公开(公告)号：US11231627B2

公开(公告)日：2022-01-25

申请号：US17073729

申请日：2020-10-19

Applicant: Japan Display Inc.

Inventor： Hiroyuki Abe ,  Kentaro Agata ,  Masaki Murase ,  Kazune Matsumura

IPC: G02F1/1345 ,  G02F1/1362 ,  G02F1/1333 ,  G02F1/1343 ,  H01L27/12 ,  H05K9/00 ,  G02F1/1368 ,  G02F1/1335

Abstract: In an IPS-mode liquid crystal display device, the area of a terminal portion is decreased. A liquid crystal display device includes a TFT substrate and a counter substrate attached to the TFT substrate with a sealing material, and includes a display region and a terminal portion formed on the TFT substrate. A shielding transparent conductive film is formed on the outer side of the counter substrate. On the terminal portion, an earth pad formed with a transparent conductive film is formed on an organic passivation film. The shielding transparent conductive film is connected to the earth pad through a conductor. Below organic passivation film of the terminal portion, a wire is formed.

公开(公告)号：US11029573B2

公开(公告)日：2021-06-08

申请号：US17037837

申请日：2020-09-30

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：US10976624B2

公开(公告)日：2021-04-13

申请号：US16774424

申请日：2020-01-28

Applicant: Japan Display Inc.

Inventor： Hiroyuki Abe ,  Kentaro Agata

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

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：US10585517B2

公开(公告)日：2020-03-10

申请号：US16437036

申请日：2019-06-11

Applicant: Japan Display Inc.

Inventor： Hiroyuki Abe ,  Masahiro Maki ,  Takayuki Suzuki

IPC: G02F1/1345 ,  G06F3/041 ,  G02F1/1333 ,  G06F3/044 ,  G02F1/1343 ,  G02F1/1362

Abstract: The presence or absence of touch is detected according to a difference of a capacitance caused by the presence or absence of a material that blocks the electric field formed between the detection electrode and the common electrode. The common electrode includes a plurality of divided electrode portions that is extended in a lateral direction and aligned with each other in a longitudinal direction. Each of the plurality of common lines is electrically connected to at least one of the divided electrode portions. The plurality of common lines is arranged in an area next to the common electrode in the lateral direction of the common electrode, arranged next to each other in a width direction orthogonal to a length thereof, is different in width from each other, and the width of the common lines is wider as the length is longer.

公开(公告)号：US20190251923A1

公开(公告)日：2019-08-15

申请号：US16393274

申请日：2019-04-24

Applicant: Japan Display Inc.

Inventor： Takayuki SUZUKI ,  Hiroyuki Abe

IPC: G09G3/36 ,  G02F1/1368 ,  G11C19/28 ,  G02F1/1345

CPC classification number: G09G3/3677 ,  G02F1/1345 ,  G02F1/136286 ,  G02F1/1368 ,  G02F2001/136295 ,  G02F2201/56 ,  G09G2300/0426 ,  G09G2310/0286 ,  G09G2310/08 ,  G11C19/28 ,  G11C19/287

Abstract: A display device with a variant-shape display region other than the rectangular display region is configured to form a scanning line drive circuit, along the variant-shape display region. The scanning line drive circuit includes bus wiring group with clock wiring for supplying clocks with three or more phases and the power supply wring for supplying power, and the unit circuits for configuring the shift register including five or more transistors. The bus wiring and the unit circuits are formed on the different regions so as not to cross with one another.

公开(公告)号：US10281787B2

公开(公告)日：2019-05-07

申请号：US16058253

申请日：2018-08-08

Applicant: Japan Display Inc.

Inventor： Takayuki Suzuki ,  Hiroyuki Abe

IPC: G09G3/36 ,  G02F1/133 ,  H01L27/12 ,  G02F1/1333 ,  G02F1/1335 ,  G02F1/1337 ,  G02F1/1343 ,  G02F1/1345 ,  G02F1/1362 ,  G02F1/1368

Abstract: A liquid crystal display device having an outer shape of a display region formed other than a rectangle. A driver for supplying a video signal is disposed outside the display region. A selector with selector TFT is disposed between the display region and the driver. A video signal line is disposed between the driver and the selector, and a drain line is disposed between the selector and the display region. A scanning circuit for supplying a scanning signal to the scanning line is disposed outside the display region. The selector is disposed between the scanning line and the display region, and covered with ITO as the common electrode. The common bus wiring is disposed outside the selector.

