WO2022068427A1 - 显示触摸装置和控制方法 - Google Patents

显示触摸装置和控制方法 Download PDF

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Publication number
WO2022068427A1
WO2022068427A1 PCT/CN2021/112655 CN2021112655W WO2022068427A1 WO 2022068427 A1 WO2022068427 A1 WO 2022068427A1 CN 2021112655 W CN2021112655 W CN 2021112655W WO 2022068427 A1 WO2022068427 A1 WO 2022068427A1
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WIPO (PCT)
Prior art keywords
touch
display
power supply
circuit
voltage
Prior art date
Application number
PCT/CN2021/112655
Other languages
English (en)
French (fr)
Inventor
黄翠兰
张媛
王洁琼
刘磊
王薇
高建龙
陈勃昊
Original Assignee
京东方科技集团股份有限公司
北京京东方显示技术有限公司
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 京东方科技集团股份有限公司, 北京京东方显示技术有限公司 filed Critical 京东方科技集团股份有限公司
Priority to DE112021002660.7T priority Critical patent/DE112021002660T5/de
Priority to US17/759,614 priority patent/US11880524B2/en
Publication of WO2022068427A1 publication Critical patent/WO2022068427A1/zh

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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input 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
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412Digitisers structurally integrated in a display
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input 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
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0416Control or interface arrangements specially adapted for digitisers
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26Power supply means, e.g. regulation thereof
    • G06F1/32Means for saving power
    • G06F1/3203Power management, i.e. event-based initiation of a power-saving mode
    • G06F1/3234Power saving characterised by the action undertaken
    • G06F1/325Power saving in peripheral device
    • G06F1/3262Power saving in digitizer or tablet
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26Power supply means, e.g. regulation thereof
    • G06F1/32Means for saving power
    • G06F1/3203Power management, i.e. event-based initiation of a power-saving mode
    • G06F1/3234Power saving characterised by the action undertaken
    • G06F1/325Power saving in peripheral device
    • G06F1/3265Power saving in display device
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00Arrangements for program control, e.g. control units
    • G06F9/06Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/44Arrangements for executing specific programs
    • G06F9/4401Bootstrapping
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals

Definitions

  • the present disclosure relates to the field of display touch technology, and in particular, to a display touch device and a control method.
  • the system automatically enters the sleep mode, and the display part is turned off to save power consumption.
  • the system wakes up, and then the screen is turned on.
  • the touch function can also be used to wake up the system by tapping the screen.
  • the existing display touch device cannot conveniently wake up the system by tapping the screen and using the touch function in the sleep mode.
  • an embodiment of the present disclosure provides a display touch device, the display touch device includes a display panel, a display touch drive circuit and a touch operation processing circuit, the display panel includes a plurality of rows of gate lines;
  • the touch operation processing circuit is configured to provide a first touch enable signal to the display touch drive circuit to control the display touch drive circuit when it is detected that the display touch device is in a touch-only detection state Perform touch detection.
  • the display touch device further includes a power supply control circuit, a display power supply terminal, a touch power supply terminal, and a power management module; the power management module is used for inputting the terminal according to its voltage.
  • the input power supply voltage supplies power to the display touch drive circuit;
  • the power supply control circuit is respectively electrically connected with the display power supply terminal, the touch power supply terminal and the power management module, and is used for controlling the display power supply terminal to connect with the display power supply terminal when the display power supply terminal provides a display power supply voltage.
  • the voltage input terminals are connected, and are used to control the connection between the touch power supply terminal and the voltage input terminal when the display power supply terminal does not provide a display power supply voltage and the touch power supply terminal provides a touch power supply voltage. connection between.
  • the power supply control circuit includes a voltage divider subcircuit, a signal generation subcircuit and a power supply control subcircuit;
  • the voltage dividing sub-circuit is respectively electrically connected with the display power supply terminal and the signal generating sub-circuit, and is used for dividing the display power supply voltage when the display power supply terminal provides the display power supply voltage to generate a parallel Display the working voltage through the output of the display working voltage terminal;
  • the signal generating sub-circuit is respectively electrically connected with the display working voltage terminal and the control signal output terminal, and is used for generating and outputting a control signal through the control signal output terminal according to the display working voltage.
  • the control signal is controlled to be the first voltage signal
  • the control signal is controlled to be the second voltage signal
  • the power supply control sub-circuit is respectively electrically connected to the control signal output terminal, the display power supply terminal, the touch power supply terminal and the voltage input terminal, and is used for, when the control signal is a first voltage signal, Controlling the communication between the display power supply terminal and the voltage input terminal is also used to control the communication between the touch power supply terminal and the voltage input terminal when the control signal is the second voltage signal.
  • the signal generation subcircuit is integrated in the touch operation processing circuit.
  • the first voltage signal is a low voltage signal
  • the second voltage signal is a high voltage signal
  • the first voltage signal is a high voltage signal
  • the second voltage signal is a low voltage signal
  • the power supply control sub-circuit includes a first switch sub-circuit, a second switch sub-circuit, a first inverting sub-circuit and a second inverting sub-circuit;
  • the first inverting sub-circuit is used for inverting the control signal to obtain a first inverting voltage signal, and providing the first inverting voltage signal to the control terminal of the second switching sub-circuit and the second inverting subcircuit;
  • the second inversion sub-circuit is used to invert the first inversion voltage signal to obtain a second inversion voltage signal, and provide the second inversion voltage signal to the first switch sub-circuit the control end of the circuit;
  • the first switch sub-circuit is used to control the communication between the display power supply terminal and the voltage input terminal when the second inversion voltage signal is the first voltage signal, and when the second inversion voltage signal is the first voltage signal When it is the second voltage signal, control to disconnect the connection between the display power supply terminal and the voltage input terminal;
  • the second switch sub-circuit is used to control the communication between the touch power supply terminal and the voltage input terminal when the first inversion voltage signal is the first voltage signal, and when the first inversion voltage signal is the first voltage signal When the voltage signal is the second voltage signal, the control is to disconnect the connection between the touch power supply terminal and the voltage input terminal.
  • the first switch sub-circuit includes a first switch transistor and a second switch transistor;
  • Both the control electrode of the first switching transistor and the control electrode of the second switching transistor are electrically connected to the control terminal of the first switching sub-circuit;
  • the first pole of the first switch transistor is electrically connected to the display power supply terminal, and the second terminal of the first switch transistor is electrically connected to the first pole of the second switch transistor;
  • the second pole of the second switching transistor is electrically connected to the voltage input terminal.
  • the second switch sub-circuit includes a third switch transistor
  • the first pole of the third switch transistor is electrically connected to the touch power supply terminal, and the second pole of the third switch transistor is electrically connected to the voltage input terminal.
  • the first inverting sub-circuit includes a first inverting transistor and a first resistor
  • the control electrode of the first inversion transistor is electrically connected to the control signal output end, the first electrode of the first inversion transistor is electrically connected to the control end of the second switch sub-circuit, and the first inversion transistor is electrically connected to the control end of the second switch sub-circuit.
  • the second pole of the phase transistor is electrically connected to the third voltage terminal;
  • the first end of the first resistor is electrically connected to the control end of the second switch sub-circuit, and the second end of the first resistor is electrically connected to the touch power supply end.
  • the second inverting sub-circuit includes a second inverting transistor and a second resistor
  • the control electrode of the second inversion transistor is electrically connected to the control terminal of the second switch sub-circuit, the first electrode of the second inversion transistor is electrically connected to the touch power supply terminal, and the second inversion transistor is electrically connected to the touch power supply terminal.
  • the second electrode of the phase transistor is electrically connected to the third voltage terminal through the second resistor.
  • the display touch device further includes a control diode
  • the anode of the control diode is electrically connected to the display power supply terminal, and the cathode of the control diode is electrically connected to the touch power supply terminal.
  • the display touch device further includes a system terminal;
  • the touch operation processing circuit is further configured to provide a wake-up signal to the system end after detecting a touch event on the display panel;
  • the system end is configured to control the display touch driving circuit to perform display driving after receiving the wake-up signal.
  • the display touch device further includes a gate drive module
  • the touch operation processing circuit is further configured to provide a discharge control signal to the gate driving module when it is detected that the display touch device is in a touch-only detection state, so that the gate driving module controls the The plurality of rows of gate lines are turned on, and after a discharge control signal is provided to the gate driving module, a first touch enable signal is provided to the display touch driving circuit.
  • the display touch device further includes a data driver; the display panel further includes a plurality of columns of data lines;
  • the touch operation processing circuit is further configured to provide a data driving control signal to a data driver when a discharge control signal is provided to the gate driving module, so that the data driver provides a common electrode voltage signal to the data line.
  • the display touch device further includes a timing controller
  • the timing controller is configured to stop outputting a second touch enable signal to the touch operation processing circuit when the display touch device is in a touch detection only state;
  • the touch operation processing circuit is configured to determine that the display touch device is in a touch detection only state when it is detected that the timing controller stops outputting the second touch enable signal.
  • an embodiment of the present disclosure further provides a control method, which is applied to the above-mentioned display touch device, and the control method includes:
  • the touch operation processing circuit When the touch operation processing circuit detects that the display touch device is in a touch-only detection state, the touch operation processing circuit provides a first touch enable signal to the display touch drive circuit to control the display touch drive circuit to touch control detection.
  • the display touch device further includes a power supply control circuit, a display power supply terminal, a touch power supply terminal, and a power management module; the power management module is used for the power supply voltage input by the voltage input terminal of the power management module. supplying power to the display touch drive circuit; the control method further includes a power supply control step;
  • the power supply control step includes:
  • the power supply control circuit controls the communication between the display power supply terminal and the voltage input terminal;
  • the power supply control circuit controls the communication between the touch power supply terminal and the voltage input terminal.
  • the power supply control circuit includes a voltage divider subcircuit, a signal generation subcircuit and a power supply control subcircuit;
  • the power supply control step specifically includes:
  • the voltage divider sub-circuit divides the display power supply voltage to generate and output the display working voltage through the display working voltage terminal;
  • the signal generating sub-circuit generates and outputs a control signal through the control signal output terminal according to the display operating voltage, and when the display operating voltage is greater than a first predetermined voltage, the signal generating sub-circuit controls the control signal is a first voltage signal, and when the display operating voltage is less than the first predetermined voltage, the signal generating sub-circuit controls the control signal to be a second voltage signal;
  • the power supply control sub-circuit controls the communication between the display power supply terminal and the voltage input terminal, and when the control signal is a second voltage signal, the power supply control The sub-circuit controls the communication between the touch power supply terminal and the voltage input terminal.
  • the display touch device further includes a system terminal; the control method further includes:
  • the touch operation processing circuit After the touch operation processing circuit detects a touch event on the display panel, the touch operation processing circuit provides a wake-up signal to the system end;
  • the system end After the system end receives the wake-up signal, the system end controls the display touch driving circuit to perform display driving.
  • the display touch device further includes a gate drive module; the control method further includes:
  • the touch operation processing circuit When the touch operation processing circuit detects that the display touch device is in a touch-only detection state, the touch operation processing circuit provides a discharge control signal to the gate driving module, so that the gate driving module controls the The multi-row grid lines are turned on;
  • the touch operation processing circuit After the touch operation processing circuit provides a discharge control signal to the gate driving module, the touch operation processing circuit provides the first touch enable signal to the display touch drive circuit.
  • the display touch device further includes a data driver, and the display panel further includes a plurality of columns of data lines; the control method further includes:
  • the touch operation processing circuit When providing a discharge control signal to the gate driving module, the touch operation processing circuit provides a data driving control signal to the data driver, so that the data driver provides a common electrode voltage signal to the data line.
  • the display touch device further includes a timing controller; the control method further includes:
  • the timing controller stops outputting a second touch enable signal to the touch operation processing circuit
  • the touch operation processing circuit determines that the display touch device is in a touch detection only state.
  • FIG. 1 is a structural diagram of a display touch device according to at least one embodiment of the present disclosure
  • FIG. 2 is a structural diagram of a display touch device according to at least one embodiment of the present disclosure
  • FIG. 3 is a structural diagram of a display touch device according to at least one embodiment of the present disclosure.
  • FIG. 4 is a structural diagram of a display touch device according to at least one embodiment of the present disclosure.
  • FIG. 5 is a working sequence diagram of at least one embodiment of the display touch device shown in FIG. 4 of the present disclosure
  • FIG. 6 is a structural diagram of a display touch device according to at least one embodiment of the present disclosure.
  • FIG. 7 is a structural diagram of a display touch device according to at least one embodiment of the present disclosure.
  • FIG. 8 is a structural diagram of a display touch device according to at least one embodiment of the present disclosure.
  • FIG. 9 is a structural diagram of a display touch device according to at least one embodiment of the present disclosure.
  • FIG. 10 is a working sequence diagram of at least one embodiment of the display touch device shown in FIG. 9 of the present disclosure.
  • FIG. 11 is a structural diagram of a display touch device according to at least one embodiment of the present disclosure.
  • FIG. 12 is a structural diagram of a display touch device according to at least one embodiment of the present disclosure.
  • FIG. 13 is a structural diagram of a display touch device according to at least one embodiment of the present disclosure.
  • 14A , 14B, 14C and 14D are circuit diagrams of at least one embodiment of a step-down circuit in a display touch device according to the present disclosure
  • FIG. 15 is a circuit diagram of at least one embodiment of a step-down circuit in a display touch device according to the present disclosure.
  • 16A is a circuit diagram of a portion of a power management integrated circuit in a display touch device according to at least one embodiment of the present disclosure
  • 16B is a circuit diagram of a portion of a power management integrated circuit in a display touch device according to at least one embodiment of the present disclosure
  • 16C is a circuit diagram of a portion of a power management integrated circuit in a display touch device according to at least one embodiment of the present disclosure
  • FIG. 16D is a schematic structural diagram of IC 401 in FIGS. 16A , 16B and 16C;
  • 17A is a structural diagram of an MCU (Micro Control Unit) chip IC601 used in at least one embodiment of the touch operation processing circuit in the display touch device according to at least one embodiment of the present disclosure;
  • MCU Micro Control Unit
  • 17B is a structural diagram of a portion of at least one embodiment of a touch operation processing circuit in a display touch device according to at least one embodiment of the present disclosure
  • 17C is a structural diagram of a part of at least one embodiment of a touch operation processing circuit in a display touch device according to at least one embodiment of the present disclosure.
  • the transistors used in all the embodiments of the present disclosure may be triodes, thin film transistors, field effect transistors, or other devices with the same characteristics.
  • one pole is called the first pole, and the other pole is called the second pole.
  • control electrode when the transistor is a triode, the control electrode may be the base electrode, the first electrode may be the collector electrode, and the second electrode may be the emitter electrode; or the control electrode may be the base electrode electrode, the first electrode can be an emitter electrode, and the second electrode can be a collector electrode.
  • the control electrode when the transistor is a thin film transistor or a field effect transistor, the control electrode may be a gate electrode, the first electrode may be a drain electrode, and the second electrode may be a source electrode;
  • the control electrode may be a gate electrode, the first electrode may be a source electrode, and the second electrode may be a drain electrode.
  • the display touch device includes a display panel, a display touch drive circuit, and a touch operation processing circuit, and the display panel includes a plurality of rows of gate lines;
  • the touch operation processing circuit is electrically connected to the display touch drive circuit, and is configured to provide a first touch enable to the display touch drive circuit when it is detected that the display touch device is in a touch-only detection state signal to control the display touch driving circuit to perform touch detection.
  • the display touch device and the control method according to the embodiment of the present disclosure can conveniently perform touch detection when the display touch device is in a touch detection only state , so that when the display touch device is in the sleep mode (the display function of the display touch device is turned off and the power consumption is low), the system can be woken up by using the touch function by clicking on the screen.
  • the display touch device when the display touch device is in a touch-only detection state, the display touch device is in a sleep mode, and the display function of the display touch device is turned off at this time to reduce power consumption.
  • the display touch device includes a display panel, a gate driving module 11 , a display touch driving circuit 12 and a touch operation processing circuit 13 , and the display panel includes a multi-row gate Wire;
  • the touch operation processing circuit 13 is electrically connected to the display touch drive circuit 12, and is configured to provide a first touch to the display touch drive circuit 12 when it is detected that the display touch device is in a touch-only detection state.
  • a control enable signal is used to control the display touch driving circuit 12 to perform touch detection.
  • the touch operation processing circuit 13 When the display touch device according to at least one embodiment of the present disclosure is in operation, when the touch operation processing circuit 13 detects that the display touch device is in a touch-only detection state, the touch operation processing circuit 13 reports to the display
  • the touch driving circuit 12 provides a first touch enable signal to control the display touch driving circuit 12 to perform touch detection.
  • At least one embodiment of the present disclosure can conveniently perform touch detection when the display touch device is in a touch detection only state, so as to facilitate the display touch device in a sleep mode (when the display function of the display touch device is turned off) , low power consumption), you can use the touch function to wake up the system by tapping the screen.
  • the touch operation processing circuit 13 is further electrically connected to the gate driving module 11 for detecting that the display touch device is in a touch-only mode.
  • a discharge control signal is provided to the gate driving module 11 , so that the gate driving module 11 controls the plurality of rows of gate lines to be turned on, and the discharge control signal is provided to the gate driving module 11
  • a first touch enable signal is provided to the display touch drive circuit 12 .
  • the touch operation processing circuit 13 When the display touch device according to at least one embodiment of the present disclosure is in operation, when the touch operation processing circuit 13 detects that the display touch device is in a touch detection only state, the touch operation processing circuit 13 drives the gate The module 11 provides a discharge control signal to control all gate lines included in the display panel to be turned on for discharging, and then the touch operation processing circuit 13 provides the display touch drive circuit 12 with a first touch control signal.
  • the power signal is used to control the display touch drive circuit 12 to perform touch detection, so as to ensure that when the display touch device resumes the display function again, no abnormal display phenomena (for example, flicker, afterimage, etc.) will occur due to inability to discharge. ).
  • the touch operation processing circuit when a touch operation processing circuit provides a first touch enable signal to the display touch driving circuit, the touch operation processing circuit can stop providing discharge to the gate driving module control signal, the gate line is turned off at this time, but not limited to this.
  • the display panel may be a liquid crystal display panel, but not limited thereto.
  • the touch display device further includes a data driver 20 , and the display panel further includes a plurality of columns of data lines; the data driver 20 is connected to the data lines. an electrical connection for providing corresponding data voltages to the data lines;
  • the touch operation processing circuit 13 is also electrically connected to the data driver 20, and is further configured to provide a data driving control signal to the data driver 20 when a discharge control signal is provided to the gate driving module 11, so that the The data driver 20 provides the common electrode voltage signal to the data line, so that the potential of the pixel electrode in the pixel circuit included in the display panel is the common electrode voltage, so that when the display touch device resumes the display function again, display abnormality will not occur. .
  • the display touch driving circuit 12 can provide touch driving signals to the touch driving electrodes included in the display panel, and receive touch sensing signals fed back by the touch sensing electrodes included in the display panel.
  • the touch sensing signal is used to determine whether there is a touch event.
  • the touch driving electrodes and the touch sensing electrodes may be the same touch electrodes, but not limited thereto.
  • the common electrodes may be multiplexed as touch electrodes, but not limited thereto.
  • the gate driving module may include a level conversion circuit 91 and a gate drive circuit 92;
  • the level conversion circuit 91 is electrically connected to the touch operation processing circuit 13 and the display touch drive circuit 12 respectively;
  • the touch operation processing circuit 13 is configured to provide a discharge control signal to the level conversion circuit 91 when it is detected that the display touch device is in a touch-only detection state;
  • the level conversion circuit 91 provides a gate line opening control signal to the gate driving circuit 92 through the display touch driving circuit 12 according to the discharge control signal, so that the gate driving circuit 92
  • the gate line opening control signal controls all row gate lines included in the display panel to be turned on.
  • the gate driving circuit may be disposed on the array substrate included in the display panel, but is not limited thereto.
