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WO2018192453A1 - 触控驱动方法及装置、切换方法、触控装置以及电子设备 - Google Patents

触控驱动方法及装置、切换方法、触控装置以及电子设备 Download PDF

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Publication number
WO2018192453A1
WO2018192453A1 PCT/CN2018/083235 CN2018083235W WO2018192453A1 WO 2018192453 A1 WO2018192453 A1 WO 2018192453A1 CN 2018083235 W CN2018083235 W CN 2018083235W WO 2018192453 A1 WO2018192453 A1 WO 2018192453A1
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WO
WIPO (PCT)
Prior art keywords
touch
detection signal
module
driving
touch detection
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2018/083235
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English (en)
French (fr)
Inventor
韩文超
孙伟
时凌云
陈东
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BOE Technology Group Co Ltd
Beijing BOE Optoelectronics Technology Co Ltd
Original Assignee
BOE Technology Group Co Ltd
Beijing BOE Optoelectronics Technology Co Ltd
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 BOE Technology Group Co Ltd, Beijing BOE Optoelectronics Technology Co Ltd filed Critical BOE Technology Group Co Ltd
Priority to US16/328,841 priority Critical patent/US11314354B2/en
Publication of WO2018192453A1 publication Critical patent/WO2018192453A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06F3/04166—Details of scanning methods, e.g. sampling time, grouping of sub areas or time sharing with display driving
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06F3/0412—Digitisers structurally integrated in a display
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • G06F1/3206—Monitoring of events, devices or parameters that trigger a change in power modality
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • G06F1/3206—Monitoring of events, devices or parameters that trigger a change in power modality
    • G06F1/3215—Monitoring of peripheral devices
    • G06F1/3218—Monitoring of peripheral devices of display devices
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • G06F1/3234—Power saving characterised by the action undertaken
    • G06F1/325—Power saving in peripheral device
    • G06F1/3262—Power saving in digitizer or tablet
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • G06F1/3234—Power saving characterised by the action undertaken
    • G06F1/325—Power saving in peripheral device
    • G06F1/3265—Power saving in display device
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/50—Reducing energy consumption in communication networks in wire-line communication networks, e.g. low power modes or reduced link rate

Definitions

  • Embodiments of the present disclosure relate to a touch driving method, a touch driving device, a working mode switching method, a touch device, and an electronic device.
  • the touch technology as an input method is not only convenient compared to the input mode of a keyboard or a mouse, but also has an intuitive sense of operation, so the touch input method has also become a very popular human-computer interaction method.
  • the touch circuit is generally driven by a time-division driving method.
  • one frame time is divided into a display time period and a touch time period, and a common voltage signal is supplied to the electrode layer during the display time period, and a touch drive signal is provided to the electrode layer during the touch time period;
  • the driving signal of the touch electrode is provided by the external touch driving chip through the transmitting electrode located in the sealing area.
  • Embodiments of the present disclosure provide a touch driving method, a touch driving device, a working mode switching method, a touch device, and an electronic device for reducing power consumption of an electronic device.
  • At least one embodiment of the present disclosure provides a touch driving method, including: controlling a driving module to output a first touch detection signal; and controlling a selection module connected to the driving module to simultaneously select the module
  • the connected n touch electrodes are input to the first touch detection signal output by the driving module, where n is an integer and n>1; detecting whether there is a touch input; if the touch input is detected And controlling the driving module to output a second touch detection signal, and controlling the selection module to sequentially input the second touch detection signal output by the driving module to the n touch electrodes.
  • the n touch electrodes connected to the same selection module are located in the same column and are respectively located in different rows.
  • the m selection modules are simultaneously controlled to input the first touch detection signals to the corresponding touch electrodes; and when the touch input is detected, the m selection modules are simultaneously controlled to sequentially The corresponding touch electrode inputs the second touch detection signal.
  • the length of time that the driving module outputs the first touch detection signal is a first time length
  • the length of time that the driving module outputs the second touch detection signal has a second time length
  • the first length of time is less than the second length of time
  • the detection signals are controlled, and the touch electrodes respectively input to the second touch detection signals by the selection module are different in the n time periods.
  • the voltage of the first touch detection signal is a first voltage
  • the driving module outputs the second touch of the second time length
  • the voltage of the second touch detection signal is a second voltage
  • the first voltage is smaller than the second voltage
  • the driving module is controlled to output the first touch detection signal
  • the selection module is controlled to simultaneously input the first touch detection signal to the n touch electrodes.
  • the touch driving method further includes: controlling, in a normal working mode, the driving module to output the second touch detection signal, and controlling the selecting module to sequentially correspond to n corresponding to the selecting module.
  • the touch electrode inputs the second touch detection signal output by the corresponding driving module.
  • the touch driving method further includes: controlling a normal working mode including a display mode and a touch display mode; wherein the displaying mode comprises controlling the driving module to output the first touch detection signal and controlling the selection module Simultaneously inputting the first touch detection signal to the n touch electrodes connected thereto; the touch display mode includes controlling the driving module to output the second touch detection signal and controlling the selection module in sequence And inputting, by the n touch electrodes corresponding to the selection module, the second touch detection signal output by the corresponding driving module.
  • At least one embodiment of the present disclosure provides a working mode switching method, including: inputting, in a first working mode, a first touch detection signal to n touch electrodes connected to a selection module, wherein , n is an integer and n>1; and switches to a second mode of operation different from the first mode of operation if a touch input is detected.
  • the selection module is controlled to sequentially input a second touch detection signal to the n touch electrodes.
  • At least one embodiment of the present disclosure provides a touch device including m driving modules, m selection modules, and a plurality of touch electrodes, and the m driving modules and the m selection modules are a corresponding connection; each of the selection modules includes n electrical connection paths, wherein the n electrical connection paths respectively correspond to n touch electrodes, and the n touch electrodes are located in the same column and are respectively located in different rows, wherein , m, n are both integers and are greater than 1.
  • At least one embodiment of the present disclosure further provides a touch driving device, including: a driving module; a selection module connected to the driving module; and a control unit configured to control the output of the driving module a touch detection signal, and controlling the selection module connected to the driving module to simultaneously input the first touch detection signal output by the corresponding driving module to the n touch electrodes connected to the selection module; a touch electrode; and a detecting unit configured to detect whether there is a touch input, wherein when the detecting unit detects that the touch input has a touch input, the control unit is further configured to control the drive module to output a second Touching the detection signal, and controlling the selection module to sequentially input the second touch detection signal output by the corresponding driving module to the n touch electrodes corresponding to the selection module.
  • the length of time that the driving module outputs the first touch detection signal is a first time length
  • the length of time that the driving module outputs the second touch detection signal has a second time length
  • the first length of time is less than the second length of time
  • control unit is configured to: divide the second time length into n time segments; and control the selection module to correspond to a touch electrode input connected to the selection module at each time period
  • the second touch detection signal outputted by the driving module is different, and the touch electrodes respectively inputting the second touch detection signals by the selection module in the n time periods are different.
  • control unit is configured to control a normal working mode including a display mode and a touch display mode, wherein in the display mode, the control unit is configured to control the driving module to output the first touch Detecting a signal and controlling the selection module to simultaneously input the first touch detection signal to the n touch electrodes connected thereto; in the touch display mode, the control unit is configured to control the driving The module outputs the second touch detection signal and controls the selection module to sequentially input the second touch detection signal output by the corresponding driving module to the n touch electrodes corresponding to the selection module.
  • control unit is further configured to control the driving module to output a second touch detection signal in a normal operation mode, and control the selection module to sequentially input to the n touch electrodes corresponding to the selection module.
  • the second touch detection signal output by the corresponding driving module.
  • the voltage of the first touch detection signal is a first voltage
  • the driving module outputs the second touch of the second time length
  • the voltage of the second touch detection signal is a second voltage
  • the first voltage is smaller than the second voltage
  • the driving module is a rectification feedback unit
  • the selection module is a data selector
  • At least one embodiment of the present disclosure provides an electronic device, including the touch device provided in any one of the third aspects, or the touch driving device according to any of the fourth aspects.
  • FIG. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure
  • FIG. 2 is a flow chart of steps of a touch driving method according to an embodiment of the present disclosure
  • FIG. 3 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure.
  • FIG. 4 is a third schematic structural diagram of an electronic device according to an embodiment of the present disclosure.
  • FIG. 5 is a second flowchart of steps of a touch driving method according to an embodiment of the present disclosure
  • FIG. 6A is a third flowchart of steps of a touch driving method according to an embodiment of the present disclosure.
