公开(公告)号：US12242701B2

公开(公告)日：2025-03-04

申请号：US18500172

申请日：2023-11-02

Applicant: Japan Display Inc.

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

IPC: G06F3/044 ,  G06F3/0354 ,  G06F3/041 ,  G06F3/047 ,  G09G3/298 ,  G09G3/36 ,  H01J11/12 ,  G02F1/1343

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. 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：US12124663B2

公开(公告)日：2024-10-22

申请号：US18220457

申请日：2023-07-11

Applicant: Japan Display Inc.

Inventor： Koji Ishizaki ,  Hayato Kurasawa ,  Hiroshi Mizuhashi

IPC: G06F3/044

CPC classification number: G06F3/0446 ,  G06F3/044 ,  G06F2203/04103

Abstract: An input device is provided and includes substrate; first metal mesh shape electrodes provided on layer of substrate; second metal mesh shape electrodes provided on same layer of the substrate as first metal mesh shape electrodes; second metal connection electrodes each of which connects adjacent two of second metal mesh shape electrodes on same layer as first metal mesh shape electrodes; insulating film covering second metal connection electrodes; first transparent connection electrodes each of which connects adjacent two of first metal mesh shape electrodes on insulating film; and protective film covering first metal mesh shape electrodes, second metal mesh shape electrodes, and first transparent connection electrodes.

公开(公告)号：US12079409B2

公开(公告)日：2024-09-03

申请号：US18195511

申请日：2023-05-10

Applicant: Japan Display Inc.

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

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

CPC classification number: G06F3/0412 ,  G02F1/133 ,  G02F1/13338 ,  G02F1/1343 ,  G06F3/04164 ,  G06F3/0445 ,  G06F3/0446

Abstract: A sensor device is provided and includes electrodes each including first parts arranged in a first direction and a second part connected to the first parts, the first parts each having a first mesh shape which is formed of first metal wires, and the second part having a second mesh shape which is formed of second metal wires, wherein a longitudinal direction of the second part is the first direction, and at least one of the first mash shape and the second mash shape has an intersection portion at which two of the first metal wires or two of the second metal wires intersect.

公开(公告)号：US12025874B2

公开(公告)日：2024-07-02

申请号：US18131906

申请日：2023-04-07

Applicant: Japan Display Inc.

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

IPC: G06F3/044 ,  G02F1/1333 ,  G09G3/36

CPC classification number: G02F1/13338 ,  G06F3/044 ,  G06F3/0445 ,  G06F3/0446 ,  G09G3/3648 ,  G09G2300/0426 ,  G09G2310/0232 ,  G09G2310/08 ,  G09G2330/06

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：US11960673B2

公开(公告)日：2024-04-16

申请号：US18164753

申请日：2023-02-06

Applicant: Japan Display Inc.

Inventor： Koji Ishizaki ,  Kouji Noguchi

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

CPC classification number: G06F3/0412 ,  G02F1/13306 ,  G02F1/13338 ,  G02F1/133514 ,  G02F1/133528 ,  G02F1/134309 ,  G06F3/0445 ,  G06F3/0446

Abstract: A display device including a substrate, a plurality of pixel electrodes arranged in a form of a matrix in a plane parallel with the substrate, a display functional layer exerting an image display function on a basis of an image signal supplied to the plurality of pixel electrodes, a driving electrode opposed to the plurality of pixel electrodes, and a plurality of detecting electrodes arranged in a form of a plane opposed to the driving electrode, separated and arranged at a pitch of a natural number multiple of an arrangement pitch of the pixel electrodes in one direction in the arrangement plane, and each capacitively coupled with the driving electrode.

公开(公告)号：US11740747B2

公开(公告)日：2023-08-29

申请号：US17706051

申请日：2022-03-28

Applicant: Japan Display Inc.

