公开(公告)号：US20230037791A1

公开(公告)日：2023-02-09

申请号：US17970900

申请日：2022-10-21

Applicant: Japan Display Inc.

Inventor： Gen KOIDE

IPC: G06F3/041 ,  G06F3/044

Abstract: A display device includes a plurality of first sub-pixels configured to display red, a plurality of second sub-pixels configured to display green, a plurality of third sub-pixels configured to display blue, and a plurality of fourth sub-pixels configured to display white, a first signal line coupled to the first sub-pixels, a second signal line coupled to the second sub-pixels, and a third signal line coupled to the third sub-pixels and the fourth sub-pixels, a plurality of detection electrodes arrayed in a matrix (row-column configuration) and each provided overlapping the first sub-pixels, the second sub-pixels, the third sub-pixels, and the fourth sub-pixels, and a plurality of signal supply wires coupled to the respective detection electrodes. The signal supply wires are each provided overlapping at least one of the first signal line and the second signal line and not overlapping the third signal line.

公开(公告)号：US20230004055A1

公开(公告)日：2023-01-05

申请号：US17851101

申请日：2022-06-28

Applicant: Japan Display Inc.

Inventor： Kazune MATSUMURA ,  Seiichi URAMOTO ,  Gen KOIDE

IPC: G02F1/1362 ,  G02F1/1333 ,  G02F1/1368 ,  G06F3/041 ,  G06F3/044

Abstract: A peripheral wiring region of a display device includes a first insulating layer on a substrate, a first wiring layer on the first insulating layer, a second insulating layer which is present on the first insulating layer and covers the first wiring layer, and a second wiring layer on the second insulating layer. A plurality of video signal wirings are arranged in the first wiring layer. A plurality of touch detection wirings arranged in a matrix in an X direction and a Y direction and a conductor pattern to which a fixed potential is supplied are formed in the second wiring layer. The conductor pattern is arranged at a position overlapping a part of the plurality of video signal wirings and is capacitively coupled to the part of the plurality of video signal wirings.

公开(公告)号：US20220300139A1

公开(公告)日：2022-09-22

申请号：US17833954

申请日：2022-06-07

Applicant: Japan Display Inc.

Inventor： Hayato KURASAWA ,  Hiroshi MIZUHASHI ,  Fumitaka GOTOH ,  Gen KOIDE ,  Tadayoshi KATSUTA

IPC: G06F3/041 ,  G06F3/044 ,  G06F3/046

Abstract: According to an aspect, a display apparatus includes: a substrate; a plurality of pixel electrodes; a plurality of detection electrodes arranged in a matrix in a display area of the substrate; a plurality of detection electrode lines coupled to the respective detection electrodes; a plurality of first electrodes provided in the same layer as the detection electrodes or the detection electrode lines and extending in a first direction; a plurality of switching elements coupled to the respective pixel electrodes; a plurality of signal lines coupled to the switching elements and extending in a second direction crossing the first direction; a coupling member provided in a peripheral area outside the display area and configured to couple ends of the first electrodes to each other; and a drive circuit configured to output a first drive signal in a first sensing period in which an electromagnetic induction method is used.

公开(公告)号：US20220276736A1

公开(公告)日：2022-09-01

申请号：US17750412

申请日：2022-05-23

Applicant: Japan Display Inc.

Inventor： Gen KOIDE

IPC: G06F3/041 ,  G02F1/1333 ,  G02F1/1343 ,  G02F1/1362 ,  G06F3/044 ,  G09G3/20 ,  G09G3/36

Abstract: According to an aspect, a display device includes a display panel provided with a display region including a plurality of pixels and with a plurality of detection electrodes. The display panel includes: a plurality of lines of first common wiring configured to transmit pixel signals to be supplied to the pixels and a detection input/output signal to be supplied to the detection electrodes; pixel signal wiring electrically coupled to the pixels; detection electrode wiring electrically coupled to the detection electrodes; a first switching circuit configured to electrically couple or uncouple the first common wiring to or from the pixel signal wiring; and a second switching circuit configured to electrically couple or uncouple the first common wiring to or from the detection electrode wiring.

公开(公告)号：US20220113186A1

公开(公告)日：2022-04-14

申请号：US17496880

申请日：2021-10-08

Applicant: Japan Display Inc.

Inventor： Gen KOIDE

IPC: G01J1/44

Abstract: A detection device includes: detection elements; scan lines coupled to the detection elements and configured to supply drive signals to the detection elements; output signal lines coupled to the detection elements, detection signals from the detection elements being output to the output signal lines; a drive circuit configured to supply the drive signals to the detection elements; and a detection circuit configured to be supplied with the detection signals through the output signal lines. Each detection element includes a photoelectric conversion element, a source follower transistor configured to output a signal corresponding to an electrical charge of the photoelectric conversion element, and a read transistor configured to read the output signal of the source follower transistor and output the detection signal. During a reset period, an initial voltage obtained by superimposing a reference voltage on a threshold voltage of the source follower transistor is applied to the photoelectric conversion element.

