公开(公告)号：US20220206347A1

公开(公告)日：2022-06-30

申请号：US17698158

申请日：2022-03-18

Applicant: Japan Display Inc.

Inventor： Masashi MITSUI ,  Takeo KOITO ,  Tae KUROKAWA

IPC: G02F1/1343 ,  G02F1/1347 ,  G02F1/1335

Abstract: According to one embodiment, an optical control device includes a first liquid crystal cell and a second liquid crystal cell. The second liquid crystal cell is stacked on the first liquid crystal cell. The first liquid crystal cell has a function of modulating and converting a first polarization component of incident light into a second polarization component, and hardly modulating and converting a third polarization component of incident light into a fourth polarization component. The second liquid crystal cell has a function of hardly modulating the second polarization component transmitted through the first liquid crystal cell, and modulating the fourth polarization component transmitted through the first liquid crystal cell.

公开(公告)号：US20190079323A1

公开(公告)日：2019-03-14

申请号：US16129331

申请日：2018-09-12

Applicant: Japan Display Inc.

Inventor： Tae KUROKAWA ,  Kentaro OKUYAMA

IPC: G02F1/1334 ,  G02F1/1335 ,  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：US20240102633A1

公开(公告)日：2024-03-28

申请号：US18523430

申请日：2023-11-29

Applicant: Japan Display Inc.

Inventor： Kojiro IKEDA ,  Takeo KOITO ,  Tae KUROKAWA

IPC: F21V9/40 ,  G02F1/1343 ,  G02F1/1347

CPC classification number: F21V9/40 ,  G02F1/134309 ,  G02F1/13439 ,  G02F1/1347

Abstract: A lighting device includes a light source having a first optical element and a second optical element emitting directional light, and one liquid crystal optical element transmitting or diffusing the light emitted from the light source. The first and the second optical elements include a first and a second light exit surfaces, and the first and the second light exit surfaces are arranged to direct in different directions. The liquid crystal optical element has a second electrode group arranged adjacent to a first electrode group. The first electrode group has a first transparent electrode and a second transparent electrode. The second electrode group has a third transparent electrode and a fourth transparent electrode. A pitch at which the first transparent electrodes and the second transparent electrodes are alternately arranged is different from a pitch at which the third transparent electrodes and the fourth transparent electrodes are alternately arranged.

公开(公告)号：US20240019107A1

公开(公告)日：2024-01-18

申请号：US18373462

申请日：2023-09-27

Applicant: Japan Display Inc.

Inventor： Takeo KOITO ,  Tae KUROKAWA ,  Kojiro IKEDA

IPC: F21V14/00 ,  G02F1/1343 ,  G02F1/1347

CPC classification number: F21V14/003 ,  G02F1/134309 ,  G02F1/1347

Abstract: Disclosed is an illumination device including a light source, a first liquid crystal cell over the light source, and a second liquid crystal cell over the first liquid crystal cell. Each of the first liquid crystal cell and the second liquid crystal cell includes a first substrate, a plurality of first lower electrodes and a plurality of second lower electrodes driven independently, a first liquid crystal layer, and a second substrate. The first substrate has a first region and a second region. The plurality of first lower electrodes is located over the first region and extends in a column direction. The plurality of second lower electrodes is located over the second region and extends in the column direction. The first liquid crystal layer is located over the plurality of first lower electrodes and the plurality of second lower electrodes. The second substrate is located over the first liquid crystal layer.

公开(公告)号：US20240004239A1

公开(公告)日：2024-01-04

申请号：US18369005

申请日：2023-09-15

Applicant: Japan Display Inc.

Inventor： Kojiro IKEDA ,  Takeo KOITO ,  Tae KUROKAWA

IPC: G02F1/1337 ,  G02F1/1343

CPC classification number: G02F1/133753 ,  G02F1/134309

Abstract: A liquid crystal light control device includes a first liquid crystal cell, a second liquid crystal cell overlapping the first liquid crystal cell, a third liquid crystal cell overlapping the second liquid crystal cell, and a fourth liquid crystal cell overlapping the third liquid crystal cell. Each of the first, second, third, and the fourth liquid crystal cells includes, a first substrate including a first alignment film, a second substrate including an electrode having a strip pattern and a second alignment film, and a liquid crystal layer between the first substrate and the second substrate. An alignment direction of the first alignment film and an alignment direction of the second alignment film are aligned to intersect each other. A longitudinal direction of the strip pattern of the electrode having the strip pattern is arranged to intersect an alignment direction of the second alignment film.

公开(公告)号：US20230221595A1

公开(公告)日：2023-07-13

申请号：US18187321

申请日：2023-03-21

Applicant: Japan Display Inc.

Inventor： Tae KUROKAWA ,  Kentaro OKUYAMA

IPC: G02F1/1362

CPC classification number: G02F1/136209 ,  G02F1/136286

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：US20220373856A1

公开(公告)日：2022-11-24

申请号：US17881623

申请日：2022-08-05

Applicant: Japan Display Inc.

Inventor： Tae KUROKAWA ,  Takeo KOITO ,  Masashi MITSUI

IPC: G02F1/29 ,  G02F1/1343 ,  G02F1/1337

Abstract: According to one embodiment, a light control device includes a first liquid crystal cell including a first liquid crystal layer, a second liquid crystal cell including a second liquid crystal layer, and a polarization conversion element. The first liquid crystal layer and the second liquid crystal layer each includes a first region which scatters a first polarized component and transmits a second polarized component and a second region which transmits the first polarized component and scatters the second polarized component. The polarization conversion element overlaps the first region and the second region, converts the first polarized component into the second polarized component, and converts the second polarized component into the first polarized component.

公开(公告)号：US20220365402A1

公开(公告)日：2022-11-17

申请号：US17876549

申请日：2022-07-29

Applicant: Japan Display Inc.

Inventor： Tae KUROKAWA ,  Takeo KOITO ,  Masashi MITSUI

IPC: G02F1/29 ,  G02F1/1335 ,  G02F1/1343 ,  G02F1/137 ,  G02F1/1337

Abstract: According to one embodiment, a light control device comprises a first liquid crystal cell includes a first liquid crystal layer, a second liquid crystal cell includes a second liquid crystal layer, and a third liquid crystal cell includes a third liquid crystal layer. The first liquid crystal layer and the third liquid crystal layer each have a first region that scatters a first polarization component and that transmits a second polarization component. The second liquid crystal layer has a third region that overlaps the first region and converts the second polarization component into the first polarization component.

公开(公告)号：US20220299826A1

公开(公告)日：2022-09-22

申请号：US17805330

申请日：2022-06-03

Applicant: Japan Display Inc.

Inventor： Tae KUROKAWA ,  Takeo KOITO ,  Masashi MITSUI

IPC: G02F1/1343 ,  G02F1/1347 ,  G02F1/1333

Abstract: According to one embodiment, a light control device includes a first substrate including first to third electrodes formed in an annular shape and a fourth electrode, a second substrate, and a liquid crystal layer held between the first substrate and the second substrate. The first electrode and the second electrode are arranged in a first direction. The first electrode and the third electrode are arranged in a direction different from the first direction. The fourth electrode is adjacent to the first to third electrodes.

公开(公告)号：US20220291542A1

公开(公告)日：2022-09-15

申请号：US17830563

申请日：2022-06-02

Applicant: Japan Display Inc.

Inventor： Tae KUROKAWA ,  Kentaro OKUYAMA

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

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.