  • FIG. 6B is a fourth flowchart of steps of the touch driving method according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic structural diagram of a touch driving device according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic structural diagram of a touch device according to an embodiment of the present disclosure.
  • the portable electronic device further develops a gesture wake-up function, that is, when the portable electronic device is in the standby mode, the user can switch the portable electronic device to the normal working mode through the touch input of a certain gesture.
  • the inventor of the present application noticed in the study that in order to detect the touch operation input by the user in the standby mode of the electronic device, the electronic device needs to output a touch driving signal in the standby mode to detect whether the user has touch input. And this will result in greater power consumption.
  • the embodiments of the present disclosure provide a touch driving method, a touch driving device, a working mode switching method, a touch device, and an electronic device, and the overall design principle of the embodiment of the present disclosure is that the electronic device is in the on state and is in the first state.
  • the touch driving module is controlled to simultaneously scan a plurality of touch electrodes in the electronic device, and when detecting the touch input (ie, when the electronic device is detected to be touched), immediately switch to the second working mode, Since the touch electrodes are simultaneously scanned when the electronic device is in the first working mode, the length of the touch scan time is shortened when the electronic device is in the first working mode, and the power consumption of the touch circuit in the first working mode is also reduced. small.
  • the touch electrodes in the electronic device can adopt the same scanning mode, that is, the touch electrodes are simultaneously scanned (hereinafter referred to as the touch mode is the first a touch mode); or, in the first working mode and the second working mode of the electronic device, the touch electrodes in the electronic device may adopt different scanning modes, for example, in the first working mode, the touch electrodes are simultaneously Scanning (ie, the first touch mode) and in the second mode of operation, the touch electrodes are time-divisionally scanned, that is, sequentially scanning the respective touch electrodes (hereinafter referred to as the second touch mode).
  • the first touch mode since the plurality of touch electrodes are simultaneously scanned, it is possible to determine whether there is a touch input; in the second touch mode, since the plurality of touch electrodes are time-divisionally scanned, it can be determined.
  • the abscissa and the ordinate of the touch position are taken out, thereby implementing a touch operation.
  • the first working mode is the standby mode
  • the second working mode is the normal working mode (ie, the electronic device is in the power-on state and is in the non-standby mode).
  • the embodiment of the present disclosure can shorten the length of the touch scan time in the standby mode, thereby reducing the power consumption generated by the touch circuit in the standby mode.
  • the normal working mode includes a display mode using the first touch mode and a touch display mode using the second touch mode.
  • the first working mode is the display mode in the normal working mode
  • the second working mode is the touch display mode in the normal working mode.
  • the embodiment of the present disclosure can reduce the power consumption of the touch control circuit in the display mode by making the first operation mode the display mode.
  • the first mode of operation is the standby mode and the second mode of operation is the display mode of the normal mode of operation.
  • the embodiment of the present disclosure can shorten the length of the touch scan time in the standby mode, thereby reducing the power consumption generated by the touch circuit in the standby mode.
  • At least one embodiment of the present disclosure provides a touch driving method, including: controlling a driving module to output a first touch detection signal; and controlling a selection module connected to the driving module to simultaneously connect n with the selection module (n is an integer and n>1) the first touch detection signal output by the touch electrode input driving module; detecting whether the touch input has a touch input; and detecting the touch input, the control driving module outputs the second touch detection signal, and The control selection module sequentially inputs the second touch detection signals output by the driving module to the corresponding n touch electrodes.
  • the touch driving method provided by the embodiment of the present disclosure is used to switch from the first touch mode to the second touch mode.
  • each of the m driving modules is controlled to output a first touch detection signal; and m connected to the m driving modules are controlled one by one.
  • Each selection module in the selection module simultaneously inputs a first touch detection signal output by the corresponding driving module to the n touch electrodes connected to the selection module, where m is an integer and m>1; detecting whether there is a touch input
  • each of the m drive modules is controlled to output a second touch detection signal, and each selection module is controlled to sequentially (ie, in order) to its corresponding n
  • the touch electrode inputs a second touch detection signal output by the corresponding driving module.
  • the touch electrodes are arranged in m columns and n rows.
  • the n touch electrodes connected to the same selection module are located in the same column and are respectively located in different rows (ie, one of the n touch electrodes is disposed in each row).
  • the m selection modules are simultaneously controlled to input the first touch detection signals to the corresponding touch electrodes, that is, the m selection modules simultaneously correspond to each other.
  • the n touch electrodes input the first touch detection signals, and each touch electrode receives only one first touch detection signal input by the selection module; and, when detecting the touch input, simultaneously controls m
  • the selection module sequentially inputs the second touch detection signals to the corresponding touch electrodes, that is, each selection module inputs only the second touch detection signals to one touch electrode at the same time, and the m selection modules simultaneously The corresponding touch electrode inputs a second touch detection signal.
  • the length of time that the driving module outputs the first touch detection signal is the first time length
  • the length of time that the driving module outputs the second touch detection signal is the second time length, where the first time length is less than the second time Length, the first time length is less than the second time length.
  • the selection module applies (rather than simultaneously applies) the second touch detection signal to the corresponding n touch electrodes, so the second time length is that the n touch electrodes are The sum of the lengths of time during which the second touch detection signal is applied.
  • the time length of the second touch detection signal applied by each of the n touch electrodes is equal to the first time length
  • the second time length is n times the first time length.
  • An embodiment of the present disclosure provides a touch driving method for performing touch driving on an electronic device.
  • the electronic device includes: m driving modules 11, m selection modules 12, and a plurality of touch electrodes 13; m driving modules 11 are connected to the m selection modules 12 one by one, that is, each The driving module 11 is connected to one selection module 12, and each selection module 12 is connected to one driving module 11; each selection module 12 corresponds to n (for example, n is greater than or equal to 2) touch electrodes 13. For example, each touch electrode 13 corresponds to only one selection module 12.
  • each of the selection modules 12 includes n electrical connection paths 120 (eg, switches), and the n electrical connection paths are in one-to-one correspondence with the n touch electrodes 13 , and are electrically connected to each of the electrical connection paths 120 (FIG. 1).
  • the electrical connection path 120 electrically connects the selection module 12 to the touch electrode 13 corresponding to the electrical connection path 120.
  • the touch electrodes 13 in the embodiments of the present disclosure are arranged in a matrix, and the number of touch electrodes is m*n.
  • the driving module 11 in the embodiment of the present disclosure may be a rectification feedback unit (English name: Active Front End, abbreviation: AFE); the selection module 12 may be a data selector (English name: Multiplexer, abbreviated as: Mux).
  • the common electrode layer included in the liquid crystal display panel in the liquid crystal display can be divided and multiplexed into a touch electrode.
  • a common voltage is input to the common electrode layer of the liquid crystal display panel; when the liquid crystal display performs touch detection, the touch driving signal is input to the common electrode layer multiplexed as the driving electrode.
  • the cathode layer of the OLED can also be divided and multiplexed into a touch electrode and passed under the cathode layer.
  • the metal layer of the field effect transistor for example, Thin Film Transistor, TFT for short
  • TFT Thin Film Transistor
  • the above-mentioned electronic device can also be separately formed to form a touch electrode.
  • separately forming the touch electrode increases the manufacturing process of the electronic device and the thickness of the electronic device. Therefore, it is preferable to divide and multiplex the existing electrode into a touch electrode.
  • the touch driving method provided by the embodiment of the present disclosure includes the following steps S21 to S24.
  • step S21 if the electronic device is in the first operation mode (e.g., the standby mode or the display mode in the normal operation mode), step S22 is performed.
  • the first operation mode e.g., the standby mode or the display mode in the normal operation mode
  • S22 Control each driving module to output a first touch detection signal of a first time length; and control each selection module to simultaneously input a first touch detection signal output by the corresponding driving module to the n touch electrodes connected to the selection module.
  • step S22 the selection module electrically connects each of the n touch electrodes corresponding thereto.
  • step S22 the electronic device adopts the first touch mode.
  • the selection module 12 is simultaneously turned on with the three touch electrodes 13 for the first time length (at this time, the three modules included in the selection module 12 are included).
  • the first touch detection signal outputted by the driving module 11 is simultaneously input into the three touch electrodes 13 connected to the selection module 12 .
  • the first touch detection signal is input to each of the touch electrodes 13 in the above step S22, it is possible to detect whether there is a touch input by detecting a change in a signal (for example, a voltage signal) on each touch electrode 13.
