公开(公告)号：US10481455B2

公开(公告)日：2019-11-19

申请号：US16223554

申请日：2018-12-18

Applicant: Japan Display Inc.

Inventor： Daisuke Ito ,  Hideyuki Omori

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

Abstract: A liquid crystal display device includes: a plurality of scan lines and signal lines on one of a pair of substrates arranged to be opposed to each other with a liquid crystal layer sandwiched therebetween, the scan lines and signal lines extending in different directions; and an orientation film, pixel electrode, insulating layer and common electrode, the orientation film being rubbed in a rubbing direction having a given inclination with respect to a pixel arrangement direction. The pixel electrode is partitioned by the scan lines and signal lines and has subpixels made up of first and second regions. The first region has a plurality of slit-shaped openings having a given inclination in a first direction with respect to the rubbing direction. The second region has a plurality of slit-shaped openings having a given inclination in a second direction with respect to the rubbing direction.

公开(公告)号：US20190302945A1

公开(公告)日：2019-10-03

申请号：US16444377

申请日：2019-06-18

Applicant: Japan Display Inc.

Inventor： Hayato Kurasawa ,  Yasuyuki Teranishi ,  Hiroshi Mizuhashi ,  Koji Ishizaki ,  Daisuke Ito

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

Abstract: According to one embodiment, a sensor-equipped display device includes first electrodes and a detection electrode. The first electrodes constitute sensor drive electrodes by being supplied with sensor drive signals separately and sequentially or sensor drive electrodes by simultaneously supplying the sensor drive signals to the first electrodes adjacent to each other. A width of the sensor drive electrode including the first electrode on the edge is smaller than a width of the other sensor drive electrode not including the first electrode on the edge.

公开(公告)号：US10379652B2

公开(公告)日：2019-08-13

申请号：US16121169

申请日：2018-09-04

Applicant: Japan Display Inc.

Inventor： Hayato Kurasawa ,  Yasuyuki Teranishi ,  Hiroshi Mizuhashi ,  Koji Ishizaki ,  Daisuke Ito

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

Abstract: According to one embodiment, a sensor-equipped display device includes first electrodes and a detection electrode. The first electrodes constitute sensor drive electrodes by being supplied with sensor drive signals separately and sequentially or sensor drive electrodes by simultaneously supplying the sensor drive signals to the first electrodes adjacent to each other. A width of the sensor drive electrode including the first electrode on the edge is smaller than a width of the other sensor drive electrode not including the first electrode on the edge.

公开(公告)号：US20190155434A1

公开(公告)日：2019-05-23

申请号：US16251190

申请日：2019-01-18

Applicant: Japan Display Inc.

Inventor： Tadayoshi Katsuta ,  Koji Noguchi ,  Daisuke Ito ,  Yasuyuki Teranishi

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

CPC classification number: G06F3/0412 ,  G06F3/0416 ,  G06F3/044 ,  G06F2203/04107 ,  G06F2203/04108 ,  G09G3/3648 ,  G09G2354/00

Abstract: A performance of a display device having an input device is improved. A display device includes: an electro-optical layer; a first driving electrode and a second driving electrode which drives the electro-optical layer; a driver chip which outputs a video signal; a switch circuit which is arranged outside the driver chip, which selects a potential to be supplied to the second driving electrode, and which includes a first switch element and a second switch element; a shift register circuit connected to the switch circuit; and a detection circuit which detects that an object is close or in contact. Each of the first switch element and the second switch element is selectively turned ON or OFF by the shift register circuit. The detection circuit is electrically connected to the first switch element and the second switch element.

公开(公告)号：US10222898B2

公开(公告)日：2019-03-05

申请号：US15170120

申请日：2016-06-01

Applicant: Japan Display Inc.

Inventor： Daisuke Ito ,  Koji Noguchi ,  Hidetoshi Komatsu ,  Toshiaki Fukushima

IPC: G06F3/041 ,  G06F3/044 ,  G06F1/3234 ,  G06F3/038 ,  G06F3/0488 ,  G02F1/1333

Abstract: According to an aspect, a display device with a touch detection function includes a display panel and a touch panel. The touch panel includes first electrodes extending in one direction. The display panel includes second electrodes interesting with the first electrodes in planar view and serving as common electrodes that supply a common potential to pixels in a display area. The display panel also includes pixel signal lines and scanning signal lines interesting with each other in planar view. The pixel signal lines and the scanning signal lines are made into a floating state in a touch detection period in which a first drive signal is applied to the first electrodes, and a second drive signal is applied to the second electrodes at predetermined intervals to perform touch detection based on change in voltage of the first electrodes and change in voltage of the second electrodes.

公开(公告)号：US20180373374A1

公开(公告)日：2018-12-27

申请号：US16121169

申请日：2018-09-04

Applicant: Japan Display Inc.

