CN115225744A - Electronic device - Google Patents

Abstract

The application discloses an electronic device, which belongs to the technical field of communication. It includes a device main body, a first screen, a second screen and a piezoelectric component respectively arranged on the device main body; the second screen and the first screen are respectively located on different surfaces of the device main body; the device main body comprises a relatively rotatable first shell and The second housing, the first screen is arranged on one side of the first housing, the second screen is arranged on the other side of the first housing, and the first housing is provided with a piezoelectric component; between the first housing and the second housing When the casing is folded, the piezoelectric assembly between the first casing and the second casing is pressed to wake up the second screen.

Description

an electronic device

technical field

The embodiments of the present invention relate to the field of communication technologies, and in particular, to an electronic device.

Background technique

When the display screen on the electronic device is a foldable display screen, the area used for display on the electronic device can be enlarged to a large extent, so that the user has a better visual experience. The existing folding screen is usually divided into a main screen and a secondary screen. The main screen is a screen that can be folded, and the secondary screen is a screen that can still be used after the main screen is folded. Therefore, after the main screen is folded, it needs to be able to automatically wake up the secondary screen to satisfy users. usage requirements.

SUMMARY OF THE INVENTION

The present invention provides an electronic device to wake up the second screen without increasing the power consumption of the electronic device.

In a first aspect, the present invention discloses an electronic device, comprising: a device main body, a first screen, a second screen and a piezoelectric component respectively disposed on the device main body; the second screen and the first screen The screens are respectively located on different surfaces of the device body;

The device main body includes a relatively rotatable first casing and a second casing, the first screen is arranged on one side of the first casing, and the second screen is arranged on the first casing. On the other side, the first housing is provided with a piezoelectric component;

When the first casing and the second casing are folded, the piezoelectric assembly located between the first casing and the second casing is pressed to wake up the second screen.

Optionally, the electronic device further includes: a first magnetic member and a second magnetic member, the first magnetic member is provided on the first housing, and the second magnetic member is provided on the second housing ;

The orthographic projection of the first magnetic member on the plane where the first housing is located overlaps the orthographic projection of the piezoelectric component on the plane where the first housing is located;

When the first casing and the second casing are folded, the first magnetic member and the second magnetic member are sucked together.

Optionally, when the first casing and the second casing are folded, the piezoelectric component is located between the first magnetic member and the second magnetic member.

Optionally, it includes a plurality of first magnetic pieces and a plurality of second magnetic pieces, the first magnetic pieces are arranged at intervals along the circumferential edge of the first housing, and the second magnetic pieces correspond to the The peripheral edges of the two shells are arranged.

Optionally, the first housing is provided with a camera assembly, and the distance between the first magnetic member and the camera assembly is greater than or equal to 5 mm.

Optionally, the piezoelectric component includes a first piezoelectric component and a second piezoelectric component, the first piezoelectric component is provided in the first housing, and the second piezoelectric component is provided in the first piezoelectric component. Two casings, when the first casing and the second casing are folded, the first piezoelectric component and the second piezoelectric component are opposite to each other.

Optionally, it includes a rotating shaft, the first side of the first casing is connected to the rotating shaft, the second side of the first casing is provided with at least one of the piezoelectric components, and the first side is The edge is opposite the second side edge.

Optionally, the piezoelectric component includes a piezoelectric material and a control circuit electrically connected to the piezoelectric material; the control circuit includes a first trigger circuit, a second trigger circuit and a third trigger circuit connected in sequence;

The first trigger circuit is configured to receive an electrical signal generated by the deformation of the piezoelectric material, and output a first high-level signal to the second trigger circuit based on the electrical signal to turn on the second trigger circuit, causing the second trigger circuit to output a second high-level signal to the third trigger circuit to turn on the third trigger circuit, and the third trigger circuit is used to wake up the second trigger circuit when it is turned on Screen.

Optionally, the first trigger circuit includes: a first switch, a first power supply unit, a voltage stabilization unit, a first resistor, a second resistor, a third resistor, and a first ground terminal;

One end of the voltage stabilization unit is connected to the piezoelectric material, the other end of the voltage stabilization unit is connected to one end of the first resistor, and the other end of the first resistor is connected to the first end of the first switch. The connection point is connected, the second connection point of the first switch is connected to one end of the second resistor, the other end of the second resistor is connected to the first power supply unit, and the third connection of the first switch is connected The point is connected to one end of the third resistor, and the other end of the third resistor is connected to the first ground terminal;

After the electrical signal generated by the deformation of the piezoelectric material is subjected to voltage stabilization processing by the voltage stabilization unit, the first switch is triggered to open, so that the first power supply unit sends the first high voltage to the second trigger circuit. level signal.

Optionally, the second trigger circuit includes: a processing unit, a fourth resistor, a second power supply unit, and a second ground terminal;

The fourth connection point of the processing unit is connected to the first trigger circuit, the fifth connection point of the processing unit is connected to the second power supply unit, and the sixth connection point of the processing unit is connected to the second power supply unit the ground terminal is connected, the seventh connection point of the processing unit is connected to one end of the fourth resistor, and the other end of the fourth resistor is connected to the third trigger circuit;

The processing unit receives the first high-level signal, so that the processing unit generates the second high-level signal, and sends the second high-level signal to the third trigger circuit.

Optionally, the third trigger circuit includes: a second switch, a third switch, a third power supply unit, a fifth resistor, and a third ground terminal;

The eighth connection point of the second switch is connected to the second trigger circuit, the ninth connection point of the second switch is connected to the eleventh connection point of the third switch, and the first connection point of the second switch is connected. The tenth connection point is connected to the third ground terminal, the twelfth connection point of the third switch is connected to the third power supply unit, and the thirteenth connection point of the third switch is connected to the second screen connection, the third power supply unit is connected to one end of the fifth resistor, and the other end of the fifth resistor is connected to the eleventh connection point of the third switch;

The second switch receives the second high-level signal and triggers the second switch to open, so that the third switch is connected to the third ground terminal, and the third ground terminal generates a low-level signal , triggering the third switch to be turned on, so that the third power supply unit sends a third high-level signal to the second screen, and the third high-level signal is used to wake up the second screen.

