公开(公告)号：US11181766B2

公开(公告)日：2021-11-23

申请号：US16783379

申请日：2020-02-06

Applicant: Japan Display Inc.

Inventor： Kentaro Okuyama ,  Akira Sakaigawa

IPC: G02F1/1334 ,  G02F1/13357 ,  G02F1/1335 ,  G02F1/13363

Abstract: A display device is provided and includes a display panel including a first substrate, a lower electrode on the first substrate, a second substrate, an upper electrode on the second substrate, and a light modulation layer including liquid crystalline polymers with a striped structure and liquid crystal molecules, the light modulation layer being disposed between the first and second substrates; a light source unit disposed at a side of the display panel; and a light guided structure disposed between the display panel and the light source unit so that the light guided structure guides the incident light from the light source unit into the side of the display panel.

公开(公告)号：US11119374B2

公开(公告)日：2021-09-14

申请号：US16808532

申请日：2020-03-04

Applicant: Japan Display Inc.

Inventor： Kojiro Ikeda ,  Kentaro Okuyama ,  Tenfu Nakamura

IPC: G02F1/1333 ,  G02F1/1362 ,  G09G3/36

Abstract: According to one embodiment, a display device includes a liquid crystal layer between a first substrate and a second substrate. The first substrate includes a wiring line and a pixel electrode. The liquid crystal layer contains a stripe-shaped polymer extending in a first direction and a liquid crystal molecule. The liquid crystal layer contains a first polymer in an area overlapping the wiring line and a second polymer in an area overlapping the pixel electrode. The first polymer includes a first portion extending in a direction different from the first direction. The second polymer includes a second portion extending in a direction different from the first direction. A density of the first portion is higher than a density of the second portion.

公开(公告)号：US11073652B2

公开(公告)日：2021-07-27

申请号：US17147529

申请日：2021-01-13

Applicant: Japan Display Inc.

Inventor： Yudai Numata ,  Kentaro Okuyama

IPC: F21V8/00 ,  G02F1/1339 ,  G02F1/1334

Abstract: According to one embodiment, a display device includes a first transparent substrate, a second transparent substrate, a liquid crystal layer, light-emitting elements disposed in a first direction, a third transparent substrate including a main surface and a side surface opposed to the light-emitting elements, and a transparent layer disposed on the main surface and having a lower refractive index than the third transparent substrate. The third transparent substrate is bonded to the first transparent substrate or the second transparent substrate with the transparent layer sandwiched in between. The transparent layer includes strip portions disposed in the first direction and extended along a second direction.

公开(公告)号：US11035995B2

公开(公告)日：2021-06-15

申请号：US16357518

申请日：2019-03-19

Applicant: Japan Display Inc.

Inventor： Kentaro Okuyama ,  Yudai Numata

IPC: F21V8/00 ,  G02F1/1334

Abstract: According to one embodiment, a display device includes a first substrate, a second substrate opposed to the first substrate and including an end portion, a liquid crystal layer provided between the first substrate and the second substrate and including a polymer in a shape of a streak and a liquid crystal molecule, a light-emitting element having a light emitting portion opposed to the end portion, and a light guide located between the end portion and the light emitting portion.

公开(公告)号：US10714026B2

公开(公告)日：2020-07-14

申请号：US16218555

申请日：2018-12-13

Applicant: Japan Display Inc.

Inventor： Tenfu Nakamura ,  Kentaro Okuyama ,  Tae Kurokawa

IPC: G09G3/34 ,  G02F1/1334 ,  G02F1/13357

Abstract: According to one embodiment, a display device including a plurality of light sources of different luminous colors, a first substrate, a second substrate opposed to the first substrate, a liquid crystal layer interposed between the first and second substrates, to which light from the light sources enters, a display area on which an image is displayed, and a drive circuit configured to control quantity of light from each of the light sources on the basis of an analyzation result of an image signal used to display the image.