  • the display panel when the display panel is a liquid crystal display panel, the display panel may include multiple rows of gate lines, multiple columns of data lines, multiple rows and multiple columns of pixel circuits, and multiple columns of touch signal lines;
  • the pixel circuit of the mth row and the nth column may include a transistor of the mth row and the nth column and a pixel electrode of the mth row and the nth column; both m and n are positive integers;
  • the control electrode of the transistor in the mth row and the nth column is electrically connected to the gate line of the mth row, the first electrode of the transistor in the mth row and the nth column is electrically connected with the data line of the nth column, and the second electrode of the transistor in the mth row and the nth column is electrically connected is electrically connected to the pixel electrode of the mth row and the nth column;
  • the plurality of columns of touch signal lines are all electrically connected to the display touch driving circuit 12 for receiving touch driving signals from the display touch driving circuit 12 and feeding back corresponding touch sensing signals.
  • the opening of the gate line of the m th row refers to that the gate line of the m th row provides the gate drive signal of the m th row for the control electrodes of the transistors of the m th row and the n th column, so that the m th row is The row and nth column transistors are turned on, so that the pixel electrode of the mth row and the nth column communicates with the data line of the nth column.
  • the gate line of the mth row is turned on means that the gate line of the mth row provides a high voltage signal to the transistors of the mth row and the nth column.
  • control electrode so that the transistors of the mth row and the nth column are turned on;
  • the opening of the gate line of the mth row means: the gate of the mth row
  • the line provides a low voltage signal to the gates of the transistors in the mth row and the nth column to turn on the mth row and nth column transistors.
  • the display touch device may further include a timing controller 40 ;
  • the timing controller 40 is configured to stop outputting the second touch enable signal to the touch operation processing circuit 13 when the display touch device is in the touch detection state only;
  • the touch operation processing circuit 13 is electrically connected to the timing controller 40, and is used to determine that the display touch device is in a touch-only mode when it is detected that the timing controller 40 stops outputting the second touch enable signal. control detection status.
  • the timing controller 40 will provide a second touch enable signal to the touch operation processing circuit 13, and when there is no front-end display signal input At this time, the display part is turned off and the touch function is retained. At this time, the timing controller 40 does not provide the second touch enable signal to the touch operation processing circuit 13.
  • the touch operation processing circuit 13 detects that the timing controller 40
  • the output of the second touch enable signal is stopped, it can be determined that the display touch device is in a touch detection only state.
  • the touch operation processing circuit 13 may provide a discharge control signal X1 to the gate driving module, and the touch operation processing circuit 13 may provide the display touch driving circuit 12 with a first touch
  • the timing controller 40 may provide a second touch enable signal Vs2 to the touch operation processing circuit 13 when the control enable signal Vs1 is used;
  • FIG. 5 is a waveform diagram of X1 , Vs1 and Vs2 .
  • S2 outputs a second touch enable signal
  • the touch operation processing circuit 13 At the beginning of the screen-off touch stage t20, the touch operation processing circuit 13 outputs a discharge control signal X1, and after that, the touch operation processing circuit 13 outputs a first touch enable signal Vs1;
  • the display touch device In the screen-off touch stage t20, the display touch device is in a state of touch detection only, no display signal is input at the front end, and only touch detection can be performed.
  • the display touch device when the potential of the first touch enable signal is a low voltage, the display touch device can perform touch detection, and when the potential of the second touch enable signal is a low voltage , the display touch device can perform touch detection, and when the potential of the discharge control signal is a low voltage, the gate driving module 11 can control the multiple rows of gate lines to be turned on.
  • the display touch device may include a touch operation processing circuit, a display touch drive circuit, a TCON (Timing Controller), and a system terminal;
  • the system terminal When the touch display device is normally performing touch display, the system terminal provides a display signal to the TCON, and the display power supply terminal G1 supplies power to the TCON, and the touch power supply terminal G2 supplies power to the touch operation processing circuit.
  • system end is a board provided by a complete machine factory with a windows operating system.
  • the display touch driving circuit 12 provides touch driving signals to the touch electrodes through the touch signal lines, and receives feedback from the touch signal lines touch sensor signal.
  • the display touch device described in at least one embodiment of the present disclosure may further include a power supply control circuit 61 , a display power supply terminal G1 , a touch control power supply terminal G2 and power management module 62; the power management module 62 is used for supplying power to the gate driving module 11 and the display touch driving circuit 12 according to the power supply voltage input by its voltage input terminal P1 ;
  • the power supply control circuit 61 is respectively electrically connected with the display power supply terminal G1, the touch power supply terminal G2 and the power management module 62, and is used for controlling the display power supply terminal G1 when the display power supply terminal G1 provides the display power supply voltage.
  • the display power supply terminal G1 is communicated with the voltage input terminal P1, and is used to control the touch control when the display power supply terminal G1 does not provide a display power supply voltage and the touch power supply terminal G2 provides a touch power supply voltage
  • the power supply terminal G2 communicates with the voltage input terminal P1.
  • the display power supply terminal G1 when the display power supply terminal G1 provides the display power supply voltage, the display power supply terminal G1 supplies power to the gate driving module and the display touch driving circuit 12 , and when the display power supply terminal G1 supplies power to the gate driving module and the display touch driving circuit 12
  • the touch power supply terminal G2 supplies power for the gate driving module and the display touch driving circuit 12, so as to ensure that the display touch device can The touch detection operation is performed normally.
  • the power management module may include a power management integrated circuit and a touch integrated circuit
  • the gate drive module includes a level conversion circuit and a gate drive circuit
  • the power management integrated circuit provides a voltage signal for the touch integrated circuit, and the voltage signal may include a low voltage signal VGL and a common electrode voltage signal VCOM, but is not limited thereto;
  • the touch integrated circuit is used for providing a first modulation voltage signal VCOM_M and a second modulation voltage signal VGL_M to the display touch driving circuit 12;
  • VCOM_M is a voltage signal obtained by superimposing a pulse signal on the basis of VCOM
  • VGL_M is a voltage signal obtained by adding a pulse signal on the basis of VGL, but not limited thereto.
  • the power management integrated circuit is also used to provide a working voltage for the display touch driving circuit 12;
  • the level conversion circuit is respectively electrically connected with the touch operation processing circuit and the display touch drive circuit;
  • the touch operation processing circuit is configured to provide a discharge control signal to the level conversion circuit when it is detected that the display touch device is in a touch-only detection state;
  • the level conversion circuit provides a gate line open control signal to the gate drive circuit through the display touch drive circuit according to the discharge control signal, so that the gate drive circuit controls the gate line open according to the gate line
  • the signal controls all the row gate lines included in the display panel to be turned on.
  • the gate driving circuit may be disposed on the array substrate included in the display panel, but is not limited thereto.
  • the power supply control circuit may include a voltage divider sub-circuit 71, a signal generation sub-circuit 72 and a power supply control sub-circuit 73;
  • the voltage dividing sub-circuit 71 is electrically connected to the display power supply terminal G1 and the signal generating sub-circuit 72 respectively, and is used to divide the display power supply voltage when the display power supply terminal G1 provides the display power supply voltage. , to generate and output the display working voltage through the display working voltage terminal G3;
  • the signal generating sub-circuit 72 is respectively electrically connected to the display working voltage terminal G3 and the control signal output terminal G4, and is used for generating and outputting a control signal through the control signal output terminal G4 according to the display working voltage.
  • the control signal is controlled to be a first voltage signal
  • the control signal is controlled to be a second voltage signal
  • the power supply control sub-circuit 73 is respectively electrically connected to the control signal output terminal G4, the display power supply terminal G1, the touch power supply terminal G2 and the voltage input terminal P1, and is used for when the control signal is the first power supply terminal G1.
  • the control signal is a second voltage signal
  • the voltage dividing sub-circuit 71 divides the display power supply voltage to generate a display working voltage
  • the signal generating sub-circuit 72 controls and generates a corresponding display working voltage according to the display working voltage.
  • the power supply control sub-circuit 73 controls the display voltage terminal G1 to be connected to the voltage input terminal P1 under the control of the control signal, or controls the touch power supply terminal G2 to be connected to the voltage input terminal P1.
  • the signal generating sub-circuit may be integrated into the touch operation processing circuit.
  • the first voltage signal is a low voltage signal
  • the second voltage signal is a high voltage signal
  • the first voltage signal is a high voltage signal
  • the second voltage signal is a low voltage signal
  • the power supply control sub-circuit may include a first switch sub-circuit 81 and a second switch sub-circuit 82 , the first inverting sub-circuit 84 and the second inverting sub-circuit 83;
  • the first inverting sub-circuit 84 is respectively electrically connected to the control signal output terminal G4, the control terminal of the second switching sub-circuit 82 and the second inverting sub-circuit 83, and is used for the control signal performing inversion to obtain a first inversion voltage signal, and providing the first inversion voltage signal to the control terminal of the second switch sub-circuit 82 and the second inversion sub-circuit 83;
  • the second inversion sub-circuit 83 is electrically connected to the control terminal of the first switch sub-circuit 81, and is used to invert the first inversion voltage signal to obtain a second inversion voltage signal, and convert the the second inversion voltage signal is provided to the control terminal of the first switch sub-circuit 81;
  • the first switch sub-circuit 81 is electrically connected to the display power supply terminal G1 and the voltage input terminal P1 respectively, and is used to control the display power supply terminal when the second inversion voltage signal is the first voltage signal G1 is connected with the voltage input terminal P1, and when the second inverted voltage signal is a second voltage signal, the control is to disconnect the connection between the display power supply terminal G1 and the voltage input terminal P1;
  • the second switch sub-circuit 82 is electrically connected to the touch power supply terminal G2 and the voltage input terminal P1 respectively, and is used for controlling the touch control when the first inversion voltage signal is the first voltage signal
  • the power supply terminal G2 is connected with the voltage input terminal P1, and when the first inversion voltage signal is the second voltage signal, the control between the touch power supply terminal G2 and the voltage input terminal P1 is disconnected Connection.
  • the power supply control sub-circuit may include a first switch sub-circuit 81, a second switch sub-circuit 82, a first inverting sub-circuit 84 and a second inverting sub-circuit 83; the first inverting sub-circuit 83
  • the circuit 84 inverts the control signal to obtain a first inversion voltage signal
  • the second inversion sub-circuit 83 inverts the first inversion voltage signal to obtain a second inversion voltage signal
  • the first switch sub-circuit 81 controls on or off the connection between the display power supply terminal G1 and the voltage input terminal P1 according to the second inverse voltage signal; the second switch sub-circuit 8. Under the control of the first inversion voltage signal, the connection between the touch power supply terminal G2 and the voltage input terminal P1 is controlled to be turned on or off.
  • the first switch sub-circuit includes a first switch transistor and a second switch transistor;
  • Both the control electrode of the first switching transistor and the control electrode of the second switching transistor are electrically connected to the control terminal of the first switching sub-circuit;
  • the first pole of the first switch transistor is electrically connected to the display power supply terminal, and the second terminal of the first switch transistor is electrically connected to the first pole of the second switch transistor;
  • the second pole of the second switching transistor is electrically connected to the voltage input terminal.
  • the second switch sub-circuit includes a third switch transistor
  • the first pole of the third switch transistor is electrically connected to the touch power supply terminal, and the second pole of the third switch transistor is electrically connected to the voltage input terminal.
  • the first inverting sub-circuit includes a first inverting transistor and a first resistor
  • the control electrode of the first inversion transistor is electrically connected to the control signal output end, the first electrode of the first inversion transistor is electrically connected to the control end of the second switch sub-circuit, and the first inversion transistor is electrically connected to the control end of the second switch sub-circuit.
  • the second pole of the phase transistor is electrically connected to the third voltage terminal;
  • the first end of the first resistor is electrically connected to the control end of the second switch sub-circuit, and the second end of the first resistor is electrically connected to the touch power supply end.
  • the second inverting sub-circuit includes a second inverting transistor and a second resistor
  • the control electrode of the second inversion transistor is electrically connected to the control terminal of the second switch sub-circuit, the first electrode of the second inversion transistor is electrically connected to the touch power supply terminal, and the second inversion transistor is electrically connected to the touch power supply terminal.
  • the second electrode of the phase transistor is electrically connected to the third voltage terminal through the second resistor.
  • the touch power supply terminal G2 when the touch display device can perform touch detection, the touch power supply terminal G2 always outputs a touch power supply voltage.
  • the third voltage terminal may be a ground terminal or a low voltage terminal, but is not limited thereto.
  • the display touch device described in at least one embodiment of the present disclosure may further include a control diode
  • the anode of the control diode is electrically connected to the display power supply terminal, and the cathode of the control diode is electrically connected to the touch power supply terminal;
  • the control diode ensures the power supply current of the touch power supply terminal when the display touch device is in normal operation, and simultaneously prevents the current from refilling when the display touch device sleeps.
  • the timing controller may not work, and the display touch driving circuit 12 works.
  • the display touch device includes a display panel P0, a gate driving module, a display touch driving circuit 12, a touch operation processing circuit 13, a timing controller 40, and a power supply control circuit , display power supply terminal G1, touch power supply terminal G2, power management module, gamma reference voltage generation circuit 90, first step-down circuit B1, second step-down circuit B2, third step-down circuit B3, fourth step-down circuit circuit B4, data driver 20 and system terminal 130;
  • the display panel P0 includes multiple rows of gate lines;
  • the gate drive module includes a level conversion circuit 91 and a gate drive circuit 92;
  • the level conversion circuit 91 is electrically connected to the touch operation processing circuit 13 and the display touch drive circuit 12 respectively;
  • the touch operation processing circuit 13 is configured to provide a discharge control signal to the level conversion circuit 91 when it is detected that the display touch device is in a touch-only detection state;
  • the level conversion circuit 91 provides a gate line opening control signal to the gate driving circuit 92 through the display touch driving circuit 12 according to the discharge control signal, so that the gate driving circuit 92 a gate line opening control signal to control all row gate lines included in the display panel to be turned on;
  • the gate driving circuit 92 is disposed on the array substrate included in the display panel P0;
  • the touch operation processing circuit 13 is further configured to provide a driving voltage VDD for the level conversion circuit 91;
  • the timing controller 40 is electrically connected to the touch operation processing circuit 13 ; when the display touch device is in a normal display touch state, the timing controller 40 provides a second touch operation to the touch operation processing circuit 13 .
  • control enable signal Vs2 the touch operation processing circuit 13 provides Vs2 to the display touch drive circuit 12; and when there is no front-end display signal input, the display part is turned off, and the touch function is retained.
  • the timing controller 40 The second touch enable signal Vs2 is not provided to the touch operation processing circuit 13.
  • the touch operation processing circuit 13 detects that the timing controller 40 stops outputting the second touch enable signal Vs2, it can determine the The display touch device is in a touch-only detection state;
  • the timing controller 40 is configured to provide the level conversion circuit 91 with a start signal STV, a clock signal CLK and a driving voltage VDD;
  • the touch operation processing circuit 13 is electrically connected to the gate driving module and the display touch driving circuit 12 respectively, and is used for sending a signal to the gate when it is detected that the display touch device is in a touch detection only state.
  • the gate driving module provides a discharge control signal, so that the gate driving module controls the gate lines of the plurality of rows to open, and after providing the discharge control signal to the gate driving module, the display touch driving module is provided with a discharge control signal.
  • the circuit 12 provides a first touch enable signal to control the display touch drive circuit 12 to perform touch detection;
  • the touch operation processing circuit 13 is also electrically connected to the level conversion circuit 91 for providing a power supply voltage for the level conversion circuit 91;
  • the display touch drive circuit 12 receives the touch enable signal Vs0; the touch operation processing circuit 13 provides the touch enable signal Vs0 to the touch integrated circuit 622;
  • the power management module includes the power management integrated circuit 621 and the touch integrated circuit 622;
  • the power management integrated circuit 621 provides a voltage signal for the touch integrated circuit 622, and the voltage signal may include a low voltage signal VGL and a common electrode voltage signal VCOM;
  • the touch integrated circuit 622 is used for providing a first modulation voltage signal VCOM_M and a second modulation voltage signal VGL_M to the display touch driving circuit 12 ; the power management integrated circuit 621 is also used for driving the display touch control The circuit 12 provides the working voltage;
  • the touch integrated circuit 622 is used for providing VCOM_M for the display touch driving circuit 12 , and the touch integrated circuit 622 is used for providing VGL_M for the level conversion circuit 91 ;
  • the power management integrated circuit 621 is used for supplying power to the gamma reference voltage generating circuit 90, and the gamma reference voltage generating circuit 90 is electrically connected to the display touch driving circuit 12 to serve as the display touch driving circuit 12 Provide gamma reference voltage;
  • the power supply control circuit 61 includes a voltage divider sub-circuit 71, a signal generation sub-circuit and a power supply control sub-circuit;
  • the voltage dividing sub-circuit 71 includes a first voltage dividing resistor R1 and a second voltage dividing resistor R2, wherein,
  • the first end of R1 is electrically connected to the display power supply end G1, the second end of R1 is electrically connected to the first end of R2, and the second end of R2 is electrically connected to the ground terminal GND;
  • the second end of R1 is electrically connected to the display working voltage end G3;
  • the signal generation sub-circuit is integrated in the touch operation processing circuit 13;
  • the signal generating subcircuit is electrically connected to the display working voltage terminal G3 and the control signal output terminal G4 respectively, and is used for generating and outputting a control signal through the control signal output terminal G4 according to the display working voltage.
  • the control signal is controlled to be the first voltage signal
  • the control signal is controlled to be the second voltage signal
  • the power supply control sub-circuit includes a first switch sub-circuit 81, a second switch sub-circuit 82, a first inverting sub-circuit 84 and a second inverting sub-circuit 83;
  • the first inverting sub-circuit 84 is respectively electrically connected to the control signal output terminal G4, the control terminal of the second switching sub-circuit 82 and the second inverting sub-circuit 83, and is used for the control signal performing inversion to obtain a first inversion voltage signal, and providing the first inversion voltage signal to the control terminal of the second switch sub-circuit 82 and the second inversion sub-circuit 83;
  • the second inversion sub-circuit 83 is electrically connected to the control terminal of the first switch sub-circuit 81, and is used to invert the first inversion voltage signal to obtain a second inversion voltage signal, and convert the the second inversion voltage signal is provided to the control terminal of the first switch sub-circuit 81;
  • the first switch sub-circuit 81 is electrically connected to the display power supply terminal G1 and the voltage input terminal P1 respectively, and is used to control the display power supply terminal when the second inversion voltage signal is the first voltage signal G1 is connected with the voltage input terminal P1, and when the second inverted voltage signal is a second voltage signal, the control is to disconnect the connection between the display power supply terminal G1 and the voltage input terminal P1;
  • the second switch sub-circuit 82 is electrically connected to the touch power supply terminal G2 and the voltage input terminal P2 respectively, and is used for controlling the touch control when the first inversion voltage signal is the first voltage signal
  • the power supply terminal G2 is connected with the voltage input terminal P1, and when the first inversion voltage signal is the second voltage signal, the control between the touch power supply terminal G2 and the voltage input terminal P1 is disconnected Connection;
  • the first step-down circuit B1 is electrically connected to the display power supply terminal G1 and the timing controller 40, respectively, and is used to step down the display power supply voltage and provide the step-down display power supply voltage to the timing sequence. controller 40;
  • the second step-down circuit B2 is electrically connected to the display power supply terminal G1 and the timing controller 40 respectively, and is used to step down the display power supply voltage and provide the step-down display power supply voltage to the timing sequence. controller 40;
  • the third step-down circuit B3 is electrically connected to the touch power supply terminal G2 and the touch operation processing circuit 13 respectively, and is used to step down the touch power supply voltage and provide the step-down touch power supply voltage. to the touch operation processing circuit 13;
  • the fourth step-down circuit B4 is electrically connected to the touch power supply terminal G2 and the touch operation processing circuit 13 respectively, and is used to step down the touch power supply voltage and provide the step-down touch power supply voltage. to the touch operation processing circuit 13;
  • the data driver 20 is electrically connected to the data lines included in the display panel P0, and is used for providing corresponding data voltages for the data lines;
  • the touch operation processing circuit 13 is also electrically connected to the data driver 20 for providing a data driving control signal to the data driver 20 when a discharge control signal is provided to the level conversion circuit 91, so that the data driver 20 providing a common electrode voltage signal to the data line;
  • the system terminal 130 is electrically connected to the timing controller 40, and is used for providing a display signal to the timing controller 40 from the system terminal when the touch display device normally performs touch display;
  • the system terminal 130 is further electrically connected to the touch operation processing circuit 13 and the display touch driving circuit 12, respectively.
