公开(公告)号：US20210193062A1

公开(公告)日：2021-06-24

申请号：US17191332

申请日：2021-03-03

Applicant: Japan Display Inc.

Inventor： Kojiro IKEDA ,  Kentaro OKUYAMA ,  Masaaki KABE

IPC: G09G3/36 ,  G02F1/1334

Abstract: A display device includes a first light-transmitting substrate, a second light-transmitting substrate opposed to the first light-transmitting substrate, a liquid crystal layer comprising polymer dispersed liquid crystals filled between the first light-transmitting substrate and the second light-transmitting substrate, at least one light emitter opposed to at least one of a side surface of the first light-transmitting substrate and a side surface of the second light-transmitting substrate, and a first electrode and a second electrode disposed so as to sandwich the liquid crystal layer.

公开(公告)号：US20210132279A1

公开(公告)日：2021-05-06

申请号：US17147529

申请日：2021-01-13

Applicant: Japan Display Inc.

Inventor： Yudai NUMATA ,  Kentaro OKUYAMA

IPC: F21V8/00

Abstract: According to one embodiment, a display device includes a first transparent substrate, a second transparent substrate, a liquid crystal layer, light-emitting elements disposed in a first direction, a third transparent substrate including a main surface and a side surface opposed to the light-emitting elements, and a transparent layer disposed on the main surface and having a lower refractive index than the third transparent substrate. The third transparent substrate is bonded to the first transparent substrate or the second transparent substrate with the transparent layer sandwiched in between. The transparent layer includes strip portions disposed in the first direction and extended along a second direction.

公开(公告)号：US20210055603A1

公开(公告)日：2021-02-25

申请号：US17092808

申请日：2020-11-09

Applicant: Japan Display Inc.

Inventor： Tae KUROKAWA ,  Kentaro OKUYAMA

IPC: G02F1/1335 ,  G02F1/1334 ,  G02F1/1333 ,  G02F1/1337 ,  G02F1/1343 ,  G02F1/1345 ,  G02F1/13357

Abstract: According to one embodiment, a display device includes a first substrate including a light-shielding layer and a conductive line having a first side surface and a second side surface on a side opposite to the first side surface, a second substrate opposed to the first substrate, a polymer dispersed liquid crystal layer held between the first substrate and the second substrate, and including a polymer and liquid crystal molecules, and a light-emitting element opposed to an end portion of at least one of the first substrate and the second substrate, wherein the first side surface is closer to the light-emitting element than the second side surface, and the light-shielding layer covers at least the first side surface of the conductive line.

公开(公告)号：US20200310209A1

公开(公告)日：2020-10-01

申请号：US16829031

申请日：2020-03-25

Applicant: Japan Display Inc.

Inventor： Kentaro OKUYAMA ,  Hiroki SUGIYAMA ,  Yoshihide OHUE

IPC: G02F1/1362 ,  G02F1/1339 ,  G02F1/1334

Abstract: According to one embodiment, a display device including a first substrate a pixel electrode, and lines, a second substrate including a common electrode, a liquid crystal layer located between the first substrate and the second substrate, and a sealing material located in a non-display area, wherein each of the lines includes a first portion extending in a first direction in a display area and a second portion extending in a second direction in the non-display area, the lines include first lines, the second portion of each of the first lines overlapping the sealing material, and the common electrode does not overlap the second portion in an area overlapping the liquid crystal layer.

公开(公告)号：US20190302343A1

公开(公告)日：2019-10-03

申请号：US16357518

申请日：2019-03-19

Applicant: Japan Display Inc.

Inventor： Kentaro OKUYAMA ,  Yudai NUMATA

IPC: F21V8/00 ,  G02F1/1334

Abstract: According to one embodiment, a display device includes a first substrate, a second substrate opposed to the first substrate and including an end portion, a liquid crystal layer provided between the first substrate and the second substrate and including a polymer in a shape of a streak and a liquid crystal molecule, a light-emitting element having a light emitting portion opposed to the end portion, and a light guide located between the end portion and the light emitting portion.

公开(公告)号：US20190278138A1

公开(公告)日：2019-09-12

申请号：US16414433

申请日：2019-05-16

Applicant: Japan Display Inc.

Inventor： Akira SAKAIGAWA ,  Kentaro OKUYAMA

IPC: G02F1/1335 ,  G09G3/34 ,  G02F1/13 ,  G02F1/1334 ,  G09G3/36

Abstract: A display device including a first substrate including a plurality of reflection electrodes on a front side of the first substrate, the plurality of reflection electrodes including a first reflection electrode and a second reflection electrode which is farther away from a light source than the first reflection electrode; a second substrate including a transparent electrode on a back side of the second substrate; a light modulation layer which includes a polymer dispersed liquid crystal layer containing a liquid crystalline monomer and liquid crystal molecules dispersed in the liquid crystalline monomer, the light modulation layer being disposed between the plurality of reflection electrodes and the transparent electrode; a drive section driving the plurality of reflection electrodes and the transparent electrode, wherein an application time of a first drive voltage applied between the transparent electrode and the first reflection electrode is shorter than an application time of a second drive voltage applied between the transparent electrode and the second reflection electrode.

