公开(公告)号：US20240085750A1

公开(公告)日：2024-03-14

申请号：US18448437

申请日：2023-08-11

Applicant: Japan Display Inc.

Inventor： Takuo KAITOH ,  Akihiro HANADA ,  Yoshinori TANAKA

IPC: G02F1/1362

CPC classification number: G02F1/136286

Abstract: A display device includes a first substrate, a gate wiring on the first substrate, a first insulating layer on the gate wiring, a source wiring on the first insulating layer and intersecting the gate wiring, a second insulating layer on the source wiring, a pixel electrode on the second insulating layer; and a first buffer layer between the first substrate and the first insulating layer. A refractive index of the first buffer layer is higher than a refractive index of the first substrate, at an interface between the first buffer layer and the first substrate, and the refractive index of the first buffer layer is lower than a refractive index of the first insulating layer, at an interface between the first buffer layer and the first insulating layer.

公开(公告)号：US20250013098A1

公开(公告)日：2025-01-09

申请号：US18761325

申请日：2024-07-02

Applicant: Japan Display Inc.

Inventor： Tenfu NAKAMURA ,  Keiji TAGO ,  Yoshinori TANAKA

IPC: G02F1/13357 ,  G02F1/1362

Abstract: According to one embodiment, the transparent layer has a plurality of band portions, each of which has a triangular shape with a first edge, second edge and third edge, the first edge is shorter than the second edge and third edge, the second edge is shorter than the edge side, the first edge extends along the first direction, a direction of extension of an imaginary line connecting a first point at a center of the first edge and a second point where the second and third edges intersect is a direction of extension of each of the band portions, the direction of extension is tilted at 4° to the second direction, and a length of the first edge is shorter than an interval between each adjacent pair of the signal lines.

公开(公告)号：US20240295768A1

公开(公告)日：2024-09-05

申请号：US18586835

申请日：2024-02-26

Applicant: Japan Display Inc.

Inventor： Yoshinori TANAKA

IPC: G02F1/1335

CPC classification number: G02F1/133502 ,  G02F2203/01

Abstract: A display device including a first substrate, a second substrate, a liquid crystal layer arranged between the first substrate and the second substrate, a first light guide plate adhered and fixed to the first substrate via a first adhesive layer, a second light guide plate adhered and fixed to the second substrate via a second adhesive layer, a light source unit arranged at a position facing a first side surface of the second light guide plate, and a low refractive index layer interposed in a part of a region between the second light guide plate and the second adhesive layer and having a refractive index lower than that of the first light guide plate, in which a thickness of the low refractive index layer is larger than 800 nm is used.

公开(公告)号：US20230056073A1

公开(公告)日：2023-02-23

申请号：US17889403

申请日：2022-08-17

Applicant: Japan Display Inc.

Inventor： Jin HIROSAWA ,  Yoshinori TANAKA ,  Masanobu IKEDA

IPC: H01L33/58 ,  G02B3/00 ,  H01L25/16

Abstract: According to one embodiment, an optical device includes a first light-emitting element and a second light-emitting element, a light-shielding layer disposed to overlap a gap between the first light-emitting element and the second light-emitting element and including a first opening overlapping the first light-emitting element and a second opening overlapping the second light-emitting element, an overcoat layer covering the light-shielding layer, a first micro-lens disposed on the overcoat layer and overlapping the first opening and a second micro-lens disposed on the overcoat layer and overlapping the second opening, and an edge of each of the first micro-lens and the second micro-lens overlaps the light-shielding layer.

公开(公告)号：US20220336716A1

公开(公告)日：2022-10-20

申请号：US17718359

申请日：2022-04-12

Applicant: Japan Display Inc.

Inventor： Jin HIROSAWA ,  Masanobu IKEDA ,  Yoshinori TANAKA ,  Junko NAGASAWA

IPC: H01L33/58 ,  H01L33/56

Abstract: A display device includes a light emitting element and a first optical adjustment member located over the light emitting element and overlapping the light emitting element. An area of an upper surface of the first optical adjustment member is larger than an area of a lower surface of the first optical adjustment member. The display device further includes a second optical adjustment member in contact with a side surface of the first optical adjustment member. A refractive index of the second optical member is smaller than a refractive index of the first optical adjustment member.

公开(公告)号：US20250110367A1

公开(公告)日：2025-04-03

申请号：US18898013

申请日：2024-09-26

Applicant: Japan Display Inc.

