公开(公告)号：US10788942B2

公开(公告)日：2020-09-29

申请号：US16571754

申请日：2019-09-16

Applicant: Japan Display Inc.

Inventor： Koji Ishizaki ,  Hayato Kurasawa ,  Hiroshi Mizuhashi

IPC: G06F3/044

Abstract: An input device is provided and including a substrate; a plurality of first metal or alloy electrodes provided along a first direction on a main surface of the substrate; a plurality of second metal or alloy electrodes provided along a second direction intersecting with the first direction on the same surface as the main surface; and a protective film covering the plurality of first metal or alloy electrodes and the plurality of second metal or alloy electrodes.

公开(公告)号：US10739905B2

公开(公告)日：2020-08-11

申请号：US16124355

申请日：2018-09-07

Applicant: Japan Display Inc.

Inventor： Kazuyuki Kobayashi ,  Hayato Kurasawa ,  Hiroshi Mizuhashi ,  Masaya Tamaki ,  Takeo Koito ,  Koji Noguchi

IPC: G06F3/041 ,  G06F3/044 ,  G09G3/36 ,  F21V8/00

Abstract: According to one embodiment, a sensor-equipped display device includes a display panel, a detection electrode, a conductive member arranged at intervals from the display panel and the detection electrode, and controller. In a first sense period, the controller drives a common electrode of the display panel or the detection electrode and extracts input position data from the detection electrode. In a second sense period, the controller drives the conductive member and extracts first input pressure data from a first electrode, the controller drives a second electrode and extracts second input pressure data from the conductive member, or the controller drives a third electrode and extracts third input pressure data from the third electrode.

公开(公告)号：US10739903B2

公开(公告)日：2020-08-11

申请号：US15858380

申请日：2017-12-29

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

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：US10713462B2

公开(公告)日：2020-07-14

申请号：US16261063

申请日：2019-01-29

Applicant: Japan Display Inc.

Inventor： Hayato Kurasawa ,  Toshinori Uehara ,  Hiroshi Mizuhashi

IPC: G06K9/00

Abstract: A fingerprint detection device includes: a substrate having a first surface and a second surface on an opposite side of the first surface, the first surface serving as a detection surface configured to detect unevenness of an object in contact or in proximity; a detection electrode provided on the second surface side of the substrate and configured to detect unevenness of a finger in contact or in proximity on the basis of an electrostatic capacitance change; and a drive circuit provided on the second surface side of the substrate and configured to supply a drive signal to the detection electrode.

公开(公告)号：US10670903B2

公开(公告)日：2020-06-02

申请号：US15938622

申请日：2018-03-28

Applicant: Japan Display Inc.

Inventor： Koji Ishizaki ,  Hayato Kurasawa ,  Masanobu Ikeda

IPC: G02F1/1333 ,  G02F1/1345 ,  G06F3/041 ,  G06F3/044 ,  G02F1/1339

Abstract: According to one embodiment, a display device comprises a first substrate includes a first area, a second area adjacent to the first area, and a first terminal portion located in the first area, and a second substrate includes an edge including a linear portion located between the first area and the second area, the second substrate overlapping the second area, wherein the second substrate further comprises a protruding portion protruding than the linear portion and a second terminal portion located in the protruding portion, and the display device further comprises a holding layer holding a gap between the second area and the protruding portion.

公开(公告)号：US20200150810A1

公开(公告)日：2020-05-14

申请号：US16741857

申请日：2020-01-14

Applicant: Japan Display Inc.

Inventor： Hiroshi Mizuhashi ,  Hayato Kurasawa ,  Yoshitoshi Kida ,  Toshinori Uehara ,  Takayuki Nakanishi

IPC: G06F3/041 ,  G06F3/044

Abstract: A display device comprises a first power supply line supplying a first potential, a second power supply line supplying a second potential, a third power supply line supplying a touch driving signal, and a display unit including a plurality of sub-pixels. The display unit comprises a plurality of first electrodes respectively provided in the plurality of sub-pixels and electrically connected to the first power supply line, a second electrode provided to be common among the plurality of sub-pixels and electrically connected to the second power supply line, a light emitting layer provided between the first electrode and the second electrode, a plurality of third electrodes electrically connected to the third power supply line, and a signal control circuit supplying a signal synchronized with a touch driving signal to the second electrode in a period in which a touch driving signal is supplied to the plurality of third electrodes.

