WO2024007653A1 - 折叠屏设备、角度检测方法及存储介质 - Google Patents

折叠屏设备、角度检测方法及存储介质 Download PDF

Info

Publication number
WO2024007653A1
WO2024007653A1 PCT/CN2023/087471 CN2023087471W WO2024007653A1 WO 2024007653 A1 WO2024007653 A1 WO 2024007653A1 CN 2023087471 W CN2023087471 W CN 2023087471W WO 2024007653 A1 WO2024007653 A1 WO 2024007653A1
Authority
WO
WIPO (PCT)
Prior art keywords
screen
folding
display touch
angle detection
display
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2023/087471
Other languages
English (en)
French (fr)
Other versions
WO2024007653A9 (zh
Inventor
孙建明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honor Device Co Ltd
Original Assignee
Honor Device Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Honor Device Co Ltd filed Critical Honor Device Co Ltd
Publication of WO2024007653A1 publication Critical patent/WO2024007653A1/zh
Publication of WO2024007653A9 publication Critical patent/WO2024007653A9/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/0206—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings
    • H04M1/0208—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings characterized by the relative motions of the body parts
    • H04M1/0214—Foldable telephones, i.e. with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
    • H04M1/0216—Foldable in one direction, i.e. using a one degree of freedom hinge
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/724—User interfaces specially adapted for cordless or mobile telephones
    • H04M1/72448—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions
    • H04M1/72454—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions according to context-related or environment-related conditions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2250/00—Details of telephonic subscriber devices
    • H04M2250/12—Details of telephonic subscriber devices including a sensor for measuring a physical value, e.g. temperature or motion