  • a signal for example, a voltage signal
  • step S22 the selection module 12 simultaneously inputs the first touch detection signals output by the driving module 11 into the n touch electrodes 13 connected to the selection module 12, and the touch electrodes are usually located in the same column. The same detection line is connected. Therefore, in step S22, although the touch input can be detected by the voltage change on the touch electrode, the position of the touch input cannot be located.
  • step S24 if it is detected that there is a touch input, step S24 is performed.
  • step S24 controlling each driving module to output a second touch detection signal of a second time length; and controlling each selection module to sequentially input a second touch detection signal output by the corresponding driving module to the n touch electrodes corresponding to the selection module, that is, The selection module is only turned on by one of the n touch electrodes corresponding to the touch time and the second touch detection signal is input to the touch electrode at the same time in the second time length.
  • the electronic device adopts the second touch mode.
  • step S24 after the electronic device is detected to have the touch input, the selection module 12 is sequentially turned on with the three touch electrodes 13 in the second time length (in FIG. 4 and the first touch electrode guide). For example, the second touch detection signals output by the corresponding driving module 11 are sequentially input to the three touch electrodes 13 corresponding to the selection module 12 .
  • the first time length in the above embodiment is less than the second time length.
  • the second length of time may be n times (eg, 3 times) the length of the first time.
  • the ratio of the second time length to the first time length is equal to the number of touch electrodes corresponding to each of the selection modules 12.
  • step S23 the selection module sequentially inputs the second touch detection signal output by the corresponding driving module to the n touch electrodes corresponding to the selection module, so that the detected signal may change according to the detected signal (eg, voltage change). And the timing of the driving signal (eg, driving voltage) on each of the driving electrodes determines the position of the touch input.
  • the driving signal eg, driving voltage
  • each driving module outputs a first touch detection signal of a first time length in the first touch mode; and controls each selection module to simultaneously correspond to the n selected modules.
  • the driving module corresponding to the touch electrode input outputs a first touch detection signal having a first time length; and when detecting the touch input, controlling each driving module to output a second touch detection signal of a second time length;
  • the selection module sequentially inputs the second touch detection signal outputted by the corresponding driving module to the n touch electrodes corresponding to the selection module.
  • the first touch mode is not touched.
  • the length of time so the embodiment of the present disclosure can shorten the driving module outputting the first touch detection signal when the first touch mode is not used. The length of time, and thus can reduce the power consumption of the electronic device.
  • each driving module is controlled to output a second touch detection signal of a second time length; and each selection module is controlled to sequentially input a corresponding driving module to the n touch electrodes corresponding to the selection module.
  • the outputted second touch detection signal can be implemented, for example, by the following steps S241 and S242.
  • each selection module to input a second touch detection signal output by the corresponding driving module to a touch electrode corresponding to the selection module in each of the n time periods, and select the same selection module in n time periods.
  • the touch electrodes for inputting the second touch detection signal are different.
  • step S24 can be divided into n time segments by first outputting the second time length of the second touch detection signal by the driving module, and then the selection module inputs the second touch to a different touch electrode in each time period.
  • the detection signal is implemented.
  • the touch driving method provided by the embodiment of the present disclosure includes: controlling the driving in the standby mode.
  • the module outputs a first touch detection signal, and controls the selection module to simultaneously input the first touch detection signal to the n touch electrodes connected thereto; and in the case of the normal operation mode, the control driving module outputs the second Touching the detection signal, and the control selection module sequentially inputs the second touch detection signal output by the corresponding driving module to the n touch electrodes corresponding to the selection module.
  • the touch driving method provided by the above embodiment further includes: when it is determined in step S21 that the working mode of the electronic device is the normal working mode, step S24 is directly performed. That is, when it is determined that the working mode of the electronic device is the normal working mode, each driving module is controlled to output a second touch detection signal, and each selection module is controlled to sequentially drive corresponding to the n touch electrode inputs corresponding to the selection module. The second touch detection signal output by the module.
  • the touch driving method provided by the embodiment of the present disclosure includes: controlling the normal working mode including the display mode and
  • the display mode includes: the control driving module outputs the first touch detection signal and controls the selection module to simultaneously input the first touch detection signal to the n touch electrodes connected thereto, and the touch display mode includes the control driving The module outputs a second touch detection signal and controls the selection module to sequentially input the second touch detection signal output by the corresponding driving module to the n touch electrodes corresponding to the selection module.
  • the touch driving method provided by the embodiment of the present disclosure further includes the following steps. .
  • Step S25 In the normal working mode, the type of the normal working mode is determined.
  • step S25 if it is determined that the normal operation mode is the touch display mode, step S24 is performed.
  • step S25 if it is determined that the normal operation mode is the display mode, then step S26 is performed to detect whether there is a touch input. When it is detected that there is a touch input, step S24 is performed; and when the touch input is not detected, step S22 is performed.
  • the voltage of the first touch detection signal is the first voltage
  • the driving module outputs the second touch detection signal of the second time length
  • the voltage of the two touch detection signals is a second voltage
  • the first voltage is smaller than the second voltage. That is, when the control module inputs the first touch detection signal to the touch electrodes, the voltage of the first touch detection signal is less than when the control module inputs the second touch detection signals to the touch electrodes.
  • the voltage of the second touch detection signal when the control module inputs the first touch detection signal to the touch electrodes, the voltage of the first touch detection signal is less than when the control module inputs the second touch detection signals to the touch electrodes.
  • the selection module When the selection module simultaneously inputs the first touch detection signal to each touch electrode, the selection module turns on the touch electrodes, so the area of the touch electrodes increases, and thus the capacitance value of the touch electrodes increases, so The voltage of the input touch electrode can be reduced. Since the voltage value of the first touch detection signal can be reduced in the embodiment of the present disclosure, the power consumption of the electronic device can be further reduced.
  • the embodiment of the present disclosure provides a touch driving device corresponding to the touch driving method provided by the above embodiments.
  • the touch driving device provided by the embodiment of the present disclosure is configured to perform touch driving on an electronic device, where the electronic device includes: m driving modules, m selection modules, and multiple touch electrodes; m driving modules and m selections.
  • the modules are connected one by one; each selection module corresponds to n touch electrodes.
  • m and n are integers and n>1, m>1.
  • the touch driving device 700 provided by the embodiment of the present disclosure includes a touch unit 71 and a detecting unit 72 .
  • the control unit 71 is configured to control each driving module to output a first touch detection signal of a first time length when the electronic device is in the first touch mode, and control each selection module to simultaneously connect n touches with the selection module.
  • the electrode inputs a first touch detection signal output by the corresponding driving module.
  • the detecting unit 72 is configured to detect whether there is a touch input.
  • control unit 71 is further configured to control each of the driving modules to output the second touch detection signal of the second time length; and control each of the selection modules to sequentially contact the n touch electrodes corresponding to the selection module. And inputting a second touch detection signal output by the corresponding driving module; wherein the first time length is less than the second time length.
  • the touch driving device controls the driving module to output the first touch detection of the first time length when confirming that the electronic device is in the first touch mode (for example, the display mode in the standby mode or the normal working mode).
  • a signal controlling each selection module to simultaneously input a first touch detection signal output by the corresponding driving module to the n touch electrodes connected to the selection module, and detecting whether the touch input is detected by the detecting unit, when the touch input is detected
  • the control unit controls each of the driving modules to output a second touch detection signal of a second time length and controls each selection module to sequentially input a second touch detection signal output by the corresponding driving module to the n touch electrodes corresponding to the selection module.
  • the touch driving device controls the driving module to output the first touch detection signal of the first time length in the first touch mode and has no touch input input, and controls each driving module with the touch input control.
  • the second touch detection signal of the second time length is output, and the first time length is less than the second time length. Therefore, the embodiment of the present disclosure can shorten the output of the driving module when the first touch mode is in the first touch mode.
  • the length of time of the touch detection signal can further reduce the power consumption of the electronic device.
  • control unit 71 is configured to divide the second time length into n time segments; and control each selection module to input a second touch detection signal corresponding to the driving module corresponding to the touch electrode connected to the selection module in one time period. And the touch electrodes that input the second touch detection signal are different in the same selection module at the same time period.
  • control unit 71 is further configured to: when the electronic device is in the normal working mode, control each driving module to output a second touch detection signal of a second time length; and control each selection module to sequentially perform n touches corresponding to the selection module.
  • the electrode inputs a second touch detection signal output by the corresponding driving module.
  • the voltage of the first touch detection signal is the first voltage
  • the driving module outputs the second touch detection signal of the second time length
  • the voltage of the two touch detection signals is a second voltage
  • the first voltage is smaller than the second voltage
  • the drive module is a rectification feedback unit; the selection module is a data selector.
