公开(公告)号：US11029794B2

公开(公告)日：2021-06-08

申请号：US16166810

申请日：2018-10-22

Applicant: Japan Display Inc.

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

IPC: G06F3/044 ,  G09G3/298 ,  H01J11/12 ,  G06F3/047 ,  G09G3/36 ,  G06F3/0354 ,  G06F3/041 ,  G02F1/1343

Abstract: A touch panel, a display panel, and a display unit achieving prevention of erroneous detection caused by external noise. The touch panel includes: a plurality of detection scan electrodes extending in a first direction and a plurality of detection electrodes facing the plurality of detection scan electrodes and extending in a second direction which intersects the first direction. A ratio of fringe capacitance to total capacitance between one or more selected detection scan electrodes and a first detection electrode is different from a ratio of fringe capacitance to total capacitance between the one or more selected detection scan electrodes and a second detection electrode. The one or more selected detection scan electrodes are selected, in a desired unit, from the plurality of detection scan electrodes, to be supplied with a selection pulse, and each of the first and the second detection electrodes is selected from the plurality of detection electrodes.

公开(公告)号：US10817108B2

公开(公告)日：2020-10-27

申请号：US16295021

申请日：2019-03-07

Applicant: Japan Display Inc.

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

IPC: G06F3/041 ,  G02F1/1333 ,  G06F3/044 ,  G09G5/18 ,  G02F1/1343 ,  G02F1/1335 ,  G02F1/1368

Abstract: An information input device including a touch panel configured to be provided with a touch sensor that detects a position at which a sensing object is brought close to a sensing surface. In this information input device, the touch sensor has a scanning electrode and a detecting electrode that is opposed to the scanning electrode with the intermediary of a dielectric substance, and is a capacitive sensor whose electrostatic capacitance changes if the sensing object is brought close to the detecting electrode. Furthermore, a slit is formed in a surface of the detecting electrode opposed to the scanning electrode.

公开(公告)号：US10564491B2

公开(公告)日：2020-02-18

申请号：US16152258

申请日：2018-10-04

Applicant: Japan Display Inc.

Inventor： Takayuki Nakanishi ,  Takeya Takeuchi

IPC: G02F1/1345 ,  G02F1/1343 ,  G02F1/1362 ,  G02F1/1337 ,  G09G3/36 ,  G09G3/20

Abstract: A display device includes a plurality of signal lines that are so juxtaposed as to be extended along one direction, a plurality of common drive electrodes that are so juxtaposed as to be extended along the signal lines, and a plurality of display elements that are each connected to a respective one of the plurality of signal lines and are each connected also to the common drive electrode that makes a pair with the connected signal line. Scan driving of the plurality of display elements is performed in the direction of the signal lines.

公开(公告)号：US20190204984A1

公开(公告)日：2019-07-04

申请号：US16295021

申请日：2019-03-07

Applicant: Japan Display Inc.

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

IPC: G06F3/041 ,  G02F1/1343 ,  G09G5/18 ,  G02F1/1333 ,  G06F3/044

Abstract: An information input device including a touch panel configured to be provided with a touch sensor that detects a position at which a sensing object is brought close to a sensing surface. In this information input device, the touch sensor has a scanning electrode and a detecting electrode that is opposed to the scanning electrode with the intermediary of a dielectric substance, and is a capacitive sensor whose electrostatic capacitance changes if the sensing object is brought close to the detecting electrode. Furthermore, a slit is formed in a surface of the detecting electrode opposed to the scanning electrode.

公开(公告)号：US10082923B2

公开(公告)日：2018-09-25

申请号：US15895756

申请日：2018-02-13

Applicant: Japan Display Inc.

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

IPC: G06F3/044 ,  G06F3/041

CPC classification number: G06F3/044 ,  G06F3/0412

Abstract: A capacitive type touch sensor appropriately detecting an object, and a display and an electronic device including such a touch sensor are provided. The display including a drive electrode receiving a drive signal, a detection electrode located adjacent to the drive electrode, and a dielectric material located between the drive electrode and the detection electrode defining a capacitive area. The detection electrode generates an output signal driven by the drive signal, a detection circuit electrically connected to the detection electrode sensing the output signal. A switch element is electrically connected between the detection electrode and a voltage source providing a predefined voltage level and having a first state and a second state. A display control circuit controls a voltage applied between a display common voltage electrode and a pixel electrode to display an image based on an image signal, and the display common voltage electrode serves as the drive electrode.

公开(公告)号：US10025425B2

公开(公告)日：2018-07-17

申请号：US15478919

申请日：2017-04-04

Applicant: Japan Display Inc.

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

IPC: G06F3/041 ,  G06F3/044 ,  G02F1/1343 ,  G02F1/1333 ,  G02F1/1368

CPC classification number: G06F3/0416 ,  G02F1/13338 ,  G02F1/133528 ,  G02F1/134309 ,  G02F1/13439 ,  G02F1/1368 ,  G02F2201/121 ,  G02F2201/123 ,  G02F2203/01 ,  G06F3/0412 ,  G06F3/044 ,  G06F2203/04101 ,  G06F2203/04103 ,  G06F2203/04108 ,  G06F2203/04111 ,  G09G5/18 ,  G09G2300/0426

Abstract: An information input device including a touch panel configured to be provided with a touch sensor that detects a position at which a sensing object is brought close to a sensing surface. In this information input device, the touch sensor has a scanning electrode and a detecting electrode that is opposed to the scanning electrode with the intermediary of a dielectric substance, and is a capacitive sensor whose electrostatic capacitance changes if the sensing object is brought close to the detecting electrode. Furthermore, a slit is formed in a surface of the detecting electrode opposed to the scanning 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：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：US09652075B2

公开(公告)日：2017-05-16

申请号：US15244898

申请日：2016-08-23

Applicant: Japan Display Inc.

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

IPC: G06F3/041 ,  G02F1/1333 ,  G06F3/044 ,  G09G5/18 ,  G02F1/1335 ,  G02F1/1368

CPC classification number: G06F3/0416 ,  G02F1/13338 ,  G02F1/133528 ,  G02F1/134309 ,  G02F1/13439 ,  G02F1/1368 ,  G02F2201/121 ,  G02F2201/123 ,  G02F2203/01 ,  G06F3/0412 ,  G06F3/044 ,  G06F2203/04101 ,  G06F2203/04103 ,  G06F2203/04108 ,  G06F2203/04111 ,  G09G5/18 ,  G09G2300/0426

Abstract: An information input device including a touch panel configured to be provided with a touch sensor that detects a position at which a sensing object is brought close to a sensing surface. In this information input device, the touch sensor has a scanning electrode and a detecting electrode that is opposed to the scanning electrode with the intermediary of a dielectric substance, and is a capacitive sensor whose electrostatic capacitance changes if the sensing object is brought close to the detecting electrode. Furthermore, a slit is formed in a surface of the detecting electrode opposed to the scanning electrode.