In a second aspect, the present invention discloses a second screen wake-up method of an electronic device, which is applied to the electronic device of the first aspect, and the method includes:

acquiring the electrical signal generated by the piezoelectric component when the first casing and the second casing of the electronic device are folded;

Wake up the second screen of the electronic device according to the electrical signal.

In a third aspect, the present invention discloses an electronic device, the electronic device includes a processor and a memory, the memory stores programs or instructions that can be executed on the processor, and the programs or instructions are executed by the processor while implementing the steps of the method as described in the second aspect.

In a fourth aspect, an embodiment of the present application provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the steps of the method according to the second aspect are implemented .

In a fifth aspect, an embodiment of the present application provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a program or an instruction to implement the second aspect the method described.

In a sixth aspect, an embodiment of the present application provides a computer program product, where the program product is stored in a storage medium, and the program product is executed by at least one processor to implement the method described in the second aspect.

In the embodiment of the present application, the first screen, the second screen and the piezoelectric component are respectively arranged on the device body; the second screen and the first screen are respectively located on different surfaces of the device body; the device body includes a relatively rotatable first screen The housing and the second housing, the first screen is arranged on one side of the first housing, the second screen is arranged on the other side of the first housing, and the first housing is provided with a piezoelectric component; When folded with the second casing, the piezoelectric component located between the first casing and the second casing is pressed to wake up the second screen. When the first shell and the second shell are folded, the piezoelectric component is deformed by pressure to generate an electrical signal, and the generated electrical signal can be used as a signal to wake up the second screen. The pressure generated when the first casing and the second casing are folded can wake up the second screen sensitively, reducing the power consumption of the electronic device.

Description of drawings

Fig. 1 is a kind of inverse piezoelectric effect electric domain change diagram provided by the embodiment of the present invention;

2 is a schematic diagram of an inverse piezoelectric effect provided by an embodiment of the present invention;

3 is a schematic diagram of a positive piezoelectric effect provided by an embodiment of the present invention;

4 is a device distribution diagram from a rear view angle of an electronic device provided by an embodiment of the present invention;

5 is a distribution diagram of devices on both sides of an electronic device provided by an embodiment of the present invention;

6 is a schematic diagram of a folded state of a first casing provided by an embodiment of the present invention;

7 is a connection diagram of a piezoelectric thin film circuit provided by an embodiment of the present invention;

8 is a schematic diagram of another first casing in a folded state according to an embodiment of the present invention;

9 is a flowchart of steps of a wake-up method for a second screen of an electronic device provided by an embodiment of the present invention;

10 is a working flowchart of a piezoelectric component provided by an embodiment of the present invention;

11 is a block diagram of an electronic device provided by an embodiment of the present invention;

FIG. 12 is a block diagram of an electronic device 400 provided by an embodiment of the present invention;

FIG. 13 is a schematic diagram of a hardware structure of an electronic device according to an embodiment of the present invention.

Reference signs: 11-first screen; 12-second screen; 13-piezoelectric component; 14-first magnetic component; 15-camera component; 16-rotating shaft; 17-second magnetic component; 18-first shell body; 19-second shell; 111-first split screen; 112-second split screen; 20-first trigger unit 21-voltage stabilization unit; 22-first power supply unit; 23-first switch, 24- 25-first resistor; 26-second resistor; 27-third resistor; 30-second trigger unit 31-processing unit; 32-second power supply unit, 33-second ground terminal; 34- Fourth resistor; 40-third trigger unit; 41-second switch, 42-third switch, 43-third power supply unit, 43-third ground terminal; 44-fifth resistor.

Detailed ways

Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present invention will be more thoroughly understood, and will fully convey the scope of the present invention to those skilled in the art.

Some concepts and/or terms involved in the solutions provided by the embodiments of the present application are explained below.

Piezoelectric Ceramics: Electronic ceramic materials with piezoelectric properties. The crystal phase constituting its main component is a crystal grain having ferroelectricity. Since ceramics are polycrystalline aggregates with randomly oriented grains, the spontaneous polarization vectors of individual ferroelectric grains in them are also chaotically oriented. In order to make the ceramics exhibit macroscopic piezoelectric properties, it is necessary to place the piezoelectric ceramics under a strong DC electric field for polarization treatment after the piezoelectric ceramics are fired and coated with electrodes on the end faces, so as to make the original chaotically oriented respective generators. The transformation vector is preferably oriented along the direction of the electric field. After the polarization treatment of piezoelectric ceramics, after the electric field is cancelled, a certain macroscopic remanent polarization will be retained, so that the ceramics have certain piezoelectric properties.

Referring to Figure 1, Figure 1 is a diagram of the change of the inverse piezoelectric effect electric domain. Figure (a) in Figure 1 shows the distribution of the electric domain before the polarization treatment. The electric domain refers to the area with the same polarization direction. The polarization directions of the adjacent regions in a) are different. Picture (b) in Fig. 1 is the picture in the polarization process. A sufficiently high DC electric field is applied to the piezoelectric ceramic, and a certain temperature and time are maintained. Under the action of the piezoelectric ceramics, the piezoelectric ceramics are elongated, and the electric domain is turned, that is, the spontaneous polarization is aligned. For the remaining polarization, refer to Figure 2, which is a schematic diagram of the inverse piezoelectric effect. Under the action of the electric field, the polarization direction is arranged along the direction of the electric field.

Referring to FIG. 3 , FIG. 3 is a schematic diagram of the positive piezoelectric effect. The positive piezoelectric effect refers to the phenomenon of electric polarization due to deformation. When physical pressure is applied to the piezoelectric material, the electric dipole moment in the material body will be shortened due to compression. At this time, the piezoelectric material will generate an equal amount of positive and negative charges on the opposite surfaces of the material to resist this change. Remains as it is, i.e. in the case of an electric field due to stress.

4 and 5 , an embodiment of the present invention discloses an electronic device, including a device body 10, a first screen 11, a second screen 12 and a piezoelectric component 13 respectively disposed on the device body 10; the second screen 12 and the first screen 11 are respectively located on different surfaces of the device main body 10; the device main body 10 includes a relatively rotatable first casing 18 and a second casing 19, the first screen 11 is arranged on one side of the first casing 18, The second screen 12 is provided on the other side of the first housing 18, and the first housing 18 is provided with the piezoelectric component 13; when the first housing 18 and the second housing 19 are folded, it is located in the first housing The piezoelectric assembly 13 between 18 and the second housing 19 is pressed to wake up the second screen.