Definitions

  • the present application relates to the field of display technology, and in particular to a folding screen device, an angle detection method and a storage medium.
  • folding screen devices which can both display content and touch operations
  • folding screen devices with folding screens are favored by users.
  • folding screen mobile phones Take folding screen mobile phones as an example. They usually have an inner screen and an outer screen. When the inner screen of a folding screen mobile phone is closed at a certain angle, the inner screen needs to be closed and switched to the outer screen. This requires accurate detection of the closing angle of the inner screen.
  • devices (A) that simultaneously integrate accelerometer (A) and gyroscope (G) functions are provided on the mobile phone motherboard corresponding to the screen areas on both sides of the folding axis (bending area).
  • +G device that is, dual A+G devices are used to determine the closing angle of the inner screen through the data sensed by the A+G devices in the screen areas on both sides of the folding axis.
  • this dual A+G device solution has high implementation costs and is not conducive to mobile phone motherboard layout.
  • the two devices work together to produce angle detection results, when one device fails, the angle detection will fail, thus affecting the stability of the angle detection of the mobile phone.
  • this application provides a folding screen device, an angle detection method and a storage medium, so that the folding angle of the display touch screen can be detected without the use of dual A+G devices, which can not only reduce the implementation cost, but also facilitate Folding screen device motherboard layout.
  • this application provides a folding screen device.
  • the folding screen device includes: a display touch screen, a switch device, an integrated circuit IC chip and an angle detection circuit.
  • the display touch screen includes a bending area and a display touch area located outside the bending area; the display touch area is close to the TP trace of the bending area.
  • a capacitive sensor is formed by interconnecting switching devices.
  • the capacitive sensor includes an emitter and a receiving electrode located on both sides of the bending area.
  • the switching device is connected to the IC chip through a control signal line and is used to conduct conductive signals according to the first level signal sent by the IC chip.
  • the capacitive sensor is turned on according to the first level signal when the switching device is turned on.
  • the angle detection circuit is used to obtain the electric charge generated by the capacitive sensor.
  • the charge is used to determine the capacitance value of the capacitive sensor based on the charge; the IC chip is used to determine the folding angle of the display touch screen based on the capacitance value.
  • the capacitive sensor formed by interconnecting TP traces in the display touch area and the bending area through switching devices is, for example, C1 below.
  • the emitter is, for example, TxC below
  • the receiver is, for example, RxC, below.
  • the folding screen device may also include a foldable middle frame (such as the middle frame 10d mentioned below), a back shell (such as the back shell 10c mentioned below), and an outer screen (such as the back shell 10c mentioned below).
  • the external screen 10a), etc. will not be listed one by one here, and this application does not limit this.
  • the IC chip is also used to send second level signals.
  • the switching device is also used to turn off according to the second level signal.
  • the first level signal is a high level signal.
  • the second level signal is a low level signal.
  • the first level signal is a low level signal.
  • the second level signal is a high level signal.
  • the capacitance value generated by the capacitive sensor formed by TP wiring interconnection has the characteristic of changing with the change of the folding angle, and the capacitance value is usually inversely proportional to the folding angle. Therefore, before performing angle detection on the folding screen device with the above structure, the relationship between different capacitance values and different folding angles can be determined based on the characteristic that the capacitance value changes with the change of the folding angle, and then the different capacitance values can be recorded The corresponding folding angle mapping relationship, so that the folding angle of the display touch screen can be obtained based on the determined capacitance value and the predetermined mapping relationship.
  • the TP traces on both sides of the bending area of the display touch screen in the folding screen device are interconnected using switching devices to form the two poles of the capacitive sensor, and different level signals are sent through the IC chip to control the switching device to turn on or off , and when the switching device is turned on, a pulse signal is sent, causing the capacitive sensor formed by the TP wiring interconnection to generate changing charges, so that the angle detection circuit can determine the corresponding capacitance value based on the charge, and then based on the size of the capacitance value,
  • the detection of the folding angle of the display touch screen does not require the use of dual A+G devices, which not only reduces the implementation cost, but also facilitates the mainboard layout of the folding screen device.
  • the switching device includes a thin film field effect transistor TFT; wherein, every two adjacent TP lines in part or all of the TP lines in the display touch area close to the bending area are interconnected by one TFT, and all TFTs The gates are connected to the same control signal line.
  • the switching device may also be a metal oxide semiconductor field effect transistor.
  • the specific switching device may be selected according to business needs, which is not limited in this application.
  • the display touch screen is a mutual-capacitance display touch screen;
  • the mutual-capacity display touch screen includes a first TP trace and a second TP trace, and the first TP trace and
  • the folding axis set in the bending area is parallel, and the second TP trace is perpendicular to the folding axis; wherein, every two adjacent first TPs in part or all of the first TP trace in the display touch area close to the bending area
  • the wiring is interconnected through a TFT, and the gates of all TFTs are connected to the same control signal line.
  • the first TP trace is, for example, the Rx trace mentioned below
  • the second TP trace is, for example, the Tx trace mentioned below.
  • the TP traces distributed parallel to the folding axis set in the bending area will be close to the bending area as a whole, the TP traces parallel to the folding axis set in the bending area are selected for interconnection to form the two poles of the capacitive sensor to ensure The sensitivity of capacitance value detection and staying away from the edge of the screen can reduce false touches and ensure accuracy.
  • the display touch screen is a self-capacitive display touch screen;
  • the self-capacitive display screen includes a first TP trace, the first TP trace and a first TP trace provided in the bending area.
  • the folding axes are parallel; wherein, every two adjacent first TP lines in part or all of the first TP line in the display touch area close to the bending area are interconnected through a TFT, and the gates of all TFTs are connected to the same control signal lines.
  • the first TP traces are, for example, the P1 to P8 traces mentioned below.
  • the angle detection circuit includes a charge amplifier, a filter, a variable gain amplifier and an analog-to-digital converter; the reverse input end of the charge amplifier is connected to the receiving electrode, The positive input terminal of the charge amplifier is connected to ground; the input terminal of the filter is connected to the output terminal of the charge amplifier; the input terminal of the variable gain amplifier is connected to the output terminal of the filter; the input terminal of the analog/digital converter is connected to the variable gain amplifier The output terminal is connected, and the output terminal of the analog/digital converter is connected to the IC chip.
  • the capacitive sensor is, for example, C1 below
  • the emitter is, for example, TxC below
  • the receiver is, for example, RxC below
  • the filter is, for example, FILTER, below
  • the variable gain amplifier is, for example, VGA, below
  • the /-to-digital converter is, for example, the ADC mentioned below
  • the switching device is, for example, the FTF mentioned below
  • the charge amplifier can be composed of, for example, an operational amplifier and a capacitor, such as C2 below, or an operational amplifier, C2, and a resistor, such as R1 below. . See below for connections to the above devices.
  • the TFT when the IC chip sends a level signal that controls the conduction of the TFT through the signal line Cen (specifically whether it is a high-level signal or a low-level signal is determined by the switching characteristics of the TFT), the TFT is turned on and the TxC will A pulse signal is emitted while the potential of RxC remains unchanged. At this time, the current charge of capacitor C1 will change; the charge of capacitor C1 is input to the operational amplifier OA through RxC.
  • the corresponding voltage is input to Filter FILTER;
  • Filter FILTER filters the voltage, filters out the voltage not generated by the pulse signal transmitted by TxC, and inputs the filtered voltage to the variable gain amplifier VGA;
  • the variable gain amplifier VGA gains the voltage Processing, so that the voltage finally input to the analog/digital converter ADC, after being processed by the analog/digital converter ADC, the digital quantity can increase or decrease by multiples; finally, the analog/digital converter ADC will be driven by the charge and variable gain
  • the capacitance value (analog signal) determined by the voltage processed by the amplifier is converted into a digital signal and sent to the IC chip for processing, thereby achieving angle detection.
  • the charge amplifier is composed of an operational amplifier, a capacitor and a resistor; wherein, the capacitor is connected in parallel to the inverting input terminal and the output terminal of the operational amplifier, and the resistor is connected in parallel to both poles of the capacitor. .
  • the operational amplifier is, for example, the operational amplifier OA below, and the capacitor is, for example, C2 below.
  • the charge amplifier is composed of an operational amplifier and a capacitor; wherein the capacitor is connected in parallel to the inverting input terminal and the output terminal of the operational amplifier.
  • the operational amplifier is, for example, the operational amplifier OA below, the capacitor is, for example, C2 below, and the resistor is, for example, R1 below.
  • the switching device is also used to turn off according to the second level signal sent by the IC chip; wherein, after the switching device is turned off, the capacitive sensor does not work.
  • the above-mentioned capacitive sensor not working after the switch device is turned off means that the electronic device does not perform angle detection, but causes the display touch screen to enter the touch detection mode or the display mode.
  • the switching device is arranged in the bending area. In this way, there is no need to modify the preparation process of the display area of the display touch screen.
  • the bending area is located in the non-packaging area of the display touch screen, and the display touch area is located in the packaging area of the display touch screen; wherein, the display touch area is close to the TP path of the bending area.
  • the wires are interconnected in the non-encapsulated area through switching devices to form a capacitive sensor. In this way, it is easy to maintain the switching device located in the non-packaging area.
  • this application provides an angle detection method.
  • the IC chip sends a first level signal, and the switching device is turned on; the IC chip sends a pulse signal, the emitter of the capacitive sensor generates a pulse signal, and the potential of the receiving electrode of the capacitive sensor remains unchanged.
  • Generating changing charges the angle detection circuit obtains the charges generated by the capacitive sensor and determines the capacitance value of the capacitive sensor based on the charges; the IC chip determines the folding angle of the display touch screen based on the capacitance value.
  • the first level signal is, for example, a high level signal, so that it can be turned on.
  • the first level signal is, for example, a low level signal, so that it can be turned on.
  • the angle detection circuit obtains the charge generated by the capacitive sensor, and determines the capacitance value of the capacitive sensor based on the charge, including: the capacitive sensor outputs the charge to the charge amplifier through the receiving electrode; the charge amplifier obtains the charge generated by the capacitive sensor, and The charge is integrated to obtain the first voltage corresponding to the charge; the filter performs filtering on the first voltage to obtain the second voltage; the variable gain amplifier performs gain processing on the second voltage to obtain the third voltage; the analog-to-digital converter Perform analog-to-digital conversion on the capacitance value determined by the third voltage and charge to obtain a digital signal corresponding to the capacitance value.
  • the IC chip determines the folding angle of the display touch screen based on the capacitance value, including: the IC chip determines the folding angle of the display touch screen based on the capacitance value and a preset mapping relationship. , the mapping relationship records the folding angle corresponding to different capacitance values.
  • the folding angle of the display touch screen can be quickly and accurately determined through the mapping relationship.
  • the method further includes: based on the characteristic that the capacitance value changes with the change of the folding angle, determining the relationship between different capacitance values and different folding angles, and obtaining a preset mapping relationship.
  • the relationship between different capacitance values and different folding angles is determined experimentally.
  • the capacitance value is inversely proportional to the folding angle.
  • the method further includes: before arriving During the angle detection mode time period, the IC chip sends a second level signal and the switch device is turned off, so that the display touch screen enters the touch detection mode or the display mode.
  • the second level signal is, for example, a low level signal, so that it can be turned off.
  • the second level signal is, for example, a high level signal, so that it can be turned off.
  • the method also includes: after the switch device is turned on and the IC chip sends the pulse signal, if it is detected that an object touches the emitter and the emitter in the display touch screen The area where the receiving electrode is located; the current charge of the capacitive sensor is not processed.
  • the second aspect and any implementation manner of the second aspect respectively correspond to the first aspect and any implementation manner of the first aspect.
  • the technical effects corresponding to the second aspect and any implementation manner of the second aspect may be referred to the technical effects corresponding to the above-mentioned first aspect and any implementation manner of the first aspect, which will not be described again here.
  • the present application provides a computer-readable medium for storing a computer program, the computer program including instructions for performing the method in the second aspect or any possible implementation of the second aspect.
  • the third aspect and any implementation manner of the third aspect respectively correspond to the second aspect and any implementation manner of the second aspect.
  • the technical effects corresponding to the third aspect and any implementation manner of the third aspect please refer to the technical effects corresponding to the above-mentioned second aspect and any implementation manner of the second aspect, which will not be described again here.
  • the present application provides a computer program, the computer program comprising instructions for performing a method in the second aspect or any possible implementation of the second aspect.
  • the fourth aspect and any implementation manner of the fourth aspect respectively correspond to the second aspect and any implementation manner of the second aspect.
  • the technical effects corresponding to the fourth aspect and any implementation manner of the fourth aspect please refer to the technical effects corresponding to the above-mentioned second aspect and any implementation manner of the second aspect, which will not be described again here.
  • this application provides a chip, which includes a processing circuit and transceiver pins.
  • the transceiver pin and the processing circuit communicate with each other through an internal connection path, and the processing circuit performs the method in the second aspect or any possible implementation of the second aspect to control the receiving pin to receive the signal, so as to Control the sending pin to send signals.
  • the fifth aspect and any implementation manner of the fifth aspect respectively correspond to the second aspect and any implementation manner of the second aspect.
  • the technical effects corresponding to the fifth aspect and any implementation manner of the fifth aspect please refer to the technical effects corresponding to the above-mentioned second aspect and any implementation manner of the second aspect, which will not be described again here.
  • Figure 1 is one of the structural schematic diagrams of a folding screen device provided by an embodiment of the present application.
  • Figure 2 is a second structural schematic diagram of a folding screen device provided by an embodiment of the present application.
  • Figure 3 is a schematic diagram of a display touch screen provided by an embodiment of the present application.
  • Figure 4 is a schematic structural diagram of a mutual-capacitance display touch screen provided by an embodiment of the present application.
  • Figure 5 is a schematic diagram of the voltage signals and pulse signals corresponding to the two working modes of the mutual capacitance display touch screen provided by the embodiment of the present application;
  • Figure 6 is a schematic structural diagram of a self-contained display touch screen provided by an embodiment of the present application.
  • Figure 7 is a schematic diagram of the voltage signals and pulse signals corresponding to the three working modes of the self-capacitive display touch screen provided by the embodiment of the present application;
  • Figure 8 is a schematic diagram of a display touch screen encapsulation area and a non-encapsulation area provided by an embodiment of the present application
  • Figure 9 is a partial cross-sectional schematic diagram of a Oncell touch display touch screen provided by an embodiment of the present application.
  • Figure 10 is a partial cross-sectional schematic diagram of an Incell touch display touch screen provided by an embodiment of the present application.
  • Figure 11 is a schematic diagram of the angle detection circuit provided by the embodiment of the present application.
  • Figure 12 is a schematic diagram of the touch mode circuit and angle detection circuit of a mutual capacitance display touch screen provided by an embodiment of the present application;
  • Figure 13 is a schematic diagram of the display mode circuit, touch mode circuit and angle detection circuit of a self-capacitive display touch screen provided by an embodiment of the present application;
  • Figure 14 is a schematic diagram illustrating the determination of the included angle of a foldable screen mobile phone.
  • a and/or B can mean: A exists alone, A and B exist simultaneously, and they exist alone. B these three situations.
  • first and second in the description and claims of the embodiments of this application are used to distinguish different objects, rather than to describe a specific order of objects.
  • first target object, the second target object, etc. are used to distinguish different target objects, rather than to describe a specific order of the target objects.
  • multiple processing units refers to two or more processing units; multiple systems refers to two or more system.
  • Embodiments of the present application provide a folding screen device.
  • the folding screen device provided by the embodiments of the present application may be, for example, a folding screen mobile phone, a folding screen tablet computer, and other folding screen devices.
  • the embodiments of the present application do not limit the specific form of the above-mentioned folding screen device. .
  • the folding screen device is a folding screen mobile phone as an example.
  • the folding screen mobile phone 10a includes a display touch screen 10a (hereinafter referred to as: external screen), a folding shaft 10b, a rear case 10c, a middle frame 10d and a display touch screen 10e (hereinafter referred to as: internal screen).
  • the inner screen 10e may include a screen unit 10e-1 and a screen unit 10e-2
  • the middle frame 10d may include a middle frame 10d-1 surrounding the screen unit 10e-1 and a middle frame 10d- surrounding the screen unit 10e-2.
  • the outer screen 10a, the middle frame 10d-1 and the screen unit 10e-1 can form a receiving cavity
  • the rear shell 10c, the middle frame 10d-2 and the screen unit 10e-2 can also form a containing cavity. cavity.
