公开(公告)号：US20210109614A1

公开(公告)日：2021-04-15

申请号：US17130353

申请日：2020-12-22

Applicant: Japan Display Inc.

Inventor： Yoshitoshi KIDA ,  Koji NOGUCHI ,  Yasuyuki TERANISHI ,  Hiroshi MIZUHASHI ,  Kohei AZUMI

IPC: G06F3/044 ,  G06F3/041

Abstract: A display device is provided and includes a substrate; pixel electrode on the substrate; a signal line coupled to the pixel electrode; a plurality of drive electrodes including a first drive electrode overlapping the signal line; a drive signal line configured to supply a drive signal to the first drive electrode; and a drive electrode switch connecting the drive signal line and the first drive electrode, wherein during a touch detection period, the drive electrode switch is closed to apply the drive signal to the first drive electrode.

公开(公告)号：US20200341581A1

公开(公告)日：2020-10-29

申请号：US16926137

申请日：2020-07-10

Applicant: Japan Display Inc.

Inventor： Kazuyuki KOBAYASHI ,  Hayato KURASAWA ,  Hiroshi MIZUHASHI ,  Masaya TAMAKI ,  Takeo KOITO ,  Koji NOGUCHI

IPC: G06F3/041 ,  G06F3/044 ,  F21V8/00 ,  G09G3/36

Abstract: A sensor-equipped display device is provided and includes display panel including first and second substrates, common electrode, and polarizer; backlight unit which emits light toward display panel, including light guide opposed to polarizer and light source which emits light toward light guide; conductive member arranged at back side of display panel and opposed to polarizer; controller; first flexible printed circuit; and second flexible printed circuit, wherein first flexible printed circuit is connected to display panel, second flexible printed circuit is connected to back side of first flexible printed circuit, common electrode is connected to controller via first flexible printed circuit, second flexible printed circuit comprises first branch portion and second branch portion, first branch portion is connected to light source, and conductive member is connected to controller via second branch portion of second flexible printed circuit and first flexible printed circuit.

公开(公告)号：US20200257401A1

公开(公告)日：2020-08-13

申请号：US16859281

申请日：2020-04-27

Applicant: Japan Display Inc.

Inventor： Hiroshi MIZUHASHI ,  Yasuyuki TERANISHI ,  Toshiaki FUKUSHIMA ,  Daisuke ITO ,  Gen KOIDE ,  Tadayoshi KATSUTA

IPC: G06F3/041 ,  G09G3/36 ,  G06F3/044 ,  G02F1/1368 ,  G02F1/1362 ,  G02F1/1343 ,  G02F1/133

Abstract: A liquid crystal display device is provided and includes a liquid crystal element array having pixel electrodes and switching elements arranged in a matrix form; scanning lines arranged in each row of the liquid crystal element array and supply a scanning signal to switching elements; signal lines arranged in each column of the liquid crystal element array and supply an image signal to the pixel electrodes through switching elements; touch electrodes overlapping pixel electrodes and arranged in the column of the liquid crystal element array; signal line drive circuit arranged along one side of the liquid crystal element array parallel to the row of the liquid crystal element array and forms the image signal; first circuit arranged along the other side of the liquid crystal element array parallel to the row of the liquid crystal element array and is connected to the touch electrodes; and second circuit arranged along the one side of the liquid crystal element array and is connected to the touch electrodes, wherein a touch signal is supplied from the second circuit on the one side of the liquid crystal element array and the touch signal is supplied from the first circuit on the other side of the liquid crystal element array.

公开(公告)号：US20190391696A1

公开(公告)日：2019-12-26

申请号：US16565017

申请日：2019-09-09

Applicant: Japan Display Inc.

Inventor： Hiroshi MIZUHASHI ,  Toshiaki FUKUSHIMA ,  Gen KOIDE ,  Yoshiyuki KII

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

Abstract: According to one embodiment, a display device includes first and second substrate units, a display function layer, and a drive element. The first substrate unit includes a first substrate, a display unit, and a control circuit unit. The first substrate has a first surface including a display region and a peripheral region. The display unit is provided in the display region, and includes first lines, second lines, switch elements, pixel electrodes, and third lines. The control circuit unit is provided in the peripheral region, and includes a first circuit unit including a third line connection line, and a third line switch. The second substrate unit includes a second substrate and fourth lines. The display function layer is provided between the first and second substrate units. The drive element is provided on the peripheral region. The first circuit unit is partially disposed between the drive element and the first substrate.

公开(公告)号：US20190354739A1

公开(公告)日：2019-11-21

申请号：US16531887

申请日：2019-08-05

Applicant: Japan Display Inc.

Inventor： Fumihito SHIBANO ,  Hiroshi MIZUHASHI ,  Toshinori UEHARA ,  Kimiyo NONOYAMA ,  Hayato KURASAWA

IPC: G06K9/00

Abstract: A fingerprint sensor and includes a first substrate having a first surface; an insulating layer having a second surface opposed to the first surface of the first substrate, and a third surface opposed to the second surface; sensor electrodes arranged in a matrix in the third surface; and a conductive portion arranged in the first surface of the first substrate and configured to supply a drive signal, wherein a height of the conductive portion is higher than a height of one of the sensor electrodes in a direction perpendicular to the first surface of the first substrate.