Specifically, referring to FIG. 6 , the first screen 11 is a foldable screen of the electronic device. When the first screen 11 is folded, the first housing 18 where the first split screen 111 is located and the second split screen 112 where the second split screen 112 is located are located. The shells 19 are in contact to generate mutual force, and the piezoelectric components 13 disposed under the first shell 18 and the second shell 19 are deformed under the action of the pressure generated by the contact, and the deformation makes the piezoelectric components 13 An electric polarization phenomenon is generated inside, and charges with opposite signs are generated on the surface of the piezoelectric component 13, resulting in a voltage difference. The electrical signal obtained according to the voltage can be used as an electrical signal to wake up the second screen. When the force on the surface of the piezoelectric component 13 disappears Afterwards, the piezoelectric component returns to an uncharged state, and the amount of electric charge generated on the surface of the piezoelectric component 13 is proportional to the magnitude of the pressure received. Therefore, if the piezoelectric component generates electric charge, it means that the first casing 18 and the second casing 19 are in a folded state, and the second screen can be awakened according to the generated electrical signal. The casing 18 and the second casing 19 are in an unfolded state, and there is no need to wake up the second screen.

Further, the piezoelectric component includes: positive/negative (+/-) terminals, and the P+ terminal of the piezoelectric component 13 is connected to a corresponding circuit of a PCB (Printed Circuit Board) through a capacitor. A mechanical support for fixing and assembling electronic components, realizing wiring and electrical connection or electrical insulation between various electronic components such as integrated circuits, P-terminals are connected to the main board GND (Ground, ground wire), peripheral circuits The positive input is connected to the P+ terminal, and the circuit tail is connected to the P- terminal to form a loop. The peripheral circuit is a control circuit that connects the central processing unit and the peripheral equipment to realize data transmission. It is set on the PCB, and the piezoelectric component is subjected to pressure. After the current is generated, it is input to the central processing unit through filtering processing and other related processing. The central processing unit responds accordingly according to the input electrical signal, and turns on the power supply switch of the second screen to wake up the second screen. Referring to FIG. 7 , after the electronic device is folded, the piezoelectric component disposed under the housing of the electronic device will generate current under the action of mechanical stress, and the positive and negative ends of the electric field are connected to the load circuit, which drives the first The circuit for whether the second screen wakes up, under the action of the current, the second screen is woken up.

In addition, the first screen 11 and the second screen 12 are flexible display screens, and the first screen 11 may include two split screens or three split screens, and may be folded up and down as shown in FIG. 4 , or may be left and right Folding, the present invention does not limit the style and number of folding screens. For different types of folding screens, the way to wake up the second screen is the same as the above. Referring to FIG. 8 , FIG. 8 is a schematic diagram of another type of folding screen. The first screen 11 is folded by folding left and right. After folding, the first split screen 111 is closely attached to the second split screen 112 , and the second screen 12 is located in On the other side opposite to the first split screen, the piezoelectric component 13 can be disposed under the first casing 18 where the first split screen 111 is located, and under the second casing 19 where the length of the second split screen 112 is located, After the first casing 18 and the second casing 19 are folded, the piezoelectric component is subjected to pressure to generate an electric current, thereby awakening the second screen 12 .

One piezoelectric component or multiple piezoelectric components may be arranged under the first housing 18 or the second housing 19 of the first screen, and the location of the piezoelectric components may be set according to actual needs. There is no restriction here. The use of piezoelectric components can generate electrical signals in the state of small deformation. Therefore, the use of piezoelectric components can only control whether the second screen wakes up according to the change of external force, the production cost is low, the implementation method is simple, and it is suitable for popularization and use. .

Optionally, referring to FIG. 4 , the electronic device further includes a first magnetic member 14 and a second magnetic member 17 , the first magnetic member 14 is provided in the first housing 18 , and the second magnetic member 17 is provided in the second housing 19 ; The orthographic projection of the first magnetic member 14 on the plane where the first housing 18 is located overlaps with the orthographic projection of the piezoelectric component 13 on the plane where the first housing 18 is located; when the first housing 18 and the second housing 19 are folded In this case, the first magnetic member 14 is attracted to the second magnetic member 17 .

Specifically, the first magnetic member 14 and the second magnetic member 17 may be disposed at the borders of the first casing 18 and the second casing 19 , the first magnetic member 14 and the second magnetic member 17 are symmetrically disposed, and the first magnetic member 14 and the second magnetic member 17 After the casing 18 and the second casing 19 are folded, the first casing 18 and the second casing 19 are tightly attached to prevent accidental folding and opening when carrying around. Under the action of the second magnetic member 17 and the first housing 18 and the second housing 19, the bonding between the first housing 18 and the second housing 19 becomes tighter, so that the piezoelectric component 13 is subjected to greater pressure, and the piezoelectric component can be more reliable. This prevents the second screen from being woken up effectively when the first casing 18 and the second casing 19 are folded due to insufficient pressure on the piezoelectric component. In addition, the orthographic projection of the first magnetic member 14 on the plane where the first housing 18 is located overlaps with the orthographic projection of the piezoelectric component 13 on the plane where the first housing 18 is located, so that compared with the way of using the Hall sensor to cooperate with the magnet , the use of piezoelectric components and magnetic components can make the magnetic components exert the maximum auxiliary force. The number of magnetic components can be two symmetrically arranged with each other, or 4 or 6 symmetrically arranged. The embodiments of the present invention are not limited herein.

Optionally, referring to FIG. 4 , when the first casing 18 and the second casing 19 are folded, the piezoelectric component 13 is located between the first magnetic member 14 and the second magnetic member 17 .

