公开(公告)号：US20190114029A1

公开(公告)日：2019-04-18

申请号：US16161901

申请日：2018-10-16

Applicant: Japan Display Inc.

Inventor： Hiroshi MIZUHASHI ,  Yasuyuki TERANISHI ,  Toshiaki FUKUSHIMA ,  Daisuke ITO ,  Gen KOIDE ,  Tadayoshi KATSUTA

IPC: G06F3/041 ,  G06F3/044 ,  G02F1/1368 ,  G02F1/1362 ,  G09G3/36 ,  G02F1/133 ,  G02F1/1343

Abstract: A liquid crystal display device includes a liquid crystal element array having liquid crystal display elements arranged in matrix, scanning lines arranged in each row of the liquid crystal element array and supplying a scanning signal to the liquid crystal display elements in a corresponding row, signal lines arranged in each column of the liquid crystal element array and supplying an image signal to the liquid crystal display elements in a corresponding column, drive electrodes arranged in the column of the liquid crystal element array and to which a drive signal to detect a touch is supplied, a signal line drive circuit arranged along one side of the liquid crystal element array parallel to the row of the liquid crystal element array and forming the image signal, and a first electrode drive circuit arranged along the other side of the liquid crystal element array and forming the drive signal.

公开(公告)号：US20190087038A1

公开(公告)日：2019-03-21

申请号：US16193810

申请日：2018-11-16

Applicant: Japan Display Inc.

Inventor： Tadayoshi KATSUTA ,  Hiroshi MIZUHASHI ,  Hayato KURASAWA

IPC: G06F3/046 ,  G06F3/0354 ,  G02F1/1333 ,  G06F3/044 ,  G06F3/047 ,  G06F3/041 ,  G02F1/1343

Abstract: An input detection device is provided with a plurality of drive electrodes, a metal electrode opposed to the plurality of drive electrodes and having a predetermined wiring pattern, and a light-shielding film. In plan view, a width of the wiring pattern of the metal electrode overlapped with a portion of the light-shielding film with a large width is larger than a width of the wiring pattern of the metal electrode overlapped with portions other than the portion of the light-shielding film with the large width.

公开(公告)号：US20180059842A1

公开(公告)日：2018-03-01

申请号：US15686707

申请日：2017-08-25

Applicant: Japan Display Inc.

Inventor： Tadayoshi KATSUTA

IPC: G06F3/041 ,  G06F3/044 ,  G06F3/046 ,  G06F3/0354

CPC classification number: G06F3/0412 ,  G06F3/03545 ,  G06F3/0416 ,  G06F3/044 ,  G06F3/046 ,  G06F2203/04101 ,  G06F2203/04106 ,  H03K17/962

Abstract: Provided is an input detection device capable of suppressing a change in detection sensitivity depending on a position. The input detection device includes: signal wirings having end portions, and arranged so as to extend in a first direction; drive electrodes each extending in a second direction crossing the first direction, and arranged in parallel to the first direction; a plurality of first switches arranged between the end portions of the drive electrodes and the signal wirings; a drive signal circuit supplying a drive signal to the end portions; and a selection circuit controlling the first switches in detecting proximity of an external object. When the proximity of the external object is detected based on a magnetic field from the external object, the number of the first switches electrically connecting the drive electrodes close to the end portions to the signal wirings is smaller than the number of the first switches electrically connecting the drive electrodes away from the end portions to the signal wirings.

公开(公告)号：US20170357367A1

公开(公告)日：2017-12-14

申请号：US15618828

申请日：2017-06-09

Applicant: Japan Display Inc.

Inventor： Tadayoshi KATSUTA

IPC: G06F3/041 ,  G06F3/0354 ,  G02F1/1343 ,  G06F3/044 ,  G06F3/038 ,  G06F3/046 ,  G02F1/1333 ,  G09G3/36 ,  G02F1/1335 ,  G06F3/047 ,  G02F1/1368

Abstract: An input detection device includes: a plurality of drive electrodes each of which includes a first end and a second end; a first scanner circuit and a second scanner circuit which select the first ends of the plurality of drive electrodes; a third scanner circuit and a fourth scanner circuit which select the second ends of the plurality of drive electrodes; and a controller which supplies a first drive voltage to the first end of a first drive electrode and to the second end of a second drive electrode and supplies a second drive voltage different from the first drive voltage to the second end of the first drive electrode and to the first end of the second drive electrode via the first scanner circuit, the second scanner circuit, the third scanner circuit, and the fourth scanner circuit.