公开(公告)号：US10545377B2

公开(公告)日：2020-01-28

申请号：US15664780

申请日：2017-07-31

Applicant: Japan Display Inc.

Inventor： Manabu Mizuno ,  Kentaro Okuyama ,  Hiroshi Inamura ,  Hiroki Sugiyama

IPC: G02F1/1335 ,  F21V8/00 ,  G02F1/1334 ,  G02F1/137 ,  G02F1/1339 ,  G02F1/1341

Abstract: According to an aspect, a display apparatus includes: a first light-transmissive substrate; a second light-transmissive substrate arranged to face the first light-transmissive substrate; a liquid crystal layer including polymer dispersed liquid crystals sealed between the first light-transmissive substrate and the second light-transmissive substrate; at least one light-emitting device arranged to face at least one of a side surface of the first light-transmissive substrate or a side surface of the second light-transmissive substrate; and at least one reflector arranged on at least one of a side surface of the first light-transmissive substrate or a side surface of the second light-transmissive substrate, the side surface of the first or second light-transmissive substrate being on an opposite side of the side surface of the first or second light-transmissive substrate to which the at least one light-emitting device faces, and configured to reflect light at the side surface on the opposite side.

公开(公告)号：US10416493B2

公开(公告)日：2019-09-17

申请号：US15441508

申请日：2017-02-24

Applicant: Japan Display Inc.

Inventor： Manabu Mizuno ,  Kentaro Okuyama ,  Hiroshi Inamura ,  Hideki Kaneko ,  Hiroki Sugiyama

IPC: G02F1/137 ,  G02F1/1334 ,  G02F1/1335 ,  G02F1/1362 ,  G02F1/1368

Abstract: A display device according to one aspect of the present invention includes a first substrate including at least a pixel electrode and a pixel switching circuit portion, a second substrate arranged to face the first substrate, a liquid crystal layer arranged between the first substrate and the second substrate, and configured to modulate light, the light being propagated while reflected between the first substrate and the second substrate, and a reflecting layer arranged over a liquid crystal layer side of the pixel switching circuit portion, partially superimposed with the pixel switching circuit portion, and electrically coupled with the pixel electrode, the reflecting layer having higher reflectance of the light than any members included in the pixel switching circuit portion.

公开(公告)号：US10209531B2

公开(公告)日：2019-02-19

申请号：US15416516

申请日：2017-01-26

Applicant: Japan Display Inc.

Inventor： Kentaro Okuyama

IPC: G02F1/13363 ,  G02B27/48 ,  G02F1/133 ,  G02F1/1334 ,  G02F1/1335 ,  G02F1/1337 ,  G02F1/137 ,  G02F1/1347

Abstract: According to one embodiment, an optical device includes a first light-modulating element transmitting or scattering light, and a second light-modulating element transmitting or scattering the light passing through the first light-modulating element, a driving module alternately performing a first mode of making the first light-modulating element scatter the light and making the second light-modulating element transmit the light, and a second mode of making the first light-modulating element transmit the light and making the second light-modulating element scatter the light.

公开(公告)号：US20190004377A1

公开(公告)日：2019-01-03

申请号：US16018841

申请日：2018-06-26

Applicant: Japan Display Inc.

Inventor： Kentaro Okuyama ,  Yudai Numata

IPC: G02F1/1337 ,  G02F1/1334 ,  G02F1/1333 ,  G02F1/1362 ,  G02F1/1368 ,  G02F1/1335 ,  G09G3/36

Abstract: According to one embodiment, a display device includes a first substrate including a scanning line and a pixel electrode, a second substrate opposed to the first substrate, and a liquid crystal layer held between the first substrate and the second substrate and including streaky polymers and liquid crystal molecules, wherein the liquid crystal layer includes a first area overlapping the scanning line and a second area overlapping the pixel electrode, and the polymers of the first area are denser than the polymers of the second area.