公开(公告)号：US20240385483A1

公开(公告)日：2024-11-21

申请号：US18789877

申请日：2024-07-31

Applicant: Japan Display Inc.

Inventor： Takeo KOITO ,  Kojiro IKEDA

IPC: G02F1/1337 ,  G02F1/1333 ,  G02F1/139

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 being shaped as a polygon and including a first substrate that is translucent and a second substrate that is translucent and overlapping the first substrate, and a light source disposed on one side relative to the panel unit in the first direction.

公开(公告)号：US20240361645A1

公开(公告)日：2024-10-31

申请号：US18765740

申请日：2024-07-08

Applicant: JAPAN DISPLAY INC.

Inventor： Kojiro IKEDA ,  Takeo KOITO

IPC: G02F1/1343 ,  G02F1/1347

CPC classification number: G02F1/13439 ,  G02F1/1347

Abstract: According to one embodiment, each of a first liquid crystal to a fourth liquid crystal cell includes a first strip electrode, a second strip electrode, a third strip electrode, and a fourth strip electrode, the first strip electrode to the fourth strip electrode of the first liquid crystal cell and the first strip electrode to the fourth strip electrode of the third liquid crystal cell have a first shape, and the first strip electrode to the fourth strip electrode of the second liquid crystal cell and the first strip electrode to the fourth strip electrode of the fourth liquid crystal cell have a second shape that is different from the first shape.

公开(公告)号：US20240272487A1

公开(公告)日：2024-08-15

申请号：US18647842

申请日：2024-04-26

Applicant: Japan Display Inc.

Inventor： Kojiro IKEDA ,  Takeo KOITO

IPC: G02F1/1337 ,  G02F1/1343

CPC classification number: G02F1/133784 ,  G02F1/133788 ,  G02F1/13439

Abstract: A first liquid crystal cell of a plurality of liquid crystal cells of an optical element includes a first alignment film covering first and second transparent electrodes on a first substrate, a second alignment film covering third and fourth transparent electrodes on a second substrate, and a liquid crystal layer between the first substrate and the second substrate. The first liquid crystal cell includes the first and second transparent electrodes extending in a first direction, the third and fourth transparent electrodes extending in a second direction, the first alignment film aligning liquid crystal molecules in the liquid crystal layer in the second direction when no voltages are applied to the first and second transparent electrodes, and the second alignment film aligning liquid crystal molecules in the liquid crystal layer in the second direction when no voltages are applied to the third and fourth transparent electrodes.

公开(公告)号：US20240118575A1

公开(公告)日：2024-04-11

申请号：US18390270

申请日：2023-12-20

Applicant: Japan Display Inc.

Inventor： Takayuki IMAI ,  Kojiro IKEDA ,  Takeo KOITO

IPC: G02F1/1347 ,  G02F1/1343 ,  G02F1/1362

CPC classification number: G02F1/1347 ,  G02F1/134309 ,  G02F1/13439 ,  G02F1/136286

Abstract: An optical device includes an optical element including a liquid crystal cell configured to distribute light emitted from a light source, a power supply part configured to generate first and second potentials, a control signal generation circuit part configured to generate a control signal that controls a pulse width of each of the first and second potentials, and a switch circuit part configured to output a first potential signal including the first potential with a first pulse width and the second potential with a second pulse width based on the control signal. The liquid crystal cell includes a first substrate on which first and second transparent electrodes are alternately arranged in a first direction, and a second substrate on which third and fourth transparent electrodes are alternately arranged in a second direction. The first potential signal is input to the first transparent electrode.

公开(公告)号：US20240077768A1

公开(公告)日：2024-03-07

申请号：US18506522

申请日：2023-11-10

Applicant: Japan Display Inc.

