公开(公告)号：US20240369890A1

公开(公告)日：2024-11-07

申请号：US18773729

申请日：2024-07-16

Applicant: Japan Display Inc.

Inventor： Koichi NAGAO

IPC: G02F1/1362 ,  G02F1/1365

Abstract: According to an aspect, a light adjustment device includes: a panel unit in which a plurality of light adjustment panels are stacked in a first direction, the light adjustment panels each including a first substrate and a second substrate, the first substrate including at least two terminal groups each including a plurality of terminals that are capable of being coupled to one flexible printed circuit board, the second substrate overlapping with the first substrate; and a plurality of flexible printed circuit boards each of which is coupled to one of the terminal groups of a corresponding one of the light adjustment panels. A plurality of the terminal groups are arranged in a second direction intersecting the first direction when the panel unit is viewed in the first direction, and the flexible printed circuit boards do not overlap with one another when viewed in the first direction.

公开(公告)号：US20230384640A1

公开(公告)日：2023-11-30

申请号：US18231915

申请日：2023-08-09

Applicant: Japan Display Inc.

Inventor： Takahiro OCHIAI ,  Shunpei TAKEUCHI ,  Osamu KOBAYASHI ,  Hiroya MORIMOTO ,  Takeo KOITO ,  Koichi NAGAO

IPC: G02F1/1347 ,  G02F1/1362 ,  G02F1/01 ,  G02F1/1335

CPC classification number: G02F1/1347 ,  G02F1/136209 ,  G02F1/0136 ,  G02F1/13629 ,  G02F1/133545

Abstract: A light adjustment device includes a plurality of liquid crystal cells each including a light adjustment region that polarizes light emitted from a light source, the liquid crystal cells being stacked in a direction in which the light is emitted. The liquid crystal cells each include a first substrate in which a plurality of first metal wires are provided, and a second substrate in which a plurality of second metal wires are provided and that sandwiches a liquid crystal layer with the first substrate.

公开(公告)号：US20240319528A1

公开(公告)日：2024-09-26

申请号：US18672387

申请日：2024-05-23

Applicant: Japan Display Inc.

Inventor： Koichi NAGAO ,  Takeo KOITO

IPC: G02F1/1333 ,  G02F1/1347

CPC classification number: G02F1/133308 ,  G02F1/1347 ,  G02F2201/38 ,  G02F2202/28

Abstract: A light adjustment device includes a panel unit in which a plurality of light adjustment panels each including a first substrate and a second substrate overlapping the first substrate on one side in a first direction intersecting the first substrate are stacked in the first direction, an optical sheet bonded to the light adjustment panels in a state of overlapping the light adjustment panels, and a light source positioned on another side relative to the panel unit in the first direction. The optical sheet is bonded to at least one of the second substrate of a first light adjustment panel positioned furthest to the one side in the first direction in the panel unit and the first substrate of a second light adjustment panel positioned furthest to the other side in the first direction.

公开(公告)号：US20240012276A1

公开(公告)日：2024-01-11

申请号：US18347586

申请日：2023-07-06

Applicant: Japan Display Inc.

Inventor： Shunpei TAKEUCHI ,  Kohei YAMAGUCHI ,  Katsuichi IDE ,  Yukiya HIRABAYASHI ,  Osamu KAI ,  Hiroya MORIMOTO ,  Koichi NAGAO

IPC: G02F1/1333 ,  G02F1/1339 ,  G02F1/1341

CPC classification number: G02F1/133354 ,  G02F1/13394 ,  G02F1/1341 ,  G02F1/133305

Abstract: A light adjustment device includes a panel unit having a rectangular pillar shape and including a plurality of light adjustment panels stacked in a first direction, each light adjustment panel having a polygonal shape and including a lower substrate and an upper substrate overlapping the lower substrate. The light adjustment panels each have a first side, a second side adjacent to the first side, and a first corner at which the first side intersects the second side, and when two light adjustment panels adjacent to each other in a first direction among the light adjustment panels are viewed in the first direction, the first corner of one of the light adjustment panels is positioned inside of an edge of the other light adjustment panel, and the first corner of the other light adjustment panel is positioned inside of an edge of the one light adjustment panel.

公开(公告)号：US20230147664A1

公开(公告)日：2023-05-11

申请号：US18153468

申请日：2023-01-12

Applicant: Japan Display Inc.