  • Corresponding motherboards and functional devices can be installed in these two accommodation cavities respectively, and one of the accommodation cavities can also be equipped with structures such as batteries (not shown in the figure).
  • Functional devices may include, for example, display driver chips and processors. The processor sends corresponding signals to the display driver chip, so that the display driver chip determines the external screen 10a and/or the internal screen 10e for display.
  • the material of the back shell 10c may include, for example, opaque materials such as plastic, plain leather, and fiberglass, or may also include light-transmitting materials such as glass.
  • the embodiment of the present application does not limit the material of the rear case 10b.
  • the outer screen 10a and the inner screen 10e may be, for example, an organic light emitting diode (OLED) display panel or a light emitting diode (Light Emitting Diode, OLED) integrated with a touch sensor.
  • OLED organic light emitting diode
  • LED Light Emitting Diode
  • AMOLED Active Matrix Organic Light Emitting Diode
  • LED display panels include, for example, Micro-LED display panels, Mini-LED display panels, etc.
  • the embodiment of the present application does not limit the types of the outer screen 10a and the inner screen 10e.
  • the screen unit 10e-1 and the screen unit 10e-2 can be folded along the folding axis 10b so that the inner screen 10e is in different states, such as an unfolded state, a half-folded state, and a fully folded state.
  • the expanded state is such that the screen unit 10e-1, the folding axis 10b, and the screen unit 10e-2 are on the same plane, and the angle between the screen unit 10e-1 and the screen unit 10e-2 is 180°; in the semi-folded state, for example, the screen unit 10e-1, the folding axis 10b, and the screen unit 10e-2 are on different planes, and the angle between the screen unit 10e-1 and the screen unit 10e-2 is between 0° and 180°. °; in the fully folded state, for example, the screen unit 10e-1 completely overlaps the screen unit 10e-2 along the folding axis 10b, and the angle between the screen unit 10e-1 and the screen unit 10e-2 is 0°.
  • switching from the internal screen 10e to the external screen 10a, or switching from the external screen 10a to the internal screen 10e is determined based on the shape of the internal screen 10e.
  • What form the inner screen 10e is in needs to be determined by detecting the angle between the screen unit 10e-1 and the screen unit 10e-2.
  • embodiments of the present application provide a display touch screen as the inner screen 10e.
  • the two poles of the capacitive sensor are formed by interconnecting TP (touch screen) traces of the display touch screen.
  • TP touch screen
  • the A+G device integrates the accelerometer and gyroscope functions.
  • the size of the value can determine the angle between the screen unit 10e-1 and the screen unit 10e-2, and then determine the inner screen 10e form to realize switching from the inner screen 10e to the outer screen 10a, or from the outer screen 10a to the inner screen 10e. Therefore, if the display touch screen provided in this embodiment is used as the inner screen 10e, since there is no need to use dual A+G devices or other angle detection devices, angle detection can be realized based on the wiring of the display touch screen itself, so the implementation cost can be greatly reduced. , and at the same time it is beneficial to the motherboard layout.
  • angle detection can be realized based on the wiring of the display touch screen itself, so angle detection will not be caused by the failure of dual A+G devices or other angle detection devices. Function failure. That is, the stability of angle detection can be ensured.
  • the display touch screen 20 provided by this embodiment includes a bending area 20a (the area where the folding axis 10b is located in Figures 1 and 2), an interconnected electrode area 20b and a display touch area 20c.
  • the interconnected electrode area 20b includes an emitter electrode 20b-1 and a receiver electrode 20b-2
  • the display touch area 20c includes a display touch area 20c-1 and a display touch area 20c-2.
  • the emitter 20b-1 and the receiver 20b-2 are respectively located on both sides of the bending area 20a and close to the bending area 20a, so as to avoid the accidental touch of the emitter 20b-1 and the receiver 20b-2.
  • the receiving electrode 20b-2 senses changes in the capacitance value, which triggers angle detection, thereby avoiding unreasonable switching between the inner screen and the outer screen. This way, while taking into account the angle detection function, the user experience can be guaranteed as much as possible.
  • the interconnected electrode region 20b is not limited to the strip shape shown in FIG. 3 , but may also be linear or other shapes, which is not limited in this embodiment.
  • switching from the inner screen 10e to the outer screen 10a in the above embodiments means, for example, changing the display and operation of the inner screen 10e to the display and operation of the outer screen 10a; accordingly, the above implementation
  • the switching from the external screen 10a to the internal screen 10e in the example refers to changing the display and operation of the external screen 10a to the display and operation of the internal screen 10e. That is, whichever screen you switch to will display and work on that screen.
  • the display touch screen 20 is preferably AMOLED.
  • the display touch screen 20 is preferably AMOLED because AMOLED is currently a display touch screen that can be mass-produced and foldable, that is, it can realize flexible display.
  • AMOLED is currently a display touch screen that can be mass-produced and foldable, that is, it can realize flexible display.
  • the display touch screen can also be other flexible display screens that can be mass-produced, which is not limited in this embodiment.
  • TP display touch screens
  • self-capacitive TP and mutual-capacity TP include different wiring
  • the specific mutual-capacity TP has two wirings
  • the self-capacity TP has only one wiring. Therefore, for these two types of TP, think of It is necessary to interconnect through wiring to form a capacitive sensor, and then realize angle detection by detecting the capacitance.
  • the interconnection method of the wiring is different.
  • FIG. 4 a schematic diagram of a wiring interconnection structure of a mutual-capacitance TP is shown as an example.
  • the mutually capacitive TP includes horizontally distributed traces (called Tx in this embodiment, distributed at 20c-1, 20b-1, 20c-2, 20b as shown in Figure 4 Tx1 ⁇ TxN in the -2 area) and vertically distributed traces (called Rx in this embodiment, as shown in Figure 4 Rx1 ⁇ RxN distributed in the 20c-1, 20b-1, 20c-2, and 20b-2 areas ).
  • the traces distributed parallel to the folding axis provided in the bending area 20a will be close to the bending area 20a, the traces parallel to the folding axis provided in the bending area 20a are selected for interconnection to form a capacitor.
  • the two poles of the sensor can ensure the sensitivity of capacitance value detection, and being far away from the edge of the screen can reduce false touches, thereby ensuring accuracy; and the two ends of the vertically distributed traces will be far away from the bending area 20a, so if you choose to be perpendicular to the bending area 20a
  • the wiring of the folding axis is interconnected to form the two poles of the capacitive sensor.
  • the Tx lines can be interconnected to form a capacitive sensor, which is not limited in this embodiment.
  • FIG. 4 takes as an example that two adjacent Rx lines close to the bending area 20 are connected through a controllable circuit.
  • controllable circuit may include, for example, a thin film field effect transistor (TFT) and a signal line Cen.
  • TFT thin film field effect transistor
  • TFT as the switching device
  • other switching devices can also be selected, such as connection through metal oxide semiconductor field effect transistors.
  • the selection of specific switching devices can be selected according to business needs. This implementation This example does not limit this.
  • this embodiment takes the switching device as a TFT as an example.
  • the emitter 20b-1 (hereinafter represented by TxC) can be formed on the left side of the bending area 20a and close to the area close to the bending area 20, and the other areas on the left side of the bending area 20a are the display touch mentioned in the above embodiment. District 20c-1.
  • Rx1 and Rx2 are connected through TFT2.
  • the receiving electrode 20b-2 (hereinafter represented by RxC) can be formed on the right side of the bending area 20a and close to the area close to the bending area 20, and other areas on the right side of the bending area 20a are the display touch mentioned in the above embodiment. District 20c-2.
  • the above-mentioned emitter 20b-1 is formed by connecting Rx1 and Rx2 in parallel in the area close to the left side of the bending area 20a in the display touch area 20c-1 through FTF1.
  • the pole 20b-2 is formed by connecting Rx1 and Rx2 in parallel in the area close to the right side of the bending area 20a in the display touch area 20c-2 through FTF2.
  • the emitter 20b-1 is used to transmit pulse signals
  • the receiving electrode 20b-2 is used to sense signals, so that the capacitance value can be sensed.
  • multiple adjacent traces in the display touch area 20c-1 close to the left area of the bending area 20a can also be connected through multiple TFTs, and the display touch area 20c-2 close to the bending area 20a can be connected through multiple TFTs.
  • Multiple adjacent traces in the right area are connected through multiple TFTs.
  • Rx1 and Rx2 in the left area near the bending area 20a in the display touch area 20c-1 in Figure 4 are connected in parallel through a TFT, and the display touch area 20c-1 is connected in parallel through a TFT.
  • Rx2 and Rx3 in the area on the left side of the bending area 20a in the area 20c-1 are connected in parallel through a TFT
  • Rx1 and Rx2 in the area on the right side of the bending area 20a in the area 20c-2 are connected in parallel through a TFT to display the touch screen
  • Rx2 and Rx3 in the area on the right side of the bending area 20a in the area 20c-2 are connected in parallel through a TFT.
  • the adjacent traces in the left area of the display touch area 20c-1 near the bending area 20a through one or more TFTs, the adjacent wirings in the right area of the display touch area 20c-2 close to the bending area 20a are connected.
  • Adjacent traces are also connected through one or more TFTs, and the gates of all TFTs connected to the traces are commonly connected to the signal line Cen (used to send high-level signals or low-level signals). In this way, the high-level signal sent through the signal line Cen can control the TFT to close, and the low-level signal sent through the signal line Cen can control the TFT to open.
  • the traces in the display touch area 20c-1 close to the bending area 20a can be connected in parallel to form the emitter 20b-1, and the traces in the display touch area 20c-2 close to the bending area 20a can be connected in parallel. connected in parallel to form a receiving pole 20b-2.
  • the display touch area 20c-1 and the display touch area 20c-2 are folded along the bending area 20a, as the folding angle changes, the capacitance formed between the emitter 20b-1 and the receiver 20b-2 The value will change to achieve angle detection.
  • the level signal output by the signal line Cen can be output according to the switching characteristics of the selected MOS tube.
  • the PMOS tube it can be set to output a high-level signal to control the PMOS tube to turn off, and to output a low-level signal to control the PMOS tube to turn on.
  • NMOS tubes you can set it to output a low-level signal to control the PMOS tube to turn off, and to output a high-level signal to control the PMOS tube to turn on.
  • the two are usually inversely proportional, that is, the larger the folding angle, the smaller the capacitance value, and the smaller the folding angle, the larger the capacitance value.
  • the specific trigger when the inner screen 10e switches to the outer screen 10a, or switches from the outer screen 10a to the inner screen 10e according to the shape of the inner screen 10e
  • the conditions can be set according to actual business needs.
  • the folding angle is within a preset interval, switching from the inner screen 10e to the outer screen 10a is achieved, and when within another preset interval, switching from the outer screen 10a to the inner screen is achieved. 10e.
  • the capacitance value interval for switching from the inner screen 10e to the outer screen 10a, and the capacitance value interval for switching from the outer screen 10a to the inner screen 10e can be determined.
  • the bending area 20a the area where TxC is located 20b-1, or the area where RxC is located 20b-2, they all have display and touch functions, but on this basis, the bending area 20a can To realize bending, areas 20b-1 and 20b-2 can realize angle detection.
  • the Rx traces connected through TFT are not limited to two adjacent ones, but can also be multiple, as long as it is ensured that every two adjacent Rx traces are connected through the corresponding TFT , the gates of all TFTs connected to the Rx line can be connected to the same signal line Cen.
  • all TFTs connected to the Rx trace such as TFT1 and TFT2 in Figure 4
  • the gate of the signal line Cen ultimately needs to be connected to the same signal line Cen, and the other end of the signal line Cen is connected to an integrated circuit chip (Integrated Circuit Chip, IC chip) provided on the motherboard for controlling level signals.
  • integrated circuit chip Integrated Circuit Chip, IC chip
  • a low-level signal can be sent through the signal line Cen to control each TFT connected to the Rx line to be turned on and achieve parallel connection between the two poles, that is, The parallel connection between TxC and RxC allows RxC to sense when TxC emits a pulse signal, and then sense the current capacitance value to achieve angle detection.
  • each TFT connected to the Rx line can be controlled to be turned off to achieve separation between the two poles, that is, the separation between TxC and RxC, so that the touch screen can be displayed
  • Implement touch detection That is, in this case, if a change in capacitance value is detected, angle detection will not be triggered, so that the mutual capacitance TP provided in this embodiment takes into account both the touch function and the angle detection function.
  • a high level signal can be sent through the signal line Cen, thereby controlling each TFT connected to the Rx line to be turned on, achieving parallel connection between the two poles. That is, the parallel connection between TxC and RxC, so that when TxC emits a pulse signal, RxC can sense it, and then sense the current capacitance value to achieve angle detection.
  • each TFT connected to the Rx line can be controlled to be turned off to achieve separation between the two poles, that is, the separation between TxC and RxC, so that the touch screen can be displayed
  • Implement touch detection that is, if a change in capacitance value is detected in this case, angle detection will not be triggered.
  • the mutual capacitance TP since the mutual capacitance TP has a cathode dedicated to the display function, the internal wiring only needs to be divided into touch mode and angle detection mode. It can be seen from this that in this embodiment, the mutually capacitive TP is connected to the adjacent Rx traces close to the bending area 20a, so that the mutually capacitive TP traces can originally support the touch mode (touch detection). Angle detection is also supported.
  • the power-on in order for the mutual capacitance TP to support both touch mode and angle detection, the power-on can be detected based on the required display effect, the capacitive sensor formed by interconnection, or the touch sensor set.
  • the power-off speed divides the display frequency of the internal screen per second, or the refresh frequency (hereinafter collectively referred to as the display frequency), such as touch detection within a time range corresponding to a certain Hertz frequency, even if the mutual capacitance TP In touch mode, angle detection is performed in the time range corresponding to another frequency of Hz, even if the mutual capacitance TP can realize the angle detection function.
  • the display frequency corresponding to each second is (F11+F12) Hz.
  • the capacitive sensor formed by interconnection or the touch sensor set Detect the speed of power on and off.
  • the touch detection within the time T11 range corresponding to F11Hz, and the angle detection within the time T12 range corresponding to F12. Since these two modes are in time There is no interference on the screen. For example, only touch detection is performed during the T11 period, and only angle detection is performed during the T12 period.
  • the signal line Cen when the angle detection mode needs to be started, the signal line Cen sends a low-level signal to control each TFT connected to the Rx line to be turned on, realizing parallel connection between the two poles, so that the touch mode can be switched to angle detection mode.
  • the mutual capacitance TP is connected to the adjacent Rx traces close to the bending area 20a, and the different level signals sent through the signal line Cen control the turn-on and turn-off of the TFT, so that the present invention
  • touch detection and angle detection can be performed every second according to the time period shown in Figure 5, taking into account both the touch function and the angle detection function.
  • the signal line Cen transmits a high-level signal, causing the TFT in the low-level working mode to disconnect.
  • the signal line Cen also sends a pulse signal.
  • the touch sensor Detect whether there is an object touching the mutual capacitance TP, and if so, respond to the touch operation, such as opening an application. If not, within the time range T12 corresponding to F12 Hz, the signal line Cen transmits a low-level signal, causing the TFT in the low-level working mode to be turned on.
  • the emitter 20b mentioned above will be formed. -1 and the receiving electrode 20b-2, so that after the IC chip sends a pulse signal, the emitter 20b-1 will generate a pulse signal, and the receiving electrode 20b-2 will sense it, and then implement angle detection based on the sensed capacitance.
  • the inner screen is turned off and switched from the inner screen to the outer screen so that the outer screen is on. screen status. Otherwise, the current state is maintained, and at the N+1th second, touch detection and angle detection are continued according to the above cycle.
  • the above-mentioned threshold can be set according to actual needs, for example, set to 30 degrees, which is not limited in this embodiment.
  • the external screen can be turned off. screen, thereby reducing device power consumption.
  • FIG. 6 a schematic diagram of a wiring interconnection structure of a self-contained TP is shown as an example.
  • each touch unit corresponds to a separate trace.
  • the traces of a row of touch units on both sides of the bending area 20 and closest to the bending area 20 a can be selected and connected in pairs through TFTs.
  • the touch units that need to be wired connected on the left side of the bending area 20a are described as P1, P2, P3, and P4 in sequence, and the touch units that need to be wired connected on the right side of the bending area 20a are described in sequence.
  • the control units are described as P5, P6, P7, and P8 in sequence.
  • the traces corresponding to P1 and the traces corresponding to P2 can be interconnected through TFT1
  • the traces corresponding to P2 can be interconnected through TFT2.
  • the traces corresponding to P2 and the traces corresponding to P3 are interconnected, the traces corresponding to P3 and the traces corresponding to P3 are interconnected through TFT3, and the gates of TFT1, TFT2 and TFT3 are connected to the same signal Line Cen, thereby forming the emitter 20b-1 of the capacitive sensor (hereinafter represented by TxC), and other areas on the left side of the bending area 20a are the display touch area 20c-1 mentioned in the above embodiment; for the right side of the bending area 20a area, the traces corresponding to P5 and the traces corresponding to P6 can be interconnected through TFT4, the traces corresponding to P6 and the traces corresponding to P7 can be interconnected through TFT5, and the traces corresponding to P7 and P8 can be interconnected through TFT6
  • the wiring is interconnected, and the gates of TFT4, TFT5 and TFT6 are connected to the signal line Cen connecting TFT1, TFT2 and TFT3, thereby forming the receiving electrode
  • TP for self-contained TP, whether it is the bending area 20a, the area where TxC is located 20b-1, or the area where RxC is located 20b-2, they all have display and touch functions, but on this basis, the bending area 20a Bending can be achieved, and angle detection can be achieved in areas 20b-1 and 20b-2.
  • the traces connected through TFTs are not limited to one column shown in FIG. 5 , but can also be multiple columns close to the bending area 20a, or can be one row close to the bending area 20a.
  • This embodiment does not limit the partial wiring in the central area, or the partial wiring near the central area of the bending area 20a in multiple columns near the bending area 20a. Just ensure that every two adjacent traces are connected through the corresponding TFT, and the gates of all TFTs connecting the traces are connected to the same signal line Cen.
