公开(公告)号：US20250079257A1

公开(公告)日：2025-03-06

申请号：US18950404

申请日：2024-11-18

Applicant: Japan Display Inc.

Inventor： Masanobu IKEDA ,  Masumi NISHIMURA

IPC: H01L23/373 ,  H01L21/02 ,  H01L23/15 ,  H01L29/20

Abstract: A gallium nitride-based semiconductor device includes an amorphous glass substrate having a first surface and a second surface opposite to the first surface; a gallium nitride-based semiconductor layer on the first surface of the amorphous glass substrate, and a compensation layer on the second surface of the amorphous glass substrate. A thermal expansion coefficient of the compensation layer is more than a thermal expansion coefficient of the amorphous glass substrate and less than a thermal expansion coefficient of the gallium nitride-based semiconductor layer.

公开(公告)号：US20250031564A1

公开(公告)日：2025-01-23

申请号：US18906230

申请日：2024-10-04

Applicant: Japan Display Inc.

Inventor： Masumi NISHIMURA

IPC: H10K77/10 ,  H01R12/62 ,  H10K50/805 ,  H10K50/814 ,  H10K50/824 ,  H10K50/84 ,  H10K50/844 ,  H10K59/122 ,  H10K59/125 ,  H10K59/131 ,  H10K102/00

Abstract: In a display device including a flexible display panel, the risk of disconnection of a wiring due to bending is reduced. A display panel includes a display function layer including display elements and a wiring on one major surface of a base material having flexibility. The display panel includes, on the one major surface of the base material, an organic-film-covered wiring area where the surface of the wiring is covered with an organic planarization film that is an organic insulating film in direct contact with the wiring. The display panel includes, in the plane thereof, a display area where the display elements are arranged and a component mounting area that is a peripheral area located outside the display area. As the organic-film-covered wiring area, a curved area is provided in the peripheral area.

公开(公告)号：US20240282889A1

公开(公告)日：2024-08-22

申请号：US18647501

申请日：2024-04-26

Applicant: Japan Display Inc. ,  TOSOH CORPORATION

Inventor： Masumi NISHIMURA ,  Masashi TSUBUKU ,  Yoshihiro UEOKA ,  Yuya SUEMOTO ,  Masami MESUDA

IPC: H01L33/32 ,  H01L33/00 ,  H01L33/12 ,  H01L33/16

CPC classification number: H01L33/32 ,  H01L33/007 ,  H01L33/12 ,  H01L33/16

Abstract: A stacked structure includes an amorphous substrate, a buffer layer on the amorphous substrate, and a gallium nitride-based semiconductor layer on the buffer layer. The gallium nitride-based semiconductor layer includes at least one gallium nitride layer, and an oxygen concentration of the gallium nitride layer is less than 1×1021/cm3.

公开(公告)号：US20240274648A1

公开(公告)日：2024-08-15

申请号：US18647400

申请日：2024-04-26

Applicant: Japan Display Inc.

Inventor： Hiroumi KINJO ,  Masumi NISHIMURA ,  Hayata AOKI

IPC: H01L27/15

CPC classification number: H01L27/156

Abstract: A display device includes a transistor on a first region of an amorphous substrate and an LED on a second region different from the first region of the amorphous substrate. Each of the transistor and the LED includes a conductive alignment layer, a first semiconductor layer over the conductive alignment layer, and a second semiconductor layer over the first semiconductor layer. The conductive alignment layer, the first semiconductor layer, and the second semiconductor layer of the transistor are the same layer as the conductive alignment layer, the first semiconductor layer, and the second semiconductor layer of the LED, respectively. In the transistor, the first semiconductor layer is in contact with the second semiconductor layer. In the LED, a light emitting layer is provided between the first semiconductor layer and the second semiconductor layer.

公开(公告)号：US20240250162A1

公开(公告)日：2024-07-25

申请号：US18397224

申请日：2023-12-27

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 using a gallium nitride layer has an amorphous glass substrate, an oriented insulating layer arranged on the amorphous glass substrate and having a crystal orientation, a first gallium nitride layer arranged on the oriented insulating layer and in contact with the oriented insulating layer, the first gallium nitride layer being a first conductivity type, a gate electrode opposed to the first gallium nitride layer, and a gate insulating layer between the first gallium nitride layer and the gate electrode. The oriented insulating layer may have a plane with 6-fold rotational symmetry.

公开(公告)号：US20240090308A1

公开(公告)日：2024-03-14

申请号：US18515402

申请日：2023-11-21

Applicant: Japan Display Inc.

