公开(公告)号：US20210311581A1

公开(公告)日：2021-10-07

申请号：US17348361

申请日：2021-06-15

Applicant: Japan Display Inc.

Inventor： Koji Ishizaki ,  Kouji Noguchi

IPC: G06F3/041 ,  G02F1/1333 ,  G02F1/1343 ,  G06F3/044 ,  G02F1/133 ,  G02F1/1335

Abstract: A display device including a substrate, a plurality of pixel electrodes arranged in a form of a matrix in a plane parallel with the substrate, a display functional layer exerting an image display function on a basis of an image signal supplied to the plurality of pixel electrodes, a driving electrode opposed to the plurality of pixel electrodes, and a plurality of detecting electrodes arranged in a form of a plane opposed to the driving electrode, separated and arranged at a pitch of a natural number multiple of an arrangement pitch of the pixel electrodes in one direction in the arrangement plane, and each capacitively coupled with the driving electrode.

公开(公告)号：US20200233517A1

公开(公告)日：2020-07-23

申请号：US16839513

申请日：2020-04-03

Applicant: Japan Display Inc.

Inventor： Koji Ishizaki ,  Kouji Noguchi

IPC: G06F3/041 ,  G02F1/1335 ,  G02F1/133 ,  G06F3/044 ,  G02F1/1343 ,  G02F1/1333

Abstract: A display device including a substrate, a plurality of pixel electrodes arranged in a form of a matrix in a plane parallel with the substrate, a display functional layer exerting an image display function on a basis of an image signal supplied to the plurality of pixel electrodes, a driving electrode opposed to the plurality of pixel electrodes, and a plurality of detecting electrodes arranged in a form of a plane opposed to the driving electrode, separated and arranged at a pitch of a natural number multiple of an arrangement pitch of the pixel electrodes in one direction in the arrangement plane, and each capacitively coupled with the driving electrode.

公开(公告)号：US09977535B2

公开(公告)日：2018-05-22

申请号：US15468114

申请日：2017-03-24

Applicant: Japan Display, Inc

Inventor： Kouji Noguchi ,  Tsutomu Harada ,  Yoshitoshi Kida ,  Takayuki Nakanishi ,  Koji Ishizaki ,  Takeya Takeuchi

IPC: G06F3/044 ,  G06F3/041 ,  G02F1/1333 ,  G09G3/36

CPC classification number: G06F3/0416 ,  G02F1/13338 ,  G06F3/0412 ,  G06F3/044 ,  G09G3/3614 ,  G09G3/3696 ,  G09G2310/06

Abstract: A capacitance-type touch panel, allowing disturbance noise and touch detection time to be reduced and having a simple configuration, is provided. The capacitance-type touch panel including: a plurality of drive electrodes each having a strip shape; a drive control circuit performing control such that a drive signal for touch detection is selectively applied to the drive electrodes; a plurality of touch detection electrodes arranged to intersect with the drive electrodes in such a manner that capacitance is formed in each intersecting part, and each outputting a detection signal in synchronization with the drive signal; and a detection circuit detecting an external proximity object based on the detection signal. The drive control circuit controls application of the drive signal in such a manner that the detection signal is a polarity-alternating signal including a positive-negative asymmetrical signal component which is due to presence of the external proximity object.

公开(公告)号：US09953604B2

公开(公告)日：2018-04-24

申请号：US14543202

申请日：2014-11-17

Applicant: Japan Display, Inc.

Inventor： Kouji Noguchi ,  Takayuki Nakanishi ,  Koji Ishizaki ,  Yasuyuki Teranishi ,  Takeya Takeuchi

IPC: G06F3/041 ,  G09G3/36 ,  G02F1/1333 ,  G06F3/044 ,  G09G5/18 ,  G02F1/1362

CPC classification number: G09G3/3674 ,  G02F1/13338 ,  G02F1/136286 ,  G06F3/0412 ,  G06F3/044 ,  G09G3/3648 ,  G09G5/18 ,  G09G2310/02 ,  G09G2320/0252 ,  G09G2340/0435

Abstract: Disclosed herein is a display device, including: a display surface; a display functional layer adapted to control the display of a screen viewed from outside the display surface; a drive control section operable to perform display scanning and driving adapted to scan and drive, in the one direction, the plurality of drive electrodes, and also operable to perform, a plurality of times and for M display screens, detection scanning and driving adapted to continuously scan and drive all or part of the plurality of drive electrodes within the period of time; and a plurality of sensor lines arranged in a direction other than the one direction to be separate from each other, which produce an electrical change if an object to be detected comes in contact with or proximity to the display surface while the drive control section performs the detection scanning and driving.

