公开(公告)号：US10606431B2

公开(公告)日：2020-03-31

申请号：US16518645

申请日：2019-07-22

Applicant: Japan Display Inc.

Inventor： Takeya Takeuchi ,  Hiroshi Mizuhashi ,  Tadayoshi Katsuta ,  Takehiro Shima

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

Abstract: A display device with a touch sensor includes: plural display pixel electrodes; a common electrode arranged opposite to the display pixel electrodes; a display function layer having an image display function; a display control circuit performing image display control so as to fulfill the display function of the display function layer by applying a voltage for display between the display pixel electrodes and the common electrode based on an image signal; and a touch detection electrode provided opposite to the common electrode and forming capacitance between the touch detection electrode and the common electrode, wherein a drive voltage for display applied to the common electrode by the display control circuit is used as a drive signal for the touch sensor, and a gate potential of TFT circuits included in the display pixel electrodes is increased during a period when the drive signal for the touch sensor is applied.

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.

公开(公告)号：US20170315660A1

公开(公告)日：2017-11-02

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: G06F3/041 ,  G02F1/1333 ,  G06F3/044 ,  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：US20170242546A1

公开(公告)日：2017-08-24

申请号：US15590384

申请日：2017-05-09

Applicant: Japan Display Inc.

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

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0418 ,  G06F1/1643 ,  G06F3/0412 ,  G06F3/0416 ,  G06F3/044

Abstract: A touch sensor includes a sensor electrode having an electrostatic capacitance for touch detection, and a touch detection circuit detecting a contact or proximity position of an object on the basis of a detection signal obtained from the sensor electrode by applying a touch sensor drive signal to the sensor electrode. The sensor electrode is split into plural stripe-like electrode patterns. Applying the touch sensor drive signal to part of the electrode patterns forms a drive line at that time. The touch detection circuit performs a detection on the basis of a first detection signal obtained from a first drive line formed in a first period, and a second detection signal obtained from a second drive line formed in a second period.

公开(公告)号：US20170185221A1

公开(公告)日：2017-06-29

申请号：US15459845

申请日：2017-03-15

Applicant: Japan Display Inc.

Inventor： Takeya Takeuchi ,  Hiroshi Mizuhashi ,  Tadayoshi Katsuta ,  Takehiro Shima

IPC: G06F3/041 ,  G02F1/1362 ,  G02F1/1335 ,  G02F1/1368 ,  G06F3/044 ,  G02F1/1333

Abstract: Disclosed herein is a display device with a touch sensor, including: a plurality of display pixel electrodes; a common electrode configured to be provided opposed to the display pixel electrodes; a display function layer configured to have an image display function; a display control circuit configured to apply a display voltage between the display pixel electrodes and the common electrode based on an image signal and carry out image display control so that the display function of the display function layer be exerted; and a touch detection electrode configured to be provided opposed to the common electrode and form capacitance between the touch detection electrode and the common electrode.

公开(公告)号：US20160357332A1

公开(公告)日：2016-12-08

申请号：US15244898

申请日：2016-08-23

Applicant: Japan Display Inc.

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

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

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.

Abstract translation: 一种信息输入装置，包括触摸面板，其构造成设置有检测感测对象靠近感测表面的位置的触摸传感器。 在该信息输入装置中，触摸传感器具有扫描电极和检测电极，该扫描电极和检测电极与介电物质的介质的扫描电极相对，并且是如果感测对象靠近 检测电极。 此外，在与扫描电极相对的检测电极的表面上形成狭缝。

公开(公告)号：US09454279B2

公开(公告)日：2016-09-27

申请号：US14743547

申请日：2015-06-18

Applicant: Japan Display Inc.

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

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

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.

Abstract translation: 一种信息输入装置，包括触摸面板，其构造成设置有检测感测对象靠近感测表面的位置的触摸传感器。 在该信息输入装置中，触摸传感器具有扫描电极和检测电极，该扫描电极和检测电极与介电物质的介质的扫描电极相对，并且是如果感测对象靠近 检测电极。 此外，在与扫描电极相对的检测电极的表面上形成狭缝。

公开(公告)号：US11847287B2

公开(公告)日：2023-12-19

申请号：US18173879

申请日：2023-02-24

Applicant: Japan Display Inc.

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

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

CPC classification number: G06F3/0446 ,  G06F3/03547 ,  G06F3/047 ,  G06F3/0412 ,  G06F3/0418 ,  G06F3/0445 ,  G09G3/2983 ,  G09G3/2986 ,  G09G3/3696 ,  H01J11/12 ,  G02F1/134363 ,  G02F1/134372 ,  G06F3/0448 ,  G09G2330/06

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. 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：US11630544B2

公开(公告)日：2023-04-18

申请号：US17339203

申请日：2021-06-04

Applicant: Japan Display Inc.

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

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