  • all TFTs connected to the accessory areas on both sides of the bending area 20a such as the gates of TFT1 to TFT6 in Figure 6, are ultimately connected to the same signal line Cen, and the other side of the signal line Cen One end is connected to an IC chip (Integrated Circuit Chip) set on the motherboard for controlling level signals.
  • IC chip Integrated Circuit Chip
  • the corresponding display frequency per second is (F21+F22+F23) Hz.
  • the capacitive sensor formed by interconnection or the set The touch sensor detects the speed of power-on and power-off.
  • the self-contained TP it is set to perform display detection within the time range T21 corresponding to F21Hz, perform touch detection within the time range T22 corresponding to F22Hz, and perform touch detection within the time range corresponding to F23 Angle detection is performed within the T23 range.
  • the signal line Cen can send different level signals according to the working time corresponding to different modes ( Figure 7 takes a TFT with low level on and high level off as an example), as in the T21 cycle, when the display mode needs to be started, the signal line Cen sends a high-level signal to control each TFT connected to the Rx line to turn off to achieve separation between the two poles. Moreover, since the display mode does not generate pulse signals, a high-level signal is sent to the signal line Cen to control each TFT connected to the Rx line to turn off. After the separation between the two poles is achieved, if no pulse signal is currently sensed, then Indicates that the current mode is switched from angle detection mode to display mode rather than touch mode.
  • the signal line Cen sends a high-level signal to control each TFT connected to the Rx line to turn off, thereby achieving separation between the two poles. If a pulse signal is currently sensed, it indicates that the current mode is switched from the angle detection mode to the touch mode display mode.
  • the signal line Cen sends a low-level signal to control each TFT connected to the Rx line to be turned on, realizing parallel connection between the two poles, so that the touch mode can be switched from Or the display mode switches to angle detection mode.
  • the self-contained TP is connected to the adjacent wiring adjacent to the bending area 20a, and the different level signals sent through the signal line Cen control the turn-on and turn-off of the TFT, so that this implementation
  • the self-contained TP provided in the example is used by the user, it can perform display detection, touch detection and angle detection respectively according to the time period shown in Figure 7 every second, taking into account both the display function and the touch function. , also taking into account the angle detection function.
  • the signal line Cen transmits a high-level signal, causing the TFT in the low-level working mode to disconnect, but the signal line Cen does not transmit a pulse signal, which is used for detection at this time.
  • the screen status such as the screen on or off function module will detect the screen status of the self-contained TP.
  • the signal line Cen transmits a high-level signal, causing the TFT in the low-level working mode to disconnect. At the same time, the signal line Cen also sends a pulse signal. At this time, the touch sensor will detect whether there is The object touches the self-contained TP, and if so, responds to the touch operation, such as opening an application. If not, within the time range T23 corresponding to F23 Hz, the signal line Cen transmits a low-level signal, causing the TFT in the low-level working mode to be turned on. At this time, the emitter 20b mentioned above will be formed. -1 and the receiving electrode 20b-2, so that after the IC chip sends a pulse signal, the emitter 20b-1 will generate a pulse signal, and the receiving electrode 20b-2 will sense it, and then implement angle detection based on the sensed capacitance.
  • the inner screen is turned off and switched from the inner screen to the outer screen so that the outer screen is on. screen status. Otherwise, the current state is maintained, and at the M+1th second, display detection, touch detection, and angle detection are continued according to the above cycle.
  • the above-mentioned threshold can be set according to actual needs, for example, set to 30 degrees, which is not limited in this embodiment.
  • the external screen can be turned off. screen, thereby reducing device power consumption.
  • the wiring interconnection method through TFT is implemented in the non-encapsulated area of the display touch screen, that is, the bend in the drawings of the above embodiment Area 20a, and the area where the emitters 20b-1 and 20b-2 formed on both sides of the bending area 20a are located correspond to the non-encapsulated area of the display touch screen, as shown in Figure 8, while the display touch area 20c-1 and the display touch The area where area 20c-2 is located corresponds to the packaging area of the display touch screen, as shown in Figure 8. It should be understood that FIG. 8 shows only the non-encapsulated area of the display touch screen and the display touch area on one side.
  • the so-called Incell refers to the method of embedding the touch panel function into the liquid crystal pixel, usually fused with the liquid crystal layer;
  • the so-called Oncell refers to the method of embedding the touch screen between the color filter substrate and the polarizer of the display screen, that is, Equipped with a touch sensor on the LCD panel.
  • this embodiment takes AMOLED as an example.
  • Incell refers to using the OLED cathode to realize TP wiring, and for display Oncell, it refers to preparing TP wiring on the OLED packaging layer.
  • FIG. 9 a partial cross-sectional schematic diagram of a Oncell touch display touch screen is shown.
  • the process flow for preparing a display touch screen with the structure shown in Figure 9 may be, for example:
  • the Buffer layer contains silicon dioxide (SiO2) and silicon nitride (SiN).
  • Magnetron sputtering is used to perform magnetron sputtering on the metal molybdenum (Mo) on the GI layer to form the gates of the TFT located in the packaging area and the non-encapsulation area (Gate shown in Figure 9). .
  • Magnetron sputtering is used to magnetron sputter the metal on the ILD layer to form a layer located on the seal.
  • the source and drain electrodes of the packaged and non-packaged areas SD shown in Figure 9).
  • the metal used to form the source electrode (Source, S) and the drain electrode (Drain, D) can be selected according to business requirements, which is not limited in this embodiment.
  • the anode of the display touch screen (Anode shown in Figure 9) is formed on the PLN layer.
  • a pixel definition layer (Pixel Design Layer, PDL) is formed in the area where the encapsulation area is located on the PLN layer (the PDL layer shown in Figure 9).
  • a thin film encapsulation layer (TFE layer shown in Figure 9) is formed in the area where the encapsulation area is located to protect the OLED screen.
  • the TP wiring in the packaging area can be connected to the TFT with the improvement of the manufacturing process of the display touch screen, the TP wiring interconnection method provided in this embodiment can also be completed in the packaging area. This embodiment Not limited.
  • FIG. 10 a partial cross-sectional schematic diagram of an Incell touch display touch screen is shown.
  • the structure of the Incell touch display touch screen from the PI layer to the EL layer is the same as the Oncell touch display touch screen shown in Figure 9.
  • the above steps (1.1 ) to step (1.11) please refer to the above steps (1.1 ) to step (1.11), as well as the preparation process and implementation process of the current mainstream AMOLED products, will not be described again here.
  • a wiring pattern is formed on the Cathode to obtain the process flow of the Cathode (TP N).
  • TP N the process flow of the Cathode
  • the magnetron sputtering method is used to form an aluminum oxide film (AL shown in Figure 10) on the PDL layer, and the magnetron sputtering method is used to form an indium tin oxide film on the AL film. (Figure 10 ITO shown).
  • film layer combinations with a high etching selectivity ratio can also be selected as AL and ITO as shown in FIG. 10 .
  • a thin film encapsulation layer (Thin Film Encapsulation) (TFE layer shown in Figure 10) is formed in the area where the encapsulation area is located to protect the OLED screen.
  • the traces that need to be interconnected in the Incell touch touch display are located on the Cathode (TP N), so in the non-package
  • the traces located at the above locations can be connected through TFT in the area (self-capacitive TP does not distinguish between trace types and is directly represented by TPN, TPN+1), so that the Incell touch touch display can implement this implementation
  • the angle detection function provided by the example.
  • embodiments of the present application also provide an angle detection circuit.
  • the angle detection circuit includes capacitor C1, capacitor C2, resistor R1, operational amplifier OA, filter FILTER, variable gain amplifier VGA, analog/digital converter ADC, IC chip, and switching device , such as TFT.
  • the IC chip is used to output high-level signals or low-level signals, and to determine the capacitance value to implement angle detection and other operations.
  • Capacitor C1 is a capacitive sensor formed by interconnecting the traces in the display touch screen through switching devices such as TFTs.
  • the emitter of capacitor C1 that is, the TxC mentioned in the above embodiment, is connected to the IC chip through a switching device such as TFT1 through the signal line Cen, and is used for high-level signals/low-level signals transmitted by switching devices such as TFT1 according to the signal line Cen.
  • a pulse signal is generated.
  • the receiving electrode of capacitor C1 that is, the RxC mentioned in the above embodiment, is connected to the IC chip through a switching device such as TFT2 through the signal line Cen, and is used for high-level signals/low-level signals transmitted by switching devices such as TFT2 according to the signal line Cen.
  • a switching device such as TFT2
  • TFT2 switching device
  • TFT2 high-level signals/low-level signals transmitted by switching devices such as TFT2 according to the signal line Cen.
  • the emitter and receiver of the capacitor C1, and the signal line Cen please refer to the description of the above embodiments, and will not be described again here.
  • the number of switching devices TFT shown in Figure 11 is not limited to two, TFT1 and TFT2. In actual applications, the number of TFTs depends on the number of connecting traces. Taking mutual capacitance TP as an example, when two adjacent Rxs are interconnected on the left and right sides of the bending area 20a, the number of TFTs in Figure 11 should be 2, that is, one TFT2 corresponding to RxC and one corresponding to RxC respectively. A TFT1 for TxC.
  • the reverse input terminal of the operational amplifier OA is connected to the RxC of the capacitor C1, the forward input terminal is connected to ground, and the output terminal Connected to the input terminal of the filter FILTER, the output terminal of the filter FILTER is connected to the input terminal of the variable gain amplifier VGA, the output terminal of the variable gain amplifier VGA is connected to the input terminal of the analog/digital converter ADC, and the analog/digital conversion The output end of the ADC is connected to the IC chip.
  • the TFT when the IC chip sends a level signal that controls the conduction of the TFT through the signal line Cen (specifically whether it is a high-level signal or a low-level signal is determined by the switching characteristics of the TFT), the TFT is turned on and the TxC will A pulse signal is emitted while the potential of RxC remains unchanged. At this time, the current charge of capacitor C1 will change; the charge of capacitor C1 is input to the operational amplifier OA through RxC.
  • the corresponding voltage is input to Filter FILTER;
  • Filter FILTER filters the voltage, filters out the voltage not generated by the pulse signal transmitted by TxC, and inputs the filtered voltage to the variable gain amplifier VGA;
  • the variable gain amplifier VGA gains the voltage Processing, so that the voltage finally input to the analog/digital converter ADC, after being processed by the analog/digital converter ADC, the digital quantity can increase or decrease by multiples; finally, the analog/digital converter ADC will be driven by the charge and variable gain
  • the voltage-determined capacitance value (analog signal) obtained by the amplifier VGA is converted into a digital signal and sent to the IC chip for processing, thereby achieving angle detection.
  • the IC chip will not only send the level signal that controls the switching device, such as TFT1 and TFT2 in Figure 11, to turn on or off through the signal line Cen. After TFT1 and TFT2 are turned on, it will also pass the signal Line Cen sends a pulse signal, causing TxC to generate a pulse signal and RxC to sense it.
  • the switching device such as TFT1 and TFT2 in Figure 11
  • the touch screen can also be coupled to the display through software, so that when the charge of capacitor C1 changes, but a touching object, such as a finger, stylus, etc., is detected at the electrodes of capacitor C1 (TxC and RxC), the current charge can be It is not used as a basis for judgment of angle detection. In this way, the impact of accidental touches on angle detection can be avoided, thereby ensuring the stability and accuracy of angle detection.
  • the touch detection circuit (30 in Figure 12) and the angle detection circuit (40 in Figure 12) share RxC and TxC. Based on what is shown in Figure 5, this embodiment still takes TFT1 and TFT2 as being turned on at a low level as an example. Therefore, when entering the detection cycle corresponding to the touch mode, the IC chip sends a high level signal, TFT1 and TFT2 are disconnected, and the angle The detection circuit 40 does not work, and the touch screen chip (TPIC) sends corresponding signals to control the switches connecting TPIC, RxC, and TxC to be in a closed state (the dotted line state in the touch detection circuit 30 in Figure 12). At this time, the touch mode circuit 30 works.
  • the IC chip when entering the angle detection cycle, the IC chip sends a low-level signal, TFT1 and TFT2 are turned on, and TPIC sends a corresponding signal to control the switch connecting TPIC, RxC, and TxC to be in an open state.
  • the touch mode circuit 30 does not work, the angle detection circuit 40 works.
  • the self-contained TP can not only support display mode, touch mode, but also angle detection, and the corresponding periods of these three functions are different and do not interfere with each other.
  • the corresponding angle detection circuit diagram is as shown in Figure 11 (40 in Figure 13).
  • the corresponding display mode circuit diagram can be, for example, as shown at 50 in Figure 13 shows that when touch detection is performed with respect to the touch detection cycle, the corresponding touch mode circuit diagram may be, for example, as shown at 30 in FIG. 13 .
  • the touch detection circuit (30 in Figure 13) and the angle detection circuit (40 in Figure 13) share RxC and TxC. Based on what is shown in Figure 7, this embodiment still takes TFT1 and TFT2 as being turned on at a low level as an example. Therefore, when entering the detection cycle corresponding to the display mode, the IC chip sends a high level signal, TFT1 and TFT2 are disconnected, and the angle The detection circuit 40 does not work.
  • the touch screen chip (TPIC) sends corresponding signals to control the switches connected to TPIC and RxC and TxC to be in an open state.
  • the power IC sends corresponding signals to control the switches connected to RxC and TxC to be closed (touch detection in Figure 13 (dotted line state) in the circuit 30, the touch mode circuit 30 does not work, the display panel driver IC (Display driver IC, DDIC) normally outputs a signal to the circuit unit Emit that drives the pixel, and Emit emits the corresponding signal according to the signal provided by the DDIC, and the driver
  • the controlled pixel Pixel works, such as the OLED turning on/off, that is, the display mode circuit 50 works.
  • the IC chip when entering the detection cycle corresponding to the touch mode, the IC chip sends a high level signal, TFT1 and TFT2 are disconnected, the angle detection circuit 40 does not work, and the touch screen chip (TPIC) sends a corresponding signal to control
  • the switch connecting TPIC to RxC and TxC is in a closed state (the dotted line state in the touch detection circuit 30 in Figure 13).
  • the power IC outputs ELVSS and controls the switch connecting RxC and TxC to be in an open state. At this time, the touch mode circuit 30 is working.
  • ELVSS mentioned in this embodiment represents the OLED display cathode potential.
  • the IC chip when entering the angle detection cycle, sends a low-level signal, TFT1 and TFT2 are turned on, and TPIC sends the corresponding signal to control the switch connecting TPIC, RxC, and TxC to be in the open state.
  • TPIC sends a corresponding signal to control the switch connected to RxC and TxC to be in an open state.
  • the touch mode circuit 30 does not work and the angle detection circuit 40 works.
  • the working principle of the angle detection circuit 40 please refer to the corresponding text part in Figure 11, and will not be described again here.
  • a folding device is a mobile phone as an example, and the following is explained by comparing it with related technologies.
  • the basic principle is to calculate the two pages of the mobile phone through the angle between the direction of gravity and the respective coordinate axes of the two accelerometers, and the rotation angle of the angular velocity meter (gyroscope) along the Y axis.
  • the included angle is the included angle formed by the left and right inner screens folded along the folding axis.
  • the left and right planes share the Y axis in the mobile phone coordinate system, so these two coordinate systems share the XOZ plane, as shown in Figure 14.
  • the angle between the projection vector of the gravity vector g on the XOZ plane and the X1OY plane, and the angle between the projection vector of the gravity vector g on the XOZ plane and the X2OY plane are the hinge angles to be calculated.
  • there is acceleration along the non-gravity direction at this time, the direction of the overall acceleration of the accelerometer is the non-gravity direction. If the acceleration direction of the accelerometer is projected, the determined angle will be inaccurate, so a gyroscope is required.
  • a stable and accurate angle preservation can be determined.
  • the dual A+G device solution requires two A+G devices to be separately arranged on the motherboard, the implementation cost is high and is not conducive to the layout of the mobile phone motherboard.
  • the solution for realizing angle detection interconnects the wiring on both sides of the bending area of the display touch screen to form the two poles of the capacitive sensor, and then detects the size of the capacitance value to realize the angle detection.
  • the detection of the folding angle of the display touch screen does not need to integrate the angle results generated by other devices, so the stability is high.
  • the interconnection of the traces on both sides of the bending area of the display touch screen in the above embodiments specifically refers to the interconnection of the TP (touch screen) traces in the display touch screen.
  • the angle detection methods provided by the above embodiments implemented by the folding screen device can also be performed by a chip system included in the folding screen device, where the chip
  • the system may include a processor.
  • the chip system can be coupled with a memory, so that when the chip system is running, it calls the computer program stored in the memory to implement the steps performed by the folding screen device.
  • the processor in the chip system may be an application processor or a non-application processor.
  • embodiments of the present application also provide a computer-readable storage medium that stores computer instructions.
  • the folding screen device causes the folding screen device to execute the above related method steps to implement the above implementation.
  • Angle detection method in the example.
  • embodiments of the present application also provide a computer program product.
  • the computer program product When the computer program product is run on a folding screen device, it causes the folding screen device to perform the above related steps to implement the angle detection method in the above embodiment.
  • embodiments of the present application also provide a chip (which may also be a component or module), which may include one or more processing circuits and one or more transceiver pins; wherein the transceiver pins and the The processing circuits communicate with each other through internal connection paths.
  • the processing circuits execute the above related method steps to implement the angle detection method in the above embodiment to control the receiving pin to receive signals and to control the sending pin to send signals.
  • the folding screen device, computer-readable storage medium, computer program product or chip provided by the embodiments of the present application are all used to execute the corresponding methods provided above. Therefore, the beneficial effects they can achieve Please refer to the beneficial effects of the corresponding methods provided above, which will not be described again here.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Human Computer Interaction (AREA)
  • Environmental & Geological Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Position Input By Displaying (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