  • control unit and the detection unit can be a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, a discrete gate or a transistor logic device, Discrete hardware components.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • a general purpose processor can be a microprocessor or any conventional processor or the like.
  • control unit and the detecting unit may all be integrated in one processor or implemented by different processors respectively; the touch unit and the detecting unit may be implemented in the form of hardware or in the form of hardware plus software functional units. .
  • At least one embodiment of the present disclosure provides a working mode switching method, including: inputting, in a first working mode, a first touch detection signal to the n touch electrodes connected to the selection module (ie, the first working mode) The first touch mode is adopted, wherein n>1 and n is an integer; and switching to the second working mode is detected if the touch input is detected.
  • the first touch detection signals are simultaneously input to the n touch electrodes connected to the same selection module, the power consumption of the touch circuit in the first operation mode can be reduced.
  • the control selection module sequentially inputs the second touch detection signals to the n touch electrodes (ie, the second operation mode adopts the second touch mode).
  • the switching method provided by the embodiment of the present disclosure further includes: in the first working mode, the control driving module inputs the first touch detection signal to the selection module; in the second working mode, the control driving module inputs the selection module The second touch detection signal.
  • embodiments of the present disclosure may include m drive modules, m selection modules.
  • m drive modules For the setting manners of the m driving modules, the m selection modules, and the m*n touch electrodes, reference may be made to the related descriptions in the embodiments of the touch driving method, and the repeated description is omitted.
  • the first touch detection signal has a first time length
  • the second touch detection signal has a second time length
  • the first time length is less than the second time length
  • the first touch detection signal has a first voltage
  • the second touch detection signal has a second voltage
  • the first voltage is smaller than the second voltage
  • the touch device includes m driving modules 11 , m selection modules 12 , and a plurality of touch electrodes 13 , and m driving modules 11 and The m selection modules 12 are connected one by one; each of the selection modules 12 includes n electrical connection paths 120, and the n electrical connection paths 120 respectively correspond to n touch electrodes 13, and the n touch electrodes 13 are located in the same column and They are respectively located in different rows (for example, the touch electrodes 13 are arranged in m columns and n rows), wherein m and n are integers and both are greater than 1.
  • the touch device provided by at least one embodiment of the present disclosure further includes a controller configured to: each of the selection modules 12 through the n electrical connection paths in the first touch mode Electrically connected to the n touch electrodes 13 (as shown in FIG. 3 ), and each of the selection modules 12 is passed through one of the n electrical connection paths and one of the n touch electrodes 13 in the second touch mode. Electrical connection (as shown in Figure 4, only one electrical connection path is shown in Figure 4).
  • the first touch detection signal input by the touch electrode 13 has a first time length; and in the second touch mode, the second touch detection signal input by the touch electrode 13 There is a second length of time, and the first length of time is less than the second length of time.
  • the first touch detection signal has a first voltage
  • the second touch detection signal has a second voltage
  • the first voltage is smaller than the second voltage
