According to one embodiment, a display device includes an insulating layer formed of an inorganic material, a lower electrode provided on the insulating layer, a partition which surrounds the lower electrode and includes a conductive lower portion provided on the insulating layer and an upper portion protruding from a side surface of the lower portion, an organic layer which covers the lower electrode and emits light based on application of voltage, and an upper electrode which covers the organic layer and is in contact with the lower portion. The lower electrode includes an end portion located under the upper portion and having a thickness which decreases toward the lower portion.
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公开(公告)号：US20230354678A1
公开(公告)日：2023-11-02
申请号：US18299082
申请日：2023-04-12
Applicant: Japan Display Inc.
Inventor： Hirofumi MIZUKOSHI , Kaichi FUKUDA , Takanobu TAKENAKA , Masaru TAKAYAMA
IPC: H10K59/80 , H10K59/12 , H10K59/122
CPC classification number: H10K59/873 , H10K59/1201 , H10K59/122
Abstract: According to one embodiment, a manufacturing method of a display device includes forming processing substrate, forming an organic layer, forming an upper electrode, forming a transparent layer, and forming an inorganic layer. The forming the upper electrode includes inclining a first evaporation source with respect to a normal of the processing substrate and depositing a material emitted from the first evaporation source while conveying the processing substrate. The forming the inorganic layer includes inclining a second evaporation source to a side opposite to a side to which the first evaporation source is inclined and depositing a material emitted from the second evaporation source while conveying the processing substrate.
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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.
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公开(公告)号：US20230240118A1
公开(公告)日：2023-07-27
申请号：US18159091
申请日：2023-01-25
Applicant: Japan Display Inc.
Inventor： Kaichi FUKUDA
CPC classification number: H10K59/8721 , H10K71/00 , H10K2102/351
Abstract: According to one embodiment, a display device comprises a lower electrode, a rib, a partition, an upper electrode, an organic layer between the lower electrode and the upper electrode, and a sealing layer above the upper electrode. The partition includes a lower portion on the rib, and an upper portion on the lower portion with an end portion protruding from a side surface of the lower portion. The lower portion includes a first aluminum layer of a first aluminum alloy, and a second aluminum layer of pure aluminum or a second aluminum alloy different from the first aluminum alloy and which is arranged on the first aluminum layer.
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Patent Agency Ranking
公开(公告)号：US20250089469A1
公开(公告)日：2025-03-13
申请号：US18829328
申请日：2024-09-10
Applicant: Japan Display Inc.
Inventor： Kaichi FUKUDA
IPC: H10K59/122 , H10K59/12 , H10K59/80
Abstract: According to one embodiment, a display device includes an organic insulating layer in display and surrounding areas, a lower electrode in the display area, a rib layer, a first partition in the display area, a second partition in the surrounding area, an organic layer, an upper electrode, a sealing layer covering a stacked film including the organic layer and the upper electrode, and a resin layer covering the sealing layer. Each of the first and second partitions includes a lower portion and an upper portion. The resin layer directly covers the rib layer and the second partition in at least part of the surrounding area.
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公开(公告)号：US20250089466A1
公开(公告)日：2025-03-13
申请号：US18818698
申请日：2024-08-29
Applicant: Japan Display Inc.
Inventor： Takahiro USHIKUBO , Hiroyuki KIMURA , Arichika ISHIDA , Kaichi FUKUDA , Shinichi KAWAMURA , Takanobu TAKENAKA
IPC: H10K59/122 , H10K59/12
Abstract: According to one embodiment, a display device includes a lower electrode, a partition which has a conductive lower portion and an upper portion provided on the lower portion and protruding from a side surface of the lower portion, an organic layer provided on the lower electrode, and an upper electrode provided on the organic layer. The organic layer has a hole injection layer spaced apart from the partition, a first intermediate layer including a first light emitting layer, a first charge generation layer spaced apart from the partition, and a second intermediate layer including a second light emitting layer. The hole injection layer and the first charge generation layer are spaced apart from each other and are further spaced apart from the upper electrode.
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公开(公告)号：US20230389356A1
公开(公告)日：2023-11-30
申请号：US18363759
申请日：2023-08-02
Applicant: Japan Display Inc.
Inventor： Yuko MATSUMOTO , Kaichi FUKUDA
IPC: H10K59/12 , H10K59/35 , H10K59/122 , H10K59/80
CPC classification number: H10K59/1201 , H10K59/873 , H10K59/122 , H10K59/352
Abstract: According to one embodiment, in a manufacturing method of a display device, a first lower electrode, a second lower electrode and a third lower electrode are formed. A rib having first aperture overlapping the first lower electrode, a second aperture overlapping the second lower electrode, and a third aperture overlapping the third lower electrode is formed. A first thin film including a first light emitting layer is formed on the first lower electrode. A second thin film including a second light emitting layer is formed on the second lower electrode. An area of the first aperture is larger than an area of the second aperture.
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公开(公告)号：US20230380216A1
公开(公告)日：2023-11-23
申请号：US18317946
申请日：2023-05-16
Applicant: Japan Display Inc.
Inventor： Hirofumi MIZUKOSHI , Kaichi FUKUDA , Takanobu TAKENAKA , Masaru TAKAYAMA
CPC classification number: H10K59/1201 , H10K71/60 , C23C14/505 , C23C14/24 , C23C14/14 , C23C14/0694 , H10K59/8052
Abstract: According to one embodiment, a manufacturing method of a display device includes preparing a processing substrate, forming an organic layer, and forming an etching stopper layer on the organic layer. The forming the etching stopper layer includes carrying the processing substrate into a chamber, inside the chamber, emitting a material for forming the etching stopper layer from an evaporation source which inclines with respect to a normal of the processing substrate, and conveying the processing substrate while rotating the processing substrate in a plane orthogonal to the normal, and depositing the material emitted from the evaporation source on the processing substrate.
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公开(公告)号：US20230354674A1
公开(公告)日：2023-11-02
申请号：US18194657
申请日：2023-04-03
Applicant: Japan Display Inc.
Inventor： Kaichi FUKUDA
CPC classification number: H10K59/80515 , H10K50/15 , H10K50/16 , H10K50/171 , H10K50/181 , H10K59/80521 , H10K71/00
Abstract: According to one embodiment, a display device includes a lower electrode, a rib including a pixel aperture, a partition on the rib, an upper electrode, and an organic layer between the lower electrode and the upper electrode. The partition includes an insulating first portion, a conductive second portion which is provided on the first portion and is in contact with the upper electrode, and a third portion provided on the second portion. A lower end of the second portion protrudes in a width direction of the partition relative to the first portion. The third portion protrudes in the width direction relative to an upper end of the second portion.
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