公开(公告)号：US20210294453A1

公开(公告)日：2021-09-23

申请号：US17339203

申请日：2021-06-04

Applicant: Japan Display Inc.

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

IPC: G06F3/041 ,  G06F3/044

Abstract: A touch panel, a display panel, and a display unit achieving prevention of erroneous detection caused by external noise. The touch panel includes: a plurality of detection scan electrodes extending in a first direction and a plurality of detection electrodes facing the plurality of detection scan electrodes and extending in a second direction which intersects the first direction. A ratio of fringe capacitance to total capacitance between one or more selected detection scan electrodes and a first detection electrode is different from a ratio of fringe capacitance to total capacitance between the one or more selected detection scan electrodes and a second detection electrode. The one or more selected detection scan electrodes are selected, in a desired unit, from the plurality of detection scan electrodes, to be supplied with a selection pulse, and each of the first and the second detection electrodes is selected from the plurality of detection electrodes.

公开(公告)号：US11119594B2

公开(公告)日：2021-09-14

申请号：US16451106

申请日：2019-06-25

Applicant: Japan Display Inc.

Inventor： Koji Ishizaki ,  Koji Noguchi ,  Osamu Ishige

IPC: G06F3/041 ,  G06F3/044

Abstract: A display device with a touch detection function including: a plurality of 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：US11016593B2

公开(公告)日：2021-05-25

申请号：US16590901

申请日：2019-10-02

Applicant: Japan Display Inc.

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

IPC: G06F3/045 ,  G06F3/041 ,  G02F1/1343 ,  G02F1/1333 ,  G06F3/044 ,  G02F1/133

Abstract: According to one embodiment, a sensor device is provided and including electrodes each including a first line, a second line, and a third line; and a lead line connected to one of the electrodes at a first end portion of the one of the electrodes, wherein the first to third lines are electrically connected to each other, the first line runs in a first direction, the second line runs in a second direction different from the first direction, and intersects the first line, the electrodes are arranged in a third direction different from the first and second directions, the third line runs in the third direction and located along the first end portion, the lead line is drawn from the third line, and detection signals are detected by the electrodes.

公开(公告)号：US10996784B2

公开(公告)日：2021-05-04

申请号：US16826407

申请日：2020-03-23

Applicant: Japan Display Inc.

Inventor： Koji Ishizaki ,  Hayato Kurasawa ,  Kohei Azumi

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

Abstract: A display device with a touch detection device is provided and includes display elements arranged in matrix of row and column direction and surrounded by scan lines each extending in a first direction and a signal lines each extending in a second direction, the display elements including a red display element, a green display element, and a blue display element; light shielding members each extending in one direction, the light shielding members arranged between the display elements adjacent to each other; and touch detection electrodes each extending in the one direction and arranged between the light shielding members and the display elements, and the touch detection electrodes including metal wires that extend overlapping the light shielding members, Wherein the metal wires are divided into metal wire parts that are arranged in the column direction, and the metal wire parts, each being longitudinal in the one direction, are disposed without crossing each other and spaced from each other in the one direction.

公开(公告)号：US10903243B2

公开(公告)日：2021-01-26

申请号：US16124510

申请日：2018-09-07

Applicant: Japan Display Inc.

Inventor： Yoshitaka Ozeki ,  Nobutaka Ozaki ,  Koshiro Moriguchi ,  Takahiro Takeuchi ,  Koji Ishizaki

IPC: G02B26/00 ,  H01L27/12 ,  H01L27/32 ,  G02F1/1368 ,  G02F1/1333 ,  G02F1/167 ,  G02F1/16766 ,  G02F1/1345 ,  G02F1/1675 ,  G09G3/36 ,  G09G3/3225 ,  G02F1/1339 ,  G09G3/34 ,  G02F1/1676 ,  G02F1/1681 ,  G02F1/16757 ,  G02F1/16756 ,  G02F1/1362

Abstract: According to one embodiment, there is provided a display device including a basement, a first switching element which is provided on the basement and includes a first semiconductor layer and a first gate electrode, a second switching element which is provided on the basement and includes a second semiconductor layer and a second gate electrode, and a pixel electrode which is electrically connected to the first switching element. A distance between the first semiconductor layer and the first gate electrode is greater than a distance between the second semiconductor layer and the second gate electrode.