Inventor： Kojiro IKEDA ,  Takeo KOITO

IPC: G02F1/1343 ,  G02F1/1347

CPC classification number: G02F1/134309 ,  G02F1/1347

Abstract: An optical element includes first to fourth liquid crystal cells. Each of the first to fourth liquid crystal cells includes a first substrate on which a first pair of comb-shaped transparent electrodes are arranged and a second substrate on which a second pair of comb-shaped transparent electrodes are arranged. An extending direction of the first pair of comb-shaped transparent electrodes is orthogonal to an extending direction of the second pair of comb-shaped transparent electrodes. Between two different liquid crystal cells of the first to fourth liquid crystal cells, one of the first pair of comb-shaped transparent electrodes of one liquid crystal cell and one of the second pair of comb-shaped transparent electrodes of the other liquid crystal cell are electrically connected to each other.

公开(公告)号：US20230375159A1

公开(公告)日：2023-11-23

申请号：US18231297

申请日：2023-08-08

Applicant: Japan Display Inc.

Inventor： Tae KUROKAWA ,  Takeo KOITO ,  Kojiro IKEDA

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

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

Abstract: An optical element includes a first liquid crystal cell and a second liquid crystal cell. The first liquid crystal cell and the second liquid crystal cell are stacked. Each of the first liquid crystal cell and the second liquid crystal cell includes a first substrate on which a first transparent electrode and a second transparent electrode are alternately and repeatedly arranged in a first direction, a second substrate on which a third transparent electrode and a fourth transparent electrode are alternately and repeatedly arranged in a second direction intersecting the first direction, and a liquid crystal layer between the first substrate and the second substrate. The second substrate of the first liquid crystal cell and the first substrate of the second liquid crystal cell are adjacent to each other.

公开(公告)号：US20230244109A1

公开(公告)日：2023-08-03

申请号：US18132016

申请日：2023-04-07

Applicant: Japan Display Inc.

Inventor： Takeo KOITO ,  Kojiro IKEDA ,  Tae KUROKAWA

IPC: G02F1/1339 ,  G02F1/1343

CPC classification number: G02F1/13394 ,  G02F1/134309 ,  G02F1/13398

Abstract: According to an aspect, an optical element includes: a first substrate including a first electrode; a second substrate stacked on the first substrate and including a second electrode; a liquid crystal layer provided between the first substrate and the second substrate; a sealing member extending along an outer periphery of the liquid crystal layer; a first spacer provided on an inner side of the sealing member; and a conductive column provided on an outer side of the sealing member and electrically connecting the first electrode and the second electrode. The conductive column and the first spacer include the same material.

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：US20220171228A1

公开(公告)日：2022-06-02

申请号：US17670623

申请日：2022-02-14

Applicant: Japan Display Inc.

Inventor： Tenfu NAKAMURA ,  Kentaro OKUYAMA ,  Kojiro IKEDA

IPC: G02F1/1333 ,  G02F1/1334 ,  C09J7/00

Abstract: According to one embodiment, a display device includes a first display panel including a first and second transparent substrate, a first liquid crystal layer, and a first light-emitting element, a second display panel including a third and fourth transparent substrate, a second liquid crystal layer and a second light emitting element, a filling member provided between the first and second display panel and having a refractive index equal to that of the first to fourth transparent substrates, a first light guide bonded to the first and second display panel, and a first adhesive member provided between the first display panel and the first light guide and between the second display panel and the first light guide.

公开(公告)号：US20170287989A1

公开(公告)日：2017-10-05

申请号：US15625205

申请日：2017-06-16

Applicant: Japan Display Inc.

Inventor： Masaaki KABE ,  Kojiro IKEDA ,  Tsutomu HARADA ,  Akira SAKAIGAWA

IPC: H01L27/32

CPC classification number: H01L27/3218 ,  H01L27/3216 ,  H01L27/3244

Abstract: According to an aspect, a display device includes a display unit in which a plurality of pixels are arranged in a matrix along two directions intersecting with each other. Each of the pixels includes three sub-pixels corresponding to three of four colors including a first color, a second color, a third color, and a fourth color. An area of one sub-pixel among the three sub-pixels is larger than the area of each of the other two sub-pixels. A sub-pixel of the fourth color is one of the other two sub-pixels. Pixels each including the sub-pixel of the fourth color are not adjacent to each other in at least one of the two directions in the display unit.