  • the touch operation processing circuit 13 is further configured to provide a wake-up signal to the system terminal 130 after detecting a touch event on the display panel;
  • the system terminal 130 is configured to control the display touch driving circuit 12 to perform display driving after receiving the wake-up signal. .
  • the first step-down circuit B1, the second step-down circuit B2, the third step-down circuit B3 and the fourth step-down circuit B4 all include a single step-down Therefore, two step-down circuits need to be used between the display power supply terminal G1 and the timing controller 40, and two step-down circuits need to be used between the touch power supply terminal G2 and the touch operation processing circuit 13.
  • the first inverting sub-circuit 84 inverts the control signal to obtain a first inverting voltage signal; the second inverting sub-circuit 84 inverts the control signal.
  • the circuit 83 inverts the first inversion voltage signal to obtain a second inversion voltage signal; the first switch sub-circuit 81 is used for controlling the second inversion voltage signal when the second inversion voltage signal is a low voltage signal.
  • the second switch sub-circuit 82 is used to control the connection between the touch power supply terminal G2 and the voltage input terminal P1 when the first inversion voltage signal is a low voltage signal, and when all the When the first inversion voltage signal is a high voltage signal, control to disconnect the connection between the touch power supply terminal G2 and the voltage input terminal P1;
  • the control signal is a low voltage signal
  • the first inversion voltage signal is a high voltage signal
  • the second inversion voltage signal is a low voltage signal
  • the second switch sub-circuit 82 controls to turn off the
  • the first switch sub-circuit 81 controls the connection between the display power supply terminal G1 and the voltage input terminal P1;
  • the control signal is a high voltage signal; the first inversion voltage signal is a low voltage signal, the second inversion voltage signal is a high voltage signal, and the second switch sub-circuit 82 controls the conduction of all
  • the first switch sub-circuit 81 controls the disconnection between the display power supply terminal G1 and the voltage input terminal P1.
  • FIG. 10 is an operation timing diagram of at least one embodiment of the display touch device shown in FIG. 9 .
  • the first display touch stage t11 and the second display touch stage t12 are normal working time periods.
  • the display touch device is in a normal display touch state, and the display touch device is in a normal display touch state.
  • the device can perform detection and touch detection;
  • the screen-off touch stage t20 is a touch detection-only time period, and in the touch-only detection time period, the display touch device is in a touch-only detection state;
  • at t11 and t12 The sequencer works, and at t20, the sequencer may not work, but not limited thereto.
  • the signal labeled Vs2 is the second touch enable signal
  • the signal labeled Vs0 is the touch enable signal received by the display touch drive circuit 12
  • the signal labeled Vg1 is the display power supply provided by G1 Voltage
  • marked as Vg3 is the display working voltage output by the display working voltage terminal G3, marked as the control signal Vg4 output by the control signal terminal G4
  • marked as Vp1 is the potential of P1
  • marked as VCOM_M is the first modulation voltage signal
  • VGL_M is the second modulation voltage signal.
  • the display touch device described in at least one embodiment of the present disclosure further includes a control diode D1 , a third resistor R3 , and a fourth resistor R4, the fifth resistor R5 and the first capacitor C1;
  • R3 is connected between the voltage input terminal P1 and the power management integrated circuit 621;
  • the first end of R4 is electrically connected to the control signal output end G4, and the second end of R4 is electrically connected to the ground terminal GND;
  • the first end of R5 is electrically connected to the third step-down circuit B3 (the first end of R5 is electrically connected to the terminal of B3 that provides the step-down touch supply voltage, and B3 provides the step-down touch supply voltage through this terminal.
  • the power supply voltage is supplied to the touch operation processing circuit 13), and the second end of R5 is electrically connected to the display touch drive circuit 12;
  • the first terminal of C1 is electrically connected to the touch operation processing circuit 13, and the second terminal of C1 is connected to the ground terminal GND;
  • the anode of D1 is electrically connected to the display power supply terminal G1, and the cathode of D1 is electrically connected to the touch power supply terminal G2;
  • the first switching sub-circuit includes a first switching transistor M1 and a second switching transistor M2; the second switching sub-circuit includes a third switching transistor M3; the first inverting sub-circuit includes a first inverting transistor M11 and a first resistor R11; the second inverting sub-circuit includes a second inverting transistor M12 and a second resistor R12;
  • the base of the first inversion transistor M11 is electrically connected to the control signal output terminal G4, the collector of the first inversion transistor M11 is electrically connected to the gate of M3, and the first inversion transistor M11 is electrically connected to the gate of M3.
  • the emitter is electrically connected to the ground terminal GND;
  • the first end of the first resistor R11 is electrically connected to the gate of M3, and the second end of the first resistor R11 is electrically connected to the touch power supply end G2;
  • the base of the second inversion transistor M12 is electrically connected to the gate of M3, the emitter of the second inversion transistor M12 is electrically connected to the touch power supply terminal G2, and the second inversion transistor M12 is electrically connected to the power supply terminal G2.
  • the collector is electrically connected to the ground terminal GND through the second resistor R12;
  • the gate of the first switching transistor M1 and the gate of the second switching transistor M2 are both electrically connected to the collector of M12;
  • the drain of the first switch transistor M1 is electrically connected to the display power supply terminal G1, and the source of the first switch transistor M1 is electrically connected to the source of the second switch transistor M2;
  • the drain of the second switching transistor M2 is electrically connected to the voltage input terminal P1;
  • the source of the third switch transistor M3 is electrically connected to the touch power supply terminal G2, and the drain of the third switch transistor M3 is electrically connected to the voltage input terminal P1;
  • M1, M2 and M3 are all PMOS transistors (P-type metal-oxide-semiconductor transistors), M11 is an npn-type triode, and M12 is a pnp-type triode, but not limited thereto.
  • M11 and M12 may be BJTs (Bipolar Junction Transistor, bipolar junction transistors), but not limited thereto.
  • the control signal is a low voltage signal
  • the first inversion voltage signal is a high voltage signal
  • the second inversion voltage signal is a low voltage signal
  • M11 is turned off
  • the potential of the gate of M3 is High voltage
  • M3 is turned off
  • P1 and G2 are disconnected
  • M12 is turned off
  • the potential of the gate of M1 is low voltage
  • M1 and M2 are both turned on, and P1 and G1 are connected
  • the control signal is a high voltage signal
  • the first inversion voltage signal is a low voltage signal
  • the second inversion voltage signal is a high voltage signal
  • M11 is turned on
  • the potential of M3 is a low voltage
  • M3 is turned on, and the connection between P1 and G2 is connected
  • M12 is turned on, the potential of the gate of M1 is a high voltage, M1 and M2 are turned off, and P1 and G1 are disconnected.
  • the display touch device according to at least one embodiment of the present disclosure further includes a control diode D1 , a third resistor R3 , the fourth resistor R4, the fifth resistor R5 and the first capacitor C1;
  • the anode of D1 is electrically connected to the display power supply terminal G1, and the cathode of D1 is electrically connected to the touch power supply terminal G2;
  • the first switching sub-circuit 81 includes a first switching transistor M1 and a second switching transistor M2; the second switching sub-circuit 82 includes a third switching transistor M3; the first inverting sub-circuit 84 includes a first inverting a transistor M11 and a first resistor R11; the second inverting sub-circuit 83 includes a second inverting transistor M12 and a second resistor R12;
  • the gate of the first inversion transistor M11 is electrically connected to the control signal output terminal G4, the drain of the first inversion transistor M11 is electrically connected to the gate of M3, and the The source is electrically connected to the ground terminal GND;
  • the first end of the first resistor R11 is electrically connected to the gate of M3, and the second end of the first resistor R11 is electrically connected to the touch power supply end G2;
  • the gate of the second inverting transistor M12 is electrically connected to the gate of M3, the source of the second inverting transistor M12 is electrically connected to the touch power supply terminal G2, and the second inverting transistor M12 has an electrical connection.
  • the drain is electrically connected to the ground terminal GND through the second resistor R12;
  • the gate of the first switching transistor M1 and the gate of the second switching transistor M2 are both electrically connected to the collector of M12;
  • the drain of the first switch transistor M1 is electrically connected to the display power supply terminal G1, and the source of the first switch transistor M1 is electrically connected to the source of the second switch transistor M2;
  • the drain of the second switching transistor M2 is electrically connected to the voltage input terminal P1;
  • the source of the third switch transistor M3 is electrically connected to the touch power supply terminal G2, and the drain of the third switch transistor M3 is electrically connected to the voltage input terminal P1;
  • M1, M2 and M3 are all PMOS transistors (P-type metal-oxide-semiconductor transistors), M11 is an NMOS transistor (N-type metal-oxide-semiconductor transistors), and M12 is a PMOS transistor, but not limited thereto.
  • the control signal is a low voltage signal
  • the first inversion voltage signal is a high voltage signal
  • the second inversion voltage signal is a low voltage signal
  • M11 is turned off
  • the potential of the gate of M3 is High voltage
  • M3 is turned off
  • P1 and G2 are disconnected
  • M12 is turned off, the potential of the gate of M1 is low voltage
  • M1 and M2 are both turned on, and P1 and G1 are connected
  • the control signal is a high voltage signal
  • the first inversion voltage signal is a low voltage signal
  • the second inversion voltage signal is a high voltage signal
  • M11 is turned on
  • the potential of M3 is a low voltage
  • M3 is turned on, and the connection between P1 and G2 is connected
  • M12 is turned on, the potential of the gate of M1 is a high voltage, M1 and M2 are turned off, and P1 and G1 are disconnected.
  • the display touch device may further include a system terminal
  • the touch operation processing circuit is further configured to provide a wake-up signal to the system end after detecting a touch event on the display panel;
  • the system end is configured to control the display touch driving circuit to perform display driving after receiving the wake-up signal.
  • the display touch device may further include a system end, and when the display touch device is in a touch detection only state, after the display panel is touched, the touch operation processing circuit sends a message to all The system end provides a wake-up signal, and the system end controls the display touch driving circuit to perform display driving, so that the display touch device returns to a normal display touch state.
  • the display touch device may further include a system terminal 130 ;
  • the touch operation processing circuit 13 is electrically connected to the system terminal 130, and is further configured to provide a wake-up signal to the system terminal 130 after detecting a touch event on the display panel;
  • the system terminal 130 is configured to control the display touch driving circuit 12 to perform display driving after receiving the wake-up signal.
  • the system terminal can be woken up by the touch power supply voltage and displayed again.
  • FIG. 14A, 14B, 14C, and 14D are circuit diagrams of at least one embodiment of a step-down circuit in a display touch device according to the present disclosure. At least one embodiment of the step-down circuit shown in FIG. 14A , FIG. 14B , FIG. 14C and FIG. 14D of the present invention adopts a single-circuit step-down IC (Integrated Circuit, integrated circuit).
  • IC Integrated Circuit, integrated circuit
  • At least one embodiment of the step-down circuit shown in FIG. 14A includes a first step-down integrated circuit IC301, a first step-down resistor R301, a second step-down resistor R302, a third step-down resistor R03, a fourth step-down resistor R304, a first step-down capacitor C301, a second step-down capacitor C302, a third step-down capacitor C303, a fourth step-down capacitor C304, a fifth step-down capacitor C305 and a first step-down inductor L301;
  • the first to eighth pins of IC301 are respectively: GND1 pin, EN pin, VIN pin, NC1 pin, LX pin, GND2 pin, FBVOUT pin, NC2 pin;
  • the first terminal of R301 is electrically connected to the first working voltage terminal VCC_5V, and the second terminal of R301 is electrically connected to the VIN terminal of IC301;
  • C301 is connected in parallel with C302;
  • R302 is connected in parallel with C303, and R303 is electrically connected between the FBVOUT pin of IC301 and the ground;
  • C304 is connected in parallel with C305, L301 is electrically connected to the LX pin of IC301, the first terminal of R304 is electrically connected to L301, and the second terminal of R304 is electrically connected to the first voltage output terminal TCON_D_1V8;
  • EN_1V8 is the first enable terminal.
  • At least one embodiment of the step-down circuit shown in FIG. 14B includes a second step-down integrated circuit IC302, a fifth step-down resistor R306, a sixth step-down resistor R307, a seventh step-down resistor R08, and an eighth step-down resistor R309 , the sixth step-down capacitor C306, the seventh step-down capacitor C307, the eighth step-down capacitor C308, the ninth step-down capacitor C309, the tenth step-down capacitor C310 and the second step-down inductor L302;
  • the first to eighth pins of IC302 are respectively: GND1 pin, EN pin, VIN pin, NC1 pin, LX pin, GND2 pin, FBVOUT pin, NC2 pin;
  • the first terminal of R306 is electrically connected to the first working voltage terminal VCC_5V, and the second terminal of R306 is electrically connected to the VIN terminal of IC302;
  • C306 is connected in parallel with C307;
  • R307 is connected in parallel with C308, and
  • R308 is electrically connected between the FBVOUT pin of IC302 and the ground;
  • C309 is connected in parallel with C310, L302 is electrically connected with the LX pin of IC302, the first end of R309 is electrically connected with L302, and the second end of R309 is electrically connected with the second voltage output end DVDD1V0;
  • EN_1V0 is the second enable terminal.
  • At least one embodiment of the step-down circuit shown in FIG. 14C includes a third step-down integrated circuit IC305, a ninth step-down resistor R323, a tenth step-down resistor R324, an eleventh step-down resistor R25, and a twelfth step-down resistor R324.
  • the first to eighth pins of IC305 are: GND1 pin, EN pin, VIN pin, NC1 pin, LX pin, GND2 pin, FBVOUT pin, NC2 pin;
  • the first terminal of R323 is electrically connected to the second working voltage terminal VUSB, and the second terminal of R323 is electrically connected to the VIN terminal of IC305;
  • C321 is connected in parallel with C322;
  • R324 is connected in parallel with C323, and R325 is electrically connected between the FBVOUT pin of IC305 and the ground;
  • C324 is connected in parallel with C325, L305 is electrically connected to the LX pin of IC305, the first terminal of R326 is electrically connected to L305, and the second terminal of R326 is electrically connected to the third voltage output terminal MDV3V3.
  • At least one embodiment of the step-down circuit shown in FIG. 14D includes a fourth step-down integrated circuit IC306, a thirteenth step-down resistor R327, a fourteenth step-down resistor R328, a fifteenth step-down resistor R29, and a sixteenth step-down resistor R327.
  • the first to eighth pins of IC306 are respectively: GND1 pin, EN pin, VIN pin, NC1 pin, LX pin, GND2 pin, FBVOUT pin, NC2 pin;
  • the first terminal of R327 is electrically connected to the second working voltage terminal VUSB, and the second terminal of R327 is electrically connected to the VIN terminal of IC306;
  • C326 is connected in parallel with C327;
  • R328 is connected in parallel with C328, and R329 is electrically connected between the FBVOUT pin of IC306 and the ground;
  • C329 is connected in parallel with C330, L306 is electrically connected to the LX pin of IC306, the first end of R330 is electrically connected to L306, and the second end of R330 is electrically connected to the fourth voltage output end MDV1V8;
  • the third working voltage terminal is labeled MDV3V3.
  • FIG. 15 is a circuit diagram of at least one embodiment of a step-down circuit in a display touch device according to the present disclosure.
  • the fifth step-down integrated circuit IC307 may be a DC conversion chip with a model of RT8020, but is not limited thereto.
  • IC 307 is a multi-channel step-down integrated circuit.
  • At least one embodiment of the step-down circuit shown in FIG. 15 includes a fifth step-down integrated circuit IC307, a seventeenth capacitor C17, an eighteenth capacitor C18, a nineteenth capacitor C19, a twentieth capacitor C20, and a fifth inductor L5 and the sixth inductor L6;
  • the first to twelfth pins of IC307 are respectively: VIN2 pin, LX2 pin, GND pin, FB1 pin, NC1 pin, EN1 pin, VIN1 pin, LX1 pin, GND pin pin, FB2 pin, NC2 pin, EN2 pin;
  • the first voltage input terminal V IN1 is electrically connected to the VIN1 pin of IC307;
  • C17 is electrically connected between the voltage input terminal VIN and the ground terminal GND, and the second voltage input terminal V IN2 is electrically connected to the VIN2 pin of IC307;
  • the first terminal of L6 is electrically connected to the first terminal of C18 and the fifth voltage output terminal VOUT1;
  • the second end of L6 is electrically connected to the LX1 pin of IC307, and the second end of C18 is electrically connected to the ground;
  • the first terminal of L5 is electrically connected to the LX2 pin of IC307, and the terminal of L5 is electrically connected to the sixth voltage output terminal VOUT2;
  • the first end of C19 is electrically connected to the ninth pin of IC307, and the second end of C19 is electrically connected to the VIN1 pin of IC307;
  • the first terminal of C20 is electrically connected to VOUT2, and the second terminal of C20 is electrically connected to the ground terminal.
  • FIG. 16A is a circuit diagram of a part of a power management integrated circuit in a display touch device according to at least one embodiment of the present disclosure
  • FIG. 16B is a circuit diagram of a part of a power management integrated circuit in a display touch device according to at least one embodiment of the present disclosure
  • Circuit diagram FIG. 16C is a circuit diagram of a part of the power management integrated circuit in the display touch device according to at least one embodiment of the present disclosure
  • FIG. 16A , FIG. 16B and FIG. 16C form a complete power management integrated circuit.
  • At least one embodiment of the power management integrated circuit adopts a PMIC (Power Management IC, power management integrated circuit) chip IC401;
  • the first to forty-ninth pins of IC401 are respectively: COMPB pin, VIN(VL) pin, VINB pin, PGNDB pin, LXB pin, LXB pin, SCL pin, SDA pin pin, RESET pin, GST pin, ONCLK pin, OFFCLK pin, EO pin, CLK1 pin, CLK2 pin, CLK3 pin, CLK4 pin, CLK5 pin, CLK6 pin, CLK7 pin, CLK8 pin, VST pin, DCHG pin, ODD pin, EVEN pin, VGL1 pin, VGL2 pin, RE pin, VGH2 pin, VGH1 pin, DRN2 pin, LXGH pin, PGNDGH pin pin, RNTC pin, COMPGH pin, RSET pin, VOM pin, REG pin, POS pin, DRN1 pin, AVDD pin, LX1 pin, LX2 pin, PGND pin, AGND pin, COMP pin, SS pin, UVLO pin, VCC pin, ET PAD pin.
  • At least one embodiment of the power management integrated circuit includes a first control resistor R401 , a second control resistor R402 , a third control resistor R403 , a fourth control resistor R404 , and a fifth control resistor R404 .
