公开(公告)号：US12025895B2

公开(公告)日：2024-07-02

申请号：US18311300

申请日：2023-05-03

Applicant: Japan Display Inc.

Inventor： Daisuke Ito ,  Hideyuki Omori

IPC: G02F1/1362 ,  G02F1/1337 ,  G02F1/1343

CPC classification number: G02F1/136286 ,  G02F1/133707 ,  G02F1/133784 ,  G02F1/134363 ,  G02F1/134372 ,  G02F2201/52

Abstract: A liquid crystal display device includes: a plurality of scan lines and signal lines on one of a pair of substrates arranged to be opposed to each other with a liquid crystal layer sandwiched therebetween, the scan lines and signal lines extending in different directions; and an orientation film, pixel electrode, insulating layer and common electrode, the orientation film being rubbed in a rubbing direction having a given inclination with respect to a pixel arrangement direction. The pixel electrode is partitioned by the scan lines and signal lines and has subpixels made up of first and second regions. The first region has a plurality of slit-shaped openings having a given inclination in a first direction with respect to the rubbing direction. The second region has a plurality of slit-shaped openings having a given inclination in a second direction with respect to the rubbing direction.

公开(公告)号：US12025881B2

公开(公告)日：2024-07-02

申请号：US18224401

申请日：2023-07-20

Applicant: JAPAN DISPLAY INC.

Inventor： Tenfu Nakamura ,  Kentaro Okuyama ,  Kojiro Ikeda

IPC: G02F1/13357 ,  G02F1/1334 ,  G02F1/1335 ,  G02F1/1362 ,  H01L27/12

CPC classification number: G02F1/133615 ,  G02F1/1334 ,  G02F1/133616 ,  G02F1/136286 ,  H01L27/124

Abstract: According to one embodiment, a display device including a liquid crystal layer containing strip-like polymers and liquid crystal molecules, a third transparent substrate, and a transparent layer disposed on the third transparent substrate and having a refractive index lower than that of the third transparent substrate, wherein the transparent layer includes strip portions which include first and second end portions, and a middle portion, the first end portion has a first width greater than a width of the middle portion, the second end portion has a second width greater than the width of the middle portion, and first wiring lines overlap the strip portions, respectively and extend in a same direction.

公开(公告)号：US12025827B2

公开(公告)日：2024-07-02

申请号：US18336054

申请日：2023-06-16

Applicant: Japan Display Inc.

Inventor： Koji Fujisawa ,  Ken Kagabu ,  Hiroaki Kijima ,  Ken Onoda

IPC: F21V8/00

CPC classification number: G02B6/0076 ,  G02B6/0053 ,  G02B6/0055

Abstract: According to one embodiment, an illumination device includes a first light guide, a second light guide and a plurality of light sources. The first light guide includes a first main surface, a second main surface facing the first main surface, and a first side surface connected to the second light guide. The first side surface further includes a first connection surface and a second connection surface. The first connection surface extends from an end portion of the first main surface to the second main surface and obliquely extends so as to move away from the second side surface. The second connection surface perpendicularly extends from an end portion of the first connection surface to an end portion of the second main surface.

公开(公告)号：US12022682B2

公开(公告)日：2024-06-25

申请号：US17894257

申请日：2022-08-24

Applicant: Japan Display Inc.

Inventor： Masamitsu Furuie

IPC: H10K50/844 ,  H10K50/842 ,  H10K59/122 ,  H10K59/124 ,  G02F1/1333

CPC classification number: H10K50/844 ,  H10K50/8426 ,  H10K59/122 ,  H10K59/124 ,  B32B2457/206 ,  G02F1/133311 ,  G02F2201/501

Abstract: A light-emitting element display device includes: a display area which has an organic insulating layer that is made of an organic insulating material; a peripheral circuit area which is disposed around the display area and which has the organic insulating layer; and a blocking area that is formed between the display area and the peripheral circuit area. The blocking area includes: a first blocking area configured by only one or a plurality of inorganic material layers between an insulating base substrate and an electrode layer which covers the display area and is formed continuously from the display area, and which configures one of two electrodes for allowing the light emitting area to emit the light; and a second blocking area including a plurality of layers configuring the first blocking area, and a light emitting organic layer.

公开(公告)号：US20240206201A1

公开(公告)日：2024-06-20

申请号：US18544861

申请日：2023-12-19

Applicant: Japan Display Inc.

Inventor： Keiichi SAITO

IPC: H10K39/32 ,  G06V10/141 ,  G06V40/13

CPC classification number: H10K39/32 ,  G06V10/141 ,  G06V40/1318

Abstract: According to an aspect, a detection device includes: a plurality of organic photodiodes arranged in a detection area; a plurality of capacitive elements each coupled in parallel to a corresponding organic photodiode of the organic photodiodes; an analog front-end (AFE) circuit configured to read an electric charge amount stored in each of the capacitive elements to acquire a detection value of each of the organic photodiodes; a power supply circuit configured to supply a power supply potential to collectively apply a reverse bias to the organic photodiodes; and a control circuit configured to control the power supply potential. The organic photodiodes each includes: an active layer; an upper electrode provided with an upper buffer layer interposed between the upper electrode and the active layer; and a lower electrode provided with a lower buffer layer interposed between the lower electrode and the active layer.

