公开(公告)号：US20230315914A1

公开(公告)日：2023-10-05

申请号：US18119827

申请日：2023-03-10

Applicant: Japan Display Inc.

Inventor： Masataka IKEDA

IPC: G06F21/73 ,  G06F21/32 ,  H04L9/32

CPC classification number: G06F21/73 ,  G06F21/32 ,  H04L9/3278

Abstract: An authentication device includes a display device and a control circuit. The display device includes a first transistor having a gate and a source electrode, a photoelectric conversion element having a first electrode connected to a drain electrode of the first transistor, and a capacitive element connected between the gate electrode and the drain electrode. The control circuit controls resetting the drain electrode, initializing the gate electrode, storing first charge corresponding to the threshold of the first transistor in the capacitive element, setting the threshold of the first transistor, transmitting a signal including data for causing the photoelectric conversion element to emit to the gate electrode, adding second charge corresponding data to the first charge, causing the photoelectric conversion element to emit, reading a voltage corresponding to the first charge and the second charge, and generating a PUF-ID using the voltage.

公开(公告)号：US20230314879A1

公开(公告)日：2023-10-05

申请号：US18329870

申请日：2023-06-06

Applicant: Japan Display Inc.

Inventor： Kyosuke WATANABE ,  Yuji MAEDE

IPC: G02F1/1362 ,  G02F1/1343

CPC classification number: G02F1/134318 ,  G02F1/13439 ,  G02F1/136286

Abstract: According to one embodiment, a liquid crystal display device includes first and second substrates and a liquid crystal layer. The first substrate includes scanning line extending in a first direction, signal line extending in a second direction, pixel electrodes including and a common electrode. The common electrode includes sub-electrodes extending in the first or second direction. Each of the sub-electrodes includes a first portion having a width greater than the scanning or signal line, and a second portion having a width less than the first portion but greater than the scanning or signal line. The first and second portions are alternately arranged along a direction in which the sub-electrodes extend.

公开(公告)号：US20230314867A1

公开(公告)日：2023-10-05

申请号：US18191877

申请日：2023-03-29

Applicant: Japan Display Inc.

Inventor： Shuichi OSAWA ,  Yoshikatsu IMAZEKI ,  Yoichi KAMIJO ,  Koichi MIYASAKA ,  Yoshifumi KAMEI

IPC: G02F1/1335 ,  G02F1/1339

CPC classification number: G02F1/133514 ,  G02F1/133531 ,  G02F1/1339

Abstract: According to one embodiment, a display device includes a liquid crystal panel and a color separation element substrate. The substrate includes a bonding area in a peripheral portion of a surface opposing the panel, and a color separation groove that serves as a color separation element is formed in an effective display area inside the bonding area. The panel includes a bonding area in a peripheral portion of the substrate on an incident surface side of the backlight, and a polarizer is disposed on an inner side the bonding area. The bonding area of the substrate and the bonding area of the panel are bonded to each other via a sealant layer formed from a sealant applied thereon and cured.

公开(公告)号：US20230314861A1

公开(公告)日：2023-10-05

申请号：US18329644

申请日：2023-06-06

Applicant: Japan Display Inc.

Inventor： Yoichi KAMIJO ,  Yoshikatsu IMAZEKI ,  Shuichi OSAWA ,  Yoshihiro WATANABE ,  Koichi MIYASAKA

IPC: G02F1/1334 ,  G02F1/1345 ,  G02F1/1333

CPC classification number: G02F1/1334 ,  G02F1/1345 ,  G02F1/133388

Abstract: According to one embodiment, a display device includes a first substrate, a second substrate opposing the first substrate, a liquid crystal layer and a light source that emits light to the liquid crystal layer, and the first substrate includes a first portion opposing the second substrate and having a first thickness and a second portion not opposing the second substrate and having a second thickness which is less than the first thickness, and the light source is disposed on the second portion, and the light source includes a first surface opposing the second portion and a second surface opposing the first surface, and a wiring substrate is disposed on the second surface so that the wiring substrate does not protrude with respect to the second substrate in a thickness direction.

公开(公告)号：US11774812B2

公开(公告)日：2023-10-03

申请号：US17698158

申请日：2022-03-18

Applicant: Japan Display Inc.

Inventor： Masashi Mitsui ,  Takeo Koito ,  Tae Kurokawa

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

CPC classification number: G02F1/1347 ,  G02F1/133528 ,  G02F1/134318

Abstract: According to one embodiment, an optical control device includes a first liquid crystal cell and a second liquid crystal cell. The second liquid crystal cell is stacked on the first liquid crystal cell. The first liquid crystal cell has a function of modulating and converting a first polarization component of incident light into a second polarization component, and hardly modulating and converting a third polarization component of incident light into a fourth polarization component. The second liquid crystal cell has a function of hardly modulating the second polarization component transmitted through the first liquid crystal cell, and modulating the fourth polarization component transmitted through the first liquid crystal cell.