公开(公告)号：US20170371466A1

公开(公告)日：2017-12-28

申请号：US15698232

申请日：2017-09-07

Applicant: Japan Display Inc.

Inventor： Koji Ishizaki ,  Kouji Noguchi

IPC: G06F3/041 ,  G02F1/1333 ,  G02F1/133 ,  G02F1/1335 ,  G06F3/044 ,  G02F1/1343

CPC classification number: G06F3/0412 ,  G02F1/13306 ,  G02F1/13338 ,  G02F1/133514 ,  G02F1/133528 ,  G02F1/134309 ,  G06F3/044

Abstract: A display device including a substrate, a plurality of pixel electrodes arranged in a form of a matrix in a plane parallel with the substrate, a display functional layer exerting an image display function on a basis of an image signal supplied to the plurality of pixel electrodes, a driving electrode opposed to the plurality of pixel electrodes, and a plurality of detecting electrodes arranged in a form of a plane opposed to the driving electrode, separated and arranged at a pitch of a natural number multiple of an arrangement pitch of the pixel electrodes in one direction in the arrangement plane, and each capacitively coupled with the driving electrode.

公开(公告)号：US20170205936A1

公开(公告)日：2017-07-20

申请号：US15269932

申请日：2016-09-19

Applicant: Japan Display, Inc.

Inventor： Koji Ishizaki ,  Kouji Noguchi ,  Tsutomu Harada ,  Takeya Takeuchi ,  Yoshitoshi Kida ,  Takayuki Nakanishi

IPC: G06F3/041 ,  G09G3/36 ,  G02F1/1333 ,  G06F3/044

CPC classification number: G06F3/044 ,  G02F1/13338 ,  G06F3/0412 ,  G06F3/0416 ,  G06F2203/04101 ,  G06F2203/04108 ,  G09G3/3611

Abstract: A touch sensor that may detect an object away from the sensor is provided. The touch sensor includes one or more drive electrodes; one or more detection electrodes forming capacitance in cooperation with the respective drive electrodes; a detection circuit applying drive signals to the respective drive electrodes to detect the object based on detection signals obtained from the respective detection electrodes in response to the respective drive signals; and a controller controlling to change a range of electric flux lines generated between the drive electrodes and the detection electrodes.

公开(公告)号：US09626037B2

公开(公告)日：2017-04-18

申请号：US14741620

申请日：2015-06-17

Applicant: Japan Display Inc.

Inventor： Koji Ishizaki ,  Kouji Noguchi ,  Takayuki Nakanishi ,  Yasuyuki Teranishi ,  Takeya Takeuchi

IPC: G06F3/038 ,  G06F3/041 ,  G09G3/36 ,  G06F3/044 ,  G06F3/045 ,  G06K9/00

CPC classification number: G06F3/0416 ,  G06F3/0412 ,  G06F3/044 ,  G06F3/045 ,  G06F2203/04101 ,  G06F2203/04112 ,  G06K9/0051 ,  G09G3/36 ,  G09G3/3607 ,  G09G3/3614 ,  G09G3/3655 ,  G09G3/3659 ,  G09G3/3696 ,  G09G2310/0248 ,  G09G2310/0251 ,  G09G2310/0262 ,  G09G2320/0204 ,  G09G2320/0209 ,  G09G2320/0219 ,  G09G2320/029

Abstract: A display device includes: a display functional layer that can change display for each pixel in accordance with an application voltage; a plurality of driving electrodes separately disposed in one direction; a plurality of pixel signal lines to which pixel signals used for applying the application voltage to the display functional layer in accordance with an electric potential difference from the display reference electric potential are applied; a plurality of detection electrodes that are separately disposed in a direction other than the one direction, are coupled with the driving electrodes as electrostatic capacitance, generate detection electric potentials in response to the detection driving signal, and change the detection electric potential in accordance with approach of a detection target object; and a pixel signal control unit that controls the pixel signals so as to include pixel signals having different polarities during the display period.

