公开(公告)号：US11895858B2

公开(公告)日：2024-02-06

申请号：US17481351

申请日：2021-09-22

Applicant: Japan Display Inc.

Inventor： Hayata Aoki

IPC: H01L51/50 ,  H01L27/32 ,  H10K50/17 ,  H10K50/15 ,  H10K59/122

CPC classification number: H10K50/17 ,  H10K50/15 ,  H10K59/122

Abstract: A display device includes: light-emitting regions different in luminescent colors and including luminescent layers separated for each of the luminescent colors; a low-threshold layer lower in threshold voltage than any one of the luminescent layers included in a pair of different-color light-emitting regions included in the light-emitting regions, different in the luminescent colors, and adjacent to each other; a continuous layer under the luminescent layers and the low-threshold layer, including first areas and a second area continuously, the first areas being in contact with the respective light-emitting regions, the second area being in contact with the low-threshold layer; pixel electrodes under the continuous layer, overlapping with the respective light-emitting regions; and a counter electrode over the luminescent layers and the low-threshold layer, being opposed to the pixel electrodes. The low-threshold layer is between the pair of different-color light-emitting regions.

公开(公告)号：US11980048B2

公开(公告)日：2024-05-07

申请号：US17699224

申请日：2022-03-21

Applicant: Japan Display Inc.

Inventor： Hayata Aoki ,  Masashi Tsubuku ,  Toshinari Sasaki

IPC: H10K50/858 ,  H10K50/81 ,  H10K50/828

CPC classification number: H10K50/828 ,  H10K50/81 ,  H10K50/858

Abstract: According to one embodiment, a display device comprises a first area including a pixel and a second area different from the first area, wherein the pixel comprises a pixel electrode, an organic material layer including a light-emitting layer, a common electrode, a first insulating layer, a second insulating layer having a refractive index lower than that of the first insulating layer, and a third insulating layer, the second area is an area not overlapping the light-emitting layer in plan view, the second area is a transparent area, and the second area comprises the first insulating layer provided therein, the second area does not comprise the second insulating layer.

公开(公告)号：US11818930B2

公开(公告)日：2023-11-14

申请号：US17645161

申请日：2021-12-20

Applicant: Japan Display Inc.

Inventor： Hayata Aoki ,  Hiroumi Kinjo ,  Masumi Nishimura

IPC: H10K59/122 ,  H10K59/35 ,  H10K59/131

CPC classification number: H10K59/131 ,  H10K59/353

Abstract: According to one embodiment, a display device includes a lower electrode arranged on a first insulating layer, a second insulating layer arranged on the first insulating layer, having an opening overlapping the lower electrode, and being in a lattice form, a feed line arranged on the second insulating layer, having a first line portion, a second line portion, and a third line portion being continuous with the first and second line portions and having a different width from the first and second line portions, an organic layer arranged in the opening and covering the lower electrode, and an upper electrode being in contact with the first, second and third line portions, and covering the organic layer.

公开(公告)号：US12114550B2

公开(公告)日：2024-10-08

申请号：US18481293

申请日：2023-10-05

Applicant: Japan Display Inc.

Inventor： Hayata Aoki ,  Hiroumi Kinjo ,  Masumi Nishimura

IPC: H10K59/131 ,  H10K50/86 ,  H10K59/122 ,  H10K59/35

CPC classification number: H10K59/131 ,  H10K59/353

Abstract: According to one embodiment, a display device includes a lower electrode arranged on a first insulating layer, a second insulating layer arranged on the first insulating layer, having an opening overlapping the lower electrode, and being in a lattice form, a feed line arranged on the second insulating layer, having a first line portion, a second line portion, and a third line portion being continuous with the first and second line portions and having a different width from the first and second line portions, an organic layer arranged in the opening and covering the lower electrode, and an upper electrode being in contact with the first, second and third line portions, and covering the organic layer.

公开(公告)号：US12069925B2

公开(公告)日：2024-08-20

申请号：US17699250

申请日：2022-03-21

Applicant: Japan Display Inc.

Inventor： Hayata Aoki ,  Masashi Tsubuku ,  Toshinari Sasaki

IPC: H10K59/35 ,  G09F9/33 ,  H10K50/828

CPC classification number: H10K59/353 ,  H10K50/828 ,  G09F9/335

Abstract: According to one embodiment, a display device includes a first area including a pixel and a second area different from the first area, wherein the pixel includes a pixel electrode, an organic material layer including a light-emitting layer, a first common electrode, and a second common electrode having transmittance higher than that of the first insulating layer, the second area is an area not overlapping the light-emitting layer in plan view, the second area is a transparent area, and the second area does not comprise the first common electrode provided therein.