公开(公告)号：US20210255514A1

公开(公告)日：2021-08-19

申请号：US17246808

申请日：2021-05-03

Applicant: Japan Display Inc.

Inventor： Gen KOIDE ,  Hiroyuki ABE ,  Kazune MATSUMURA

IPC: G02F1/1362 ,  H01L27/12 ,  G02F1/1345

Abstract: According to an aspect, a display device includes: a substrate; a display region; a peripheral region; signal lines; terminals; wires coupling the terminals and the signal lines in the peripheral region; and first and second metal layers in different layers perpendicularly to the substrate and an insulating film in the peripheral region. The peripheral region includes: a first wiring region, in which the wires are electrically coupled to the signal lines; a second wiring region between the first wiring region and the terminals, and in which at least one or more wires pass through the first and second metal layers; and a third wiring region between the first and second wiring regions, and in which the wires extend in a second direction intersecting the first direction. The third wiring region includes contacts coupling the first and second metal layers, and a virtual line connecting the contacts has a curved shape.

公开(公告)号：US20210191206A1

公开(公告)日：2021-06-24

申请号：US17123434

申请日：2020-12-16

Applicant: Japan Display Inc.

Inventor： Masataka IKEDA ,  Gen KOIDE

IPC: G02F1/1362

Abstract: A display device includes a first direction, a plurality of pixels arranged in a second direction intersecting the first direction, at least one scanning signal line connected to the plurality of pixels, a scanning signal line driving circuit connected to the scanning line, the scanning signal line driving circuit includes a switch for outputting a signal to the scanning signal line, a first power supply line for providing a first voltage to the switch, a second power supply line for providing a second voltage smaller than the first voltage to the switch, and the switch is provided between the first power supply line and the second power supply line, a line width of the second power supply line is 4 times the line width of the first power supply line or more and 40 times the line width of the first power supply line or less.

公开(公告)号：US20210036031A1

公开(公告)日：2021-02-04

申请号：US17074980

申请日：2020-10-20

Applicant: Japan Display Inc.

Inventor： Hidetatsu NAKAMURA ,  Yasuhiro KANAYA ,  Gen KOIDE ,  Hiroyuki ABE

IPC: H01L27/12 ,  G02F1/1343 ,  G02F1/1333 ,  G02F1/1362 ,  G02F1/1345 ,  G02F1/1368 ,  G06F3/044 ,  H01L23/60

Abstract: The purpose of the present invention is to prevent an overhang in a through hole in the display area when through holes in the organic passivation film in the display area and in the terminal area are simultaneously formed. The structure to realize this purpose is as follows: the terminal area having a lead wire, formed from a first metal, and extending to the display area, a first insulating film covering the lead wire, a second metal formed on the first insulating film, and a third metal formed on the surface of the second metal, wherein the first insulating film has a first through hole and a second through hole, the second metal has a first portion that connects with the lead wire via the first through hole, the second metal has a second portion that overlaps the second through hole, the second portion is separated from the first portion.

公开(公告)号：US20210018808A1

公开(公告)日：2021-01-21

申请号：US17062682

申请日：2020-10-05

Applicant: Japan Display Inc.

Inventor： Gen KOIDE ,  Hiroyuki ABE ,  Kazune MATSUMURA

IPC: G02F1/1362 ,  G09G3/36

Abstract: According to an aspect, a display device includes: a first substrate having a first side and a second side opposed to the first side; a display region provided with pixels; a first partial peripheral region between the first side and the display region; a second partial peripheral region between the second side and the display region; a plurality of signal lines configured to supply signals to switching elements in the pixels; a plurality of first terminals provided in the first partial peripheral region and configured to be electrically coupled to a driver integrated circuit; a plurality of second terminals provided in the second partial peripheral region and configured to be supplied with signals for inspection; and a first coupling circuit provided between the first terminals and the display region in the first partial peripheral region and configured to switch between coupling and decoupling the signal lines and the second terminals.

公开(公告)号：US20200286439A1

公开(公告)日：2020-09-10

申请号：US16794300

申请日：2020-02-19

Applicant: Japan Display Inc.

Inventor： Gen KOIDE ,  Akihiro OGAWA

IPC: G09G3/36 ,  G02F1/1345 ,  G02F1/1362

Abstract: A performance of a display apparatus is improved. A display apparatus has a display region, a transparent region and a frame region. The display apparatus includes a plurality of scan signal lines extending in an X direction in the display region and a plurality of image signal lines extending in a Y direction in the display region. The plurality of image signal lines include a first wiring (image signal line) and a second wiring (image signal line). The first wiring includes a first bypass wiring portion arranged in the frame region and a first extension wiring portion connected to an end of the first bypass wiring portion and extending in the Y direction. The second wiring includes a second bypass wiring portion arranged in the frame region and a second extension wiring portion connected to an end of the second bypass wiring portion and extending in the Y direction. In a plan view, the first wiring and the second wiring intersect with each other at the frame region.