公开(公告)号：US11543708B2

公开(公告)日：2023-01-03

申请号：US16521228

申请日：2019-07-24

Applicant: Japan Display Inc.

Inventor： Tomohide Onogi ,  Yasuo Segawa

IPC: G02F1/1343 ,  G02F1/1362 ,  G02F1/1333 ,  G02F1/1368 ,  H01L27/12 ,  H01L29/786

Abstract: A liquid crystal display device according to FFS technology is provided, which sufficiently provides a common electrode with common electric potential and improves an aperture ratio of pixels. A pixel electrode is formed of a first layer transparent electrode. A common electrode made of a second layer transparent electrode is formed above the pixel electrode interposing an insulation film between them. The common electrode in an upper layer is provided with a plurality of slits. The common electrode extends over all the pixels in a display region. An end of the common electrode is disposed on a periphery of the display region and connected with a peripheral common electric potential line that provides a common electric potential Vcom. There is provided neither an auxiliary common electrode line nor a pad electrode, both of which are provided in a liquid crystal display device according to a conventional art.

公开(公告)号：US20220137468A1

公开(公告)日：2022-05-05

申请号：US17578883

申请日：2022-01-19

Applicant: Japan Display Inc.

Inventor： Yasuo Segawa ,  Masaaki Aota ,  Tomohide Onogi ,  Hiroshi Matsuda

IPC: G02F1/1362 ,  G02F1/1345

Abstract: A liquid crystal display device includes a first substrate, a second substrate and liquid crystal. The first substrate includes pixel electrodes, a peripheral circuit and a dummy wiring. The peripheral circuit and the dummy wiring are provided outside a pixel area in which the pixel electrodes are arranged. The second substrate is opposed to the first substrate through the liquid crystal. The second substrate includes a translucent conductive film that is provided on an opposite side of the second substrate to a side where the liquid crystal is present. The dummy wiring is located on an outer peripheral side of the substrates than the peripheral circuit and is provided independently of the peripheral circuit in terms of circuit. The dummy wiring is grounded outside the first substrate.

公开(公告)号：US10935856B2

公开(公告)日：2021-03-02

申请号：US16776120

申请日：2020-01-29

Applicant: Japan Display Inc.

Inventor： Yasuo Segawa ,  Masaaki Aota ,  Tomohide Onogi ,  Hiroshi Matsuda

IPC: G02F1/1362 ,  G02F1/1345

Abstract: A liquid crystal display device includes a first substrate, a second substrate and liquid crystal. The first substrate includes pixel electrodes, a peripheral circuit and a dummy wiring. The peripheral circuit and the dummy wiring are provided outside a pixel area in which the pixel electrodes are arranged. The second substrate is opposed to the first substrate through the liquid crystal. The second substrate includes a translucent conductive film that is provided on an opposite side of the second substrate to a side where the liquid crystal is present. The dummy wiring is located on an outer peripheral side of the substrates than the peripheral circuit and is provided independently of the peripheral circuit in terms of circuit. The dummy wiring is grounded outside the first substrate.

公开(公告)号：US10802353B2

公开(公告)日：2020-10-13

申请号：US16163794

申请日：2018-10-18

Applicant: Japan Display Inc.

Inventor： Tomohide Onogi ,  Yasuo Segawa

IPC: G02F1/1343 ,  G02F1/1362 ,  G02F1/1333 ,  G02F1/1368 ,  H01L27/12 ,  H01L29/786

Abstract: A liquid crystal display device according to FFS technology is provided, which sufficiently provides a common electrode with common electric potential and improves an aperture ratio of pixels. A pixel electrode is formed of a first layer transparent electrode. A common electrode made of a second layer transparent electrode is formed above the pixel electrode interposing an insulation film between them. The common electrode in an upper layer is provided with a plurality of slits. The common electrode extends over all the pixels in a display region. An end of the common electrode is disposed on a periphery of the display region and connected with a peripheral common electric potential line that provides a common electric potential Vcom. There is provided neither an auxiliary common electrode line nor a pad electrode, both of which are provided in a liquid crystal display device according to a conventional art.

公开(公告)号：US20200166812A1

公开(公告)日：2020-05-28

申请号：US16776120

申请日：2020-01-29

Applicant: Japan Display Inc.

Inventor： Yasuo Segawa ,  Masaaki Aota ,  Tomohide Onogi ,  Hiroshi Matsuda

IPC: G02F1/1362 ,  G02F1/1345

Abstract: A liquid crystal display device includes a first substrate, a second substrate and liquid crystal. The first substrate includes pixel electrodes, a peripheral circuit and a dummy wiring. The peripheral circuit and the dummy wiring are provided outside a pixel area in which the pixel electrodes are arranged. The second substrate is opposed to the first substrate through the liquid crystal. The second substrate includes a translucent conductive film that is provided on an opposite side of the second substrate to a side where the liquid crystal is present. The dummy wiring is located on an outer peripheral side of the substrates than the peripheral circuit and is provided independently of the peripheral circuit in terms of circuit. The dummy wiring is grounded outside the first substrate.

公开(公告)号：US09946125B2

公开(公告)日：2018-04-17

申请号：US15162110

申请日：2016-05-23

Applicant: Japan Display Inc.

