公开(公告)号：US11315979B2

公开(公告)日：2022-04-26

申请号：US17018437

申请日：2020-09-11

Applicant: Japan Display Inc.

Inventor： Osamu Itou

IPC: H01L27/15 ,  G02B5/02

Abstract: According to an aspect, a display device includes: a substrate; a plurality of pixels; a first anisotropic diffusion layer and a second anisotropic diffusion layer that are layered; and a plurality of light emitting elements interposed between the first anisotropic diffusion layer and the substrate. The first anisotropic diffusion layer and the second anisotropic diffusion layer each include a high refractive index region and a low refractive index region in a mixed manner. An absolute value of a first angle formed by a boundary between the high refractive index region and the low refractive index region of the first anisotropic diffusion layer and a direction perpendicular to the substrate is different from an absolute value of a second angle formed by a boundary between the high refractive index region and the low refractive index region of the second anisotropic diffusion layer and the direction perpendicular to the substrate.

公开(公告)号：US10690972B2

公开(公告)日：2020-06-23

申请号：US15928665

申请日：2018-03-22

Applicant: Japan Display Inc.

Inventor： Osamu Itou ,  Toshimasa Ishigaki

IPC: G02F1/1343 ,  G02F1/1337 ,  G02F1/1362 ,  G02F1/1368 ,  G02F1/137

Abstract: The purpose of the invention is to avoid the domain in high definition liquid crystal display devices. The representative structure is as follows. Scan lines extending in a first direction, video signal lines extending in a second direction, a pixel is formed in an area surrounded by the video signal lines and the scan lines, the pixel includes: a thin film transistor, a flattening film that covers the thin film transistor, a first electrode formed on the flattening film, a second electrode formed over the first electrode via an insulating film, and a contact hole that is formed in the flattening film to connect the first electrode and the thin film transistor; the second electrode is formed in common in plural pixels, and has a slit between the video signal lines; wherein the slit is formed continuously in a plurality of pixels arranged in the second direction.

公开(公告)号：US10409124B2

公开(公告)日：2019-09-10

申请号：US15277220

申请日：2016-09-27

Applicant: Japan Display Inc.

Inventor： Osamu Itou ,  Daisuke Sonoda ,  Masahiro Kosuge

IPC: G02F1/1362 ,  G02F1/1335 ,  G02F1/1343 ,  G02F1/1337 ,  G02F1/1333

Abstract: According to one embodiment, a liquid crystal display device, includes a first substrate including a scanning signal line, a video signal line, a first electrode, a color filter, a common line in contact with the first electrode along the video signal line, an antireflection layer located on the common line, a transparent layer located on the antireflection layer, and a second electrode, a liquid crystal layer located on the first substrate, and a second substrate located on the liquid crystal layer, the transparent layer having a thickness of 10 nm or more and 40 nm or less.

公开(公告)号：US20180314118A1

公开(公告)日：2018-11-01

申请号：US15928665

申请日：2018-03-22

Applicant: Japan Display Inc.

Inventor： Osamu Itou ,  Toshimasa Ishigaki

IPC: G02F1/1343 ,  G02F1/1362 ,  G02F1/1368 ,  G02F1/137 ,  G02F1/1337

CPC classification number: G02F1/134363 ,  G02F1/133707 ,  G02F1/133723 ,  G02F1/13439 ,  G02F1/136213 ,  G02F1/136227 ,  G02F1/136286 ,  G02F1/1368 ,  G02F1/137 ,  G02F2001/134318 ,  G02F2001/134372 ,  G02F2001/136222 ,  G02F2001/13685 ,  G02F2001/13706 ,  G02F2201/121 ,  G02F2201/122 ,  G02F2201/123 ,  G02F2202/104

Abstract: The purpose of the invention is to avoid the domain in high definition liquid crystal display devices. The representative structure is as follows. Scan lines extending in a first direction, video signal lines extending in a second direction, a pixel is formed in an area surrounded by the video signal lines and the scan lines, the pixel includes: a thin film transistor, a flattening film that covers the thin film transistor, a first electrode formed on the flattening film, a second electrode formed over the first electrode via an insulating film, and a contact hole that is formed in the flattening film to connect the first electrode and the thin film transistor; the second electrode is formed in common in plural pixels, and has a slit between the video signal lines; wherein the slit is formed continuously in a plurality of pixels arranged in the second direction.