  • D402 and D403 are double bridge diodes
  • C410 is connected in parallel with R407
  • C411 is connected in parallel with R408, and R409 is connected between the VCOM pin of IC401 and the common electrode test terminal VCOM_TEST;
  • C411 is connected between the VCOM pin of IC401 and the NEG pin of IC401;
  • the VCOM pin of IC401 is connected to the power management common electrode voltage terminal VCOM_PMIC;
  • the first terminal of R410 is electrically connected to the fourth working voltage terminal AVDD
  • the second terminal of R410 is electrically connected to the first terminal of L404
  • the second terminal of L404 is electrically connected to the anode of D401
  • the first terminal of R413 is electrically connected to the cathode of D401. connected, the second end of R413 is connected to the high voltage signal VGH;
  • C418, CR19 and R414 are connected in parallel with each other; the first end of R414 is electrically connected to the ground, and the second end of R414 is connected to the low-voltage signal VGL;
  • C422, C423 and R416 are connected in parallel with each other; the first end of R417 and the second end of R417 are both electrically connected to the fifth working voltage end LVGL, and the first end of R415 and the second end of R415 are both connected to VGL;
  • C416 and C417 are connected in series with each other, and C420 and C421 are connected in series with each other;
  • the first pin of D402 is electrically connected to the VGL1 pin of IC401, the second pin of D402 is electrically connected to the ground, and the third pin of D402 is electrically connected to C417;
  • the first pin of D403 is electrically connected with the fifth working voltage terminal LVGL, the second pin of D403 is connected to the low-voltage signal VGL, and the third pin of D403 is electrically connected with C421;
  • C416 is electrically connected to the DRN1 pin of IC401, and C420 is electrically connected to the DRN2 pin of IC401;
  • C401 is connected in series with C402, the first end of R401 is electrically connected to the sixth working voltage terminal VCC, the second end of R401 is electrically connected to the first end of L401, and the second end of L402 is electrically connected to R402, C404 and C403 which are connected in series with each other ; C405, C406, C407, CR08 and R404 are connected in parallel with each other, the first end of R404 is electrically connected to the first end of R403, the first end of R403 is electrically connected to the seventh working voltage end AVDD201, the second end of R403 is electrically connected to the fourth The working voltage terminal AVDD is electrically connected; AVDD201 is electrically connected to the AVDD pin of IC401; C409 is connected in parallel with R406, the first end of C409 is electrically connected to the POS pin of IC401, and the second end of C409 is electrically connected to the ground; One end is electrically connected to the first end of C409, and the second
  • R418, R419 and R420 are connected in series with each other, the first end of R418 is electrically connected to the eighth operating voltage terminal VCC_5V_Alive, the second end of R418 is electrically connected to R419, the first end of C424 is electrically connected to the second end of R418, and the first end of C424 is electrically connected to the second end of R418. Both ends are grounded;
  • the first end of C425 is electrically connected to the COMP pin of IC401, and the second end of C425 is grounded;
  • the first end of R422 is electrically connected to the ninth working voltage end DV18;
  • R423, C429 and C430 are connected in parallel with each other, the first end of R423 is electrically connected with the second end of R422, and the second end of R423 is grounded;
  • L402 is connected in series with L403, L402 is electrically connected with the second end of R422, and L403 is electrically connected with the LCB pin of IC402;
  • the first terminal of R421 is electrically connected to the eighth operating voltage terminal VCC_5V_Alive, the second terminal of R421 is electrically connected to the COMPB pin of IC401, C426 and C427 are connected in parallel; the first terminal of C426 is grounded, and the second terminal of C426 is connected to VINB of IC401 pin electrical connection;
  • the first end of C428 is grounded, and the second end of C428 is electrically connected to the VIN (VL) pin of IC401;
  • the first end of R424 is electrically connected to the first control end P_SCL, and the second end of R424 is electrically connected to the SCL pin of IC401;
  • the first end of R425 is electrically connected to the second control end P_SDA, and the second end of R425 is electrically connected to the SDA pin of IC401;
  • the first end of R426 is electrically connected with the third control terminal ALL_H, and the second end of R426 is electrically connected with the ninth operating voltage terminal DV18;
  • FIG. 16D is a schematic structural diagram of the IC 401 in FIGS. 16A , 16B and 16C.
  • FIG. 17B is a structural diagram of at least one embodiment of a touch operation processing circuit in a display touch device according to at least one embodiment of the present disclosure
  • FIG. 17C is a touch display in the touch display device according to at least one embodiment of the present disclosure
  • Figure 17B and Figure 17C are a structural diagram of a part of at least one embodiment of the operation processing circuit to form a complete touch operation processing circuit.
  • FIG. 17A is a structural diagram of an MCU (Micro Control Unit) chip IC601 used in at least one embodiment of the touch operation processing circuit.
  • MCU Micro Control Unit
  • IC601 includes GPIOA0 pin, GPIOA1 pin, GPIOA2 pin, GPIOA3 pin, GPIOA4 pin, GPIOA5 pin, GPIOA6 pin, GPIOA7 pin, GPIOA8 pin, GPIOA9 pin, GPIOA10 pin pin, GPIOA11 pin, GPIOA12 pin, GPIOA13 pin, GPIOA14 pin, GPIOA15 pin, GPIOA16 pin, GPIOA17 pin, GPIOA18 pin, GPIOA19 pin, GPIOA20 pin, GPIOA21 pin, GPIOA22 pin, GPIOA23 pin, GPIOA24 pin, GPIOA25 pin, GPIOA26 pin, GPIOA27 pin, GPIOA28 pin, GPIOA29 pin, GPIOA30 pin, GPIOA31 pin, GPIOA32 pin, GPIOA33 pin, GPIOA34 pin, GPIOA35 pin pin, GPIOA36 pin, GPIOA37 pin, GPIOA38 pin, GPIOA39 pin, GPIOA10 pin pin,
  • At least one embodiment of the touch operation processing circuit includes an MCU chip IC601, a first processing capacitor C612, a second processing capacitor C613, a third processing capacitor C614, a fourth processing capacitor C615, and a fifth processing capacitor C616, sixth processing capacitor C617, seventh processing capacitor C618, ninth processing capacitor C619, tenth processing capacitor C620, eleventh processing capacitor C621, twelfth processing capacitor C622, and thirteenth processing capacitor C623;
  • GPIOA0 is electrically connected to the first terminal MSP10_CSN
  • GPIOA1 is electrically connected to the second terminal MSP10_CLK
  • GPIOA2 is electrically connected to the third terminal MSP10_MOSI
  • GPIOA3 is electrically connected to the fourth terminal MSP10_MISO
  • GPIOA4 is electrically connected to the fifth terminal MSP11_CSN
  • GPIOA5 is electrically connected to the sixth terminal MSP11_CLK is electrically connected
  • GPIOA6 is electrically connected to the seventh terminal MSP11_MOSI
  • GPIOA7 is electrically connected to the eighth terminal MSP11_MISO
  • GPIOA8 is electrically connected with the ninth terminal MSP12_CSN
  • GPIOA9 is electrically connected with the tenth terminal MSP12_CLK
  • GPIOA10 is electrically connected with the eleventh terminal MSP12_MOSI
  • GPIOA11 is electrically connected with the twelfth terminal MSP12_MISO
  • GPIOA12 is electrically connected with the thirteenth terminal MSP13_CSN
  • GPIOA13 is electrically connected with The fourteenth terminal MSP13_CLK is electrically connected
  • the GPIOA14 is electrically connected to the fifteenth terminal MSP13_MOSI
  • the GPIOA15 is electrically connected to the sixteenth terminal MSP13_MISO;
  • the first end of C612 is grounded, and the second end of C612 is electrically connected to MSP10_CLK;
  • the first end of C613 is grounded, and the second end of C613 is electrically connected to MSP10_MOSI;
  • the first end of C614 is grounded, and the second end of C614 is electrically connected to MSP10_MISO;
  • the first end of C615 is grounded, and the second end of C612 is electrically connected to MSP11_CLK;
  • the first end of C616 is grounded, and the second end of C616 is electrically connected to MSP11_MOSI;
  • the first end of C617 is grounded, and the second end of C617 is electrically connected to MSP11_MISO;
  • the first end of C618 is grounded, and the second end of C618 is electrically connected to MSP12_CLK;
  • the first end of C619 is grounded, and the second end of C619 is electrically connected to MSP12_MOSI;
  • the first end of C620 is grounded, and the second end of C620 is electrically connected to MSP12_MISO;
  • the first end of C621 is grounded, and the second end of C621 is electrically connected to MSP13_CLK;
  • the first end of C622 is grounded, and the second end of C622 is electrically connected to MSP13_MOSI;
  • the first end of C623 is grounded, and the second end of C623 is electrically connected to MSP13_MISO;
  • the GPIOA32 pin of IC601 is connected to the first clock signal ECLK0, and the GPIOA33 pin of IC601 is connected to the second clock signal ECLK1;
  • the GPIOA34 pin of IC601 is connected to the first synchronization signal VSYNC, and the GPIOA35 pin of IC601 is connected to the second synchronization signal TSYNC_T; in FIG. 17B , the one labeled T-con is the timing controller;
  • the GPIOA36 pin of IC601 is electrically connected to the first PWM signal terminal PWM_SRIC, and the GPIOA37 pin of IC601 is electrically connected to the second PWM signal terminal PWM_TPIC;
  • the GPIOA39 pin of IC601 is electrically connected to the third synchronization signal terminal TSYNC_SRIC, the GPIOA40 pin of IC601 is electrically connected to the fourth synchronization signal terminal TSYNC_TPIC, the GPIOA41 pin of IC601 is electrically connected to the first reset terminal RESET_SRIC; the GPIOA42 pin of IC601 is electrically connected to The first indication signal LCD_ON is input, and the GPIOA26 pin of IC601 is electrically connected to the multiplexing enable terminal T_MUX_EN.
  • the VDDIOM pin of IC601, the AVCC33_1 pin of IC601, the AVCC33_2 pin of IC601 and the VCC33_U pin of IC601 are all electrically connected to the first power supply terminal MCU3V3 and the second power supply terminal MDV3V3 respectively;
  • VDDIOA_1 pin of IC601, the VDDIOA_2 pin of IC601 and the VDDIOA_2 pin of IC601 are all electrically connected to the third power supply terminal MCU1V8 and the fourth power supply terminal MDV18 respectively;
  • VDD12_1 pin of IC601, the VDD12_2 pin of IC601 and the VDD12_3 pin of IC601 are all electrically connected to the fifth power supply terminal MCU1V2 and the sixth power supply terminal MDV12, respectively.
  • the touch operation processing circuit further includes a first processing diode D601, a first processing resistor R601, a second processing resistor R602, a third processing resistor R603, a fourth processing resistor R604 and a fifth processing resistor R605;
  • the anode of D601 is electrically connected to the GPIOM5 pin of IC601, the cathode of D601 is electrically connected to the first terminal of R601, and the second terminal of R601 is electrically connected to the eleventh voltage terminal VDDO/E;
  • the first end of R602 is electrically connected to the GPIOM7 pin of IC601, and the second end of R602 is grounded;
  • the first terminal of R603 is electrically connected to the USB_DP pin of IC601, and the second terminal of R603 is electrically connected to the twelfth voltage terminal VUSB_P;
  • the first end of R604 is electrically connected to the USB_REF pin of IC601, and the second end of R604 is grounded;
  • the first terminal of R605 is electrically connected to the USB_DM pin of IC601, and the second terminal of R605 is electrically connected to the thirteenth voltage terminal VUSB_M;
  • the anode of D601 is also electrically connected to the fourteenth voltage terminal VDDO/E(M);
  • the GPIOM0 pin of IC601 is electrically connected to the seventeenth terminal SWCK
  • the GPIOM1 pin of IC601 is electrically connected to the eighteenth terminal SWD
  • the GPIOM2 pin of IC601 is electrically connected to the eighteenth terminal MCU_SCL
  • the GPIOM3 pin of IC601 is electrically connected to the tenth terminal
  • the nine-terminal MCU_SDA is electrically connected
  • the GPIOM4 pin of IC601 is electrically connected with the eighteenth terminal MCU_INT
  • the GPIOM7 pin of IC601 is electrically connected to the nineteenth terminal S3_POWER_OUT
  • the GPIOM8 pin of IC601 is electrically connected to the twentieth terminal S3_POWER_IN
  • the GPIOM9 pin of IC601 is electrically connected to the twenty-first terminal PGMA_SCL
  • the GPIOM10 pin of IC601 is electrically connected to the twentieth terminal S3_POWER_IN.
  • the twenty-two terminals PGMA_SDA are electrically connected;
  • the XSCI pin of IC601 is electrically connected to the twenty-third terminal XI, and the XSCI pin of IC602 is electrically connected to the twenty-fourth terminal XO;
  • the ATEST1 pin of IC601 is electrically connected with the twenty-fifth terminal EN_LDO;
  • VSS_1 pin of IC601, the VSS_2 pin of IC601, the VSS_3 pin of IC601, the VSS_4 pin of IC601, the VSS_5 pin of IC601, the VSSA_1 pin of IC601 and the VSSA_2 pin of IC601 are all grounded.
  • control method described in the embodiment of the present disclosure is applied to the above-mentioned display touch device, and the control method includes:
  • the touch operation processing circuit When the touch operation processing circuit detects that the display touch device is in a touch-only detection state, the touch operation processing circuit provides a first touch enable signal to the display touch drive circuit to control the display touch drive circuit to touch control detection.
  • the touch operation processing circuit when the touch operation processing circuit detects that the display touch device is in a touch-only detection state, the touch operation processing circuit sends the The display touch drive circuit provides a first touch enable signal to control the display touch drive circuit to perform touch detection, so that touch detection can be conveniently performed, which is convenient when the display touch device is in the sleep mode (at this time)
  • the system can be woken up by using the touch function by clicking on the screen.
  • the display touch device further includes a gate drive module; the control method further includes:
  • the touch operation processing circuit When the touch operation processing circuit detects that the display touch device is in a touch-only detection state, the touch operation processing circuit provides a discharge control signal to the gate driving module, so that the gate driving module controls the The multi-row grid lines are turned on;
  • the touch operation processing circuit After the touch operation processing circuit provides a discharge control signal to the gate driving module, the touch operation processing circuit provides the first touch enable signal to the display touch drive circuit.
  • the touch operation processing circuit when the touch operation processing circuit detects that the display touch device is in a touch-only detection state, the touch operation processing circuit provides discharge to the gate driving module a control signal to control all gate lines included in the display panel to be turned on for discharging, and then the touch operation processing circuit provides a first touch enable signal to the display touch drive circuit to control the
  • the display touch drive circuit performs touch detection, so as to ensure that when the display touch device resumes the display function again, display abnormal phenomena (eg, flicker, afterimage, etc.) due to inability to discharge will not occur.
  • the display touch device further includes a data driver, and the display panel further includes a plurality of columns of data lines;
  • the control method according to at least one embodiment of the present disclosure further includes:
  • the touch operation processing circuit When the touch operation processing circuit provides a discharge control signal to the gate driving module, it provides a data driving control signal to the data driver, so that the data driver provides a common electrode voltage signal to the data line, so as to The potential of the pixel electrode in the pixel circuit included in the display panel is made to be the common electrode voltage, so that when the display touch device resumes the display function again, display abnormality will not occur.
  • the display touch device further includes a timing controller; the control method described in at least one embodiment of the present disclosure may further include:
  • the timing controller stops outputting a second touch enable signal to the touch operation processing circuit
  • the touch operation processing circuit determines that the display touch device is in a touch detection only state.
  • the timing controller provides a second touch enable signal to the touch operation processing circuit, and turns it off when there is no front-end display signal input.
  • the display part retains the touch function.
  • the timing controller does not provide a second touch enable signal to the touch operation processing circuit.
  • the touch operation processing circuit detects that the timing controller stops outputting the second touch operation
  • the display touch device further includes a power supply control circuit, a display power supply terminal, a touch power supply terminal and a power management module;
  • the power management module is used for the power supply voltage input from the voltage input terminal of the power management module for all supplying power to the gate driving module and the display touch driving circuit;
  • the control method according to at least one embodiment of the present disclosure may further include a power supply control step;
  • the power supply control step includes:
  • the power supply control circuit controls the communication between the display power supply terminal and the voltage input terminal;
  • the power supply control circuit controls the communication between the touch power supply terminal and the voltage input terminal.
  • the display power supply terminal when the display power supply terminal provides the display power supply voltage, the display power supply terminal supplies power to the gate driving module and the display touch driving circuit, and when the display power supply terminal does not provide the display power supply
  • the touch power supply terminal when the touch power supply terminal provides the touch power supply voltage, the touch power supply terminal supplies power to the gate drive module and the display touch drive circuit, so as to ensure that the display touch device can normally perform touch detection operations.
  • the power supply control circuit includes a voltage divider subcircuit, a signal generation subcircuit and a power supply control subcircuit;
  • the power supply control step may specifically include:
  • the voltage divider sub-circuit divides the display power supply voltage to generate and output the display working voltage through the display working voltage terminal;
  • the signal generating sub-circuit respectively generates and outputs a control signal through the control signal output terminal according to the display working voltage, and when the display working voltage is greater than a first predetermined voltage, the signal generating sub-circuit controls the control
  • the signal is a first voltage signal, and when the display operating voltage is less than the first predetermined voltage, the signal generating sub-circuit controls the control signal to be a second voltage signal;
  • the power supply control sub-circuit controls the communication between the display power supply terminal and the voltage input terminal, and when the control signal is a second voltage signal, the power supply control The sub-circuit controls the communication between the touch power supply terminal and the voltage input terminal.
  • the display touch device may further include a system terminal; the control method described in at least one embodiment of the present disclosure may further include:
  • the display touch drive circuit After the display touch drive circuit detects a touch event on the display panel, the display touch drive circuit provides a restart instruction signal to the touch operation processing circuit;
  • the touch operation processing circuit After the touch operation processing circuit receives the restart instruction signal, the touch operation processing circuit provides a wake-up signal to the system end;
  • the system end After the system end receives the wake-up signal, the system end controls the display touch driving circuit to perform display driving.
  • the display touch device may further include a system terminal.
  • the display touch drive circuit sends the The touch operation processing circuit provides a restart instruction signal, the touch operation processing circuit provides a wake-up signal to the system end, and the system end controls the display touch drive circuit to perform display driving, so that the display touch device is restarted. Return to normal display touch state.
  • the display touch device provided by the embodiments of the present disclosure may be any product or component with display touch function, such as a mobile phone, a tablet computer, a television, a monitor, a notebook computer, a digital photo frame, and a navigator.

