公开(公告)号：US20250017092A1

公开(公告)日：2025-01-09

申请号：US18763281

申请日：2024-07-03

Applicant: Japan Display Inc.

Inventor： Naoya IWAHASHI ,  Sho YANAGISAWA ,  Mitsugu TAMEKAWA

IPC: H10K71/16 ,  C23C14/04 ,  C23C14/12 ,  C23C14/24

Abstract: According to one embodiment, a method of manufacturing a display device includes depositing an organic EL material from an evaporation source onto the substrate via the vapor deposition mask by heating the evaporation source, thereby forming an organic EL layer, wherein the vapor deposition mask comprises a plurality of thin-film regions and a retaining frame, each of the plurality of thin-film regions includes a plurality of mask regions and connection regions, each of the plurality of thin-film regions has a propeller shape, each of the plurality of mask regions has a circular shape, and each of the plurality of mask regions comprises a plurality of aperture regions.

公开(公告)号：US20230284510A1

公开(公告)日：2023-09-07

申请号：US18099261

申请日：2023-01-20

Applicant: Japan Display Inc.

Inventor： Sho YANAGISAWA ,  Masato ISHIKAWA ,  Tatsuya NISHINO ,  Hideyuki TAKAHASHI ,  Hiroshi TABATAKE

IPC: H10K59/80 ,  H10K59/131

CPC classification number: H10K59/8723 ,  H10K59/131 ,  H10K59/8722

Abstract: An organic electroluminescence display device includes a substrate including a first surface, a first area arranged on the first surface and including one or more first spacers and a plurality of pixels each including a light-emitting layer, a third area arranged on the first surface, surrounding the first area, and not including spacers, and a second area arranged on the first surface, surrounding the third area, and including one or more second spacers. The plurality of pixels each including the light-emitting layer is arranged along a first direction and a second direction intersecting the first direction, and a length of the third area in the second direction is a total length of pitches for at least two pixels.

公开(公告)号：US20220320472A1

公开(公告)日：2022-10-06

申请号：US17656888

申请日：2022-03-29

Applicant: Japan Display Inc.

Inventor： Hiroshi TABATAKE ,  Sho YANAGISAWA

IPC: H01L51/52

Abstract: According to one embodiment, a display device includes a base, a wiring layer disposed on the base, and in which a plurality of wiring lines are disposed, a display element disposed on the wiring layer and including an organic layer and a metal wiring line disposed to surround the display element, and the wiring layer includes a first portion in which wiring lines are densely arranged and a second portion in which wiring lines are sparsely arranged, and a width of a portion of the metal wiring line, which is disposed on a side of the second portion is greater than a width of a portion of the metal wiring line, disposed on a side of the first portion.

公开(公告)号：US20250160188A1

公开(公告)日：2025-05-15

申请号：US19006498

申请日：2024-12-31

Applicant: Japan Display Inc.

Inventor： Sho YANAGISAWA ,  Tetsuo MORITA ,  Kenji HARADA ,  Hiroshi TABATAKE ,  Hideyuki TAKAHASHI

IPC: H10K59/88 ,  H10K59/122 ,  H10K59/131

Abstract: According to one embodiment, a display device includes a substrate, first and second insulating layers, first and second pixel electrodes, first and second organic layers, first and second feed lines, first and second partitions, and a common electrode including first and second parts covering the first and second organic layers. The first organic layer is between the partitions. The second feed line and the second partition are located between the organic layers. The partitions are shaped such that a width of an upper part is greater than a width of a lower part. The first part is in contact with the first feed line between the first partition and the first organic layer.

公开(公告)号：US20250143093A1

公开(公告)日：2025-05-01

申请号：US18921030

申请日：2024-10-21

Applicant: Japan Display Inc.

Inventor： Naoya IWAHASHI ,  Sho YANAGISAWA

IPC: H10K59/122 ,  H10K59/35

Abstract: According to one embodiment, a display device includes a substrate, an organic insulating layer disposed above the substrate over a display area in which a plurality of display elements are disposed and over a peripheral area, a first partition disposed between the display elements adjacent to each other, and a second partition disposed in the peripheral area. The first partition and the second partition each include a conductive lower portion and an upper portion protruding from a side surface of the lower portion, the organic insulating layer includes an aperture in the peripheral area, and the second partition is disposed along an edge of the aperture on an outer side of the aperture.