  • the controller can be a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • a general purpose processor can be a microprocessor or any conventional processor or the like.
  • a further embodiment of the present disclosure provides an electronic device that includes the touch device or the touch driving device provided by any of the above embodiments and/or is driven by the touch driving method provided by any of the above embodiments.
  • the electronic device in the embodiment of the present disclosure may be: a liquid crystal display panel, an OLED display panel, an electronic paper, a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator product, or a component.

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Abstract

一种触控驱动方法及装置、工作模式切换方法、触控装置以及电子设备，该方法包括：控制驱动模块(11)输出第一触控检测信号；控制选择模块(12)同时向与选择模块(12)连接的n个触控电极(13)输入对应的驱动模块(11)输出的第一触控检测信号；检测是否具有触控输入，在具有触控输入的情况下，控制驱动模块(11)输出第二触控检测信号；控制选择模块(12)依次向与选择模块(12)对应的n个触控电极(13)输入对应的驱动模块(11)输出的第二触控检测信号。该方法可减小电子设备的功耗。

Description

触控驱动方法及装置、切换方法、触控装置以及电子设备
对相关申请的交叉参考
本申请要求于2017年4月17日递交的中国专利申请第201710249605.8号的优先权，在此全文引用上述中国专利申请公开的内容以作为本申请的一部分。
技术领域
本公开实施例涉及一种触控驱动方法、触控驱动装置、工作模式切换方法、触控装置以及电子设备。
背景技术
近年来，手机、电子书、平板电脑等便携式电子设备得到广泛的应用，并且便携式电子设备也不断向更加轻便、更加智能的方向发展。
一方面，由于便携式电子设备向更加轻便的方向发展，因此便携式电子设备的电池被设计的体积越来越小、重量越来越轻。电池的体积减小、重量减轻使便携式电子设备更加轻便的同时也使便携式电子设备的带电量不断减小。另一方面，触控技术作为输入方式相比于键盘或鼠标的输入方式不但具有便利性，而且更具有操作的直觉性，因此触控输入方式也已成为极受欢迎的人机交互方式。
触控显示技术中普遍通过分时驱动的方式对触控电路进行驱动。例如，在触控显示技术中，将一帧时间划分为显示时间段和触控时间段，在显示时间段内向电极层提供公共电压信号，在触控时间段内向电极层提供触控驱动信号；其中，触控电极的驱动信号是外部触控驱动芯片通过位于密封区域的发射电极提供的。
发明内容
本公开的实施例提供一种触控驱动方法、触控驱动装置、工作模式切换方法、触控装置以及电子设备，用于减小电子设备的功耗。
第一方面，本公开的至少一个实施例提供一种触控驱动方法，其包括：控制驱动模块输出第一触控检测信号；控制与所述驱动模块连接的选择模块同时向与所述选择模块连接的n个触控电极输入所述驱动模块输出的所述第一触控检测信号，其中，n为整数且n＞1；检测是否具有触控输入；在检测出具有触控输入的情况下，控制所述驱动模块输出第二触控检测信号，并且控制所述选择模块依次向所述n个触控电极输入所述驱动模块输出的所述第二触控检测信号。
例如，控制m个驱动模块中的每个驱动模块输出所述第一触控检测信号；控制与所述m个驱动模块一一对应连接的m个选择模块中的每个选择模块同时向与所述选择模块连接的n个触控电极输入对应的驱动模块输出的所述第一触控检测信号，其中，m为整数且m＞1；在检测出具有触控输入的情况下，控制所述m个驱动模块中的每个驱动模块输出所述第二触控检测信号，并且控制每个选择模块依次向其对应的n个触控电极输入对应的驱动模块输出的所述第二触控检测信号。
例如，与同一选择模块连接的n个触控电极位于同一列中，并且分别位于不同的行中。
例如，同时控制所述m个选择模块分别向对应的触控电极输入所述第一触控检测信号；并且在检测出具有触控输入的情况下，同时控制所述m个选择模块分别依次向对应的触控电极输入所述第二触控检测信号。
例如，所述驱动模块输出所述第一触控检测信号的时间长度为具有第一时间长度，所述驱动模块输出所述第二触控检测信号具有的时间长度为第二时间长度，所述第一时间长度小于所述第二时间长度。
例如，将所述第二时间长度分为n个时间段；控制所述选择模块在每一个时间段向一个与所述选择模块对应的触控电极输入对应的驱动模块输出的所述第二触控检测信号，且在所述n个时间段所述选择模块分别输入所述第二触控检测信号的触控电极不同。
例如，当所述驱动模块输出第一时间长度的第一触控检测信号时，所述第一触控检测信号的电压为第一电压；当所述驱动模块输出第二时间长度的第二触控检测信号时，所述第二触控检测信号的电压为第二电压；所述第一电压小于所述第二电压。
例如，在待机模式的情况下，控制所述驱动模块输出所述第一触控检测信号，并且控制所述选择模块同时向与所述n个触控电极输入所述第一触控检测信号。
例如，所述的触控驱动方法还包括：在正常工作模式时，控制所述驱动模块输出所述第二触控检测信号，并且控制所述选择模块依次向与所述选择模块对应的n个触控电极输入对应的驱动模块输出的所述第二触控检测信号。
例如，所述的触控驱动方法还包括：控制正常工作模式包括显示模式和触控显示模式；所述显示模式包括控制所述驱动模块输出所述第一触控检测信号并且控制所述选择模块同时向与其连接的所述n个触控电极输入所述第一触控检测信号；所述触控显示模式包括控制所述驱动模块输出所述第二触控检测信号并且控制所述选择模块依次向与所述选择模块对应的n个触控电极输入对应的驱动模块输出的所述第二触控检测信号。
第二方面，本公开的至少一个实施例提供一种工作模式切换方法，其包括：在第一工作模式下，同时向与选择模块连接的n个触控电极输入第一触控检测信号，其中，n为整数且n＞1；以及在检测出具有触控输入的情况下切换到不同于所述第一工作模式的第二工作模式。
例如，在所述第二工作模式下，控制所述选择模块依次向所述n个触控电极输入第二触控检测信号。
第三方面，本公开的至少一个实施例提供一种触控装置，其包括m个驱动模块、m个选择模块以及多个触控电极，所述m个驱动模块与所述m个选择模块一一对应连接；每个选择模块包括n个电连接路径，所述n个电连接路径分别对应n个触控电极，所述n个触控电极位于同一列中并且分别位于不同的行中，其中，m、n都为整数且都大于1。
第四方面，本公开的至少一个实施例还提供一种触控驱动装置，其包括：驱动模块；选择模块，其与所述驱动模块连接；控制单元，被配置为控制所述驱动模块输出第一触控检测信号，并且控制与所述驱动模块连接的所述选择模块同时向与所述选择模块连接的n个触控电极输入对应的驱动模块输出的所述第一触控检测信号；多个触控电极；以及检测单元，被配置为检测是否具有触控输入，其中，当所述检测单元检测到具有触控输入时，所述控制 单元还被配置为控制所述驱动模块输出第二触控检测信号，并且控制所述选择模块依次向与所述选择模块对应的n个触控电极输入对应的驱动模块输出的第二触控检测信号。
例如，所述驱动模块输出所述第一触控检测信号的时间长度为具有第一时间长度，所述驱动模块输出所述第二触控检测信号具有的时间长度为第二时间长度，所述第一时间长度小于所述第二时间长度。
例如，所述控制单元被配置为：将所述第二时间长度分为n个时间段；以及控制所述选择模块在每一个时间段向一个与所述选择模块连接的触控电极输入对应的驱动模块输出的第二触控检测信号，且在所述n个时间段所述选择模块分别输入所述第二触控检测信号的触控电极均不同。
例如，所述控制单元被配置为控制正常工作模式包括显示模式和触控显示模式，其中，在所述显示模式中，所述控制单元被配置为控制所述驱动模块输出所述第一触控检测信号并且控制所述选择模块同时向与其连接的所述n个触控电极输入所述第一触控检测信号；在所述触控显示模式中，所述控制单元被配置为控制所述驱动模块输出所述第二触控检测信号并且控制所述选择模块依次向与所述选择模块对应的n个触控电极输入对应的驱动模块输出的所述第二触控检测信号。
例如，所述控制单元还被配置为在正常工作模式时，控制所述驱动模块输出第二触控检测信号，并且控制所述选择模块依次向与所述选择模块对应的n个触控电极输入对应的驱动模块输出的第二触控检测信号。
例如，当所述驱动模块输出第一时间长度的第一触控检测信号时，所述第一触控检测信号的电压为第一电压；当所述驱动模块输出第二时间长度的第二触控检测信号时，所述第二触控检测信号的电压为第二电压；所述第一电压小于所述第二电压。
例如，所述驱动模块为整流回馈单元；所述选择模块为数据选择器。
第五方面，本公开的至少一个实施例提供一种电子设备，其包括第三方面任一项提供的触控装置或者包括第四方面任一项所述的触控驱动装置。
附图说明
为了更清楚地说明本公开实施例的技术方案，下面将对实施例的附图作 简单地介绍，显而易见地，下面描述中的附图仅仅涉及本公开的一些实施例，而非对本公开的限制。
图1为本公开实施例提供的电子设备的示意性结构图之一；