公开(公告)号：US20170357355A1

公开(公告)日：2017-12-14

申请号：US15664603

申请日：2017-07-31

Applicant: Japan Display Inc.

Inventor： Toshiaki FUKUSHIMA ,  Koji NOGUCHI ,  Hiroshi MIZUHASHI ,  Gen KOIDE ,  Tadayoshi KATSUTA

IPC: G06F3/041 ,  G06F3/044 ,  G09G3/36

CPC classification number: G06F3/0412 ,  G06F3/0416 ,  G06F3/044 ,  G09G3/3655 ,  G09G3/3666 ,  G09G2300/0876 ,  G09G2310/0286

Abstract: According to one embodiment, a display device provided with a sensor, includes a plurality of electrodes for a touch sensor, which comprise a plurality of drive electrodes and a plurality of detection electrodes, and a display panel, wherein a plurality of common electrodes for display which are provided in the display panel are also applied as the drive electrodes, an image display operation of the display panel and a driving operation of the electrodes for the touch sensor are performed in a time sharing manner, and in the driving operation of the electrodes for the touch sensor, a code division multiplexing (CDM) drive is performed in units of successive common electrodes, and a drive signal which synchronizes with the CDM drive is input to all common electrodes other than successive common electrodes subjected to the CDM drive.

公开(公告)号：US20160225787A1

公开(公告)日：2016-08-04

申请号：US14995752

申请日：2016-01-14

Applicant: Japan Display Inc.

Inventor： Tadayoshi KATSUTA ,  Gen KOIDE

IPC: H01L27/12 ,  G06F3/044 ,  G09G3/36 ,  G06F3/041 ,  H01L27/02 ,  H01L27/092

CPC classification number: G06F3/0416 ,  G02F1/13338 ,  G02F1/133514 ,  G02F1/133528 ,  G02F1/134309 ,  G02F1/13452 ,  G02F1/136286 ,  G02F1/1368 ,  G02F2001/136222 ,  G02F2201/123 ,  G06F3/0412 ,  G06F3/044 ,  G06F2203/04102 ,  G09G3/3611 ,  G09G3/3674 ,  G09G3/3696 ,  G09G2300/0426 ,  G09G2300/0439 ,  G09G2300/08 ,  G09G2300/0876 ,  G09G2310/0281 ,  G09G2310/0291 ,  G09G2330/04 ,  H01L27/0296 ,  H01L27/1222 ,  H01L27/124 ,  H01L29/78666 ,  H01L29/78675

Abstract: An area of a region arranged on one side out of a display region in a direction in which scanning signal lines extend is reduced. A display apparatus includes: a partial circuit; a plurality of scanning signal lines; and a plurality of scanning signal connection wirings for connecting the partial circuit and each of the plurality of scanning signal lines. Each of the plurality of scanning signal lines extends in an X-axis direction, and is arranged with a pitch in a Y-axis direction. A plurality of ends respectively included in the plurality of scanning signal connection wirings are connected to the partial circuit, and are arranged in the Y-axis direction. A distance in the Y-axis direction between the respective centers of the two ends adjacent to each other is narrower than the pitch.

Abstract translation: 减少扫描信号线延伸的方向上的显示区域的一侧的区域的区域。 一种显示装置，包括：部分电路; 多条扫描信号线; 以及用于连接部分电路和多条扫描信号线中的每一条的多条扫描信号连接布线。 多个扫描信号线中的每一个沿X轴方向延伸，并且以Y轴方向的间距配置。 分别包括在多个扫描信号连接配线中的多个端部连接到部分电路，并且被布置在Y轴方向上。 彼此相邻的两端的各中心之间的Y轴方向的距离比间距窄。

公开(公告)号：US20150355764A1

公开(公告)日：2015-12-10

申请号：US14708761

申请日：2015-05-11

Applicant: Japan Display Inc.