公开(公告)号：US20250133914A1

公开(公告)日：2025-04-24

申请号：US18911261

申请日：2024-10-10

Applicant: Japan Display Inc.

Inventor： Ryota TAKASAKI ,  Naoya IWAHASHI ,  Sho YANAGISAWA

IPC: H10K59/122

Abstract: According to one embodiment, a display device includes an organic insulating layer provided over a display area and a surrounding area, a lower electrode provided in the display area, an inorganic insulating layer provided on the organic insulating layer, an organic layer provided on the lower electrode, an upper electrode provided on the organic layer, and a plurality of surrounding partitions provided in the surrounding area. The organic insulating layer has a removed portion along an outer edge of a substrate in the surrounding area. The inorganic insulating layer has a loop groove which surrounds the display area in the surrounding area. The surrounding partitions include a pair of first partitions facing each other across the groove.

公开(公告)号：US20250113708A1

公开(公告)日：2025-04-03

申请号：US18899440

申请日：2024-09-27

Applicant: Japan Display Inc.

Inventor： Naoya IWAHASHI ,  Sho YANAGISAWA ,  Hideyuki TAKAHASHI ,  Ryota TAKASAKI ,  Kazumi IIZAWA

IPC: H10K59/122

Abstract: According to one embodiment, a display device includes a lower electrode in a display area, a rib layer in the display area and a surrounding area, a first partition above the rib layer in the display area, an organic layer, an upper electrode and a second partition above the rib layer in the surrounding area. The rib layer has a pixel aperture. The organic layer is in contact with the lower electrode through the pixel aperture. The upper electrode covers the organic layer and is in contact with the first partition. Each of the partitions includes a lower portion and an upper portion. The second partition includes segments spaced apart from each other. Each of the segments has apertures.

公开(公告)号：US20250057014A1

公开(公告)日：2025-02-13

申请号：US18769470

申请日：2024-07-11

Applicant: Japan Display Inc.

Inventor： Sho YANAGISAWA ,  Hideyuki TAKAHASHI

IPC: H10K59/80 ,  H10K59/122

Abstract: According to one embodiment, a display device includes a substrate having a display area and a surrounding area, a plurality of display elements each of which includes a lower electrode, an upper electrode and an organic layer, a first partition provided between the adjacent display elements, a first dam portion which protrudes to an upper side of the substrate and surrounds the display area, and a second partition which overlaps at least part of the first dam portion. Further, each of the first and second partitions includes a conductive lower portion and an upper portion having an end portion protruding from a side surface of the lower portion.

公开(公告)号：US20250040373A1

公开(公告)日：2025-01-30

申请号：US18770692

申请日：2024-07-12

Applicant: Japan Display Inc.

Inventor： Sho YANAGISAWA

IPC: H10K59/131 ,  H10K59/12 ,  H10K59/80 ,  H10K71/16 ,  H10K77/10

Abstract: According to one embodiment, a display device includes a resinous substrate having flexibility, a circuit layer including a plurality of insulating layers provided over a display area and a surrounding area, a first organic insulating layer provided on the circuit layer, a first inorganic insulating layer provided on the first organic insulating layer, and a first partition including a first lower portion provided on the first inorganic insulating layer and a first upper portion which is provided on the first lower portion and protrudes from a side surface of the lower portion. The circuit layer has a belt-like area in which at least one of the plurality of insulating layers is lost in a belt-like shape. The first partition is provided in the belt-like area.

公开(公告)号：US20240276860A1

公开(公告)日：2024-08-15

申请号：US18436096

申请日：2024-02-08

Applicant: Japan Display Inc.

Inventor： Sho YANAGISAWA ,  Hiroshi TABATAKE ,  Kota MAKISHI ,  Kazuyuki ENDOU

IPC: H10K71/70 ,  H10K59/131 ,  H10K59/80

CPC classification number: H10K71/70 ,  H10K59/131 ,  H10K59/871

Abstract: According to one embodiment, a mother substrate for a display device includes an inspection portion. The inspection portion includes first, second, third and fourth pads, a first line portion connected to the first pad, a second line portion connected to the second pad, a third line portion connected to the third pad and the fourth pad and including a middle portion, a first partition connected to the middle portion, a second partition surrounding the first partition, an organic layer provided between the first partition and the second partition, and an upper electrode which covers the organic layer. The upper electrode is in contact with a lower portion of the first partition and a lower portion of the second partition.