图2为本公开实施例提供的触控驱动方法的步骤流程图之一；
图3为本公开实施例提供的电子设备的示意性结构图之二；
图4为本公开实施例提供的电子设备的示意性结构图之三；
图5为本公开实施例提供的触控驱动方法的步骤流程图之二；
图6A为本公开实施例提供的触控驱动方法的步骤流程图之三；
图6B为本公开实施例提供的触控驱动方法的步骤流程图之四；
图7为本公开实施例提供的触控驱动装置的示意性结构图；
图8为本公开实施例提供的触控装置的示意性结构图。
具体实施方式
为使本公开实施例的目的、技术方案和优点更加清楚，下面将结合本公开实施例的附图，对本公开实施例的技术方案进行清楚、完整地描述。显然，所描述的实施例是本公开的一部分实施例，而不是全部的实施例。基于所描述的本公开的实施例，本领域普通技术人员在无需创造性劳动的前提下所获得的所有其他实施例，都属于本公开保护的范围。
在触控技术的基础上，便携式电子设备进一步发展出了手势唤醒功能，即，在便携式电子设备处于待机模式时，用户可以通过一定手势的触控输入使便携式电子设备切换到正常工作模式。
本申请的发明人在研究中注意到，为了可以检测到用户在电子设备待机模式下输入的触控操作，电子设备在待机模式时需要输出触控驱动信号以对用户是否有触控输入进行检测，而这会产生较大的功耗。
本公开实施例提供一种触控驱动方法、触控驱动装置、工作模式切换方法、触控装置以及电子设备，并且本公开实施例的总体设计原理为:在电子设备处于开机状态且处于第一工作模式时，控制触控驱动模块同时扫描电子设备中的多个触控电极，且当检测到具有触控输入时(即当检测到电子设备被触摸时)，立刻切换到第二工作模式，由于在电子设备处于第一工作模式时触控电极被同时扫描，因此在电子设备处于第一工作模式时触控扫描时间长 度被缩短，第一工作模式下触控电路产生的功耗也被减小。
例如，在电子设备的第一工作模式与第二工作模式中，电子设备中的触控电极可以采用相同的扫描方式，即触控电极都被同时扫描(以下称为这种触控模式为第一触控模式)；或者，在电子设备的第一工作模式与第二工作模式中，电子设备中的触控电极可以采用不同的扫描方式，例如，在第一工作模式中触控电极被同时扫描(即第一触控模式)并且在第二工作模式中触控电极被分时扫描，即依次扫描各个触控电极(以下称为第二触控模式)。
在第一触控模式下，由于多个触控电极被同时扫描，因此可以确定出是否有触控输入；在第二触控模式下，由于多个触控电极被分时扫描，因此可以确定出触摸位置的横坐标和纵坐标，由此实现触控操作。
例如，第一工作模式为待机模式，第二工作模式为正常工作模式(即电子设备处于开机状态并且为非待机模式)。在这种情况下，本公开实施例可以缩短待机模式下的触控扫描时间长度，从而减小待机模式下触控电路产生的功耗。例如，正常工作模式包括采用第一触控模式的显示模式和采用第二触控模式的触控显示模式。
例如，第一工作模式为正常工作模式中的显示模式，并且第二工作模式为正常工作模式中的触控显示模式。在用户长时间使用显示模式的情况下，本公开实施例通过使第一工作模式为显示模式可以减小触控电路在显示模式下的功耗。
例如，第一工作模式为待机模式，并且第二工作模式为正常工作模式中的显示模式。在这种情况下，本公开实施例可以缩短待机模式下的触控扫描时间长度，从而减小待机模式下触控电路产生的功耗。
本公开的至少一个实施例提供一种触控驱动方法，其包括：控制驱动模块输出第一触控检测信号；控制与驱动模块连接的选择模块同时向与选择模块连接的n(n为整数且n＞1)个触控电极输入驱动模块输出的第一触控检测信号；检测是否具有触控输入；在检测出具有触控输入的情况下，控制驱动模块输出第二触控检测信号，并且控制选择模块依次向其对应的n个触控电极输入驱动模块输出的第二触控检测信号。本公开实施例提供的触控驱动方法用于实现从第一触控模式切换到第二触控模式。
例如，在设置有m个驱动模块、m个选择模块的情况下，控制m个驱 动模块中的每个驱动模块输出第一触控检测信号；控制与m个驱动模块一一对应连接的m个选择模块中的每个选择模块同时向与选择模块连接的n个触控电极输入对应的驱动模块输出的第一触控检测信号，其中，m为整数且m＞1；检测是否具有触控输入；在检测出具有触控输入的情况下，控制m个驱动模块中的每个驱动模块输出第二触控检测信号，并且控制每个选择模块依次(即按照先后顺序)向其对应的n个触控电极输入对应的驱动模块输出的第二触控检测信号。
在设置有m个驱动模块、m个选择模块的情况下，共有m*n个触控电极，例如触控电极排列成m列n行。例如，与同一选择模块连接的n个触控电极位于同一列中，并且分别位于不同的行中(即每行设置有n个触控电极中的一个)。
例如，在设置有m个驱动模块、m个选择模块的情况下，同时控制m个选择模块分别向对应的触控电极输入第一触控检测信号，也就是说，m个选择模块同时向对应的n触控电极输入第一触控检测信号，并且每个触控电极只接收一个选择模块输入的第一触控检测信号；并且，在检测出具有触控输入的情况下，同时控制m个选择模块分别依次向对应的触控电极输入第二触控检测信号，也就是说，每个选择模块在同一时刻只向一个触控电极输入第二触控检测信号，并且m个选择模块同时向对应的触控电极输入第二触控检测信号。
例如，驱动模块输出第一触控检测信号的时间长度为第一时间长度，驱动模块输出第二触控检测信号的时间长度为第二时间长度，所述第一时间长度小于所述第二时间长度，第一时间长度小于第二时间长度。由于在检测到触控输入的情况下，选择模块向其对应的n个触控电极逐个施加(而非同时施加)第二触控检测信号，因此第二时间长度为这n个触控电极被施加第二触控检测信号的时间长度的总和。例如，这n个触控电极中的每个被施加的第二触控检测信号的时间长度等于第一时间长度，则第二时间长度为第一时间长度的n倍。
下面结合附图对本公开实施例提供的触控驱动方法进行详细说明。
本公开的实施例提供一种触控驱动方法，该触控驱动方法用于对电子设备进行触控驱动。例如，参照图1所示，电子设备包括：m个驱动模块11、 m个选择模块12以及多个触控电极13；m个驱动模块11与m个选择模块12一一对应连接，即每个驱动模块11连接一个选择模块12，并且每个选择模块12连接一个驱动模块11；每一个选择模块12对应n(例如，n大于或等于2)个触控电极13。例如，每个触控电极13只对应一个选择模块12。
例如，每个选择模块12包括n个电连接路径120(例如开关)，这n个电连接路径与上述n个触控电极13一一对应，在每个电连接路径120导通(图1中为未导通状态)时，该电连接路径120将该选择模块12与该电连接路径120对应的触控电极13电连接。
由上述说明可知本公开实施例中的触控电极13为矩阵排布，且触控电极的数量为m*n。
例如，本公开实施例中的驱动模块11可以为整流回馈单元(英文名称：Active Front End,简称：AFE)；选择模块12可以为数据选择器(英文名称：Multiplexer,简称：Mux)。
示例性的，当上述电子设备为液晶显示器(英文名称：Liquid Crystal Display，简称：LCD)时，可以将液晶显示器中的液晶显示面板包括的公共电极层分割复用为触控电极。在液晶显示器正常显示时，向液晶显示面板的公共电极层输入公共电压；在液晶显示器进行触控检测时，向复用为驱动电极的公共电极层输入触控驱动信号。
示例性的，当上述电子设备为有机电致发光显示器(英文名称：Organic Light-Emitting Diode，简称：OLED)时，也可以将OLED的阴极层分割复用为触控电极，并通过阴极层下方的场效应晶体管(例如薄膜晶体管，英文：Thin Film Transistor，简称：TFT)区域的金属层制作形成导线，通过导线向复用为触控电极的阴极层传导触控驱动信号。
例如，上述电子设备中也可以单独制作形成触控电极，但单独制作触控电极会增加电子设备的制程工艺以及电子设备的厚度，因此优选的将已有的电极分割复用为触控电极。
例如，参照图2所示，本公开实施例提供的触控驱动方法包括如下步骤S21至S24。
S21、判断电子设备的工作模式。
在步骤S21中，若电子设备为第一工作模式(例如待机模式或者正常工 作模式中的显示模式)，则执行步骤S22。
S22、控制各驱动模块输出第一时间长度的第一触控检测信号；控制各选择模块同时向与选择模块连接的n个触控电极输入对应的驱动模块输出的第一触控检测信号。
例如，在步骤S22中，选择模块电连接与其对应的n个触控电极中的每个。
示例性的，参照图3所示，图3中以n等于3为例对本公开实施例进行说明。在上述步骤S22中，电子设备采用第一触控模式，在这种情况下，选择模块12在第一时间长度内同时与3个触控电极13导通(此时选择模块12包括的3个电连接路径都为导通状态)，从而将驱动模块11输出的第一触控检测信号同时输入与选择模块12连接的3个触控电极13中。
S23、检测是否具有触控输入。
由于上述步骤S22中向各触控电极13中输入了第一触控检测信号，所以可以通过检测各触控电极13上的信号(例如电压信号)的变化来检测是否具有触控输入。
需要说明的是，由于上述步骤S22中选择模块12将驱动模块11输出的第一触控检测信号同时输入与选择模块12连接的n个触控电极13中，且通常位于同一列的触控电极连接同一根检测线，所以步骤S22中虽然可以通过触控电极上的电压变化检测到是否具有触控输入，但无法对触控输入的位置进行定位。
在上述步骤S23中，若检测到具有触控输入，则执行步骤S24。
S24、控制各驱动模块输出第二时间长度的第二触控检测信号；控制各选择模块依次向与选择模块对应的n个触控电极输入对应的驱动模块输出的第二触控检测信号，即，选择模块在第二时间长度内的同一时刻只与其对应的n个触控电极中的一个触控电极导通并且向该触控电极输入第二触控检测信号。在该步骤S24中，电子设备采用第二触控模式。
