公开(公告)号：US20210273108A1

公开(公告)日：2021-09-02

申请号：US17184708

申请日：2021-02-25

Applicant: Japan Display Inc.

Inventor： Hirotaka HAYASHI ,  Masataka IKEDA

IPC: H01L29/786 ,  G02F1/167

Abstract: According to one embodiment, a semiconductor layer includes a base, a scanning line disposed over the base, a signal line disposed over the base, a transistor overlapping the scanning line and the signal line and including a first oxide semiconductor layer connected to the signal line, and second oxide semiconductor layers disposed in a same layer as the first oxide semiconductor layer. The second oxide semiconductor layers are disposed around the transistor, and the second oxide semiconductor layers are floating.

公开(公告)号：US20240248356A1

公开(公告)日：2024-07-25

申请号：US18402788

申请日：2024-01-03

Applicant: Japan Display Inc.

Inventor： Masataka IKEDA

IPC: G02F1/1362 ,  G02F1/1334 ,  G02F1/1368 ,  H01L27/12

CPC classification number: G02F1/136227 ,  G02F1/1334 ,  G02F1/1368 ,  H01L27/1248

Abstract: A display device includes a transistor having an oxide semiconductor layer, a gate electrode opposed to the semiconductor layer, and a gate insulating film arranged between the oxide semiconductor layer and the gate electrode, a drain electrode connected to the transistor, a pixel electrode connected to the drain electrode, and a first insulating film and a second insulating film arranged between the drain electrode and the pixel electrode.

公开(公告)号：US20240160066A1

公开(公告)日：2024-05-16

申请号：US18505329

申请日：2023-11-09

Applicant: Japan Display Inc.

Inventor： Masataka IKEDA

IPC: G02F1/1343 ,  G02F1/1334

CPC classification number: G02F1/134336 ,  G02F1/1334

Abstract: A display device includes a pixel electrode layer in which a plurality of pixel electrodes is arranged in a first direction and a second direction crossing the first direction, a first substrate including a first surface and a second surface on which the pixel electrode layer is arranged, a second substrate including a third surface arranged to face the second surface, a common electrode layer arranged on the third surface, and a liquid crystal layer arranged between the common electrode layer and the pixel electrode layer. Each of the plurality of pixel electrodes includes a plurality of first openings.

公开(公告)号：US20230369348A1

公开(公告)日：2023-11-16

申请号：US18312608

申请日：2023-05-05

Applicant: Japan Display Inc.

Inventor： Kentaro KAWAI ,  Masataka IKEDA ,  Hirotaka HAYASHI ,  Yuuji OOMORI ,  Yoshihide OHUE

IPC: H01L27/12 ,  G09G3/36 ,  G02F1/1362 ,  G02F1/1368 ,  G02F1/1345 ,  G02F1/1334

CPC classification number: H01L27/124 ,  G02F1/13347 ,  G02F1/13452 ,  G02F1/136286 ,  G02F1/1368 ,  G09G3/3648 ,  G09G3/3677 ,  G02F1/136227 ,  G02F2203/01 ,  G09G2310/08

Abstract: A display device includes a first pixel, a second pixel, and a third pixel arranged in a first direction in a display area arranged on a first substrate, a first source wiring, a second wiring, and a third wiring extending in the first direction, and connected to each of the first pixel to the third pixel, and a first gate wiring, a second gate wiring, and a third wiring intersecting the first direction, and connected to each of the first pixel to the third pixel. The first pixel includes a first transistor electrically connected to the first gate wiring and the first source wiring and a liquid crystal element electrically connected to the first transistor, the first pixel to the third pixel are arranged between the first source wiring and the third source wiring, and the second source wiring, and the first source wiring intersects the third source wiring.

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：US20220319447A1

公开(公告)日：2022-10-06

申请号：US17657225

申请日：2022-03-30

Applicant: Japan Display Inc.

Inventor： Masataka IKEDA

IPC: G09G3/34 ,  G02F1/167 ,  G02F1/16766 ,  G02F1/1685

Abstract: The display device includes at least one pixel having a first capacitive element having a first terminal and a transistor connected to the first terminal and having a second terminal and a gate electrode. A driving method of the display device including in a first frame, a signal with a first pulse width is supplied to the gate electrode of the transistor, and a first voltage is written from the second terminal to the first terminal. In the second frame after the first frame, a signal with a second pulse width is supplied to the gate electrode, and the first terminal holds the first voltage. In the third frame after the second frame, a signal with a third pulse width is supplied to the gate electrode, and the second voltage is written from the second terminal to the first terminal.

公开(公告)号：US20210265533A1

公开(公告)日：2021-08-26

申请号：US17316927

申请日：2021-05-11

Applicant: Japan Display Inc.

Inventor： Osamu ITOU ,  Masanobu IKEDA ,  Masataka IKEDA

IPC: H01L33/44 ,  H01L25/16 ,  H01L33/54 ,  H01L33/60 ,  H01L33/62 ,  H01L33/46

Abstract: A display device includes a substrate, a plurality of pixels, a light emitting element, and an inorganic insulating layer. The pixels are provided to the substrate. The light emitting element is provided to each of the pixels. The inorganic insulating layer has translucency and covers at least part of the light emitting element. The inorganic insulating layer includes a side part and an extending part. The side part is provided to the side surface of the light emitting element. The extending part is provided at a side on the lower end of the side part and extending toward the outer side of the light emitting element than the side part in planar view seen from the normal direction of the substrate.