公开(公告)号：US11796845B2

公开(公告)日：2023-10-24

申请号：US18151489

申请日：2023-01-09

Applicant: Japan Display Inc.

Inventor： Yasuhiro Takahashi ,  Jin Hirosawa

IPC: G02F1/1337 ,  G02F1/13 ,  G02F1/1343 ,  G02F1/137 ,  G02F1/1335 ,  G02F1/1333

CPC classification number: G02F1/1323 ,  G02F1/137 ,  G02F1/1337 ,  G02F1/133345 ,  G02F1/133512 ,  G02F1/133553 ,  G02F1/134309

Abstract: According to one embodiment, a louver includes a first transparent substrate, a first organic insulating film provided on an inner surface side of the first transparent substrate, and including a first inclined surface and a second inclined surface, a first reflective layer provided along the first inclined surface, and a second reflective layer provided along the second inclined surface. The first reflective layer includes a first reflective surface. The second reflective layer includes a second reflective surface. An interval between the first reflective surface and the second reflective surface increases with distance from the first transparent substrate.

公开(公告)号：US11791346B2

公开(公告)日：2023-10-17

申请号：US17694754

申请日：2022-03-15

Applicant: Japan Display Inc.

Inventor： Isao Suzumura

IPC: H01L21/00 ,  H01L27/00 ,  H01L29/00 ,  H01L27/12 ,  G02F1/1368 ,  H01L29/40 ,  H01L29/423 ,  H10K59/126 ,  H01L21/426

CPC classification number: H01L27/1225 ,  G02F1/1368 ,  H01L27/1248 ,  H01L29/401 ,  H01L29/42384 ,  H10K59/126 ,  G02F1/13685 ,  H01L21/426

Abstract: The purpose of the present invention is to decrease the resistance of the drain and source in the TFT of the oxide semiconductor as well as to have stable Vd-Id characteristics of the TFT. The structure of the present invention is as follows: A display device having plural pixels including thin film transistors (TFT) having oxide semiconductor films comprising: a gate insulating film formed on the oxide semiconductor film, an aluminum oxide film formed on the gate insulating film, a gate electrode formed on the aluminum oxide film, a side spacer formed on both sides of the gate electrode, and an interlayer insulating film formed on the gate electrode, the side spacer, a drain and a source, wherein in a plan view, and in a direction from the drain to the source, a length of the gate electrode is shorter than a length of the aluminum oxide film.

公开(公告)号：US11789318B2

公开(公告)日：2023-10-17

申请号：US17714179

申请日：2022-04-06

Applicant: Japan Display Inc.

Inventor： Toshiharu Matsushima

IPC: G02F1/13363 ,  G02F1/1335

CPC classification number: G02F1/133636 ,  G02F1/133531

Abstract: According to one embodiment, a display device includes a first viewing angle control panel including a first liquid crystal molecule, a second viewing angle control panel including a second liquid crystal molecule, and a polarization axis rotating element. An initial alignment direction of the first liquid crystal molecule is substantially orthogonal to an initial alignment direction of the second liquid crystal molecule. A second polarization component transmitted through the first viewing angle control panel includes a second polarization axis. A third polarization component transmitted through the second viewing angle control panel includes a third polarization axis. The polarization axis rotating element rotates the third polarization axis to align the third polarization axis with the second polarization axis.

公开(公告)号：US20230326424A1

公开(公告)日：2023-10-12

申请号：US18130709

申请日：2023-04-04

Applicant: Japan Display Inc.

Inventor： Yoshihide OHUE ,  Daijiro TAKANO

IPC: G09G3/36

CPC classification number: G09G3/3677 ,  G09G2310/0286 ,  G09G2310/08 ,  G09G2310/0235

Abstract: A display device includes a plurality of scanning lines extending in a first direction, a plurality of signal lines extending in a direction intersecting the first direction, a first scanning circuit coupled to first coupling end parts of the scanning lines, a second scanning circuit coupled to second coupling end parts of the scanning lines, the second coupling end parts being opposite the first coupling end parts of the scanning lines, the first coupling end parts coupled to the first scanning circuit, and a signal output circuit configured to supply image signals to the signal lines. The scanning lines each have a broken part.

公开(公告)号：US20230324751A1

公开(公告)日：2023-10-12

申请号：US18296470

申请日：2023-04-06

Applicant: Japan Display Inc.

Inventor： Yoshihide OHUE ,  Kentaro OKUYAMA ,  Hiroki SUGIYAMA ,  Yuuji OOMORI ,  Koji KITAMURA

IPC: G02F1/1362 ,  G02F1/1368

CPC classification number: G02F1/136286 ,  G02F1/1368

Abstract: A display device includes: an array substrate; a counter substrate; a liquid crystal layer between the array substrate and the counter substrate; spacers regulating a distance between the array substrate and the counter substrate; and a light source. The array substrate includes: signal lines arranged in a first direction; scan lines arranged in a second direction; switching elements each of which is coupled to a corresponding scan line and a corresponding signal line; and an organic insulating layer covering at least the switching elements. An area surrounded by the scan lines and the signal lines has a second area having a thickness less than that of the organic insulating layer in a first area overlapping the switching elements, the scan lines, and the signal lines in plan view. The spacers arranged in the first area have a thickness less than that of the organic insulating layer in the first area.

