公开(公告)号：US12007654B2

公开(公告)日：2024-06-11

申请号：US18300710

申请日：2023-04-14

Applicant: Japan Display Inc.

Inventor： Gen Koide ,  Hiroyuki Abe ,  Kazune Matsumura

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

CPC classification number: G02F1/13452 ,  G02F1/1345 ,  G02F1/136286 ,  G09G3/3677 ,  G09G2300/0426

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：US11662637B2

公开(公告)日：2023-05-30

申请号：US17192209

申请日：2021-03-04

Applicant: Japan Display Inc.

Inventor： Hiroyuki Abe ,  Kentaro Agata

IPC: G02F1/1362 ,  G02F1/1333 ,  G02F1/1339 ,  G09G3/36 ,  G02F1/1345

CPC classification number: G02F1/136286 ,  G02F1/1339 ,  G02F1/1345 ,  G02F1/13452 ,  G02F1/133345 ,  G09G3/3688 ,  G02F1/13454 ,  G02F1/13456 ,  G02F1/13458 ,  G02F1/13629 ,  G02F1/136295 ,  G09G2300/0408 ,  G09G2300/0426 ,  G09G2300/0452 ,  G09G2310/0297

Abstract: It is possible to reduce a size of a lower frame region to ensure a wiring corrosion margin equivalent to that of a conventional technique. In a display device, a video signal wiring arranged in the lower frame region includes, in a region between a terminal section (terminal) and a video signal line, a first wiring formed on a first wiring layer and having one end connected to the terminal section to which a video signal line driving circuit is connected, a second wiring formed on a second wiring layer different from the first wiring layer and having one end connected to the other end of the first wiring, and a third wiring formed on the first wiring layer and having one end connected to the other end of the second wiring. The other end of the third wiring is connected to the video signal line via a fourth wiring formed on the second wiring layer, and the first wiring layer is formed on the side closer to an array substrate than to the second wiring layer.

公开(公告)号：US11556199B2

公开(公告)日：2023-01-17

申请号：US17739382

申请日：2022-05-09

Applicant: Japan Display Inc.

Inventor： Hiroyuki Abe ,  Yoshinori Aoki ,  Kazune Matsumura ,  Masateru Morimoto

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

Abstract: According to an aspect, a display device with a sensor includes: a substrate including a display region and a peripheral region on a periphery of the display region; detection electrodes arranged in a row-column configuration in the display region; and detection lines coupled to the respective detection electrodes. A shape of the substrate in a plan view includes a curve of a curved portion. The detection electrodes include a first electrode and a second electrode having a shape different from that of the first electrode in a plan view. The second electrode is juxtaposed with the curved portion. The detection lines each include a first line coupled to the first electrode and a second line coupled to the second electrode. The second line passes from the display region across the peripheral region and extends to a position overlapping with the second electrode in a plan view.

公开(公告)号：US11556026B2

公开(公告)日：2023-01-17

申请号：US17834514

申请日：2022-06-07

Applicant: Japan Display Inc.

Inventor： Akihiko Saitoh ,  Hiroyuki Abe ,  Masateru Morimoto

IPC: G02F1/1333 ,  G02F1/1343 ,  G06V40/13 ,  G02F1/1362

Abstract: According to one embodiment, a display device includes a first substrate, a second substrate and a liquid crystal layer. The first substrate includes a base material, a sensor including a photoelectric conversion element outputting a detection signal based on incident light from a liquid crystal layer side, and a first line electrically connected to the sensor. The pixel includes a first subpixel, a second subpixel and a third subpixel. The photoelectric conversion element is provided in an area in which the third subpixel is located. The first line includes a first branch portion overlapping the photoelectric conversion element and including an opening, and a second branch portion overlapping a through-hole provided such that the first line is electrically connected to the sensor.

公开(公告)号：US11347123B2

公开(公告)日：2022-05-31

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：US11003273B2

公开(公告)日：2021-05-11

申请号：US17065945

申请日：2020-10-08

Applicant: Japan Display Inc.

