WO2019136642A1 - Procédé de gestion d'anomalie d'électrode, dispositif, écran tactile et terminal électronique - Google Patents

Procédé de gestion d'anomalie d'électrode, dispositif, écran tactile et terminal électronique Download PDF

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Publication number
WO2019136642A1
WO2019136642A1 PCT/CN2018/072133 CN2018072133W WO2019136642A1 WO 2019136642 A1 WO2019136642 A1 WO 2019136642A1 CN 2018072133 W CN2018072133 W CN 2018072133W WO 2019136642 A1 WO2019136642 A1 WO 2019136642A1
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WO
WIPO (PCT)
Prior art keywords
electrode
normal
adjacent
capacitance value
node
Prior art date
Application number
PCT/CN2018/072133
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English (en)
Chinese (zh)
Inventor
毛栋良
康为
Original Assignee
深圳市汇顶科技股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳市汇顶科技股份有限公司 filed Critical 深圳市汇顶科技股份有限公司
Priority to PCT/CN2018/072133 priority Critical patent/WO2019136642A1/fr
Priority to CN201880000025.8A priority patent/CN108369472B/zh
Publication of WO2019136642A1 publication Critical patent/WO2019136642A1/fr

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G06F3/0418—Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment

Definitions

  • the embodiments of the present invention relate to the field of touch technologies, and in particular, to an electrode abnormality processing method and device for a touch screen, a touch screen, and an electronic terminal.
  • a touch screen includes: a touch controller and a touch sensor, the touch controller and the touch sensor being electrically connected; wherein the touch sensor is configured to collect a touch screen a capacitance value of the upper capacitor node; the touch controller is configured to acquire a capacitance value collected by the touch sensor, and perform an operation corresponding to the electrode abnormality processing method according to the first aspect according to the obtained capacitance value.
  • the capacitance in the disconnecting electrode involved in the touch operation is performed through the capacitor node on the normal electrode adjacent to the disconnecting electrode.
  • the node performs capacitance compensation.
  • the touch position generally involves a plurality of adjacent electrodes, and the difference in capacitance values between corresponding capacitor nodes on the plurality of adjacent electrodes should be within a small range, thus, use and open circuit
  • the capacitance value of the capacitor node on the normal electrode adjacent to the electrode can effectively compensate the capacitance of the corresponding capacitor node on the disconnecting electrode, thereby avoiding touch screen failures such as disconnection, disconnection, and elimination due to electrode disconnection.
  • the capacitor node is formed by the intersection of the driving electrode and the sensing electrode.
  • all the driving electrodes are wired in one direction such as a horizontal direction
  • all the sensing electrodes are wired in one direction such as a vertical direction.
  • a capacitive node operated by a touch operation usually includes a plurality of, and it is assumed that a capacitive node operated by a touch operation includes nine, which are formed by the intersection of the 2-4th driving electrode and the 2-4th sensing electrode, respectively, for convenience of description.
  • Step S106 Capacitance compensation is performed on the circuit breaker node according to the capacitance value of the normal capacitor node.
  • Step S202 determining a disconnect electrode.
  • Step S206 determining that the target capacitance node of the touch screen operated by the touch operation includes an open circuit capacitance node.
  • the electrode that is disconnected is the sensing electrode and the adjacent normal sensing electrodes are present on both sides of the sensing electrode, then for each of the two sides of the sensing electrode, the first one adjacent to the sensing electrode A normal sensing electrode begins, and at least one normal sensing electrode is determined to be a normal sensing electrode adjacent to the sensing electrode where the disconnection occurs.
  • the open circuit sensing electrode is located in the middle of the capacitive sensor, and the normal sensing electrodes are adjacent to both sides, and one or more adjacent normal sensing electrodes are taken on each side for reference, and at least two normal sensing electrodes are used.
  • each of the open circuit capacitor nodes there is a corresponding normal capacitor node, such as a capacitor node on the open circuit sensing electrode, and the horizontal direction has corresponding normal sensing electrodes on both sides. Capacitor node on.
  • the touch position can be accurately determined to provide a more accurate reference for capacitance compensation. .
  • the smaller the ratio the more consistent the states of adjacent normal capacitor nodes (such as being touched or not touched); the larger the ratio, the more inconsistent the state of adjacent normal capacitor nodes (eg, one side is touched one) The side is not touched).
  • the determination of the breaking electrode is as described in the above step S202.
  • the difference between the stable reference value of the normal capacitor node and the current capacitance value is used as the capacitance value of the normal capacitor node.
  • the capacitor No. 01 ie, the open circuit capacitor node of the No. 00 driving electrode in FIG. 3
  • the difference between the No. 01 capacitor node of the No. 01 driving electrode and the No. 02 driving electrode 01 are obtained.
  • the difference is the difference between the stable reference value of the capacitor node and the current capacitance value.
  • the capacitor node at the same horizontal position as the breaking capacitor node is a normal capacitor node corresponding to the breaking capacitor node.
  • Max MAX (A1, A2)
  • Min MIN (A1, A2).
  • the normal electrode determining module 4042 includes:
  • the fourth determining module 40428 is configured to: if the electrode that is broken is an inductive electrode and the adjacent normal sensing electrode exists on both sides of the sensing electrode, for each side of the sensing electrode The first normal sensing electrode adjacent to the sensing electrode begins, and the at least one normal sensing electrode is determined as a normal sensing electrode adjacent to the sensing electrode where the disconnection occurs.
  • the determined normal driving electrodes adjacent to the driving electrode that is broken are two normal driving electrodes; and/or the determined normal sensing electrodes adjacent to the sensing electrodes that are broken are two normal sensing electrodes.
  • the compensation module 406 is configured to determine whether a ratio between the maximum capacitance value and the minimum capacitance value is greater than a set threshold; if not greater, the current open circuit capacitance node is capacitively compensated according to the ratio; if greater, the The ratio is set to the set threshold, and the current open capacitor node is capacitively compensated according to the set ratio.
  • the compensation module 406 is configured to perform capacitance compensation on the current open circuit capacitor node according to the ratio, the maximum capacitance value, and the minimum capacitance value if there are adjacent normal electrodes on both sides of the electrode where the disconnection occurs.
  • the touch sensor 504 includes a plurality of driving electrodes 5042 and a plurality of sensing electrodes 5044 vertically distributed with the driving electrodes 5042.
  • the driving electrode 5042 is disposed in the horizontal direction (lateral direction), and the sensing electrode 5044 is disposed in the vertical direction (longitudinal direction), wherein the node at which the driving electrode 5042 and the sensing electrode 5044 meet forms a capacitance node.
  • the touch controller 502 inputs the driving signal of the preset frequency to the driving electrode 5042 according to a certain driving manner. After the driving signal passes through the capacitive sensor, the sensing signal is formed by the sensing electrode 5044 and returned to the touch controller 502.
  • the touch controller 502 converts the sensing signal into a digital signal through an analog-to-digital converter (ADC) disposed inside thereof, and parses the digital signal to obtain a capacitance value corresponding to each capacitance node.
  • ADC analog-to-digital converter
  • the capacitor node in the disconnecting electrode involved in the touch operation is capacitively compensated by the capacitor node on the normal electrode adjacent to the disconnecting electrode.
  • the touch position generally involves a plurality of adjacent electrodes, and the difference in capacitance values between corresponding capacitor nodes on the plurality of adjacent electrodes should be within a small range, thus, use and open circuit
  • the capacitance value of the capacitor node on the normal electrode adjacent to the electrode can effectively compensate the capacitance of the corresponding capacitor node on the disconnecting electrode, thereby avoiding touch screen failures such as disconnection, disconnection, and elimination due to electrode disconnection.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Position Input By Displaying (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Abstract