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Abstract

本公开提供一种显示触摸装置和控制方法。显示触摸装置包括显示面板、栅极驱动模组、显示触控驱动电路和触摸运算处理电路,所述显示面板包括多行栅线;所述触摸运算处理电路用于当检测到所述显示触摸装置处于仅触控检测状态时,向所述显示触控驱动电路提供第一触控使能信号,以控制所述显示触控驱动电路进行触控检测。本公开能够在所述显示触摸装置处于仅触控检测状态时,方便的进行触控检测。

Description

显示触摸装置和控制方法
相关申请的交叉引用
本申请主张在2020年9月30日在中国提交的中国专利申请号No.202011063116.1的优先权,其全部内容通过引用包含于此。
技术领域
本公开涉及显示触控技术领域,尤其涉及一种显示触摸装置和控制方法。
背景技术
对于常规显示器,当电脑或主机长时间不用时,由系统自动进入休眠模式,显示部分关闭,来节省功耗。当鼠标移动或键盘敲击后唤醒系统,再点亮屏幕。对于内嵌式显示触摸装置,希望同样可以通过点击屏幕,利用触控功能实现唤醒系统的效果。现有的显示触摸装置不能方便的在休眠模式下,通过点击屏幕利用触控功能即可唤醒系统。
发明内容
在一个方面中,本公开实施例提供了一种显示触摸装置,所述显示触摸装置包括显示面板、显示触控驱动电路和触摸运算处理电路,所述显示面板包括多行栅线;
所述触摸运算处理电路用于当检测到所述显示触摸装置处于仅触控检测状态时,向所述显示触控驱动电路提供第一触控使能信号,以控制所述显示触控驱动电路进行触控检测。
可选的,本公开至少一实施例所述的显示触摸装置,还包括供电控制电路、显示供电端、触控供电端和电源管理模组;所述电源管理模组用于根据其电压输入端输入的供电电压,为所述显示触控驱动电路供电;
所述供电控制电路分别与所述显示供电端、所述触控供电端和所述电源管理模组电连接,用于当所述显示供电端提供显示供电电压时,控制所述显示供电端与所述电压输入端之间连通,并用于当所述显示供电端不提供显示 供电电压且所述触控供电端提供触控供电电压时,控制所述触控供电端与所述电压输入端之间连通。
可选的,所述供电控制电路包括分压子电路、信号生成子电路和供电控制子电路;
所述分压子电路分别与所述显示供电端和所述信号生成子电路电连接,用于当所述显示供电端提供显示供电电压时,对所述显示供电电压进行分压,以生成并通过显示工作电压端输出显示工作电压;
所述信号生成子电路分别与所述显示工作电压端和控制信号输出端电连接,用于根据所述显示工作电压,生成并通过所述控制信号输出端输出控制信号,当所述显示工作电压大于第一预定电压时,控制所述控制信号为第一电压信号,当所述显示工作电压小于所述第一预定电压时,控制所述控制信号为第二电压信号;
所述供电控制子电路分别与所述控制信号输出端、所述显示供电端、所述触控供电端和所述电压输入端电连接,用于在所述控制信号为第一电压信号时,控制所述显示供电端与所述电压输入端之间连通,还用于在所述控制信号为第二电压信号时,控制所述触控供电端与所述电压输入端之间连通。
可选的,所述信号生成子电路集成于所述触摸运算处理电路中。
可选的,所述第一电压信号为低电压信号,所述第二电压信号为高电压信号;或者,所述第一电压信号为高电压信号,所述第二电压信号为低电压信号。
可选的,所述供电控制子电路包括第一开关子电路、第二开关子电路、第一反相子电路和第二反相子电路;
所述第一反相子电路用于对所述控制信号进行反相,以得到第一反相电压信号,并将所述第一反相电压信号提供至所述第二开关子电路的控制端和所述第二反相子电路;
所述第二反相子电路用于对所述第一反相电压信号进行反相,以得到第二反相电压信号,并将所述第二反相电压信号提供至所述第一开关子电路的控制端;
所述第一开关子电路用于当所述第二反相电压信号为第一电压信号时, 控制所述显示供电端与所述电压输入端之间连通,当所述第二反相电压信号为第二电压信号时,控制断开所述显示供电端与所述电压输入端之间的连接;
所述第二开关子电路用于当所述第一反相电压信号为第一电压信号时,控制所述触控供电端与所述电压输入端之间连通,并当所述第一反相电压信号为第二电压信号时,控制断开所述触控供电端与所述电压输入端之间的连接。
可选的,所述第一开关子电路包括第一开关晶体管和第二开关晶体管;
所述第一开关晶体管的控制极和所述第二开关晶体管的控制极都与所述第一开关子电路的控制端电连接;
所述第一开关晶体管的第一极与所述显示供电端电连接,所述第一开关晶体管的第二端与所述第二开关晶体管的第一极电连接;
所述第二开关晶体管的第二极与所述电压输入端电连接。
可选的,所述第二开关子电路包括第三开关晶体管;
所述第三开关晶体管的第一极与所述触控供电端电连接,所述第三开关晶体管的第二极与所述电压输入端电连接。
可选的,所述第一反相子电路包括第一反相晶体管和第一电阻;
所述第一反相晶体管的控制极与所述控制信号输出端电连接,所述第一反相晶体管的第一极与所述第二开关子电路的控制端电连接,所述第一反相晶体管的第二极与第三电压端电连接;
所述第一电阻的第一端与第二开关子电路的控制端电连接,所述第一电阻的第二端与所述触控供电端电连接。
可选的,所述第二反相子电路包括第二反相晶体管和第二电阻;
所述第二反相晶体管的控制极与所述第二开关子电路的控制端电连接,所述第二反相晶体管的第一极与所述触控供电端电连接,所述第二反相晶体管的第二极通过所述第二电阻与第三电压端电连接。
可选的,本公开至少一实施例所述的显示触摸装置还包括控制二极管;
所述控制二极管的阳极与所述显示供电端电连接,所述控制二极管的阴极与所述触控供电端电连接。
可选的,本公开至少一实施例所述的显示触摸装置还包括系统端;
所述触摸运算处理电路还用于在检测到显示面板的触摸事件后,向所述系统端提供唤醒信号;
所述系统端用于在接收到所述唤醒信号后,控制所述显示触控驱动电路进行显示驱动。
可选的,所述显示触摸装置还包括栅极驱动模组;
所述触摸运算处理电路还用于在检测到所述显示触摸装置处于仅触控检测状态时,向所述栅极驱动模组提供放电控制信号,以使得所述栅极驱动模组控制所述多行栅线打开,并在向所述栅极驱动模组提供放电控制信号之后,向所述显示触控驱动电路提供第一触控使能信号。
可选的,本公开至少一实施例所述的显示触摸装置还包括数据驱动器;所述显示面板还包括多列数据线;
所述触摸运算处理电路还用于在向所述栅极驱动模组提供放电控制信号时,向数据驱动器提供数据驱动控制信号,以使得所述数据驱动器向所述数据线提供公共电极电压信号。
可选的,本公开至少一实施例所述的显示触摸装置还包括时序控制器;
所述时序控制器用于在所述显示触摸装置处于仅触控检测状态时停止输出第二触控使能信号至所述触摸运算处理电路;
所述触摸运算处理电路用于当检测到所述时序控制器停止输出所述第二触控使能信号时,判断所述显示触摸装置处于仅触控检测状态。
在第二个方面中,本公开实施例还提供了一种控制方法,应用于上述的显示触摸装置,所述控制方法包括:
当触摸运算处理电路检测到显示触摸装置处于仅触控检测状态时,所述触摸运算处理电路向显示触控驱动电路提供第一触控使能信号,以控制所述显示触控驱动电路进行触控检测。
可选的,所述显示触摸装置还包括供电控制电路、显示供电端、触控供电端和电源管理模组;所述电源管理模组用于根据其电压输入端输入的供电电压,为所述显示触控驱动电路供电;所述控制方法还包括供电控制步骤;
所述供电控制步骤包括:
当所述显示供电端提供显示供电电压时,所述供电控制电路控制所述显 示供电端与所述电压输入端之间连通;
当所述显示供电端不提供显示供电电压而所述触控供电端提供触控供电电压时,所述供电控制电路控制所述触控供电端与所述电压输入端之间连通。
可选的,所述供电控制电路包括分压子电路、信号生成子电路和供电控制子电路;
所述供电控制步骤具体包括:
当所述显示供电端提供显示供电电压时,所述分压子电路对所述显示供电电压进行分压,以生成并通过显示工作电压端输出显示工作电压;
所述信号生成子电路根据所述显示工作电压,生成并通过所述控制信号输出端输出控制信号,当所述显示工作电压大于第一预定电压时,所述信号生成子电路控制所述控制信号为第一电压信号,当所述显示工作电压小于所述第一预定电压时,所述信号生成子电路控制所述控制信号为第二电压信号;
在所述控制信号为第一电压信号时,所述供电控制子电路控制所述显示供电端与所述电压输入端之间连通,在所述控制信号为第二电压信号时,所述供电控制子电路控制所述触控供电端与所述电压输入端之间连通。
可选的,所述显示触摸装置还包括系统端;所述控制方法还包括:
在所述触摸运算处理电路检测到显示面板的触摸事件后,所述触摸运算处理电路向所述系统端提供唤醒信号;
在所述系统端接收到所述唤醒信号后,所述系统端控制所述显示触控驱动电路进行显示驱动。
可选的,所述显示触摸装置还包括栅极驱动模组;所述控制方法还包括:
在所述触摸运算处理电路检测到所述显示触摸装置处于仅触控检测状态时,所述触摸运算处理电路向栅极驱动模组提供放电控制信号,以使得所述栅极驱动模组控制所述多行栅线打开;
在所述触摸运算处理电路向所述栅极驱动模组提供放电控制信号之后,触摸运算处理电路向所述显示触控驱动电路提供所述第一触控使能信号。
可选的,所述显示触摸装置还包括数据驱动器,所述显示面板还包括多列数据线;所述控制方法还包括:
所述触摸运算处理电路在向所述栅极驱动模组提供放电控制信号时,向 所述数据驱动器提供数据驱动控制信号,以使得所述数据驱动器向所述数据线提供公共电极电压信号。
可选的,所述显示触摸装置还包括时序控制器;所述控制方法还包括:
在所述显示触摸装置处于仅触控检测状态时,所述时序控制器停止输出第二触控使能信号至所述触摸运算处理电路;
当所述触摸运算处理电路检测到所述时序控制器停止输出所述第二触控使能信号时,所述触摸运算处理电路判断所述显示触摸装置处于仅触控检测状态。
附图说明
图1是本公开至少一实施例所述的显示触摸装置的结构图;
图2是本公开至少一实施例所述的显示触摸装置的结构图;
图3是本公开至少一实施例所述的显示触摸装置的结构图;
图4是本公开至少一实施例所述的显示触摸装置的结构图;
图5是本公开如图4所示的显示触摸装置的至少一实施例的工作时序图;
图6是本公开至少一实施例所述的显示触摸装置的结构图;
图7是本公开至少一实施例所述的显示触摸装置的结构图;
图8是本公开至少一实施例所述的显示触摸装置的结构图;
图9是本公开至少一实施例所述的显示触摸装置的结构图;
图10是本公开如图9所示的显示触摸装置的至少一实施例的工作时序图;
图11是本公开至少一实施例所述的显示触摸装置的结构图;
图12是本公开至少一实施例所述的显示触摸装置的结构图;
图13是本公开至少一实施例所述的显示触摸装置的结构图;
图14A、图14B、图14C和图14D是本公开所述的显示触摸装置中的降压电路的至少一实施例的电路图;
图15是本公开所述的显示触摸装置中的降压电路的至少一实施例的电路图;
图16A是本公开至少一实施例所述的显示触摸装置中的电源管理集成电路的一部分的电路图;
图16B是本公开至少一实施例所述的显示触摸装置中的电源管理集成电路的一部分的电路图;
图16C是本公开至少一实施例所述的显示触摸装置中的电源管理集成电路的一部分的电路图;
图16D是图16A、图16B和图16C中的IC401的结构示意图;
图17A是本公开至少一实施例所述的显示触摸装置中的触摸运算处理电路的至少一实施例采用的MCU(微控制单元)芯片IC601的结构图;
图17B是本公开至少一实施例所述的显示触摸装置中的触摸运算处理电路的至少一实施例的一部分的结构图;
图17C是本公开至少一实施例所述的显示触摸装置中的触摸运算处理电路的至少一实施例的一部分的结构图。
具体实施方式
下面将结合本公开实施例中的附图,对本公开实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本公开一部分实施例,而不是全部的实施例。基于本公开中的实施例,本领域普通技术人员在没有做出创造性劳动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。
本公开所有实施例中采用的晶体管均可以为三极管、薄膜晶体管或场效应管或其他特性相同的器件。在本公开实施例中,为区分晶体管除控制极之外的两极,将其中一极称为第一极,另一极称为第二极。
在实际操作时,当所述晶体管为三极管时,所述控制极可以为基极,所述第一极可以为集电极,所述第二极可以发射极;或者,所述控制极可以为基极,所述第一极可以为发射极,所述第二极可以集电极。
在实际操作时,当所述晶体管为薄膜晶体管或场效应管时,所述控制极可以为栅极,所述第一极可以为漏极,所述第二极可以为源极;或者,所述控制极可以为栅极,所述第一极可以为源极,所述第二极可以为漏极。
本公开实施例所述的显示触摸装置包括显示面板、显示触控驱动电路和触摸运算处理电路,所述显示面板包括多行栅线;
所述触摸运算处理电路与所述显示触控驱动电路电连接,用于当检测到 所述显示触摸装置处于仅触控检测状态时,向所述显示触控驱动电路提供第一触控使能信号,以控制所述显示触控驱动电路进行触控检测。
本公开至少一实施例所述的显示触摸装置在工作时,本公开实施例所述的显示触摸装置和控制方法能够在所述显示触摸装置处于仅触控检测状态时,方便的进行触控检测,从而便于在显示触摸装置处于休眠模式下(此时所述显示触摸装置的显示功能关闭,功耗低)时,能够通过点击屏幕利用触控功能即可唤醒系统。
在本公开至少一实施例中,当所述显示触摸装置处于仅触控检测状态时,所述显示触摸装置处于休眠模式下,此时所述显示触摸装置的显示功能关闭,以降低功耗。
如图1所示,本公开至少一实施例所述的显示触摸装置包括显示面板、栅极驱动模组11、显示触控驱动电路12和触摸运算处理电路13,所述显示面板包括多行栅线;
所述触摸运算处理电路13与所述显示触控驱动电路12电连接,用于当检测到所述显示触摸装置处于仅触控检测状态时,向所述显示触控驱动电路12提供第一触控使能信号,以控制所述显示触控驱动电路12进行触控检测。
本公开至少一实施例所述的显示触摸装置在工作时,当所述触摸运算处理电路13检测到所述显示触摸装置处于仅触控检测状态时,所述触摸运算处理电路13向所述显示触控驱动电路12提供第一触控使能信号,以控制所述显示触控驱动电路12进行触控检测。本公开至少一实施例能够在所述显示触摸装置处于仅触控检测状态时,方便的进行触控检测,从而便于在显示触摸装置处于休眠模式下(此时所述显示触摸装置的显示功能关闭,功耗低)时,能够通过点击屏幕利用触控功能即可唤醒系统。
可选的,在图1所示的至少一实施例中,所述触摸运算处理电路13还与所述栅极驱动模组11电连接,用于在检测到所述显示触摸装置处于仅触控检测状态时,向所述栅极驱动模组11提供放电控制信号,以使得所述栅极驱动模组11控制所述多行栅线打开,并在向所述栅极驱动模组11提供放电控制信号之后,向所述显示触控驱动电路12提供第一触控使能信号。
本公开至少一实施例所述的显示触摸装置在工作时,当所述触摸运算处 理电路13检测到所述显示触摸装置处于仅触控检测状态时,所述触摸运算处理电路13向栅极驱动模组11提供放电控制信号,以控制所述显示面板包括的所有栅线都打开,以进行放电,之后所述触摸运算处理电路13再向所述显示触控驱动电路12提供第一触控使能信号,以控制所述显示触控驱动电路12进行触控检测,从而能够保证在显示触摸装置再次恢复显示功能时,不会发生由于无法放电而造成的显示异常现象(例如,闪烁、残像等)。
在本公开至少一实施例中,当触摸运算处理电路向所述显示触控驱动电路提供第一触控使能信号时,所述触摸运算处理电路可以停止向所述栅极驱动模组提供放电控制信号,此时所述栅线关闭,但不以此为限。
在本公开至少一实施例中,所述显示面板可以为液晶显示面板,但不以此为限。
在具体实施时,如图2所示,本公开至少一实施例所述的显示触摸装置还包括数据驱动器20,所述显示面板还包括多列数据线;所述数据驱动器20与所述数据线电连接,用于为所述数据线提供相应的数据电压;
所述触摸运算处理电路13还与所述数据驱动器20电连接,还用于在向所述栅极驱动模组11提供放电控制信号时,向数据驱动器20提供数据驱动控制信号,以使得所述数据驱动器20向所述数据线提供公共电极电压信号,以使得显示面板包括的像素电路中的像素电极的电位为公共电极电压,以使得显示触摸装置再次恢复显示功能时,不会发生显示异常现象。
在实际操作时,所述显示触控驱动电路12可以向所述显示面板包括的触控驱动电极提供触控驱动信号,并接收显示面板包括的触控感应电极反馈的触控感应信号,根据所述触控感应信号判断是否存在触摸事件。其中,所述触控驱动电极与所述触控感应电极可以为同一触控电极,但不以此为限。在本公开至少一实施例中,可以将公共电极复用为触控电极,但不以此为限。
在本公开至少一实施例中,在图1所示的显示触摸装置的至少一实施例的基础上,如图3所示,所述栅极驱动模组可以包括电平转换电路91和栅极驱动电路92;
所述电平转换电路91分别与所述触摸运算处理电路13和所述显示触控驱动电路12电连接;
所述触摸运算处理电路13用于当检测到所述显示触摸装置处于仅触控检测状态时,向所述电平转换电路91提供放电控制信号;
所述电平转换电路91根据所述放电控制信号,通过所述显示触控驱动电路12向所述栅极驱动电路92提供栅线打开控制信号,以使得所述栅极驱动电路92根据所述栅线打开控制信号,控制所述显示面板包括的所有行栅线都打开。
在实际操作时,所述栅极驱动电路可以设置于所述显示面板包括的阵列基板上,但不以此为限。
在本公开至少一实施例中,当所述显示面板为液晶显示面板时,所述显示面板可以包括多行栅线、多列数据线、多行多列像素电路和多列触控信号线;
第m行第n列像素电路可以包括第m行第n列晶体管和第m行第n列像素电极;m和n都为正整数;
第m行第n列晶体管的控制极与第m行栅线电连接,第m行第n列晶体管的第一极与第n列数据线电连接,第m行第n列晶体管的第二极与第m行第n列像素电极电连接;
所述多列触控信号线都与所述显示触控驱动电路12电连接,用于接收来自所述显示触控驱动电路12的触控驱动信号,并反馈相应的触控感应信号。
在具体实施时,所述第m行栅线打开指的是:第m行栅线为所述第m行第n列晶体管的控制极提供第m行栅极驱动信号,以使得所述第m行第n列晶体管打开,以使得所述第m行第n列像素电极与所述第n列数据线之间连通。
例如,当所述第m行第n列晶体管为n型晶体管时,所述第m行栅线打开指的是:所述第m行栅线提供高电压信号至第m行第n列晶体管的控制极,以使得所述第m行第n列晶体管打开;当所述第m行第n列晶体管为p型晶体管时,所述第m行栅线打开指的是:所述第m行栅线提供低电压信号至第m行第n列晶体管的控制极,以使得所述第m行第n列晶体管打开。
在本公开至少一实施例中,如图4所示,在图1所述的显示触摸装置的至少一实施例的基础上,所述显示触摸装置还可以包括时序控制器40;
所述时序控制器40用于在所述显示触摸装置处于仅触控检测状态时停止输出第二触控使能信号至所述触摸运算处理电路13;
所述触摸运算处理电路13与所述时序控制器40电连接,用于当检测到所述时序控制器40停止输出所述第二触控使能信号时,判断所述显示触摸装置处于仅触控检测状态。
在实际操作时,当所述显示触摸装置处于正常显示触控状态时,所述时序控制器40会向所述触摸运算处理电路13提供第二触控使能信号,而当无前端显示信号输入时关闭显示部分,保留触控功能,此时所述时序控制器40不向触摸运算处理电路13提供第二触控使能信号,当所述触摸运算处理电路13检测到所述时序控制器40停止输出所述第二触控使能信号时,可以判断显示触摸装置处于仅触控检测状态。
在本公开至少一实施例中,触摸运算处理电路13可以提供放电控制信号X1至所述栅极驱动模组,所述触摸运算处理电路13可以向所述显示触控驱动电路12提供第一触控使能信号Vs1,所述时序控制器40可以向所述触摸运算处理电路13提供第二触控使能信号Vs2;图5是X1、Vs1和Vs2的波形图。
如图5所示,在第一显示触控阶段t11和第二显示触控阶段t12,S2输出第二触控使能信号;
在熄屏触控阶段t20开始时,所述触摸运算处理电路13输出放电控制信号X1,之后,所述触摸运算处理电路13输出第一触控使能信号Vs1;
在所述熄屏触控阶段t20,所述显示触摸装置处于仅触控检测状态,前端无显示信号输入,仅能够进行触控检测。