公开(公告)号：US10054832B2

公开(公告)日：2018-08-21

申请号：US14923915

申请日：2015-10-27

Applicant: Japan Display Inc.

Inventor： Osamu Itou ,  Kenji Nakao ,  Toshimasa Ishigaki ,  Masahiro Kosuge

IPC: G02F1/1362 ,  G02F1/1343

CPC classification number: G02F1/136227 ,  G02F1/134363 ,  G02F2001/134372 ,  G02F2001/136222

Abstract: Disclosed is a liquid crystal display device including an active element substrate having an active element; a first layer provided on the active element and having a first hole formed therein, the first layer being one of a first insulating layer and a color filter; a second layer provided on the first layer and having a second hole formed therein, the second layer being the other of the first insulating layer and the color filter; a common electrode provided on the second layer; a second insulating layer having a plate-like portion provided on the common electrode and a first contact portion protruded downward; and a pixel electrode having a second contact portion protruded downward. The first contact portion is provided inside the second hole, and the second contact portion is provided inside the first hole and inside the second hole and electrically connected to the active element.

公开(公告)号：US09958719B2

公开(公告)日：2018-05-01

申请号：US15397401

申请日：2017-01-03

Applicant: Japan Display Inc.

Inventor： Yuki Matsuura ,  Osamu Itou

IPC: G02F1/1368 ,  G02F1/1333 ,  G02F1/1343 ,  G02F1/1362 ,  H01L27/12 ,  G02F1/1339

CPC classification number: G02F1/133345 ,  G02F1/13394 ,  G02F1/134309 ,  G02F1/136227 ,  G02F1/1368 ,  G02F2001/136222 ,  G02F2201/121 ,  G02F2201/123 ,  G02F2203/055 ,  H01L27/1218 ,  H01L27/1248

Abstract: According to one embodiment, a display device includes an insulating substrate, a first insulating film, a second insulating film, a third insulating film, a fourth insulating film, a fifth insulating film, a sixth insulating film, a color filter layer, a semiconductor layer disposed between the second insulating film and the third insulating film, and a gate electrode disposed between the third insulating film and the fourth insulating film, wherein the first, fourth, and sixth insulating films are formed of a silicon nitride, and the second, third, and fifth insulating films are formed of a silicon oxide.

公开(公告)号：US09740062B2

公开(公告)日：2017-08-22

申请号：US14723577

申请日：2015-05-28

Applicant: Japan Display Inc.

Inventor： Hidetatsu Nakamura ,  Osamu Itou ,  Takeshi Sakai

IPC: G02F1/1343 ,  G02F1/1362

CPC classification number: G02F1/134363 ,  G02F1/136286 ,  G02F2001/134372

Abstract: A pixel electrode is configured of one comb tooth portion and a contact portion whose width is widened from the end portion of the comb tooth portion in a first direction that is the extending direction of a scanning line. The width of the contact portion is not expanded in a direction opposite to the first direction, and the production of a domain is prevented. A picture signal line is bent in the direction in which the width of the contact portion of the pixel electrode is widened, so that the comb tooth portion of the pixel electrode can be disposed in the center between the picture signal lines, and the width of the contact portion can be formed in a sufficient width in the direction in which the picture signal line is bent. Thus, the contact margin of the pixel electrode can be provided.

公开(公告)号：US09488884B2

公开(公告)日：2016-11-08

申请号：US13957483

申请日：2013-08-02

Applicant: Japan Display Inc.