Inventor： Hiroshi MIZUHASHI ,  Tadayoshi KATSUTA ,  Gen KOIDE ,  Toshiaki FUKUSHIMA

IPC: G06F3/041 ,  G09G3/36 ,  G09G5/00 ,  G09G3/20

CPC classification number: G06F3/0412 ,  G06F3/044 ,  G09G3/3648 ,  G09G3/3685 ,  G09G2300/023 ,  G09G2300/0426 ,  G09G2300/0876 ,  G09G2310/0297 ,  G09G2310/08

Abstract: According to one embodiment, a display device includes first and second substrate units, a display function layer, and a drive element. The first substrate unit includes a first substrate, a display unit, and a circuit unit. The first substrate has a first surface including a display region and a peripheral region. The display unit is provided in the display region, and includes first lines, second lines, switch elements, pixel electrodes, and third lines. The circuit unit is provided in the peripheral region, and is electrically connected to one of the second lines and one of the third lines. The second substrate unit includes a second substrate and fourth lines. The display function layer is provided between the first and second substrate units. The drive element is provided on the peripheral region. At least a portion of the circuit unit is disposed between the drive element and the first substrate.

Abstract translation: 根据一个实施例，显示装置包括第一和第二基板单元，显示功能层和驱动元件。 第一基板单元包括第一基板，显示单元和电路单元。 第一基板具有包括显示区域和周边区域的第一表面。 显示单元设置在显示区域中，并且包括第一行，第二行，开关元件，像素电极和第三行。 电路单元设置在周边区域中，并且电连接到第二线路和第三线路中的一条线路。 第二基板单元包括第二基板和第四线。 显示功能层设置在第一和第二基板单元之间。 驱动元件设置在周边区域上。 电路单元的至少一部分设置在驱动元件和第一基板之间。

公开(公告)号：US20150145822A1

公开(公告)日：2015-05-28

申请号：US14546546

申请日：2014-11-18

Applicant: Japan Display Inc.

Inventor： Tadayoshi KATSUTA

IPC: G06F3/044

CPC classification number: G06F3/044 ,  G06F3/0412 ,  G06F3/0416 ,  G06F2203/04108

Abstract: A display device with a touch detecting function includes wiring for touch arranged in a peripheral area positioned on the outside of a display area, and a selection switch that selects one of drive electrodes to be coupled to the wiring for touch. A drive electrode scanning unit selects one of drive electrodes and includes a plurality of transfer circuits in the peripheral area. Part of the transfer circuits is a transfer circuit that performs output to the selection switch.

Abstract translation: 具有触摸检测功能的显示装置包括布置在位于显示区域外部的外围区域中的触摸布线，以及选择开关，其选择要与触摸的布线耦合的驱动电极中的一个。 驱动电极扫描单元选择驱动电极中的一个并且在周边区域中包括多个传输电路。 传输电路的一部分是向选择开关输出的传输电路。

公开(公告)号：US20250029572A1

公开(公告)日：2025-01-23

申请号：US18771564

申请日：2024-07-12

Applicant: Japan Display Inc.

Inventor： Tadayoshi KATSUTA

IPC: G09G3/36 ,  G02F1/1362 ,  G02F1/1368 ,  G11C19/28 ,  H01L27/12

Abstract: A display device includes a substrate having a display region in which a plurality of pixels are arrayed in a first direction and a second direction different from the first direction, a plurality of scanning lines coupled to the pixels arrayed in the first direction, a plurality of signal lines coupled to the pixels arrayed in the second direction, a gate driver configured to supply a scanning signal to the scanning lines, and a signal line selection circuit configured to supply a pixel signal to the signal lines.

公开(公告)号：US20240296807A1

公开(公告)日：2024-09-05

申请号：US18663309

申请日：2024-05-14

Applicant: Japan Display Inc.

Inventor： Tadayoshi KATSUTA

IPC: G09G3/36

CPC classification number: G09G3/3655 ,  G09G2300/0426 ,  G09G2320/046 ,  G09G2330/021

Abstract: According to an aspect, a display device includes a pixel, a scanning line, a signal line, and a drive circuit. The drive circuit includes a gate driver, a signal line selection circuit, and a display control circuit. Holding capacitance is provided between a pixel electrode and a common electrode supplied with a common potential lower than a GND potential in a display operation. The display control circuit is configured to, at first time in a power-off sequence, supply a first power supply voltage signal to the scanning line, supply the common potential to the common electrode, and supply the GND potential to the signal line. The display control circuit is configured to supply the GND potential to the scanning line at second time after the first time. The display control circuit is configured to supply the GND potential to the common electrode at third time after the second time.