在图5中,当所述第一触控使能信号的电位为低电压时,所述显示触控装置能够进行触控检测,当所述第二触控使能信号的电位为低电压时,所述显示触控装置能够进行触控检测,当所述放电控制信号的电位为低电压时,所述栅极驱动模组11能够控制所述多行栅线打开。
在本公开至少一实施例中,所述显示触摸装置可以包括触摸运算处理电路、显示触控驱动电路、TCON(时序控制器)和系统端;
在所述显示触摸装置正常进行触控显示时,所述系统端提供显示信号至 TCON,并由显示供电端G1为TCON供电,由触控供电端G2为触摸运算处理电路供电。
在本公开至少一实施例中,系统端是整机厂提供的带windows操作系统的板卡。
在本公开至少一实施例所述的显示触摸装置进行触控检测时,由显示触控驱动电路12通过触控信号线向触控电极提供触控驱动信号,并接收所述触控信号线反馈的触控感应信号。
在具体实施时,如图6所示,在图1所示的显示触摸装置的基础上,本公开至少一实施例所述的显示触摸装置还可以包括供电控制电路61、显示供电端G1、触控供电端G2和电源管理模组62;所述电源管理模组62用于根据其电压输入端P1输入的供电电压,为所述栅极驱动模组11和所述显示触控驱动电路12供电;
所述供电控制电路61分别与所述显示供电端G1、所述触控供电端G2和所述电源管理模组62电连接,用于当所述显示供电端G1提供显示供电电压时,控制所述显示供电端G1与所述电压输入端P1之间连通,并用于当所述显示供电端G1不提供显示供电电压而所述触控供电端G2提供触控供电电压时,控制所述触控供电端G2与所述电压输入端P1之间连通。
本公开至少一实施例所述的显示触摸装置在工作时,当显示供电端G1提供显示供电电压时,由显示供电端G1为栅极驱动模组和显示触控驱动电路12供电,当显示供电端G1不提供显示供电电压而所述触控供电端G2提供触控供电电压时,由所述触控供电端G2为栅极驱动模组和显示触控驱动电路12供电,保证显示触摸装置能够正常进行触控检测操作。
在具体实施时,所述电源管理模组可以包括电源管理集成电路和触控集成电路;
所述栅极驱动模组包括电平转换电路和栅极驱动电路;
所述电源管理集成电路为所述触控集成电路提供电压信号,所述电压信号可以包括低电压信号VGL和公共电极电压信号VCOM,但不以此为限;
所述触控集成电路用于向所述显示触控驱动电路12提供第一调制电压信号VCOM_M和第二调制电压信号VGL_M;
其中,VCOM_M是在VCOM的基础上叠加脉冲信号后得到的电压信号,VGL_M是在VGL的基础上叠加脉冲信号后得到的电压信号,但不以此为限。
所述电源管理集成电路还用于为所述显示触控驱动电路12提供工作电压;
所述电平转换电路分别与所述触摸运算处理电路和所述显示触控驱动电路电连接;
所述触摸运算处理电路用于当检测到所述显示触摸装置处于仅触控检测状态时,向所述电平转换电路提供放电控制信号;
所述电平转换电路根据所述放电控制信号,通过所述显示触控驱动电路向所述栅极驱动电路提供栅线打开控制信号,以使得所述栅极驱动电路根据所述栅线打开控制信号,控制所述显示面板包括的所有行栅线都打开。
在实际操作时,所述栅极驱动电路可以设置于所述显示面板包括的阵列基板上,但不以此为限。
如图7所示,所述供电控制电路可以包括分压子电路71、信号生成子电路72和供电控制子电路73;
所述分压子电路71分别与所述显示供电端G1和所述信号生成子电路72电连接,用于当所述显示供电端G1提供显示供电电压时,对所述显示供电电压进行分压,以生成并通过显示工作电压端G3输出显示工作电压;
所述信号生成子电路72分别与所述显示工作电压端G3和控制信号输出端G4电连接,用于根据所述显示工作电压,生成并通过所述控制信号输出端G4输出控制信号,当所述显示工作电压大于第一预定电压时,控制所述控制信号为第一电压信号,当所述显示工作电压小于所述第一预定电压时,控制所述控制信号为第二电压信号;
所述供电控制子电路73分别与所述控制信号输出端G4、所述显示供电端G1、所述触控供电端G2和所述电压输入端P1电连接,用于在所述控制信号为第一电压信号时,控制所述显示供电端G1与所述电压输入端P1之间连通,还用于在所述控制信号为第二电压信号时,控制所述触控供电端G2与所述电压输入端P1之间连通。
本公开至少一如图7所示的显示触摸装置在工作时,分压子电路71对显 示供电电压进行分压,生成显示工作电压,信号生成子电路72根据所述显示工作电压控制生成相应的控制信号,供电控制子电路73在所述控制信号的控制下,控制显示电压端G1与电压输入端P1连通,或者,控制触控供电端G2与所述电压输入端P1之间连通。
在具体实施时,所述信号生成子电路可以集成于所述触摸运算处理电路中。
可选的,所述第一电压信号为低电压信号,所述第二电压信号为高电压信号;或者,所述第一电压信号为高电压信号,所述第二电压信号为低电压信号。
在本公开至少一实施例中,在图7所示的至少一实施例的基础上,如图8所示,所述供电控制子电路可以包括第一开关子电路81、第二开关子电路82、第一反相子电路84和第二反相子电路83;
所述第一反相子电路84分别与所述控制信号输出端G4、所述第二开关子电路82的控制端和所述第二反相子电路83电连接,用于对所述控制信号进行反相,以得到第一反相电压信号,并将所述第一反相电压信号提供至所述第二开关子电路82的控制端和所述第二反相子电路83;
所述第二反相子电路83与所述第一开关子电路81的控制端电连接,用于对所述第一反相电压信号进行反相,以得到第二反相电压信号,并将所述第二反相电压信号提供至所述第一开关子电路81的控制端;
所述第一开关子电路81分别与所述显示供电端G1和所述电压输入端P1电连接,用于当所述第二反相电压信号为第一电压信号时,控制所述显示供电端G1与所述电压输入端P1之间连通,当所述第二反相电压信号为第二电压信号时,控制断开所述显示供电端G1与所述电压输入端P1之间的连接;
所述第二开关子电路82分别与所述触控供电端G2和所述电压输入端P1电连接,用于当所述第一反相电压信号为第一电压信号时,控制所述触控供电端G2与所述电压输入端P1之间连通,并当所述第一反相电压信号为第二电压信号时,控制断开所述触控供电端G2与所述电压输入端P1之间的连接。
在具体实施时,所述供电控制子电路可以包括第一开关子电路81、第二开关子电路82、第一反相子电路84和第二反相子电路83;所述第一反相子 电路84对所述控制信号进行反相,以得到第一反相电压信号,所述第二反相子电路83对所述第一反相电压信号进行反相,以得到第二反相电压信号;所述第一开关子电路81根据所述第二反相电压信号,控制导通或断开所述显示供电端G1与所述电压输入端P1之间的连接;所述第二开关子电路8在所述第一反相电压信号的控制下,控制导通或断开所述触控供电端G2与所述电压输入端P1之间的连接。
可选的,所述第一开关子电路包括第一开关晶体管和第二开关晶体管;
所述第一开关晶体管的控制极和所述第二开关晶体管的控制极都与所述第一开关子电路的控制端电连接;
所述第一开关晶体管的第一极与所述显示供电端电连接,所述第一开关晶体管的第二端与所述第二开关晶体管的第一极电连接;
所述第二开关晶体管的第二极与所述电压输入端电连接。
可选的,所述第二开关子电路包括第三开关晶体管;
所述第三开关晶体管的第一极与所述触控供电端电连接,所述第三开关晶体管的第二极与所述电压输入端电连接。
可选的,所述第一反相子电路包括第一反相晶体管和第一电阻;
所述第一反相晶体管的控制极与所述控制信号输出端电连接,所述第一反相晶体管的第一极与所述第二开关子电路的控制端电连接,所述第一反相晶体管的第二极与第三电压端电连接;
所述第一电阻的第一端与第二开关子电路的控制端电连接,所述第一电阻的第二端与所述触控供电端电连接。
可选的,所述第二反相子电路包括第二反相晶体管和第二电阻;
所述第二反相晶体管的控制极与所述第二开关子电路的控制端电连接,所述第二反相晶体管的第一极与所述触控供电端电连接,所述第二反相晶体管的第二极通过所述第二电阻与第三电压端电连接。
在本公开至少一实施例中,当所述显示触摸装置能够进行触控检测时,所述触控供电端G2一直输出触控供电电压。
在实际操作时,所述第三电压端可以为地端或低电压端,但不以此为限。
在具体实施时,本公开至少一实施例所述的显示触摸装置还可以包括控 制二极管;
所述控制二极管的阳极与所述显示供电端电连接,所述控制二极管的阴极与所述触控供电端电连接;
所述控制二极管保证显示触摸装置正常工作时触控供电端的供电电流,同时防止显示触摸装置休眠时电流回灌。
本公开至少一实施例所述的显示触摸装置在处于仅触控检测状态时,时序控制器可以不工作,所述显示触控驱动电路12工作。
如图9所示,本公开至少一实施例所述的显示触摸装置包括显示面板P0、栅极驱动模组、显示触控驱动电路12、触摸运算处理电路13、时序控制器40、供电控制电路、显示供电端G1、触控供电端G2、电源管理模组、伽马基准电压生成电路90、第一降压电路B1、第二降压电路B2、第三降压电路B3、第四降压电路B4、数据驱动器20和系统端130;所述显示面板P0包括多行栅线;
所述栅极驱动模组包括电平转换电路91和栅极驱动电路92;
所述电平转换电路91分别与所述触摸运算处理电路13和所述显示触控驱动电路12电连接;
所述触摸运算处理电路13用于当检测到所述显示触摸装置处于仅触控检测状态时,向所述电平转换电路91提供放电控制信号;
所述电平转换电路91根据所述放电控制信号,通过所述显示触控驱动电路12向所述栅极驱动电路92提供栅线打开控制信号,以使得所述栅极驱动电路92根据所述栅线打开控制信号,控制所述显示面板包括的所有行栅线都打开;
所述栅极驱动电路92设置于所述显示面板P0包括的阵列基板上;
所述触摸运算处理电路13还用于为所述电平转换电路91提供驱动电压VDD;
所述时序控制器40与所述触摸运算处理电路13电连接;当所述显示触摸装置处于正常显示触控状态时,所述时序控制器40会向所述触摸运算处理电路13提供第二触控使能信号Vs2,所述触摸运算处理电路13向所述显示触控驱动电路12提供Vs2;而当无前端显示信号输入时关闭显示部分,保留 触控功能,此时所述时序控制器40不向触摸运算处理电路13提供第二触控使能信号Vs2,当所述触摸运算处理电路13检测到所述时序控制器40停止输出所述第二触控使能信号Vs2时,可以判断所述显示触摸装置处于仅触控检测状态;
所述时序控制器40用于为所述电平转换电路91提供起始信号STV、时钟信号CLK和驱动电压VDD;
所述触摸运算处理电路13分别与所述栅极驱动模组和所述显示触控驱动电路12电连接,用于当检测到所述显示触摸装置处于仅触控检测状态时,向所述栅极驱动模组提供放电控制信号,以使得所述栅极驱动模组控制所述多行栅线打开,并在向所述栅极驱动模组提供放电控制信号之后,向所述显示触控驱动电路12提供第一触控使能信号,以控制所述显示触控驱动电路12进行触控检测;
所述触摸运算处理电路13还与所述电平转换电路91电连接,用于为所述电平转换电路91提供电源电压;
所述显示触控驱动电路12接收到触控使能信号Vs0;所述触摸运算处理电路13向所述触控集成电路622提供所述触控使能信号Vs0;
所述电源管理模组包括所述电源管理集成电路621和触控集成电路622;
所述电源管理集成电路621为所述触控集成电路622提供电压信号,所述电压信号可以包括低电压信号VGL和公共电极电压信号VCOM;
所述触控集成电路622用于向所述显示触控驱动电路12提供第一调制电压信号VCOM_M和第二调制电压信号VGL_M;所述电源管理集成电路621还用于为所述显示触控驱动电路12提供工作电压;
所述触控集成电路622用于为所述显示触控驱动电路12提供VCOM_M,所述触控集成电路622用于为所述电平转换电路91提供VGL_M;
所述电源管理集成电路621用于为所述伽马基准电压生成电路90供电,所述伽马基准电压生成电路90与所述显示触控驱动电路12电连接,以为所述显示触控驱动电路12提供伽马基准电压;
所述供电控制电路61包括分压子电路71、信号生成子电路和供电控制子电路;
所述分压子电路71包括第一分压电阻R1和第二分压电阻R2,其中,
R1的第一端与显示供电端G1电连接,R1的第二端与R2的第一端电连接,R2的第二端与地端GND电连接;
R1的第二端与显示工作电压端G3电连接;
所述信号生成子电路集成于所述触摸运算处理电路13中;
所述信号生成子电路分别与所述显示工作电压端G3和控制信号输出端G4电连接,用于根据所述显示工作电压,生成并通过所述控制信号输出端G4输出控制信号,当所述显示工作电压大于第一预定电压时,控制所述控制信号为第一电压信号,当所述显示工作电压小于所述第一预定电压时,控制所述控制信号为第二电压信号;
所述供电控制子电路包括第一开关子电路81、第二开关子电路82、第一反相子电路84和第二反相子电路83;
所述第一反相子电路84分别与所述控制信号输出端G4、所述第二开关子电路82的控制端和所述第二反相子电路83电连接,用于对所述控制信号进行反相,以得到第一反相电压信号,并将所述第一反相电压信号提供至所述第二开关子电路82的控制端和所述第二反相子电路83;
所述第二反相子电路83与所述第一开关子电路81的控制端电连接,用于对所述第一反相电压信号进行反相,以得到第二反相电压信号,并将所述第二反相电压信号提供至所述第一开关子电路81的控制端;
所述第一开关子电路81分别与所述显示供电端G1和所述电压输入端P1电连接,用于当所述第二反相电压信号为第一电压信号时,控制所述显示供电端G1与所述电压输入端P1之间连通,当所述第二反相电压信号为第二电压信号时,控制断开所述显示供电端G1与所述电压输入端P1之间的连接;
所述第二开关子电路82分别与所述触控供电端G2和所述电压输入端P2电连接,用于当所述第一反相电压信号为第一电压信号时,控制所述触控供电端G2与所述电压输入端P1之间连通,并当所述第一反相电压信号为第二电压信号时,控制断开所述触控供电端G2与所述电压输入端P1之间的连接;
所述第一降压电路B1分别与所述显示供电端G1和所述时序控制器40电连接,用于对显示供电电压进行降压,并将降压后的显示供电电压提供至 所述时序控制器40;
所述第二降压电路B2分别与所述显示供电端G1和所述时序控制器40电连接,用于对显示供电电压进行降压,并将降压后的显示供电电压提供至所述时序控制器40;
所述第三降压电路B3分别与所述触控供电端G2和所述触摸运算处理电路13电连接,用于对触控供电电压进行降压,并将降压后的触控供电电压提供至所述触摸运算处理电路13;
所述第四降压电路B4分别与所述触控供电端G2和所述触摸运算处理电路13电连接,用于对触控供电电压进行降压,并将降压后的触控供电电压提供至所述触摸运算处理电路13;
所述数据驱动器20与所述显示面板P0包括的数据线电连接,用于为所述数据线提供相应的数据电压;
所述触摸运算处理电路13还与所述数据驱动器20电连接,用于在向所述电平转换电路91提供放电控制信号时,向数据驱动器20提供数据驱动控制信号,以使得所述数据驱动器20向所述数据线提供公共电极电压信号;
所述系统端130与所述时序控制器40电连接,用于在所述显示触摸装置正常进行触控显示时,所述系统端提供显示信号至所述时序控制器40;
所述系统端130还分别与所述触摸运算处理电路13和所述显示触控驱动电路12电连接,
所述触摸运算处理电路13还用于在检测到显示面板的触摸事件后,向所述系统端130提供唤醒信号;
所述系统端130用于在接收到所述唤醒信号后,控制所述显示触控驱动电路12进行显示驱动。。
在本公开如图9所示的显示触摸装置的至少一实施例中,第一降压电路B1、第二降压电路B2、第三降压电路B3和第四降压电路B4都包括采用单路降压IC(Integrated Circuit,集成电路),因此在显示供电端G1和时序控制器40之间需要采用两个降压电路,在触控供电端G2与触摸运算处理电路13之间需要要用两个降压电路;当降压电路采用多路降压IC时,在显示供电端G1和时序控制器40仅采用一个降压电路即可,在触控供电端G2与触摸运算 处理电路13之间仅采用一个降压电路即可。
本公开至少一实施例所述的显示触摸装置在工作时,所述第一反相子电路84对所述控制信号进行反相,以得到第一反相电压信号;所述第二反相子电路83对所述第一反相电压信号进行反相,以得到第二反相电压信号;所述第一开关子电路81用于当所述第二反相电压信号为低电压信号时,控制所述显示供电端G1与所述电压输入端P1之间连通,当所述第二反相电压信号为高电压信号时,控制断开所述显示供电端G1与所述电压输入端P1之间的连接;所述第二开关子电路82用于当所述第一反相电压信号为低电压信号时,控制所述触控供电端G2与所述电压输入端P1之间连通,并当所述第一反相电压信号为高电压信号时,控制断开所述触控供电端G2与所述电压输入端P1之间的连接;
当G1提供显示供电电压时,所述控制信号为低电压信号,第一反相电压信号为高电压信号,第二反相电压信号为低电压信号,第二开关子电路82控制断开所述触控供电端G2与所述电压输入端P1之间的连接,第一开关子电路81控制所述显示供电端G1与所述电压输入端P1之间连通;
当G1不提供显示供电电压时,所述控制信号为高电压信号;第一反相电压信号为低电压信号,第二反相电压信号为高电压信号,第二开关子电路82控制导通所述触控供电端G2与所述电压输入端P1之间的连接,第一开关子电路81控制所述显示供电端G1与所述电压输入端P1之间断开。
图10是图9所示的显示触摸装置的至少一实施例的工作时序图。
在图10中,第一显示触控阶段t11和第二显示触控阶段t12为正常工作时间段,在所述正常工作时间段,所述显示触摸装置处于正常显示触控状态,所述显示触摸装置可以进行检测和触控检测;熄屏触控阶段t20为仅触控检测时间段,在所述仅触控检测时间段,所述显示触摸装置处于仅触控检测状态;在t11和t12,时序控制器工作,在t20,时序工作器可以不工作,但不以此为限。
在图10中,标示为Vs2的为第二触控使能信号,标示为Vs0的是所述显示触控驱动电路12接收到的触控使能信号,标号为Vg1的为G1提供的显示供电电压,标示为Vg3的为显示工作电压端G3输出的显示工作电压,标 号为控制信号端G4输出的控制信号Vg4,标号为Vp1的为P1的电位,标示为VCOM_M的为第一调制电压信号,标示为VGL_M的为第二调制电压信号。
如图11所示,在本公开所述的显示触摸装置的至少一实施例的基础上,本公开至少一实施例所述的显示触摸装置还包括控制二极管D1、第三电阻R3、第四电阻R4、第五电阻R5和第一电容C1;
R3连接于所述电压输入端P1与所述电源管理集成电路621之间;
R4的第一端与所述控制信号输出端G4电连接,R4的第二端与地端GND电连接;
R5的第一端与所述第三降压电路B3电连接(R5的第一端与B3的提供降压后的触控供电电压的端子电连接,B3通过该端子提供降压后的触控供电电压至所述触摸运算处理电路13),R5的第二端与所述显示触控驱动电路12电连接;
C1的第一端与所述触摸运算处理电路13电连接,C1的第二端与地端GND连接;
D1的阳极与显示供电端G1电连接,D1的阴极与触控供电端G2电连接;
所述第一开关子电路包括第一开关晶体管M1和第二开关晶体管M2;所述第二开关子电路包括第三开关晶体管M3;所述第一反相子电路包括第一反相晶体管M11和第一电阻R11;所述第二反相子电路包括第二反相晶体管M12和第二电阻R12;
所述第一反相晶体管M11的基极与所述控制信号输出端G4电连接,所述第一反相晶体管M11的集电极与M3的栅极电连接,所述第一反相晶体管M11的发射极与地端GND电连接;
所述第一电阻R11的第一端与M3的栅极电连接,所述第一电阻R11的第二端与所述触控供电端G2电连接;
所述第二反相晶体管M12的基极与M3的栅极电连接,所述第二反相晶体管M12的发射极与所述触控供电端G2电连接,所述第二反相晶体管M12的集电极通过所述第二电阻R12与地端GND电连接;
所述第一开关晶体管M1的栅极和所述第二开关晶体管M2的栅极都与 M12的集电极电连接;
所述第一开关晶体管M1的漏极与所述显示供电端G1电连接,所述第一开关晶体管M1的源极与所述第二开关晶体管M2的源极电连接;
所述第二开关晶体管M2的漏极与所述电压输入端P1电连接;
所述第三开关晶体管M3的源极与所述触控供电端G2电连接,所述第三开关晶体管M3的漏极与所述电压输入端P1电连接;
M1、M2和M3都为PMOS管(P型金属-氧化物-半导体晶体管),M11为npn型三极管,M12为pnp型三极管,但不以此为限。