公开(公告)号：US20190204632A1

公开(公告)日：2019-07-04

申请号：US16297168

申请日：2019-03-08

Applicant: Japan Display Inc.

Inventor： Kentaro OKUYAMA ,  Akira SAKAIGAWA

IPC: G02F1/1334 ,  G02F1/1335

CPC classification number: G02F1/1334 ,  G02F1/133615 ,  G02F2001/133622 ,  G02F2001/133638

Abstract: A display device includes a light modulation layer and a light source. The light modulation layer is disposed between a pair of transparent substrates, has determined refractive index anisotropy, and includes plural light modulation elements which differ in responsiveness to an electric field generated by electrodes formed on a transparent substrate. The light source emits light of a determined color incident on the light modulation layer from a side of the light modulation layer. When the electric field is not generated, the light modulation layer transmits the incident light emitted from the light source. When the electric field is generated, the light modulation layer scatters the incident light and emits scattered light to a transparent substrate.

公开(公告)号：US20170255072A1

公开(公告)日：2017-09-07

申请号：US15440180

申请日：2017-02-23

Applicant: Japan Display Inc.

Inventor： Hideki KANEKO ,  Kentaro OKUYAMA ,  Hiroshi INAMURA ,  Hiroki SUGIYAMA ,  Manabu MIZUNO

IPC: G02F1/1362 ,  G02F1/137 ,  G02F1/1335 ,  G02F1/1334 ,  G02F1/1368 ,  G02F1/1333

CPC classification number: G02F1/136209 ,  G02F1/133345 ,  G02F1/1334 ,  G02F1/133512 ,  G02F1/133553 ,  G02F1/133615 ,  G02F1/1339 ,  G02F1/13394 ,  G02F1/136286 ,  G02F1/1368 ,  G02F1/137 ,  G02F2001/13398 ,  G02F2001/13756 ,  G02F2201/121 ,  G02F2201/123

Abstract: A display device according to one aspect of the present invention includes a first substrate including a thin film transistor, a second substrate including a common electrode, an organic insulating layer arranged on the first substrate so as to overlap with the thin film transistor, and projecting from the first substrate toward the second substrate, and a conductive light shielding layer covering an upper surface and a side surface of the organic insulating layer, and electrically coupled with the common electrode, wherein the organic insulating layer and the light shielding layer hold a gap between the first substrate and the second substrate.

公开(公告)号：US20240393635A1

公开(公告)日：2024-11-28

申请号：US18670195

申请日：2024-05-21

Applicant: Japan Display Inc.

Inventor： Kasumi HASE ,  Koichi IGETA ,  Kentaro OKUYAMA

IPC: G02F1/1334 ,  G02F1/13357 ,  G02F1/1343 ,  G02F1/137

Abstract: According to an aspect, a display device includes: a first substrate; a second substrate facing the first substrate; a liquid crystal layer disposed between the first substrate and the second substrate; a light source disposed so that light is incident on a side surface of the first substrate or a side surface of the second substrate; a first electrode provided on the first substrate; and second electrodes provided on the second substrate. The liquid crystal layer includes polymer-dispersed liquid crystals including a polymer network formed in a mesh shape and liquid crystal molecules held in a dispersed manner in gaps of the polymer network. A plurality of first slits of the second electrodes that are provided for each pixel are arranged at predetermined intervals in a first direction, and the first slits extend in a second direction intersecting the first direction.

公开(公告)号：US20240393634A1

公开(公告)日：2024-11-28

申请号：US18670122

申请日：2024-05-21

Applicant: Japan Display Inc.

Inventor： Kasumi HASE ,  Koichi IGETA ,  Kentaro OKUYAMA

IPC: G02F1/1334 ,  G02F1/1339 ,  G02F1/1343

Abstract: According to an aspect, a method for manufacturing a display device includes: producing an array substrate in which first electrodes are formed on a first light-transmitting base member; producing a counter substrate in which a second electrode is formed on a second light-transmitting base member; forming a sealing portion on the array substrate or the counter substrate; dropping, inside the sealing portion, polymer-dispersed liquid crystals that contain photocrosslinkable monomers and liquid crystal molecules in gaps between the monomers; bonding the array substrate to the counter substrate, and forming a liquid crystal layer in which the polymer-dispersed liquid crystals have been dropped; and curing the liquid crystal layer by irradiating the liquid crystal layer with ultraviolet rays while a voltage is applied to the first and second electrodes. At the producing the counter substrate, projections of the second electrode that project from the second electrode toward the first electrodes are formed.