公开(公告)号：US10156948B2

公开(公告)日：2018-12-18

申请号：US15223377

申请日：2016-07-29

Applicant: Japan Display Inc.

Inventor： Koji Ishizaki ,  Koji Noguchi ,  Osamu Ishige

IPC: G06F3/041 ,  G06F3/045 ,  G06F3/044 ,  G09G5/00 ,  B32B7/00

Abstract: A display device with a touch detection function including: a plurality of liquid crystal display elements performing display operation; a plurality of touch detection electrodes arranged side by side to extend in one direction, and each outputting a detection signal based on a change in an electrostatic capacitance caused by an external proximity object; a conductive film insulated from or connected with high resistance to the touch detection electrodes, and disposed to cover the touch detection electrodes; and a touch detection circuit detecting the external proximity object by sampling the detection signal. The conductive film has a sheet resistance equal to or smaller than a predetermined resistance value, and has a time constant larger than a predetermined minimum time constant defined by sampling timings in the touch detection circuit.

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：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：US20180300010A1

公开(公告)日：2018-10-18

申请号：US16011012

申请日：2018-06-18

Applicant: Japan Display Inc.

Inventor： Takayuki Nakanishi ,  Koji Noguchi ,  Koji Ishizaki ,  Yasuyuki Teranishi ,  Takeya Takeuchi

IPC: G06F3/041 ,  G09G5/18 ,  G02F1/1343 ,  G06F3/044 ,  G02F1/1333 ,  G02F1/1368 ,  G02F1/1335

CPC classification number: G06F3/0416 ,  G02F1/13338 ,  G02F1/133528 ,  G02F1/134309 ,  G02F1/13439 ,  G02F1/1368 ,  G02F2201/121 ,  G02F2201/123 ,  G02F2203/01 ,  G06F3/0412 ,  G06F3/044 ,  G06F2203/04101 ,  G06F2203/04103 ,  G06F2203/04108 ,  G06F2203/04111 ,  G09G5/18 ,  G09G2300/0426

Abstract: An information input device including a touch panel configured to be provided with a touch sensor that detects a position at which a sensing object is brought close to a sensing surface. In this information input device, the touch sensor has a scanning electrode and a detecting electrode that is opposed to the scanning electrode with the intermediary of a dielectric substance, and is a capacitive sensor whose electrostatic capacitance changes if the sensing object is brought close to the detecting electrode. Furthermore, a slit is formed in a surface of the detecting electrode opposed to the scanning 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.

公开(公告)号：US10031630B2

公开(公告)日：2018-07-24

申请号：US15187065

申请日：2016-06-20

Applicant: Japan Display Inc.

Inventor： Koji Ishizaki ,  Hayato Kurasawa ,  Hiroshi Mizuhashi

IPC: G06F3/044

Abstract: To provide a display capable of reducing each resistance of a drive electrode and a detection electrode, in the display which is provided with an input device having the drive electrode and the detection electrode formed on the same plane.A drive electrode includes a plurality of first electrode portions arranged in an X-axis direction, and a plurality of first connection portions each of which electrically connects the two first electrode portions adjacent to each other. A detection electrode includes a plurality of second electrode portions arranged in a Y-axis direction, and a plurality of second connection portions each of which electrically connects the two second electrode portions adjacent to each other. The first connection portion overlaps with the second connection portion in a planar view. Each of the first electrode portion and the second electrode portion contains metal or alloy, and has a mesh shape.

公开(公告)号：US09927646B2

公开(公告)日：2018-03-27

申请号：US14798727

申请日：2015-07-14

Applicant: Japan Display Inc.

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

IPC: G06F3/045 ,  G02F1/1333 ,  G02F1/1335 ,  G06F3/041 ,  G06F3/044

CPC classification number: G02F1/13338 ,  G02F1/133528 ,  G06F3/0412 ,  G06F3/044 ,  G06F2203/04101 ,  G06F2203/04112

Abstract: According to one embodiment, a display device comprises a display panel, a metal layer, a coat layer, a cover member and an adhesive layer. The display panel comprises a principal surface including a display area in which an image is displayed. The metal layer is provided on the principal surface. The coat layer covers the metal layer and is in contact with the principal surface. The cover member faces the coat layer. The adhesive layer bonds the cover member to the coat layer and continuously covers the principal surface and at least a part of an outer edge of the coat layer.

公开(公告)号：US09791984B2

公开(公告)日：2017-10-17

申请号：US14734465

申请日：2015-06-09

Applicant: Japan Display Inc.

Inventor： Hayato Kurasawa ,  Koji Ishizaki

IPC: G06F3/044 ,  G06F3/041

CPC classification number: G06F3/044 ,  G06F3/0412 ,  G06F3/0416 ,  G06F2203/04101 ,  G06F2203/04112

Abstract: A sensor-equipped display device is provided and includes a display panel and a detection electrode. The panel includes a display area in which unit pixels are arranged in a matrix, each of unit pixels including subpixels. The electrode includes conductive line fragments arranged on a detection surface, and is configured to detect a contact of an object to the surface. The detection electrode has an electrode pattern formed of the line fragments on a grid defined by first and second lines. Extending directions of the first and second lines are tilted based on a first and second unit length of the unit pixel in the first and second direction.

公开(公告)号：US09733507B2

公开(公告)日：2017-08-15

申请号：US14151334

申请日：2014-01-09

Applicant: Japan Display Inc.

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

IPC: G02F1/1333 ,  G02F1/1345 ,  H01L27/12 ,  G02F1/1335

CPC classification number: G02F1/13338 ,  G02F1/1333 ,  G02F1/133528 ,  G02F1/13452 ,  G02F2001/133302 ,  G02F2001/133368 ,  G02F2201/56 ,  G02F2202/28 ,  H01L27/1218

Abstract: Warpage deformation which is caused when substrates having mutually different linear expansion coefficients are bonded to sandwich a display functional layer is suppressed. A display device has a first substrate, a second substrate bonded to the first substrate so as to be opposed to the first substrate, and a liquid crystal layer serving as a display functional layer disposed between the first substrate and the second substrate. Also, a first linear expansion coefficient of the first substrate provided in the display device is larger than a second linear expansion coefficient of the second substrate, and a first thickness of the first substrate is larger than a second thickness of the second substrate.

公开(公告)号：US09710100B2

公开(公告)日：2017-07-18

申请号：US14850392

申请日：2015-09-10

Applicant: Japan Display Inc.

Inventor： Hayato Kurasawa ,  Koji Ishizaki ,  Kohei Azumi

IPC: G06F3/041 ,  G06F3/044 ,  G09G3/36 ,  G06T5/20 ,  G09G3/20

CPC classification number: G06F3/0416 ,  G06F3/0412 ,  G06F3/044 ,  G06F2203/04103 ,  G06T5/20 ,  G09G3/2074 ,  G09G3/3655 ,  G09G3/3696 ,  G09G2300/0426

Abstract: A display device includes: a display layer; plural first electrodes formed to be arranged above the display layer; a shield electrode formed apart from the plural first electrodes so as to surround the whole plural first electrodes along an arrangement surface; an insulating layer; and a semiconductive layer formed opposite to the first electrodes and the shield electrode so as to sandwich the insulating layer, wherein the difference between an average potential of the first electrodes and an average potential of the shield electrode is equal to or less than 0.5V.