Inventor： Tomohide Onogi ,  Yasuo Segawa

IPC: G02F1/1343 ,  G02F1/1362 ,  G02F1/1333 ,  G02F1/1368

CPC classification number: G02F1/134336 ,  G02F1/133345 ,  G02F1/134363 ,  G02F1/13439 ,  G02F1/136227 ,  G02F1/136286 ,  G02F1/1368 ,  G02F2001/133357 ,  G02F2001/134372 ,  G02F2001/136295 ,  G02F2201/121 ,  G02F2201/123 ,  G02F2201/40 ,  G02F2202/103 ,  G02F2202/104 ,  H01L27/1222 ,  H01L27/1244 ,  H01L29/78669 ,  H01L29/78678

Abstract: A liquid crystal display device according to FFS technology is capable of providing a common electrode with common electric potential. A pixel electrode is formed of a first layer transparent electrode. A common electrode made of a second layer transparent electrode is formed above the pixel electrode interposing an insulation film between them. The common electrode in an upper layer is provided with a plurality of slits. The common electrode extends over all the pixels in a display region. An end of the common electrode is disposed on a periphery of the display region and connected with a peripheral common electric potential line that provides a common electric potential Vcom. There is provided neither an auxiliary common electrode line nor a pad electrode, both of which are provided in a liquid crystal display device according to a conventional art.

公开(公告)号：US11143923B2

公开(公告)日：2021-10-12

申请号：US16995368

申请日：2020-08-17

Applicant: Japan Display Inc.

Inventor： Tomohide Onogi ,  Yasuo Segawa

IPC: G02F1/1343 ,  G02F1/1362 ,  G02F1/1333 ,  G02F1/1368 ,  H01L27/12 ,  H01L29/786

Abstract: In an example, a display device comprises a substrate with pixels arranged in a display portion, a signal line control circuit connected to signal lines, a plurality of thin film transistors inputting a pixel signal to a corresponding one of the pixels from the corresponding one of the signal lines, a common electrode overlapping the entire display portion, an insulating film disposed on the common electrode, a common line connected to the common electrode through contact holes in the insulating film, where the common line is disposed between the substrate and the insulating film, and outside the display portion along four sides of the display portion, a plurality of gate lines electrically connected to the thin film transistors, and a gate line control circuit connected to and configured to provide a gate signal to each of the gate lines, and disposed between the display portion and the common line.

公开(公告)号：US10126609B2

公开(公告)日：2018-11-13

申请号：US15423209

申请日：2017-02-02

Applicant: Japan Display Inc.

Inventor： Tomohide Onogi ,  Yasuo Segawa

IPC: G02F1/1333 ,  G02F1/1343 ,  G02F1/1362 ,  G02F1/1368 ,  H01L27/12 ,  H01L29/786

Abstract: A liquid crystal display device according to FFS technology is provided, which sufficiently provides a common electrode with common electric potential and improves an aperture ratio of pixels. A pixel electrode is formed of a first layer transparent electrode. A common electrode made of a second layer transparent electrode is formed above the pixel electrode interposing an insulation film between them. The common electrode in an upper layer is provided with a plurality of slits. The common electrode extends over all the pixels in a display region. An end of the common electrode is disposed on a periphery of the display region and connected with a peripheral common electric potential line that provides a common electric potential Vcom. There is provided neither an auxiliary common electrode line nor a pad electrode, both of which are provided in a liquid crystal display device according to a conventional art.

公开(公告)号：US20180275470A1

公开(公告)日：2018-09-27

申请号：US15984873

申请日：2018-05-21

Applicant: Japan Display Inc.

Inventor： Yasuo Segawa ,  Masaaki Aota ,  Tomohide Onogi ,  Hiroshi Matsuda

IPC: G02F1/1362 ,  G02F1/1345 ,  G02F1/1343 ,  G02F1/1337

CPC classification number: G02F1/136204 ,  G02F1/13452 ,  G02F2202/22

Abstract: A liquid crystal display device includes a first substrate, a second substrate and liquid crystal. The first substrate includes pixel electrodes, a peripheral circuit and a dummy wiring. The peripheral circuit and the dummy wiring are provided outside a pixel area in which the pixel electrodes are arranged. The second substrate is opposed to the first substrate through the liquid crystal. The second substrate includes a translucent conductive film that is provided on an opposite side of the second substrate to a side where the liquid crystal is present. The dummy wiring is located on an outer peripheral side of the substrates than the peripheral circuit and is provided independently of the peripheral circuit in terms of circuit. The dummy wiring is grounded outside the first substrate.

公开(公告)号：US20160202578A1

公开(公告)日：2016-07-14

申请号：US15078170

申请日：2016-03-23

Applicant: Japan Display Inc.

Inventor： Yasuo Segawa ,  Masaaki Aota ,  Tomohide Onogi ,  Hiroshi Matsuda

IPC: G02F1/1362 ,  G02F1/1345

CPC classification number: G02F1/136204 ,  G02F1/13452 ,  G02F2202/22

Abstract: A liquid crystal display device includes a first substrate, a second substrate and liquid crystal. The first substrate includes pixel electrodes, a peripheral circuit and a dummy wiring. The peripheral circuit and the dummy wiring are provided outside a pixel area in which the pixel electrodes are arranged. The second substrate is opposed to the first substrate through the liquid crystal. The second substrate includes a translucent conductive film that is provided on an opposite side of the second substrate to a side where the liquid crystal is present. The dummy wiring is located on an outer peripheral side of the substrates than the peripheral circuit and is provided independently of the peripheral circuit in terms of circuit. The dummy wiring is grounded outside the first substrate.

Abstract translation: 液晶显示装置包括第一基板，第二基板和液晶。 第一基板包括像素电极，外围电路和虚拟布线。 外围电路和虚设布线设置在像素电极配置的像素区域的外侧。 第二基板通过液晶与第一基板相对。 第二基板包括半透明导电膜，其设置在第二基板的与液晶存在的一侧相反的一侧。 虚设布线位于基板的外周侧而不是外围电路，并且在电路方面与外围电路无关地设置。 虚拟布线在第一基板的外部接地。