本申请提供了一种折叠屏设备、角度检测方法及存储介质。通过将折叠屏设备中显示触摸屏弯折区两侧的TP走线，利用开关器件进行互连，进而形成电容传感器的两极，通过IC芯片发送不同的电平信号控制开关器件导通或中断，并在开关器件导通时，发送脉冲信号，使得通过TP走线互连形成的电容传感器产生变化的电荷，这样角度检测电路就可以根据电荷确定对应的电容值，进而根据电容值的大小实现对显示触摸屏折叠角度的检测，无需借助双A+G器件，不仅降低了实现成本，同时也有利于折叠屏设备主板布局。

Description

折叠屏设备、角度检测方法及存储介质
本申请要求于2022年07月05日提交中国专利局、申请号为202210784548.4、发明名称为“折叠屏设备、角度检测方法及存储介质”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及显示技术领域，尤其涉及一种折叠屏设备、角度检测方法及存储介质。
背景技术
随着屏幕技术的发展，折叠屏设备的显示触摸屏(既可以显示内容，又可以触摸操作)变得越来越大，为了方便用户使用和携带，具有折叠屏的折叠屏设备受到了用户的青睐。以折叠屏手机为例，通常具有内屏和外屏，当折叠屏手机的内屏闭合成一定角度后，需要关闭内屏，切换到外屏，这就需要精准检测内屏的闭合角度。
目前，为了实现上述功能，是通过在手机主板设置分别对应于折叠轴(弯折区)两侧的屏幕区域同时集成加速度计(Accelerometer，A)和陀螺仪(Gyroscope，G)功能的器件(A+G器件)，即采用双A+G器件，通过折叠轴两侧屏幕区域的A+G器件感知到的数据确定内屏的闭合角度。
但是，这种双A+G器件的方案，实现成本较高，也不利于手机主板布局。同时，由于两颗器件共同作业，产生角度检测结果，当一颗器件失效，便会导致角度检测失效，从而影响手机角度检测的稳定性。
发明内容
为了解决上述技术问题，本申请提供一种折叠屏设备、角度检测方法及存储介质，从而可以不借助双A+G器件，实现对显示触摸屏折叠角度的检测，既能降低实现成本，又能利于折叠屏设备主板布局。
第一方面，本申请提供一种折叠屏设备。该折叠屏设备包括：显示触摸屏、开关器件、集成电路IC芯片和角度检测电路，显示触摸屏包括弯折区，以及位于弯折区外围的显示触摸区；显示触摸区靠近弯折区的TP走线通过开关器件互连形成电容传感器，电容传感器包括分别位于弯折区两侧的发射极和接收极；开关器件通过控制信号线与IC芯片连接，用于根据IC芯片发送的第一电平信号导通；电容传感器在开关器件根据第一电平信号导通，IC芯片发送脉冲信号后，发射极产生脉冲信号，接收极电位不变，产生变化的电荷；角度检测电路用于获取电容传感器产生的电荷，并根据电荷确定电容传感器的电容值；IC芯片用于根据电容值，确定显示触摸屏的折叠角度。
其中，显示触摸区靠近弯折区的TP走线通过开关器件互连形成的电容传感器，例如为下文中的C1，发射极例如为下文中的TxC，接收极例如为下文中的RxC。
可理解的，在实际应用中，折叠屏设备还可以包括可折叠中框(如下文提及的中框10d)、后壳(如下文提及的后壳10c)、外屏(如下文提及的外屏10a)等，此处不再一一例举，本申请对此不作限制。
可理解的，在实际应用中，IC芯片还用于发送第二电平信号。
相应地，开关器件还用于根据第二电平信号关断。
示例性的，在一些实现方式中，对于在高电平下工作(导通)的开关器件，第一电平信号为高电平信号。
相应地，第二电平信号为低电平信号。
示例性的，在另一些实现方式中，对于在低电平下工作(导通)的开关器件，第一电平信号为低电平信号。
相应地，第二电平信号为高电平信号。
此外，可以理解的，通过实验发现，通过TP走线互连形成的电容传感器产生的电容值，具有跟随折叠角度的变化而变化的特性，且电容值与折叠角度通常成反比。因此，在对上述结构的折叠屏设备进行角度检测前，可以基于电容值跟随折叠角度的变化而变化的特性，确定不同电容值与不同折叠角度之间的关系，进而得到记录了不同的电容值对应的折叠角度的映射关系，这样就可以根据确定电容值和预先确定的映射关系，得到显示触摸屏的折叠角度。
这样，通过将折叠屏设备中显示触摸屏弯折区两侧的TP走线，利用开关器件进行互连，进而形成电容传感器的两极，通过IC芯片发送不同的电平信号控制开关器件导通或中断，并在开关器件导通时，发送脉冲信号，使得通过TP走线互连形成的电容传感器产生变化的电荷，这样角度检测电路就可以根据电荷确定对应的电容值，进而根据电容值的大小，实现对显示触摸屏折叠角度的检测，无需借助双A+G器件，不仅降低了实现成本，同时也有利于折叠屏设备主板布局。
根据第一方面，开关器件包括薄膜场效应晶体管TFT；其中，显示触摸区靠近弯折区的TP走线的部分或全部区域中每两条相邻的TP走线通过一个TFT互连，所有TFT的栅极接入同一控制信号线。
示例性的，在实际应用中，开关器件还可以是金属氧化物半导体场效应管，具体开关器件的选择可以根据业务需要选取，本申请对此不作限定。
根据第一方面，或者以上第一方面的任意一种实现方式，显示触摸屏为互容式显示触摸屏；互容式显示触摸屏包括第一TP走线和第二TP走线，第一TP走线与弯折区中设置的折叠轴平行，第二TP走线与折叠轴垂直；其中，显示触摸区靠近弯折区的第一TP走线的部分或全部区域中每两条相邻的第一TP走线通过一个TFT互连，所有TFT的栅极接入同一控制信号线。
其中，第一TP走线例如为下文所说的Rx走线，第二TP走线例如为下文所说的Tx走线。
由于与弯折区处设置的折叠轴平行分布的TP走线，整体都会靠近弯折区，因此选择平行于弯折区设置的折叠轴的TP走线进行互连，形成电容传感器的两极可以保证电容值检测的灵敏度，并且远离屏幕边缘可以减少误触，进而可以保证准确性。
根据第一方面，或者以上第一方面的任意一种实现方式，显示触摸屏为自容式显示触摸屏；自容式显示屏包括第一TP走线，第一TP走线与弯折区中设置的折叠轴平行；其中，显示触摸区靠近弯折区的第一TP走线的部分或全部区域中每两条相邻的第一TP走线通过一个TFT互连，所有TFT的栅极接入同一控制信号线。
其中，第一TP走线例如为下文所说的P1至P8走线。
根据第一方面，或者以上第一方面的任意一种实现方式，角度检测电路包括电荷放大器、滤波器、可变增益放大器和模/数转换器；电荷放大器的反向输入端与接收极连接，电荷放大器的正向输入端接地；滤波器的输入端与电荷放大器的输出端连接；可变增益放大器的输入端与滤波器的输出端连接；模/数转换器的输入端与可变增益放大器的输出端连接，模/数转换器的输出端与IC芯片连接。
其中，电容传感器例如为下文中的C1，发射极例如为下文中的TxC，接收极例如为下文中的RxC，滤波器例如为下文中的FILTER，可变增益放大器例如为下文中的VGA，模/数转换器例如为下文中的ADC，开关器件例如为下文中的FTF，电荷放大器例如可以由运算放大器和电容，如下文中的C2构成，或者由运算放大器、C2和电阻，如下文中的R1构成。关于上述器件的连接可以参见下文。
基于上述角度检测电路，当IC芯片通过信号线Cen发送控制TFT导通的电平信号(具体是高电平信号，还是低电平信号根据TFT的开关特性决定)后，TFT导通，TxC会发射脉冲信号，而RxC的电位保持不变，这时电容C1当前的电荷就会发生变化；电容C1的电荷经RxC输入至运算放大器OA，经运算放大器OA积分放大处理后得到对应的电压输入至滤波器FILTER；滤波器FILTER对电压进行滤波处理，滤掉不是由于TxC发射的脉冲信号产生的电压，并将滤波处理后的电压输入至可变增益放大器VGA；可变增益放大器VGA对电压进行增益处理，使得最终输入至模/数转换器ADC的电压，经模/数转换器ADC处理后，数字量能够成倍数的增加或减小；最终，模/数转换器ADC将由电荷和可变增益放大器处理后的电压确定的电容值(模拟信号)转换为数字信号发送给IC芯片进行处理，从而实现角度检测。
根据第一方面，或者以上第一方面的任意一种实现方式，电荷放大器由运算放大器、电容和电阻构成；其中，电容并联在运算放大器的反向输入端和输出端，电阻并联在电容的两极。
其中，运算放大器例如为下文中的运算放大器OA，电容例如为下文中的C2。
根据第一方面，或者以上第一方面的任意一种实现方式，电荷放大器由运算放大器和电容构成；其中，电容并联在运算放大器的反向输入端和输出端。
其中，运算放大器例如为下文中的运算放大器OA，电容例如为下文中的C2，电阻例如为下文中的R1。
可理解的，对于理想的运算放大器OA，只需要并联电容就可以构成电荷放大器，从而实现对电荷的积分处理。但是，在实际应用中，为了防止与运算放大器OA并联的电容饱和(由运算放大器OA的偏置电压导致)，因此还需要并联电阻。基于此，在运算放大器OA的反向输入端和输出端之间并联电阻R1和电容C2，基于这种结构构成的电荷放大器，不仅能够实现对电荷的积分处理，还能保证结果的准确性。
根据第一方面，或者以上第一方面的任意一种实现方式，开关器件还用于根据IC芯片发送的第二电平信号关断；其中，在开关器件关断后，电容传感器不工作。
其中，上述所说的在开关器件关断后，电容传感器不工作是指电子设备不进行角度检测，而是使显示触摸屏进入触摸检测模式或显示模式。
关于显示模式、触摸检测模式的描述可以参见下文，此处不再赘述。
根据第一方面，或者以上第一方面的任意一种实现方式，开关器件布设于弯折区内。这样，无需对显示触摸屏的显示区域的制备工艺进行改造。
根据第一方面，或者以上第一方面的任意一种实现方式，弯折区位于显示触摸屏的非封装区，显示触摸区位于显示触摸屏的封装区；其中，显示触摸区靠近弯折区的TP走线通过开关器件在非封装区互连形成电容传感器。这样，便于对位于非封装区的开关器件进行维护。
第二方面，本申请提供了一种角度检测方法。应用于如第一方面或第一方面的任意可能实现方式中所述的折叠屏设备。该方法包括：在角度检测模式时间周期时，IC芯片发送第一电平信号，开关器件导通；IC芯片发送脉冲信号，电容传感器的发射极产生脉冲信号，电容传感器的接收极电位不变，产生变化的电荷；角度检测电路获取电容传感器产生的电荷，并根据电荷确定电容传感器的电容值；IC芯片根据电容值，确定显示触摸屏的折叠角度。
其中，对于在高电平工作的开关器件，第一电平信号例如为高电平信号，这样就可以导通。
其中，对于在低电平工作的开关器件，第一电平信号例如为低电平信号，这样就可以导通。
根据第二方面，角度检测电路获取电容传感器产生的电荷，并根据电荷确定电容传感器的电容值，包括：电容传感器通过接收极将电荷输出至电荷放大器；电荷放大器获取电容传感器产生的电荷，并对电荷进行积分处理，得到电荷对应的第一电压；滤波器对第一电压进行滤波处理，得到第二电压；可变增益放大器对第二电压进行增益处理，得到第三电压；模/数转换器对由第三电压和电荷确定的电容值进行模/数转换，得到电容值对应的数字信号。
可理解的，电荷Q、电压U、电容C三者之间满足Q＝CU。基于此，通过对电荷进行处理，获得满足条件的电压，这样就可以根据电荷和电压确定电容传感器当前的电容值，进而使得IC能够根据电容值和预设的映射关系，确定折叠角度。
根据第二方面，或者以上第二方面的任意一种实现方式，IC芯片根据电容值，确定显示触摸屏的折叠角度，包括：IC芯片根据电容值和预设的映射关系，确定显示触摸屏的折叠角度，映射关系记录了不同的电容值对应的折叠角度。
这样，通过预先建立不同的电容值与折叠角度之间的映射关系，通过该映射关系便可以快速、准确的确定显示触摸屏的折叠角度。
根据第二方面，或者以上第二方面的任意一种实现方式，方法还包括：基于电容值跟随折叠角度的变化而变化的特性，确定不同电容值与不同折叠角度之间的关系，得到预设的映射关系。
示例性的，在一种实现方式中，不同电容值与不同折叠角度之间的关系通过实验确定。
根据第二方面，或者以上第二方面的任意一种实现方式，电容值与折叠角度成反比。
根据第二方面，或者以上第二方面的任意一种实现方式，方法还包括：在未到达 角度检测模式时间周期时，IC芯片发送第二电平信号，开关器件关断，以使显示触摸屏进入触摸检测模式或显示模式。
其中，对于在高电平工作的开关器件，第二电平信号例如为低电平信号，这样就可以关断。
其中，对于在低电平工作的开关器件，第二电平信号例如为高电平信号，这样就可以关断。
根据第二方面，或者以上第二方面的任意一种实现方式，方法还包括：方法还包括：在开关器件导通，IC芯片发送脉冲信号之后，如果检测到有物体触摸显示触摸屏中发射极和接收极所在的区域；对电容传感器当前的电荷不做处理。
这样，当C1的电荷发生变化，但是在C1的电极处(TxC和RxC)检测到存在触碰物，如手指、触控笔等时，当前的电荷可以不作为角度检测的判断依据，从而能够避免误触对角度检测的影响，进而保证角度检测的稳定性和准确性。
此外，由于第二方面以及第二方面的任意一种实现方式分别与第一方面以及第一方面的任意一种实现方式相对应。第二方面以及第二方面的任意一种实现方式所对应的技术效果可参见上述第一方面以及第一方面的任意一种实现方式所对应的技术效果，此处不再赘述。
第三方面，本申请提供了一种计算机可读介质，用于存储计算机程序，该计算机程序包括用于执行第二方面或第二方面的任意可能的实现方式中的方法的指令。
第三方面以及第三方面的任意一种实现方式分别与第二方面以及第二方面的任意一种实现方式相对应。第三方面以及第三方面的任意一种实现方式所对应的技术效果可参见上述第二方面以及第二方面的任意一种实现方式所对应的技术效果，此处不再赘述。
第四方面，本申请提供了一种计算机程序，该计算机程序包括用于执行第二方面或第二方面的任意可能的实现方式中的方法的指令。
第四方面以及第四方面的任意一种实现方式分别与第二方面以及第二方面的任意一种实现方式相对应。第四方面以及第四方面的任意一种实现方式所对应的技术效果可参见上述第二方面以及第二方面的任意一种实现方式所对应的技术效果，此处不再赘述。
第五方面，本申请提供了一种芯片，该芯片包括处理电路、收发管脚。其中，该收发管脚、和该处理电路通过内部连接通路互相通信，该处理电路执行第二方面或第二方面的任一种可能的实现方式中的方法，以控制接收管脚接收信号，以控制发送管脚发送信号。
第五方面以及第五方面的任意一种实现方式分别与第二方面以及第二方面的任意一种实现方式相对应。第五方面以及第五方面的任意一种实现方式所对应的技术效果可参见上述第二方面以及第二方面的任意一种实现方式所对应的技术效果，此处不再赘述。
附图说明
图1为本申请实施例提供的一种折叠屏设备的结构示意图之一；
图2为本申请实施例提供的一种折叠屏设备的结构示意图之二；
图3为本申请实施例提供的一种显示触摸屏的示意图；
图4为本申请实施例提供的一种互容式显示触摸屏的结构示意图；
图5为本申请实施例提供的互容式显示触摸屏两种工作模式对应的电压信号和脉冲信号的示意图；
图6为本申请实施例提供的一种自容式显示触摸屏的结构示意图；
图7为本申请实施例提供的自容式显示触摸屏三种工作模式对应的电压信号和脉冲信号的示意图；
图8为本申请实施例提供的一种显示触摸屏封装区和非封装区的示意图；
图9为本申请实施例提供的一种Oncell触控方式的显示触摸屏的局部剖面示意图；
图10为本申请实施例提供的一种Incell触控方式的显示触摸屏的局部剖面示意图；
图11为本申请实施例提供的角度检测电路示意图；
图12为本申请实施例提供的一种互容式显示触摸屏的触摸模式电路和角度检测电路示意图；
图13为本申请实施例提供的一种自容式显示触摸屏的显示模式电路、触摸模式电路和角度检测电路示意图示意图；
图14为示例性示出的折叠屏手机夹角的确定示意图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。
本申请实施例的说明书和权利要求书中的术语“第一”和“第二”等是用于区别不同的对象，而不是用于描述对象的特定顺序。例如，第一目标对象和第二目标对象等是用于区别不同的目标对象，而不是用于描述目标对象的特定顺序。
在本申请实施例中，“示例性的”或者“例如”等词用于表示作例子、例证或说明。本申请实施例中被描述为“示例性的”或者“例如”的任何实施例或设计方案不应被解释为比其它实施例或设计方案更优选或更具优势。确切而言，使用“示例性的”或者“例如”等词旨在以具体方式呈现相关概念。
在本申请实施例的描述中，除非另有说明，“多个”的含义是指两个或两个以上。例如，多个处理单元是指两个或两个以上的处理单元；多个系统是指两个或两个以上 的系统。
本申请实施例提供一种折叠屏设备，本申请实施例提供的折叠屏设备例如可以是折叠屏手机、折叠屏平板电脑等折叠屏设备，本申请实施例对上述折叠屏设备的具体形式不作限定。如图1、图2所示，为了方便说明，以折叠屏设备是折叠屏手机为例进行说明。
如图1、图2所示，折叠屏手机10a包括显示触摸屏10a(下文称作：外屏)、折叠轴10b、后壳10c、中框10d和显示触摸屏10e(下文称作：内屏)。其中，内屏10e又可以包括屏幕单元10e-1和屏幕单元10e-2，中框10d又可以包括围绕屏幕单元10e-1的中框10d-1和围绕屏幕单元10e-2的中框10d-2。
继续参见图1、图2，外屏10a、中框10d-1和屏幕单元10e-1可以围成容纳腔体，后壳10c、中框10d-2和屏幕单元10e-2也可以围成容纳腔体。这两个容纳腔体内可以分别设置对应的主板、功能器件，其中一个容纳腔体还可以设置电池(图中未示出)等结构。功能器件例如可以包括显示驱动芯片和处理器等。处理器向显示驱动芯片发送相应的信号，以使显示驱动芯片确定外屏10a和/或内屏10e进行显示。
此外，需要说明的是，在一些实现方式中，后壳10c的材料例如可以包括塑料、素皮、玻璃纤维等不透光材料，也可以包括玻璃等透光材料。本申请实施例对后壳10b的材料不进行限定。
此外，还需要说明的是，在一些实现方式中，外屏10a和内屏10e例如可以是集成了触摸传感器的有机发光二极管(Organic Light Emitting Diode，OLED)显示面板、发光二极管(Light Emitting Diode，LED)显示面板和有源矩阵有机发光二极管(Active Matrix Organic Light Emitting Diode，AMOLED)显示面板等，其中，LED显示面板例如包括Micro-LED显示面板、Mini-LED显示面板等。本申请实施例对外屏10a和内屏10e的类型不进行限定。
继续参见图1、图2，屏幕单元10e-1和屏幕单元10e-2可以沿折叠轴10b折叠，以使内屏10e处于不同的形态，如展开态、半折叠态、全折叠态。
示例性的，在一些实现方式中，展开态例如为屏幕单元10e-1、折叠轴10b、屏幕单元10e-2处于同一平面，屏幕单元10e-1和屏幕单元10e-2之间的夹角为180°；半折叠态例如为屏幕单元10e-1、折叠轴10b、屏幕单元10e-2处于不同平面，屏幕单元10e-1和屏幕单元10e-2之间的夹角为介于0°与180°之间；全折叠态例如为屏幕单元10e-1沿折叠轴10b与屏幕单元10e-2完全重叠，屏幕单元10e-1和屏幕单元10e-2之间的夹角为0°。
具体到实际应用中，从内屏10e切换到外屏10a，或者从外屏10a切换到内屏10e，就是根据内屏10e的形态决定的。而内屏10e处于何种形态，就需要通过检测屏幕单元10e-1和屏幕单元10e-2之间的夹角来确定。
为了解决背景技术中的问题，本申请实施例提供一种作为内屏10e的显示触摸屏，通过将该显示触摸屏的TP(触摸屏)走线互连，从而形成电容传感器的两极。这样，无需在主板设置专门用于进行角度检测的器件，如相关方案所说的中集成了加速度计和陀螺仪功能的A+G器件，通过获取走线形成的电容传感器的电容值，根据电容值的大小就可以确定屏幕单元10e-1和屏幕单元10e-2之间的夹角，进而确定内屏10e 的形态，实现从内屏10e切换到外屏10a，或者从外屏10a切换到内屏10e。故而，采用本实施例提供的显示触摸屏作为内屏10e，由于不需要借助双A+G器件，或者其他角度检测器件，基于显示触摸屏自身的走线就可以实现角度检测，因此可以大大降低实现成本，同时利于主板布局。
此外，由于不需要借助双A+G器件，或者其他角度检测器件，基于显示触摸屏自身的走线就可以实现角度检测，因此不会因双A+G器件，或者其他角度检测器件失效导致角度检测功能失效。即，可以保证角度检测的稳定性。
下面对本申请实施例提供的作为内屏10e的显示触摸屏的具体结构进行介绍。
