公开(公告)号：US20230408743A1

公开(公告)日：2023-12-21

申请号：US18331389

申请日：2023-06-08

Applicant: Japan Display Inc. ,  OSAKA UNIVERSITY

Inventor： Ayaka HIGUCHI ,  Koichi IGETA ,  Shinichiro OKA ,  Yasushi TOMIOKA ,  Hiroyuki YOSHIDA

IPC: G02B5/30

CPC classification number: G02B5/3016

Abstract: According to one embodiment, a liquid crystal optical element includes a first liquid crystal layer including a first cholesteric liquid crystal and a second liquid crystal layer including a second cholesteric liquid crystal, a helical pitch of each of the first cholesteric liquid crystal and the second cholesteric liquid crystal changing continuously. The first cholesteric liquid crystal including a first portion having a first helical pitch and a second portion having a second helical pitch different from the first helical pitch. The second cholesteric liquid crystal including a third portion having a third helical pitch and a fourth portion having a fourth helical pitch different from the third helical pitch.

公开(公告)号：US11847287B2

公开(公告)日：2023-12-19

申请号：US18173879

申请日：2023-02-24

Applicant: Japan Display Inc.

Inventor： Takayuki Nakanishi ,  Koji Noguchi ,  Koji Ishizaki ,  Yasuyuki Teranishi ,  Takeya Takeuchi

IPC: G06F3/047 ,  G06F3/044 ,  G09G3/298 ,  G06F3/0354 ,  H01J11/12 ,  G06F3/041 ,  G09G3/36 ,  G02F1/1343

CPC classification number: G06F3/0446 ,  G06F3/03547 ,  G06F3/047 ,  G06F3/0412 ,  G06F3/0418 ,  G06F3/0445 ,  G09G3/2983 ,  G09G3/2986 ,  G09G3/3696 ,  H01J11/12 ,  G02F1/134363 ,  G02F1/134372 ,  G06F3/0448 ,  G09G2330/06

Abstract: A touch panel, a display panel, and a display unit achieving prevention of erroneous detection caused by external noise. The touch panel includes: a plurality of detection scan electrodes extending in a first direction and a plurality of detection electrodes facing the plurality of detection scan electrodes and extending in a second direction which intersects the first direction. The one or more selected detection scan electrodes are selected, in a desired unit, from the plurality of detection scan electrodes, to be supplied with a selection pulse, and each of the first and the second detection electrodes is selected from the plurality of detection electrodes.

公开(公告)号：US11846415B2

公开(公告)日：2023-12-19

申请号：US17864500

申请日：2022-07-14

Applicant: Japan Display Inc.

Inventor： Michihide Shibata

IPC: F21V7/00 ,  F21V7/04 ,  F21Y115/10

CPC classification number: F21V7/005 ,  F21V7/041 ,  F21Y2115/10

Abstract: The purpose is to realize a lighting device of thin, small light distribution angle and high intensity illumination. The invention is: a lighting device, which emits light in a direction perpendicular to a normal surface, including: light source units, disposed radially with a certain azimuth with respect to a center of the lighting device, each of the light source units, having an optical axis parallel to the major surface, and emitting light toward the center of the lighting device, each of the light source units including a funnel shaped reflector, which has an opening and a neck, and an LED light source disposed at the neck, mirrors disposed opposing to the openings of the light source units, in which the mirrors reflect light emitted from the light source units to the direction perpendicular to the major surface.

公开(公告)号：US20230403904A1

公开(公告)日：2023-12-14

申请号：US18457342

申请日：2023-08-29

Applicant: Japan Display Inc.

Inventor： Hiroshi TABATAKE

IPC: H10K59/35 ,  H10K50/84

CPC classification number: H10K59/353 ,  H10K50/841

Abstract: According to one embodiment, a display device includes a substrate, a pixel circuit, an insulating layer including a contact hole, a lower electrode connected to the pixel circuit via the contact hole, an upper electrode, an organic layer between the lower electrode and the upper electrode, a rib formed of an inorganic material and including an aperture, and a partition above the rib. The organic layer includes a first organic layer in contact with the lower electrode via the aperture and a second organic layer located on the partition and spaced apart from the first organic layer. The partition overlaps an entire of the contact hole in plan view.

公开(公告)号：US11841588B2

公开(公告)日：2023-12-12

申请号：US18178655

申请日：2023-03-06

Applicant: Japan Display Inc.

Inventor： Toshiharu Matsushima

IPC: G02F1/1337 ,  G02F1/1343

CPC classification number: G02F1/133707 ,  G02F1/1337 ,  G02F1/134309 ,  G02F1/134363 ,  G02F1/133738 ,  G02F1/134372 ,  G02F2201/124

Abstract: According to one embodiment, a display device includes a first substrate with a first alignment film, a second substrate with a second alignment film, and a liquid crystal layer interposed therebetween. The first substrate has first and second electrodes. An initial alignment direction of liquid crystal molecules of the liquid crystal layer is parallel to a first direction or a direction orthogonal to the first direction. The second electrode includes comblike electrodes extending parallel to the first direction and a connecting portion which connects the comblike electrodes. The connecting portion includes a projection which projects in a second direction more than an outermost comblike electrode.

