公开(公告)号：US11657775B2

公开(公告)日：2023-05-23

申请号：US17191332

申请日：2021-03-03

Applicant: Japan Display Inc.

Inventor： Kojiro Ikeda ,  Kentaro Okuyama ,  Masaaki Kabe

IPC: G09G3/20 ,  G09G3/36 ,  G02F1/1334

CPC classification number: G09G3/3607 ,  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：US11630351B2

公开(公告)日：2023-04-18

申请号：US17125025

申请日：2020-12-17

Applicant: Japan Display Inc.

Inventor： Yasushi Iwakabe ,  Nobuko Fukuoka ,  Kentaro Okuyama

IPC: G02F1/1339 ,  C08L33/08 ,  C08L63/00 ,  G02F1/1368

Abstract: A liquid crystal panel according to one embodiment includes a first substrate, a second substrate opposed to the first substrate, a sealing member bonding the first substrate and the second substrate, and a liquid crystal layer sealed between the first substrate and the second substrate by the sealing member. The sealing member includes a ten-hour half-life temperature of 95° C. or lower and an acrylic resin. The liquid crystal layer includes a macromolecular compound.

公开(公告)号：US11587519B1

公开(公告)日：2023-02-21

申请号：US17873677

申请日：2022-07-26

Applicant: Japan Display Inc.

Inventor： Takayuki Imai ,  Kentaro Okuyama

IPC: G09G3/36

Abstract: A display device includes: first and second substrates with a liquid crystal therebetween; pixel electrodes and a common electrode provided to the first or second substrate; a light source including first to third light sources; and an image processor generating a signal to be provided to each pixel based on an input image signal. A frame period includes a first subframe period in which the first light source is on, a second subframe period in which the second light source is on, a third subframe period in which the third light source is on, and a fourth subframe period in which one or more of the first to third light sources are on. The image processor divides a gradation value into two values smaller than the gradation value, allocates one of the two values to the fourth subframe period, and allocates the other value to the other first subframe period.

公开(公告)号：US11586087B2

公开(公告)日：2023-02-21

申请号：US17403000

申请日：2021-08-16

Applicant: Japan Display Inc.

Inventor： Kojiro Ikeda ,  Kentaro Okuyama ,  Tenfu Nakamura

IPC: G02F1/1362 ,  G02F1/1333 ,  G09G3/36

Abstract: According to one embodiment, a display device includes a liquid crystal layer between a first substrate and a second substrate. The first substrate includes a wiring line and a pixel electrode. The liquid crystal layer contains a stripe-shaped polymer extending in a first direction and a liquid crystal molecule. The liquid crystal layer contains a first polymer in an area overlapping the wiring line and a second polymer in an area overlapping the pixel electrode. The first polymer includes a first portion extending in a direction different from the first direction. The second polymer includes a second portion extending in a direction different from the first direction. A density of the first portion is higher than a density of the second portion.

公开(公告)号：US11543720B2

公开(公告)日：2023-01-03

申请号：US17403000

申请日：2021-08-16

Applicant: Japan Display Inc.

Inventor： Kojiro Ikeda ,  Kentaro Okuyama ,  Tenfu Nakamura

IPC: G02F1/1362 ,  G02F1/1333 ,  G09G3/36

Abstract: According to one embodiment, a display device includes a liquid crystal layer between a first substrate and a second substrate. The first substrate includes a wiring line and a pixel electrode. The liquid crystal layer contains a stripe-shaped polymer extending in a first direction and a liquid crystal molecule. The liquid crystal layer contains a first polymer in an area overlapping the wiring line and a second polymer in an area overlapping the pixel electrode. The first polymer includes a first portion extending in a direction different from the first direction. The second polymer includes a second portion extending in a direction different from the first direction. A density of the first portion is higher than a density of the second portion.

公开(公告)号：US20220121074A1

公开(公告)日：2022-04-21

申请号：US17565573

申请日：2021-12-30

Applicant: Japan Display Inc.