Inventor： Hayato Kurasawa ,  Yasuyuki Teranishi ,  Hiroshi Mizuhashi ,  Koji Ishizaki ,  Daisuke Ito

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

CPC classification number: G06F3/0412 ,  G02F1/13338 ,  G02F1/134309 ,  G06F3/0416 ,  G06F3/044 ,  G06F2203/04112

Abstract: According to one embodiment, a sensor-equipped display device includes first electrodes and a detection electrode. The first electrodes constitute sensor drive electrodes by being supplied with sensor drive signals separately and sequentially or sensor drive electrodes by simultaneously supplying the sensor drive signals to the first electrodes adjacent to each other. A width of the sensor drive electrode including the first electrode on the edge is smaller than a width of the other sensor drive electrode not including the first electrode on the edge.

公开(公告)号：US10162457B2

公开(公告)日：2018-12-25

申请号：US15200179

申请日：2016-07-01

Applicant: Japan Display Inc.

Inventor： Daisuke Ito ,  Koji Shigehiro ,  Nobuhiko Yokoo

IPC: G06F3/041 ,  G06F3/044 ,  G06F1/32 ,  G02F1/1333

Abstract: A display device with a touch detection function includes a substrate, pixel electrodes arranged in a matrix in a display region on a plane parallel to the substrate, a display function layer having a function to display the image in the display region, drive electrodes provided facing the pixel electrodes, touch detection electrodes that form electrostatic capacitance between there and the drive electrodes, a control unit that generates a control signal to switch between a display operation period for applying a display signal between the pixel and drive electrodes and a display stop period for stopping the display operation. The control unit generates first and second control signals respectively having a first frequency and a second frequency that is different from the first frequency, and has first and second operation modes respectively including a period controlled by the first control signal and a period controlled by the second control signal.

公开(公告)号：US10955953B2

公开(公告)日：2021-03-23

申请号：US16859281

申请日：2020-04-27

Applicant: Japan Display Inc.

Inventor： Hiroshi Mizuhashi ,  Yasuyuki Teranishi ,  Toshiaki Fukushima ,  Daisuke Ito ,  Gen Koide ,  Tadayoshi Katsuta

IPC: G06F3/041 ,  G09G3/36 ,  G06F3/044 ,  G02F1/133 ,  G02F1/1343 ,  G02F1/1362 ,  G02F1/1368 ,  G02F1/1345 ,  G02F1/1333

Abstract: A liquid crystal display device is provided and includes a liquid crystal element array having pixel electrodes and switching elements arranged in a matrix form; scanning lines arranged in each row of the liquid crystal element array and supply a scanning signal to switching elements; signal lines arranged in each column of the liquid crystal element array and supply an image signal to the pixel electrodes through switching elements; touch electrodes overlapping pixel electrodes and arranged in the column of the liquid crystal element array; 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 forms the image signal; first circuit arranged along the other side of the liquid crystal element array parallel to the row of the liquid crystal element array and is connected to the touch electrodes; and second circuit arranged along the one side of the liquid crystal element array and is connected to the touch electrodes, wherein a touch signal is supplied from the second circuit on the one side of the liquid crystal element array and the touch signal is supplied from the first circuit on the other side of the liquid crystal element array.

公开(公告)号：US10809860B2

公开(公告)日：2020-10-20

申请号：US16388125

申请日：2019-04-18

Applicant: Japan Display Inc.

Inventor： Hiroshi Mizuhashi ,  Makoto Hayashi ,  Yasuyuki Teranishi ,  Daisuke Ito

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

Abstract: A display device including: a plurality of pixels arranged in a matrix form and having a first side parallel to a row and a second side opposite to the first side; scanning lines arranged in each row of the pixels to supply a scanning signal to the pixels; signal lines arranged in each column of the pixels to supply an image signal to the pixels; a drive electrode circuit which is arranged along the first side; and a plurality of drive electrodes which are arranged in the direction of column of the pixels and to which a drive signal to detect an object is supplied from the drive electrode circuit, wherein the signal lines transmit the image signal in a display period, and at least one of the signal lines transmits a control signal to control the drive electrode circuit in a touch detection period.

公开(公告)号：US20200041856A1

公开(公告)日：2020-02-06

申请号：US16599457

申请日：2019-10-11

Applicant: Japan Display Inc.

Inventor： Daisuke Ito ,  Hideyuki Omori

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

Abstract: A liquid crystal display device includes: a plurality of scan lines and signal lines on one of a pair of substrates arranged to be opposed to each other with a liquid crystal layer sandwiched therebetween, the scan lines and signal lines extending in different directions; and an orientation film, pixel electrode, insulating layer and common electrode, the orientation film being rubbed in a rubbing direction having a given inclination with respect to a pixel arrangement direction. The pixel electrode is partitioned by the scan lines and signal lines and has subpixels made up of first and second regions. The first region has a plurality of slit-shaped openings having a given inclination in a first direction with respect to the rubbing direction. The second region has a plurality of slit-shaped openings having a given inclination in a second direction with respect to the rubbing direction.