公开(公告)号：US12253763B2

公开(公告)日：2025-03-18

申请号：US18632741

申请日：2024-04-11

Applicant: Japan Display Inc.

Inventor： Kentaro Okuyama ,  Koji Kitamura ,  Tenfu Nakamura

IPC: G02F1/1339 ,  G02F1/1333 ,  G02F1/1362 ,  G02F1/1368 ,  G02F1/13357

Abstract: According to an aspect, a display device includes: a display panel including an array substrate, a counter substrate, a liquid crystal layer between the array substrate and the counter substrate, and spacers projecting from the counter substrate toward the array substrate; a light-transmitting glass base member bonded to the display panel; and a light source that includes a light guide provided along a side surface of the array substrate, a side surface of the counter substrate, or a side surface of the glass base member, and light emitters facing the light guide. The array substrate includes: signal lines; scan lines; and switching elements coupled to the scan lines and the signal lines. The spacers are arranged in positions facing the respective switching elements and are provided with adhesion layers provided such that the counter substrate and the array substrate adhere to each other.

公开(公告)号：US12242149B2

公开(公告)日：2025-03-04

申请号：US18638803

申请日：2024-04-18

Applicant: Japan Display Inc.

Inventor： Tatsunori Muramoto ,  Kentaro Kawai ,  Yoshihide Ohue ,  Kentaro Okuyama ,  Tenfu Nakamura ,  Koji Kitamura

IPC: G02F1/1343 ,  G02F1/1334 ,  G02F1/1335 ,  G02F1/1339

Abstract: According to one embodiment, a display device includes a first substrate, a second substrate, a sealant formed bonding the first substrate with the second substrate, a liquid crystal layer surrounded by the sealant, and a light emitting module. The sealant includes a first portion, a second portion opposed to the first portion with the liquid crystal layer sandwiched therebetween, an inlet formed in the second portion, and a filling material filled in the inlet. The liquid crystal layer is arranged over a display area where an image is displayed, a first area between the display area and the first portion, and a second area between the display area and the second portion, in plan view. A first width of the first area is larger than a width of the second area.

公开(公告)号：US12189228B2

公开(公告)日：2025-01-07

申请号：US18330670

申请日：2023-06-07

Applicant: Japan Display Inc.

Inventor： Kentaro Okuyama

IPC: G02F1/1334 ,  G02F1/13357 ,  G06F3/14 ,  G09G3/34 ,  G09G3/36

Abstract: According to one embodiment, a display device includes a first display panel, and a polarizer opposed to the first display panel and having a transmission axis for transmitting linearly polarized light. The first display panel includes a first substrate, a second substrate opposed to the first substrate, and a first liquid crystal layer held between the first substrate and the second substrate and including streak-like polymers and liquid crystal molecules. An extension direction of the polymers is substantially orthogonal to the transmission axis.

公开(公告)号：US12153302B2

公开(公告)日：2024-11-26

申请号：US18544667

申请日：2023-12-19

Applicant: Japan Display Inc.

Inventor： Yudai Numata ,  Kentaro Okuyama

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

Abstract: According to one embodiment, a display device includes a first substrate, a second substrate including a first end portion and a second end portion located at a position different from the first end portion, a polymer dispersed liquid crystal layer disposed between the first substrate and the second substrate, a light source device located above the first substrate and disposed along the first end portion, and a light-shielding member disposed on at least a part of the second end portion.

公开(公告)号：US11988915B2

公开(公告)日：2024-05-21

申请号：US18350797

申请日：2023-07-12

Applicant: Japan Display Inc.

Inventor： Tatsunori Muramoto ,  Kentaro Kawai ,  Yoshihide Ohue ,  Kentaro Okuyama ,  Tenfu Nakamura ,  Koji Kitamura

IPC: G02F1/1343 ,  G02F1/1334 ,  G02F1/1335 ,  G02F1/1339

CPC classification number: G02F1/1334 ,  G02F1/133512 ,  G02F1/1339 ,  G02F1/134309

Abstract: According to one embodiment, a display device includes a first substrate, a second substrate, a sealant formed bonding the first substrate with the second substrate, a liquid crystal layer surrounded by the sealant, and a light emitting module. The sealant includes a first portion, a second portion opposed to the first portion with the liquid crystal layer sandwiched therebetween, an inlet formed in the second portion, and a filling material filled in the inlet. The liquid crystal layer is arranged over a display area where an image is displayed, a first area between the display area and the first portion, and a second area between the display area and the second portion, in plan view. A first width of the first area is larger than a width of the second area.

