公开(公告)号：US20240373724A1

公开(公告)日：2024-11-07

申请号：US18773980

申请日：2024-07-16

Applicant: Japan Display Inc.

Inventor： Masumi NISHIMURA

IPC: H10K59/80 ,  H10K59/122

Abstract: A light emitting device includes a substrate, a partition wall defining a plurality of pixels in a matrix over the substrate, a reflective layer covering the partition wall, and an insulating layer covering the reflective layer. Each of the plurality of pixels arranged in a matrix includes a conductive alignment layer over the substrate, a semiconductor layer containing gallium nitride over the conductive alignment layer, a light emitting layer over the semiconductor layer, and an electrode layer over the light emitting layer. A distance from an upper surface of the substrate to an upper surface of the reflective layer in a region overlapping the partition wall is greater than a distance from the upper surface of the substrate to an upper surface of the light emitting layer in a region not overlapping the partition wall.

公开(公告)号：US20240274752A1

公开(公告)日：2024-08-15

申请号：US18616855

申请日：2024-03-26

Applicant: Japan Display Inc.

Inventor： Hayata AOKI ,  Masumi NISHIMURA ,  Hiroumi KINJO

IPC: H01L33/32 ,  H01L25/075 ,  H01L33/10 ,  H01L33/16

CPC classification number: H01L33/32 ,  H01L25/0753 ,  H01L33/10 ,  H01L33/16

Abstract: A light emitting device includes a plurality of pixels arranged in a matrix in a first direction and in a second direction orthogonal to the first direction. Each of the plurality of pixels includes an amorphous substrate, a semi-transparent reflective layer over the amorphous substrate, a first insulating alignment layer over the semi-transparent reflective layer, a first semiconductor layer over the first insulating alignment layer, a light emitting layer over the first semiconductor layer, a second semiconductor layer over the light emitting layer, and an electrode layer over the second semiconductor layer. Each of the first semiconductor layer, the light emitting layer, and the second semiconductor layer includes gallium nitride.

公开(公告)号：US20240258416A1

公开(公告)日：2024-08-01

申请号：US18597074

申请日：2024-03-06

Applicant: Japan Display Inc.

Inventor： Hiroumi KINJO ,  Masumi NISHIMURA ,  Hayata AOKI

IPC: H01L29/778 ,  H01L29/20

CPC classification number: H01L29/7786 ,  H01L29/2003

Abstract: A transistor according to an embodiment of the present invention includes an amorphous substrate, a conductive alignment layer over the amorphous substrate, a heterojunction structure including a semiconductor layer and a polarization layer in contact with the semiconductor layer over the conductive alignment layer, and a gate electrode over the heterojunction structure. The heterojunction structure comprises a recessed portion in a region overlapping the gate electrode. The recessed portion may be provided in the polarization layer or the semiconductor layer.

公开(公告)号：US20240186406A1

公开(公告)日：2024-06-06

申请号：US18438676

申请日：2024-02-12

Applicant: Japan Display Inc.

Inventor： Hiroumi KINJO ,  Masumi NISHIMURA ,  Hayata AOKI

IPC: H01L29/778 ,  H01L27/15 ,  H01L29/20 ,  H01L33/32 ,  H01L33/58

CPC classification number: H01L29/7786 ,  H01L27/15 ,  H01L29/2003 ,  H01L33/32 ,  H01L33/58

Abstract: A semiconductor device, which can provide semiconductor device using gallium nitride layer, includes an amorphous glass substrate, an oriented metal layer arranged above the amorphous glass substrate and having a crystal orientation, a first gallium nitride layer arranged above the oriented metal layer and having a first conductive type, a second gallium nitride layer arranged above the first gallium nitride layer, connected to the first gallium nitride layer, having higher conductive property than the first gallium nitride layer, including a source-side second gallium nitride layer and a drain-side second gallium nitride layer facing each other, and having a second conductive type, a gate electrode facing the first gallium nitride layer, and a gate insulating layer between the first gallium nitride layer and the gate electrode, wherein the gate insulating layer is positioned between the source-side second gallium nitride layer and the drain-side second gallium nitride layer in a cross-sectional view.

