公开(公告)号：US12225806B2

公开(公告)日：2025-02-11

申请号：US17451502

申请日：2021-10-20

Applicant: Japan Display Inc.

Inventor： Sho Yanagisawa ,  Tetsuo Morita ,  Kenji Harada ,  Hiroshi Tabatake ,  Hideyuki Takahashi

IPC: H01L27/32 ,  H10K59/122 ,  H10K59/131 ,  H10K59/88

Abstract: According to one embodiment, a display device includes a substrate, first and second insulating layers, first and second pixel electrodes, first and second organic layers, first and second feed lines, first and second partitions, and a common electrode including first and second parts covering the first and second organic layers. The first organic layer is between the partitions. The second feed line and the second partition are located between the organic layers. The partitions are shaped such that a width of an upper part is greater than a width of a lower part. The first part is in contact with the first feed line between the first partition and the first organic layer.

公开(公告)号：US20250048880A1

公开(公告)日：2025-02-06

申请号：US18775347

申请日：2024-07-17

Applicant: Japan Display Inc.

Inventor： Nobuto MANAGAKI

IPC: H10K59/70 ,  H10K59/12 ,  H10K59/35

Abstract: The display device includes at least one pixel having a first sub-pixel, a second sub-pixel, and a third sub-pixel. The first sub-pixel and the second sub-pixel respectively include red-emissive and green-emissive organic electroluminescence elements. The third sub-pixel includes a blue-emissive inorganic electroluminescence element. Each of the organic electroluminescence elements includes an anode, a cathode, and an organic electroluminescence layer between the anode and the cathode. The inorganic electroluminescence element includes an anode, a cathode, and an inorganic electroluminescence layer electrically connected to the anode and the cathode.

公开(公告)号：US12219832B2

公开(公告)日：2025-02-04

申请号：US17656891

申请日：2022-03-29

Applicant: Japan Display Inc.

Inventor： Takumi Sano

IPC: H10K59/131 ,  H10K77/10 ,  H10K102/00

Abstract: According to one embodiment, a flexible substrate includes an insulating base including first and second strip portions, and island-shaped portions, electrical elements, scanning lines each extending while overlapping the first strip portions, signal lines each extending while overlapping the second strip portions, connection wiring lines each extending while overlapping the second strip portions, a scanning line driver, a signal line driver, a support body including a first side edge, and scanning lines are connected to different connection wiring lines on different island-shaped portion, and the scanning line driver and the signal line driver are located on a side of the first side edge.

公开(公告)号：US12219702B2

公开(公告)日：2025-02-04

申请号：US17941761

申请日：2022-09-09

Applicant: Japan Display Inc.

Inventor： Kenichi Takemasa ,  Yasushi Nakano

IPC: H05K1/11

Abstract: A wiring substrate includes a substrate, an insulating film stacked on the substrate, an anode pad stacked on a first surface of the insulating film and electrically coupled to an anode of an inorganic light-emitting diode, a cathode pad stacked on the first surface of the insulating film and electrically coupled to a cathode of the inorganic light-emitting diode, and an auxiliary pad provided to the first surface of the insulating film and having electrical conductivity. The auxiliary pad is disposed in a floating state near an end of the anode pad and the cathode pad.

公开(公告)号：US12218178B2

公开(公告)日：2025-02-04

申请号：US17481371

申请日：2021-09-22

Applicant: Japan Display Inc.

Inventor： Masanobu Ikeda ,  Hidemasa Yamaguchi

IPC: H01L27/15 ,  H01L33/04 ,  H01L33/06 ,  H01L33/10 ,  H01L33/58 ,  H01L33/62

Abstract: A display device includes a substrate; a plurality of pixels provided on the substrate; and a plurality of inorganic light emitting elements provided on each of the pixels. The inorganic light emitting elements each include a semiconductor substrate having a first face facing the substrate and a second face provided in a convex shape on a side opposite from the first face; and a plurality of semiconductor nanowires provided on the first face, the semiconductor nanowires extending in a direction perpendicular to the first face.