Inventor： Takato Hiratsuka ,  Osamu Itou ,  Miharu Otani ,  Toshimasa Ishigaki ,  Daisuke Sonoda

IPC: G02F1/1339 ,  G02F1/1343

CPC classification number: G02F1/13439 ,  G02F1/13394 ,  G02F1/134363

Abstract: In a liquid crystal display device having wall structures, the generation of low-temperature shock bubbles is suppressed. Also, electrodes and the like within substrates are prevented from being damaged during manufacturing. The liquid crystal display device includes a first substrate, a second substrate that is disposed to face the first substrate, a liquid crystal layer that is disposed between the first substrate and the second substrate, wall structures that are formed on the first substrate, pixel electrodes that are disposed on at least side wall of the wall structures, a common electrode that is formed on the first substrate, and a plurality of pixels including the pixel electrodes and the common electrode, in which higher portions are partially disposed on a surface of the second substrate, and the higher portions come into contact with the wall structures to bring the first substrate into contact with the second substrate.

Abstract translation: 在具有壁结构的液晶显示装置中，抑制了低温冲击气泡的产生。 而且，在制造过程中，防止了基片内的电极等被损坏。 液晶显示装置包括第一基板，与第一基板相对配置的第二基板，设置在第一基板和第二基板之间的液晶层，形成在第一基板上的壁结构，像素电极 设置在所述壁结构的至少侧壁上，形成在所述第一基板上的公共电极以及包括所述像素电极和所述公共电极的多个像素，所述多个像素部分地设置在所述第一基板的表面上 第二基板，并且较高部分与壁结构接触以使第一基板与第二基板接触。

公开(公告)号：US20160170259A1

公开(公告)日：2016-06-16

申请号：US14967868

申请日：2015-12-14

Applicant: Japan Display Inc.

Inventor： Osamu Itou ,  Kenji Nakao ,  Toshimasa Ishigaki ,  Masahiro Kosuge

IPC: G02F1/1335 ,  G02F1/1333

CPC classification number: G02F1/133502 ,  G02F1/136286

Abstract: The elution of a color filter to a liquid crystal layer is reduced. A liquid crystal display device includes an active device substrate, a liquid crystal layer provided on the active device substrate, and a counter substrate provided on the liquid crystal layer. The active device substrate includes an active device, a common electrode, a common interconnection electrically connected to the common electrode, a reflection reduction film provided on the common interconnection, a first insulating layer provided on the reflection reduction film, and a pixel electrode having a flat portion provided on the first insulating layer and a first projecting portion protruding downwardly. The first the projecting portion is electrically connected to the active device.

Abstract translation: 滤色器对液晶层的洗脱减少。 液晶显示装置包括有源器件衬底，设置在有源器件衬底上的液晶层和设置在液晶层上的对置衬底。 有源器件衬底包括有源器件，公共电极，与公共电极电连接的公共互连，设置在公共互连上的反射减薄膜，设置在反射还原膜上的第一绝缘层，以及具有 设置在第一绝缘层上的平坦部分和向下突出的第一突出部分。 第一突出部分电连接到有源装置。

公开(公告)号：US12249676B2

公开(公告)日：2025-03-11

申请号：US17316927

申请日：2021-05-11

Applicant: Japan Display Inc.

Inventor： Osamu Itou ,  Masanobu Ikeda ,  Masataka Ikeda

IPC: H01L33/00 ,  H01L25/16 ,  H01L33/44 ,  H01L33/46 ,  H01L33/54 ,  H01L33/60 ,  H01L33/62

Abstract: A display device includes a substrate, a plurality of pixels, a light emitting element, and an inorganic insulating layer. The pixels are provided to the substrate. The light emitting element is provided to each of the pixels. The inorganic insulating layer has translucency and covers at least part of the light emitting element. The inorganic insulating layer includes a side part and an extending part. The side part is provided to the side surface of the light emitting element. The extending part is provided at a side on the lower end of the side part and extending toward the outer side of the light emitting element than the side part in planar view seen from the normal direction of the substrate.