公开(公告)号：US20240118778A1

公开(公告)日：2024-04-11

申请号：US18389986

申请日：2023-12-20

Applicant: Japan Display Inc.

Inventor： Koji ISHIZAKI ,  Koji NOGUCHI ,  Masanobu IKEDA ,  Yasuyuki MATSUI

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

CPC classification number: G06F3/0446 ,  G02F1/13338 ,  G02F1/133707 ,  G02F1/134309 ,  G06F3/041 ,  G06F3/0412 ,  G06F3/044 ,  G06F3/0445 ,  G09G3/3648

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：US20230289003A1

公开(公告)日：2023-09-14

申请号：US18196117

申请日：2023-05-11

Applicant: Japan Display Inc.

Inventor： Koji NOGUCHI

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

CPC classification number: G06F3/0412 ,  G06F3/04164 ,  G06F3/04166 ,  G06F3/0443 ,  G06F3/0445 ,  G06F3/0446 ,  G09G3/3648 ,  G02F1/13338 ,  G09G2354/00

Abstract: According to an aspect, a touch detection device includes: a first substrate; a second substrate opposed to the first substrate; a cover base material opposed to the second substrate; a plurality of first electrodes overlapping a display region on a plane parallel with the first substrate; and a second electrode arranged at the cover base material and overlapping a frame region outside the display region. Proximity or contact of an object with respect to the frame region is detected based on capacitance between the first electrodes and the second electrode. The second electrode extends along a side of the frame region.

公开(公告)号：US20210342029A1

公开(公告)日：2021-11-04

申请号：US17378966

申请日：2021-07-19

Applicant: Japan Display Inc.

Inventor： Koji NOGUCHI

IPC: G06F3/041 ,  G06F3/044

Abstract: According to an aspect, a touch detection device includes: a plurality of drive electrodes arranged in parallel with each other; and a plurality of first touch detection electrodes arranged in parallel with each other and arranged at a portion not in contact with the drive electrodes and where the first touch detection electrode forms capacitance with a drive electrode to which a drive signal is output. The drive electrodes includes a drive electrode including a plurality of subdivided electrodes an arrangement pitch of which is finer than an arrangement pitch of the drive electrodes. The drive electrode including the subdivided electrodes is provided such that switching is enabled between a first mode in which the drive signal is collectively output to the subdivided electrodes of the drive electrode and a second mode in which the drive signal is individually output to each of the subdivided electrodes of the drive electrode.

公开(公告)号：US20180307367A1

公开(公告)日：2018-10-25

申请号：US15953894

申请日：2018-04-16

Applicant: Japan Display Inc.

Inventor： Koji NOGUCHI ,  Takayuki NAKANISHI

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0416 ,  G06F3/044 ,  G06F2203/04101 ,  G06F2203/04107 ,  G06F2203/04112

Abstract: A display device includes a first substrate, a second substrate, a first electrode, a second electrode, a drive circuit, and a control circuit. The second substrate faces the first substrate. The first electrode is provided in a display region of the first substrate. The second electrode is provided to the second substrate at a position closer to a display surface than the first electrode in a direction perpendicular to the first substrate. The drive circuit supplies a first drive signal or a second drive signal to the second electrode. The control circuit has a first detection mode and a second detection mode.

公开(公告)号：US20170285814A1

公开(公告)日：2017-10-05

申请号：US15469657

申请日：2017-03-27

Applicant: Japan Display Inc.

Inventor： Tadayoshi KATSUTA ,  Koji NOGUCHI ,  Daisuke ITO ,  Yasuyuki TERANISHI

IPC: G06F3/041 ,  G02F1/1333 ,  G02F1/1362 ,  G02F1/1343 ,  G02F1/1368 ,  G06F3/044 ,  G09G3/36

CPC classification number: G06F3/0412 ,  G06F3/0416 ,  G06F3/044 ,  G06F2203/04107 ,  G06F2203/04108 ,  G09G3/3648 ,  G09G2354/00

Abstract: A performance of a display device having an input device is improved. A display device includes: an electro-optical layer; a first driving electrode and a second driving electrode which drives the electro-optical layer; a driver chip which outputs a video signal; a switch circuit which is arranged outside the driver chip, which selects a potential to be supplied to the second driving electrode, and which includes a first switch element and a second switch element; a shift register circuit connected to the switch circuit; and a detection circuit which detects that an object is close or in contact. Each of the first switch element and the second switch element is selectively turned ON or OFF by the shift register circuit. The detection circuit is electrically connected to the first switch element and the second switch element.

公开(公告)号：US20170277300A1

公开(公告)日：2017-09-28

申请号：US15421620

申请日：2017-02-01

Applicant: Japan Display Inc.

