公开(公告)号：US10242244B2

公开(公告)日：2019-03-26

申请号：US15412793

申请日：2017-01-23

Applicant: Japan Display Inc.

Inventor： Hayato Kurasawa ,  Toshinori Uehara ,  Hiroshi Mizuhashi

IPC: G06K9/00

Abstract: A fingerprint detection device includes: a substrate having a first surface and a second surface on an opposite side of the first surface, the first surface serving as a detection surface configured to detect unevenness of an object in contact or in proximity; a detection electrode provided on the second surface side of the substrate and configured to detect unevenness of a finger in contact or in proximity on the basis of an electrostatic capacitance change; and a drive circuit provided on the second surface side of the substrate and configured to supply a drive signal to the detection electrode.

公开(公告)号：US10216345B2

公开(公告)日：2019-02-26

申请号：US15660540

申请日：2017-07-26

Applicant: Japan Display Inc.

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

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

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：US20190018999A1

公开(公告)日：2019-01-17

申请号：US16135775

申请日：2018-09-19

Applicant: Japan Display Inc.

Inventor： Toshinori Uehara ,  Yoshitoshi Kida ,  Hiroshi Mizuhashi ,  Hayato Kurasawa ,  Yuji Suzuki ,  Shoji Hinata ,  Toshiya Yamazaki

IPC: G06K9/00 ,  G06F3/0354 ,  G06F3/041 ,  G06F3/044 ,  G06F21/32

Abstract: A display panel including a display function layer displaying an image in a display area, a cover member including a first face and a second face disposed on an opposite side of the first face and faces the display panel, and a fingerprint sensor including a plurality of first detection electrodes disposed in a sensor base and configured to detect unevenness of an object brought into contact with or approaching the first face of the cover member, a shield electrode disposed to face the plurality of first detection electrodes and configured to suppress a change in capacitance between the first detection electrodes and the shield electrode, and switching elements disposed in correspondence with the first detection electrodes, the fingerprint sensor being arranged between the cover member and the display panel and arranged to overlap with the display area when viewed in a direction perpendicular to the first face are included.

公开(公告)号：US10175816B2

公开(公告)日：2019-01-08

申请号：US15400498

申请日：2017-01-06

Applicant: Japan Display Inc.

Inventor： Hayato Kurasawa ,  Hiroshi Mizuhashi

IPC: G06F3/041 ,  G02F1/133 ,  G02F1/1333 ,  G02F1/1343 ,  G02F1/1362 ,  G02F1/1368 ,  G06F3/044

Abstract: A display device includes: a plurality of first electrodes arranged in a display region for displaying an image; a second electrode opposed to the first electrodes; a plurality of switching elements that are arranged in the display region and coupled to the first electrodes or the second electrode; a gate line for supplying a scanning signal for scanning the switching elements; a data line for supplying a signal to the switching elements that are coupled to the switching elements; and conductive wire that is opposed to the second electrode via an insulating layer and is coupled to the switching elements.

公开(公告)号：US10168819B2

公开(公告)日：2019-01-01

申请号：US14609990

申请日：2015-01-30

Applicant: Japan Display Inc.

Inventor： Koji Noguchi ,  Koji Ishizaki ,  Hayato Kurasawa

IPC: G06F3/041 ,  G06F3/044

Abstract: According to one embodiment, an electrostatic capacitance-type sensor-equipped display device includes a display panel with a display surface which displays an image. The sensor includes a plurality of detection electrodes disposed in a matrix, the detection electrodes being mutually electrically independently provided above the display surface and being configured to detect a variation in electrostatic capacitance, and a plurality of lead lines provided above the display surface, connected to the detection electrodes in a one-to-one correspondence, and formed of a metal.

公开(公告)号：US10152168B2

公开(公告)日：2018-12-11

申请号：US15162771

申请日：2016-05-24

Applicant: Japan Display Inc.

Inventor： Kazuyuki Kobayashi ,  Hayato Kurasawa ,  Hiroshi Mizuhashi ,  Masaya Tamaki ,  Takeo Koito ,  Koji Noguchi

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

Abstract: According to one embodiment, a sensor-equipped display device includes a display panel, a detection electrode, a conductive member arranged at intervals from the display panel and the detection electrode, and controller. In a first sense period, the controller drives a common electrode of the display panel or the detection electrode and extracts input position data from the detection electrode. In a second sense period, the controller drives the conductive member and extracts first input pressure data from a first electrode, the controller drives a second electrode and extracts second input pressure data from the conductive member, or the controller drives a third electrode and extracts third input pressure data from the third electrode.