公开(公告)号：US10528205B2

公开(公告)日：2020-01-07

申请号：US16239919

申请日：2019-01-04

Applicant: Japan Display Inc.

Inventor： Masanobu Ikeda ,  Koji Ishizaki ,  Hayato Kurasawa ,  Yoshihiro Watanabe ,  Toshimasa Ishigaki ,  Daisuke Sonoda ,  Tatsuya Ide

IPC: G06F3/044 ,  G02F1/1333 ,  G06F3/041 ,  G02F1/1362 ,  G02F1/1343

Abstract: To reduce disturbances in display of images due to static electricity without deteriorating optical properties in a display. The display includes a conductive pattern provided on the upper surface of the substrate, a protection layer provided on the upper surface of the substrate to cover the conductive pattern, and a conductive layer provided on the protection layer. The sheet resistance of the conductive pattern is not more than 8 Ω/square. A ratio of the total sum of areas of portions of the plurality of sub-pixels that overlap the conductive pattern in a plan view to the total sum of the areas of the plurality of sub-pixels is 1 to 22%. A sheet resistance of the conductive layer is higher than the sheet resistance of the conductive pattern.

公开(公告)号：US10483475B2

公开(公告)日：2019-11-19

申请号：US15626286

申请日：2017-06-19

Applicant: Japan Display Inc.

Inventor： Hayato Kurasawa ,  Mitsuhide Miyamoto ,  Hiroshi Mizuhashi ,  Takayuki Nakanishi ,  Shuji Hayashi ,  Yoshitoshi Kida

IPC: H01L51/50 ,  G02F1/1362 ,  G02F1/03 ,  G02F1/1333

Abstract: A display device includes a plurality of sub pixels; a plurality of first electrodes, the sub pixel having the plurality of first electrodes; a plurality of second electrodes, the second electrode being provided commonly for at least one row pixel group, the row pixel group including sub pixels arrayed in a line in a first direction among the plurality of sub pixels, the plurality of second electrodes being arrayed in a second direction crossing the first direction; a light emitting layer between the first electrode and the second electrode, the sub pixel having the light emitting layer; and a plurality of third electrodes facing the second electrodes, the third electrodes and the second electrodes forming capacitances, the third electrodes being connected with a plurality of output terminals respectively.

公开(公告)号：US10459551B2

公开(公告)日：2019-10-29

申请号：US15085338

申请日：2016-03-30

Applicant: Japan Display Inc.

Inventor： Hayato Kurasawa ,  Koji Ishizaki ,  Tomohiko Otani

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

Abstract: According to one embodiment, a sensor-equipped display device includes a display panel including pixel electrodes and common electrodes, a cover member opposed to the display panel, a polarizer located between the display panel and the cover member, and a first detection module located between the polarizer and the cover member. The first detection module includes a first detection electrode including dot-like openings and a dummy module including dot-like dummy electrodes.

公开(公告)号：US20190302505A1

公开(公告)日：2019-10-03

申请号：US16446844

申请日：2019-06-20

Applicant: JAPAN DISPLAY INC.

Inventor： Kenta SEKI ,  Gen Koide ,  Hayato Kurasawa

IPC: G02F1/1333 ,  G02F1/1335 ,  G06F3/044 ,  G06F3/041 ,  G02F1/1337 ,  G02F1/1362

Abstract: According to one embodiment, a display device comprises image signal lines, scanning signal lines, pixels, a display area, pixel electrodes, and common electrodes. The common electrodes are configured to detect an object and to display an image in the display area. The common electrodes include first and second common electrodes which are arranged in a first direction. A first slit is provided between the first and second common electrodes. The first and second common electrodes are supplied a signal different from each other. A second slit is provided in the first common electrode. Each of the first slit and the second slit overlaps one of the image signal lines and extends in an extension direction in which the image signal line extends.