CN116048246A

CN116048246A - Display assembly and control method of display device

Info

Publication number: CN116048246A
Application number: CN202211025230.4A
Authority: CN
Inventors: 张伟; 张友军; 齐骞
Original assignee: Honor Device Co Ltd
Current assignee: Honor Device Co Ltd
Priority date: 2022-08-25
Filing date: 2022-08-25
Publication date: 2023-05-02
Anticipated expiration: 2042-08-25
Also published as: CN116048246B

Abstract

The application provides a display assembly and a control method of display equipment, relates to the technical field of display, and is used for solving the problems of reducing the cost and design difficulty of the display equipment when realizing cover opening and closing detection. The display assembly includes a display device and a keyboard. The display device includes a first electronic component including a first magnet. The keyboard includes a keyboard body and a first magnetic sensor. The keyboard main body is rotatably connected with the display device. The first magnetic sensor is arranged in the keyboard main body. The keyboard main body is provided with a keyboard surface, the orthographic projection of the first magnetic sensor on the keyboard surface is a first projection, when the display assembly is in a closed state, the orthographic projection of the first magnetic body on the keyboard surface is a second projection, the area which is surrounded by the periphery of the second projection and is 10 mm away from the boundary line of the outline of the second projection is a first area, and the first projection is positioned in the first area. The display assembly provided by the application is used for office or entertainment.

Description

Display assembly and control method of display device

Technical Field

The present disclosure relates to the field of display technologies, and in particular, to a display assembly and a control method of a display device.

Background

Currently, a user of a display device such as a tablet computer, a mobile phone and the like can select a matched leather sheath keyboard to realize typing input, and the display device can be protected by utilizing the leather sheath keyboard to prevent collision and scratch. In order to achieve the purpose of energy saving, when the leather sheath keyboard is closed, the screen of the display device is turned off to enter a dormant state so as to save power consumption; when the leather sheath keyboard is uncapped, the screen automatically lights up and wakes up to realize the display function.

In order to carry out closing and opening detection on the leather sheath keyboard so as to realize screen-off or screen-on control, a Hall sensor is usually installed in display equipment, a magnet is placed in the leather sheath keyboard, and the purpose of closing and opening detection is achieved by sensing the approaching or separating of the magnet through the Hall sensor. However, in this solution, the hall sensor needs to be placed in the display device, and not all users have the use requirement of the leather keyboard, so that the built-in hall sensor is unnecessary for some users, and the cost of the display device is increased, thereby generating waste. Moreover, the magnet arranged in the keyboard can also influence the detection precision of the compass in the display device, and the design difficulty of the display device is increased.

Disclosure of Invention

The embodiment of the application provides a display assembly and a control method of display equipment, which are used for solving the problems of reducing the cost and design difficulty of the display equipment when realizing cover opening and closing detection.

In order to achieve the above purpose, the embodiments of the present application adopt the following technical solutions:

in a first aspect, a display assembly is provided that includes a display device and a keyboard. The display device includes a first electronic component including a first magnet. The keyboard includes a keyboard body and a first magnetic sensor. The keyboard body is rotatably connected with the display device so that the display assembly can be switched between an open state and a closed state. The first magnetic sensor is arranged in the keyboard main body and is used for detecting a first magnetic field intensity of a position where the first magnetic sensor is located and generating a first indication signal according to the first magnetic field intensity. The keyboard main body is provided with a keyboard surface, the orthographic projection of the first magnetic sensor on the keyboard surface is a first projection, when the display assembly is in a closed state, the orthographic projection of the first magnetic body on the keyboard surface is a second projection, and the area which is surrounded by the periphery of the second projection and is 10 mm away from the boundary line of the outline of the second projection is a first area. The first projection is located within the first region.

Thus, the distance between the first magnetic sensor and the first magnet gradually increases in the process of uncovering the display assembly. In the process of closing the display assembly, the distance between the first magnetic sensor and the first magnet is gradually reduced. As the distance between the first magnetic sensor and the first magnet increases or decreases, a change in the magnetic field strength detected by the first magnetic sensor is caused. Therefore, the cover opening and closing detection can be realized by means of the cooperation of the first magnetic sensor and the first magnet existing in the display device, and a detection structure is not required to be additionally arranged in the display device, so that the cost of the display device is not increased. Meanwhile, the existing first magnet is used for detecting the opening and closing cover, and the performance of a compass in the display device is not additionally affected, so that the design difficulty of the display device can be reduced.