公开(公告)号：US20180348915A1

公开(公告)日：2018-12-06

申请号：US16058565

申请日：2018-08-08

Applicant: Japan Display Inc.

Inventor： Koji Ishizaki ,  Hayato Kurasawa ,  Kohei Azumi

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

CPC classification number: G06F3/044 ,  G02F1/13338 ,  G02F1/133512 ,  G02F1/133514 ,  G02F1/134336 ,  G02F2201/123 ,  G02F2201/52 ,  G06F3/0412 ,  G06F3/0416 ,  G06F2203/04107 ,  G06F2203/04108 ,  G06F2203/04111 ,  G06F2203/04112

Abstract: According to an aspect, a display device with a touch detection function includes: a substrate; a drive electrode that extends in a first direction; and a plurality of touch detection electrodes that are metal wirings extending in a second direction different from the first direction. The metal wirings are arranged with a predetermined pitch so as to make capacitive coupling with the drive electrode.

公开(公告)号：US20180300009A1

公开(公告)日：2018-10-18

申请号：US15955038

申请日：2018-04-17

Applicant: Japan Display Inc.

Inventor： Hayato Kurasawa ,  Hiroshi Mizuhashi

IPC: G06F3/041 ,  G06F3/046 ,  G06F3/044 ,  G02F1/1343 ,  G02F1/1333 ,  G02F1/133 ,  G02F1/1335

CPC classification number: G06F3/0416 ,  G02F1/13306 ,  G02F1/13338 ,  G02F1/133553 ,  G02F1/134309 ,  G02F1/13439 ,  G02F2001/133357 ,  G02F2201/121 ,  G02F2201/123 ,  G06F3/0412 ,  G06F3/044 ,  G06F3/046

Abstract: A display device includes a substrate, pixel electrodes, a display functional layer, common electrodes, first electrodes, and a controller. The common electrodes and the first electrodes intersect with each other. The controller controls the pixel electrodes, the common electrodes, and the first electrodes in a plurality of display periods to display an image, a first sensing period, and a second sensing period. During the display periods, the pixel electrodes are supplied with a pixel signal, and the common electrodes are supplied with a common signal. During the first sensing period, the common electrodes are supplied with a first drive signal to generate a magnetic field, and an electromotive force caused by the magnetic field is generated in the first electrodes. During the second sensing period, the common electrodes are supplied with a second drive signal to generate electrostatic capacitance between the common electrodes and the first electrodes.

公开(公告)号：US10061422B2

公开(公告)日：2018-08-28

申请号：US15928508

申请日：2018-03-22

Applicant: Japan Display Inc.

Inventor： Takeo Koito ,  Koji Ishizaki ,  Hayato Kurasawa

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

CPC classification number: G06F3/0412 ,  G02F1/13338 ,  G06F3/044 ,  G06F2203/04112

Abstract: According to an aspect, a display device with a touch detecting function includes: a substrate; a display area; a touch detection electrode provided with a plurality of conductive thin wires, each of the conductive thin wires including a plurality of thin wire pieces each having a linear shape and including a first end and a second end; a drive electrode; and a display functional layer. The adjacent thin wire pieces are arranged so as to be bent at a bent portion serving as a portion at which the second end of the one thin wire piece of the adjacent thin wire pieces is connected to the first end of the other thin wire piece of the adjacent thin wire pieces, and the conductive thin wires include a bent portion having an angle formed by the adjacent thin wire pieces different from angles of the other bent portions.

公开(公告)号：US10061420B2

公开(公告)日：2018-08-28

申请号：US15631732

申请日：2017-06-23

Applicant: Japan Display Inc.

Inventor： Kohei Azumi ,  Hiroshi Mizuhashi ,  Hayato Kurasawa

IPC: G06F3/0488 ,  G06F3/041 ,  G09G3/36 ,  G06F3/044

CPC classification number: G06F3/0412 ,  G06F3/0416 ,  G06F3/044 ,  G09G3/3655

Abstract: A first substrate includes a gate line extending in a first direction, a source line extending in a second direction intersecting the first direction, a switching element which is connected to the gate line and the source line, and a pixel electrode which is connected to the switching element. The first substrate includes a common electrode which is opposed to the pixel electrode, and a detection electrode element necessary for sensing a state of closeness of a conductor brought externally, that extends parallel to the common electrode and is formed of a metallic material. By this structure, power consumption of a drive electrode of an input sensor can be reduced, and improvement of a drive frequency can be obtained.