示例性的，参照图4所示，图4中以n等于3为例对本公开实施例进行说明。在上述步骤S24中，在电子设备被检测到具有触控输入后，选择模块12在第二时间长度内依次与3个触控电极13导通(图4中以与第一个触控电极导通为例进行说明)，从而依次向与选择模块12对应的3个触控电极 13输入对应的驱动模块11输出的第二触控检测信号。
上述实施例中的第一时间长度小于第二时间长度。例如，第二时间长度可以为第一时间长度的n倍(例如3倍)。在这种情况下，第二时间长度与第一时间长度之比等于每个选择模块12所对应的触控电极的数量。
进一步的，由于步骤S23中选择模块依次向与选择模块对应的n个触控电极输入对应的驱动模块输出的第二触控检测信号，所以此时可以根据检测到的信号变化(例如电压变化)以及各驱动电极上驱动信号(例如驱动电压)的时序确定触控输入的位置。
在本公开实施例提供的触控驱动方法中，在第一触控模式时控制各驱动模块输出第一时间长度的第一触控检测信号；控制各选择模块同时向与选择模块对应的n个触控电极输入对应的驱动模块输出具有第一时间长度的第一触控检测信号；在检测到具有触控输入时，控制各驱动模块输出第二时间长度的第二触控检测信号；控制各选择模块依次向与选择模块对应的n个触控电极输入对应的驱动模块输出的第二触控检测信号；在本公开实施例提供的触控驱动方法中，在第一触控模式且没有触控输入时控制各驱动模块输出第一时间长度的第一触控检测信号，在具有触控输入控制各驱动模块输出第二时间长度的第二触控检测信号，且第一时间长度小于第二时间长度，所以本公开实施例可以实现在第一触控模式且没有触控输入时缩短驱动模块输出第一触控检测信号的时间长度，进而可以减小电子设备的功耗。
例如，参照图5所示，上述步骤S24中控制各驱动模块输出第二时间长度的第二触控检测信号；控制各选择模块依次向与选择模块对应的n个触控电极输入对应的驱动模块输出的第二触控检测信号，例如可以通过如下步骤S241和步骤S242来实现。
S241、将第二时间长度分为n个时间段。
S242、控制每个选择模块在n个时间段中的每个时间段向一个与选择模块对应的触控电极输入对应的驱动模块输出的第二触控检测信号且在n个时间段同一选择模块输入第二触控检测信号的触控电极均不同。
即，步骤S24可以通过首先将驱动模块输出第二触控检测信号的第二时间长度分为n个时间段，然后选择模块在每一个时间段分别向一个不同的触控电极输入第二触控检测信号来实现。
例如，在本公开实施例提供的触控驱动方法用于将待机模式切换到正常工作模式的情况下，本公开至少一个实施例提供的触控驱动方法包括：在待机模式的情况下，控制驱动模块输出第一触控检测信号，并且控制选择模块同时向与其连接的所述n个触控电极输入所述第一触控检测信号；并且在正常工作模式的情况下，控制驱动模块输出第二触控检测信号，并且控制选择模块依次向与所述选择模块对应的n个触控电极输入对应的驱动模块输出的第二触控检测信号。
例如，参照图6A所示，上述实施例提供的触控驱动方法还包括：当在步骤S21中确定电子设备的工作模式为正常工作模式时，直接执行步骤S24。即，在确定电子设备的工作模式为正常工作模式的情况下，控制各驱动模块输出第二触控检测信号，并且控制各选择模块依次向与选择模块对应的n个触控电极输入对应的驱动模块输出的第二触控检测信号。
需要说明的是，在如图6A所示的实施例中，在确认电子设备为正常工作模式时，控制扫描信号的输入方式与电子设备处于待机状态且检测到触控输入后的扫描信号的输入方式相同，因此上述实施例也可以通过上述图5所示的实现方式来实现。
例如，在本公开实施例提供的触控驱动方法用于将显示模式切换到触控显示模式的情况下，本公开至少一个实施例提供的触控驱动方法包括：控制正常工作模式包括显示模式和触控显示模式，使显示模式包括控制驱动模块输出第一触控检测信号并且控制选择模块同时向与其连接的n个触控电极输入第一触控检测信号，并且使触控显示模式包括控制驱动模块输出第二触控检测信号并且控制选择模块依次向与选择模块对应的n个触控电极输入对应的驱动模块输出的第二触控检测信号。
例如，在本公开实施例提供的触控驱动方法用于将显示模式切换到触控显示模式的情况下，参照图6B所示，本公开至少一个实施例提供的触控驱动方法还包括以下步骤。
步骤S25：在正常工作模式下，确定该正常工作模式的类型。
在该步骤S25中，如果确定出该正常工作模式为触控显示模式，则进行步骤S24。
在该步骤S25中，如果确定出该正常工作模式为显示模式，则进行步骤 S26：检测是否具有触控输入。在检测出具有触控输入的情况下，进行步骤S24；在未检测出触控输入的情况下，进行步骤S22。
例如，当驱动模块输出第一时间长度的第一触控检测信号时，第一触控检测信号的电压为第一电压；当驱动模块输出第二时间长度的第二触控检测信号时，第二触控检测信号的电压为第二电压；第一电压小于第二电压。即，在控制各选择模块同时向各触控电极输入第一触控检测信号时第一触控检测信号的电压小于在控制各选择模块依次向各触控电极输入第二触控检测信号时第二触控检测信号的电压。
由于选择模块同时向各触控电极输入第一触控检测信号时，选择模块将各触控电极导通，所以触控电极的面积增加，进而使触控电极的电容值增大，所以此时可以减小输入触控电极的电压；由于本公开实施例可以减小第一触控检测信号的电压值，所以可以进一步减小电子设备的功耗。
本公开实施例提供一种与上述实施例提供的触控驱动方法相对应的触控驱动装置。同样，本公开实施例提供的触控驱动装置用于对电子设备进行触控驱动，电子设备包括：m个驱动模块、m个选择模块以及多个触控电极；m个驱动模块与m个选择模块一一对应连接；每一个选择模块对应n个触控电极。其中，m、n为整数且n>1,m>1。
还需要说明的是，上述触控驱动方法实施例中的解释说明均可以援引到对本公开实施例提供的触控驱动装置进行解释说明，因此上述方法实施例中已作解释说明的内容，本公开实施例中在此不再赘述。
例如，参照图7所示，本公开实施例提供的触控驱动装置700包括触控单元71和检测单元72。
控制单元71，用于在确认电子设备为第一触控模式时，控制各驱动模块输出第一时间长度的第一触控检测信号；控制各选择模块同时向与选择模块连接的n个触控电极输入对应的驱动模块输出的第一触控检测信号。
检测单元72，用于检测是否具有触控输入。
当检测单元检测到具有触控输入时，控制单元71还用于控制各驱动模块输出第二时间长度的第二触控检测信号；控制各选择模块依次向与选择模块对应的n个触控电极输入对应的驱动模块输出的第二触控检测信号；其中，第一时间长度小于第二时间长度。
本公开实施例提供的触控驱动装置在确认电子设备为第一触控模式(例如待机模式或正常工作模式中的显示模式)时，控制各驱动模块输出第一时间长度的第一触控检测信号；控制各选择模块同时向与选择模块连接的n个触控电极输入对应的驱动模块输出的第一触控检测信号，并通过检测单元检测是否具有触控输入，当检测到触控输入时，控制单元控制各驱动模块输出第二时间长度的第二触控检测信号并且控制各选择模块依次向与选择模块对应的n个触控电极输入对应的驱动模块输出的第二触控检测信号。本公开实施例提供的触控驱动装置在第一触控模式且没有触控输输入时，控制各驱动模块输出第一时间长度的第一触控检测信号，在具有触控输入控制各驱动模块输出第二时间长度的第二触控检测信号，且第一时间长度小于第二时间长度，所以本公开实施例可以在在第一触控模式且没有触控输入时可以缩短驱动模块输出第一触控检测信号的时间长度，进而可以减小电子设备的功耗。
例如，控制单元71用于将第二时间长度分为n个时间段；控制各选择模块在一个时间段向一个与选择模块连接的触控电极输入对应的驱动模块输出的第二触控检测信号，且在同一时间段同一选择模块输入第二触控检测信号的触控电极均不同。
例如，控制单元71还用于在确认电子设备为正常工作模式时，控制各驱动模块输出第二时间长度的第二触控检测信号；控制各选择模块依次向与选择模块对应的n个触控电极输入对应的驱动模块输出的第二触控检测信号。
例如，当驱动模块输出第一时间长度的第一触控检测信号时，第一触控检测信号的电压为第一电压；当驱动模块输出第二时间长度的第二触控检测信号时，第二触控检测信号的电压为第二电压；第一电压小于第二电压。
例如，驱动模块为整流回馈单元；选择模块为数据选择器。
例如，控制单元和检测单元可以是通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现场可编程门阵列(FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。通用处理器可以是微处理器或者任何常规的处理器等。
另外，控制单元和检测单元可以全部集成在一个处理器中，或者分别通过不同的处理器实现；触控单元和检测单元既可以采用硬件的形式实现，也可以采用硬件加软件功能单元的形式实现。
本公开的至少一个实施例提供一种工作模式切换方法，其包括：在第一工作模式下，同时向与选择模块连接的n个触控电极输入第一触控检测信号(即第一工作模式采用第一触控模式)，其中，n＞1且n为整数；以及在检测出具有触控输入的情况下切换到第二工作模式。在本公开实施例中，由于同时向与同一选择模块连接的n个触控电极输入第一触控检测信号，因此可以减小第一工作模式下触控电路的功耗。
例如，在第二工作模式下，控制选择模块依次向n个触控电极输入第二触控检测信号(即第二工作模式采用第二触控模式)。
例如，本公开实施例提供的切换方法还包括：在第一工作模式下，控制驱动模块向选择模块输入所述第一触控检测信号；在第二工作模式下，控制驱动模块向选择模块输入所述第二触控检测信号。
例如，本公开实施例可以包括m个驱动模块，m个选择模块。这m个驱动模块、m个选择模块以及m*n个触控电极的设置方式可以参考上述触控驱动方法的实施例中的相关描述，重复之处不再赘述。
例如，第一触控检测信号具有第一时间长度，第二触控检测信号具有第二时间长度，并且第一时间长度小于第二时间长度。
