公开(公告)号：US20240184177A1

公开(公告)日：2024-06-06

申请号：US18428228

申请日：2024-01-31

Applicant: Japan Display Inc.

Inventor： Yohei YAMAGUCHI ,  Arichika ISHIDA ,  Hidekazu MIYAKE ,  Hiroto MIYAKE ,  Isao SUZUMURA

IPC: G02F1/1368 ,  G02F1/1343 ,  G02F1/1362 ,  H01L27/12 ,  H01L29/423 ,  H01L29/786

CPC classification number: G02F1/1368 ,  G02F1/134309 ,  G02F1/13439 ,  G02F1/136209 ,  G02F1/136227 ,  H01L27/1225 ,  H01L29/78633 ,  H01L29/7869 ,  G02F1/136218 ,  G02F1/13685 ,  G02F2202/10 ,  H01L29/42384

Abstract: According to one embodiment, a semiconductor device includes an insulating substrate, a first metal layer on the insulating substrate, a first insulating layer on the insulating substrate and the first metal layer, a semiconductor layer on the first insulating layer, a second insulating layer on the semiconductor layer and the first insulating layer, a second metal layer on the second insulating layer, and a first electrode and a second electrode which are electrically connected to the semiconductor layer. The first metal layer overlaps the second metal layer. A third metal layer contacts a top surface of the second metal layer and a top surface of the first metal layer.

公开(公告)号：US12004402B2

公开(公告)日：2024-06-04

申请号：US17474228

申请日：2021-09-14

Applicant: Japan Display Inc.

Inventor： Hiroshi Tabatake ,  Tetsuo Morita ,  Yasuhiro Ogawa

IPC: H10K59/35 ,  G09F9/30 ,  G09F9/302 ,  G09G3/3208 ,  G09G3/3233 ,  H05B33/12 ,  H10K50/00 ,  H10K59/121

CPC classification number: H10K59/353 ,  G09G3/3208

Abstract: A drive circuit includes a holding capacitor, an element capacitor, and an additional capacitor interposed between one of the source and the drain, and one of the high-potential line and the low-potential line. The drive circuit configured to drive the first light emitter includes a first element capacitor as the element capacitor and a first additional capacitor as the additional capacitor. The driving circuit configured to drive the second light emitter includes a second element capacitor as the element capacitor and a second additional capacitor as the additional capacitor. The first element capacitor is larger in capacitance than the second element capacitor. The first additional capacitor is smaller in capacitance than the second additional capacitor.

公开(公告)号：US12002283B2

公开(公告)日：2024-06-04

申请号：US17949824

申请日：2022-09-21

Applicant: Japan Display Inc.

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

IPC: G06V40/13 ,  G06F3/044

CPC classification number: G06V40/1306 ,  G06F3/0445 ,  G06F3/0446

Abstract: A detection device includes a substrate, a plurality of drive electrodes disposed at the substrate, each extending in a first direction, and arranged in a second direction intersecting the first direction, and a plurality of detection electrodes opposed to the drive electrodes, each extending in the second direction, and arranged in the first direction. Each of the drive electrodes and the detection electrodes has a plurality of superimposed portions and a connecting portion connecting the superimposed portions, one of the superimposed portions of one of the drive electrodes and one of the superimposed portions of one of the detection electrodes are superimposed over each other and extend linearly in a same direction, and in a planar view from a direction perpendicular to the substrate, some of the superimposed portions and some of the connection portions form a first closed region closed annularly.

公开(公告)号：US12001108B2

公开(公告)日：2024-06-04

申请号：US18215958

申请日：2023-06-29

Applicant: Japan Display Inc.

Inventor： Yoshitaka Ozeki

IPC: G02F1/1368 ,  G02F1/1333 ,  G02F1/1343 ,  G02F1/1362 ,  H01L27/12 ,  H01L29/786

CPC classification number: G02F1/1368 ,  G02F1/133345 ,  G02F1/134336 ,  G02F1/13439 ,  G02F1/136209 ,  H01L27/1225 ,  H01L27/124 ,  H01L29/78633 ,  H01L29/7869 ,  G02F2201/52

Abstract: A display device includes a plurality of pixels arranged in a matrix on a substrate along a first direction and a second direction intersecting the first direction. Each of the plurality of pixels includes a transistor, a first transparent electrode located over the transistor and electrically connected to the transistor, a second transparent electrode located over the first transparent electrode and electrically connected to the first transparent electrode via an opening, an insulating layer located over the second transparent electrode, a third transparent electrode located over the insulating layer; and a metal layer in contact with the third transparent electrode. The opening overlaps a gate electrode of the transistor. At least a part of the metal layer is provided in the opening and overlaps the gate electrode. The metal layer extends along the first direction and is commonly provided in the pixels arranged in the first direction.

公开(公告)号：US12001089B2

公开(公告)日：2024-06-04

申请号：US18336246

申请日：2023-06-16

Applicant: Japan Display Inc.