公开(公告)号：US12015032B2

公开(公告)日：2024-06-18

申请号：US18136693

申请日：2023-04-19

Applicant: Japan Display Inc.

Inventor： Yoshitaka Ozeki ,  Nobutaka Ozaki ,  Koshiro Moriguchi

IPC: G02F1/1343 ,  G02F1/1333 ,  G02F1/1362 ,  G02F1/1368 ,  H01L27/12

CPC classification number: H01L27/1225 ,  G02F1/136213 ,  G02F1/136227 ,  G02F1/136286 ,  G02F1/1368 ,  H01L27/124 ,  G02F1/133345 ,  G02F1/133357 ,  G02F1/134309

Abstract: A display device includes a first transistor having an oxide semiconductor layer, a gate wiring opposite the oxide semiconductor layer, a gate insulating layer between the semiconductor layer and the gate wiring, a first insulating layer including at least one insulating layer having a first contact hole outside the gate wiring, a planarization film having a second contact hole overlapping the first contact hole, a first transparent conductive layer including an area overlapping the gate wiring, a second insulating layer covering a side of the second contact hole, a second transparent conductive layer in contact with the oxide semiconductor layer through the first and second contact hole, a first resin filling the first and second contact hole coated by the second transparent conductive layer, and a third transparent conductive layer on the second transparent conductive layer and the first resin.

公开(公告)号：US12014016B2

公开(公告)日：2024-06-18

申请号：US17950232

申请日：2022-09-22

Applicant: Japan Display Inc.

Inventor： Koichi Miyasaka ,  Yoshikatsu Imazeki ,  Yoichi Kamijo ,  Shuichi Osawa ,  Yoshifumi Kamei

IPC: G06F3/044 ,  G01R27/26

CPC classification number: G06F3/0447 ,  G01R27/2605

Abstract: According to one embodiment, a detection device includes a base, a sensor electrode provided on the base, the sensor electrode bending in a planar view, an insulating layer on the sensor electrode, and a projection provided on the insulating layer, wherein the sensor electrode is apart from the projection in a planar view.

公开(公告)号：US12013613B2

公开(公告)日：2024-06-18

申请号：US18351788

申请日：2023-07-13

Applicant: Japan Display Inc.

Inventor： Kojiro Ikeda ,  Tenfu Nakamura ,  Kentaro Okuyama ,  Zhengyi Gou ,  Hisanori Kawakami

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

CPC classification number: G02F1/133615 ,  G02F1/136286 ,  G02F1/1368

Abstract: According to one embodiment, a display device includes a first substrate, a second substrate, a liquid crystal layer, a first light guide element and a light-emitting element. The liquid crystal layer contains stringy polymers and liquid crystal molecules. The first light guide element includes a third transparent substrate including a side surface and a main surface, and a transparent layer disposed on the main surface and having a refractive index lower than that of the third transparent substrate. The light-emitting element opposes the side surface, and the third transparent substrate is adhered to the second transparent substrate while interposing the transparent layer therebetween. The light-emitting element is disposed on the second transparent substrate.

公开(公告)号：US20240196647A1

公开(公告)日：2024-06-13

申请号：US18534714

申请日：2023-12-11

Applicant: Japan Display Inc.

Inventor： Shinichi KAWAMURA

IPC: H10K59/12 ,  H10K71/10 ,  H10K71/20 ,  H10K71/60

CPC classification number: H10K59/1201 ,  H10K71/10 ,  H10K71/231 ,  H10K71/60

Abstract: According to one embodiment, a manufacturing method includes forming a lower electrode, forming a rib, and forming a partition including a conductive bottom portion, an insulating stem portion, and a top portion. The formation of the partition includes forming a first layer including a layer of a conductive first material, forming a second layer including a layer of an insulating second material, forming a third layer including a layer of a third material, forming the top, stem and bottom portions by first to third etching processes, respectively. An etching rate of the third material in the second etching process is lower than an etching rate of the second material in the second etching process.

公开(公告)号：US20240192816A1

公开(公告)日：2024-06-13

申请号：US18504855

申请日：2023-11-08

Applicant: Japan Display Inc.

Inventor： Yuto KAKINOKI

IPC: G06F3/044 ,  G02F1/1333

CPC classification number: G06F3/0446 ,  G02F1/13338

Abstract: Disclosed is a sensor module including a first substrate having an insulating property, a plurality of sensor electrodes over the first substrate, a second substrate having an insulating property over the plurality of sensor electrodes, at least one charge-dispersing film over the second substrate, and a third substrate over the at least one charge-dispersing film. The at least one charge-dispersing film may consist of one charge-dispersing film overlapping all of the plurality of sensor electrodes.