公开(公告)号：US11774810B2

公开(公告)日：2023-10-03

申请号：US17953394

申请日：2022-09-27

Applicant: Japan Display Inc.

Inventor： Motoharu Miyamoto

IPC: G02F1/1343 ,  G02F1/1362 ,  G02F1/1339

CPC classification number: G02F1/134363 ,  G02F1/1339 ,  G02F1/13394 ,  G02F1/136286 ,  G02F1/134309 ,  G02F1/134318

Abstract: The liquid crystal display device includes: a TFT substrate including scanning lines extending in a first direction and being arranged in a second direction, video signal lines extending in the second direction and being arranged in the first direction, pixel electrodes arranged in regions surrounded by the scanning lines and the video signal lines, and common electrodes formed with an insulating film arranged between the common electrodes and the pixel electrodes; a counter substrate opposed to the TFT substrate; and a liquid crystal. The first common electrode extends between the first and second scanning lines in the first direction, and the second common electrode extends between the second and third scanning lines in the first direction. The first and second common electrodes are electrically connected by a bridge. The bridge covers the first video signal line without covering the second video signal line, when seen in a plan view.

公开(公告)号：US20230305654A1

公开(公告)日：2023-09-28

申请号：US18123383

申请日：2023-03-20

Applicant: Japan Display Inc.

Inventor： Hideyuki TAKAHASHI ,  Hiroshi TABATAKE ,  Sho YANAGISAWA

IPC: G06F3/041 ,  H10K59/131 ,  H10K59/80

CPC classification number: G06F3/04164 ,  G06F3/0412 ,  H10K59/131 ,  H10K59/873 ,  G06F3/0446

Abstract: Provided is a display device including a first dam surrounding the display area, a second dam surrounding the first dam, a first sensor electrode and a second sensor electrode overlapping the display area, a first sensor wiring and a second sensor wiring over the first dam and electrically connected to the first sensor electrode and the second sensor electrode, respectively, a first wiring under the second dam and electrically connected to the first sensor wiring at a first contact portion, and a second wiring under the second dam and electrically connected to the second sensor wiring at a second contact portion.

公开(公告)号：US20230305500A1

公开(公告)日：2023-09-28

申请号：US18124117

申请日：2023-03-21

Applicant: Japan Display Inc.

Inventor： Kaoru ITO ,  Akihiko FUJISAWA ,  Daichi ABE

IPC: G04G21/08 ,  G06F3/041 ,  G06F3/044

CPC classification number: G04G21/08 ,  G06F3/04164 ,  G06F3/041662 ,  G06F3/0443 ,  G06F3/0412

Abstract: According to one embodiment, a display device includes a display area, a peripheral area and a plurality of detection electrodes. The display area includes a display element. The peripheral area surrounds the display area. The plurality of detection electrodes are arranged in the peripheral area. The plurality of detection electrodes are each electrically connected to at least one other detection electrode that is not adjacent thereto.

公开(公告)号：US20230305339A1

公开(公告)日：2023-09-28

申请号：US18185411

申请日：2023-03-17

Applicant: Japan Display Inc.

Inventor： Toshiharu MATSUSHIMA

IPC: G02F1/13363 ,  G02B27/01 ,  G02F1/1335

CPC classification number: G02F1/133638 ,  G02B27/0101 ,  G02F1/133528 ,  G02B2027/0118

Abstract: An image output panel includes: a first polarization plate that transmits light polarized in a first direction and blocks light polarized in a direction different from the first direction; a second polarization plate that transmits light polarized in a second direction different from the first direction and blocks light polarized in a direction different from the second direction; a liquid crystal panel that is disposed between the first polarization plate and the second polarization plate; and a retardation plate that changes the polarization direction of light from the first direction to the second direction or from the second direction to the first direction. When a polarization direction of output light that is output from the image output panel is referred to as a first polarization direction, the output light having the first polarization direction is light having the first polarization direction included in incident light from a light source.

公开(公告)号：US20230301159A1

公开(公告)日：2023-09-21

申请号：US18184699

申请日：2023-03-16

Applicant: Japan Display Inc.

Inventor： Hiroshi TABATAKE

IPC: H10K59/80 ,  H10K59/131

CPC classification number: H10K59/873 ,  H10K59/131

Abstract: According to one embodiment, a display device includes a substrate, an insulating layer above the substrate, a lower electrode, a rib, a partition, an upper electrode, an organic layer between the electrodes, a dam structure including a protrusion in a surrounding area, and a conductive layer in the surrounding area covering at least a part of the dam structure and connected to the partition. The partition and the conductive layer include a conductive lower portion and an upper portion protruding from the lower portion. The end portion of the conductive layer is between the protrusion and the end portion of the substrate.