Inventor： Hayato KURASAWA ,  Koji NOGUCHI

IPC: G06F3/044 ,  G06F3/041

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

Abstract: A display device includes a substrate, a plurality of pixel electrodes, a switching element, and a first electrode. The substrate has a first surface and a second surface opposite to the first surface. The pixel electrodes are provided to the first surface side and supplied with a pixel signal for displaying an image. The switching element is provided to the first surface side and coupled to the pixel electrodes. The first electrode is provided to a layer closer to the first surface than the switching element in a manner facing the switching element in a direction perpendicular to the first surface of the substrate and having lower light transmittance than that of the substrate.

公开(公告)号：US20170131836A1

公开(公告)日：2017-05-11

申请号：US15415541

申请日：2017-01-25

Applicant: Japan Display Inc.

Inventor： Koji NOGUCHI ,  Takafumi SUZUKI

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

CPC classification number: G06F3/0416 ,  G02F1/13338 ,  G06F3/0412 ,  G06F3/044 ,  G06F3/047 ,  G06F2203/04103 ,  G09G3/3406 ,  G09G3/36 ,  G09G2300/0426

Abstract: According to an aspect, a display device with a touch detection function includes: a first substrate; a plurality of pixel electrodes in a first region; a display functional layer; a plurality of first drive electrodes facing the pixel electrodes in a perpendicular direction with respect to a surface of the first substrate; and a plurality of touch detection electrodes facing the first drive electrodes and extending in a direction different from a direction in which the first drive electrodes are extended. At least one touch detection electrode of the plurality of touch detection electrodes extends from the first region to a second region adjacent to the first region. A second drive electrode capacitively-coupled to the at least one touch detection electrode is further provided in the second region.

公开(公告)号：US20170123566A1

公开(公告)日：2017-05-04

申请号：US15288393

申请日：2016-10-07

Applicant: Japan Display Inc.

Inventor： Koji NOGUCHI

IPC: G06F3/041 ,  G06F3/044

Abstract: According to an aspect, a touch detection device includes: a plurality of drive electrodes arranged in parallel with each other; and a plurality of first touch detection electrodes arranged in parallel with each other and arranged at a portion not in contact with the drive electrodes and where the first touch detection electrode forms capacitance with a drive electrode to which a drive signal is output. The drive electrodes includes a drive electrode including a plurality of subdivided electrodes an arrangement pitch of which is finer than an arrangement pitch of the drive electrodes. The drive electrode including the subdivided electrodes is provided such that switching is enabled between a first mode in which the drive signal is collectively output to the subdivided electrodes of the drive electrode and a second mode in which the drive signal is individually output to each of the subdivided electrodes of the drive electrode.

公开(公告)号：US20160131931A1

公开(公告)日：2016-05-12

申请号：US14935613

申请日：2015-11-09

Applicant: Japan Display Inc.

Inventor： Naosuke FURUTANI ,  Atsushi NAKAMURA ,  Osamu ISHIGE ,  Koji NOGUCHI ,  Chihiro TANAKA

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

CPC classification number: G02F1/13338 ,  G02F1/133502 ,  G02F1/133504 ,  G06F3/044

Abstract: An image quality of a display device is improved. The display device includes: a display unit having a display functional layer; a cover member having a front surface and a back surface positioned on an opposite side of the front surface and covering the display unit; and a polarizing plate having a front surface so as to oppose the back surface of the cover member through a space spreading along the back surface of the cover member. Also, a reflection suppressing layer reducing reflected light which is visually recognized on the display surface side is formed on either one of the back surface of the cover member and the front surface of the polarizing plate.

Abstract translation: 提高了显示装置的图像质量。 显示装置包括：具有显示功能层的显示单元; 盖构件，其具有位于所述前表面的相对侧的前表面和后表面，并且覆盖所述显示单元; 以及偏振板，其具有通过沿着盖构件的后表面扩展的空间而与盖构件的后表面相对的前表面。 此外，在盖构件的背面和偏振片的前表面之间形成减少在显示面侧视觉识别的反射光的反射抑制层。

公开(公告)号：US20160041686A1

公开(公告)日：2016-02-11

申请号：US14918851

申请日：2015-10-21

Applicant: Japan Display Inc.

Inventor： Yoshitoshi KIDA ,  Koji NOGUCHI ,  Yasuyuki TERANISHI ,  Hiroshi MIZUHASHI ,  Kohei AZUMI

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/044 ,  G06F3/0412 ,  G06F3/0416 ,  G06F3/0418

Abstract: According to an aspect, a display device with a touch detection function includes a plurality of drive electrodes that face a plurality of pixel electrodes in an orthogonal direction to the surface of the substrate, and extend in a direction parallel to the direction in which a plurality of signal lines extend. The display device with a touch detection function also includes a scan driving unit that applies a touch drive signal to a signal line that faces, in an overlapping manner in the orthogonal direction, a drive electrode to which the touch drive signal is applied.