In a possible implementation manner of the first aspect, the first projection overlaps the second projection. Thus, when the display assembly is in a closed state, the first magnetic sensor is opposite to the first magnet, so that the magnetic field intensity of the position of the first magnetic sensor under the same opening and closing angle can be improved, and the detection sensitivity of the opening and closing cover can be improved.

In a possible implementation manner of the first aspect, the keyboard further includes a support. The support piece is rotatably connected with the keyboard main body, the display equipment is supported and fixed on the support piece, and the display equipment is detachable from the support piece. Thereby, the keyboard body is rotatably connected with the display device by means of the connection structure and the support. On this basis, since the display device is detachable from the support, the display device can be detached from the support for separate use. Therefore, the mode of the notebook computer can be switched to the mode of the tablet computer, and the application flexibility is improved.

In a possible implementation manner of the first aspect, the keyboard further includes a first controller. The first controller is electrically connected with the first magnetic sensor, and is used for receiving a first indication signal from the first magnetic sensor and sending the first indication signal to the display device. There are various ways of transmitting the first indication signal to the display device by means of the first controller. Specifically, the first controller may send the first indication signal to the display device through an external port or a wireless communication manner. Thus, the flexibility of circuit design is high.

In a possible implementation manner of the first aspect, the keyboard further includes a first external port. The first external port is arranged on the supporting piece and is electrically connected with the first controller, and the first controller is used for sending a first indication signal to the display device by means of the first external port. In this way, the first controller sends the first indication signal to the display device by means of the first external port. The first external port is a physical interface, and the stability and reliability of electric connection are better.

In one possible implementation manner of the first aspect, the first external port includes a first power terminal, a first ground terminal, and a first signal terminal; the first power terminal is used for transmitting power signals, the first grounding terminal is used for transmitting grounding signals, and the first signal terminal is used for transmitting communication signals. Therefore, the first controller can send the first indication signal to the display equipment by means of the first external port, and simultaneously can supply power to the first controller and realize the grounding connection of the first controller. The power supply and the auxiliary circuit are not required to be additionally arranged in the keyboard, so that the cost can be saved.

In a possible implementation manner of the first aspect, the first external connection port may not include the first power supply terminal. On the basis, the power supply mode of the display equipment to the keyboard can also adopt a wireless charging mode to realize electric quantity transmission. Alternatively, a power source such as a battery is provided in the keyboard. Therefore, power supply by the display equipment is not needed, so that the circuit structure is low in complexity and convenient to manufacture.

In a possible implementation manner of the first aspect, the keyboard further includes a first wireless communication structure electrically connected to the first controller, and the first controller is configured to send the first indication signal to the display device via the first wireless communication structure. Thus, no physical interface is required to be arranged on the keyboard and the display device, and the neat and consistent appearance can be ensured.

In a possible implementation manner of the first aspect, the first wireless communication structure is a bluetooth or NFC antenna.

In a possible implementation manner of the first aspect, a third external port is provided on the keyboard. The third external port is electrically connected with the first magnetic sensor. The first magnetic sensor is used for directly sending the first indication signal to the display device by means of the third external port. In this way, the first indication signal does not need to pass through the controller, so the circuit structure can be simpler.

In a possible implementation manner of the first aspect, the first magnetic sensor in the keyboard is connected to the first controller, and the first controller receives the first indication signal from the first sensor, generates the control signal according to the first indication signal, and sends the control signal to the display device. Optionally, the control signal is sent to the processor and via the processor to the display screen. The first control unit can thereby control the display screen to be off or on. The method is simple, can reduce the power consumption of the display equipment and is easy to realize.

In a possible implementation manner of the first aspect, the keyboard body includes a keyboard module. The keyboard module is electrically connected with the first controller. In this way, the controller of the keyboard multiplexing keyboard module provided by the application receives the first indication signal and sends the first indication signal to the display device, so that the structural complexity and the cost can be reduced.

In a possible implementation manner of the first aspect, the first magnetic sensor is a hall sensor or a magnetometer. The Hall sensor can detect the range of the magnetic field intensity, cannot detect the specific value of the magnetic field intensity, can simplify the calculation difficulty and reduce the power consumption. Meanwhile, the Hall sensor has the advantages of firm structure, small volume, light weight, long service life, convenient installation, high frequency (up to 1 MHz), shock resistance, dust resistance, greasy dirt resistance, water vapor, salt fog and other pollution or corrosion resistance and the like, and can improve the detection precision of the opening and closing cover and the structural stability of the keyboard. The magnetometer can detect specific values of magnetic field intensity of the position where the magnetometer is located, and flexible design of threshold values in a control program is facilitated.