公开(公告)号：US09928792B2

公开(公告)日：2018-03-27

申请号：US15497286

申请日：2017-04-26

Applicant: Japan Display Inc.

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

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

CPC classification number: G09G3/3655 ,  G02F1/13306 ,  G02F1/133345 ,  G02F1/13338 ,  G02F1/133512 ,  G02F1/133528 ,  G02F1/136286 ,  G02F2001/133302 ,  G02F2201/121 ,  G02F2201/123 ,  G02F2202/104 ,  G06F3/0412 ,  G06F3/0418 ,  G06F3/044 ,  G06F2203/04103 ,  G09G3/36 ,  G09G2300/0426 ,  G09G2320/0219 ,  G09G2320/0626

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.

公开(公告)号：US09927900B2

公开(公告)日：2018-03-27

申请号：US15584069

申请日：2017-05-02

Applicant: Japan Display Inc.

Inventor： Hiroyuki Abe ,  Masahiro Maki ,  Takayuki Suzuki

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

CPC classification number: G06F3/0412 ,  G02F1/13338 ,  G02F1/134363 ,  G02F1/1345 ,  G02F1/136286 ,  G02F2001/134318 ,  G02F2201/121 ,  G06F3/0418 ,  G06F3/044

Abstract: The presence or absence of touch is detected according to a difference of a capacitance caused by the presence or absence of a material that blocks the electric field formed between the detection electrode and the common electrode. The common electrode includes a plurality of divided electrode portions that is extended in a lateral direction and aligned with each other in a longitudinal direction. Each of the plurality of common lines is electrically connected to at least one of the divided electrode portions. The plurality of common lines is arranged in an area next to the common electrode in the lateral direction of the common electrode, arranged next to each other in a width direction orthogonal to a length thereof, is different in width from each other, and the width of the common lines is wider as the length is longer.

公开(公告)号：US20180061863A1

公开(公告)日：2018-03-01

申请号：US15805516

申请日：2017-11-07

Applicant: Japan Display Inc.

Inventor： Hiroyuki Abe ,  Takayuki Suzuki

IPC: H01L27/12 ,  G02F1/1362

CPC classification number: H01L27/124 ,  G02F1/136209 ,  G02F1/1368 ,  H01L29/78621 ,  H01L29/78627 ,  H01L29/78633 ,  H01L29/78645 ,  H01L29/78648 ,  H01L29/78663 ,  H01L29/78672

Abstract: Even when a light shielding film is provided between a transistor and a substrate, a threshold voltage of the transistor can be prevented or suppressed from being shifted. A display device includes light shielding films provided between a substrate and a semiconductor layer of a transistor including a gate electrode and the semiconductor layer. The semiconductor layer includes a source region and a drain region. Both of the light shielding films overlap the semiconductor layer when seen in a plan view, and are spaced apart from each other in a direction.

公开(公告)号：US09489879B2

公开(公告)日：2016-11-08

申请号：US14825042

申请日：2015-08-12

Applicant: Japan Display Inc.

Inventor： Hiroyuki Abe ,  Masahiro Maki ,  Hiroaki Komatsu

IPC: G09G3/20 ,  G09G3/36 ,  G11C19/28

CPC classification number: G09G3/3677 ,  G09G3/20 ,  G09G3/2018 ,  G09G3/3674 ,  G09G2310/0281 ,  G09G2310/0283 ,  G09G2310/0286 ,  G09G2310/08 ,  G09G2330/021 ,  G11C19/28

Abstract: A driving circuit of a display device includes first to third output signal lines which are continuously arranged, a first transistor that has a source connected to the second output signal line and a drain connected to a first clock signal line, and a second transistor that provides a non-active potential to a gate of the first transistor when a second clock signal becomes the active potential, wherein a circuit that outputs the active potential to the first output signal line and the third output signal line is disposed at an opposite side to a circuit that outputs the active potential to the second output signal line with a display region interposed therebetween, and wherein the gate of the first transistor is connected to the first output signal line and the third output signal line via rectifying circuits.