公开(公告)号：US12111993B2

公开(公告)日：2024-10-08

申请号：US18516394

申请日：2023-11-21

Applicant: Japan Display Inc.

Inventor： Koji Ishizaki ,  Hayato Kurasawa ,  Kohei Azumi

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

CPC classification number: G06F3/0412 ,  G02F1/13338 ,  G02F1/133512 ,  G02F1/133514 ,  G02F1/134336 ,  G06F3/04166 ,  G06F3/0445 ,  G06F3/0446 ,  G02F2201/123 ,  G02F2201/52 ,  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：US20240256070A1

公开(公告)日：2024-08-01

申请号：US18632987

申请日：2024-04-11

Applicant: Japan Display Inc.

Inventor： Koji Noguchi ,  Yoshitoshi Kida ,  Kohei Azumi

IPC: G06F3/041 ,  G06F3/044 ,  G06F3/047 ,  G09G3/36 ,  G09G5/00 ,  G09G5/18

CPC classification number: G06F3/0412 ,  G06F3/04166 ,  G06F3/0418 ,  G06F3/04184 ,  G06F3/0445 ,  G06F3/0446 ,  G06F3/047 ,  G09G3/36 ,  G09G3/3677 ,  G09G5/003 ,  G09G5/18 ,  G09G3/3685 ,  G09G2300/0426 ,  G09G2310/0202 ,  G09G2310/0297 ,  G09G2310/08

Abstract: A display device is provided and includes signal line; pixel electrode; drive electrode opposed to pixel electrode; scanning lines; and display periods and a detection period in frame, wherein during one of display periods, common voltage is applied to drive electrode, scanning signal is applied to some scanning lines, pixel signal is applied to pixel electrode, wherein, during detection period, AC drive or pulse signal is applied to drive electrode, AC drive or pulse signal having pulses, wherein pulses during the detection period is less than number of some of scanning signal lines.

公开(公告)号：US11526224B2

公开(公告)日：2022-12-13

申请号：US17322059

申请日：2021-05-17

Applicant: Japan Display Inc.

Inventor： Koji Noguchi ,  Yoshitoshi Kida ,  Kohei Azumi

IPC: G06F3/041 ,  G06F3/047 ,  G09G5/00 ,  G09G5/18 ,  G09G3/36 ,  G06F3/044

Abstract: A display device is provided and includes scanning and signal lines; switch electrically coupled to scanning and signal lines; pixel electrode electrically coupled to switch and opposed to drive electrode; first and second display periods, and detection period between first and second display periods, wherein during first and second display periods, common voltage is applied to drive electrode, scanning signal is applied to scanning line and switch, pixel signal is applied to pixel electrode through signal line and switch, during detection period, AC drive signal or pulse drive signal is applied to drive electrode, and scanning signal is not applied to scanning line.

公开(公告)号：US10775923B2

公开(公告)日：2020-09-15

申请号：US16362211

申请日：2019-03-22

Applicant: Japan Display Inc.

Inventor： Hayato Kurasawa ,  Koji Ishizaki ,  Kohei Azumi

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

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.

公开(公告)号：US10761647B2

公开(公告)日：2020-09-01

申请号：US16238833

申请日：2019-01-03

Applicant: Japan Display Inc.

Inventor： Kohei Azumi ,  Hidetoshi Komatsu ,  Jin Ota ,  Hiroshi Mizuhashi ,  Makoto Hayashi

IPC: G06F3/041 ,  G06F3/044 ,  G09G3/36 ,  G11C19/28

Abstract: According to one embodiment, the touch drive device includes a plurality of drive electrodes arranged side by side to extend in a single direction, a detection electrode which extends in a direction crossing the direction in which the drive electrodes extend, and generates capacitances at intersections of the detection electrode and the drive electrodes, and a driver (DDI) which groups the drive electrodes into a plurality of drive electrode portions each including at least one drive electrode, and performs a touch scanning drive by supplying a touch drive signal (TSVCOM) having a pulse waveform for detection of a closely situated external object to a target drive electrode portion which is a selected one of the drive electrode portions. The number of the drive electrodes included in each of the drive electrode portions and the target drive electrode portion to which the touch drive signal. (TSVCOM) is supplied can be designated.

公开(公告)号：US20190391695A1

公开(公告)日：2019-12-26

申请号：US16563405

申请日：2019-09-06

Applicant: Japan Display Inc.