Specifically, the piezoelectric component 13 and the first magnetic member 14 may be arranged to overlap each other in the space of the first housing 18 of the electronic device, and the arrangement may be such that the first magnetic member 14 is located on the surface of the piezoelectric component 13, or the first magnetic member 14 is located on the surface of the piezoelectric component 13, or the A magnetic member 14 is located on the back of the piezoelectric element 13 . Since the first magnetic member 14 and the second magnetic member 17 are arranged symmetrically, the closer the position of the first magnetic member 14 or the second magnetic member 17 to the piezoelectric member 13 is , the greater the magnitude of the force on the piezoelectric component, the greater the current generated, which makes it more reliable to wake up the second screen through the piezoelectric component. In addition, the first magnetic member 14 or the second magnetic member 17 and the piezoelectric component 13 may also be arranged side by side and adjacent to each other, or arranged according to the spatial structure of a specific electronic device, which is not limited in this embodiment of the present invention.

Optionally, referring to FIG. 4 , it includes a plurality of first magnetic pieces 14 and a plurality of second magnetic pieces 17 , the first magnetic pieces 14 are arranged at intervals along the circumferential edge of the first housing 18 , and the second magnetic pieces 17 correspond to the The peripheral edge of the second housing 17 is provided.

Specifically, a plurality of the first magnetic members 14 and the second magnetic members 17 may be provided respectively, the plurality of first magnetic members 14 are arranged at intervals along the circumferential edge of the first housing 18 , and the second magnetic members 17 correspond to the first magnetic members The positions of 14 are symmetrically arranged to increase the mutual attraction force between the first shell 18 and the second shell 19 when they are folded, increase the pressure received by the piezoelectric component, and wake up the second screen more reliably.

Optionally, referring to FIG. 4 , the first housing 18 is provided with a camera assembly 15 , and the distance between the first magnetic member 14 and the camera assembly 15 is greater than or equal to 5 mm.

Specifically, the sensor of the camera assembly 15 will respond to the magnetic field. If magnets are placed next to these sensors, the magnetic field can interfere with or temporarily disable the sensors. It will not only reduce the accuracy of the sensor, but also limit the movable range of the lens. Therefore, the first magnetic member 14 can be set at a distance greater than or equal to 5 mm from the camera assembly 15 of the electronic device, so as to prevent the magnetic field from interfering with the camera assembly 15. In the whole electronic device, the number of magnetic parts should be less than a preset threshold, such as 7, so as to reduce the interference to the camera assembly.

Optionally, referring to FIG. 4 , the piezoelectric component 13 includes a first piezoelectric component and a second piezoelectric component, the first piezoelectric component is provided in the first housing 18 , and the second piezoelectric component is provided in the second housing 19 , when the first housing 18 and the second housing 19 are folded, the first piezoelectric component is opposite to the second piezoelectric component.

Specifically, the piezoelectric component 13 provided in the first housing 18 is used as the first piezoelectric component, the piezoelectric component 13 provided in the second housing is used as the second piezoelectric component, and the first piezoelectric component is connected to the second piezoelectric component. The positions of the components are symmetrical with each other. Since the first magnetic member 14 and the first piezoelectric member are arranged overlappingly, and the second magnetic member 17 is arranged overlapping the second piezoelectric member, when the first housing 18 and the second housing 19 are folded, the The piezoelectric components 13 located in the first housing 18 and the second housing 19, respectively, under the action of mutual pressure, generate current to wake up the second screen 12. Setting two sets of symmetrical piezoelectric components 13 can avoid setting only a single pressure sensor. When the electrical component fails, the second screen cannot be woken up, and at the same time, when the first housing 18 and the second housing 19 are folded, the magnitude of the force on the piezoelectric components at different positions is different, so that the pressure at some positions is avoided. In the case where the electrical components may not be able to effectively wake up the second screen, the work of the piezoelectric components can be made more reliable by arranging 4 piezoelectric components symmetrically.

Optionally, referring to FIG. 4, the electronic device includes a rotating shaft 16, the first side of the first casing 18 is connected to the rotating shaft 16, the second side of the first casing 18 is provided with at least one piezoelectric component, the first side The side is opposite the second side.

Specifically, the rotating shaft is a component that enables the first housing 18 to rotate relative to the second housing 19. The side where the first housing 18 is connected to is the first side, and the side opposite to the first side is the first side. Piezoelectric components 13 can be provided on the two sides and the second side, so that the first casing and the second casing are sucked together.

The rotating shaft 16 can be made of zirconium alloy liquid metal or other materials, which increases the service life of the rotating shaft and reduces the creases generated when the first screen is folded. Further, the piezoelectric component includes a piezoelectric material film to reduce the occupied internal space of the electronic device. The piezoelectric material film can be a piezoelectric ceramic, which has strong piezoelectricity, high dielectric constant, and can be processed into any shape. , or other materials with piezoelectric effect, which are not limited in this embodiment of the present invention.

Optionally, referring to FIG. 4 , the piezoelectric component 13 is disposed under the frame of the first housing 18 and at a position away from the bend.

Specifically, when setting the position of the piezoelectric component 13, it can be set at a position away from the bend of the first housing 18. If the piezoelectric component 13 is arranged at the bend, when the first housing 18 is folded , the mechanical bending angle generated at the bending place is relatively large, and it is easy to cause damage to the piezoelectric component itself. Therefore, setting it at a position away from the bending place of the first housing 18 can not only wake up the second screen, but also avoid Piezoelectric components are damaged, affecting performance.

In addition, a piezoelectric component can also be arranged at any position on the screen or frame, so as to double-click the screen or open the camera or start other services by applying pressure to the piezoelectric component, which is not limited in this embodiment of the present invention.

Optionally, referring to FIG. 10 , the piezoelectric component includes a piezoelectric material and a control circuit electrically connected to the piezoelectric material; the control circuit includes a first trigger circuit 20 , a second trigger circuit 30 and a third trigger circuit that are connected in sequence 40; the first trigger circuit 20 is configured to receive the electrical signal generated by the deformation of the piezoelectric material, and output a first high-level signal to the second trigger circuit 30 based on the electrical signal to turn on the second trigger circuit 30, so that the second trigger circuit 30 30 outputs a second high-level signal to the third trigger circuit 40 to turn on the third trigger circuit 40, and the third trigger circuit 40 is used to wake up the second screen in the case of being turned on.