公开(公告)号：US11841582B2

公开(公告)日：2023-12-12

申请号：US17144804

申请日：2021-01-08

Applicant: Japan Display Inc.

Inventor： Tsutomu Harada ,  Shigenori Aoki ,  Koji Yoshida ,  Masayuki Mifune

IPC: G02F1/13357 ,  G02B27/01 ,  G09G3/32

CPC classification number: G02F1/133606 ,  G02B27/0101 ,  G02F1/133603 ,  G02B2027/0121 ,  G02F1/133605 ,  G09G3/32 ,  G09G2320/066

Abstract: A display device is provided and including a backlight device including a plurality of light sources; a display panel disposed to oppose the backlight device and incline with respect to a direction perpendicular to an optical axis of the backlight device; a first diffusion plate between the display panel and the backlight device; and a second diffusion plate arranged at a predetermined angle with respect to the first diffusion plate.

公开(公告)号：US20230393438A1

公开(公告)日：2023-12-07

申请号：US18328798

申请日：2023-06-05

Applicant: Japan Display Inc.

Inventor： Shunichi KIMURA ,  Toshiharu MATSUSHIMA

IPC: G02F1/1345 ,  G02F1/1343 ,  G02F1/1333 ,  G02F1/13

CPC classification number: G02F1/13454 ,  G02F1/134309 ,  G02F1/13439 ,  G02F1/133345 ,  G02F1/1323 ,  G02F2203/62 ,  G02F2202/022

Abstract: According to an aspect, a liquid crystal panel includes: a light-transmitting first substrate; a light-transmitting second substrate disposed facing the first substrate with a liquid crystal interposed between the first substrate and the second substrate; a conductive layer provided on the first substrate on a side facing the liquid crystal and comprising wiring lines or electrodes; an insulating layer stacked on the conductive layer on a side facing the liquid crystal; a first electrode layer stacked on the insulating layer on a side facing the liquid crystal; a second electrode layer provided on the second substrate on a side facing the liquid crystal; and a switch capable of opening and closing a coupling path between the first electrode layer and a reset potential. A sheet resistance of the first electrode layer is higher than a sheet resistance of the conductive layer and a sheet resistance of the second electrode layer.

公开(公告)号：US20230393429A1

公开(公告)日：2023-12-07

申请号：US18328783

申请日：2023-06-05

Applicant: Japan Display Inc.

Inventor： Yuji MAEDE

IPC: G02F1/1335 ,  G02F1/1362 ,  G02F1/1333 ,  G02F1/13357 ,  G02F1/1343

CPC classification number: G02F1/133526 ,  G02F1/136286 ,  G02F1/136222 ,  G02F1/133345 ,  G02F1/133621 ,  G02F1/134363 ,  G02F2201/52

Abstract: According to one embodiment, a display device includes a first substrate including a plurality of switching elements, a plurality of signal lines connected to the plurality of switching elements, respectively, a plurality of color filters each provided between each adjacent pair of the plurality of signal lines, and a plurality of metal layers opposing the plurality of signal lines, respectively, a second substrate including a lens array including a plurality of lenses, and an insulating layer that covers the lens arrays, and a liquid crystal layer provided between the first substrate and the second substrate, wherein the plurality of lenses have a refractive index higher than that of the insulating layer.

公开(公告)号：US20230387374A1

公开(公告)日：2023-11-30

申请号：US18325145

申请日：2023-05-30

Applicant: Japan Display Inc.

Inventor： Yoshinori AOKI ,  Gen KOIDE

IPC: H01L33/62 ,  H01L27/15 ,  H01L27/12 ,  H01L25/16 ,  H01L25/075

CPC classification number: H01L33/62 ,  H01L27/156 ,  H01L27/124 ,  H01L25/167 ,  H01L25/0753

Abstract: According to one embodiment, a display device includes a display panel, a first wiring substrate, and a first conductive material. The display panel includes a basement located in a display area and a non-display area, a plurality of pixels arranged above the basement and located in the display area, a plurality of pads arranged above the basement and located in the non-display area, and a first power line arranged above the basement, located between the display area and the plurality of pads in the non-display area, and including the first connection surface.

公开(公告)号：US20230387320A1

公开(公告)日：2023-11-30

申请号：US18447470

申请日：2023-08-10

Applicant: Japan Display Inc.

Inventor： Akihiro HANADA ,  Hajime WATAKABE ,  Ryo ONODERA

IPC: H01L29/786 ,  H01L29/36

CPC classification number: H01L29/7869 ,  H01L29/36

Abstract: A semiconductor device includes a first conductive layer, a first insulating layer on the first conductive layer, an oxide semiconductor layer on the first insulating layer, and second and third conductive layers on the oxide semiconductive layer. The oxide semiconductor layer includes a first region, a second region in contact with the second conductive layer, a third region in contact with the third conductive layer, a first impurity region between the first region and the second region, and a second impurity region between the first region and the third region. The first impurity region is in contact with the second conductive layer. The second impurity region is in contact with the third conductive layer. An electrical conductivity of each of the first impurity region and the second impurity region is greater than an electrical conductivity of each of the second region and the third region.