公开(公告)号：US12216373B2

公开(公告)日：2025-02-04

申请号：US18630538

申请日：2024-04-09

Applicant: Japan Display Inc.

Inventor： Toshiharu Matsushima

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

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.

公开(公告)号：US20250035992A1

公开(公告)日：2025-01-30

申请号：US18912125

申请日：2024-10-10

Applicant: Japan Display Inc.

Inventor： Akio OTA

IPC: G02F1/1343 ,  G02F1/1333 ,  G02F1/1335 ,  G02F1/1337 ,  G02F1/1362

Abstract: A transverse electric field type liquid crystal display panel includes a pair of substrates opposed with a liquid crystal layer interposed therebetween. A plurality of sub-pixels having at least one curved portion in a display area are provided in a matrix on one side of the pair of substrates, and a pair of electrodes having at least one curved portion are formed in the plurality of sub-pixels. A light shield layer shielding a non-display area positioned on an outer peripheral side of the display area and between the plurality of sub-pixels is formed on the other side of the pair of substrates. The light shield layer of the non-display area is formed in a shape in which the outermost peripheral side of the display area is rectangular.

公开(公告)号：US20250035294A1

公开(公告)日：2025-01-30

申请号：US18911923

申请日：2024-10-10

Applicant: Japan Display Inc.

Inventor： Daisuke HAMANO

IPC: F21V21/22 ,  F21V21/30

Abstract: According to an aspect, a light adjustment device includes: first, second, and third frames and light adjustment panels. The first frame, the second frame, and the third frame have annular shapes and are stacked in a first direction. The first frame includes a first hook that protrudes to the one side in the first direction. The second frame includes a first cutout into which the first hook is hooked, and a second hook that protrudes to the one side in the first direction. The third frame includes a second cutout into which the second hook is hooked. The first hook does not overlap the second hook when viewed in the first direction. One of the light adjustment panels is disposed between the first frame and the second frame, and another of the light adjustment panels is disposed between the second frame and the third frame.

公开(公告)号：US12210248B2

公开(公告)日：2025-01-28

申请号：US17708166

申请日：2022-03-30

Applicant: Japan Display Inc.

Inventor： Shunichi Kimura ,  Toshiharu Matsushima ,  Shinichi Komura

IPC: G02F1/1343 ,  G02F1/1335 ,  G02F1/1347

Abstract: The purpose of the present invention is to realize a high contrast display with liquid crystal display device using a liquid crystal light valve. A representative structure is as follows. A liquid crystal display device includes a liquid crystal display panel, a backlight, and a liquid crystal light valve; the light valve includes a plurality of first electrodes extending in a first direction and formed on the first substrate; a first insulating film is formed on the first electrode; a plurality of second electrodes are formed in a matrix at predetermined intervals on the first insulating film; a second insulating film is formed on the second electrodes; a plurality of third electrodes extending in a second direction are formed on the second insulating film; the liquid crystal is sandwiched between the third electrodes and the second substrate; the predetermined interval between the second electrodes is 2 to 10 μm.

公开(公告)号：US20250031548A1

公开(公告)日：2025-01-23

申请号：US18773746

申请日：2024-07-16

Applicant: Japan Display Inc.

Inventor： Hiroshi TABATAKE

IPC: H10K59/40 ,  G09G3/00 ,  H10K59/12 ,  H10K59/122 ,  H10K59/131 ,  H10K59/18 ,  H10K71/00 ,  H10K71/70

Abstract: According to one embodiment, a motherboard includes inspection pads for adjacent short-circuiting inspection. The motherboard includes a first high-resistance wiring line connecting the inspection pads to each other, a first cut line set to cut out a plurality of display devices from the motherboard, and a second cut line set along an outline shape of each single display device. The inspection pads are each located between the first cut line and the second cut line. The first high-resistance wiring line is disposed across the first cut line and cut along the first cut line before the inspection using the inspection pads. The inspection pads are not connected to each other by the first high-resistance wiring line at the time of the inspection.