在本公开至少一实施例中,M11和M12可以为BJT(Bipolar Junction Transistor,双极结型三极管),但不以此为限。
本公开如图11所示的至少一实施例所述的显示触摸装置在工作时,
当G1提供显示供电电压时,所述控制信号为低电压信号,第一反相电压信号为高电压信号,第二反相电压信号为低电压信号,M11关断,M3的栅极的电位为高电压,M3关断,P1与G2之间断开;M12关断,M1的栅极的电位为低电压,M1和M2都打开,P1与G1之间连通;
当G1不提供显示供电电压,G2提供触控供电电压时,所述控制信号为高电压信号;第一反相电压信号为低电压信号,第二反相电压信号为高电压信号,M11打开,M3的电位为低电压,M3打开,P1与G2之间连通;M12打开,M1的栅极的电位为高电压,M1和M2关断,P1与G1之间断开。
如图12所示,在本公开如图9所示的显示触摸装置的至少一实施例的基础上,本公开至少一实施例所述的显示触摸装置还包括控制二极管D1、第三电阻R3、第四电阻R4、第五电阻R5和第一电容C1;
D1的阳极与显示供电端G1电连接,D1的阴极与触控供电端G2电连接;
所述第一开关子电路81包括第一开关晶体管M1和第二开关晶体管M2;所述第二开关子电路82包括第三开关晶体管M3;所述第一反相子电路84包括第一反相晶体管M11和第一电阻R11;所述第二反相子电路83包括第二反相晶体管M12和第二电阻R12;
所述第一反相晶体管M11的栅极与所述控制信号输出端G4电连接,所述第一反相晶体管M11的漏极与M3的栅极电连接,所述第一反相晶体管 M11的源极与地端GND电连接;
所述第一电阻R11的第一端与M3的栅极电连接,所述第一电阻R11的第二端与所述触控供电端G2电连接;
所述第二反相晶体管M12的栅极与M3的栅极电连接,所述第二反相晶体管M12的源极与所述触控供电端G2电连接,所述第二反相晶体管M12的漏极通过所述第二电阻R12与地端GND电连接;
所述第一开关晶体管M1的栅极和所述第二开关晶体管M2的栅极都与M12的集电极电连接;
所述第一开关晶体管M1的漏极与所述显示供电端G1电连接,所述第一开关晶体管M1的源极与所述第二开关晶体管M2的源极电连接;
所述第二开关晶体管M2的漏极与所述电压输入端P1电连接;
所述第三开关晶体管M3的源极与所述触控供电端G2电连接,所述第三开关晶体管M3的漏极与所述电压输入端P1电连接;
M1、M2和M3都为PMOS管(P型金属-氧化物-半导体晶体管),M11为NMOS管(N型金属-氧化物-半导体晶体管),M12为PMOS管,但不以此为限。
本公开如图12所示的显示触摸装置的至少一实施例在工作时,
当G1提供显示供电电压时,所述控制信号为低电压信号,第一反相电压信号为高电压信号,第二反相电压信号为低电压信号,M11关断,M3的栅极的电位为高电压,M3关断,P1与G2之间断开;M12关断,M1的栅极的电位为低电压,M1和M2都打开,P1与G1之间连通;
当G1不提供显示供电电压,G2提供触控供电电压时,所述控制信号为高电压信号;第一反相电压信号为低电压信号,第二反相电压信号为高电压信号,M11打开,M3的电位为低电压,M3打开,P1与G2之间连通;M12打开,M1的栅极的电位为高电压,M1和M2关断,P1与G1之间断开。
在本公开至少一实施例中,所述的显示触摸装置还可以包括系统端;
所述触摸运算处理电路还用于在检测到显示面板的触摸事件后,向所述系统端提供唤醒信号;
所述系统端用于在接收到所述唤醒信号后,控制所述显示触控驱动电路 进行显示驱动。
在具体实施时,本公开至少一实施例所述的显示触摸装置还可以包括系统端,在显示触摸装置处于仅触控检测状态时,在显示面板被触摸后,所述触摸运算处理电路向所述系统端提供唤醒信号,所述系统端控制所述显示触控驱动电路进行显示驱动,以使得所述显示触摸装置重新回到正常显示触控状态。
如图13所示,在图1所示的显示触摸装置的至少一实施例的基础上,所述的显示触摸装置还可以包括系统端130;
所述触摸运算处理电路13与所述系统端130电连接,还用于在检测到显示面板的触摸事件后,向所述系统端130提供唤醒信号;
所述系统端130用于在接收到所述唤醒信号后,控制所述显示触控驱动电路12进行显示驱动。
当在显示触摸装置的至少一实施例在处于仅触控检测状态时,由触控供电端为驱动电路供电时,当显示面板被触摸时,可以通过触控供电电压唤醒系统端,重新显示。
图14A、图14B、图14C和图14D是本公开所述的显示触摸装置中的降压电路的至少一实施例的电路图。本发明如图14A、图14B、图14C和图14D所示的降压电路的至少一实施例都采用单路降压IC(Integrated Circuit,集成电路)。
图14A所示的降压电路的至少一实施例包括第一降压集成电路IC301、第一降压电阻R301、第二降压电阻R302、第三降压电阻R03、第四降压电阻R304、第一降压电容C301、第二降压电容C302、第三降压电容C303、第四降压电容C304、第五降压电容C305和第一降压电感L301;
IC301的第一引脚至第八引脚依次分别为:GND1引脚、EN引脚、VIN引脚、NC1引脚、LX引脚、GND2引脚、FBVOUT引脚、NC2引脚;
R301的第一端与第一工作电压端VCC_5V电连接,R301的第二端与IC301的VIN端子电连接;
C301与C302并联;R302与C303并联,R303电连接于IC301的FBVOUT引脚和地端之间;
C304与C305并联,L301与IC301的LX引脚电连接,R304的第一端与L301电连接,R304的第二端与第一电压输出端TCON_D_1V8电连接;
在图14A的至少一实施例中,EN_1V8为第一使能端。
如图14B所示的降压电路的至少一实施例包括第二降压集成电路IC302、第五降压电阻R306、第六降压电阻R307、第七降压电阻R08、第八降压电阻R309、第六降压电容C306、第七降压电容C307、第八降压电容C308、第九降压电容C309、第十降压电容C310和第二降压电感L302;
IC302的第一引脚至第八引脚依次分别为:GND1引脚、EN引脚、VIN引脚、NC1引脚、LX引脚、GND2引脚、FBVOUT引脚、NC2引脚;
R306的第一端与第一工作电压端VCC_5V电连接,R306的第二端与IC302的VIN端子电连接;
C306与C307并联;R307与C308并联,R308电连接于IC302的FBVOUT引脚和地端之间;
C309与C310并联,L302与IC302的LX引脚电连接,R309的第一端与L302电连接,R309的第二端与第二电压输出端DVDD1V0电连接;
在图14B的至少一实施例中,EN_1V0为第二使能端。
如图14C所示的降压电路的至少一实施例包括第三降压集成电路IC305、第九降压电阻R323、第十降压电阻R324、第十一降压电阻R25、第十二降压电阻R326、第十一降压电容C321、第十二降压电容C322、第十三降压电容C323、第十四降压电容C324、第十五降压电容C325和第三降压电感L305;
IC305的第一引脚至第八引脚依次分别为:GND1引脚、EN引脚、VIN引脚、NC1引脚、LX引脚、GND2引脚、FBVOUT引脚、NC2引脚;
R323的第一端与第二工作电压端VUSB电连接,R323的第二端与IC305的VIN端子电连接;
C321与C322并联;R324与C323并联,R325电连接于IC305的FBVOUT引脚和地端之间;
C324与C325并联,L305与IC305的LX引脚电连接,R326的第一端与L305电连接,R326的第二端与第三电压输出端MDV3V3电连接。
如图14D所示的降压电路的至少一实施例包括第四降压集成电路IC306、 第十三降压电阻R327、第十四降压电阻R328、第十五降压电阻R29、第十六降压电阻R330、第十六降压电容C326、第十七降压电容C327、第十八降压电容C328、第十九降压电容C329、第二十降压电容C330和第四降压电感L306;
IC306的第一引脚至第八引脚依次分别为:GND1引脚、EN引脚、VIN引脚、NC1引脚、LX引脚、GND2引脚、FBVOUT引脚、NC2引脚;
R327的第一端与第二工作电压端VUSB电连接,R327的第二端与IC306的VIN端子电连接;
C326与C327并联;R328与C328并联,R329电连接于IC306的FBVOUT引脚和地端之间;
C329与C330并联,L306与IC306的LX引脚电连接,R330的第一端与L306电连接,R330的第二端与第四电压输出端MDV1V8电连接;
在图14D中,标号为MDV3V3的为第三工作电压端。
图15是本公开所述的显示触摸装置中的降压电路的至少一实施例的电路图。在图15所示的降压电路的至少一实施例中,第五降压集成电路IC307可以为型号为RT8020的直流转换芯片,但不以此为限。
在图15所示的降压电路的至少一实施例中,IC307为多路降压集成电路。
如图15所示的降压电路的至少一实施例包括第五降压集成电路IC307、第十七电容C17、第十八电容C18、第十九电容C19、第二十电容C20、第五电感L5和第六电感L6;
IC307的第一引脚至第十二引脚分别依次为:VIN2引脚、LX2引脚、GND引脚、FB1引脚、NC1引脚、EN1引脚、VIN1引脚、LX1引脚、GND引脚、FB2引脚、NC2引脚、EN2引脚;
第一电压输入端V IN1与IC307的VIN1引脚电连接;
C17电连接于电压输入端VIN与地端GND之间,第二电压输入端V IN2与IC307的VIN2引脚电连接;
L6的第一端与C18的第一端与第五电压输出端VOUT1电连接;
L6的第二端与IC307的LX1引脚电连接,C18的第二端与地端电连接;
L5的第一端与IC307的LX2引脚电连接,L5的端与第六电压输出端 VOUT2电连接;
C19的第一端与IC307的第九引脚电连接,C19的第二端与IC307的VIN1引脚电连接;
C20的第一端与VOUT2电连接,C20的第二端与地端电连接。
图16A是本公开至少一实施例所述的显示触摸装置中的电源管理集成电路的一部分的电路图,图16B是本公开至少一实施例所述的显示触摸装置中的电源管理集成电路的一部分的电路图,图16C是本公开至少一实施例所述的显示触摸装置中的电源管理集成电路的一部分的电路图,图16A、图16B和图16C组成一个完整的电源管理集成电路。
如图16A、图16B和图16C所示,所述电源管理集成电路的至少一实施例采用PMIC(Power Management IC,电源管理集成电路)芯片IC401;
IC401的第一引脚至第四十九引脚分别依次为:COMPB引脚、VIN(VL)引脚、VINB引脚、PGNDB引脚、LXB引脚、LXB引脚、SCL引脚、SDA引脚、RESET引脚、GST引脚、ONCLK引脚、OFFCLK引脚、EO引脚、CLK1引脚、CLK2引脚、CLK3引脚、CLK4引脚、CLK5引脚、CLK6引脚、CLK7引脚、CLK8引脚、VST引脚、DCHG引脚、ODD引脚、EVEN引脚、VGL1引脚、VGL2引脚、RE引脚、VGH2引脚、VGH1引脚、DRN2引脚、LXGH引脚、PGNDGH引脚、RNTC引脚、COMPGH引脚、RSET引脚、VOM引脚、REG引脚、POS引脚、DRN1引脚、AVDD引脚、LX1引脚、LX2引脚、PGND引脚、AGND引脚、COMP引脚、SS引脚、UVLO引脚、VCC引脚、ET PAD引脚。
如图16A、图16B和图16C所示,所述电源管理集成电路的至少一实施例包括第一控制电阻R401、第二控制电阻R402、第三控制电阻R403、第四控制电阻R404、第五控制电阻R405、第六控制电阻R406、第七控制电阻R407、第八控制电阻R408、第九控制电阻R409、第十控制电阻R410、第十一控制电阻R411、第十二控制电阻R412、第十三控制电阻R413、第十四控制电阻R414、第十五控制电阻R415、第十六控制电阻R416、第十七控制电阻R417、第十八控制电阻R418、第十九控制电阻R419、第二十控制电阻R420、第二十一控制电阻R421、第二十二控制电阻R422、第二十三控制电阻R423、第 二十四控制电阻R424、第二十五控制电阻R425、第二十六控制电阻R426、第一控制电容C401、第二控制电容C402、第三控制电容C403、第四控制电容C404、第五控制电容C405、第六控制电容C406、第七控制电容C407、第八控制电容C408、第九控制电容C409、第十控制电容C410、第十一控制电容C411、第十二控制电容C412、第十三控制电容C413、第十四控制电容C414、第十五控制电容C415、第十六控制电容C416、第十七控制电容C417、第十八控制电容C418、第十九控制电容C419、第二十控制电容C420、第二十一控制电容C421、第二十二控制电容C422、第二十三控制电容C423、第二十四控制电容C424、第二十五控制电容C425、第二十六控制电容C426、第二十七控制电容C427、第二十八控制电容C428、第二十九控制电容C429、第三十控制电容C430、第一二极管D401、第二二极管D402、第三二极管D403、第一控制电感L402、第二控制电感L403和第三控制电感L404;
其中,D402和D403都为双桥二极管;
C410与R407并联,C411和R408并联,R409连接于IC401的VCOM引脚与公共电极测试端子VCOM_TEST之间;
C411连接于IC401的VCOM引脚与IC401的NEG引脚之间;
IC401的VCOM引脚与电源管理公共电极电压端VCOM_PMIC连接;
R410的第一端与第四工作电压端AVDD电连接,R410的第二端与L404的第一电连接,L404的第二端与D401的阳极电连接,R413的第一端与D401的阴极电连接,R413的第二端接入高电压信号VGH;
C414、C415和R412相互并联,R411、C412和C413相互串联;
C418、CR19和R414相互并联;R414的第一端与地端电连接,R414的第二端接入低电压信号VGL;
C422、C423和R416相互并联;R417的第一端和R417的第二端都与第五工作电压端LVGL电连接,R415的第一端和R415的第二端都接入VGL;
C416和C417相互串联,C420和C421相互串联;
D402的第一引脚与IC401的VGL1引脚电连接,D402的第二引脚与地端电连接,D402的第三引脚与C417电连接;
D403的第一引脚与第五工作电压端LVGL电连接,D403的第二引脚接 入低电压信号VGL,D403的第三引脚与C421电连接;
C416与IC401的DRN1引脚电连接,C420与IC401的DRN2引脚电连接;
C401与C402串联,R401的第一端与第六工作电压端VCC电连接,R401的第二端与L401的第一端电连接,L402的第二端与相互串联的R402、C404和C403电连接;C405、C406、C407、CR08和R404相互并联,R404的第一端与R403的第一端电连接,R403的第一端与第七工作电压端AVDD201电连接,R403的第二端与第四工作电压端AVDD电连接;AVDD201与IC401的AVDD引脚电连接;C409与R406并联,C409的第一端与IC401的POS引脚电连接,C409的第二端与地端电连接;R405的第一端与C409的第一端电连接,R405的第二端与第四工作电压端AVDD电连接;
R418、R419和R420相互串联,R418的第一端与第八工作电压端VCC_5V_Alive电连接,R418的第二端与R419电连接,C424的第一端与R418的第二端电连接,C424的第二端接地;
C425的第一端与IC401的COMP引脚电连接,C425的第二端接地;
R422的第一端与第九工作电压端DV18电连接;
R423、C429和C430相互并联,R423的第一端与R422的第二端电连接,R423的第二端接地;
L402与L403串联,L402与R422的第二端电连接,L403与IC402的LCB引脚电连接;
R421的第一端与第八工作电压端VCC_5V_Alive电连接,R421的第二端与IC401的COMPB引脚电连接,C426和C427并联;C426的第一端接地,C426的第二端与IC401的VINB引脚电连接;
C428的第一端接地,C428的第二端与IC401的VIN(VL)引脚电连接;
R424的第一端与第一控制端P_SCL电连接,R424的第二端与IC401的SCL引脚电连接;
R425的第一端与第二控制端P_SDA电连接,R425的第二端与IC401的SDA引脚电连接;
R426的第一端与第三控制端ALL_H电连接,R426的第二端与第九工作 电压端DV18电连接;
IC401的COMPB引脚与第十工作电压端COMP_BUCK。
图16D是图16A、图16B和图16C中的IC401的结构示意图。
图17B是本公开至少一实施例所述的显示触摸装置中的触摸运算处理电路的至少一实施例的一部分的结构图,图17C是本公开至少一实施例所述的显示触摸装置中的触摸运算处理电路的至少一实施例的一部分的结构图,图17B和图17C组成一个完整的触摸运算处理电路。
图17A是所述触摸运算处理电路的至少一实施例采用的MCU(微控制单元)芯片IC601的结构图。
如图17A所示,IC601包括GPIOA0引脚、GPIOA1引脚、GPIOA2引脚、GPIOA3引脚、GPIOA4引脚、GPIOA5引脚、GPIOA6引脚、GPIOA7引脚、GPIOA8引脚、GPIOA9引脚、GPIOA10引脚、GPIOA11引脚、GPIOA12引脚、GPIOA13引脚、GPIOA14引脚、GPIOA15引脚、GPIOA16引脚、GPIOA17引脚、GPIOA18引脚、GPIOA19引脚、GPIOA20引脚、GPIOA21引脚、GPIOA22引脚、GPIOA23引脚、GPIOA24引脚、GPIOA25引脚、GPIOA26引脚、GPIOA27引脚、GPIOA28引脚、GPIOA29引脚、GPIOA30引脚、GPIOA31引脚、GPIOA32引脚、GPIOA33引脚、GPIOA34引脚、GPIOA35引脚、GPIOA36引脚、GPIOA37引脚、GPIOA38引脚、GPIOA39引脚、GPIOA40引脚、GPIOA41引脚、GPIOA42引脚、GPIOA43引脚、GPIOA44引脚、GPIOA45引脚、VSS_1引脚、VSS_2引脚、VSS_3引脚、VSS_4引脚、VSS_5引脚、VSSA_1引脚、VSSA_2引脚、ATEST2引脚、ATEST1引脚、ATEST2引脚、ATEST1引脚、XSCO引脚、XSCI引脚、USB_REF引脚、USB_DM引脚、USB_DP引脚、TMODE引脚、EXTRSTN引脚、GPIOM0引脚、GPIOM1引脚、GPIOM2引脚、GPIOM3引脚、GPIOM4引脚、GPIOM5引脚、GPIOM6引脚、GPIOM7引脚、GPIOM8引脚、GPIOM9引脚、GPIOM10引脚、VDD12_1引脚、VDD12_2引脚、VDD12_3引脚、VDDIOA_1引脚、VDDIOA_2引脚、VDDIOA_3引脚、VDDIOM引脚、AVCC33_1引脚、AVCC33_2引脚、VDD33_F引脚和VDD33_U引脚。
如图17B所示,所述触摸运算处理电路的至少一实施例包括MCU芯片 IC601、第一处理电容C612、第二处理电容C613、第三处理电容C614、第四处理电容C615、第五处理电容C616、第六处理电容C617、第七处理电容C618、第九处理电容C619、第十处理电容C620、第十一处理电容C621、第十二处理电容C622、第十三处理电容C623;
GPIOA0与第一端子MSP10_CSN电连接,GPIOA1与第二端子MSP10_CLK电连接,GPIOA2与第三端子MSP10_MOSI电连接,GPIOA3与第四端子MSP10_MISO电连接,GPIOA4与第五端子MSP11_CSN电连接,GPIOA5与第六端子MSP11_CLK电连接,GPIOA6与第七端子MSP11_MOSI电连接,GPIOA7与第八端子MSP11_MISO电连接,
GPIOA8与第九端子MSP12_CSN电连接,GPIOA9与第十端子MSP12_CLK电连接,GPIOA10与第十一端子MSP12_MOSI电连接,GPIOA11与第十二端子MSP12_MISO电连接,GPIOA12与第十三端子MSP13_CSN电连接,GPIOA13与第十四端子MSP13_CLK电连接,GPIOA14与第十五端子MSP13_MOSI电连接,GPIOA15与第十六端子MSP13_MISO电连接;