公开(公告)号：US20230176674A1

公开(公告)日：2023-06-08

申请号：US18164753

申请日：2023-02-06

Applicant: Japan Display Inc.

Inventor： Koji Ishizaki ,  Kouji Noguchi

IPC: G06F3/041 ,  G02F1/1333 ,  G02F1/1343 ,  G06F3/044 ,  G02F1/133 ,  G02F1/1335

CPC classification number: G06F3/0412 ,  G02F1/13338 ,  G02F1/134309 ,  G06F3/0445 ,  G06F3/0446 ,  G02F1/13306 ,  G02F1/133514 ,  G02F1/133528

Abstract: A display device including a substrate, a plurality of pixel electrodes arranged in a form of a matrix in a plane parallel with the substrate, a display functional layer exerting an image display function on a basis of an image signal supplied to the plurality of pixel electrodes, a driving electrode opposed to the plurality of pixel electrodes, and a plurality of detecting electrodes arranged in a form of a plane opposed to the driving electrode, separated and arranged at a pitch of a natural number multiple of an arrangement pitch of the pixel electrodes in one direction in the arrangement plane, and each capacitively coupled with the driving electrode.

公开(公告)号：US10649563B2

公开(公告)日：2020-05-12

申请号：US15698232

申请日：2017-09-07

Applicant: Japan Display Inc.

Inventor： Koji Ishizaki ,  Kouji Noguchi

IPC: G06F3/041 ,  G02F1/1333 ,  G02F1/1343 ,  G06F3/044 ,  G02F1/133 ,  G02F1/1335

Abstract: A display device including a substrate, a plurality of pixel electrodes arranged in a form of a matrix in a plane parallel with the substrate, a display functional layer exerting an image display function on a basis of an image signal supplied to the plurality of pixel electrodes, a driving electrode opposed to the plurality of pixel electrodes, and a plurality of detecting electrodes arranged in a form of a plane opposed to the driving electrode, separated and arranged at a pitch of a natural number multiple of an arrangement pitch of the pixel electrodes in one direction in the arrangement plane, and each capacitively coupled with the driving electrode.

公开(公告)号：US09946400B2

公开(公告)日：2018-04-17

申请号：US15452363

申请日：2017-03-07

Applicant: Japan Display Inc.

Inventor： Koji Ishizaki ,  Kouji Noguchi ,  Takayuki Nakanishi ,  Yasuyuki Teranishi ,  Takeya Takeuchi

IPC: G06F3/041 ,  G09G3/36 ,  G06F3/044 ,  G06F3/045 ,  G06K9/00

CPC classification number: G06F3/0416 ,  G06F3/0412 ,  G06F3/044 ,  G06F3/045 ,  G06F2203/04101 ,  G06F2203/04112 ,  G06K9/0051 ,  G09G3/36 ,  G09G3/3607 ,  G09G3/3614 ,  G09G3/3655 ,  G09G3/3659 ,  G09G3/3696 ,  G09G2310/0248 ,  G09G2310/0251 ,  G09G2310/0262 ,  G09G2320/0204 ,  G09G2320/0209 ,  G09G2320/0219 ,  G09G2320/029

Abstract: A display device includes: a display functional layer that can change display for each pixel in accordance with an application voltage; a plurality of driving electrodes separately disposed in one direction; a plurality of pixel signal lines to which pixel signals used for applying the application voltage to the display functional layer in accordance with an electric potential difference from the display reference electric potential are applied; a plurality of detection electrodes that are separately disposed in a direction other than the one direction, are coupled with the driving electrodes as electrostatic capacitance, generate detection electric potentials in response to the detection driving signal, and change the detection electric potential in accordance with approach of a detection target object; and a pixel signal control unit that controls the pixel signals so as to include pixel signals having different polarities during the display period.