公开(公告)号：US20230375887A1

公开(公告)日：2023-11-23

申请号：US18230257

申请日：2023-08-04

Applicant: Japan Display Inc.

Inventor： Takahiro OCHIAI ,  Yukiya HIRABAYASHI ,  Shunpei TAKEUCHI ,  Osamu KOBAYASHI ,  Takeo KOITO ,  Koichi NAGAO

IPC: G02F1/1345 ,  G02F1/139 ,  G02F1/1343

CPC classification number: G02F1/1345 ,  G02F1/1393 ,  G02F1/134309

Abstract: A light adjustment device in which a plurality of liquid crystal cells each including a light adjustment region configured to polarize light emitted from a light source are stacked in a direction in which the light is emitted is disclosed. The liquid crystal cells each include a first substrate including a plurality of first drive electrodes extending in a first direction in the light adjustment region, and a second substrate sandwiching a liquid crystal layer between the first substrate and the second substrate and including a plurality of second drive electrodes extending in a second direction different from the first direction in the light adjustment region.

公开(公告)号：US20230258304A1

公开(公告)日：2023-08-17

申请号：US18136881

申请日：2023-04-20

Applicant: Japan Display Inc.

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

IPC: F21K9/233 ,  F21K9/61 ,  F21V8/00 ,  F21V11/06 ,  F21V14/00 ,  F21V5/00

CPC classification number: F21K9/233 ,  F21K9/61 ,  G02B6/0053 ,  G02B6/003 ,  F21V11/06 ,  F21V14/003 ,  F21V5/005 ,  F21Y2115/10

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.

公开(公告)号：US20230244120A1

公开(公告)日：2023-08-03

申请号：US18299083

申请日：2023-04-12

Applicant: Japan Display Inc.

Inventor： Tae KUROKAWA ,  Takeo KOITO ,  Masashi MITSUI

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

CPC classification number: G02F1/29 ,  G02F1/133738 ,  G02F1/133742 ,  G02F1/134309 ,  G02F2201/122 ,  G02F2203/07

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：US20210349344A1

公开(公告)日：2021-11-11

申请号：US17443120

申请日：2021-07-21

Applicant: Japan Display Inc.

Inventor： Takeo KOITO

IPC: G02F1/1333 ,  G02F1/1343 ,  G02F1/1335

Abstract: According to one embodiment, a display device and an electronic apparatus each include a liquid crystal layer, a first insulating substrate, a pixel electrode, a first transparent electrode disposed between the first insulating substrate and the liquid crystal layer, a second insulating substrate, a first organic insulating film overlapping the pixel electrode, a second organic insulating film disposed between the first organic insulating film and the liquid crystal layer, and a second transparent electrode overlapping the first transparent electrode and disposed between the second insulating substrate and the liquid crystal layer. The first organic insulating film includes a concave portion, and the second transparent electrode is disposed in the concave portion.

公开(公告)号：US20200210013A1

公开(公告)日：2020-07-02

申请号：US16811505

申请日：2020-03-06

Applicant: Japan Display Inc.

Inventor： Takeo KOITO ,  Koji ISHIZAKI ,  Hayato KURASAWA

IPC: G06F3/041 ,  G06F3/044 ,  G02F1/1333

Abstract: A detection device is provided and includes a detection electrode including first wire pieces, the detection electrode including a first wire and a second wire; and second wire pieces between the first wire and the second wire, wherein the first wire includes a first bent portion, the second wire includes a second bent portion, the first and second bent portions are formed by two of the first wire pieces including first and second edges, an angle of the first bent portion is different from an angle of the second bent portion, the first edge of the first bent portion is connected to the first edge of the second bent portion by a connecting portion, the second edge of the first bent portion is not in contact with the second edge of the second bent portion, and each of the second wire pieces is not connected to the first wire, the second wire, and the connecting portion.

公开(公告)号：US20200166821A1

公开(公告)日：2020-05-28

申请号：US16774827

申请日：2020-01-28

Applicant: Japan Display Inc.