Optionally, the first trigger circuit 20 includes: a first switch 23, a first power supply unit 22, a voltage stabilization unit 21, a first resistor 25, a second resistor 26, a third resistor 27, and a first ground terminal 24; One end of the unit 21 is connected to the piezoelectric material, the other end of the voltage stabilizing unit 21 is connected to one end of the first resistor 25 , and the other end of the first resistor 25 is connected to the first connection point of the first switch 23 . The second connection point is connected to one end of the second resistor 26 , the other end of the second resistor 26 is connected to the first power supply unit 22 , the third connection point of the first switch 23 is connected to one end of the third resistor 27 , and the third resistor 27 The other end is connected to the first ground terminal 24; after the electrical signal generated by the deformation of the piezoelectric material is subjected to the voltage stabilization process by the voltage stabilization unit 21, the first switch 23 is triggered to open, so that the first power supply unit 22 sends the transmission to the second trigger circuit 30. The first high level signal.

Specifically, in the embodiment of the present invention, after the received electrical signal, a voltage stabilization process can be performed by a filter circuit, and the clutter of the interference circuit can be filtered, so as to protect the electronic device. The filtering method can use passive component capacitors or inductors, and use their energy storage characteristics for voltage and current to achieve the purpose of filtering. Referring to FIG. 10 , when the electronic device is folded, a level E is generated from the piezoelectric module P+, and after the voltage stabilization by the voltage stabilization unit 21, the first switch 23 (TR1) is triggered to open, and the first switch 23 only needs a very small current. It can be turned on, and the first power supply unit 22 (VCC1.8 (Volt Current Condenser, power supply voltage)) can generate a first high-level signal and input it to the second trigger circuit 30 .

Optionally, the second trigger circuit 30 includes: a processing unit 31, a fourth resistor 34, a second power supply unit 32, and a second ground terminal 33; the fourth connection point of the processing unit 31 is connected to the first trigger circuit 20, and the processing unit The fifth connection point of 31 is connected to the second power supply unit 32, the sixth connection point of the processing unit 31 is connected to the second ground terminal 33, the seventh connection point of the processing unit 31 is connected to one end of the fourth resistor 34, and the fourth resistor The other end of 34 is connected to the third trigger circuit 40; the processing unit 31 receives the first high-level signal, so that the processing unit 31 generates a second high-level signal, and sends the second high-level signal to the third trigger circuit 40 .

Specifically, the first high-level signal is input to the processing unit 31 (CPU (central processing unit, central processing unit)), and the processing unit 31 is triggered to generate a high-level switching signal, which is input to the third trigger circuit 40 .

Optionally, the third trigger circuit 40 includes: a second switch 41, a third switch 42, a third power supply unit 43, a fifth resistor 44 and a third ground terminal 45; the eighth connection point of the second switch 41 and the second The trigger circuit 30 is connected, the ninth connection point of the second switch 41 is connected to the eleventh connection point of the third switch 42, the tenth connection point of the second switch 41 is connected to the third ground terminal 45, and the first connection point of the third switch 42 is connected to the third ground terminal 45. The twelve connection points are connected to the third power supply unit 43, the thirteenth connection point of the third switch 42 is connected to the second screen, the third power supply unit 43 is connected to one end of the fifth resistor 44, and the other end of the fifth resistor 44 It is connected to the eleventh connection point of the third switch 42; the second switch 41 receives the second high-level signal and triggers the second switch 41 to open, so that the third switch 42 is connected to the third ground terminal 45, and the third ground terminal 45 generates a low-level signal, triggering the third switch 42 to open, so that the third power supply unit 43 sends a third high-level signal to the second screen, and the third high-level signal is used to wake up the second screen.

Specifically, the second switch 41 (TR2) is turned on by the second high-level signal, and the third switch 42 (Q2) is further turned on, so that the third power supply unit 43 (the screen power supply VBAT (Voltage of Battery, battery voltage)) is normally supplied to the The second screen is powered, and the screen is normally lit; when the electronic device is not folded, the level E is 0, the first switch and the second switch are not turned on, the second screen is not powered normally, and the screen is not lit.

To sum up, the present invention discloses an electronic device, comprising a device main body, a first screen, a second screen and a piezoelectric component respectively arranged on the device main body; the second screen and the first screen are respectively located on different surfaces of the device main body; The main body of the device includes a first casing and a second casing that can rotate relatively, the first screen is arranged on one side of the first casing, the second screen is arranged on the other side of the first casing, and the first casing is provided with Piezoelectric assembly; when the first casing and the second casing are folded, the piezoelectric assembly located between the first casing and the second casing is pressed to wake up the second screen. When the first shell and the second shell are folded, the piezoelectric component is deformed by pressure to generate an electrical signal, and the generated electrical signal can be used as a signal to wake up the second screen. The pressure generated when the first casing and the second casing are folded can wake up the second screen sensitively, reducing the power consumption of the electronic device.

In the second aspect, referring to FIG. 9 , an embodiment of the present invention provides a method for waking up the second screen of an electronic device, and the method may include:

Step 101: Obtain the electrical signal generated by the piezoelectric component when the first housing and the second housing of the electronic device are folded;

In the embodiment of the present invention, if the first casing and the second casing are folded, after the folding, the piezoelectric component will generate an electrical signal under pressure. By obtaining the electrical signal of the piezoelectric component, it can be determined that the first The folding state of the housing and the second housing is based on the folding state of the first housing and the second housing to control whether to wake up the second screen.

Step 102: Wake up the second screen of the electronic device according to the electrical signal.

In the embodiment of the present invention, if the first casing and the second casing are folded, the second screen can be awakened according to the electrical signal generated by the piezoelectric component; if the first casing and the second casing are unfolded, the The current of the piezoelectric component disappears, that is, there is no need to wake up the second screen.

To sum up, an embodiment of the present invention provides a method for waking up the second screen of an electronic device, including: acquiring an electrical signal generated by a piezoelectric component when the first housing and the second housing of the electronic device are folded; Wake up the second screen of the electronic device according to the electrical signal. A piezoelectric component is arranged in the circumferential direction of the first casing of the electronic device. When the first casing is folded, the piezoelectric component is deformed by pressure to generate an electrical signal, and the generated electrical signal can be used as a signal to wake up the second screen. Without a Hall sensor, the second screen can be awakened sensitively through the pressure generated when the first screen is folded, which reduces the power consumption of the electronic device.

