公开(公告)号：US09519389B2

公开(公告)日：2016-12-13

申请号：US14463710

申请日：2014-08-20

Applicant: Japan Display Inc.

Inventor： Motoharu Miyamoto ,  Takahiro Ochiai ,  Yoshinori Aoki ,  Hideo Sato

IPC: G06F3/041 ,  G06F3/044 ,  G09G3/20

CPC classification number: G06F3/044 ,  G06F3/0412 ,  G06F3/0416 ,  G09G3/20 ,  G09G2230/00 ,  G09G2300/023 ,  G09G2300/0426 ,  G09G2310/0267 ,  G09G2310/062 ,  G09G2310/063

Abstract: A display device with a touch panel includes: a plurality of scanning signal lines, which are aligned in a rectangular display region and in parallel with a side of the rectangular display region, to which an active potential as a potential for making a pixel transistor conductive is applied; drive pulse output circuits which sequentially apply the active potential to the scanning signal lines in the display region; a clock signal output circuit which applies a first clock signal as a clock signal for the drive pulse output circuits to a first clock signal line and stops the application of the first clock signal to the first clock signal line for a stop period during which the sequential application of the active potential is stopped in the middle thereof; and a touch panel control unit which detects contact with a display surface during the stop period.

Abstract translation: 具有触摸面板的显示装置包括：多个扫描信号线，其在矩形显示区域中排列并与矩形显示区域的一侧平行，作为用于使像素晶体管导通的电位的有源电位 被申请;被应用; 驱动脉冲输出电路，其将有效电位依次施加到显示区域中的扫描信号线; 时钟信号输出电路，其将第一时钟信号作为驱动脉冲输出电路的时钟信号施加到第一时钟信号线，并且停止将第一时钟信号施加到第一时钟信号线用于停止时段，在该停止时段期间， 在其中间停止施加有效电位; 以及触摸面板控制单元，其在停止期间检测与显示表面的接触。

公开(公告)号：US12044935B2

公开(公告)日：2024-07-23

申请号：US18455699

申请日：2023-08-25

Applicant: Japan Display Inc.

Inventor： Motoharu Miyamoto

IPC: G02F1/1343 ,  G02F1/1339 ,  G02F1/1362

CPC classification number: G02F1/134363 ,  G02F1/1339 ,  G02F1/13394 ,  G02F1/136286 ,  G02F1/134309 ,  G02F1/134318

Abstract: The liquid crystal display device includes: a TFT substrate including scanning lines extending in a first direction and being arranged in a second direction, video signal lines extending in the second direction and being arranged in the first direction, pixel electrodes arranged in regions surrounded by the scanning lines and the video signal lines, and common electrodes formed with an insulating film arranged between the common electrodes and the pixel electrodes; a counter substrate opposed to the TFT substrate; and a liquid crystal. The first common electrode extends between the first and second scanning lines in the first direction, and the second common electrode extends between the second and third scanning lines in the first direction. The first and second common electrodes are electrically connected by a bridge. The bridge covers the first video signal line without covering the second video signal line, when seen in a plan view.

公开(公告)号：US11567374B2

公开(公告)日：2023-01-31

申请号：US17579639

申请日：2022-01-20

Applicant: Japan Display Inc.

Inventor： Masateru Morimoto ,  Saori Sugiyama ,  Motoharu Miyamoto

IPC: G02F1/1362 ,  G02F1/1343 ,  G02F1/1339

Abstract: The displacement between a TFT substrate and a counter substrate and the cut of an alignment film caused by a columnar spacer are prevented. A liquid crystal display device includes: a TFT substrate including a scanning line extending in a first direction, a picture signal line extending in a second direction, a pixel electrode formed in a region surrounded by the scanning line and the picture signal line, and a common electrode formed as opposed to the pixel electrode through an insulating film; a counter substrate disposed as opposed to the TFT substrate and having a spacer; and a liquid crystal sandwiched between the substrates. A common metal interconnection is formed to cover the picture signal line or the scanning line, and stacked on the common electrode. A through hole is formed on the common metal interconnection. The tip end of the spacer is disposed inside the through hole.

公开(公告)号：US11126043B2

公开(公告)日：2021-09-21

申请号：US17114676

申请日：2020-12-08

Applicant: Japan Display Inc.

Inventor： Motoharu Miyamoto

IPC: G02F1/1343 ,  G02F1/1362 ,  G02F1/1339

Abstract: The liquid crystal display device includes: a TFT substrate including scanning lines extending in a first direction and being arranged in a second direction, video signal lines extending in the second direction and being arranged in the first direction, pixel electrodes arranged in regions surrounded by the scanning lines and the video signal lines, and common electrodes formed with an insulating film arranged between the common electrodes and the pixel electrodes; a counter substrate opposed to the TFT substrate; and a liquid crystal. The first common electrode extends between the first and second scanning lines in the first direction, and the second common electrode extends between the second and third scanning lines in the first direction. The first and second common electrodes are electrically connected by a bridge. The bridge covers the first video signal line without covering the second video signal line, when seen in a plan view.

公开(公告)号：US10969638B2

公开(公告)日：2021-04-06

申请号：US16171728

申请日：2018-10-26

Applicant: Japan Display Inc.