公开(公告)号：US10802319B2

公开(公告)日：2020-10-13

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：US10775951B2

公开(公告)日：2020-09-15

申请号：US16546696

申请日：2019-08-21

Applicant: Japan Display Inc.

Inventor： Hayato Kurasawa ,  Keisuke Asada ,  Tatsuya Ide ,  Koji Ishizaki

IPC: G06F3/045 ,  G06F3/044 ,  G06F3/041 ,  H05K1/11 ,  G02F1/1333 ,  H05K1/02 ,  H05K1/14 ,  H05K3/28 ,  H05K3/36

Abstract: According to one embodiment, a detection device includes a substrate, detection electrode, terminal formed of a metal material, lead, coating layer, conductive adhesion layer, and circuit board. The lead connects the electrode and the terminal. The coating layer covers the electrode and the lead, and partly covers the terminal. The adhesion layer covers a part of the terminal exposed from the coating layer and covers a part of the coating layer. The circuit board is connected to the terminal with the adhesion layer interposed therebetween. At least in an overlapping area where the adhesion layer covers the coating layer, an area of the metal material per unit area is smaller than that of the other area of the terminal.

公开(公告)号：US10698512B2

公开(公告)日：2020-06-30

申请号：US14636245

申请日：2015-03-03

Applicant: Japan Display Inc.

Inventor： Koji Ishizaki ,  Toshimasa Ishigaki ,  Daisuke Sonoda

IPC: G06F3/041 ,  G02F1/1333 ,  G06F3/044 ,  G06F1/16

Abstract: An electrode substrate includes a sensing electrode formed on a glass substrate, a concave/convex pattern formed on the glass substrate, and a protective film formed so as to cover the sensing electrode. The concave/convex pattern is disposed closer to an outer periphery of the glass substrate than the sensing electrode is when seen in a plan view. The protective film is formed so as to cover a part of the glass substrate positioned between the sensing electrode and the concave/convex pattern when seen in a plan view.

公开(公告)号：US10698511B2

公开(公告)日：2020-06-30

申请号：US16108687

申请日：2018-08-22

Applicant: Japan Display Inc.

Inventor： Koji Ishizaki ,  Koji Noguchi ,  Masanobu Ikeda ,  Yasuyuki Matsui

IPC: G06F3/041 ,  G06F3/044 ,  G02F1/1333 ,  G02F1/1343 ,  G02F1/1337 ,  G09G3/36

Abstract: There are provided a display panel with a touch detector that allows the touch detection electrodes to be less visible, a touch panel, and an electronic unit having the display panel with a touch detector. The display panel with a touch detector includes: a display layer including a plurality of display elements arranged side by side; and an electrode layer alternately segmented into first regions and second regions along a first direction, the electrode layer including a plurality of first slits arranged side by side to extend in a second direction, and a plurality of second slits each allowing an adjacent pair of the plurality of first slits in the second regions to be in communication with one another.

公开(公告)号：US10678362B2

公开(公告)日：2020-06-09

申请号：US16364885

申请日：2019-03-26

Applicant: Japan Display Inc.

Inventor： Koji Ishizaki ,  Hayato Kurasawa

IPC: G06F3/041 ,  H01L27/12 ,  G02F1/1362 ,  G02F1/1343 ,  G02F1/1345 ,  G02F1/1333 ,  G06F3/044 ,  G02F1/1341 ,  G02F1/1339

Abstract: According to an aspect, a display device with a touch detection function includes: a touch detection electrode that detects proximity or contact of an object; a drive electrode to which the excitation signal is applied; a first substrate on which the drive elements are provided; a second substrate on which at least one of the touch detection electrode and the drive electrode is provided, the second substrate being bonded to the first substrate to face each other via a sealing member; a conductor that electrically is coupled to at least one of the touch detection electrode and the drive electrode; and a conductor support member that fills a space between the first substrate and the second substrate and on the surface of which the conductor is provided.