公开(公告)号：US20210109414A1

公开(公告)日：2021-04-15

申请号：US17131036

申请日：2020-12-22

Applicant: Japan Display Inc.

Inventor： Masaaki KABE ,  Jin HIROSAWA ,  Hayato KURASAWA

IPC: G02F1/1362 ,  G09G3/36

Abstract: A display device includes: a first pixel including a first sub-pixel, a second sub-pixel, and a third sub-pixel; and a second pixel including the first sub-pixel, the second sub-pixel, and a fourth sub-pixel. The first pixel and the second pixel are alternately arranged in a row direction and a column direction. The third sub-pixel and the fourth sub-pixel are alternately arranged in the column direction. A branch electrode in one of two first sub-pixels adjacent in the column direction extends in a first direction, and a branch electrode in the other thereof extends in a second direction. A branch electrode in one of two second sub-pixels adjacent in the column direction extends in the first direction, and a branch electrode in the other thereof extends in the second direction. Each branch electrode in the third sub-pixel and the fourth sub-pixel includes a bending portion.

公开(公告)号：US20210003892A1

公开(公告)日：2021-01-07

申请号：US17030945

申请日：2020-09-24

Applicant: JAPAN DISPLAY INC.

Inventor： Kenta SEKI ,  Gen KOIDE ,  Hayato KURASAWA

IPC: G02F1/1337 ,  G02F1/1343 ,  G02F1/1333 ,  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.

公开(公告)号：US20210003875A1

公开(公告)日：2021-01-07

申请号：US17023943

申请日：2020-09-17

Applicant: Japan Display Inc.

Inventor： Hayato KURASAWA ,  Hiroshi MIZUHASHI

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

Abstract: A display device includes a first substrate, a second substrate, a display functional layer, first electrodes, pixel electrodes, second electrodes, a drive circuit, and a conductive body. The second substrate faces the first substrate. The display functional layer is provided between the first substrate and the second substrate. The first electrodes are provided between the first substrate and the second substrate. The pixel electrodes face the first electrodes between the first substrate and the second substrate. The second electrodes overlap the first electrodes through the display functional layer. The drive circuit supplies drive signals to a pair of the first electrode, wherein the drive circuit supplies a first electric potential to one of the pair of first electrodes and supplies a drive signal having a second electric potential different from the first electric potential to the other of the pair of first electrodes simultaneously.

公开(公告)号：US20200327293A1

公开(公告)日：2020-10-15

申请号：US16883469

申请日：2020-05-26

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：US20200242318A1

公开(公告)日：2020-07-30

申请号：US16845911

申请日：2020-04-10

Applicant: Japan Display Inc.

Inventor： Fumihito SHIBANO ,  Hiroshi MIZUHASHI ,  Toshinori UEHARA ,  Kimiyo NONOYAMA ,  Hayato KURASAWA

IPC: G06K9/00

Abstract: A fingerprint sensor is provided and includes a substrate; sensor electrodes arranged in a matrix on the substrate; switches coupled to the sensor electrodes; a control line drive circuit; a signal line drive circuit; signal lines coupling the signal line drive circuit to the sensor electrodes through the switches; control lines transmitting a selection signal to the switches from the control line drive circuit; and a sensor drive electrode surrounding the matrix of the sensor electrodes, wherein a distance of the sensor drive electrode from a surface of the substrate is larger than a distance of the sensor electrodes from the surface of the substrate.

公开(公告)号：US20200210013A1

公开(公告)日：2020-07-02

申请号：US16811505

申请日：2020-03-06

Applicant: Japan Display Inc.

Inventor： Takeo KOITO ,  Koji ISHIZAKI ,  Hayato KURASAWA

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

Abstract: A detection device is provided and includes a detection electrode including first wire pieces, the detection electrode including a first wire and a second wire; and second wire pieces between the first wire and the second wire, wherein the first wire includes a first bent portion, the second wire includes a second bent portion, the first and second bent portions are formed by two of the first wire pieces including first and second edges, an angle of the first bent portion is different from an angle of the second bent portion, the first edge of the first bent portion is connected to the first edge of the second bent portion by a connecting portion, the second edge of the first bent portion is not in contact with the second edge of the second bent portion, and each of the second wire pieces is not connected to the first wire, the second wire, and the connecting portion.

公开(公告)号：US20190302967A1

公开(公告)日：2019-10-03

申请号：US16371946

申请日：2019-04-01

Applicant: Japan Display Inc.

Inventor： Hayato KURASAWA ,  Toshinori UEHARA ,  Yuji SUZUKI

IPC: G06F3/044

Abstract: According to an aspect, a display device includes: a first substrate; a second substrate facing the first substrate; a display function layer between the first substrate and the second substrate and displaying an image; first electrodes in a detection region of the first substrate; second electrodes in the detection region above the second substrate; a first electrode selection circuit in a peripheral region outside the detection region of the first substrate; and a second electrode selection circuit in a region overlapping with the peripheral region above the second substrate. The first electrode selection circuit selects some of the first electrodes, and supplies detection drive signals having phases determined on the basis of a certain code to the selected first electrodes. The second electrode selection circuit selects some of the second electrodes on the basis of a certain code, and couples the selected second electrodes to a single output signal line.

公开(公告)号：US20190294294A1

公开(公告)日：2019-09-26

申请号：US16442064

申请日：2019-06-14

Applicant: Japan Display Inc.

Inventor： Shinya IUCHI ,  Hayato KURASAWA ,  Masahiro TOGASHI ,  Tsutomu HARADA ,  Yuji SUZUKI

IPC: G06F3/041 ,  G06F3/044 ,  G06F3/14

Abstract: A display apparatus includes a plurality of display panels arranged in a matrix, each of the image display panel includes a plurality of drive electrodes extending in a first direction and a plurality of detection electrodes extending in a second direction crossing the first direction, wherein an AC voltage is sequentially applied to the plurality of drive electrodes of a first display panel, and the plurality of detection electrodes of a second display panel adjacent to the first display panel detect a signal output from the plurality of drive electrodes of the first display panel.

公开(公告)号：US20190012017A1

公开(公告)日：2019-01-10

申请号：US16029709

申请日：2018-07-09

Applicant: Japan Display Inc.

Inventor： Hayato KURASAWA ,  Hiroshi MIZUHASHI ,  Tadayoshi KATSUTA

IPC: G06F3/044 ,  G09G3/36 ,  G06F3/046

Abstract: A display device includes first electrodes, second electrodes, lines, and a controller, and includes a substrate, pixel electrodes, a display functional layer, and a common electrode stacked in this order. An insulating layer is between the common electrode and the first and second electrodes. The controller controls the pixel electrodes, the common electrode, the lines, and the first and second electrodes. During a display period, the pixel electrodes are supplied with a pixel signal through the lines, and the common electrode is supplied with a common signal. During a first sensing period, the lines are supplied with a first drive signal to generate a magnetic field. During a second sensing period, the lines are supplied with the first drive signal to generate the magnetic field, and an electromotive force corresponding to a distance between the lines and the first electrodes is generated in the first electrodes by the magnetic field.

公开(公告)号：US20180284513A1

公开(公告)日：2018-10-04

申请号：US15938622

申请日：2018-03-28

Applicant: Japan Display Inc.

Inventor： Koji ISHIZAKI ,  Hayato KURASAWA ,  Masanobu IKEDA

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

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.