公开(公告)号：US20240040872A1

公开(公告)日：2024-02-01

申请号：US18481293

申请日：2023-10-05

Applicant: Japan Display Inc.

Inventor： Hayata AOKI ,  Hiroumi KINJO ,  Masumi NISHIMURA

IPC: H10K59/131 ,  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：US20230420485A1

公开(公告)日：2023-12-28

申请号：US18466043

申请日：2023-09-13

Applicant: Japan Display Inc.

Inventor： Masanobu IKEDA ,  Masumi NISHIMURA ,  Masashi TSUBUKU

IPC: H01L27/15

CPC classification number: H01L27/156 ,  H01L27/1225

Abstract: A display device includes an amorphous glass substrate, a first buffer layer on a first surface of the amorphous glass substrate, a transistor including a first gallium nitride layer over the first buffer layer, a second buffer layer on the first surface of the amorphous glass substrate, and a light emitting diode including a second gallium nitride layer over the second buffer layer. The transistor and the light emitting diode are electrically connected to each other.

公开(公告)号：US20230389393A1

公开(公告)日：2023-11-30

申请号：US18448989

申请日：2023-08-14

Applicant: Japan Display Inc.

Inventor： Hiroumi KINJO ,  Hayata AOKI ,  Masumi NISHIMURA

IPC: H10K59/80 ,  H10K59/122

CPC classification number: H10K59/80515 ,  H10K59/122

Abstract: According to one embodiment, a display device comprises a rib including an aperture and an upper surface, a partition on the upper surface, a first electrode overlapping the aperture, an organic layer including a first end portion on the upper surface and covering the first electrode, a second electrode including a second end portion on the upper surface and covering the organic layer, a first inorganic layer on the rib, and a second inorganic layer covering the partition, the second electrode, and the first inorganic layer. At least a part of the first inorganic layer is located between the first end portion and the partition and is in contact with the second inorganic layer.

公开(公告)号：US20230380248A1

公开(公告)日：2023-11-23

申请号：US18361939

申请日：2023-07-31

Applicant: Japan Display Inc.

Inventor： Hayata AOKI ,  Masumi NISHIMURA

IPC: H10K59/80

CPC classification number: H10K59/878

Abstract: According to one embodiment, a display device includes a substrate, a first lower electrode and a second lower electrode arranged on the substrate, a first organic layer including a light emitting layer and arranged on the first lower electrode, a second organic layer including a light emitting layer and arranged on the second lower electrode, a first upper electrode arranged on the first organic layer, a second upper electrode arranged on the second organic layer and separated from the first upper electrode, and a reflective layer arranged between the first upper electrode and the second upper electrode.

公开(公告)号：US20220392981A1

公开(公告)日：2022-12-08

申请号：US17804869

申请日：2022-06-01

Applicant: Japan Display Inc.

Inventor： Masumi NISHIMURA ,  Hayata AOKI

IPC: H01L27/32 ,  H01L51/56

Abstract: According to one embodiment, an electronic device includes a lower electrode, a second insulating layer including an opening overlapping the lower electrode, an organic layer covering the lower electrode at the opening, an upper electrode covering the organic layer, and a barrier wall on the second insulating layer. The barrier wall includes a first layer formed of a metal material and including a first side surface which is in contact with the upper electrode, a second layer disposed above the first layer and extending from the first side surface toward the opening, and a protective layer formed of a material different from a material of the organic layer and covering at least an upper surface of the second layer.

公开(公告)号：US20220238852A1

公开(公告)日：2022-07-28

申请号：US17579788

申请日：2022-01-20

Applicant: Japan Display Inc.

Inventor： Hayata AOKI ,  Masumi NISHIMURA

IPC: H01L51/56 ,  H01L51/50

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, disposed in the opening and covering the lower electrode and an upper electrode covering the organic layer. The light-emitting layer includes a first bottom surface, a first end surface and a second end surface intersecting the first end surface. An angle between the first end surface and the first bottom surface in a cross-sectional view along a first direction is greater than an angle between the second end surface and the first bottom surface in a cross-sectional view along a second direction.