公开(公告)号：US20190235699A1

公开(公告)日：2019-08-01

申请号：US16376743

申请日：2019-04-05

Applicant: Japan Display Inc.

Inventor： Toshinori UEHARA ,  Hiroshi MIZUHASHI ,  Toshio SOYA

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0418 ,  G06F3/044 ,  G06F2203/04107 ,  G06F2203/04108

Abstract: According to an aspect, a touch detecting apparatus includes: three or more detectors; a generating circuit that performs generation for generating a plurality of pieces of output data corresponding to a plurality of patterns and having resolution lower than resolution corresponding to the number of the detectors based on outputs from the detectors; a calculating circuit that performs calculation for calculating, for each of the detectors, a composite value to be used to derive a detection result of each of the detectors based on the pieces of output data corresponding to the patterns.

公开(公告)号：US20190114029A1

公开(公告)日：2019-04-18

申请号：US16161901

申请日：2018-10-16

Applicant: Japan Display Inc.

Inventor： Hiroshi MIZUHASHI ,  Yasuyuki TERANISHI ,  Toshiaki FUKUSHIMA ,  Daisuke ITO ,  Gen KOIDE ,  Tadayoshi KATSUTA

IPC: G06F3/041 ,  G06F3/044 ,  G02F1/1368 ,  G02F1/1362 ,  G09G3/36 ,  G02F1/133 ,  G02F1/1343

Abstract: A liquid crystal display device includes a liquid crystal element array having liquid crystal display elements arranged in matrix, scanning lines arranged in each row of the liquid crystal element array and supplying a scanning signal to the liquid crystal display elements in a corresponding row, signal lines arranged in each column of the liquid crystal element array and supplying an image signal to the liquid crystal display elements in a corresponding column, drive electrodes arranged in the column of the liquid crystal element array and to which a drive signal to detect a touch is supplied, a signal line drive circuit arranged along one side of the liquid crystal element array parallel to the row of the liquid crystal element array and forming the image signal, and a first electrode drive circuit arranged along the other side of the liquid crystal element array and forming the drive signal.

公开(公告)号：US20190102596A1

公开(公告)日：2019-04-04

申请号：US16142359

申请日：2018-09-26

Applicant: Japan Display Inc.

Inventor： Daichi SUZUKI ,  Hayato KURASAWA ,  Hiroshi MIZUHASHI ,  Toshinori UEHARA ,  Yuji SUZUKI

IPC: G06K9/00 ,  H01L23/00 ,  H01L23/31 ,  H01L23/498

Abstract: According to an aspect, a detection device includes: a first circuit substrate; a glass substrate attached at a position close to one surface of the first circuit substrate; a metal wire that couples an electrode provided on the one surface of the first circuit substrate to an electrode provided on the glass substrate; and a resin member that covers the glass substrate and the metal wire. The glass substrate includes a detection electrode that detects electrostatic capacitance.

公开(公告)号：US20190087038A1

公开(公告)日：2019-03-21

申请号：US16193810

申请日：2018-11-16

Applicant: Japan Display Inc.

Inventor： Tadayoshi KATSUTA ,  Hiroshi MIZUHASHI ,  Hayato KURASAWA

IPC: G06F3/046 ,  G06F3/0354 ,  G02F1/1333 ,  G06F3/044 ,  G06F3/047 ,  G06F3/041 ,  G02F1/1343

Abstract: An input detection device is provided with a plurality of drive electrodes, a metal electrode opposed to the plurality of drive electrodes and having a predetermined wiring pattern, and a light-shielding film. In plan view, a width of the wiring pattern of the metal electrode overlapped with a portion of the light-shielding film with a large width is larger than a width of the wiring pattern of the metal electrode overlapped with portions other than the portion of the light-shielding film with the large width.

公开(公告)号：US20180254801A1

公开(公告)日：2018-09-06

申请号：US15904988

申请日：2018-02-26

Applicant: Japan Display Inc.

Inventor： Yuji SUZUKI ,  Ryota MITO ,  Hiroshi MIZUHASHI ,  Hayato KURASAWA

IPC: H04B5/00 ,  F21V8/00 ,  G02F1/1333 ,  G06F3/044

CPC classification number: H04B5/0025 ,  G02B6/0055 ,  G02F1/13338 ,  G02F1/1336 ,  G06F3/0412 ,  G06F3/0416 ,  G06F3/044 ,  G06F2203/04105

Abstract: According to an aspect, a display device includes: a display portion having a display region; a backlight configured to illuminate the display region from a back side of the display portion, the backlight including a light guide plate, and a light source provided facing a lateral side of the light guide plate and configured to emit light; an antenna electrode wound around, facing a back side of the backlight, and configured to reflect light within the display region in a plan view, the light having entered the light guide plate from the light source; and a plurality of dummy electrodes provided on a part of a plane on which the antenna electrode is provided, the part being in a region unoccupied by the antenna electrode. The dummy electrodes reflect light within the display region in a plan view, the light having entered the light guide plate from the light source.