Inventor： Takayuki NAKANISHI ,  Tatsuya YATA ,  Takeo KOITO

IPC: G02F1/29 ,  G02F1/133 ,  G02F1/1335 ,  G02F1/1343 ,  G02F1/1333

Abstract: According to one embodiment, a photodetector includes a sensor unit including at least one photosensor, a liquid crystal element including a first substrate includes a plurality of first control electrodes, a second substrate including a second control electrode, and a liquid crystal layer held between the first substrate and the second substrate, a liquid crystal controller which controls a voltage to be applied to the liquid crystal layer for forming a first lens that is opposed to the photosensor in the liquid crystal layer, and a sensor controller which controls the sensor.

公开(公告)号：US20190187484A1

公开(公告)日：2019-06-20

申请号：US16204587

申请日：2018-11-29

Applicant: Japan Display Inc. ,  NHK Media Technology, Inc.

Inventor： Takeo KOITO ,  Shuji HAYASHI ,  Teijiro OTSUKA

IPC: G02B27/22 ,  G02F1/1335

CPC classification number: G02B27/2214 ,  G02F1/133512 ,  G02F1/133526

Abstract: According to one embodiment, a display device includes a display portion including sub-pixels, and a light control portion overlapping the display portion, wherein the display portion includes a red sub-pixel, a green sub-pixel, and a blue sub-pixel, each of the red sub-pixel, the green sub-pixel, and the blue sub-pixel is shaped in a parallelogram, and inclined at a first angle of greater than or equal to 4° and less than or equal to 16° with respect to the second direction, the light control portion is inclined at a second angle substantially equivalent to arctan(2/9) with respect to the second direction.

公开(公告)号：US20180284560A1

公开(公告)日：2018-10-04

申请号：US15924359

申请日：2018-03-19

Applicant: Japan Display Inc.

Inventor： Tatsuya YATA ,  Takayuki NAKANISHI ,  Takeo KOITO

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

CPC classification number: G02F1/293 ,  G02F1/133526 ,  G02F1/133553 ,  G02F1/13362 ,  G02F1/1337 ,  G02F1/134309 ,  G02F1/13439 ,  G02F2201/121 ,  G02F2201/123

Abstract: According to one embodiment, an optical device includes a liquid crystal element including a first substrate including a plurality of first control electrodes, a second substrate which is opposed to the first substrate and comprises a second control electrode, and a first liquid crystal layer held between the first substrate and the second substrate, and a modulation element opposed to the liquid crystal element, the modulation element including a modulation portion which modulates incident light, and a non-modulation portion which is adjacent to the modulation portion.

公开(公告)号：US20180275483A1

公开(公告)日：2018-09-27

申请号：US15923049

申请日：2018-03-16

Applicant: Japan Display Inc.

Inventor： Takayuki NAKANISHI ,  Tatsuya YATA ,  Takeo KOITO

IPC: G02F1/29 ,  G02F1/1343 ,  G02F1/133 ,  G02F1/1335

CPC classification number: G02F1/29 ,  G02F1/13362 ,  G02F1/134309 ,  G02F1/134363 ,  G02F1/1347 ,  G02F1/13471 ,  G02F2001/294

Abstract: According to one embodiment, an illumination device includes a light source unit which emits light, a modulation element includes a modulation portion which modulates incident light, and a non-modulation portion which is adjacent to the modulation portion, and a liquid crystal element located between the light source unit and the modulation element, the liquid crystal element forming a lens between the light source unit and the modulation portion.

公开(公告)号：US20180239189A1

公开(公告)日：2018-08-23

申请号：US15873025

申请日：2018-01-17

Applicant: Japan Display Inc.

Inventor： Takeo KOITO

IPC: G02F1/1335 ,  G02F1/1343

CPC classification number: G02F1/133526 ,  G02B27/22 ,  G02F1/1323 ,  G02F1/133512 ,  G02F1/133528 ,  G02F2001/133607 ,  G02F2001/133626 ,  G02F2001/294

Abstract: According to one embodiment, a display device includes a display panel and an illumination device. The illumination device includes a light source unit, at least one light-shielding body which blocks part of the light emitted from the light source unit, at least one lens which refracts the light emitted from the light source unit, and an illumination controller. The illumination controller controls a first mode in which the light-shielding body and the lens are arranged at a first position, and a second mode in which at least one of the light-shielding body and the lens is arranged at a second position, which is different from the first position.