如图3所示，本实施例提供的显示触摸屏20包括弯折区20a(图1、图2中折叠轴10b所在的区域)、互连电极区20b和显示触摸区20c。其中，互连电极区20b包括发射极20b-1和接收极20b-2，显示触摸区20c包括显示触摸区20c-1和显示触摸区20c-2。
继续参见图3，发射极20b-1和接收极20b-2分别位于弯折区20a两侧，且靠近弯折区20a的部分，这样就可以尽量避免由于用户误触导致发射极20b-1和接收极20b-2感知电容值发生变化，进而触发角度检测的情况发生，从而避免内屏和外屏之间不合理的切换，这样在兼顾角度检测功能的同时，也能尽可能保证用户体验。
此外，还需要说明的是，具体到实际应用中，互连电极区20b不局限于图3所示的长条形，还可以是线形或其他形状，本实施例对此不作限定。
此外，还需要说明的是，上述实施例中所说的从内屏10e切换到外屏10a，例如是指改内屏10e显示、工作为由外屏10a进行显示、工作；相应地，上述实施例中所说的从外屏10a切换到内屏10e，例如是指改外屏10a显示、工作为由内屏10e进行显示、工作。即，切换到哪个屏幕，就由哪个屏幕进行显示、工作。
此外，还需要说明的是，为了使显示触摸屏20能够快速实现电容值的检测，进而确定角度，在一些实现方式中，显示触摸屏20优选AMOLED。
可理解的是，在本实施例中显示触摸屏20优选AMOLED是因为，目前AMOLED是一种能够量产且能够折叠的显示触摸屏，即能够实现柔性显示。在实际应用中，如果随着折叠屏技术的发展，还有其他能够量产的柔性显示屏，显示触摸屏也可以为其他能够量产的柔性显示屏，本实施例对此不作限定。
此外，还需要说明的是，考虑到目前较为普及的显示触摸屏(下文称为：TP)的类型可以分为自容式和互容式两类。由于自容式TP和互容式TP的包括的走线不同，具体的互容式TP有两种走线，而自容式TP只有一种走线，因此对于这两种类型的TP，想要通过走线互连，形成电容传感器，进而通过检测电容实现角度检测，走线的互连方式有所不同。为了更好的理解，下面结合附图对自容式TP和互容式TP的走线互连方式进行具体介绍。
参见图4，示例性的给出一种互容式TP的走线互连结构示意图。
如图4所示，对于互容式TP包括的走线有横向分布的走线(本实施例称为Tx，如图4示出的分布于20c-1、20b-1、20c-2、20b-2区域的Tx1～TxN)和纵向分布的走线(本实施例称为Rx，如图4示出的分布于20c-1、20b-1、20c-2、20b-2区域的Rx1～RxN)。
需要说明的是，由于与弯折区20a处设置的折叠轴平行分布的走线，整体都会靠近弯折区20a因此选择平行于弯折区20a设置的折叠轴的走线进行互连，形成电容传感器的两极可以保证电容值检测的灵敏度，并且远离屏幕边缘可以减少误触，进而可以保证准确性；而垂直分布的走线两端区域会远离弯折区20a因此如果选择垂直于弯折区20a设置的折叠轴的走线进行互连，形成电容传感器的两极，电容值的检测灵敏度会降低，并且边缘部分还容易因为误触影响检测结果的转曲线。因此，在一些实现方式中，为了保证角度检测的准确性，在通过走线互连，形成电容传感器时，可以选择平行于弯折区20a设置的折叠轴的走线。继续参见图4可知，互容式TP中，横向分布的Rx走线是平行于折叠轴的，因此对于互容式TP，具体是通过将Rx走线互连，从而形成电容传感器。
示例性的，在另一些实现方式中，如果纵向分布的Tx走线是平行于折叠轴的，则可以通过将Tx走线互连，从而形成电容传感器，本实施例对此不作限定。
通过上述实施例的描述可知，为了避免用户误触，导致通过走线互连形成的电容传感器检测到的电容值发生变化，通常选择将靠近弯折区20a的走线互连。基于此，图4以将靠近弯折区20的两条相邻Rx走线通过可控电路进行连接为例。
关于上述所说的可控电路，例如可以包括薄膜场效应晶体管(Thin Film Transistor，TFT)和信号线Cen。
此外，需要说明的是，在实际应用中，除了选择TFT作为开关器件，还可以选择其他开关器件，例如通过金属氧化物半导体场效应管连接，具体开关器件的选择可以根据业务需要选取，本实施例对此不作限定。
为了便于说明，本实施例以开关器件为TFT为例。
继续参见图4，示例性的，对于弯折区20a左侧区域，将Rx1和Rx2通过TFT1进行连接。这样就可以在弯折区20a左侧，且靠近弯折区20的区域形成发射极20b-1(下文用TxC表示)，而弯折区20a左侧其他区域就是上述实施例所说的显示触摸区20c-1。
继续参见图4，示例性的，对于弯折区20a右侧区域，将Rx1和Rx2通过TFT2进行连接。这样就可以在弯折区20a右侧，且靠近弯折区20的区域形成接收极20b-2(下文用RxC表示)，而弯折区20a右侧其他区域就是上述实施例所说的显示触摸区20c-2。
继续参见图4，示例性的，具体到本实施例中，上述发射极20b-1是通过FTF1将显示触摸区20c-1中靠近弯折区20a左侧区域的Rx1和Rx2并联形成的，接收极20b-2是通过FTF2将显示触摸区20c-2中靠近弯折区20a右侧区域的Rx1和Rx2并联形成的。其中，发射极20b-1用于发射脉冲信号，接收极20b-2用来感知信号，这样就可以实现电容值的感知。
应当理解的是，上述说明仅是为了更好的理解本实施例的技术方案而列举的示例，不作为对本实施例的唯一限制。在实际应用中，也可以将显示触摸区20c-1中靠近弯折区20a左侧区域的多个相邻走线通过多个TFT进行连接，将显示触摸区20c-2中靠近弯折区20a右侧区多个相邻走线通过多个TFT进行连接。如，将图4中显示触摸区20c-1中靠近弯折区20a左侧区域的Rx1和Rx2通过一个TFT并联，将显示触摸 区20c-1中靠近弯折区20a左侧区域的Rx2和Rx3通过一个TFT并联，将显示触摸区20c-2中靠近弯折区20a右侧区域的Rx1和Rx2通过一个TFT并联，将显示触摸区20c-2中靠近弯折区20a右侧区域的Rx2和Rx3通过一个TFT并联。
由此，通过将显示触摸区20c-1中靠近弯折区20a左侧区域相邻走线通过一个或多个TFT进行连接，将显示触摸区20c-2中靠近弯折区20a右侧区域的相邻走线也通过一个或多个TFT进行连接，并将连接走线的所有TFT的栅极共同接入信号线Cen(用来发送高电平信号或低电平信号)。这样，通过信号线Cen发送的高电平信号就可以控制TFT关闭，发送的低电平信号就可以控制TFT打开。而当TFT打开时，就可以将显示触摸区20c-1中靠近弯折区20a的走线并联，进而形成发射极20b-1，将显示触摸区20c-2中靠近弯折区20a的走线并联，进而形成接收极20b-2。这种情况下，如果显示触摸区20c-1和显示触摸区20c-2沿着弯折区20a折叠，随着折叠角度的变化，发射极20b-1和接收极20b-2之间形成的电容值就会发生变化，从而实现角度检测。
相应地，信号线Cen输出的电平信号可以根据选择的MOS管的开关特性输出，例如对于PMOS管，可以设置输出高电平信号控制PMOS管关断，输出低电平信号控制PMOS管导通；对于NMOS管，则可以设置输出低电平信号控制PMOS管关断，输出高电平信号控制PMOS管导通。
应当理解的是，上述说明仅是为了更好的理解本实施例的技术方案而列举的示例，不作为对本实施例的唯一限制。
关于电容值与折叠角度的关系，通过实验可知，二者通常成反比，即折叠角度越大，电容值越小，折叠角度越小，电容值越大。基于这一特性，在采用本实施例提供的显示触摸屏20作为内屏10e，根据内屏10e的形态实现内屏10e切换到外屏10a，或从外屏10a切换到内屏10e时的具体触发条件，可以根据实际的业务需求，设置在折叠角度在一预设区间范围时，实现从内屏10e切换到外屏10a，在另一预设区间范围时，实现从外屏10a切换到内屏10e。这样根据折叠角度和电容值的对应关系，就可以确定从内屏10e切换到外屏10a的电容值区间，以及从外屏10a切换到内屏10e的电容值区间。
应当理解的是，上述说明仅是为了更好的理解本实施例的技术方案而列举的示例，不作为对本实施例的唯一限制。
此外，需要说明的是，不论是弯折区20a，还是TxC所在区域20b-1，RxC所在区域20b-2，它们都具备显示和触摸的功能，只不过在此基础上，弯折区20a可以实现弯折，区域20b-1和20b-2可以实现角度检测。
此外，还需要说明的是，在将相邻的两条Rx通过TFT进行连接时，不限定将哪一条Rx走线接入TFT的源极，哪一条Rx走线接入TFT的漏极，只要将相邻的两条Rx走线通过TFT进行连接即可。
此外，还需要说明的是，在实际应用中，通过TFT连接的Rx走线不局限与相邻的2个，还可以是多个，只要保证每2条相邻Rx走线通过对应的TFT连接，所有连接Rx走线的TFT的栅极都连接到同一个信号线Cen即可。
继续参见图4，示例性的，连接Rx走线的所有TFT，如图4中的TFT1和TFT2 的栅极最终需要接入同一根信号线Cen，而信号线Cen的另一端与设置在主板上的一个用于控制电平信号的集成电路芯片(Integrated Circuit Chip，IC芯片)连接。这样，根据TFT在高电平和低电平的工作状态，通过信号线Cen发送不同的电平信号，就可以控制TFT实现开关特性。
例如，对于在低电平导通，高电平关断的TFT，可以通过信号线Cen发送低电平信号，从而控制连接Rx走线的每一个TFT都导通，实现两极之间并联，即TxC和RxC之间的并联，这样当TxC发射脉冲信号时，RxC就能感知到，进而感知到当前的电容值，实现角度检测。
相应地，当通过信号线Cen发送高电平信号时，就可以控制连接Rx走线的每一个TFT都关断，实现两极之间分离，即TxC和RxC之间的分离，这样显示触摸屏就可以实现触摸检测。即，这种情况下如果检测到电容值变化，也不会触发角度检测，从而使得本实施例提供的互容式TP既兼顾了触摸功能，又兼顾了角度检测功能。
还例如，对于在高电平导通，低电平关断的TFT，可以通过信号线Cen发送高电平信号，从而控制连接Rx走线的每一个TFT都导通，实现两极之间并联，即TxC和RxC之间的并联，这样当TxC发射脉冲信号时，RxC就能感知到，进而感知到当前的电容值，实现角度检测。
相应地，当通过信号线Cen发送低电平信号时，就可以控制连接Rx走线的每一个TFT都关断，实现两极之间分离，即TxC和RxC之间的分离，这样显示触摸屏就可以实现触摸检测，即这种情况下如果检测到电容值变化，也不会触发角度检测。
应当理解的是，上述说明仅是为了更好的理解本实施例的技术方案而列举的示例，不作为对本实施例的唯一限制。
此外，需要说明的是，由于互容式TP其内有专门实现显示功能的阴极，因此内部的走线只需分为触摸模式和角度检测模式。由此可知，本实施例通过将互容式TP靠近弯折区20a附件相邻的Rx走线进行连接，从而使得互容式TP的走线在原本支持触摸模式(触摸检测)的基础上，还可以支持角度检测。
此外，还需要说明的是，在本实施例中，为了使互容式TP同时支持触摸模式和角度检测，可以根据需要的显示效果、互连形成的电容传感器或者设置的触摸传感器检测上电，下电的速度，将内屏每一秒的显示频率，或者刷新频率(下文统一称为显示频率)进行划分，如在某一赫兹的频率对应的时间范围内进行触摸检测，即使互容式TP处于触摸模式，在另一赫兹的频率对应的时间范围内进行角度检测，即使互容式TP可以实现角度检测功能。为了更好的理解，以下结合图5进行具体说明。
参见图5，示例性的，假设对于某一互容式TP，每一秒对应的显示频率为(F11+F12)Hz，如果根据需要的显示效果、互连形成的电容传感器或者设置的触摸传感器检测上电，下电的速度，在生产该互容式TP时，设置在F11Hz对应的时间T11范围内进行触摸检测，在F12对应的时间T12范围内进行角度检测，由于这两种模式在时间上不存在干扰，如在T11周期仅进行触摸检测，在T12周期仅进行角度检测，即便这两种模式都是通过感知脉冲信号来确定电容值的变化，但是在触摸模式的工作时间内，不会执行角度检测，在角度检测模式的工作时间内也不会执行触摸检测。因此，基于这一特性，根据不同模式对应的工作时间，由信号线Cen发送不同的电平信 号即可(图5以低电平导通，高电平关断的TFT为例)，如在T11周期，需要启动触摸模式时，由信号线Cen发送高电平信号，控制连接Rx走线的每一个TFT都关断，实现两极之间分离，这样就可以从角度检测模式切换到触摸模式。
相应地，在T12周期，需要启动角度检测模式时，由信号线Cen发送低电平信号，控制连接Rx走线的每一个TFT都导通，实现两极之间并联，这样就可以从触摸模式切换到角度检测模式。
由此，本实施例通过将互容式TP靠近弯折区20a附件相邻的Rx走线进行连接，并通过信号线Cen发送的不同电平信号控制TFT的导通和关断，从而使得本实施例提供的互容式TP在被用户使用的过程中，每一秒都可以按照图5所示的时间周期分别进行触摸检测和角度检测，既兼顾了触摸功能，又兼顾了角度检测功能。
例如，在第N秒F11Hz对应的时间T11范围内，信号线Cen传输高电平信号，使得在低电平处于工作模式的TFT断开，同时信号线Cen还发送脉冲信号，这时触摸传感器会检测是否有物体碰触互容式TP，如果有则响应于该触摸操作，例如打开某一应用。如果没有，在进入到F12赫兹对应的时间T12范围内，信号线Cen传输低电平信号，使得在低电平处于工作模式的TFT导通，这时就会形成上文中所说的发射极20b-1和接收极20b-2，这样在IC芯片发送脉冲信号后，发射极20b-1就会产生脉冲信号，而接收极20b-2就会感知到，进而根据感知到的电容实现角度检测。
相应地，如果根据检测到的电容确定屏幕单元10e-1和屏幕单元10e-2之间的夹角小于某一阈值，则熄灭内屏，并从内屏切换到外屏，使外屏处于亮屏状态。反之，则保持当前状态，在第N+1秒时，继续按照上述周期进行触摸检测和角度检测。
可理解的，上述所说的阈值，可以根据实际需要进行设置，比如设置为30度，本实施例对此不作限制。
此外，需要说明的是，在实际应用中，从内屏切换到外屏，使外屏处于亮屏状态后，如果用户在设定的时间内容，比如30秒没有对外屏进行操作，可以熄灭外屏，从而降低设备功耗。
应当理解的是，上述说明仅是为了更好的理解本实施例的技术方案而列举的示例，不作为对本实施例的唯一限制。
参见图6，示例性的给出一种自容式TP的走线互连结构示意图。
如图6所示，对于自容式TP仅包括一种走线。其中，每一个触控单元都对应一条单独的走线。
同样，为了避免用户误触，导致通过走线互连形成的电容传感器检测到的电容值发生变化，通常选择将靠近弯折区20a的走线互连。如图6所示，例如可以选择弯折区20两侧，最靠近弯折区20a的一列触控单元的走线，通过TFT两两相连。
继续参见图6，为了便于说明，将弯折区20a左侧需要进行走线连接的触控单元依次描述为P1、P2、P3、P4，将弯折区20a右侧需要进行走线连接的触控单元依次描述为P5、P6、P7、P8。相应地，按照相邻两条走线接入同一个TFT的连接要求，对于弯折区20a左侧区域，可以通过TFT1将P1对应的走线和P2对应的走线进行互连，通过TFT2将P2对应的走线和P3对应的走线进行互连，通过TFT3将P3对应的走线和P3对应的走线进行互连，并将TFT1、TFT2和TFT3的栅极连接到同一根信号 线Cen，从而形成电容传感器的发射极20b-1(下文用TxC表示)，而弯折区20a左侧其他区域就是上述实施例所说的显示触摸区20c-1；对于弯折区20a右侧区域，可以通过TFT4将P5对应的走线和P6对应的走线进行互连，通过TFT5将P6对应的走线和P7对应的走线进行互连，通过TFT6将P7对应的走线和P8对应的走线进行互连，并将TFT4、TFT5和TFT6的栅极连接到连接TFT1、TFT2和TFT3的信号线Cen，从而形成电容传感器的接收极20b-2(下文用RxC表示)，而弯折区20a左侧其他区域就是上述实施例所说的显示触摸区20c-2。
同样，对于自容式TP，不论是弯折区20a，还是TxC所在区域20b-1，RxC所在区域20b-2，它们都具备显示和触摸的功能，只不过在此基础上，弯折区20a可以实现弯折，区域20b-1和20b-2可以实现角度检测。
此外，还需要说明的是，在将相邻的两条走线通过TFT进行连接时，不限定将哪一条走线接入TFT的源极，哪一条走线接入TFT的漏极，只要将相邻的两条走线通过TFT进行连接即可。
此外，还需要说明的是，在实际应用中，通过TFT连接的走线不局限于图5中示出一列，也可以靠近弯折区20a的多列，还可以是一列中靠近弯折区20a中心区域的部分走线，或者靠近弯折区20a的多列中靠近弯折区20a中心区域的部分走线，本实施例对此不作限定。只要保证每2条相邻走线通过对应的TFT连接，所有连接走线的TFT的栅极都连接到同一个信号线Cen即可。
继续参见图6，示例性的，连接弯折区20a两侧附件区域走线的所有TFT，如图6中的TFT1～TFT6的栅极最终接入同一根信号线Cen，而信号线Cen的另一端与设置在主板上的一个用于控制电平信号的IC芯片(Integrated Circuit Chip)连接。这样，根据TFT在高电平和低电平的工作状态，通过信号线Cen发送不同的电平信号，就可以控制TFT实现开关特性。
关于自容式TP中，通过信号线Cen传输IC芯片发送的不同电平信号，进而控制TFT1～TFT6实现开关特性的细节可以参见上述互容式TP实施例的描述，此处不再赘述。
此外，需要说明的是，对于互容式TP，其内有专门实现显示功能的阴极，因此内部的走线只需分为触摸模式和角度检测模式，而对于自容式TP，存在一些将用于显示的阴极作为触摸电极，即走线集成在该阴极，而该阴极通常靠近弯折区20a。由此可知，本实施例通过将自容式TP靠近弯折区20a附件相邻的走线(既兼具显示功能，又兼具触摸功能的阴极)进行连接，从而使得自容式TP的阴极在原本支持触摸模式(触摸检测)和显示模式的基础上，还可以支持角度检测。为了更好的理解，以下结合图7进行具体说明。
参见图7，示例性的，假设对于某一自容式TP，每一秒对应的显示频率为(F21+F22+F23)Hz，如果根据需要的显示效果、互连形成的电容传感器或者设置的触摸传感器检测上电，下电的速度，在生产该自容式TP时，设置在F21Hz对应的时间T21范围内进行显示检测，在F22Hz对应的时间T22范围内进行触摸检测，在F23对应的时间T23范围内进行角度检测，由于这三种模式在时间上不存在干扰，如在T21周期仅进行显示，在T22周期仅进行触摸检测，在T23周期仅进行角度检测，即便触 摸检测和角度检测都是通过感知脉冲信号来确定电容值的变化，但是在触摸模式的工作时间内，不会执行角度检测，在角度检测模式的工作时间内也不会执行触摸检测。因此，基于这一特性，根据不同模式对应的工作时间，由信号线Cen发送不同的电平信号即可(图7以低电平导通，高电平关断的TFT为例)，如在T21周期，需要启动显示模式时，由信号线Cen发送高电平信号，控制连接Rx走线的每一个TFT都关断，实现两极之间分离。并且，由于显示模式不产生脉冲信号，因此在信号线Cen发送高电平信号，控制连接Rx走线的每一个TFT都关断，实现两极之间分离后，如果当前没有感知到脉冲信号，则表明当前是从角度检测模式切换到显示模式而非触摸模式。
相应地，在T22周期，需要启动触摸模式时，由信号线Cen发送高电平信号，控制连接Rx走线的每一个TFT都关断，实现两极之间分离。如果当前感知到脉冲信号，则表明当前是从角度检测模式切换到触摸模式显而非示模式。
相应地，在T23周期，需要启动角度检测模式时，由信号线Cen发送低电平信号，控制连接Rx走线的每一个TFT都导通，实现两极之间并联，这样就可以从触摸模式，或者显示模式切换到角度检测模式。
由此，本实施例通过将自容式TP靠近弯折区20a附件相邻的走线进行连接，并通过信号线Cen发送的不同电平信号控制TFT的导通和关断，从而使得本实施例提供的自容式TP在被用户使用的过程中，每一秒都可以按照图7所示的时间周期分别进行显示检测、触摸检测和角度检测，既兼顾了显示功能，又兼顾了触摸功能，还兼顾了角度检测功能。
例如，在第M秒F21Hz对应的时间T21范围内，信号线Cen传输高电平信号，使得在低电平处于工作模式的TFT断开，但信号线Cen不传输脉冲信号，这时用于检测屏幕状态，如亮屏或熄灭的功能模块就会检测自容式TP的屏幕状态。
