公开(公告)号：US20230235863A1

公开(公告)日：2023-07-27

申请号：US18099354

申请日：2023-01-20

Applicant: Japan Display Inc.

Inventor： Takashi OTA ,  Nobuyuki SUZUKI ,  Makoto HASEGAWA ,  Masafumi OKADA

IPC: F21K9/68 ,  F21K9/69 ,  F21V5/04 ,  F21V7/00

CPC classification number: F21K9/68 ,  F21K9/69 ,  F21V5/04 ,  F21V7/0066 ,  F21Y2115/10

Abstract: A lighting device including a first unit and a second unit, the first unit including: a first funnel shaped reflector having a first neck, a first opening, a first reflecting surface and a first light axis, a first LED emitting a first color disposed on the first neck, a first liquid crystal lens disposed at the first opening, a second unit including: a second funnel shaped reflector having a second neck, a second opening, a second reflecting surface and a second light axis, a second LED emitting a second color disposed on the second neck, a second liquid crystal lens disposed at the second opening; a length h1 of the first funnel shaped reflector is same as a length of the second funnel shaped reflector, and a diameter d1 of the first opening is same as a diameter of the second opening, and h1/d1 is two or more.

公开(公告)号：US11709566B2

公开(公告)日：2023-07-25

申请号：US17588522

申请日：2022-01-31

Applicant: Japan Display Inc.

Inventor： Koji Ishizaki ,  Hayato Kurasawa ,  Takeo Koito

IPC: G06F3/041 ,  G06F3/044 ,  G06F3/047

CPC classification number: G06F3/04166 ,  G06F3/044 ,  G06F3/047 ,  G06F3/0416 ,  G06F3/0445 ,  G06F3/0446 ,  G06F2203/04103 ,  G06F2203/04108 ,  G06F2203/04112

Abstract: A touch panel is disclosed herein. In an embodiment, the touch panel includes a substrate with first and second surfaces, a drive electrode facing the first surface, a plurality of touch detection electrodes facing the second surface, and a dummy electrode between adjacent touch detection electrodes. Each touch detection electrode includes a first conductive thin wire extending parallel to the first and second surfaces. The dummy electrode includes a second conductive thin wire extending along the first conductive thin wire. The first conductive thin wire includes a first bent portion and a second bent portion alternately arranged with the first conductive thin wire having a zigzag pattern. The second conductive thin wire includes a third bent portion and a slit that are alternately arranged. The third bent portion is arranged on a virtual straight line formed by virtually connecting the first bent portions of one first conductive thin wire.

公开(公告)号：US11709562B2

公开(公告)日：2023-07-25

申请号：US17117478

申请日：2020-12-10

Applicant: Japan Display inc.

Inventor： Chunche Ma ,  Hajime Akimoto

IPC: G06F3/041 ,  H01L27/12 ,  G06F3/04842 ,  G06F3/044

CPC classification number: G06F3/04164 ,  G06F3/044 ,  G06F3/0416 ,  G06F3/0445 ,  G06F3/0446 ,  G06F3/0447 ,  G06F3/04842 ,  H01L27/124 ,  H01L27/1218 ,  H01L27/1248 ,  G06F3/0412 ,  G06F3/0414 ,  G06F2203/04103 ,  G06F2203/04105

Abstract: A display device includes a flexible substrate, a plurality of TFTs, a first electrode arranged between a channel of one of the plurality of TFTs and the flexible substrate, at least one inorganic insulating film arranged between one of the plurality of TFTs and the first electrode, a second electrode arranged on the opposite side to the side where one of the plurality of TFTs is arranged with respect to the first electrode, and an organic insulating film arranged between the first electrode and the second electrode.

公开(公告)号：US11709390B2

公开(公告)日：2023-07-25

申请号：US17860387

申请日：2022-07-08

Applicant: Japan Display Inc.

Inventor： Chikyu Nakaoka ,  Masaaki Kabe

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

CPC classification number: G02F1/133504 ,  G02F1/133354 ,  G02F1/133512 ,  G02F1/133567 ,  G02F1/133602 ,  G02F1/133621 ,  G02F1/133528 ,  G02F2201/305 ,  G02F2202/28

Abstract: According to one embodiment, a display device includes a display panel that includes a display portion including pixels and a non-display portion including an opening, an illumination device, and a color separation element provided between the display panel and the illumination device. The color separation element includes a first element overlapping the pixel and a second element overlapping the opening, the first element separates illumination light from the illumination device into light of a plurality of colors and irradiates the pixel with the light, and the second element separates illumination light from the illumination device into light of a plurality of colors and irradiates the opening with the light.

公开(公告)号：US11709387B2

公开(公告)日：2023-07-25

申请号：US17720392

申请日：2022-04-14

Applicant: Japan Display Inc.

Inventor： Kentaro Okuyama

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

CPC classification number: G02F1/1334 ,  G02F1/133615 ,  G06F3/1423 ,  G09G3/3406 ,  G09G3/3611 ,  G02F2201/16 ,  G09G2300/023

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：US20230232694A1

公开(公告)日：2023-07-20

申请号：US18156410

申请日：2023-01-19

Applicant: Japan Display Inc.