In a possible implementation manner of the first aspect, the first electronic component is a speaker or an earpiece. The first electronic component comprises a vibrating diaphragm, a voice coil and a magnetic circuit system, wherein the voice coil is fixed on the vibrating diaphragm, the magnetic circuit system is matched with the voice coil to drive the vibrating diaphragm to vibrate, and the magnetic circuit system forms the first magnet.

In one possible implementation of the first aspect, the first electronic component is a vibration motor. The vibration motor comprises a mass block, a coil and a magnet assembly, wherein the magnet assembly is fixed on the mass block, the coil is matched with the magnet assembly to drive the mass block to vibrate, and the magnet assembly forms the first magnet.

In a possible implementation manner of the first aspect, the display device further includes a second electronic component, and the second electronic component includes a second magnet. The keyboard further comprises a second magnetic sensor, wherein the second magnetic sensor is arranged in the keyboard main body, and the second magnetic sensor is used for detecting second magnetic field intensity of the position where the second magnetic sensor is positioned and generating a second indication signal according to the second magnetic field intensity. On the basis, the keyboard main body is provided with a keyboard surface, the orthographic projection of the second magnetic sensor on the keyboard surface is a third projection, when the display assembly is in a closed state, the orthographic projection of the second magnetic sensor on the keyboard surface is a fourth projection, the area which is surrounded by the boundary line which is arranged at the periphery of the fourth projection and is 10 mm away from the outline of the fourth projection is a second area, and the third projection is positioned in the second area. In this way, the keyboard can realize the detection of opening and closing the cover by means of the cooperation of the first magnetic sensor and the first magnet of the display device, and can also realize the detection of opening and closing the cover by means of the cooperation of the second magnetic sensor and the second magnet of the display device, so that the accuracy of the detection of opening and closing the cover can be improved.

In a second aspect, there is provided a control method of a display device in the display assembly according to any one of the above claims, the control method comprising:

receiving a first indication signal, the first indication signal being determined based on a first magnetic field strength detected by a first magnetic sensor;

and transmitting a control signal according to the first indication signal.

In this way, control of the display device can be achieved by means of the first indication signal from the first magnetic sensor. The hardware structure of the display device is not required to be changed, so that the cost is low.

In a possible implementation manner of the second aspect, the first magnetic sensor is a hall sensor, and the first indication signal is at a high level when the display assembly is in an on state; when the display assembly is in a closed state, the first indication signal is at a low level. On the basis, according to the first indication signal, a control signal is sent, which comprises the following steps: transmitting a first control signal when the first indication signal changes from a high level to a low level; and when the first indication signal is changed from low level to high level, transmitting a second control signal. In this way, the detection of opening and closing the cover can be realized, so that different control signals are sent in the cover opening process and the cover closing process, and the control of different functions is realized.

In one possible implementation manner of the second aspect, the first magnetic sensor is a magnetometer. On the basis, according to the first indication signal, a control signal is sent, and the method comprises the following steps: when the magnetic field intensity indicated by the first indication signal is greater than or equal to a first preset threshold value, a first control signal is sent; when the magnetic field intensity indicated by the first indication signal is smaller than or equal to a second preset threshold value, a second control signal is sent; wherein the first preset threshold is greater than the second preset threshold. In this way, the detection of opening and closing the cover can be realized, and different control signals are sent in the cover opening process and the cover closing process so as to realize the control of different functions.

In a possible implementation manner of the second aspect, the display device includes a display screen. On the basis, the first control signal is used for controlling the display screen to be turned off; the second control signal is used for controlling the display screen to be bright. In this way, the display device can be kept in a dormant state while the display assembly is in a closed state. When the display assembly is in an open state, the display screen is awakened to realize a display function, so that the use convenience is improved, and the electric quantity is saved.

In a third aspect, there is provided a computer storage medium comprising computer instructions which, when run on a display device, cause the display device to perform a control method as claimed in any one of the preceding claims.

In a fourth aspect, there is provided a computer program product for, when run on a computer, causing the computer to carry out the control method as claimed in any one of the preceding claims.

The computer storage medium or the computer program product provided in the embodiments of the present application are used to execute the control method according to any one of the above technical solutions, so that the beneficial effects that can be achieved by the computer storage medium or the computer program product can refer to the beneficial effects in the corresponding control method provided above, and are not described herein again.