在进入到F22Hz对应的时间T22范围内，信号线Cen传输高电平信号，使得在低电平处于工作模式的TFT断开，同时信号线Cen还发送脉冲信号，这时触摸传感器会检测是否有物体碰触自容式TP，如果有则响应于该触摸操作，例如打开某一应用。如果没有，在进入到F23赫兹对应的时间T23范围内，信号线Cen传输低电平信号，使得在低电平处于工作模式的TFT导通，这时就会形成上文中所说的发射极20b-1和接收极20b-2，这样在IC芯片发送脉冲信号后，发射极20b-1就会产生脉冲信号，而接收极20b-2就会感知到，进而根据感知到的电容实现角度检测。
相应地，如果根据检测到的电容确定屏幕单元10e-1和屏幕单元10e-2之间的夹角小于某一阈值，则熄灭内屏，并从内屏切换到外屏，使外屏处于亮屏状态。反之，则保持当前状态，在第M+1秒时，继续按照上述周期进行显示检测、触摸检测和角度检测。
可理解的，上述所说的阈值，可以根据实际需要进行设置，比如设置为30度，本实施例对此不作限制。
此外，需要说明的是，在实际应用中，从内屏切换到外屏，使外屏处于亮屏状态后，如果用户在设定的时间内容，比如30秒没有对外屏进行操作，可以熄灭外屏，从而降低设备功耗。
应当理解的是，上述说明仅是为了更好的理解本实施例的技术方案而列举的示 例，不作为对本实施例的唯一限制。
此外，需要说明的是，不论是互容式TP，还是自容式TP，通过TFT实现走线互连的方式都是在显示触摸屏的非封装区实现的，即上述实施例附图中弯折区20a，以及弯折区20a两侧形成的发射极20b-1和20b-2所在的区域对应的是显示触摸屏的非封装区，如图8所示，而显示触摸区20c-1和显示触摸区20c-2所在的区域对应的是显示触摸屏的封装区，如图8所示。应当理解的是，图8示出的仅为显示触摸屏的非封装区和一侧的显示触摸区。
此外，还需要说明的是，在实际应用中，不论是互容式TP，还是自容式TP，由于其支持的触摸方式的不同，比如Oncell触摸方式和Incell触摸方式，其制备工艺也会不相同，进而导致本实施例中需要进行互连的走线分布的位置不同。因此，通过确定显示触摸屏的触摸方式，就可以确定在封装区的哪一层中完成走线互连。
所谓Incell是指将触摸面板功能嵌入到液晶像素中的方法，一般是与液晶层融合在一起；所谓Oncell是指将触摸屏嵌入到显示屏的彩色滤光片基板和偏光片之间的方法，即在液晶面板上配触摸传感器。
为了便于说明，本实施例以AMOLED为例，对于AMOLED显示Incell是指利用OLED阴极实现TP走线，显示Oncell是指在OLED封装层上制备TP走线。
为了更好的理解需要互连的TP走线在AMOLED类型的显示触摸屏中的位置，以下结合图9和图10分别以Oncell触摸方式的显示触摸屏的制备和Incell触摸方式的显示触摸屏的制备方式来介绍这两种触摸方式的显示触摸屏的结构。
参见图9，示例性的给出一种Oncell触控方式的显示触摸屏的局部剖面示意图。
示例性的，在一些可行的实现方式中，制备图9所示结构的显示触摸屏的工艺流程，例如可以是：
(1.1)采用高分子材料聚酰亚胺(polyimide，PI)经过旋涂、烘烤形成高分子薄膜，进而将形成的该高分子薄膜作为Oncell触控方式的显示触摸屏的基底(图9所示的PI层)。
(1.2)采用等离子体增强化学的气相沉积法(Plasma Enhanced Chemical Vapor Deposition，PECVD)在PI层上沉积形成缓冲层(图9所示的Buffer层)，以起到保护上层图层的作用。
示例性的，在一种可行的实现方式中，Buffer层中包含了二氧化硅(SiO2)和氮化硅(SiN)。
(1.3)采用PECVD在Buffer层上对SiO2沉积形成栅极绝缘层(Gate Insulation，GI)(图9所示的GI层)。
(1.4)在GI层中分别形成位于封装区和非封装区的低温多晶硅层(Poly-si)(图9所示的P-Si层)，作为显示驱动电路的TFT的有源层。
(1.5)采用磁控溅射的方法在GI层上对金属钼(Molybdenum，Mo)进行磁控溅射，分别形成位于封装区和非封装区的TFT的栅极(图9所示的Gate)。
(1.6)采用PEVCVD在GI层上对SiO2和SiN进行沉积，形成层间介质层(图9所示的ILD层)。
(1.7)采用磁控溅射的方法在ILD层上对金属进行磁控溅射，分别形成位于封 装区和非封装区的源极和漏极(图9所示的SD)。
可理解的，形成源极(Source，S)和漏极(Drain，D)时所使用的金属，可以根据业务需求选择，本实施例对此不作限定。
(1.8)在ILD层上形成平坦化层(Planarization layer，PLN)(图9所示的PLN层)。
(1.9)在PLN层上形成显示触摸屏的阳极(图9所示的Anode)。
(1.10)利用能够定义显示触摸屏像素大小的高分子材料，在PLN层上封装区所在的区域形成像素定义层(Pixel Design Layer，PDL)(图9所示的PDL层)。
(1.11)对Anode所在位置的PDL层进行刻蚀，暴露出Anode，并在Anode上形成电致发光层(图9所示的EL层)。
(1.12)在EL层上形成显示触摸屏的阴极(图9所示的Cathode)，这样通过在Anode上形成EL层，在EL层上形成Cathode，就可以得到有机发光二极管(OLED)。
(1.13)在Cathode之上，封装区所在的区域形成薄膜封装层(Thin Film Encapsulation)(图9所示的TFE层)，以保护OLED屏。
(1.14)在TFE层上制备TP的金属走线(如实现触摸功能的Rx走线和Tx走线)，在TP上方设置圆偏振片，在圆偏振片上方设置玻璃盖板。
可理解的，以上制备Oncell触摸方式的触摸显示屏的制备工艺与目前主流的AMOLED产品类似，上述步骤(1.1)至步骤(1.14)仅是为了体现Oncell触摸方式的触摸显示屏每层的结构，具体的制备流程和实现工艺可以参见AMOLED产品的，本实施例对此不再赘述。
通过上述描述，以及图9示出的Oncell触摸方式的触摸显示屏的局部剖面可知，在非封装区TP走线下方没有封装层，因此非封装区的TP走线可以和TFT的SD相连，从而使得的Oncell触摸方式的触摸显示屏能够实现本实施例提供的角度检测功能。
可以理解的，如果随着显示触摸屏的制备工艺的改进，能够将封装区的TP走线与TFT相连，本实施例提供的TP走线互连方式也可以在封装区完成，本实施例对此不作限定。
参见图10，示例性的给出一种Incell触控方式的显示触摸屏的局部剖面示意图。
如图10所示，Incell触控方式的显示触摸屏从PI层到EL层之间的结构与图9所示的Oncell触控方式的显示触摸屏相同，关于这些层的形成可以参见上文步骤(1.1)至步骤(1.11)，以及目前主流的AMOLED产品的制备流程和实现工艺，此处不再赘述。
继续参见图10，对于将显示触摸屏的阴极(Cathode)同时作为触控电极的Incell触控方式的显示触摸屏，其与Oncell触控方式的显示触摸屏的不同之处在于，在形成Cathode后，还需要在Cathode上形成走线花样，从而使得Cathode既能够作为显示电极，又能够作为触控电极，图10中用Cathode(TP N)表示。
示例性的，在一些可行的实现方式中，在Cathode上形成走线花样，进而得到Cathode(TP N)的工艺流程，例如可以是：
(2.1)在PDL层固化完成后，采用磁控溅射的方法在PDL层上形成氧化铝薄膜(图10所示的AL)，采用磁控溅射的方法在AL薄膜上形成氧化铟锡薄膜(图10 所示的ITO)。
示例性的，在一种可行的实现方式中，也可以选择其他刻蚀选择比(湿刻)高的膜层组合，作为图10所示的AL、ITO。
(2.2)经过曝光后，采用湿法刻蚀，形成如图10所示的undercut(底部较窄，上部较宽)的膜层结构，这样在PDL层采用蒸镀工艺制备Cathode时，由于AL/ITO undercut结构的存在，在这个结构的位置就会断开(如图10所示)。这样，就会隔断阴极层，形成走线花样，进而得到Cathode(TP N)。
(2.3)在Cathode(TP N)之上，封装区所在的区域形成薄膜封装层(Thin Film Encapsulation)(图10所示的TFE层)，以保护OLED屏。
通过上述描述，以及图10示出的Incell触摸方式的触摸显示屏的局部剖面可知，Incell触摸方式的触摸显示屏中需要互连的走线是位于Cathode(TP N)上的，因此在非封装区中可以通过TFT将位于上述位置的走线(自容式TP具体不区分走线类型，直接用TPN，TPN+1表示)进行连接，从而使得的Incell触摸方式的触摸显示屏能够实现本实施例提供的角度检测功能。
应当理解的是，上述说明仅是为了更好的理解本实施例的技术方案而列举的示例，不作为对本实施例的唯一限制。在实际应用中，不论显示触摸屏以哪种工艺制备，只要能确定走线的位置，都可以通过TFT，或者其他开关器件，按照本实施例提供的走线互连方式，在非封装区实现连接。
针对上述实施例提供的实现走线互连的显示触摸屏，为了根据电容值的变化实现角度检测，本申请实施例还提供了一种角度检测电路。
下面对本申请实施例提供的角度检测电路的具体结构进行介绍。
如图11所示，本实施例中，角度检测电路包括电容C1、电容C2、电阻R1、运算放大器OA、滤波器FILTER、可变增益放大器VGA、模/数转换器ADC、IC芯片、开关器件，如TFT。
其中，IC芯片用于输出高电平信号或低电平信号，以及判断电容值实现角度检测等操作。
电容C1，即为通过TFT等开关器件将显示触摸屏中的走线互连后形成的电容传感器。电容C1的发射极，即上述实施例中所说的TxC通过TFT1等开关器件经信号线Cen与IC芯片连接，用于在TFT1等开关器件根据信号线Cen传输的高电平信号/低电平信号导通时，产生脉冲信号。电容C1的接收极，即上述实施例中所说的RxC通过TFT2等开关器件经信号线Cen与IC芯片连接，用于在TFT2等开关器件根据信号线Cen传输的高电平信号/低电平信号导通时，感知TxC产生的脉冲信号。
关于TFT1、TFT2的栅极、漏极、源极与电容C1的发射极和接收极，以及信号线Cen的连接方式可以参见上述实施例的描述，此处不再赘述。
需要说明的是，图11中示出的开关器件TFT，并不限定其个数为两个，TFT1、TFT2，在实际应用中，TFT的个数取决于连接走线的个数。以互容式TP为例，例如在将靠近弯折区20a左右两侧相邻两个Rx进行互连时，图11中的TFT个数应该为2个，即分别对应RxC的一个TFT2和对应TxC的一个TFT1。
运算放大器OA的反向输入端与电容C1的RxC连接，正向输入端接地，输出端 与滤波器FILTER的输入端连接，滤波器FILTER的输出端与可变增益放大器VGA的输入端连接，可变增益放大器VGA的输出端与模/数转换器ADC的输入端连接，模/数转换器ADC的输出端与IC芯片连接。
此外，需要说明的是，对于理想的运算放大器OA，只需要并联电容就可以构成电荷放大器，从而实现对电荷的积分处理。但是，在实际应用中，为了防止与运算放大器OA并联的电容饱和(由运算放大器OA的偏置电压导致)，因此还需要并联电阻。基于此，参见图11，在运算放大器OA的反向输入端和输出端之间还并联了电阻R1和电容C2，这样就可以构成电荷放大器，从而实现对电荷的积分处理。
基于上述角度检测电路，当IC芯片通过信号线Cen发送控制TFT导通的电平信号(具体是高电平信号，还是低电平信号根据TFT的开关特性决定)后，TFT导通，TxC会发射脉冲信号，而RxC的电位保持不变，这时电容C1当前的电荷就会发生变化；电容C1的电荷经RxC输入至运算放大器OA，经运算放大器OA积分放大处理后得到对应的电压输入至滤波器FILTER；滤波器FILTER对电压进行滤波处理，滤掉不是由于TxC发射的脉冲信号产生的电压，并将滤波处理后的电压输入至可变增益放大器VGA；可变增益放大器VGA对电压进行增益处理，使得最终输入至模/数转换器ADC的电压，经模/数转换器ADC处理后，数字量能够成倍数的增加或减小；最终，模/数转换器ADC将由电荷和可变增益放大器VGA处理得到的电压确定的电容值(模拟信号)转换为数字信号发送给IC芯片进行处理，从而实现角度检测。
此外，需要说明的是，IC芯片不仅会通过信号线Cen发送控制开关器件，如图11中的TFT1和TFT2导通或关断的电平信号，在TFT1和TFT2导通后，还会通过信号线Cen发送脉冲信号，从而使得TxC产生脉冲信号，RxC感知。
进一步地，为了解决因为误触导致电容C1的电荷发生变化，进而误认为要进行角度检测，或者影响角度检测的结果。还可以通过软件方式耦合显示触摸屏，这样当电容C1的电荷发生变化，但是在电容C1的电极处(TxC和RxC)检测到存在触碰物，如手指、触控笔等时，当前的电荷可以不作为角度检测的判断依据。这样就可以避免误触对角度检测的影响，从而保证角度检测的稳定性和准确性。
此外，需要说明的是，通过上文描述可知，对于互容式TP，不仅可以支持触摸模式，还可以支持角度检测，并且两种功能对应的周期不同，互不干扰。关于角度检测周期进行角度检测时，对应的角度检测电路图如图11所示，关于触摸检测周期进行触摸检测时，对应的触摸模式电路图例如可以如图12所示。
参见图12，示例性的，在实际应用中，触摸检测电路(如图12中的30)和角度检测电路(如图12中的40)共用RxC和TxC。基于图5所示，本实施例仍以TFT1和TFT2为在低电平导通为例，故而在进入触摸模式对应的检测周期时，IC芯片发送高电平信号，TFT1和TFT2断开，角度检测电路40不工作，触摸屏芯片(TPIC)发送对应的信号控制连接TPIC和RxC、TxC的开关处于闭合状态(如图12中触摸检测电路30内虚线状态)，这时触摸模式电路30工作。
继续参见图12，在进入角度检测周期时，IC芯片发送低电平信号，TFT1和TFT2导通，TPIC发送对应的信号控制连接TPIC和RxC、TxC的开关处于打开状态，这时触摸模式电路30不工作，角度检测电路40工作。关于角度检测电路40的工作原理， 可以参见图11对应的文字部分，此处不再赘述。
此外，还需要说明的是，通过上文描述可知，对于自容式TP，不仅可以支持显示模式、触摸模式，还可以支持角度检测，并且这三种功能对应的周期不同，互不干扰。关于角度检测周期进行角度检测时，对应的角度检测电路图如图11(图13中的40)所示，关于显示检测周期进行显示检测时，对应的显示模式电路图例如可以如图13中的50所示，关于触摸检测周期进行触摸检测时，对应的触摸模式电路图例如可以如图13中的30所示。
参见图13，示例性的，在实际应用中，触摸检测电路(如图13中的30)和角度检测电路(如图13中的40)共用RxC和TxC。基于图7所示，本实施例仍以TFT1和TFT2为在低电平导通为例，故而在进入显示模式对应的检测周期时，IC芯片发送高电平信号，TFT1和TFT2断开，角度检测电路40不工作，触摸屏芯片(TPIC)发送对应的信号控制连接TPIC和RxC、TxC的开关处于打开状态，电源IC发送对应的信号控制连接RxC、TxC的开关处于闭合(如图13中触摸检测电路30内虚线状态)状态，触摸模式电路30也不工作，显示面板驱动IC(Display driver IC，DDIC)正常输出信号给驱动像素的电路单元Emit，Emit根据DDIC提供的信号发射对应的信号，驱动控制的像素Pixel进行工作，如OLED亮/灭，即显示模式电路50工作。
继续参见图13，示例性的，在进入触摸模式对应的检测周期时，IC芯片发送高电平信号，TFT1和TFT2断开，角度检测电路40不工作，触摸屏芯片(TPIC)发送对应的信号控制连接TPIC和RxC、TxC的开关处于闭合状态(如图13中触摸检测电路30内虚线状态)，电源IC输出ELVSS，控制连接RxC、TxC的开关处于打开状态，这时触摸模式电路30工作。
可理解的，对于自容式TP存在一些将用于显示的阴极作为触摸电极，因此在触摸模式下，需要用于显示的阴极停止为显示屏工作，因此本实例通过电源IC控制连接RxC，TxC的开关处于闭合状态，实现电源IC能够为显示屏提供ELVSS电压，使得DDIC在这种情况下发送Stv1的高电压信号，这样Emit就可以发射高电压信号，进而驱动其控制的Pixel熄灭，这时触摸模式电路30就可以进入工作状态。
需要说明的是，本实施例中所说的ELVSS表示OLED显示阴极电位。
继续参见图13，在进入角度检测周期时，IC芯片发送低电平信号，TFT1和TFT2导通，TPIC发送对应的信号控制连接TPIC和RxC、TxC的开关处于打开状态，
TPIC发送对应的信号控制连接RxC、TxC的开关处于打开状态，这时触摸模式电路30不工作，角度检测电路40工作。关于角度检测电路40的工作原理，可以参见图11对应的文字部分，此处不再赘述。
应当理解的是，上述说明仅是为了更好的理解本实施例的技术方案而列举的示例，不作为对本实施例的唯一限制。
为详细说明本申请各实施例提供的用于实现角度检测的方案带来的有益效果，以折叠设备为手机为例，下面通过与相关技术进行对比来说明。
对于通过在主板设置双A+G器件的相关方案，其基本原理是通过重力方向和两个加速度计各自坐标轴的夹角，以及角速度计(陀螺仪)沿Y轴的旋转角度计算手机两页的夹角，即沿折叠轴折叠的左右两侧的内屏形成的夹角。
对折叠屏手机来说，左右两个平面在手机坐标系里共Y轴，所以这两个坐标系共XOZ平面，如图14所示。在静止状态下，重力向量g在XOZ平面投影向量和X1OY平面的夹角，以及重力向量g在XOZ平面投影向量和X2OY平面的夹角，就是所要计算的合页夹角。但是在非静止状态下，沿着非重力方向存在加速度，这时加速度计整体加速度的方向为非重力方向，如果通过加速度计的加速度方向投影就会导致确定的角度不准确，因此需要通过陀螺仪对沿Y轴的旋转角度进行积分处理，然后通过软件算法对两种计量计的检测结果进行融合，就可以确定一个稳定、准确的夹角保值。
由此，通过对双A+G器件实现角度检测的原理的说明可知，这种角度检测方案必须通过两颗器件共同作用产生角度结果，因此一旦其中一颗失效，就会导致角度检测功能失效，进而影响角度检测的稳定性。
此外，由于双A+G器件方案需要在主板单独布置两颗A+G器件，因此实现成本较高，也不利于手机主板布局。
由此可见，本申请实施例提供的用于实现角度检测的方案，通过将显示触摸屏弯折区两侧的走线互连，形成电容传感器的两极，进而通过检测电容值的大小就可以实现对显示触摸屏折叠角度的检测，无需融合其他器件产生的角度结果，因此稳定性高。
此外，由于无需在主板上单独设置双A+G器件，因此不仅降低了实现成本，同时也有利于折叠屏设备主板布局。
此外，需要说明的是，上述各实施例中所说的将显示触摸屏弯折区两侧的走线互连，具体是指将显示触摸屏中的TP(触摸屏)走线进行互连。
此外，还需要说明的是，在实际的应用场景中由折叠屏设备实现的上述各实施例提供的角度检测方法，也可以由折叠屏设备中包括的一种芯片系统来执行，其中，该芯片系统可以包括处理器。该芯片系统可以与存储器耦合，使得该芯片系统运行时调用该存储器中存储的计算机程序，实现上述折叠屏设备执行的步骤。其中，该芯片系统中的处理器可以是应用处理器也可以是非应用处理器的处理器。
另外，本申请实施例还提供一种计算机可读存储介质，该计算机存储介质中存储有计算机指令，当该计算机指令在折叠屏设备上运行时，使得折叠屏设备执行上述相关方法步骤实现上述实施例中的角度检测方法。
另外，本申请实施例还提供了一种计算机程序产品，当该计算机程序产品在折叠屏设备上运行时，使得折叠屏设备执行上述相关步骤，以实现上述实施例中的角度检测方法。
另外，本申请的实施例还提供一种芯片(也可以是组件或模块)，该芯片可包括一个或多个处理电路和一个或多个收发管脚；其中，所述收发管脚和所述处理电路通过内部连接通路互相通信，所述处理电路执行上述相关方法步骤实现上述实施例中的角度检测方法，以控制接收管脚接收信号，以控制发送管脚发送信号。
此外，通过上述描述可知，本申请实施例提供的折叠屏设备、计算机可读存储介质、计算机程序产品或芯片均用于执行上文所提供的对应的方法，因此，其所能达到的有益效果可参考上文所提供的对应的方法中的有益效果，此处不再赘述。
以上所述，以上实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可 以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的范围。