Inventor： Hiroshi TABATAKE

IPC: H10K59/80 ,  H10K59/122

CPC classification number: H10K59/873 ,  H10K59/122

Abstract: According to one embodiment, a display device includes a substrate, an insulating layer above the substrate, a lower electrode above the insulating layer in a display area, an upper electrode facing the lower electrode, an organic layer provided in the display area and a surrounding area, and a first ridge in the surrounding area. The first ridge includes a lower portion, and an upper portion provided on the lower portion and including an end portion protruding from a side surface of the lower portion. At least part of the organic layer is divided by the first ridge in the surrounding area.

公开(公告)号：US11703968B2

公开(公告)日：2023-07-18

申请号：US17666640

申请日：2022-02-08

Applicant: Japan Display Inc.

Inventor： Hayato Kurasawa ,  Hiroshi Mizuhashi ,  Tadayoshi Katsuta

IPC: G06F3/046 ,  G06F3/044 ,  G09G3/36 ,  G06F3/041 ,  G09G3/34

CPC classification number: G06F3/0412 ,  G06F3/044 ,  G06F3/046 ,  G06F3/0418 ,  G06F3/0445 ,  G06F3/0446 ,  G06F3/04164 ,  G06F3/04166 ,  G09G3/344 ,  G09G3/3696 ,  G06F2203/04106 ,  G06F2203/04112 ,  G09G2300/0426 ,  G09G2310/0202 ,  G09G2310/068 ,  G09G2310/08

Abstract: A display device includes a substrate, first electrodes, lines, pixel electrodes, a display functional layer, a common electrode, second electrodes, and a controller. The first electrodes are opposed to the second electrodes with a space therebetween, and an insulating layer is provided between the common electrode and the first and second electrodes. During the display periods, in response to a control signal from the controller, the pixel electrodes are supplied with a pixel signal through the lines, and the common electrode is supplied with a common signal. During the sensing period, in response to the control signal from the controller, the lines are supplied with a first drive signal to generate a magnetic field. The first electrodes are supplied with a second drive signal to generate electrostatic capacitance between themselves and the second electrodes in response to the control signal from the controller, synchronously or asynchronously with the display periods.

公开(公告)号：US11703727B2

公开(公告)日：2023-07-18

申请号：US17546253

申请日：2021-12-09

Applicant: Japan Display Inc.

Inventor： Akira Yokogawa

IPC: G02F1/1333 ,  G02F1/1362 ,  G02F1/133 ,  G02F1/1345

CPC classification number: G02F1/136204 ,  G02F1/1345 ,  G02F1/13306 ,  G02F1/13452 ,  G02F1/133345 ,  G02F1/136286 ,  G02F2201/50

Abstract: According to one embodiment, a display device includes a first line extending in a first direction, an insulating layer covering the first line, a second line disposed on the insulating layer and extending in a second direction, and a drive circuit including an output line extending in the first direction and connected to the first line through a contact portion. The contact portion includes a first portion to which the first line is connected at a first position, and a second portion to which the output line is connected at a second position which is apart from the first position in the second direction, the second portion facing the first portion with the insulating layer interposed therebetween while being electrically connected to the first portion.

公开(公告)号：US20230225213A1

公开(公告)日：2023-07-13

申请号：US18152772

申请日：2023-01-11

Applicant: Japan Display Inc.

Inventor： Toshihiko ITOGA

IPC: H10N30/079 ,  H10N30/078 ,  H10N30/00

CPC classification number: H10N30/079 ,  H10N30/078 ,  H10N30/10516

Abstract: According to one embodiment, a method of manufacturing a piezoelectric element, includes forming lower electrodes on an insulating substrate, applying a precursor solution on the insulating substrate and the lower electrodes, drying the precursor solution by firing, thus forming a first precursor layer, patterning the first precursor layer into a shape of a plurality of islands located on the lower electrodes, respectively and crystallizing the island-shaped first precursor layer by firing, thus forming first piezoelectric layers.

公开(公告)号：US20230225180A1

公开(公告)日：2023-07-13

申请号：US18151486

申请日：2023-01-09

Applicant: Japan Display Inc.

Inventor： Hiraaki KOKAME ,  Toshifumi MIMURA ,  Kaichi FUKUDA

IPC: H10K71/20 ,  H10K59/12

CPC classification number: H10K71/231 ,  H10K59/1201 ,  H10K2102/351

Abstract: According to one embodiment, a method of manufacturing a display device includes preparing a processing substrate with a lower electrode, a rib, and a partition including a lower portion and an upper portion, forming a first organic layer and a second organic layer spaced apart from the first organic layer, forming a first upper electrode and a second upper electrode spaced apart from the first upper electrode, forming a sealing layer located on the first upper electrode and the second upper electrode, forming a resist covering a part of the sealing layer, performing anisotropic dry etching using the resist as a mask, performing isotropic dry etching using the resist as a mask, and removing the sealing layer exposed from the resist.