公开(公告)号：US10303291B2

公开(公告)日：2019-05-28

申请号：US16055709

申请日：2018-08-06

Applicant: Japan Display Inc.

Inventor： Hayato Kurasawa ,  Hiroshi Mizuhashi

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

Abstract: According to one embodiment, a display device includes a plurality of gate lines, a plurality of data lines intersecting with the gate lines, a plurality of pixel electrodes, and a sensor drive controller which includes a plurality of common electrodes facing the pixel electrodes and detects a touch by controlling the common electrodes. The sensor drive controller selects at least one of the common electrodes, and supplies a sensor signal to the selected common electrode to set the selected common electrode to a sensing state. The sensor drive controller sets at least the common electrode adjacent to the common electrode set to the sensing state to a guard state and sets the other common electrodes to a floating state.

公开(公告)号：US20190138134A1

公开(公告)日：2019-05-09

申请号：US16239919

申请日：2019-01-04

Applicant: Japan Display Inc.

Inventor： Masanobu Ikeda ,  Koji Ishizaki ,  Hayato Kurasawa ,  Yoshihiro Watanabe ,  Toshimasa Ishigaki ,  Daisuke Sonoda ,  Tatsuya Ide

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

CPC classification number: G06F3/044 ,  G02F1/13338 ,  G02F1/136204 ,  G02F2001/134372 ,  G06F3/0412

Abstract: To reduce disturbances in display of images due to static electricity without deteriorating optical properties in a display. The display includes a conductive pattern provided on the upper surface of the substrate, a protection layer provided on the upper surface of the substrate to cover the conductive pattern, and a conductive layer provided on the protection layer. The sheet resistance of the conductive pattern is not more than 8 Ω/square. A ratio of the total sum of areas of portions of the plurality of sub-pixels that overlap the conductive pattern in a plan view to the total sum of the areas of the plurality of sub-pixels is 1 to 22%. A sheet resistance of the conductive layer is higher than the sheet resistance of the conductive pattern.

公开(公告)号：US20190072827A1

公开(公告)日：2019-03-07

申请号：US16180447

申请日：2018-11-05

Applicant: Japan Display Inc.

Inventor： Hayato Kurasawa ,  Toshiharu Matsushima

IPC: G02F1/1343 ,  G02F1/1337

Abstract: According to an aspect, a display device has a first electrode, a second electrode and liquid crystal layer. When a voltage is not applied to the first and second electrodes, the major axes of the liquid crystal molecules are oriented in a third direction. When a voltage is applied between the first and second electrodes, the major axes are oriented so as to rise in a direction perpendicular to a first substrate while rotating clockwise in a vicinity of one of long sides of comb tooth portion that face each other and counterclockwise in a vicinity of the other of the long sides. An angle between an electrode base-side portion of a long side of each comb tooth portions and the third direction is larger than an angle between a distal end-side portion of the long side of each comb tooth portions and the third direction.

公开(公告)号：US20190033641A1

公开(公告)日：2019-01-31

申请号：US16150672

申请日：2018-10-03

Applicant: Japan Display Inc.

Inventor： Koji Ishizaki ,  Masanobu Ikeda ,  Hayato Kurasawa ,  Yoshihiro Watanabe

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

Abstract: A display apparatus includes a first substrate, a second substrate facing the first substrate, lead wirings provided on the first substrate or the second substrate and a first insulator part provided on an upper surface of the second substrate. The lead wirings are arranged in a peripheral region when seen in a plan view and the first insulator part is arranged so as to overlap a display region when seen in a plan view. Second insulator parts or spaces with a permittivity lower than a permittivity of the first insulator part are provided at sides of the first insulator part. The second insulator parts or the spaces are arranged so as to overlap the lead wirings in the peripheral region when seen in a plan view.

公开(公告)号：US10175795B2

公开(公告)日：2019-01-08

申请号：US15266099

申请日：2016-09-15

Applicant: Japan Display Inc.

Inventor： Hayato Kurasawa ,  Toshihiko Tanaka ,  Naoki Takada ,  Chihiro Tanaka ,  Koji Ishizaki

IPC: G06F3/045 ,  G06F3/041 ,  G06F3/044 ,  G02F1/133

Abstract: According to one embodiment, a sensor-equipped display device includes a display panel which includes a sensor driving electrode disposed in a display area for displaying an image, detection electrodes each including a body portion opposed to the sensor driving electrode in the display area and a broadened portion connected to the body portion and formed to be wider than the body portion, and a lead line disposed in a non-display area outside the display area and electrically connected to the broadened portion. The broadened portion is disposed in the non-display area without being overlaid on the display area in planar view.