Claims (18)

  1. 一种折叠屏设备，其特征在于，包括：显示触摸屏、开关器件、集成电路IC芯片和角度检测电路，所述显示触摸屏包括弯折区，以及位于所述弯折区外围的显示触摸区；
    所述显示触摸区靠近所述弯折区的TP走线通过所述开关器件互连形成电容传感器，所述电容传感器包括分别位于所述弯折区两侧的发射极和接收极；
    所述开关器件通过控制信号线与所述IC芯片连接，用于根据所述IC芯片发送的第一电平信号导通；
    所述电容传感器在所述开关器件根据所述第一电平信号导通，所述IC芯片发送脉冲信号后，所述发射极产生脉冲信号，所述接收极电位不变，产生变化的电荷；
    所述角度检测电路用于获取所述电容传感器产生的电荷，并根据所述电荷确定所述电容传感器的电容值；
    所述IC芯片用于根据所述电容值，确定所述显示触摸屏的折叠角度。
  2. 根据权利要求1所述的折叠屏设备，其特征在于，所述开关器件包括薄膜场效应晶体管TFT；
    其中，所述显示触摸区靠近所述弯折区的TP走线的部分或全部区域中每两条相邻的TP走线通过一个所述TFT互连，所有TFT的栅极接入同一所述控制信号线。
  3. 根据权利要求2所示的折叠屏设备，其特征在于，所述显示触摸屏为互容式显示触摸屏；
    所述互容式显示触摸屏包括第一TP走线和第二TP走线，所述第一TP走线与所述弯折区中设置的折叠轴平行，所述第二TP走线与所述折叠轴垂直；
    其中，所述显示触摸区靠近所述弯折区的第一TP走线的部分或全部区域中每两条相邻的第一TP走线通过一个所述TFT互连，所有TFT的栅极接入同一所述控制信号线。
  4. 根据权利要求2所示的折叠屏设备，其特征在于，所述显示触摸屏为自容式显示触摸屏；
    所述自容式显示屏包括第一TP走线，所述第一TP走线与所述弯折区中设置的折叠轴平行；
    其中，所述显示触摸区靠近所述弯折区的第一TP走线的部分或全部区域中每两条相邻的第一TP走线通过一个所述TFT互连，所有TFT的栅极接入同一所述控制信号线。
  5. 根据权利要求1所述的折叠屏设备，其特征在于，所述角度检测电路包括电荷放大器、滤波器、可变增益放大器和模/数转换器；
    所述电荷放大器的反向输入端与所述接收极连接，所述电荷放大器的正向输入端接地；
    所述滤波器的输入端与所述电荷放大器的输出端连接；
    所述可变增益放大器的输入端与所述滤波器的输出端连接；
    所述模/数转换器的输入端与所述可变增益放大器的输出端连接，所述模/数转换器的输出端与IC芯片连接。
  6. 根据权利要求5所述的折叠屏设备，其特征在于，所述电荷放大器由运算放大器和电容构成；
    其中，所述电容并联在所述运算放大器的反向输入端和输出端。
  7. 根据权利要求5所述的折叠屏设备，其特征在于，所述电荷放大器由运算放大器、电容和电阻构成；
    其中，所述电容并联在所述运算放大器的反向输入端和输出端，所述电阻并联在所述电容的两极。
  8. 根据权利要求1至7任一项所述的折叠屏设备，其特征在于，所述开关器件还用于根据所述IC芯片发送的第二电平信号关断；
    其中，在所述开关器件关断后，所述电容传感器不工作。
  9. 根据权利要求1至7任一项所述的折叠屏设备，其特征在于，所述开关器件布设于所述弯折区内。
  10. 根据权利要求1至7任一项所述的折叠屏设备，其特征在于，所述弯折区位于所述显示触摸屏的非封装区，所述显示触摸区位于所述显示触摸屏的封装区；
    其中，所述显示触摸区靠近所述弯折区的TP走线通过所述开关器件在所述非封装区互连形成所述电容传感器。
  11. 一种角度检测方法，其特征在于，应用于如权利要求1至10任一项所述的折叠屏设备，所述方法包括：
    在角度检测模式时间周期时，IC芯片发送第一电平信号，开关器件导通；
    所述IC芯片发送脉冲信号，电容传感器的发射极产生脉冲信号，所述电容传感器的接收极电位不变，产生变化的电荷；
    角度检测电路获取所述电容传感器产生的电荷，并根据所述电荷确定所述电容传感器的电容值；
    所述IC芯片根据所述电容值，确定所述显示触摸屏的折叠角度。
  12. 根据权利要求11所述的角度检测方法，其特征在于，所述角度检测电路获取所述电容传感器产生的电荷，并根据所述电荷确定所述电容传感器的电容值，包括：
    所述电容传感器通过所述接收极将所述电荷输出至电荷放大器；
    电荷放大器获取所述电容传感器产生的电荷，并对所述电荷进行积分处理，得到所述电荷对应的第一电压；
    滤波器对所述第一电压进行滤波处理，得到第二电压；
    可变增益放大器对所述第二电压进行增益处理，得到第三电压；
    模/数转换器对由所述第三电压和所述电荷确定的电容值进行模/数转换，得到所述电容值对应的数字信号。
  13. 根据权利要求11所述的角度检测方法，其特征在于，所述IC芯片根据所述电容值，确定所述显示触摸屏的折叠角度，包括：
    所述IC芯片根据所述电容值和预设的映射关系，确定所述显示触摸屏的折叠角度，所述映射关系记录了不同的电容值对应的折叠角度。
  14. 根据权利要求13所述的角度检测方法，其特征在于，所述方法还包括：
    基于电容值跟随折叠角度的变化而变化的特性，确定不同电容值与不同折叠角度之间的关系，得到预设的所述映射关系。
  15. 根据权利要求14所述的角度检测方法，其特征在于，所述电容值与所述折叠角度成反比。
  16. 根据权利要求11至15任一项所述的角度检测方法，其特征在于，所述方法还包括：
    在未到达所述角度检测模式时间周期时，所述IC芯片发送第二电平信号，所述开关器件关断，以使所述显示触摸屏进入触摸检测模式或显示模式。
  17. 根据权利要求11至15任一项所述的角度检测方法，其特征在于，所述方法还包括：
    在所述开关器件导通，所述IC芯片发送脉冲信号之后，如果检测到有物体触摸所述显示触摸屏中所述发射极和所述接收极所在的区域；
    对所述电容传感器当前的电荷不做处理。
  18. 一种计算机可读存储介质，其特征在于，包括计算机程序，当所述计算机程序在折叠屏设备上运行时，使得所述折叠屏设备执行如权利要求11至17任意一项所述的角度检测方法。
PCT/CN2023/087471 2022-07-05 2023-04-11 折叠屏设备、角度检测方法及存储介质 Ceased WO2024007653A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202210784548.4 2022-07-05
CN202210784548.4A CN117395331B (zh) 2022-07-05 2022-07-05 折叠屏设备、角度检测方法及存储介质

Publications (2)

Publication Number Publication Date
WO2024007653A1 true WO2024007653A1 (zh) 2024-01-11
WO2024007653A9 WO2024007653A9 (zh) 2024-04-18

Family

ID=89436080

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2023/087471 Ceased WO2024007653A1 (zh) 2022-07-05 2023-04-11 折叠屏设备、角度检测方法及存储介质

Country Status (2)

Country Link
CN (1) CN117395331B (zh)
WO (1) WO2024007653A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025256299A1 (zh) * 2024-06-14 2025-12-18 敦泰电子（深圳）有限公司 开合盖检测方法

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118882473A (zh) * 2023-12-08 2024-11-01 敦泰电子（深圳）有限公司 折叠角度的检测方法、触控芯片及触控装置
WO2025179525A1 (zh) * 2024-02-29 2025-09-04 荣耀终端股份有限公司 触控模组、触控显示模组以及电子设备
WO2025194346A1 (zh) * 2024-03-19 2025-09-25 深圳市汇顶科技股份有限公司 用于折叠屏的电容检测方法、触控芯片和电子设备
CN118226989A (zh) * 2024-03-19 2024-06-21 深圳市汇顶科技股份有限公司 用于折叠屏的电容检测方法、触控芯片和电子设备

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105676965A (zh) * 2016-03-29 2016-06-15 上海天马微电子有限公司 可折叠显示装置
KR20180047726A (ko) * 2016-11-01 2018-05-10 주식회사 지2터치 터치 스크린 기능을 구비한 표시 장치
CN108874224A (zh) * 2018-06-27 2018-11-23 武汉天马微电子有限公司 一种柔性触控显示面板及其折叠角度检测方法和系统
CN109917960A (zh) * 2019-02-28 2019-06-21 武汉华星光电半导体显示技术有限公司 一种可折叠显示装置
CN112764590A (zh) * 2021-03-16 2021-05-07 合肥维信诺科技有限公司 触控显示面板及其驱动方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7307626B2 (en) * 2004-01-27 2007-12-11 Tyco Electronics Corporation Capacitive touch sensor
KR20150109890A (ko) * 2014-03-21 2015-10-02 크루셜텍 (주) 기생 정전용량 보상 회로를 갖는 터치 검출 가능 입체 영상 표시 장치
KR102241773B1 (ko) * 2014-12-18 2021-04-19 삼성디스플레이 주식회사 터치 센서 장치
KR102407966B1 (ko) * 2015-06-29 2022-06-10 엘지디스플레이 주식회사 벤더블 디스플레이 및 그 구동 방법
CN207676305U (zh) * 2017-12-29 2018-07-31 深圳市帝晶光电科技有限公司 一种触控显示装置
CN108389869B (zh) * 2018-03-01 2020-09-22 上海天马微电子有限公司 柔性显示面板
CN111600998A (zh) * 2020-05-21 2020-08-28 北京小米移动软件有限公司 显示屏的控制方法、装置、终端设备及存储介质
CN112416060A (zh) * 2020-11-19 2021-02-26 捷开通讯(深圳)有限公司 一种屏幕状态控制方法、装置、存储介质及移动终端
CN113296636B (zh) * 2021-06-09 2022-11-25 维沃移动通信有限公司 防误触方法、装置和电子设备

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105676965A (zh) * 2016-03-29 2016-06-15 上海天马微电子有限公司 可折叠显示装置
KR20180047726A (ko) * 2016-11-01 2018-05-10 주식회사 지2터치 터치 스크린 기능을 구비한 표시 장치
CN108874224A (zh) * 2018-06-27 2018-11-23 武汉天马微电子有限公司 一种柔性触控显示面板及其折叠角度检测方法和系统
CN109917960A (zh) * 2019-02-28 2019-06-21 武汉华星光电半导体显示技术有限公司 一种可折叠显示装置
CN112764590A (zh) * 2021-03-16 2021-05-07 合肥维信诺科技有限公司 触控显示面板及其驱动方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025256299A1 (zh) * 2024-06-14 2025-12-18 敦泰电子（深圳）有限公司 开合盖检测方法

Also Published As

Publication number Publication date
CN117395331B (zh) 2024-08-20
WO2024007653A9 (zh) 2024-04-18
CN117395331A (zh) 2024-01-12

Similar Documents

Publication Publication Date Title
CN117395331B (zh) 折叠屏设备、角度检测方法及存储介质
CN107025010B (zh) 具有触摸屏功能的显示装置
US9367164B2 (en) Pixel circuit integrating threshold voltage compensation with touch detection, driving method thereof, and organic light-emitting display panel
JP5628402B2 (ja) 光学的入力可能なディスプレイ駆動回路
US9465482B2 (en) Display guarding techniques
KR102565306B1 (ko) 표시패널 및 터치표시장치
US11488499B2 (en) Strain sensing in foldable displays
CN114721539A (zh) 触摸控制器、包括其的触摸感测设备及其操作方法
CN110515496A (zh) 触控显示面板及其工作方法、触控显示装置
US11262861B2 (en) Display device
JP2014532192A (ja) アレイ上にカラーフィルタを伴うインセル又はオンセルタッチセンサ
CN103677475B (zh) 内嵌式触控显示面板及其触摸定位方法、显示装置
CN110023891B (zh) 压力触控结构、压力触控面板、显示装置
US10761652B2 (en) Touch panel, touch device and method of manufacturing touch panel
CN108319394A (zh) 触控面板及其驱动方法、触控装置
CN112086480B (zh) 显示模块及包括该显示模块的显示装置
CN115454273A (zh) 触敏显示装置和显示面板
WO2017012294A1 (zh) 触控模组、触摸屏、其触摸定位方法及显示装置
US10705646B2 (en) Touch display panel, method for driving the same, and display device
CN107705748B (zh) 显示基板及其驱动方法以及显示装置
CN108932085B (zh) 阵列基板、显示装置及其驱动方法
US10649596B2 (en) Touch panel and touch method thereof, electronic device
US20140247244A1 (en) Capacitive touch screen and control method thereof
CN118571139A (zh) 电子装置和传感器驱动器
EP4116816B1 (en) Display device and method of controlling plurality of display devices

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 23834436

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 23834436

Country of ref document: EP

Kind code of ref document: A1