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

IPC: G02F1/1343 ,  G02F1/1347

CPC classification number: G02F1/134309 ,  G02F1/1347

Abstract: According to one embodiment, a liquid crystal device includes a first liquid crystal cell and a second liquid crystal cell bonded to the first liquid crystal cell. The first liquid crystal cell and the second liquid crystal cell each include a first substrate including first electrodes formed in a strip shape, a second substrate including second electrodes formed in a strip shape, and a liquid crystal layer held between the first substrate and the second substrate. An angle of intersection of the first electrodes and the second electrodes is less than 90° in each of the first liquid crystal cell and the second liquid crystal cell.

公开(公告)号：US20250068007A1

公开(公告)日：2025-02-27

申请号：US18947000

申请日：2024-11-14

Applicant: Japan Display Inc.

Inventor： Shunpei TAKEUCHI ,  Kohei YAMAGUCHI ,  Katsuichi IDE ,  Yukiya HIRABAYASHI ,  Osamu KAI ,  Hiroya MORIMOTO ,  Koichi NAGAO

IPC: G02F1/1333 ,  G02F1/1339 ,  G02F1/1341 ,  G02F1/1347

Abstract: A light adjustment device includes a panel unit having a rectangular pillar shape and including a plurality of light adjustment panels stacked in a first direction, each light adjustment panel having a polygonal shape and including a lower substrate and an upper substrate overlapping the lower substrate. The light adjustment panels each have a first side, a second side adjacent to the first side, and a first corner at which the first side intersects the second side, and when two light adjustment panels adjacent to each other in a first direction among the light adjustment panels are viewed in the first direction, the first corner of one of the light adjustment panels is positioned inside of an edge of the other light adjustment panel, and the first corner of the other light adjustment panel is positioned inside of an edge of the one light adjustment panel.

公开(公告)号：US20240045282A1

公开(公告)日：2024-02-08

申请号：US18367123

申请日：2023-09-12

Applicant: JAPAN DISPLAY INC.

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

IPC: G02F1/1343 ,  G02F1/1337

CPC classification number: G02F1/134309 ,  G02F1/133788 ,  G02F1/133757

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 the first strip electrode and the second strip electrode in the first liquid crystal cell is different from the extension direction of the first strip electrode and the second strip electrode in the second liquid crystal cell. The extension direction of the first strip electrode and the second strip electrode intersects with the extension direction of the third strip electrode and the fourth strip electrode at an angle other than 90°.

公开(公告)号：US20230418108A1

公开(公告)日：2023-12-28

申请号：US18367116

申请日：2023-09-12

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 ,  G02F2201/124 ,  G02F1/1347 ,  G02F1/134309

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：US20240288155A1

公开(公告)日：2024-08-29

申请号：US18656142

申请日：2024-05-06

Applicant: Japan Display Inc.

Inventor： Masashi TAKAHATA ,  Koichi NAGAO

IPC: F21V29/61 ,  F21V9/40 ,  F21V29/503 ,  F21V29/508 ,  F21V29/67 ,  F21Y115/10

CPC classification number: F21V29/61 ,  F21V9/40 ,  F21V29/503 ,  F21V29/508 ,  F21V29/67 ,  F21Y2115/10

Abstract: According to an aspect, an illumination device includes: a light source configured to emit light; a light distributor including a liquid crystal panel and configured to adjust a light distribution region of light externally emitted from the light source by controlling transmittance and a transmission region of light passing through the liquid crystal panel; a temperature information acquirer configured to acquire information indicating temperature of the light distributor; and a controller configured to perform predetermined operation for preventing or reducing increase in the temperature of the light distributor when the temperature of the light distributor is equal to or higher than a predetermined temperature.

公开(公告)号：US20230324746A1

公开(公告)日：2023-10-12

申请号：US18336193

申请日：2023-06-16

Applicant: Japan Display Inc.

Inventor： Yuuichi KANESAKA ,  Koichi NAGAO ,  Tomohide OOHIRA ,  Takayuki IMAI

IPC: G02F1/1345 ,  G02F1/1343

CPC classification number: G02F1/13452 ,  G02F1/134309

Abstract: According to one embodiment, a liquid crystal device includes a first liquid crystal cell, a second liquid crystal cell, a first flexible wiring board including a first terminal and connected to the first liquid crystal cell, a second flexible wiring board including a second terminal and connected to the second liquid crystal cell, and a circuit board including a first connector connected to the first terminal and a second connector connected to the second terminal. The first flexible wiring board and the second flexible wiring board are arranged without overlapping each other in plan view. A first distance from an edge of the circuit board to the first connector and a second distance from the edge to the second connector are different from each other.