Inventor： Hiroyuki Abe ,  Yoshinori Aoki ,  Kazune Matsumura ,  Masateru Morimoto

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

Abstract: According to an aspect, a display device with a sensor includes: a substrate including a display region and a peripheral region on a periphery of the display region; detection electrodes arranged in a row-column configuration in the display region; and detection lines coupled to the respective detection electrodes. A shape of the substrate in a plan view includes a curve of a curved portion. The detection electrodes include a first electrode and a second electrode having a shape different from that of the first electrode in a plan view. The second electrode is juxtaposed with the curved portion. The detection lines each include a first line coupled to the first electrode and a second line coupled to the second electrode. The second line passes from the display region across the peripheral region and extends to a position overlapping with the second electrode in a plan view.

公开(公告)号：US10977974B2

公开(公告)日：2021-04-13

申请号：US16735775

申请日：2020-01-07

Applicant: Japan Display Inc.

Inventor： Hiroyuki Abe ,  Kentaro Agata

IPC: G09G3/00 ,  G09G3/3225 ,  G09G3/36 ,  G02F1/1345 ,  H01L27/32 ,  G02F1/1362 ,  G02F1/1368

Abstract: An inspection circuit is properly protected in a display device, which the driver IC is not on the terminal area. A liquid crystal display device comprising a TFT substrate having a display area, in which video signal lines are formed, and a terminal area; a counter substrate overlapping with the display area of the TFT substrate; the counter substrate and the TFT substrate are adhered by the seal material, the display area is formed in an area surrounded by the seal material; wherein the flexible wiring circuit substrate connects to the terminal area, the driver IC, which supplies video signals to the video signal lines, is not installed in the terminal area, the inspection circuit is formed between the display area and the terminal area, wherein the inspection circuit overlaps with the counter substrate in a plan view.

公开(公告)号：US10831076B2

公开(公告)日：2020-11-10

申请号：US16508989

申请日：2019-07-11

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：US10777584B2

公开(公告)日：2020-09-15

申请号：US16051537

申请日：2018-08-01

Applicant: Japan Display Inc.

Inventor： Koji Yamamoto ,  Hiroyuki Abe ,  Naoki Miyanaga

IPC: H01L27/12 ,  H01L27/24 ,  H01L27/32 ,  H01L51/52 ,  G06F3/041 ,  G06F3/044

Abstract: A display device includes a signal line driver, provided in a peripheral area of a display panel, that outputs video signals, a signal selection circuit that distributes the video signals output from the signal line driver among signal lines connected to pixels, and a plurality of connection lines that make connection between the signal line driver and the signal selection circuit, and a shield layer made of the same material as second transparent electrodes that are pixel electrodes on a layer above the plurality of connection lines in an area excluding the signal selection circuit.

公开(公告)号：US10593276B2

公开(公告)日：2020-03-17

申请号：US16161909

申请日：2018-10-16

Applicant: Japan Display Inc.

Inventor： Takayuki Suzuki ,  Hiroyuki Abe ,  Masahiro Maki ,  Mitsuru Goto

IPC: G06F3/044 ,  G09G3/36 ,  G06F3/041 ,  G02F1/133 ,  G02F1/1333 ,  G02F1/1335 ,  G02F1/1362

Abstract: A display device includes pixel electrodes formed in an image display area of a substrate, a common electrode formed in the image display area, inside signal lines formed inside the image display area, and electrically connected to the pixel electrodes, outside signal lines formed outside the image display area, and electrically connected to the inside signal lines, and a common line formed inside and outside the image display area, and electrically connected to the common electrode. An image is displayed under a control of a light using an electric field developed between the pixel electrodes and the common electrode. A coupling capacitance is formed between the inside signal lines and the common electrode. The outside signal lines each include a first portion, and a second portion higher in electric resistance than the first portion and the inside signal lines.