公开(公告)号：US11378836B2

公开(公告)日：2022-07-05

申请号：US17092808

申请日：2020-11-09

Applicant: Japan Display Inc.

Inventor： Tae Kurokawa ,  Kentaro Okuyama

IPC: G02F1/1335 ,  G02F1/1334 ,  G02F1/13357 ,  G02F1/1333 ,  G02F1/1337 ,  G02F1/1343 ,  G02F1/1345

Abstract: According to one embodiment, a display device includes a first substrate including a light-shielding layer and a conductive line having a first side surface and a second side surface on a side opposite to the first side surface, a second substrate opposed to the first substrate, a polymer dispersed liquid crystal layer held between the first substrate and the second substrate, and including a polymer and liquid crystal molecules, and a light-emitting element opposed to an end portion of at least one of the first substrate and the second substrate, wherein the first side surface is closer to the light-emitting element than the second side surface, and the light-shielding layer covers at least the first side surface of the conductive line.

公开(公告)号：US11209708B2

公开(公告)日：2021-12-28

申请号：US17212299

申请日：2021-03-25

Applicant: Japan Display Inc.

Inventor： Kojiro Ikeda ,  Tenfu Nakamura ,  Kentaro Okuyama

IPC: G02F1/1368 ,  G02F1/1362

Abstract: According to one embodiment, a display device includes a display area including a liquid crystal layer disposed in a display area, the liquid crystal layer including a polymer and a liquid crystal molecule, wherein when a direction of light incident on the display area from a light source element is defined as an incident direction and a direction in which pixels are selected sequentially is defined as a scan direction, the incident direction is opposite to the scan direction, and a direction in which the polymer extends linearly crosses both the incident direction and the scan direction.

公开(公告)号：US11022832B2

公开(公告)日：2021-06-01

申请号：US16380289

申请日：2019-04-10

Applicant: Japan Display Inc.

Inventor： Yudai Numata ,  Kentaro Okuyama

IPC: G02F1/1334 ,  F21V8/00 ,  G02F1/1335 ,  G02F1/13357 ,  G02F1/1362 ,  G02F1/1368 ,  G02F1/1339

Abstract: According to one embodiment, a display device includes a first light guide including a first main surface, a second main surface, a first end portion opposed to light-emitting elements, and a second end portion, a first layer which is arranged to be in contact with the first main surface, and a second layer which is arranged to be in contact with the first main surface, and is located between the first layer and the second end portion, wherein the first light guide has a first refractive index, the first layer has a second refractive index lower than the first refractive index, the second layer has a third refractive index higher than the second refractive index, and the first layer is located at a position closer to the first end portion than the second layer.

公开(公告)号：US20210096405A1

公开(公告)日：2021-04-01

申请号：US17120478

申请日：2020-12-14

Applicant: Japan Display Inc.

Inventor： Kentaro Okuyama

IPC: G02F1/1334 ,  G02F1/13357 ,  G09G3/34 ,  G09G3/36 ,  G06F3/14

Abstract: According to one embodiment, a display device includes a first display panel, and a polarizer opposed to the first display panel and having a transmission axis for transmitting linearly polarized light. The first display panel includes a first substrate, a second substrate opposed to the first substrate, and a first liquid crystal layer held between the first substrate and the second substrate and including streak-like polymers and liquid crystal molecules. An extension direction of the polymers is substantially orthogonal to the transmission axis.

公开(公告)号：US10908446B2

公开(公告)日：2021-02-02

申请号：US16360651

申请日：2019-03-21

Applicant: Japan Display Inc.

Inventor： Kentaro Okuyama

IPC: G02F1/1334 ,  G02F1/13357 ,  G09G3/34 ,  G09G3/36 ,  G06F3/14

Abstract: According to one embodiment, a display device includes a first display panel, and a polarizer opposed to the first display panel and having a transmission axis for transmitting linearly polarized light. The first display panel includes a first substrate, a second substrate opposed to the first substrate, and a first liquid crystal layer held between the first substrate and the second substrate and including streak-like polymers and liquid crystal molecules. An extension direction of the polymers is substantially orthogonal to the transmission axis.

公开(公告)号：US20190324305A1

公开(公告)日：2019-10-24

申请号：US16380289

申请日：2019-04-10

Applicant: Japan Display Inc.

Inventor： Yudai NUMATA ,  Kentaro Okuyama

IPC: G02F1/1334 ,  F21V8/00 ,  G02F1/1335 ,  G02F1/1362 ,  G02F1/13357

Abstract: According to one embodiment, a display device includes a first light guide including a first main surface, a second main surface, a first end portion opposed to light-emitting elements, and a second end portion, a first layer which is arranged to be in contact with the first main surface, and a second layer which is arranged to be in contact with the first main surface, and is located between the first layer and the second end portion, wherein the first light guide has a first refractive index, the first layer has a second refractive index lower than the first refractive index, the second layer has a third refractive index higher than the second refractive index, and the first layer is located at a position closer to the first end portion than the second layer.