Inventor： Masumi NISHIMURA

IPC: H10K77/10 ,  H01R12/62 ,  H10K50/805 ,  H10K50/814 ,  H10K50/824 ,  H10K50/84 ,  H10K50/844 ,  H10K59/122 ,  H10K59/125 ,  H10K59/131

CPC classification number: H10K77/111 ,  H01R12/62 ,  H10K50/805 ,  H10K50/814 ,  H10K50/824 ,  H10K50/84 ,  H10K50/844 ,  H10K59/122 ,  H10K59/125 ,  H10K59/131 ,  H10K2102/00 ,  Y02E10/549

Abstract: In a display device including a flexible display panel, the risk of disconnection of a wiring due to bending is reduced. A display panel includes a display function layer including display elements and a wiring on one major surface of a base material having flexibility. The display panel includes, on the one major surface of the base material, an organic-film-covered wiring area where the surface of the wiring is covered with an organic planarization film that is an organic insulating film in direct contact with the wiring. The display panel includes, in the plane thereof, a display area where the display elements are arranged and a component mounting area that is a peripheral area located outside the display area. As the organic-film-covered wiring area, a curved area is provided in the peripheral area.

公开(公告)号：US20240023392A1

公开(公告)日：2024-01-18

申请号：US18364478

申请日：2023-08-03

Applicant: Japan Display Inc.

Inventor： Hayata AOKI ,  Masumi NISHIMURA ,  Hiroumi KINJO

IPC: H10K59/131 ,  H10K59/12 ,  H10K59/122

CPC classification number: H10K59/131 ,  H10K59/1201 ,  H10K59/122

Abstract: According to one embodiment, a display device includes a first lower electrode and a second lower electrode, a power supply line, a first organic layer including a light emitting layer and covering the first lower electrode, a second organic layer including a light emitting layer and covering the second lower electrode, a first upper electrode being in contact with the power supply line and covering the first organic layer, a second upper electrode being in contact with the power supply line and covering the second organic layer, and a first inorganic insulating film covering the first upper electrode and the second upper electrode and exposing the power supply line.

公开(公告)号：US20220310766A1

公开(公告)日：2022-09-29

申请号：US17841669

申请日：2022-06-16

Applicant: Japan Display Inc.

Inventor： Masumi NISHIMURA ,  Hiroshi TABATAKE ,  Akihito SATO

IPC: H01L27/32

Abstract: A display includes a plurality of first wirings which are provided on a first layer and each of which is arranged parallel to a first direction in a first area, and which are arranged on a second layer in a second area; a second wiring which is provided in the first layer in the first area and which is provided on a layer in the second area; and a third wiring which is provided on the first layer and arranged between the first wirings in the first area and which is arranged to intersect with first wirings in the second area. The first wirings is arranged to be inclined to the same side in the first direction in the second area. The second wiring is arranged to intersect with a portion of the plurality of first wirings in a plan view, in the second area.

公开(公告)号：US20220231260A1

公开(公告)日：2022-07-21

申请号：US17714233

申请日：2022-04-06

Applicant: Japan Display Inc.

Inventor： Masumi NISHIMURA

IPC: H01L51/52 ,  H01L27/32 ,  H04M1/02 ,  H01L31/0392 ,  G06F1/16 ,  H01L23/498 ,  H01L51/00 ,  H01L41/047

Abstract: A display device includes a display panel including a display region, a terminal region provided with a terminal, and a bending region located between the display region and the terminal region and capable of bending, the terminal region being located on a rear surface side opposite to a display surface side with respect to the display region based on the bending region bent and a protective coating provided on the display surface side of the bending region. When a direction in which the display region, the bending region, and the terminal region are arranged is defined as a first direction and a direction crossing the first direction is defined as a second direction, the bending region includes a bank portion located in the second direction with respect to the protective coating, projecting to the display surface side, and extending in the first direction.

公开(公告)号：US20190341442A1

公开(公告)日：2019-11-07

申请号：US16512646

申请日：2019-07-16

Applicant: Japan Display Inc.

Inventor： Kenta KAJIYAMA ,  Masumi NISHIMURA

IPC: H01L27/32 ,  H01L51/00

Abstract: A display device according to an embodiment of the present invention includes: an insulating sheet provided from a display region to a drive portion forming region, including, in a curved region, a first film-thickness region having a first film thickness thinner than a film thickness at the display region and a film thickness at the drive portion forming region, and including a first step portion disposed between the display region and the first film-thickness region and a second step portion disposed between the drive portion forming region and the first film-thickness region, first and second wiring lines crossing the first step portion and the second step portion above the insulating sheet and electrically connecting a pixel array portion with a drive portion, and an insulating wall extending from the first step portion to the second step portion between the first wiring line and the second wiring line.