Inventor： Takahiro Ochiai ,  Motoharu Miyamoto ,  Masahiro Hoshiba

IPC: G02F1/1362 ,  G02F1/1368 ,  G02F1/1335 ,  G02F1/1345 ,  H01L29/786 ,  G09G3/36 ,  H01L27/12

Abstract: A liquid crystal display device is provided with a thin film transistor which includes a gate electrode film that is provided in a first electrode layer located over a first insulating layer, a semiconductor film that is disposed over the gate electrode film via a second insulating layer, a drain electrode and a source electrode that are provided in a second electrode layer located over the semiconductor film and are in contact with an upper surface of the semiconductor film, and a light blocking film that is disposed under the first insulating layer. At least a part thereof overlaps the semiconductor film and the gate electrode film in a plan view. One of the drain electrode and the source electrode is connected to a gate line, and the light blocking film is electrically connected to the source electrode.

公开(公告)号：US10725345B2

公开(公告)日：2020-07-28

申请号：US15916625

申请日：2018-03-09

Applicant: Japan Display Inc.

Inventor： Masateru Morimoto ,  Saori Sugiyama ,  Motoharu Miyamoto

IPC: G02F1/1362 ,  G02F1/1343 ,  G02F1/1339

Abstract: The displacement between a TFT substrate and a counter substrate and the cut of an alignment film caused by a columnar spacer are prevented. A liquid crystal display device includes: a TFT substrate including a scanning line extending in a first direction, a picture signal line extending in a second direction, a pixel electrode formed in a region surrounded by the scanning line and the picture signal line, and a common electrode formed as opposed to the pixel electrode through an insulating film; a counter substrate disposed as opposed to the TFT substrate and having a spacer; and a liquid crystal sandwiched between the substrates. A common metal interconnection is formed to cover the picture signal line or the scanning line, and stacked on the common electrode. A through hole is formed on the common metal interconnection. The tip end of the spacer is disposed inside the through hole.

公开(公告)号：US20200019028A1

公开(公告)日：2020-01-16

申请号：US16583561

申请日：2019-09-26

Applicant: Japan Display Inc.

Inventor： Motoharu Miyamoto ,  Atsuhiro Katayama

IPC: G02F1/1362 ,  H01L27/12 ,  G02F1/1368 ,  G02F1/1343 ,  G02F1/1333 ,  G02F1/133

Abstract: A liquid crystal display device includes a TFT substrate and a counter substrate with liquid crystal sandwiched therebetween. The TFT substrate has scanning lines 10 extending in a first direction and arrayed in a second direction and video signal lines 20 extending in the second direction and arrayed in the first direction. The TFT substrate has a display area 500 in which TFT pixels are arrayed in a matrix pattern, and a frame area 600 surrounding the display area. In the frame area 600, common bus wires 521 are formed in the same layer and with the same material as the video signal lines 20 and are impressed with a common voltage. Dummy TFTs are formed in a layer under the common bus wires 521. The scanning lines 10, extending over the frame area 600, are divided outside the display area and are interconnected by bridging wires 170.

公开(公告)号：US10437116B2

公开(公告)日：2019-10-08

申请号：US16176088

申请日：2018-10-31

Applicant: Japan Display Inc.

Inventor： Motoharu Miyamoto

IPC: G02F1/1343 ,  G02F1/1362 ,  G02F1/1339

Abstract: The liquid crystal display device includes: a TFT substrate including scanning lines extending in a first direction and being arranged in a second direction, video signal lines extending in the second direction and being arranged in the first direction, pixel electrodes arranged in regions surrounded by the scanning lines and the video signal lines, and common electrodes formed with an insulating film arranged between the common electrodes and the pixel electrodes; a counter substrate opposed to the TFT substrate; and a liquid crystal. The first common electrode extends between the first and second scanning lines in the first direction, and the second common electrode extends between the second and third scanning lines in the first direction. The first and second common electrodes are electrically connected by a bridge. The bridge covers the first video signal line without covering the second video signal line, when seen in a plan view.

公开(公告)号：US10288942B2

公开(公告)日：2019-05-14

申请号：US15662350

申请日：2017-07-28

Applicant: Japan Display Inc.

Inventor： Motoharu Miyamoto

IPC: G02F1/1362 ,  G02F1/1337 ,  G02F1/1343 ,  G02F1/1368

Abstract: The invention prevents the display unevenness of a high-resolution liquid crystal display device that results from the presence of regions where an alignment film is not applied. The invention provides a liquid crystal display device including: a TFT substrate having scan lines, video signal lines, and pixels formed by the intersecting scan lines and video signal lines; a counter substrate; and a liquid crystal layer placed between the TFT substrate and the counter substrate. Each of the pixels includes a TFT, a pixel electrode, a common electrode, and a through-hole and an opening that are used to connect the TFT and the pixel electrode. Connective ITO is formed in and around the through-hole at the same time as the common electrode is formed. A step d is formed at an edge portion of the connective ITO and covered with an alignment film.

公开(公告)号：US09910331B2

公开(公告)日：2018-03-06

申请号：US14844464

申请日：2015-09-03

Applicant: Japan Display Inc.

Inventor： Motoharu Miyamoto ,  Teppei Yamada ,  Yasuhiro Kanaya

IPC: G02F1/1362 ,  H01L27/12 ,  G02F1/1368

CPC classification number: G02F1/136227 ,  G02F1/1362 ,  G02F1/136286 ,  G02F1/1368 ,  H01L27/1222 ,  H01L27/124 ,  H01L27/1251

Abstract: A display device is provided with a pixel and a dummy pixel including a gate line and a signal line. The dummy pixel includes the gate line and a dummy semiconductor layer crossing the gate line through an insulating layer. The dummy semiconductor layer is electrically separated from the dummy semiconductor layer of the dummy pixel adjacent in the Y direction dummy pixel. The dummy pixel further includes a dummy signal line extending in the Y direction. The dummy signal line is connected to the dummy semiconductor layer through a plurality of contact holes. The contact holes are arranged with the gate line interposed between them in plan view.