C612的第一端接地,C612的第二端与MSP10_CLK电连接;
C613的第一端接地,C613的第二端与MSP10_MOSI电连接;
C614的第一端接地,C614的第二端与MSP10_MISO电连接;
C615的第一端接地,C612的第二端与MSP11_CLK电连接;
C616的第一端接地,C616的第二端与MSP11_MOSI电连接;
C617的第一端接地,C617的第二端与MSP11_MISO电连接;
C618的第一端接地,C618的第二端与MSP12_CLK电连接;
C619的第一端接地,C619的第二端与MSP12_MOSI电连接;
C620的第一端接地,C620的第二端与MSP12_MISO电连接;
C621的第一端接地,C621的第二端与MSP13_CLK电连接;
C622的第一端接地,C622的第二端与MSP13_MOSI电连接;
C623的第一端接地,C623的第二端与MSP13_MISO电连接;
IC601的GPIOA32引脚接入第一时钟信号ECLK0,IC601的GPIOA33引脚接入第二时钟信号ECLK1;
IC601的GPIOA34引脚接入第一同步信号VSYNC,IC601的GPIOA35 引脚接入第二同步信号TSYNC_T;在图17B中,标号为T-con的为时序控制器;
IC601的GPIOA36引脚与第一脉宽调制信号端PWM_SRIC电连接,IC601的GPIOA37引脚与第二脉宽调制信号端PWM_TPIC电连接;
IC601的GPIOA39引脚与第三同步信号端TSYNC_SRIC电连接,IC601的GPIOA40引脚与第四同步信号端TSYNC_TPIC电连接,IC601的GPIOA41引脚与第一复位端RESET_SRIC电连接;IC601的GPIOA42引脚接入第一指示信号LCD_ON,IC601的GPIOA26引脚与复用使能端T_MUX_EN电连接。
如图17B所示,IC601的VDDIOM引脚、IC601的AVCC33_1引脚、IC601的AVCC33_2引脚和IC601的VCC33_U引脚都分别与第一供电端MCU3V3和第二供电端MDV3V3电连接;
IC601的VDDIOA_1引脚、IC601的VDDIOA_2引脚和IC601的VDDIOA_2引脚都分别与第三供电端MCU1V8和第四供电端MDV18电连接;
IC601的VDD12_1引脚、IC601的VDD12_2引脚和IC601的VDD12_3引脚都分别与第五供电端MCU1V2和第六供电端MDV12电连接。
如图17C所示,所述触摸运算处理电路还包括第一处理二极管D601、第一处理电阻R601、第二处理电阻R602、第三处理电阻R603、第四处理电阻R604和第五处理电阻R605;
D601的阳极与IC601的GPIOM5引脚电连接,D601的阴极与R601的第一端电连接,R601的第二端与第十一电压端VDDO/E电连接;
R602的第一端与IC601的GPIOM7引脚电连接,R602的第二端接地;
R603的第一端与IC601的USB_DP引脚电连接,R603的第二端与第十二电压端VUSB_P电连接;
R604的第一端与IC601的USB_REF引脚电连接,R604的第二端接地;
R605的第一端与IC601的USB_DM引脚电连接,R605的第二端与第十三电压端VUSB_M电连接;
D601的阳极还与第十四电压端VDDO/E(M)电连接;
IC601的GPIOM0引脚与第十七端子SWCK电连接,IC601的GPIOM1引脚与第十八端子SWD电连接,IC601的GPIOM2引脚与第十八端子 MCU_SCL电连接,IC601的GPIOM3引脚与第十九端子MCU_SDA电连接,IC601的GPIOM4引脚与第十八端子MCU_INT电连接,
IC601的GPIOM7引脚与第十九端子S3_POWER_OUT电连接,IC601的GPIOM8引脚与第二十端子S3_POWER_IN电连接,IC601的GPIOM9引脚与第二十一端子PGMA_SCL电连接,IC601的GPIOM10引脚与第二十二端子PGMA_SDA电连接;
IC601的XSCI引脚与第二十三端子XI电连接,IC602的XSCI引脚与第二十四端子XO电连接;
IC601的ATEST1引脚与第二十五端子EN_LDO电连接;
IC601的VSS_1引脚、IC601的VSS_2引脚、IC601的VSS_3引脚、IC601的VSS_4引脚、IC601的VSS_5引脚、IC601的VSSA_1引脚和IC601的VSSA_2引脚都接地。
本公开实施例所述的控制方法,应用于上述的显示触摸装置,所述控制方法包括:
当触摸运算处理电路检测到显示触摸装置处于仅触控检测状态时,所述触摸运算处理电路向显示触控驱动电路提供第一触控使能信号,以控制所述显示触控驱动电路进行触控检测。
在本公开至少一实施例所述的应用于显示触摸装置的控制方法中,当所述触摸运算处理电路检测到所述显示触摸装置处于仅触控检测状态时,所述触摸运算处理电路向所述显示触控驱动电路提供第一触控使能信号,以控制所述显示触控驱动电路进行触控检测,从而能够方便的进行触控检测,便于在显示触摸装置处于休眠模式下(此时所述显示触摸装置的显示功能关闭,功耗低)时,能够通过点击屏幕利用触控功能即可唤醒系统。
可选的,所述显示触摸装置还包括栅极驱动模组;所述控制方法还包括:
在所述触摸运算处理电路检测到所述显示触摸装置处于仅触控检测状态时,所述触摸运算处理电路向栅极驱动模组提供放电控制信号,以使得所述栅极驱动模组控制所述多行栅线打开;
在所述触摸运算处理电路向所述栅极驱动模组提供放电控制信号之后,触摸运算处理电路向所述显示触控驱动电路提供所述第一触控使能信号。
在本公开至少一实施例所述的控制方法中,当所述触摸运算处理电路检测到所述显示触摸装置处于仅触控检测状态时,所述触摸运算处理电路向栅极驱动模组提供放电控制信号,以控制所述显示面板包括的所有栅线都打开,以进行放电,之后所述触摸运算处理电路再向所述显示触控驱动电路提供第一触控使能信号,以控制所述显示触控驱动电路进行触控检测,从而能够保证在显示触摸装置再次恢复显示功能时,不会发生由于无法放电而造成的显示异常现象(例如,闪烁、残像等)。
在具体实施时,本公开至少一实施例所述的显示触摸装置还包括数据驱动器,所述显示面板还包括多列数据线;本公开至少一实施例所述的控制方法还包括:
所述触摸运算处理电路在向所述栅极驱动模组提供放电控制信号时,向所述数据驱动器提供数据驱动控制信号,以使得所述数据驱动器向所述数据线提供公共电极电压信号,以使得显示面板包括的像素电路中的像素电极的电位为公共电极电压,以使得显示触摸装置再次恢复显示功能时,不会发生显示异常现象。
在本公开至少一实施例中,所述显示触摸装置还包括时序控制器;本公开至少一实施例所述的控制方法还可以包括:
在所述显示触摸装置处于仅触控检测状态时,所述时序控制器停止输出第二触控使能信号至所述触摸运算处理电路;
当所述触摸运算处理电路检测到所述时序控制器停止输出所述第二触控使能信号时,所述触摸运算处理电路判断所述显示触摸装置处于仅触控检测状态。
在实际操作时,当所述显示触摸装置处于正常显示触控状态时,所述时序控制器会向所述触摸运算处理电路提供第二触控使能信号,而当无前端显示信号输入时关闭显示部分,保留触控功能,此时所述时序控制器不向触摸运算处理电路提供第二触控使能信号,当所述触摸运算处理电路检测到所述时序控制器停止输出所述第二触控使能信号时,可以判断所述显示触摸装置处于仅触控检测状态。
在具体实施时,所述显示触摸装置还包括供电控制电路、显示供电端、 触控供电端和电源管理模组;所述电源管理模组用于根据其电压输入端输入的供电电压,为所述栅极驱动模组和所述显示触控驱动电路供电;本公开至少一实施例所述控制方法还可以包括供电控制步骤;
所述供电控制步骤包括:
当所述显示供电端提供显示供电电压时,所述供电控制电路控制所述显示供电端与所述电压输入端之间连通;
当所述显示供电端不提供显示供电电压而所述触控供电端提供触控供电电压时,所述供电控制电路控制所述触控供电端与所述电压输入端之间连通。
在本公开至少一实施例所述的控制方法中,当显示供电端提供显示供电电压时,由显示供电端为栅极驱动模组和显示触控驱动电路供电,当显示供电端不提供显示供电电压而所述触控供电端提供触控供电电压时,由所述触控供电端为栅极驱动模组和显示触控驱动电路供电,保证显示触摸装置能够正常进行触控检测操作。
可选的,所述供电控制电路包括分压子电路、信号生成子电路和供电控制子电路;
所述供电控制步骤可以具体包括:
当所述显示供电端提供显示供电电压时,所述分压子电路对所述显示供电电压进行分压,以生成并通过显示工作电压端输出显示工作电压;
所述信号生成子电路分别根据所述显示工作电压,生成并通过所述控制信号输出端输出控制信号,当所述显示工作电压大于第一预定电压时,所述信号生成子电路控制所述控制信号为第一电压信号,当所述显示工作电压小于所述第一预定电压时,所述信号生成子电路控制所述控制信号为第二电压信号;
在所述控制信号为第一电压信号时,所述供电控制子电路控制所述显示供电端与所述电压输入端之间连通,在所述控制信号为第二电压信号时,所述供电控制子电路控制所述触控供电端与所述电压输入端之间连通。
在具体实施时,所述显示触摸装置还可以包括系统端;本公开至少一实施例所述的控制方法还可以包括:
在所述显示触控驱动电路检测到显示面板的触摸事件后,所述显示触控 驱动电路向所述触摸运算处理电路提供重启指示信号;
在所述触摸运算处理电路接收到所述重启指示信号后,所述触摸运算处理电路向所述系统端提供唤醒信号;
在所述系统端接收到所述唤醒信号后,所述系统端控制所述显示触控驱动电路进行显示驱动。
在具体实施时,本公开至少一实施例所述的显示触摸装置还可以包括系统端,在显示触摸装置处于仅触控检测状态时,在显示面板被触摸后,所述显示触控驱动电路向所述触摸运算处理电路提供重启指示信号,所述触摸运算处理电路向所述系统端提供唤醒信号,所述系统端控制所述显示触控驱动电路进行显示驱动,以使得所述显示触摸装置重新回到正常显示触控状态。
本公开实施例所提供的显示触摸装置可以为手机、平板电脑、电视机、显示器、笔记本电脑、数码相框、导航仪等任何具有显示触控功能的产品或部件。
以上所述是本公开的优选实施方式,应当指出,对于本技术领域的普通技术人员来说,在不脱离本公开所述原理的前提下,还可以作出若干改进和润饰,这些改进和润饰也应视为本公开的保护范围。

Claims (22)

  1. 一种显示触摸装置,所述显示触摸装置包括显示面板、显示触控驱动电路和触摸运算处理电路,所述显示面板包括多行栅线;
    所述触摸运算处理电路用于当检测到所述显示触摸装置处于仅触控检测状态时,向所述显示触控驱动电路提供第一触控使能信号,以控制所述显示触控驱动电路进行触控检测。
  2. 如权利要求1所述的显示触摸装置,其中,还包括供电控制电路、显示供电端、触控供电端和电源管理模组;所述电源管理模组用于根据其电压输入端输入的供电电压,为所述显示触控驱动电路供电;
    所述供电控制电路分别与所述显示供电端、所述触控供电端和所述电源管理模组电连接,用于当所述显示供电端提供显示供电电压时,控制所述显示供电端与所述电压输入端之间连通,并用于当所述显示供电端不提供显示供电电压且所述触控供电端提供触控供电电压时,控制所述触控供电端与所述电压输入端之间连通。
  3. 如权利要求2所述的显示触摸装置,其中,所述供电控制电路包括分压子电路、信号生成子电路和供电控制子电路;
    所述分压子电路分别与所述显示供电端和所述信号生成子电路电连接,用于当所述显示供电端提供显示供电电压时,对所述显示供电电压进行分压,以生成并通过显示工作电压端输出显示工作电压;
    所述信号生成子电路分别与所述显示工作电压端和控制信号输出端电连接,用于根据所述显示工作电压,生成并通过所述控制信号输出端输出控制信号,当所述显示工作电压大于第一预定电压时,控制所述控制信号为第一电压信号,当所述显示工作电压小于所述第一预定电压时,控制所述控制信号为第二电压信号;
    所述供电控制子电路分别与所述控制信号输出端、所述显示供电端、所述触控供电端和所述电压输入端电连接,用于在所述控制信号为第一电压信号时,控制所述显示供电端与所述电压输入端之间连通,还用于在所述控制信号为第二电压信号时,控制所述触控供电端与所述电压输入端之间连通。
  4. 如权利要求3所述的显示触摸装置,其中,所述信号生成子电路集成于所述触摸运算处理电路中。
  5. 如权利要求3所述的显示触摸装置,其中,所述第一电压信号为低电压信号,所述第二电压信号为高电压信号;或者,所述第一电压信号为高电压信号,所述第二电压信号为低电压信号。
  6. 如权利要求3所述的显示触摸装置,其中,所述供电控制子电路包括第一开关子电路、第二开关子电路、第一反相子电路和第二反相子电路;
    所述第一反相子电路用于对所述控制信号进行反相,以得到第一反相电压信号,并将所述第一反相电压信号提供至所述第二开关子电路的控制端和所述第二反相子电路;
    所述第二反相子电路用于对所述第一反相电压信号进行反相,以得到第二反相电压信号,并将所述第二反相电压信号提供至所述第一开关子电路的控制端;
    所述第一开关子电路用于当所述第二反相电压信号为第一电压信号时,控制所述显示供电端与所述电压输入端之间连通,当所述第二反相电压信号为第二电压信号时,控制断开所述显示供电端与所述电压输入端之间的连接;
    所述第二开关子电路用于当所述第一反相电压信号为第一电压信号时,控制所述触控供电端与所述电压输入端之间连通,并当所述第一反相电压信号为第二电压信号时,控制断开所述触控供电端与所述电压输入端之间的连接。
  7. 如权利要求6所述的显示触摸装置,其中,所述第一开关子电路包括第一开关晶体管和第二开关晶体管;
    所述第一开关晶体管的控制极和所述第二开关晶体管的控制极都与所述第一开关子电路的控制端电连接;
    所述第一开关晶体管的第一极与所述显示供电端电连接,所述第一开关晶体管的第二端与所述第二开关晶体管的第一极电连接;
    所述第二开关晶体管的第二极与所述电压输入端电连接。
  8. 如权利要求6所述的显示触摸装置,其中,所述第二开关子电路包括第三开关晶体管;
    所述第三开关晶体管的第一极与所述触控供电端电连接,所述第三开关晶体管的第二极与所述电压输入端电连接。
  9. 如权利要求6所述的显示触摸装置,其中,所述第一反相子电路包括第一反相晶体管和第一电阻;
    所述第一反相晶体管的控制极与所述控制信号输出端电连接,所述第一反相晶体管的第一极与所述第二开关子电路的控制端电连接,所述第一反相晶体管的第二极与第三电压端电连接;
    所述第一电阻的第一端与第二开关子电路的控制端电连接,所述第一电阻的第二端与所述触控供电端电连接。
  10. 如权利要求6所述的显示触摸装置,其中,所述第二反相子电路包括第二反相晶体管和第二电阻;
    所述第二反相晶体管的控制极与所述第二开关子电路的控制端电连接,所述第二反相晶体管的第一极与所述触控供电端电连接,所述第二反相晶体管的第二极通过所述第二电阻与第三电压端电连接。
  11. 如权利要求1至10中任一权利要求所述的显示触摸装置,其中,还包括控制二极管;
    所述控制二极管的阳极与所述显示供电端电连接,所述控制二极管的阴极与所述触控供电端电连接。
  12. 如权利要求1至10中任一权利要求所述的显示触摸装置,其中,还包括系统端;
    所述触摸运算处理电路还用于在检测到显示面板的触摸事件后,向所述系统端提供唤醒信号;
    所述系统端用于在接收到所述唤醒信号后,控制所述显示触控驱动电路进行显示驱动。
  13. 如权利要求1至10中任一权利要求所述的显示触摸装置,其中,所述显示触摸装置还包括栅极驱动模组;
    所述触摸运算处理电路还用于在检测到所述显示触摸装置处于仅触控检测状态时,向所述栅极驱动模组提供放电控制信号,以使得所述栅极驱动模组控制所述多行栅线打开,并在向所述栅极驱动模组提供放电控制信号之后, 向所述显示触控驱动电路提供第一触控使能信号。
  14. 如权利要求13所述的显示触摸装置,其中,还包括数据驱动器;所述显示面板还包括多列数据线;
    所述触摸运算处理电路还用于在向所述栅极驱动模组提供放电控制信号时,向数据驱动器提供数据驱动控制信号,以使得所述数据驱动器向所述数据线提供公共电极电压信号。
  15. 如权利要求1至10中任一权利要求所述的显示触摸装置,其中,还包括时序控制器;
    所述时序控制器用于在所述显示触摸装置处于仅触控检测状态时停止输出第二触控使能信号至所述触摸运算处理电路;
    所述触摸运算处理电路用于当检测到所述时序控制器停止输出所述第二触控使能信号时,判断所述显示触摸装置处于仅触控检测状态。
  16. 一种控制方法,应用于如权利要求1至15中任一权利要求所述的显示触摸装置,所述控制方法包括:
    当触摸运算处理电路检测到显示触摸装置处于仅触控检测状态时,所述触摸运算处理电路向显示触控驱动电路提供第一触控使能信号,以控制所述显示触控驱动电路进行触控检测。
  17. 如权利要求16所述的控制方法,其中,所述显示触摸装置还包括供电控制电路、显示供电端、触控供电端和电源管理模组;所述电源管理模组用于根据其电压输入端输入的供电电压,为所述显示触控驱动电路供电;所述控制方法还包括供电控制步骤;
    所述供电控制步骤包括:
    当所述显示供电端提供显示供电电压时,所述供电控制电路控制所述显示供电端与所述电压输入端之间连通;
    当所述显示供电端不提供显示供电电压而所述触控供电端提供触控供电电压时,所述供电控制电路控制所述触控供电端与所述电压输入端之间连通。
  18. 如权利要求17所述的控制方法,其中,所述供电控制电路包括分压子电路、信号生成子电路和供电控制子电路;
    所述供电控制步骤具体包括:
    当所述显示供电端提供显示供电电压时,所述分压子电路对所述显示供电电压进行分压,以生成并通过显示工作电压端输出显示工作电压;
    所述信号生成子电路根据所述显示工作电压,生成并通过所述控制信号输出端输出控制信号,当所述显示工作电压大于第一预定电压时,所述信号生成子电路控制所述控制信号为第一电压信号,当所述显示工作电压小于所述第一预定电压时,所述信号生成子电路控制所述控制信号为第二电压信号;
    在所述控制信号为第一电压信号时,所述供电控制子电路控制所述显示供电端与所述电压输入端之间连通,在所述控制信号为第二电压信号时,所述供电控制子电路控制所述触控供电端与所述电压输入端之间连通。
  19. 如权利要求16至17中任一权利要求所述的控制方法,其中,所述显示触摸装置还包括系统端;所述控制方法还包括:
    在所述触摸运算处理电路检测到显示面板的触摸事件后,所述触摸运算处理电路向所述系统端提供唤醒信号;
    在所述系统端接收到所述唤醒信号后,所述系统端控制所述显示触控驱动电路进行显示驱动。
  20. 如权利要求16至18中任一权利要求所述的控制方法,其中,所述显示触摸装置还包括栅极驱动模组;所述控制方法还包括:
    在所述触摸运算处理电路检测到所述显示触摸装置处于仅触控检测状态时,所述触摸运算处理电路向栅极驱动模组提供放电控制信号,以使得所述栅极驱动模组控制所述多行栅线打开;
    在所述触摸运算处理电路向所述栅极驱动模组提供放电控制信号之后,触摸运算处理电路向所述显示触控驱动电路提供所述第一触控使能信号。
  21. 如权利要求20所述的控制方法,其中,所述显示触摸装置还包括数据驱动器,所述显示面板还包括多列数据线;所述控制方法还包括:
    所述触摸运算处理电路在向所述栅极驱动模组提供放电控制信号时,向所述数据驱动器提供数据驱动控制信号,以使得所述数据驱动器向所述数据线提供公共电极电压信号。
  22. 如权利要求16至18中任一权利要求所述的控制方法,其中,所述显示触摸装置还包括时序控制器;所述控制方法还包括:
    在所述显示触摸装置处于仅触控检测状态时,所述时序控制器停止输出第二触控使能信号至所述触摸运算处理电路;
    当所述触摸运算处理电路检测到所述时序控制器停止输出所述第二触控使能信号时,所述触摸运算处理电路判断所述显示触摸装置处于仅触控检测状态。
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