公开(公告)号：US10156929B2

公开(公告)日：2018-12-18

申请号：US15189629

申请日：2016-06-22

Applicant: Japan Display Inc.

Inventor： Hayato Kurasawa ,  Koji Ishizaki

IPC: G06F3/045 ,  G06F3/041 ,  G06F3/044

Abstract: A touch detection device and a display device with a touch detection function include: a substrate; a touch detection electrode that is arranged on a plane parallel with the substrate, and that includes a plurality of wires arranged at intervals from one another; and a conductive layer that has a sheet resistance value larger than that of the wires, and that is in contact with and overlaps the wires.

公开(公告)号：US10139976B2

公开(公告)日：2018-11-27

申请号：US15465866

申请日：2017-03-22

Applicant: Japan Display Inc.

Inventor： Shinya Iuchi ,  Taiki Kasai ,  Hayato Kurasawa

IPC: G06F3/044 ,  G06F3/041

Abstract: According to an aspect, a detecting apparatus includes: a touch detection electrode provided along a touch detection surface; a strain gauge integrated with the touch detection electrode.

公开(公告)号：US10139942B2

公开(公告)日：2018-11-27

申请号：US15499010

申请日：2017-04-27

Applicant: Japan Display Inc.

Inventor： Hayato Kurasawa ,  Koji Ishizaki ,  Takeo Koito

IPC: G06F3/041 ,  G02F1/1333 ,  G02F1/1335 ,  G02F1/1362 ,  G06F3/044 ,  G02F1/1343

Abstract: A display device includes: a plurality of pixel electrodes each of which is provided in each of a plurality of sub-pixels arranged in a display region; a driving electrode provided so as to overlap the plurality of pixel electrodes when seen in a plan view; a plurality of detecting electrodes provided so as to overlap the driving electrode when seen in a plan view; and a dummy electrode provided apart from the detecting electrodes. The detecting electrodes and the dummy electrode include a metal layer or an alloy layer. A ratio of total sum of areas of portions of the plurality sub-pixels which overlap any of the detecting electrodes and the dummy electrode when seen in a plan view to total sum of areas of the plurality of sub-pixels is 1 to 22%.

公开(公告)号：US10095359B2

公开(公告)日：2018-10-09

申请号：US14150309

申请日：2014-01-08

Applicant: Japan Display Inc.

Inventor： Hayato Kurasawa ,  Yasuyuki Teranishi ,  Yoshitoshi Kida

IPC: G06F3/044 ,  G06F3/041

Abstract: According to an aspect, a touch detection device includes a drive electrode layer including a plurality of drive electrodes formed in stripes in an array direction; a plurality of touch detection electrodes that are arranged in a manner facing the plurality of drive electrodes and generate capacitance with the plurality of drive electrodes; and a touch detecting unit that applies a touch drive signal to the plurality of drive electrodes and detects a position of an object in contiguity with a touch detection area based on detection signals supplied from the plurality of touch detection electrodes. The plurality of the drive electrodes include an end drive electrode that is provided to at least one end in the array direction and has a larger width in the array direction than the width in the array direction of drive electrodes other than the end drive electrode.

公开(公告)号：US10078390B2

公开(公告)日：2018-09-18

申请号：US15401712

申请日：2017-01-09

Applicant: Japan Display Inc.

Inventor： Hayato Kurasawa ,  Koji Ishizaki ,  Takeo Koito

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

CPC classification number: G06F3/0412 ,  G02F1/13338 ,  G06F3/017 ,  G06F3/0416 ,  G06F3/044 ,  G06F3/047 ,  G06F2203/04112 ,  G06F2203/04808 ,  G09G3/36 ,  G09G3/3607 ,  G09G3/3655 ,  G09G3/3674 ,  G09G3/3685 ,  G09G2320/02

Abstract: A touch detection device is provided. The touch detection device includes a substrate; a display area in which pixels each constituted by a plurality of color regions are arranged in a matrix in a plane parallel to a surface of the substrate; a touch detection electrode arranged on the substrate; a drive electrode that has electrostatic capacitance with respect to the touch detection electrode, wherein the touch detection electrode includes a conductive thin wire including a first wire segment having a first end and a second end, a second wire segment having a first end and a second end, and a third wire segment having a first end and a second end.