The method for waking up the second screen of an electronic device provided by the embodiment of the present application may be executed by an electronic device. In the embodiments of the present application, the electronic device provided by the embodiments of the present application is described by taking a method for an electronic device to execute a method for waking up the second screen of the electronic device as an example.

FIG. 11 is a block diagram of an electronic device provided by an embodiment of the present invention. As shown in FIG. 11 , the electronic device 200 includes:

a signal acquisition module for acquiring the electrical signal generated by the piezoelectric component when the first casing and the second casing of the electronic device are folded;

The second screen wake-up module is configured to wake up the second screen of the electronic device according to the electrical signal.

To sum up, an electronic device provided by an embodiment of the present invention includes: a signal acquisition module for acquiring an electrical signal generated by a piezoelectric component when the first housing and the second housing of the electronic device are folded; The two-screen wake-up module is used to wake up the second screen of the electronic device according to the electrical signal. Piezoelectric components are arranged on the first casing and the second casing of the first screen of the electronic device. When the first casing and the second casing are folded, the piezoelectric components are deformed under pressure to generate electrical signals, and the generated electrical signals can be used as The signal to wake up the second screen realizes that the second screen can be woken up sensitively by the pressure generated when the first screen is folded without setting the Hall sensor, which reduces the power consumption of the electronic device.

The apparatus for executing the method for waking up the second screen of the electronic device in the embodiment of the present application may be an electronic device, or may be a component in the electronic device, such as an integrated circuit or a chip. The electronic device may be a terminal, or may be other devices other than the terminal. Exemplarily, the electronic device may be a mobile phone, a tablet computer, a notebook computer, a PDA, a vehicle electronic device, a Mobile Internet Device (MID), an augmented reality (AR)/virtual reality (VR) ) device, robot, wearable device, ultra-mobile personal computer (UMPC), netbook or personal digital assistant (PDA), etc., and can also be a server, a network attached storage (Network Attached Storage, NAS) ), personal computer (personal computer, PC), television (television, TV), teller machine or self-service machine, etc., which are not specifically limited in the embodiments of the present application.

The apparatus for executing the method for waking up the second screen of the electronic device in the embodiment of the present application may be an apparatus having an operating system. The operating system may be an Android (Android) operating system, an ios operating system, or other possible operating systems, which are not specifically limited in the embodiments of the present application.

The electronic device provided in the embodiment of the present application can implement each process implemented by the method embodiment of FIG. 7 , and to avoid repetition, details are not described here.

Optionally, as shown in FIG. 12 , an embodiment of the present application further provides an electronic device 400 , including a processor 401 and a memory 402 . The memory 402 stores programs or instructions that can run on the processor 401 . When the program or instruction is executed by the processor 401, each step of the foregoing method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, details are not repeated here.

It should be noted that the electronic devices in the embodiments of the present application include the aforementioned mobile electronic devices and non-mobile electronic devices.

FIG. 13 is a schematic diagram of a hardware structure of an electronic device implementing an embodiment of the present application.

The electronic device 1000 includes but is not limited to: a radio frequency unit 1001, a network module 1002, an audio output unit 1003, an input unit 1004, a sensor 1005, a display unit 1006, a user input unit 1007, an interface unit 1008, a memory 1009, and a processor 1010, etc. part.

Those skilled in the art can understand that the electronic device 1000 may also include a power source (such as a battery) for supplying power to various components, and the power source may be logically connected to the processor 1010 through a power management system, so that the power management system can manage charging, discharging, and power functions. consumption management and other functions. The structure of the electronic device shown in FIG. 13 does not constitute a limitation on the electronic device. The electronic device may include more or less components than the one shown, or combine some components, or arrange different components, which will not be repeated here. .

Wherein, the electronic device may further include: a device main body, a first screen, a second screen and a piezoelectric component respectively disposed on the device main body; the second screen and the first screen are respectively located on the device main body different surfaces;

The device main body includes a relatively rotatable first casing and a second casing, the first screen is arranged on one side of the first casing, and the second screen is arranged on the first casing. On the other side, the first housing is provided with a piezoelectric component;

When the first casing and the second casing are folded, the piezoelectric assembly located between the first casing and the second casing is pressed to wake up the second screen.

Optionally, the electronic device further includes: a first magnetic member and a second magnetic member, the first magnetic member is provided on the first housing, and the second magnetic member is provided on the second housing ;

The orthographic projection of the first magnetic member on the plane where the first housing is located overlaps the orthographic projection of the piezoelectric component on the plane where the first housing is located;

When the first casing and the second casing are folded, the first magnetic member and the second magnetic member are sucked together.

Optionally, when the first casing and the second casing are folded, the piezoelectric component is located between the first magnetic member and the second magnetic member.

Optionally, it includes a plurality of first magnetic pieces and a plurality of second magnetic pieces, the first magnetic pieces are arranged at intervals along the circumferential edge of the first housing, and the second magnetic pieces correspond to the The peripheral edges of the two shells are arranged.

Optionally, the first housing is provided with a camera assembly, and the distance between the first magnetic member and the camera assembly is greater than or equal to 5 mm.

Optionally, the piezoelectric component includes a first piezoelectric component and a second piezoelectric component, the first piezoelectric component is provided in the first housing, and the second piezoelectric component is provided in the first piezoelectric component. Two casings, when the first casing and the second casing are folded, the first piezoelectric component and the second piezoelectric component are opposite to each other.

Optionally, it includes a rotating shaft, the first side of the first casing is connected to the rotating shaft, the second side of the first casing is provided with at least one of the piezoelectric components, and the first side is The edge is opposite the second side edge.

Optionally, the piezoelectric component includes a piezoelectric material and a control circuit electrically connected to the piezoelectric material; the control circuit includes a first trigger circuit, a second trigger circuit and a third trigger circuit connected in sequence;

The first trigger circuit is configured to receive an electrical signal generated by the deformation of the piezoelectric material, and output a first high-level signal to the second trigger circuit based on the electrical signal to turn on the second trigger circuit, causing the second trigger circuit to output a second high-level signal to the third trigger circuit to turn on the third trigger circuit, and the third trigger circuit is used to wake up the second trigger circuit when it is turned on Screen.

