公开(公告)号：US20240361649A1

公开(公告)日：2024-10-31

申请号：US18768513

申请日：2024-07-10

Applicant: Japan Display Inc.

Inventor： Takeo KOITO ,  Kojiro IKEDA ,  Yoshikatsu IMAZEKI

IPC: G02F1/1345 ,  G02F1/1333 ,  G02F1/1343 ,  G02F1/1347

CPC classification number: G02F1/13452 ,  G02F1/133345 ,  G02F1/13439 ,  G02F1/13458 ,  G02F1/1347

Abstract: An optical element includes a plurality of stacked liquid crystal cells. The plurality of stacked liquid crystal cells each includes a first substrate on which a first transparent electrode, a second transparent electrode, a first pad, a second pad, and a third pad are arranged, a second substrate on which a third transparent electrode and a fourth transparent electrode are arranged, and a liquid crystal layer between the first substrate and the second substrate. The first pad, the second pad, and the third pad of each of the plurality of stacked liquid crystal cells are electrically connected to a first inter-cell conductive member, a second inter-cell conductive member, and a third inter-cell conductive member, respectively, extending in a stacking direction.

公开(公告)号：US20240337878A1

公开(公告)日：2024-10-10

申请号：US18750455

申请日：2024-06-21

Applicant: JAPAN DISPLAY INC.

Inventor： Kojiro IKEDA ,  Takeo KOITO ,  Koichi NAGAO ,  Shinichiro TANAKA

IPC: G02F1/1337 ,  G02F1/1343 ,  G02F1/1347

CPC classification number: G02F1/1337 ,  G02F1/134309 ,  G02F1/1347 ,  G02F2201/124

Abstract: According to one embodiment, a liquid crystal device includes a first liquid crystal cell and a second liquid crystal cell. The first liquid crystal cell and the second liquid crystal cell each include a first strip electrode, a second strip electrode, a third strip electrode and a fourth strip electrode. The extension direction of each of the first strip electrode and the second strip electrode in the first liquid crystal cell is different from the extension direction of each of the first strip electrode and the second strip electrode in the second liquid crystal cell. The extension direction of each of the first strip electrode and the second strip electrode is orthogonal to the extension direction of each of the third strip electrode and the fourth strip electrode.

公开(公告)号：US20240310679A1

公开(公告)日：2024-09-19

申请号：US18671439

申请日：2024-05-22

Applicant: Japan Display Inc.

Inventor： Kojiro IKEDA ,  Takeo KOITO

IPC: G02F1/1343 ,  G02F1/1347

CPC classification number: G02F1/134381 ,  G02F1/13439 ,  G02F1/1347

Abstract: An optical element includes at least four liquid crystal cells stacked in sequence. Each of the at least four liquid crystal cells includes a first substrate on which a first transparent electrode and a second transparent electrode each extending in a first direction are alternately arranged in a second direction orthogonal to the first direction, a second substrate on which a third transparent electrode and a fourth transparent electrode each extending in the second direction are alternately arranged in the first direction, and a liquid crystal layer between the first substrate and the second substrate.

公开(公告)号：US20240264495A1

公开(公告)日：2024-08-08

申请号：US18637639

申请日：2024-04-17

Applicant: Japan Display Inc.

Inventor： Koichi NAGAO ,  Takeo KOITO

IPC: G02F1/1345 ,  H05K1/18

CPC classification number: G02F1/13458 ,  H05K1/189 ,  H05K2201/10136

Abstract: A light adjustment device includes a panel unit in which a plurality of light adjustment panels are stacked in a first direction, each light adjustment panel including a first substrate and a second substrate, the first substrate including two or more terminal groups; and flexible printed circuits each coupled to one of the terminal groups of one of the light adjustment panels. When the panel unit is viewed in the first direction, a plurality of the terminal groups coupled to the flexible printed circuits are provided at each of an end part of the light adjustment panel in a second direction intersecting the first direction and an end part of the light adjustment panel in a third direction opposite the second direction, and the plurality of flexible printed circuits are not superimposed on each other.

公开(公告)号：US20240118574A1

公开(公告)日：2024-04-11

申请号：US18375062

申请日：2023-09-29

Applicant: Japan Display Inc.

Inventor： Yoshikatsu IMAZEKI ,  Yoshifumi KAMEI ,  Takeo KOITO ,  Kojiro IKEDA

IPC: G02F1/1347 ,  G02F1/1333

CPC classification number: G02F1/1347 ,  G02F1/133308

Abstract: A light adjustment device includes a panel unit including a plurality of light adjustment panels stacked in a first direction, each light adjustment panel including a first substrate and a second substrate, the first substrate including a first terminal, the second substrate overlapping the first substrate and including a second terminal, and a metal film provided at a side part of the panel unit and extending in the first direction.

公开(公告)号：US20240117954A1

公开(公告)日：2024-04-11

申请号：US18378807

申请日：2023-10-11

Applicant: Japan Display Inc.