Inventor： Yoshinori TANAKA ,  Keita ONO ,  Keiji TAGO

IPC: G02F1/1335 ,  G02F1/1333 ,  G02F1/1334 ,  G02F1/13357

Abstract: According to one embodiment, a display device includes a display panel including a first end portion and a second end portion located on a side opposite to the first end portion, a first light source emitting light to the first end portion, and a first reflective member. The display panel includes an array substrate, a counter-substrate opposed to the array substrate, and a liquid crystal layer provided between the array substrate and the counter-substrate. The array substrate has a first end face which is located in the first end portion and on which the first reflective member is provided.

公开(公告)号：US20240168335A1

公开(公告)日：2024-05-23

申请号：US18502178

申请日：2023-11-06

Applicant: Japan Display Inc.

Inventor： Akihiro HANADA ,  Takuo KAITOH ,  Ryo ONODERA ,  Tomoyuki ITO ,  Yoshinori TANAKA

IPC: G02F1/13357 ,  G02F1/1334 ,  H01L27/12

CPC classification number: G02F1/133615 ,  G02F1/1334 ,  H01L27/1225

Abstract: A display device includes a first nitride insulating film arranged on a first substrate, a gate electrode arranged along a first direction on the first nitride insulating film, a second nitride insulating film arranged on the gate electrode, a first oxide insulating film arranged on the second nitride insulating film, and an oxide semiconductor layer arranged on the first oxide insulating film, wherein the gate electrode has a first titanium layer, an aluminum layer, and a second titanium layer stacked in order from the first nitride insulating film side, and a thickness of the second titanium layer is greater than a thickness of the first titanium layer.

公开(公告)号：US20240160069A1

公开(公告)日：2024-05-16

申请号：US18509920

申请日：2023-11-15

Applicant: Japan Display Inc.

Inventor： Akihiro HANADA ,  Takuo KAITOH ,  Tomoyuki ITO ,  Yoshinori TANAKA

IPC: G02F1/1362 ,  G02F1/1333 ,  G02F1/13357

CPC classification number: G02F1/136286 ,  G02F1/133365 ,  G02F1/133615

Abstract: A display device includes a wiring region including a gate wiring, a source wiring intersecting the gate wiring, and a first insulating layer between the gate wiring and the source wiring and an opening region including a pixel electrode on the first insulating layer and adjacent to the wiring region. The first insulating layer includes a first oxide insulating layer and a first nitride insulating layer, the first oxide insulating layer is disposed over the wiring region and the opening region, the first nitride insulating layer is disposed in the wiring region and includes a first opening overlapping the opening region, and the pixel electrode overlaps the first opening.

公开(公告)号：US20240142817A1

公开(公告)日：2024-05-02

申请号：US18490253

申请日：2023-10-19

Applicant: Japan Display Inc.

Inventor： Yoshinori TANAKA ,  Keita ONO ,  Keiji TAGO

IPC: G02F1/1335 ,  F21V8/00 ,  G02F1/13357

CPC classification number: G02F1/133524 ,  G02B6/0076 ,  G02F1/133615

Abstract: Used is a display device including: a first substrate having a first front surface and a first back surface located on an opposite side of the first front surface; a second substrate having a second back surface opposing the first front surface and a second front surface located on an opposite side of the second back surface; a liquid crystal layer arranged between the first front surface of the first substrate and the second back surface of the second substrate; a first light guide plate adhesively fixed onto the second front surface of the second substrate via a first adhesive layer; and a light source unit arranged at a position opposing a first side surface of the first light guide plate, in which refractive index of the first light guide plate is lower than refractive index of the first adhesive layer.

公开(公告)号：US20250164841A1

公开(公告)日：2025-05-22

申请号：US18947096

申请日：2024-11-14

Applicant: Japan Display Inc. ,  OSAKA UNIVERSITY

Inventor： Junji KOBASHI ,  Shinichiro OKA ,  Yoshinori TANAKA ,  Hiroyuki YOSHIDA

IPC: G02F1/1347 ,  G02F1/1335

Abstract: According to one embodiment, a liquid crystal optical element includes a transparent substrate, a liquid crystal layer provided above the transparent substrate, including a cholesteric liquid crystal, and configured to reflect first circularly polarized light having a same direction as a twist direction of the cholesteric liquid crystal, and a polarization control layer provided on the liquid crystal layer, and configured to control a polarization state of second circularly polarized light having a direction opposite to the first circularly polarized light, totally reflect the second circularly polarized light which passed through the liquid crystal layer and emit the light to the liquid crystal layer as the second circularly polarized light.