Optionally, the first trigger circuit includes: a first switch, a first power supply unit, a voltage stabilization unit, a first resistor, a second resistor, a third resistor, and a first ground terminal;

One end of the voltage stabilization unit is connected to the piezoelectric material, the other end of the voltage stabilization unit is connected to one end of the first resistor, and the other end of the first resistor is connected to the first end of the first switch. The connection point is connected, the second connection point of the first switch is connected to one end of the second resistor, the other end of the second resistor is connected to the first power supply unit, and the third connection of the first switch is connected The point is connected to one end of the third resistor, and the other end of the third resistor is connected to the first ground terminal;

After the electrical signal generated by the deformation of the piezoelectric material is subjected to voltage stabilization processing by the voltage stabilization unit, the first switch is triggered to open, so that the first power supply unit sends the first high voltage to the second trigger circuit. level signal.

Optionally, the second trigger circuit includes: a processing unit, a fourth resistor, a second power supply unit, and a second ground terminal;

The fourth connection point of the processing unit is connected to the first trigger circuit, the fifth connection point of the processing unit is connected to the second power supply unit, and the sixth connection point of the processing unit is connected to the second power supply unit the ground terminal is connected, the seventh connection point of the processing unit is connected to one end of the fourth resistor, and the other end of the fourth resistor is connected to the third trigger circuit;

The processing unit receives the first high-level signal, so that the processing unit generates the second high-level signal, and sends the second high-level signal to the third trigger circuit.

Optionally, the third trigger circuit includes: a second switch, a third switch, a third power supply unit, a fifth resistor, and a third ground terminal;

The eighth connection point of the second switch is connected to the second trigger circuit, the ninth connection point of the second switch is connected to the eleventh connection point of the third switch, and the first connection point of the second switch is connected. The tenth connection point is connected to the third ground terminal, the twelfth connection point of the third switch is connected to the third power supply unit, and the thirteenth connection point of the third switch is connected to the second screen connection, the third power supply unit is connected to one end of the fifth resistor, and the other end of the fifth resistor is connected to the eleventh connection point of the third switch;

The second switch receives the second high-level signal and triggers the second switch to open, so that the third switch is connected to the third ground terminal, and the third ground terminal generates a low-level signal , triggering the third switch to be turned on, so that the third power supply unit sends a third high-level signal to the second screen, and the third high-level signal is used to wake up the second screen.

To sum up, with the above-mentioned electronic equipment, piezoelectric components are arranged in the circumferential direction of the first casing and the second casing of the electronic equipment. When the first casing and the second casing are folded, the piezoelectric components are deformed under pressure. Electrical signal, the generated electrical signal can be used as a signal to wake up the second screen, realizing the sensitive wake-up of the second screen by the pressure generated when the first shell and the second shell are folded without a Hall sensor. Two screens, reducing the power consumption of electronic equipment.

The processor 1010 is configured to acquire the electrical signal generated by the piezoelectric component when the first casing and the second casing of the electronic device are folded; and wake up the second screen of the electronic device according to the electrical signal.

To sum up, by executing the above method by the processor, the piezoelectric components are arranged in the circumferential direction of the first casing and the second casing of the electronic device. When the first casing and the second casing are folded, the piezoelectric components are subjected to pressure and generate Deformation generates an electrical signal, which can be used as a signal to wake up the second screen, so that the pressure generated when the first screen is folded can be used to wake up the second screen sensitively without setting up a Hall sensor. power consumption of electronic equipment.

It should be understood that, in this embodiment of the present application, the input unit 1004 may include a graphics processor (Graphics Processing Unit, GPU) 10041 and a microphone 10042. camera) to process the image data of still pictures or videos. The display unit 1006 may include a display panel 10061, which may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 1007 includes at least one of a touch panel 10071 and other input devices 10072 . The touch panel 10071 is also called a touch screen. The touch panel 10071 may include two parts, a touch detection device and a touch controller. Other input devices 10072 may include, but are not limited to, physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which will not be repeated here.

The memory 1009 may be used to store software programs as well as various data. The memory 1009 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, an application program or instructions required for at least one function (such as a sound playback function, image playback function, etc.), etc. Additionally, memory 1009 may include volatile memory or non-volatile memory, or memory 1009 may include both volatile and non-volatile memory. The non-volatile memory may be Read-Only Memory (ROM), Programmable ROM (PROM), Erasable Programmable Read-Only Memory (ErasablePROM, EPROM), Electrically Erasable Program read-only memory (Electrically EPROM, EEPROM) or flash memory. Volatile memory can be random access memory (Random Access Memory, RAM), static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random access memory (Synchronous random access memory) DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDRSDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (Synchlink DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DRRAM). The memory 1009 in this embodiment of the present application includes, but is not limited to, these and any other suitable types of memory.

The processor 1010 may include one or more processing units; optionally, the processor 1010 integrates an application processor and a modem processor, wherein the application processor mainly handles operations related to the operating system, user interface, and application programs, etc. Modem processors mainly deal with wireless communication signals, such as baseband processors. It can be understood that, the above-mentioned modulation and demodulation processor may not be integrated into the processor 1010.

The application embodiment also provides a readable storage medium, on which a program or an instruction is stored, and when the program or instruction is executed by a processor, each process of the above method embodiment can be realized, and the same technical effect can be achieved. , in order to avoid repetition, it will not be repeated here.

Wherein, the processor is the processor in the electronic device described in the foregoing embodiments. The readable storage medium includes a computer-readable storage medium, such as computer read-only memory ROM, random access memory RAM, magnetic disk or optical disk, and the like.

An embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a program or an instruction to implement each process of the foregoing method embodiments , and can achieve the same technical effect, in order to avoid repetition, it is not repeated here.

It should be understood that the chip mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip, a system-on-a-chip, or a system-on-a-chip, or the like.

The embodiments of the present application provide a computer program product, the program product is stored in a storage medium, and the program product is executed by at least one processor to implement the various processes in the above method embodiments, and can achieve the same technical effect, which is To avoid repetition, I will not repeat them here.

