公开(公告)号：US20210278950A1

公开(公告)日：2021-09-09

申请号：US17317163

申请日：2021-05-11

Applicant: Japan Display Inc.

Inventor： Hayato Kurasawa ,  Shoji Hinata ,  Toshinori Uehara ,  Hiroshi Mizuhashi ,  Yuji Suzuki ,  Yasuhiro Kanaya

IPC: G06F3/041 ,  G06K9/00 ,  G06F3/044

Abstract: Included are a first cover base including an alkali glass layer, a first alkali-free glass layer provided on one face of the alkali glass layer, and a second alkali-free glass layer provided on another face of the alkali glass layer and a sensor that is provided on the first alkali-free glass layer of the first cover base and includes a plurality of first electrodes configured to detect the unevenness of a surface of an object to be detected that comes into contact with or close to the first cover base and a switching element. At least the first electrodes are formed above the first alkali-free glass layer and in a transmissive area that passes an image.

公开(公告)号：US11054954B2

公开(公告)日：2021-07-06

申请号：US16828296

申请日：2020-03-24

Applicant: Japan Display Inc.

Inventor： Hayato Kurasawa ,  Yoshitaka Ozeki ,  Toshinori Uehara ,  Yuji Suzuki

IPC: G06F3/044 ,  G06F3/042 ,  G06K9/00

Abstract: According to an aspect, a fingerprint detection device includes: a substrate; a plurality of drive electrodes provided on one surface side of the substrate and arranged in a first direction; a plurality of detection electrodes provided on the one surface side and arranged in a second direction intersecting the first direction; and an insulating layer provided in a normal direction of the substrate between each of the drive electrodes and the corresponding detection electrodes. The detection electrodes intersect the drive electrodes in the normal direction of the substrate. The detection electrodes include: a first metallic layer; and a second metallic layer positioned closer to the one surface than the first metallic layer to the one surface. The first metallic layer has a reflectance of visible light lower than that of the second metallic layer.

公开(公告)号：US10564487B2

公开(公告)日：2020-02-18

申请号：US15682945

申请日：2017-08-22

Applicant: Japan Display Inc.

Inventor： Daichi Suzuki ,  Hiroshi Mizuhashi ,  Hayato Kurasawa ,  Yuji Suzuki

IPC: G02F1/1343 ,  H01L27/12 ,  G02F1/1362 ,  G02F1/1335 ,  H01Q1/24 ,  H01Q7/00

Abstract: According to one embodiment, an electronic device includes a first substrate including a first conductive layer, and a second substrate including a second conductive layer which is connected to the first conductive layer and which has a thickness larger than a thickness of the first conductive layer, a bridge line which has a thickness larger than the thickness of the first conductive layer and which is connected to the second conductive layer, and an insulating layer which is located between the second conductive layer and the bridge line. The first conductive layer, the second conductive layer and the bridge line form a coil.

公开(公告)号：US10108839B2

公开(公告)日：2018-10-23

申请号：US15605598

申请日：2017-05-25

Applicant: Japan Display Inc.

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

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

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：US20180011601A1

公开(公告)日：2018-01-11

申请号：US15642792

申请日：2017-07-06

Applicant: Japan Display Inc.

Inventor： Hayato Kurasawa ,  Shoji Hinata ,  Toshinori Uehara ,  Hiroshi Mizuhashi ,  Yuji Suzuki ,  Yasuhiro Kanaya

IPC: G06F3/041 ,  G06F3/044 ,  G06K9/00

CPC classification number: G06F3/0418 ,  G06F3/0412 ,  G06F3/0416 ,  G06F3/044 ,  G06F2203/0338 ,  G06F2203/04107 ,  G06F2203/04108 ,  G06K9/0002

Abstract: Included are a first cover base including an alkali glass layer, a first alkali-free glass layer provided on one face of the alkali glass layer, and a second alkali-free glass layer provided on another face of the alkali glass layer and a sensor that is provided on the first alkali-free glass layer of the first cover base and includes a plurality of first electrodes configured to detect the unevenness of a surface of an object to be detected that comes into contact with or close to the first cover base and a switching element. At least the first electrodes are formed above the first alkali-free glass layer and in a transmissive area that passes an image.

公开(公告)号：US20170372110A1

公开(公告)日：2017-12-28

申请号：US15605598

申请日：2017-05-25

Applicant: Japan Display Inc.

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

IPC: G06K9/00

CPC classification number: G06K9/0002 ,  G06F3/03547 ,  G06F3/041 ,  G06F3/044 ,  G06F21/32 ,  G06F2203/0338

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：US20170277344A1

公开(公告)日：2017-09-28

申请号：US15461608

申请日：2017-03-17

Applicant: Japan Display Inc.

Inventor： Hayato Kurasawa ,  Yuji Suzuki ,  Hiroshi Mizuhashi

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

CPC classification number: G06F3/0416 ,  G02F1/13338 ,  G02F1/134309 ,  G02F2201/122 ,  G06F3/03545 ,  G06F3/0412 ,  G06F3/044 ,  G06F3/046 ,  G06F2203/04106 ,  G06F2203/04108 ,  G06F2203/04112

Abstract: A display apparatus capable of reducing the lowering of detection sensitivity is provided. A display apparatus provided with a pixel array having a plurality of pixels arranged in a matrix form includes: detection electrodes which are in parallel with each other, which are arranged so as to extend in a first direction, and which are connected so as to form a magnetic-field detection coil; and a detection electrode having one end which is arranged inside the magnetic-field detection coil and which is connected to the magnetic-field detection coil, and the other end which is electrically insulated from the magnetic-field detection coil. At the time of each of the magnetic field detection and the electric field detection, an external object is detected based on a change in a signal in the detection electrodes.