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：US20230260433A1

公开(公告)日：2023-08-17

申请号：US18109041

申请日：2023-02-13

Applicant: Japan Display Inc.

Inventor： Kazunari TOMIZAWA ,  Takeo KOITO

IPC: G09G3/00 ,  G09G3/36 ,  F21V8/00

CPC classification number: G09G3/001 ,  G09G3/36 ,  G02B6/0035 ,  G09G2320/068 ,  G09G2320/0209 ,  G09G2300/0439

Abstract: According to an aspect, a display device includes: a liquid crystal display panel provided with a plurality of pixels; and a light source provided with a plurality of light emission points. The ratio of a pitch of the pixels arranged in a predetermined direction to a pitch of the light emission points arranged in the predetermined direction is 1:4n or 1:6n, and n is a natural number.

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：US20230168542A1

公开(公告)日：2023-06-01

申请号：US18102284

申请日：2023-01-27

Applicant: Japan Display Inc.

Inventor： Yoshihiro SAKURAI ,  Hironao TANAKA ,  Harumi OKUNO ,  Takeo KOITO

IPC: G02F1/1337 ,  G02F1/1343

CPC classification number: G02F1/1337 ,  G02F1/134363 ,  G02F1/133707 ,  G02F1/134372 ,  G02F1/133749

Abstract: A liquid crystal panel is provided and includes first and second substrates with liquid crystal layer therebetween; and first electrode in display region; second electrode disposed between first electrode and first substrate; and alignment film having alignment direction, wherein first electrode has: pair of electrode branches; slit between pair of electrode branches; first and second connections connecting pair of electrode branches; wherein first electrode has areas including first and second bent portions, main portion disposed between first and second bent portions, wherein first bent portion is adjacent to contact hole of first electrode, wherein first and second bent portions are bent relative to main portion, and wherein direction of first bent portion is substantially parallel to direction of second bent portion.

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：US20230052905A1

公开(公告)日：2023-02-16

申请号：US17885694

申请日：2022-08-11

Applicant: Japan Display Inc.

Inventor： Takeo KOITO

IPC: G02F1/13 ,  G02F1/1335 ,  G02F1/1343

Abstract: According to an aspect, a view-angle control device includes: a drive layer in which light-transmitting regions and switchable regions are alternately arranged in one direction, each light-transmitting region being configured to transmit light, each switchable region being switchable between a light-transmitting state and a light-blocking state through switching of liquid crystal orientation; and a plurality of optical member layers stacked together with the drive layer. Each optical member layer includes a base member that transmits light and a light-blocking part that is provided at a position overlapping with the switchable region and blocks light. The light-blocking part is disposed on a surface of the base member on a farther side from the drive layer.

公开(公告)号：US20220377305A1

公开(公告)日：2022-11-24

申请号：US17875410

申请日：2022-07-28

Applicant: Japan Display Inc.

Inventor： Daisuke OZEKI ,  Takeo KOITO ,  Chikyu NAKAOKA

IPC: H04N13/117 ,  H04N13/31 ,  G02B27/01

Abstract: According to one embodiment, an image processing device includes an acquisition unit which obtains a target image, a generation unit which generates a three-dimensional image by reordering a plurality of video signals corresponding to the obtained target image such that each of the video signals is written to one of a plurality of pixels arranged in a horizontal direction while skipping a predetermined number of pixels, and an output unit which outputs the generated three-dimensional image to a display device.

公开(公告)号：US20220260217A1

公开(公告)日：2022-08-18

申请号：US17569525

申请日：2022-01-06

Applicant: Japan Display Inc.

Inventor： Makoto HASEGAWA ,  Takeo KOITO ,  Nobuyuki SUZUKI ,  Masafumi OKADA

IPC: F21K9/233 ,  F21K9/61 ,  F21V8/00

Abstract: The purpose of the present invention is to realize a lighting device of small light distribution angle and less leakage light and further to realize a lighting device in which the light beam is easy to control. The following is an example of the structure to meet the above purpose. A lighting device including: a light guide; LEDs set at a side surface of the light guide; a prism sheet set on a major surface of the light guide, in which a first louver which extends in a first direction and, a second louver which extends in an orthogonal direction to the first direction are superposed on the prism sheet.