公开(公告)号：US20240220041A1

公开(公告)日：2024-07-04

申请号：US18604859

申请日：2024-03-14

Applicant: Japan Display Inc.

Inventor： Koji Ishizaki ,  Kouji Noguchi

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

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

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：US11599214B2

公开(公告)日：2023-03-07

申请号：US17348361

申请日：2021-06-15

Applicant: Japan Display Inc.

Inventor： Koji Ishizaki ,  Kouji Noguchi

IPC: G09G3/32 ,  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：US11009733B2

公开(公告)日：2021-05-18

申请号：US16423980

申请日：2019-05-28

Applicant: Japan Display Inc.

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

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

Abstract: A detection device includes a plurality of drive electrodes, wherein: in a first mode, a first drive electrode block including a first number of the drive electrodes are supplied with a first drive signal; in a second mode, a second drive electrode block including a second number of the drive electrodes are supplied with a second drive signal; and the first number is different from the second number.

公开(公告)号：US10310684B2

公开(公告)日：2019-06-04

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 ,  G06F3/044 ,  G02F1/1333 ,  G09G3/36

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：US20170177157A1

公开(公告)日：2017-06-22

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

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：US11960673B2

公开(公告)日：2024-04-16

申请号：US18164753

申请日：2023-02-06

Applicant: Japan Display Inc.

Inventor： Koji Ishizaki ,  Kouji Noguchi

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

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

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：US11068097B2

公开(公告)日：2021-07-20

申请号：US16839513

申请日：2020-04-03

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：US09606667B2

公开(公告)日：2017-03-28

申请号：US14702279

申请日：2015-05-01

Applicant: JAPAN DISPLAY, INC.

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

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

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：US20150286337A1

公开(公告)日：2015-10-08

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

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.

Abstract translation: 显示装置包括：可根据应用电压改变每个像素的显示的显示功能层; 分别设置在一个方向上的多个驱动电极; 施加用于根据与显示基准电位的电位差将施加电压施加到显示功能层的像素信号的多个像素信号线; 在除了一个方向以外的方向上分开设置的多个检测电极与驱动电极耦合作为静电电容，根据检测驱动信号产生检测电位，并根据接近方式改变检测电位 的检测对象; 以及像素信号控制单元，其在显示周期期间控制像素信号以包括具有不同极性的像素信号。

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.