公开(公告)号：US11940687B2

公开(公告)日：2024-03-26

申请号：US18187321

申请日：2023-03-21

Applicant: Japan Display Inc.

Inventor： Tae Kurokawa ,  Kentaro Okuyama

IPC: G02F1/1335 ,  G02F1/1334 ,  G02F1/13357 ,  G02F1/1362 ,  G02F1/1333 ,  G02F1/1337 ,  G02F1/1343 ,  G02F1/1345

CPC classification number: G02F1/133512 ,  G02F1/1334 ,  G02F1/133553 ,  G02F1/133615 ,  G02F1/136209 ,  G02F1/136286 ,  G02F1/133345 ,  G02F1/133365 ,  G02F1/1337 ,  G02F1/134309 ,  G02F1/13452 ,  G02F2201/121 ,  G02F2201/123

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：US11914252B2

公开(公告)日：2024-02-27

申请号：US17884600

申请日：2022-08-10

Applicant: Japan Display Inc.

Inventor： Kentaro Okuyama

IPC: G02F1/1362 ,  G02F1/1368

CPC classification number: G02F1/136209 ,  G02F1/1368 ,  G02F1/136286

Abstract: According to one embodiment, a display device includes a first substrate, a second substrate, a liquid crystal layer located between the first substrate and the second substrate and containing a polymer and a liquid crystal molecule, and a light emitting module provided along a side surface of the second transparent substrate. At least one of the first substrate and the second substrate includes first light-shielding portions arranged in a first direction. When a width of each of the first light-shielding portions in the first direction is defined as Lx, and an interval of the adjacent first light-shielding portions in the first direction is defined as Sx, a duty ratio Dx shown by Lx/(Sx+Lx) is less than or equal to 0.2.

公开(公告)号：US11835830B2

公开(公告)日：2023-12-05

申请号：US17727021

申请日：2022-04-22

Applicant: Japan Display Inc.

Inventor： Hiroki Sugiyama ,  Yoshihide Ohue ,  Manabu Mizuno ,  Kentaro Okuyama

IPC: G02F1/1333 ,  G02F1/1362 ,  G02F1/1368

CPC classification number: G02F1/136286 ,  G02F1/1368 ,  G02F1/136209

Abstract: A display device according to an aspect includes: an array substrate including a plurality of first light-transmitting electrodes each disposed in a corresponding one of pixels; a counter substrate including positions that overlap the first light-transmitting electrodes in a plan view and are provided with a second light-transmitting electrode; a liquid crystal layer including polymer-dispersed liquid crystals filled between the array substrate and the counter substrate; and at least one light emitter configured to emit light toward a side surface of the counter substrate. The array substrate includes, in each of the pixels, a third light-transmitting electrode and a conductive metal layer. The third light-transmitting electrode at least partially overlaps the first light-transmitting electrode in the plan view with an inorganic insulating layer interposed therebetween, and the conductive metal layer is stacked on the third light-transmitting electrode.

公开(公告)号：US11782306B2

公开(公告)日：2023-10-10

申请号：US16923707

申请日：2020-07-08

Applicant: Japan Display Inc.

Inventor： Hiroki Sugiyama ,  Kentaro Okuyama ,  Manabu Mizuno

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

CPC classification number: G02F1/133553 ,  G02F1/1334 ,  G02F1/136209 ,  G02F1/136286

Abstract: According to an aspect, a display device includes: a first light-transmitting substrate; a second light-transmitting substrate disposed so as to face the first light-transmitting substrate; a liquid crystal layer comprising polymer dispersed liquid crystals between the first light-transmitting substrate and the second light-transmitting substrate; and a multilayered film on an outer surface or surfaces of at least one of the first light-transmitting substrate and the second light-transmitting substrate, the multilayered film being configured to reflect light from the first light-transmitting substrate or the second light-transmitting substrate, and absorb light from outside the first light-transmitting substrate or the second light-transmitting substrate.

公开(公告)号：US11747544B2

公开(公告)日：2023-09-05

申请号：US18073012

申请日：2022-12-01

Applicant: Japan Display Inc.

Inventor： Yudai Numata ,  Kentaro Okuyama

IPC: F21V8/00 ,  G02F1/1334 ,  G02F1/1339

CPC classification number: G02B6/005 ,  G02B6/0091 ,  G02F1/1339 ,  G02F1/13347

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.