Inventor： Makoto HASEGAWA ,  Nobuyuki SUZUKI ,  Takeo KOITO

IPC: F21V14/00 ,  F21V7/00 ,  F21V7/06 ,  G02F1/1335 ,  G02F1/1343 ,  G02F1/1347 ,  G02F1/29

CPC classification number: F21V14/003 ,  F21V7/0016 ,  F21V7/06 ,  G02F1/133528 ,  G02F1/134309 ,  G02F1/1347 ,  G02F1/294

Abstract: A lighting device, comprises: a first reflector that includes a first hole where a light source is disposed, a second hole that emits light, and a reflection curved surface that connects the first hole and the second hole to each other, and the first reflector emits light to a first direction; a liquid crystal lens disposed to cover the second hole of the first reflector; and a polygonal pyramid including a bottom surface and a plurality of inclined surfaces, and being disposed so that the plurality of inclined surfaces oppose the liquid crystal lens. The plurality of inclined surfaces are reflection surfaces, and on the reflection surfaces, a traveling path of the light traveling to the first direction changes to a second direction. The liquid crystal lens can configure lenses corresponding to the plurality of inclined surfaces.

公开(公告)号：US20240045276A1

公开(公告)日：2024-02-08

申请号：US18381355

申请日：2023-10-18

Applicant: Japan Display Inc.

Inventor： Takeo KOITO ,  Kojiro IKEDA ,  Tae KUROKAWA

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

CPC classification number: G02F1/1343 ,  G02F1/133368 ,  G02F1/1347

Abstract: An optical device comprises a first liquid crystal cell, a second liquid crystal cell overlapped with the first liquid crystal cell. Each of the first liquid crystal cell and the second liquid crystal cell includes a first substrate arranged with a first electrode extending in a direction inclined at a predetermined angle with respect to a first direction, a second substrate arranged with a second electrode extending in a direction inclined at a predetermined angle with respect to a second direction, and a liquid crystal layer. An extension direction of the first electrode and an that of the second electrode intersect each other without being perpendicular. The extension directions of the first electrode and the second electrode in the first liquid crystal cell and that of the first electrode and the second electrode in the second liquid crystal cell are different from each other.

公开(公告)号：US20240004243A1

公开(公告)日：2024-01-04

申请号：US18370035

申请日：2023-09-19

Applicant: Japan Display Inc.

Inventor： Takeo KOITO ,  Tae KUROKAWA ,  Kojiro IKEDA

IPC: G02F1/1343 ,  G02F1/1347

CPC classification number: G02F1/134309 ,  G02F1/1347

Abstract: A liquid crystal light control device in an embodiment according to the present invention includes a first liquid crystal cell, and a second liquid crystal cell overlapping the first liquid crystal cell. Each of the first liquid crystal cell and the second liquid crystal cell includes a first substrate arranged with a first electrode having a strip pattern, a second substrate arranged with a second electrode having a strip pattern, and a liquid crystal layer between the first substrate and the second substrate. A longitudinal direction of the strip pattern of the first electrode and a longitudinal direction of the strip pattern of the second electrode are arranged to intersect at an angle in the range of 45 degrees±10 degrees.

公开(公告)号：US20230408877A1

公开(公告)日：2023-12-21

申请号：US18460784

申请日：2023-09-05

Applicant: Japan Display Inc.

Inventor： Takeo KOITO ,  Junji KOBASHI

IPC: G02F1/1347 ,  G02F1/29 ,  G02F1/13363 ,  G02F1/1335

CPC classification number: G02F1/1347 ,  G02F1/292 ,  G02F1/13363 ,  G02F1/133536

Abstract: The display device includes an image display panel emitting linearly polarized light from a display area, a retardation plate on the image display panel, a variable phase difference element located on the retardation plate and providing phase difference to an incoming light, and a liquid crystal diffraction element on the variable phase difference element. The variable phase difference element is switchable between an on state, an off state, and an intermediate state, and the phase change of the intermediate state is smaller than the phase change of the on state. A first emission direction of a first emitted light in the on state, a second emission direction of a second emitted light in the off state, and a third emission direction of a third emitted light in the intermediate state are different from each other.

公开(公告)号：US20230400722A1

公开(公告)日：2023-12-14

申请号：US18206237

申请日：2023-06-06

Applicant: Japan Display Inc.

Inventor： Takeo KOITO ,  Shuji HAYASHI

IPC: G02F1/13 ,  G02F1/1343

CPC classification number: G02F1/1323 ,  G02F1/134363

Abstract: According to an aspect, a display device includes: a display panel; and a parallax formation panel disposed between the display panel and a viewpoint. The parallax formation panel includes first electrodes and second electrodes, the first electrodes being provided to be able to form light transmitting regions in accordance with positions of a plurality of predetermined viewpoints, the second electrodes being provided to be able to form light shielding regions that shield regions other than the light transmitting regions from light. A width of each first electrode in a first direction in which the plurality of viewpoints are arranged is longer than a length of each first electrode in a second direction orthogonal to the first direction and extending along a display surface of the display panel.