Selon un mode de réalisation, la présente invention concerne un procédé de gestion d'anomalie d'électrode, un dispositif, un écran tactile et un terminal électronique. Le procédé de gestion d'anomalie d'électrode comprend les étapes consistant à : déterminer un nœud capacitif de circuit ouvert correspondant à une électrode de circuit ouvert dans le nœud capacitif cible d'un écran tactile actionné par toucher, l'électrode de circuit ouvert comprenant une électrode de circuit ouvert dans un capteur capacitif de l'écran tactile ; déterminer une électrode normale adjacente à l'électrode de circuit ouvert, et acquérir une valeur de capacité d'un nœud capacitif normal, adjacent au nœud capacitif de circuit ouvert, sur l'électrode normale déterminée ; réaliser une compensation de capacité sur le nœud capacitif de circuit ouvert en fonction de la valeur de capacité du nœud capacitif normal. Le mode de réalisation de la présente invention peut réaliser efficacement une compensation de capacité sur un nœud capacitif correspondant sur une électrode de circuit ouvert, ce qui permet d'éviter des défaillances d'écran tactile telles que la division de pixels, la déconnexion et l'élimination de pixels provoquées par la déconnexion d'une électrode.
PCT/CN2018/072133 2018-01-10 2018-01-10 Procédé de gestion d'anomalie d'électrode, dispositif, écran tactile et terminal électronique WO2019136642A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2018/072133 WO2019136642A1 (fr) 2018-01-10 2018-01-10 Procédé de gestion d'anomalie d'électrode, dispositif, écran tactile et terminal électronique
CN201880000025.8A CN108369472B (zh) 2018-01-10 2018-01-10 电极异常处理方法、装置、触摸屏及电子终端

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2018/072133 WO2019136642A1 (fr) 2018-01-10 2018-01-10 Procédé de gestion d'anomalie d'électrode, dispositif, écran tactile et terminal électronique

Publications (1)

Publication Number Publication Date
WO2019136642A1 true WO2019136642A1 (fr) 2019-07-18

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WO (1) WO2019136642A1 (fr)

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CN111782087A (zh) * 2020-08-04 2020-10-16 Oppo广东移动通信有限公司 触控组件及显示装置、电子设备
CN112684935B (zh) * 2020-12-30 2024-03-19 深圳市康冠商用科技有限公司 一种电容触控纠错方法、装置、计算机设备及存储介质
CN113741741B (zh) * 2021-09-17 2024-03-15 京东方科技集团股份有限公司 自容式触摸屏的断线位置检测方法、装置、设备和介质

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CN107407985A (zh) * 2015-02-27 2017-11-28 夏普株式会社 触控面板控制基板的检查方法以及触控面板控制器
CN107450786A (zh) * 2017-08-07 2017-12-08 京东方科技集团股份有限公司 触控控制器、包括其的触控面板以及检测电路故障的方法

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KR100393044B1 (ko) * 2000-11-14 2003-07-31 삼성에스디아이 주식회사 배선 전극 단선 방지용 보상 전극 패턴을 채용한 터치 패널
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CN104459400B (zh) * 2014-12-08 2018-07-17 深圳市华星光电技术有限公司 用于自容式触摸屏的检测电路和检测方法
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CN104020916A (zh) * 2014-06-16 2014-09-03 上海中航光电子有限公司 电容触摸屏的驱动检测方法、装置及电子设备
CN107407985A (zh) * 2015-02-27 2017-11-28 夏普株式会社 触控面板控制基板的检查方法以及触控面板控制器
CN107450786A (zh) * 2017-08-07 2017-12-08 京东方科技集团股份有限公司 触控控制器、包括其的触控面板以及检测电路故障的方法

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CN108369472B (zh) 2021-07-20

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