Inventor： Hayato Kurasawa ,  Kohei Azumi ,  Koji Ishizaki ,  Hideki Kaneko ,  Tsutomu Harada

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

CPC classification number: G06F3/0445 ,  G02F1/13338 ,  G02F1/133528 ,  G02F1/134363 ,  G06F3/044 ,  G06F3/0412 ,  G06F3/0416 ,  G06F3/0446 ,  G06F3/04164 ,  G02F1/134318 ,  G06F2203/04103 ,  Y10T29/49117

Abstract: Display device is provided and includes display part including first and second substrates, first and second polarizing plates, display area that includes pixel electrodes, a common electrode and display functional layer each of which is arranged between first and second substrates, display image formed by applying display voltage between pixel electrodes and common electrode in display period, input part including third substrate having back surface facing front surface of display part, detection electrodes formed on back surface of third substrate, and conductive layer provided between back surface of third substrate and front surface of display part, wherein conductive layer overlaps third substrate without through detection electrodes outside display area, and part of detection electrodes is uncovered by conductive layer outside display area.

公开(公告)号：US11327591B2

公开(公告)日：2022-05-10

申请号：US17208341

申请日：2021-03-22

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：US11287934B2

公开(公告)日：2022-03-29

申请号：US16918404

申请日：2020-07-01

Applicant: Japan Display Inc.

Inventor： Hayato Kurasawa ,  Kohei Azumi ,  Koji Ishizaki ,  Hideki Kaneko ,  Tsutomu Harada

IPC: G02F1/1335 ,  G06F3/041 ,  G06F3/045 ,  G06F3/044 ,  G02F1/1333 ,  G02F1/1343

Abstract: The reliability of a display device with an input device is improved. A plurality of detection electrodes (input position detection electrodes) forming an electrostatic capacity between them and a common electrode of a display device to detect an input position are formed on a different substrate from substrates configuring the display device. Moreover, a polarizing plate and the substrate on which the plurality of detection electrodes are formed are adhesively fixed via, for example, an adhesive layer so that the plurality of detection electrodes are fixed so as to be separated apart from the display device. Thus, a distance between electrodes (the detection electrode and a driving electrode) for detecting an input position can be set separately from a thickness of the display device, and therefore, reduction in detection sensitivity (detection reliability) for the input position due to increase in the electrostatic capacity can be suppressed.

公开(公告)号：US11068097B2

公开(公告)日：2021-07-20

申请号：US16839513

申请日：2020-04-03

Applicant: Japan Display Inc.

Inventor： Koji Ishizaki ,  Kouji Noguchi

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

Abstract: A display device including a substrate, a plurality of pixel electrodes arranged in a form of a matrix in a plane parallel with the substrate, a display functional layer exerting an image display function on a basis of an image signal supplied to the plurality of pixel electrodes, a driving electrode opposed to the plurality of pixel electrodes, and a plurality of detecting electrodes arranged in a form of a plane opposed to the driving electrode, separated and arranged at a pitch of a natural number multiple of an arrangement pitch of the pixel electrodes in one direction in the arrangement plane, and each capacitively coupled with the driving electrode.

公开(公告)号：US10692448B2

公开(公告)日：2020-06-23

申请号：US14739707

申请日：2015-06-15

Applicant: Japan Display Inc.

Inventor： Yoshitoshi Kida ,  Kohei Azumi ,  Koji Noguchi ,  Koji Ishizaki

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

Abstract: A display unit with touch detection function includes a plurality of pixel signal lines each transmitting a pixel signal for display; a pixel signal line drive section applying the pixel signal to each of the pixel signal lines; display elements each performing display based on the pixel signal; touch detection electrodes each outputting a detection signal based on a change in capacitance occurring due to an external proximity object; and a touch detection section detecting, in a touch detection period, a touch event based on the detection signal, the touch detection period being different from a display period for the display elements to perform display operation. The pixel signal line drive section maintains a voltage of each of the pixel signal lines at a certain level during the touch detection period.