Inventor： Kentaro Okuyama ,  Yudai Numata

IPC: G02F1/1362 ,  G02F1/1334 ,  G02F1/1335

Abstract: According to one embodiment, a display device includes a first substrate, a second substrate and a liquid crystal layer. The first substrate includes a first insulating substrate, a scanning line, a signal line, a switching, and a pixel electrode. The liquid crystal layer includes a polymer in a shape of a streak and a liquid crystal molecule. The scanning line includes a conductive layer located between the first insulating substrate and the liquid crystal layer, and a first reflective layer located between the first insulating substrate and the conductive layer and having a reflectance higher than a reflectance of the conductive layer.

公开(公告)号：US11237422B2

公开(公告)日：2022-02-01

申请号：US17071079

申请日：2020-10-15

Applicant: Japan Display Inc.

Inventor： Yudai Numata ,  Kentaro Okuyama

IPC: G02F1/1334 ,  G02F1/1335 ,  G02F1/133 ,  F21V8/00 ,  G09G3/36 ,  G02F1/1343 ,  G02F1/13357

Abstract: According to one embodiment, a display device includes a display panel, a light emitting element, a light guide layer and a first optical layer. The display panel includes a first substrate, a second substrate opposed to the first substrate, and a polymer dispersed liquid crystal layer which is held between the first substrate and the second substrate and contains a polymer and a liquid crystal molecule. The light guide layer has a first surface opposed to the display panel, and an edge opposed to the light emitting element. The first optical layer is located between the display panel and the light guide layer. A refractive index of the first optical layer is lower than a refractive index of the light guide layer.

公开(公告)号：US11181784B2

公开(公告)日：2021-11-23

申请号：US16829113

申请日：2020-03-25

Applicant: Japan Display Inc.

Inventor： Kentaro Okuyama ,  Hiroki Sugiyama ,  Yoshihide Ohue ,  Yudai Numata

IPC: G02F1/1339 ,  G02F1/1334

Abstract: According to one embodiment, a display device including a first substrate having a first end portion, a second substrate facing the first substrate and having a second end portion separated from the first end portion, a liquid crystal layer located between the first substrate and the second substrate, a light-emitting element facing the second end portion, a first sealing member bonding the first substrate and the second substrate together, and a low refractive area located between the first substrate and the second substrate, located between the second end portion and the first sealing member in planar view, and containing a material having a refractive index lower than that of the second substrate.

公开(公告)号：US20210103168A1

公开(公告)日：2021-04-08

申请号：US17125025

申请日：2020-12-17

Applicant: Japan Display Inc.

Inventor： Yasushi Iwakabe ,  Nobuko Fukuoka ,  Kentaro Okuyama

IPC: G02F1/1339 ,  G02F1/1368 ,  C08L63/00 ,  C08L33/08

Abstract: A liquid crystal panel according to one embodiment includes a first substrate, a second substrate opposed to the first substrate, a sealing member bonding the first substrate and the second substrate, and a liquid crystal layer sealed between the first substrate and the second substrate by the sealing member. The sealing member includes a ten-hour half-life temperature of 95° C. or lower and an acrylic resin. The liquid crystal layer includes a macromolecular compound.

公开(公告)号：US10955714B2

公开(公告)日：2021-03-23

申请号：US16357500

申请日：2019-03-19

Applicant: Japan Display Inc.

Inventor： Kentaro Okuyama ,  Yudai Numata

IPC: G02F1/1362 ,  G02F1/1334 ,  G02F1/1335

Abstract: According to one embodiment, a display device includes a first substrate, a second substrate and a liquid crystal layer. The first substrate includes a first insulating substrate, a scanning line, a signal line, a switching, and a pixel electrode. The liquid crystal layer includes a polymer in a shape of a streak and a liquid crystal molecule. The scanning line includes a conductive layer located between the first insulating substrate and the liquid crystal layer, and a first reflective layer located between the first insulating substrate and the conductive layer and having a reflectance higher than a reflectance of the conductive layer.