公开(公告)号：US20230324730A1

公开(公告)日：2023-10-12

申请号：US18336246

申请日：2023-06-16

Applicant: Japan Display Inc.

Inventor： Toshiharu MATSUSHIMA

IPC: G02F1/13 ,  G02F1/133 ,  G02F1/1335

CPC classification number: G02F1/1323 ,  G02F1/13318 ,  G02F1/133528 ,  B60K2370/52 ,  B60K35/00

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：US11782546B2

公开(公告)日：2023-10-10

申请号：US17970900

申请日：2022-10-21

Applicant: Japan Display Inc.

Inventor： Gen Koide

IPC: G06F3/041 ,  G06F3/044 ,  G02F1/1333 ,  G09G3/36

CPC classification number: G06F3/0412 ,  G06F3/044 ,  G06F3/04164 ,  G02F1/13338 ,  G09G3/3614 ,  G09G2300/0452

Abstract: A display device includes a plurality of first sub-pixels configured to display red, a plurality of second sub-pixels configured to display green, a plurality of third sub-pixels configured to display blue, and a plurality of fourth sub-pixels configured to display white, a first signal line coupled to the first sub-pixels, a second signal line coupled to the second sub-pixels, and a third signal line coupled to the third sub-pixels and the fourth sub-pixels, a plurality of detection electrodes arrayed in a matrix (row-column configuration) and each provided overlapping the first sub-pixels, the second sub-pixels, the third sub-pixels, and the fourth sub-pixels, and a plurality of signal supply wires coupled to the respective detection electrodes. The signal supply wires are each provided overlapping at least one of the first signal line and the second signal line and not overlapping the third signal line.

公开(公告)号：US11781925B2

公开(公告)日：2023-10-10

申请号：US17467757

申请日：2021-09-07

Applicant: Japan Display Inc.

Inventor： Hiroumi Kinjo

IPC: G01L1/14 ,  H01L25/065

CPC classification number: G01L1/146 ,  H01L25/0655

Abstract: A force sensor including an array layer that includes array substrates arranged on an identical plane such that end portions thereof are adjacent to each other, the force sensor includes



the array layer having a first surface on which array electrodes are disposed and a second surface opposite to the first surface;
a conductive layer layered on the first surface of the array layer;
a protection layer layered on the conductive layer; and
a counter electrode interposed between the conductive layer and the protection layer, wherein
a bonding member which bonds the adjacent array substrates and covers a joint between the adjacent array substrates is provided on the second surface of the array layer,
the conductive layer is composed of a single member layered across each of the array substrates, and
a sealing portion having a frame shape is provided on an outer circumference side of the conductive layer.

公开(公告)号：US20230320172A1

公开(公告)日：2023-10-05

申请号：US18295283

申请日：2023-04-04

Applicant: Japan Display Inc.

Inventor： Kaichi FUKUDA

IPC: H10K59/80 ,  H10K71/00

CPC classification number: H10K59/80515 ,  H10K71/00 ,  H10K59/80521 ,  H10K2102/351

Abstract: According to one embodiment, a display device includes a lower electrode, a rib including a pixel aperture, a partition on the rib, an upper electrode, and an organic layer between the lower electrode and the upper electrode. The partition includes a conductive first portion, a conductive second portion which is provided on the first portion and is in contact with the upper electrode, and a third portion provided on the second portion. A lower end of the second portion protrudes in a width direction of the partition relative to the first portion. The third portion protrudes in the width direction relative to an upper end of the second portion.

公开(公告)号：US20230320142A1

公开(公告)日：2023-10-05

申请号：US18190158

申请日：2023-03-27

Applicant: Japan Display Inc.

Inventor： Hirofumi MIZUKOSHI ,  Kaichi FUKUDA ,  Takanobu TAKENAKA ,  Masaru TAKAYAMA

IPC: H10K59/122 ,  H10K59/12 ,  H10K59/35

CPC classification number: H10K59/122 ,  H10K59/1201 ,  H10K59/35

Abstract: According to one embodiment, in a manufacturing method of a display device, a first etching stopper layer and a first sealing layer is formed. A second etching stopper layer and a second sealing layer is formed. A third etching stopper layer and a third sealing layer is formed. An etching rate of the first etching stopper layer is less than an etching rate of the first sealing layer. An etching rate of the second etching stopper layer is less than an etching rate of the second sealing layer. An etching rate of the third etching stopper layer is less than an etching rate of the third sealing layer. A thickness of each of the first etching stopper layer and the second etching stopper layer is greater than a thickness of the third etching stopper layer.