公开(公告)号：US10429694B2

公开(公告)日：2019-10-01

申请号：US16144852

申请日：2018-09-27

Applicant: Japan Display Inc.

Inventor： Tatsuya Yata ,  Kentaro Okuyama

IPC: G02F1/1334 ,  G02F1/1335

Abstract: According to one embodiment, a display device comprises first and second substrate having light transmissivity and opposing each other, a light-modulating layer arranged between the first substrate and the second substrate, a light source unit which illuminates the light-modulating layer from an outer side of a position which opposes a display area, along a normal direction, first to third color filters of different colors arranged on the first substrate, and first to third electrodes which oppose the first to third color filters, respectively, the light-modulating layer being able to change light dispersibility of each of regions which oppose the first to third color filters according to the electric field produced by each respective one of the first to third electrodes.

公开(公告)号：US20180292690A1

公开(公告)日：2018-10-11

申请号：US15943890

申请日：2018-04-03

Applicant: Japan Display Inc.

Inventor： Tae Kurokawa ,  Kentaro Okuyama ,  Takayuki Imai

IPC: G02F1/1343 ,  G02F1/1334 ,  G09G3/36

CPC classification number: G02F1/1343 ,  G02F1/1334 ,  G02F1/133615 ,  G02F1/133621 ,  G02F2001/133622 ,  G09G3/3413 ,  G09G3/342 ,  G09G2310/0235 ,  G09G2310/024

Abstract: According to an aspect, a display device includes: a first translucent substrate; a second translucent substrate facing the first translucent substrate; a liquid crystal layer including polymer dispersed liquid crystal sealed between the first translucent substrate and the second translucent substrate; at least one light emitter facing at least one of a side surface of the first translucent substrate or a side surface of the second translucent substrate; and a display controller that controls transmittance of light passing through the first translucent substrate and the second translucent substrate. A non-light-emitting period in which the at least one light emitter does not emit light is provided between a plurality of light-emitting periods in which the at least one light emitter emits light.

公开(公告)号：US20160070047A1

公开(公告)日：2016-03-10

申请号：US14814976

申请日：2015-07-31

Applicant: Japan Display Inc.

Inventor： Kentaro Okuyama ,  Akira Sakaigawa

IPC: F21V8/00 ,  G02F1/1335 ,  G02F1/1334

CPC classification number: G02B6/005 ,  G02F1/1326 ,  G02F1/1334 ,  G02F1/133615 ,  G02F1/133617 ,  G02F2001/133601 ,  G02F2001/133614 ,  G09G3/342 ,  G09G3/3426 ,  G09G3/3607 ,  G09G2320/0666 ,  G09G2360/16

Abstract: A display device includes a light source device including a light emission section which emits incident light, a light conversion section which receives the incident light and which converts the intensity of the incident light, and a white light conversion section which converts the light with the converted intensity to white light. With the light source device light emitted from the light conversion section is converted to white light by the white light conversion section. As a result, white light in which chromaticity deviation is reduced is used as a light source. With a display device in which white light is used as backlight light, image quality degradation is reduced.

Abstract translation: 显示装置包括：光源装置，其包括发射入射光的发光部，接收入射光并转换入射光强度的光转换部;以及白光转换部， 强度到白光。 通过白光转换部将光转换部发出的光转换为白光。 结果，将色度偏差减小的白光用作光源。 使用白光作为背光灯的显示装置，降低了图像质量下降。

公开(公告)号：US12292639B2

公开(公告)日：2025-05-06

申请号：US18670195

申请日：2024-05-21

Applicant: Japan Display Inc.

Inventor： Kasumi Hase ,  Koichi Igeta ,  Kentaro Okuyama

IPC: G02F1/1334 ,  G02F1/13357 ,  G02F1/1343 ,  G02F1/137

Abstract: According to an aspect, a display device includes: a first substrate; a second substrate facing the first substrate; a liquid crystal layer disposed between the first substrate and the second substrate; a light source disposed so that light is incident on a side surface of the first substrate or a side surface of the second substrate; a first electrode provided on the first substrate; and second electrodes provided on the second substrate. The liquid crystal layer includes polymer-dispersed liquid crystals including a polymer network formed in a mesh shape and liquid crystal molecules held in a dispersed manner in gaps of the polymer network. A plurality of first slits of the second electrodes that are provided for each pixel are arranged at predetermined intervals in a first direction, and the first slits extend in a second direction intersecting the first direction.