Inventor： Toshiharu Matsushima

IPC: G02F1/13 ,  G02F1/133 ,  G02F1/1335 ,  B60K35/00 ,  B60K35/65 ,  B60K35/81

CPC classification number: G02F1/1323 ,  G02F1/13318 ,  G02F1/133528 ,  B60K35/00 ,  B60K35/658 ,  B60K35/81

Abstract: According to one embodiment, a display system includes an external light sensor, a display panel, a viewing angle control panel including a liquid crystal layer containing liquid crystal molecules twist-aligned, configured such that a drive voltage applied to the liquid crystal layer is controlled based on an external light intensity detected by the external light sensor, and a polarization axis rotation element disposed between the viewing angle control panel and the display panel. The drive voltage when the external light intensity is less than a threshold value is greater than the drive voltage when the external light intensity is greater or equal to than the threshold value.

公开(公告)号：US20240176196A1

公开(公告)日：2024-05-30

申请号：US18508246

申请日：2023-11-14

Applicant: Japan Display Inc.

Inventor： Hajime WATAKABE ,  Masashi TSUBUKU ,  Toshinari SASAKI ,  Takaya TAMARU

IPC: G02F1/1362 ,  G02F1/1368 ,  G06F3/044

CPC classification number: G02F1/136227 ,  G02F1/136286 ,  G02F1/13685 ,  G06F3/044

Abstract: A display device includes a plurality of pixel electrodes each connected to a semiconductor device, a plurality of common electrodes each disposed opposite to a part of the plurality of pixel electrodes, and a plurality of common wirings each connected to the plurality of common electrodes. The semiconductor device includes an oxide semiconductor layer having a polycrystalline structure, and at least a part of each common wiring is composed of the oxide semiconductor layer. Each common electrode may be located across a plurality of pixel electrodes.

公开(公告)号：US20240176074A1

公开(公告)日：2024-05-30

申请号：US18430928

申请日：2024-02-02

Applicant: Japan Display Inc. ,  OSAKA UNIVERSITY

Inventor： Koichi IGETA ,  Shinichiro OKA ,  Yasushi TOMIOKA ,  Junji KOBASHI ,  Hiroyuki YOSHIDA

IPC: G02B6/27

CPC classification number: G02B6/2726

Abstract: According to one embodiment, a liquid crystal optical element includes an optical waveguide including a first main surface and a second main surface opposed to the first main surface, an alignment film disposed on the second main surface, a liquid crystal layer which overlaps the alignment film, which includes cholesteric liquid crystals, and which reflects at least part of light incident through the optical waveguide toward the optical waveguide, and a transparent first protective layer which overlaps the liquid crystal layer, and which is formed of a water-soluble polymer or a fluorine-based resin.

公开(公告)号：US11996050B2

公开(公告)日：2024-05-28

申请号：US17184799

申请日：2021-02-25

Applicant: Japan Display Inc.

Inventor： Masahiro Kubota

IPC: G09G3/3258 ,  G09G3/3233

CPC classification number: G09G3/3258 ,  G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2310/08 ,  G09G2320/0247 ,  G09G2340/0435

Abstract: A display device includes a display area including a plurality of pixels arrayed next to one another in a first direction and in a second direction that is different from the first direction, and a control circuit, wherein each of the pixels includes a light-emitting element configured to emit light by a current flowing therethrough, a drive transistor, a shut-off transistor, and a holding capacitance.

公开(公告)号：US11994780B2

公开(公告)日：2024-05-28

申请号：US18074800

申请日：2022-12-05

Applicant: Japan Display Inc.

Inventor： Naoyuki Obinata ,  Daichi Hosokawa ,  Masakatsu Kitani

IPC: G02F1/1362 ,  G02F1/1333 ,  G02F1/1343 ,  G06F3/041 ,  G06F3/044

CPC classification number: G02F1/136286 ,  G02F1/13338 ,  G02F1/134336 ,  G06F3/0412 ,  G06F3/0416 ,  G06F3/04164 ,  G06F3/0443

Abstract: According to one embodiment, a display device includes a first electrode, a second electrode, a first wiring electrically connected to the first electrode, a second wiring electrically connected to the second electrode, and a controller electrically connected to the first wiring and the second wiring, wherein the first electrode and the second electrode are located in a display area, the first electrode is connected to the first wiring in a position away from the controller than the second electrode, the second electrode is connected to the second wiring in a position closer to the controller than the first electrode, and a number of the first wiring being greater than a number of the second wiring.

公开(公告)号：US11988933B2

公开(公告)日：2024-05-21

申请号：US17950104

申请日：2022-09-22

Applicant: Japan Display Inc.

Inventor： Toshiharu Matsushima

IPC: G02F1/137 ,  B60K35/00 ,  G02F1/01 ,  G02F1/1335 ,  G02F1/13363 ,  G02F1/1347

CPC classification number: G02F1/137 ,  G02F1/0136 ,  G02F1/133531 ,  G02F1/133638 ,  G02F1/1347 ,  B60K35/00 ,  B60K2370/25 ,  B60K2370/33

Abstract: According to one embodiment, a display device includes a display panel configured to modulate a first polarization component, a first viewing angle control panel including a first liquid crystal layer containing twisted liquid crystal molecules, a second viewing angle control panel including a second liquid crystal layer containing twisted liquid crystal molecules, and a polarization axis rotation element provided between the first viewing angle control panel and the display panel. A second polarization axis of a second polarization component which passed through the first viewing angle control panel is different from a first polarization axis of the first polarization component. The polarization axis rotation element is configured to rotate the second polarization axis.