公开(公告)号：US11315997B2

公开(公告)日：2022-04-26

申请号：US16826389

申请日：2020-03-23

Applicant: Japan Display Inc.

Inventor： Hayata Aoki ,  Kengo Kato ,  Jun Hanari ,  Yasuyuki Yamada

IPC: H01L27/32 ,  H01L51/56 ,  B32B3/02

Abstract: Display device includes a flexible substrate, a plurality of pixels disposed on a first surface of flexible substrate, and a plurality of alignment marks disposed along one side of the flexible substrate and identified each other. The plurality of alignment marks may be arranged in the same layer. When the plurality of pixels includes thin film transistor, the plurality of alignment marks may be formed of the same metal layer as the metal layer forming thin film transistor.

公开(公告)号：US12219804B2

公开(公告)日：2025-02-04

申请号：US17574611

申请日：2022-01-13

Applicant: Japan Display Inc.

Inventor： Hayata Aoki ,  Masumi Nishimura

IPC: H10K50/822 ,  H10K50/858 ,  H10K50/852 ,  H10K59/122

Abstract: According to one embodiment, a display device includes an insulating substrate, a first insulating layer disposed on the insulating substrate, a lower electrode disposed on the first insulating layer, a second insulating layer disposed on the first insulating layer and including an opening overlapping the lower electrode, an organic layer including a light-emitting layer, disposed in the opening and covering the lower electrode, an upper electrode comprising a first end surface, which is an inclined surface, directly above the second insulating layer and stacked on the organic layer and an optical adjustment layer including a second end surface on an inner side with respect to the first end surface and in contact with the upper electrode.

公开(公告)号：US12052880B2

公开(公告)日：2024-07-30

申请号：US17574812

申请日：2022-01-13

Applicant: Japan Display Inc.

Inventor： Hayata Aoki ,  Masumi Nishimura ,  Jun Nitta

IPC: H10K50/12 ,  H10K50/17 ,  H10K71/00

CPC classification number: H10K50/12 ,  H10K50/17 ,  H10K71/00

Abstract: According to one embodiment, a display device includes a lower electrode, a second insulating layer including an opening overlapping the lower electrode, an organic layer including a light-emitting layer and a functional layer, disposed in the opening and covering the lower electrode and an upper electrode covering the organic layer. The functional layer includes a first region located between the lower electrode and the light-emitting layer and a second region including an end surface located directly above the second insulating layer. A dopant concentration of a guest material in the second region is lower than the dopant concentration of the guest material in the first region.

公开(公告)号：US11641764B2

公开(公告)日：2023-05-02

申请号：US17695981

申请日：2022-03-16

Applicant: Japan Display Inc.

Inventor： Hayata Aoki ,  Kengo Kato ,  Jun Hanari ,  Yasuyuki Yamada

IPC: H01L27/32 ,  H01L51/56 ,  B32B3/02

Abstract: Display device includes a flexible substrate, a plurality of pixels disposed on a first surface of flexible substrate, and a plurality of alignment marks disposed along one side of the flexible substrate and identified each other. The plurality of alignment marks may be arranged in the same layer. When the plurality of pixels includes thin film transistor, the plurality of alignment marks may be formed of the same metal layer as the metal layer forming thin film transistor.

公开(公告)号：US10734468B2

公开(公告)日：2020-08-04

申请号：US16392757

申请日：2019-04-24

Applicant: Japan Display Inc.

Inventor： Hayata Aoki ,  Masumi Nishimura

IPC: H01L27/32 ,  H01L51/00

Abstract: A display device according to an embodiment of the present invention includes: a display area provided with a pixel array part; a terminal area arranged on a backside of the display area and provided with a connection terminal to which a signal is supplied from outside; and a bendable area to connect the display area and the terminal area, wherein the display device is provided with, in the bendable area, an under layer having flexibility, and a connection wiring which is provided on the under layer and extends from a side of the pixel array part to a side of the connection terminal, and an upper surface of the under layer has an uneven shape so that the connection wiring repeatedly turns in directions of a thickness of the under layer.