公开(公告)号：US20230010053A1

公开(公告)日：2023-01-12

申请号：US17804189

申请日：2022-05-26

Applicant: Japan Display Inc.

Inventor： Masumi NISHIMURA ,  Hayata AOKI ,  Hiroumi KINJO

IPC: H01L27/32

Abstract: In an embodiment, a display device comprises a substrate, display elements, a partition wall, a metal layer, and an inorganic layer. Each of the display elements comprises first and second electrode and an organic layer. The partition wall is between the display elements. The metal layer is along the partition wall. The inorganic layer covers the display elements, the partition wall, and the metal layer. The partition wall includes a first portion, and a second portion which is smaller in width than the first portion. The metal layer covers a first area on a side surface of the second portion. The inorganic layer covers a second area on the side surface. The second area is between the first area and the first portion.

公开(公告)号：US20220367834A1

公开(公告)日：2022-11-17

申请号：US17661417

申请日：2022-04-29

Applicant: Japan Display Inc.

Inventor： Hiroumi KINJO ,  Hayata AOKI ,  Masumi NISHIMURA

IPC: H01L51/52 ,  H01L27/32

Abstract: According to one embodiment, a display device comprises a base, display elements, a partition wall, first to third inorganic layers and a resin layer. The display element includes first and second electrodes and a light-emitting layer between the electrodes. The partition wall is located between adjacent pair of the display elements. The first inorganic layer covers the display elements and the partition wall. The second inorganic layer covers the first inorganic layer. The resin layer covers the second inorganic layer. The third inorganic layer covers the resin layer.

公开(公告)号：US20220310713A1

公开(公告)日：2022-09-29

申请号：US17699250

申请日：2022-03-21

Applicant: Japan Display Inc.

Inventor： Hayata AOKI ,  Masashi TSUBUKU ,  Toshinari SASAKI

IPC: H01L27/32 ,  H01L51/52

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：US20220231263A1

公开(公告)日：2022-07-21

申请号：US17574611

申请日：2022-01-13

Applicant: Japan Display Inc.

Inventor： Hayata AOKI ,  Masumi NISHIMURA

IPC: H01L51/52

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：US20220115620A1

公开(公告)日：2022-04-14

申请号：US17481351

申请日：2021-09-22

Applicant: Japan Display Inc.

Inventor： Hayata AOKI

IPC: H01L51/50 ,  H01L27/32

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：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：US20240260307A1

公开(公告)日：2024-08-01

申请号：US18420786

申请日：2024-01-24

Applicant: Japan Display Inc.

Inventor： Hayata AOKI

IPC: H10K50/858 ,  H10K50/155 ,  H10K50/17 ,  H10K50/818 ,  H10K102/00

CPC classification number: H10K50/858 ,  H10K50/155 ,  H10K50/17 ,  H10K50/818 ,  H10K2102/351

Abstract: A display device includes a substrate, and a plurality of light-emitting elements each composed of a pixel electrode, a lower buffer layer, a light-emitting layer, an upper buffer layer, and a counter electrode stacked in order on the substrate. The lower buffer layer comprises a first hole transport layer, a second hole transport layer, and a third hole transport layer stacked in order on the pixel electrode, and refractive index of the second hole transport layer is higher than refractive index of the first hole transport layer and refractive index of the third hole transport layer.

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：US20240244923A1

公开(公告)日：2024-07-18

申请号：US18411034

申请日：2024-01-12

Applicant: Japan Display Inc.

Inventor： Hayata AOKI ,  Jun NITTA ,  Marina MOCHIZUKI

IPC: H10K59/80 ,  H10K59/122 ,  H10K59/35 ,  H10K102/10

CPC classification number: H10K59/80518 ,  H10K59/122 ,  H10K59/353 ,  H10K2102/103

Abstract: According to one embodiment, a display device includes a plurality of pixels including at least a first pixel and a second pixel, each of the plurality of pixels comprising an anode including a reflective electrode and a transparent electrode, an organic EL layer provided on the anode, wherein a first anode of the first pixel includes a first reflective electrode and a first transparent electrode, a second anode of the second pixel includes a second reflective electrode and a second transparent electrode, an end portion of the first reflective electrode and an end portion of the first transparent electrode coincide with each other, and the second transparent electrode covers the second reflective electrode.

公开(公告)号：US20240215294A1

公开(公告)日：2024-06-27

申请号：US18391684

申请日：2023-12-21

Applicant: Japan Display Inc.

Inventor： Nobuto MANAGAKI ,  Hayata AOKI

IPC: H10K50/18 ,  H10K59/35 ,  H10K71/10 ,  H10K101/40

CPC classification number: H10K50/181 ,  H10K59/35 ,  H10K71/10 ,  H10K2101/40

Abstract: According to one embodiment, a display device includes an anode, a cathode opposing the anode and an organic layer located between the anode and the cathode, and the organic layer includes a hole injection layer, a hole transport layer, an electron blocking layer, a light emitting layer, a hole blocking layer, an electron transport layer, and an electron injection layer, and at least one of the electron blocking layer and the hole blocking layer has a resistance of 10% or more and 30% or less in a thickness direction when a total resistance between the anode and the cathode is set to 100%.