It should be noted that, herein, the terms "comprising", "comprising" or any other variation thereof are intended to encompass non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements, It also includes other elements not expressly listed or inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in a process, method, article or apparatus that includes the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in the reverse order depending on the functions involved. To perform functions, for example, the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to some examples may be combined in other examples.

From the description of the above embodiments, those skilled in the art can clearly understand that the method of the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is better implementation. Based on such understanding, the technical solutions of the present application can be embodied in the form of computer software products, which are essentially or contribute to the prior art, and the computer software products are stored in a storage medium (such as ROM/RAM, magnetic disk , CD-ROM), including several instructions to make a terminal (which may be a mobile phone, a computer, a server, or a network device, etc.) execute the methods described in the various embodiments of the present application.

The embodiments of the present application have been described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific embodiments, which are merely illustrative rather than restrictive. Under the inspiration of this application, without departing from the scope of protection of the purpose of this application and the claims, many forms can be made, which all fall within the protection of this application.

Claims (11)

1. An electronic device is characterized by comprising a device main body, a first screen, a second screen and a piezoelectric component, wherein the first screen, the second screen and the piezoelectric component are respectively arranged on the device main body; the second screen and the first screen are respectively positioned on different surfaces of the equipment main body;

the equipment main body comprises a first shell and a second shell which can rotate relatively, the first screen is arranged on one side of the first shell, the second screen is arranged on the other side of the first shell, and the first shell is provided with a piezoelectric assembly;

under the condition that the first shell and the second shell are folded, the piezoelectric assembly between the first shell and the second shell is pressed to wake up the second screen.

2. The electronic device of claim 1, further comprising a first magnetic member and a second magnetic member, wherein the first magnetic member is disposed in the first housing, and the second magnetic member is disposed in the second housing;

the orthographic projection of the first magnetic part on the plane where the first shell is located is overlapped with the orthographic projection of the piezoelectric component on the plane where the first shell is located;

under the condition that the first shell and the second shell are folded, the first magnetic part and the second magnetic part are attracted.

3. The electronic device according to claim 2, wherein the piezoelectric assembly is located between the first magnetic member and the second magnetic member when the first housing and the second housing are folded.

4. The electronic device of claim 2, comprising a plurality of first magnetic members and a plurality of second magnetic members, wherein the first magnetic members are spaced along a circumferential edge of the first housing, and the second magnetic members are correspondingly disposed along a circumferential edge of the second housing.

5. The electronic device of claim 2, wherein the first housing is provided with a camera assembly, and a distance between the first magnetic member and the camera assembly is greater than or equal to 5 mm.

6. The electronic device according to claim 1, wherein the piezoelectric element includes a first piezoelectric element and a second piezoelectric element, the first piezoelectric element is provided in the first case, the second piezoelectric element is provided in the second case, and the first piezoelectric element and the second piezoelectric element are opposed to each other when the first case and the second case are folded.

7. The electronic device according to claim 1, comprising a rotation shaft, wherein a first side of the first housing is connected to the rotation shaft, and a second side of the first housing is provided with at least one of the piezoelectric elements, and the first side is opposite to the second side.

8. The electronic device of claim 1, wherein the piezoelectric assembly comprises a piezoelectric material and a control circuit electrically connected to the piezoelectric material; the control circuit comprises a first trigger circuit, a second trigger circuit and a third trigger circuit which are connected in sequence;

the first trigger circuit is used for receiving an electric signal generated by deformation of the piezoelectric material, and outputting a first high-level signal to the second trigger circuit based on the electric signal to conduct the second trigger circuit, so that the second trigger circuit outputs a second high-level signal to the third trigger circuit to conduct the third trigger circuit, and the third trigger circuit is used for awakening the second screen under the conduction condition.

9. The electronic device of claim 8, wherein the first trigger circuit comprises: the power supply circuit comprises a first switch, a first power supply unit, a voltage stabilizing unit, a first resistor, a second resistor, a third resistor and a first grounding end;

one end of the voltage stabilizing unit is connected with the piezoelectric material, the other end of the voltage stabilizing unit is connected with one end of the first resistor, the other end of the first resistor is connected with the first connecting point of the first switch, the second connecting point of the first switch is connected with one end of the second resistor, the other end of the second resistor is connected with the first power supply unit, the third connecting point of the first switch is connected with one end of the third resistor, and the other end of the third resistor is connected with the first grounding terminal;

after the electric signal generated by the deformation of the piezoelectric material is subjected to voltage stabilization processing by the voltage stabilization unit, the first switch is triggered to be opened, so that the first power supply unit sends the first high-level signal to the second trigger circuit.

10. The electronic device of claim 8, wherein the second trigger circuit comprises: the processing unit, the fourth resistor, the second power supply unit and the second grounding end;

a fourth connection point of the processing unit is connected with the first trigger circuit, a fifth connection point of the processing unit is connected with the second power supply unit, a sixth connection point of the processing unit is connected with the second grounding terminal, a seventh connection point of the processing unit is connected with one end of the fourth resistor, and the other end of the fourth resistor is connected with the third trigger circuit;

the processing unit receives the first high level signal, so that the processing unit generates a second high level signal and sends the second high level signal to the third trigger circuit.

11. The electronic device of claim 8, wherein the third trigger circuit comprises: the second switch, the third power supply unit, the fifth resistor and the third grounding terminal;

the eighth connection point of the second switch is connected with the second trigger circuit, the ninth connection point of the second switch is connected with the eleventh connection point of the third switch, the tenth connection point of the second switch is connected with the third ground terminal, the twelfth connection point of the third switch is connected with the third power supply unit, the thirteenth connection point of the third switch is connected with the second screen, the third power supply unit is connected with one end of the fifth resistor, and the other end of the fifth resistor is connected with the eleventh connection point of the third switch;

the second switch receives the second high level signal, triggers the second switch to be opened, enables the third switch to be conducted with the third grounding terminal, generates a low level signal at the third grounding terminal, triggers the third switch to be opened, enables the third power supply unit to send a third high level signal to the second screen, and is used for awakening the second screen.

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