例如，第一触控检测信号具有第一电压，第二触控检测信号具有第二电压，第一电压小于第二电压。
本公开至少一个实施例还提供一种触控装置，如图1所示，该触控装置包括m个驱动模块11、m个选择模块12以及多个触控电极13，m个驱动模块11与m个选择模块12一一对应连接；每个选择模块12包括n个电连接路径120，n个电连接路径120分别对应n个触控电极13，该n个触控电极13位于同一列中并且分别位于不同的行中(例如，触控电极13排列成m列n行)，其中，m、n都为整数且都大于1。
例如，如图8所示，本公开的至少一个实施例提供的触控装置还包括控制器，其被配置为：在第一触控模式下使每个选择模块12通过n个电连接路径分别与n个触控电极13电连接(如图3所示)，并且在第二触控模式下使每个选择模块12通过n个电连接路径中的一个与n个触控电极13中的一个电连接(如图4所示，图4中只示出了一个电连接路径)。
例如，在第一触控模式下，触控电极13被输入的第一触控检测信号具有 第一时间长度；在第二触控模式下，触控电极13被输入的第二触控检测信号具有第二时间长度，并且第一时间长度小于第二时间长度。
例如，第一触控检测信号具有第一电压，第二触控检测信号具有第二电压，第一电压小于第二电压。
例如，控制器可以是通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现场可编程门阵列(FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。通用处理器可以是微处理器或者任何常规的处理器等。
本公开再一实施例提供一种电子设备，该电子设备包括上述任一实施例提供的触控装置或者触控驱动装置和/或通过上述任一项实施例提供的触控驱动方法进行驱动。
示例性的，本公开实施例中的电子设备可以为：液晶显示面板、OLED显示面板、电子纸、手机、平板电脑、电视机、显示器、笔记本电脑、数码相框、导航仪产品或部件。
本公开实施例提供的触控驱动方法、触控驱动装置、工作模式切换方法、触控装置以及电子设备的实施例中相同名称的部件及其设置方式可以互相参照。
以上所述仅是本公开的示范性实施方式，而非用于限制本公开的保护范围，本公开的保护范围由所附的权利要求确定。

Claims (20)

  1. 一种触控驱动方法，包括：
    控制驱动模块输出第一触控检测信号；
    控制与所述驱动模块连接的选择模块同时向与所述选择模块连接的n个触控电极输入所述驱动模块输出的所述第一触控检测信号，其中，n为整数且n＞1；
    检测是否具有触控输入；以及
    在检测出具有触控输入的情况下，控制所述驱动模块输出第二触控检测信号，并且控制所述选择模块依次向所述n个触控电极输入所述驱动模块输出的所述第二触控检测信号。
  2. 根据权利要求1所述的触控驱动方法，其中，
    控制m个驱动模块中的每个驱动模块输出所述第一触控检测信号；
    控制与所述m个驱动模块一一对应连接的m个选择模块中的每个选择模块同时向与所述选择模块连接的n个触控电极输入对应的驱动模块输出的所述第一触控检测信号，其中，m为整数且m＞1；以及
    在检测出具有触控输入的情况下，控制所述m个驱动模块中的每个驱动模块输出所述第二触控检测信号，并且控制每个选择模块依次向其对应的n个触控电极输入对应的驱动模块输出的所述第二触控检测信号。
  3. 根据权利要求1或2所述的触控驱动方法，其中，与同一选择模块连接的n个触控电极位于同一列中，并且分别位于不同的行中。
  4. 根据权利要求3所述的触控驱动方法，其中，
    同时控制所述m个选择模块分别向对应的触控电极输入所述第一触控检测信号；并且
    在检测出具有触控输入的情况下，同时控制所述m个选择模块分别依次向对应的触控电极输入所述第二触控检测信号。
  5. 根据权利要求1-4中任一项所述的触控驱动方法，其中，
    所述驱动模块输出所述第一触控检测信号的时间长度为第一时间长度，
    所述驱动模块输出所述第二触控检测信号的时间长度为第二时间长度，所述第一时间长度小于所述第二时间长度。
  6. 根据权利要求5所述的触控驱动方法，其中，
    将所述第二时间长度分为n个时间段；
    控制所述选择模块在每一个时间段向一个与所述选择模块对应的触控电极输入对应的驱动模块输出的所述第二触控检测信号，且在所述n个时间段所述选择模块分别输入所述第二触控检测信号的触控电极不同。
  7. 根据权利要求5或6所述的触控驱动方法，其中，
    当所述驱动模块输出第一时间长度的第一触控检测信号时，所述第一触控检测信号的电压为第一电压；
    当所述驱动模块输出第二时间长度的第二触控检测信号时，所述第二触控检测信号的电压为第二电压；
    所述第一电压小于所述第二电压。
  8. 根据权利要求1-7中任一项所述的触控驱动方法，其中，在待机模式的情况下，控制所述驱动模块输出所述第一触控检测信号，并且控制所述选择模块同时向与其连接的所述n个触控电极输入所述第一触控检测信号。
  9. 根据权利要求8所述的触控驱动方法，还包括：
    在正常工作模式时，控制所述驱动模块输出所述第二触控检测信号，并且控制所述选择模块依次向与所述选择模块对应的n个触控电极输入对应的驱动模块输出的所述第二触控检测信号。
  10. 根据权利要求1-8中任一项所述的触控驱动方法，还包括：
    控制正常工作模式包括显示模式和触控显示模式，
    所述显示模式包括控制所述驱动模块输出所述第一触控检测信号并且控制所述选择模块同时向与其连接的所述n个触控电极输入所述第一触控检测信号，
    所述触控显示模式包括控制所述驱动模块输出所述第二触控检测信号并且控制所述选择模块依次向与所述选择模块对应的n个触控电极输入对应的驱动模块输出的所述第二触控检测信号。
  11. 一种工作模式切换方法，包括：
    在第一工作模式下，同时向与选择模块连接的n个触控电极输入第一触控检测信号，其中，n为整数且n＞1；以及
    在检测出具有触控输入的情况下切换到不同于所述第一工作模式的第二 工作模式。
  12. 根据权利要求11所述的工作模式切换方法，其中，在所述第二工作模式下，控制所述选择模块依次向所述n个触控电极输入第二触控检测信号。
  13. 一种触控装置，包括m个驱动模块、m个选择模块以及多个触控电极，其中，
    所述m个驱动模块与所述m个选择模块一一对应连接；
    每个选择模块包括n个电连接路径，所述n个电连接路径分别对应n个触控电极，所述n个触控电极位于同一列中并且分别位于不同的行中，
    其中，m、n都为整数且都大于1。
  14. 一种触控驱动装置，包括：
    驱动模块；
    选择模块，其与所述驱动模块连接；
    控制单元，被配置为控制所述驱动模块输出第一触控检测信号，并且控制与所述驱动模块连接的所述选择模块同时向与所述选择模块连接的n个触控电极输入对应的驱动模块输出的所述第一触控检测信号；
    多个触控电极；以及
    检测单元，被配置为检测是否具有触控输入，
    其中，当所述检测单元检测到具有触控输入时，所述控制单元还被配置为控制所述驱动模块输出第二触控检测信号，并且控制所述选择模块依次向与所述选择模块对应的n个触控电极输入对应的驱动模块输出的第二触控检测信号。
  15. 根据权利要求14所述的触控驱动装置，其中，
    所述驱动模块输出所述第一触控检测信号的时间长度为第一时间长度，
    所述驱动模块输出所述第二触控检测信号的时间长度为第二时间长度，
    所述第一时间长度小于所述第二时间长度。
  16. 根据权利要求15所述的触控驱动装置，其中，所述控制单元被配置为：
    将所述第二时间长度分为n个时间段；以及
    控制所述选择模块在每一个时间段向一个与所述选择模块连接的触控电极输入对应的驱动模块输出的第二触控检测信号，且在所述n个时间段所述 选择模块分别输入所述第二触控检测信号的触控电极不同。
  17. 根据权利要求14-16中任一项所述的触控驱动装置，其中，
    所述控制单元还被配置为在正常工作模式时，控制所述驱动模块输出第二触控检测信号，并且控制所述选择模块依次向与所述选择模块对应的n个触控电极输入对应的驱动模块输出的第二触控检测信号；或者
    所述控制单元还被配置为控制正常工作模式包括显示模式和触控显示模式，其中，在所述显示模式中，所述控制单元被配置为控制所述驱动模块输出所述第一触控检测信号并且控制所述选择模块同时向与其连接的所述n个触控电极输入所述第一触控检测信号；在所述触控显示模式中，所述控制单元被配置为控制所述驱动模块输出所述第二触控检测信号并且控制所述选择模块依次向与所述选择模块对应的n个触控电极输入对应的驱动模块输出的所述第二触控检测信号。
  18. 根据权利要求15或16所述的触控驱动装置，其中，
    当所述驱动模块输出第一时间长度的第一触控检测信号时，所述第一触控检测信号的电压为第一电压；
    当所述驱动模块输出第二时间长度的第二触控检测信号时，所述第二触控检测信号的电压为第二电压；
    所述第一电压小于所述第二电压。
  19. 根据权利要求15-18中任一项所述的触控驱动装置，其中，所述驱动模块为整流回馈单元；所述选择模块为数据选择器。
  20. 一种电子设备，包括权利要求13所述的触控装置或者权利要求14-19中任一项所述的触控驱动装置。
PCT/CN2018/083235 2017-04-17 2018-04-16 触控驱动方法及装置、切换方法、触控装置以及电子设备 Ceased WO2018192453A1 (zh)

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