Inventor： Koji Noguchi ,  Yoshitoshi Kida ,  Kohei Azumi

IPC: G06F3/041 ,  G06F3/047 ,  G09G5/00 ,  G09G5/18 ,  G09G3/36 ,  G06F3/044

Abstract: A display device is provided and includes scanning signal lines including a first scanning signal line; pixel signal lines including a first pixel signal line; switch elements including a first switch being electrically coupled to the first scanning signal line and the pixel signal line; pixel electrodes including a first pixel electrode being electrically coupled to the first switch element; drive electrodes including a first drive electrode opposed to the first pixel electrode; a driver configured to drive the scanning signal lines, the pixel signal lines, and the drive electrodes; and a controller configured to control the driver in a frame.

公开(公告)号：US10191586B2

公开(公告)日：2019-01-29

申请号：US15944243

申请日：2018-04-03

Applicant: Japan Display Inc.

Inventor： Yoshitoshi Kida ,  Makoto Hayashi ,  Kohei Azumi ,  Shinya Iuchi ,  Fumitaka Gotoh

IPC: G06F3/033 ,  G06F3/0354 ,  G06F3/041 ,  G06F3/044 ,  G06F3/038

Abstract: In a display apparatus, a touch panel where driving and sensing electrodes face each other across a dielectric substance outputs a detection signal from the sensing electrode in synchronization with a driving signal applied to the driving electrode. A pointing device points to a position on a touch surface of the touch panel. A detection assisting device includes an inverting circuit for obtaining a detection driving signal corresponding to the driving signal and inverting the phase thereof to generate an inversion signal, and outputs the inversion signal to the sensing electrode via the pointing device. A control device applies the driving signal to the driving electrode, obtains the detection signal generated at the sensing electrode according to the mutual capacitance between the driving and sensing electrodes and the inversion signal, and detects the pointing device in contact with or proximity to the touch panel based on the detection signal.

公开(公告)号：US10175818B2

公开(公告)日：2019-01-08

申请号：US15831495

申请日：2017-12-05

Applicant: Japan Display Inc.

Inventor： Shigesumi Araki ,  Mitsutaka Okita ,  Kazuhiro Nishiyama ,  Yoshitoshi Kida ,  Koji Ishizaki ,  Kohei Azumi ,  Hiroshi Mizuhashi

IPC: G06F3/041 ,  G02F1/1362 ,  G02F1/1333 ,  G06F3/044 ,  G09G3/36 ,  G02F1/1335 ,  G02F1/1343 ,  G02F1/1345

Abstract: A display device is configured that the common electrode wiring layer is divided in a source wiring layer direction, the metal wiring layer is disposed above the source wiring layer at a position in contact with the upper part of the common electrode wiring layer, and the metal wiring layer is not disposed at a position where the common electrode wiring layer is divided. Alternatively, the metal wiring layer is not disposed at a position between the same colors as those at the division position of the common electrode wiring layer.

公开(公告)号：US09933892B2

公开(公告)日：2018-04-03

申请号：US15265383

申请日：2016-09-14

Applicant: Japan Display Inc.

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

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

CPC classification number: G06F3/0416 ,  G02F1/13338 ,  G02F1/133528 ,  G02F1/134363 ,  G02F2001/134318 ,  G06F3/0412 ,  G06F3/044 ,  G06F2203/04103 ,  Y10T29/49117

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：US09804704B2

公开(公告)日：2017-10-31

申请号：US15446728

申请日：2017-03-01

Applicant: Japan Display Inc.

Inventor： Kohei Azumi ,  Yoshitoshi Kida ,  Hayato Kurasawa

IPC: G06F3/045 ,  G06F3/044 ,  G06F3/041

CPC classification number: G06F3/0416 ,  G06F3/0412 ,  G06F3/044 ,  G06F2203/04108 ,  G06F2203/04803

Abstract: According to an aspect, a touch detecting device includes: a first drive area and a second drive area each including drive electrodes and detection electrodes, the drive electrodes extending in a first direction, being arrayed in a second direction intersecting with the first direction, and being applied with a drive signal, the detection electrodes extending in the second direction, being arrayed in the first direction, and outputting a detection signal. Application of the drive signal to the drive electrodes in the second drive area is stopped at a timing to apply the drive signal to the drive electrodes arranged in a first predetermined area included in the first drive area, and application of the drive signal to the drive electrodes in the first drive area is stopped at a timing to apply the drive signal to a second predetermined area included in the second drive area.