Drawings

FIG. 1 is a perspective view of a display assembly provided in some embodiments of the present application;

FIG. 2 is an exploded view of the display assembly of FIG. 1;

FIG. 3 is a schematic view of the display assembly of FIG. 1 in a closed state;

FIG. 4 is a schematic structural diagram of a display assembly according to further embodiments of the present application;

FIG. 5 is a schematic structural diagram of a display assembly according to further embodiments of the present application;

FIG. 6 is an exploded view of the display device and keyboard of the display assembly of FIG. 5;

FIG. 7 is a graph showing the variation of the output voltage of the Hall sensor with the magnetic field strength at the location;

fig. 8 is a schematic cross-sectional structure of a display device according to some embodiments of the present application;

FIG. 9 is a state diagram of a display assembly according to some embodiments of the present application during a capping process;

FIG. 10 is a graph showing the relationship between a first indication signal generated by a first magnetic sensor and an included angle θ3;

FIG. 11 is a state diagram of a display assembly provided in some embodiments of the present application during an uncapping process;

FIG. 12 is an exploded view of a display device and a keyboard in a display assembly provided in further embodiments of the present application;

FIG. 13 is an exploded view of a display device and a keyboard in a display assembly provided in further embodiments of the present application;

FIG. 14 is an internal circuit diagram of a display assembly according to some embodiments of the present application;

FIG. 15 is an exploded view of a display device and a keyboard in a display assembly provided in further embodiments of the present application;

FIG. 16 is an exploded view of a display device and a keyboard in a display assembly provided in further embodiments of the present application;

fig. 17 is a flowchart of a control method of a display device according to some embodiments of the present application.

Detailed Description

In the present embodiments, the terms "first," "second," "third," "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", "a third" and a fourth "may explicitly or implicitly include one or more such feature.

In the present embodiments, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

In the embodiment of the present application, "and/or" is merely an association relationship describing an association object, and indicates that three relationships may exist, for example, a and/or B may indicate: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

The application provides a display assembly. Referring to fig. 1 and 2, fig. 1 is a perspective view of a display assembly 100 according to some embodiments of the present application, and fig. 2 is an exploded view of the display assembly 100 shown in fig. 1. The display assembly 100 includes a display device 10 and a keyboard 20.

Wherein the display device 10 is used for displaying video or pictures. The display device 10 includes, but is not limited to, a cell phone, a tablet computer, a laptop computer (laptop), a personal digital assistant (personal digital assistant, PDA), etc., and the various embodiments of fig. 1-2 and the following are exemplary illustrations of the display device 10 as a tablet computer, which should not be construed as a particular limitation of the present application.

The display device 10 has a substantially rectangular flat plate shape. The display device 10 includes a display surface 10a and a back surface 10b. The display surface 10a includes a display interface for displaying pictures or videos, and the display surface 10a may be used as a display interface as a whole or as a display interface in a partial region. The back surface 10b is opposite to the display surface 10 a.

The keyboard 20 is used for facilitating the user to input data and instructions to the display device 10, and meanwhile, the keyboard 20 is also used for protecting the display device 10 from being knocked and scratched. Specifically, the keyboard 20 includes a keyboard main body 21.

In some embodiments, the keyboard body 21 is substantially rectangular flat plate-like. On this basis, for convenience of description of the embodiments hereinafter, an XYZ coordinate system is established, the length direction of the keyboard body 21 is defined as the X-axis direction, the width direction of the keyboard body 21 is defined as the Y-axis direction, and the thickness direction of the keyboard body 21 is defined as the Z-axis direction. It is to be understood that the coordinate system of the keyboard body 21 may be flexibly set according to actual needs, which is not particularly limited herein. In other embodiments, the keyboard body 21 may also be substantially square flat plate-like, circular flat plate-like, oval flat plate-like, or the like.

The keyboard main body 21 includes a keyboard housing 211 and a keyboard module 212, the keyboard housing 211 is used for protecting internal electronic components, the keyboard housing 211 includes a first wall plate 211a, and the first wall plate 211a is approximately parallel to the XY plane. The keyboard module 212 is disposed on the first wall 211a, and the keyboard module 212 is used for inputting data and instructions. On this basis, for convenience of description of the following embodiments, an outer surface of the first wall plate 211a is defined as a keyboard surface A1.

The keyboard main body 21 is rotatably connected with the display apparatus 10 to enable the display assembly 100 to be switched between an open state and a closed state.

The keyboard body 21 may be directly rotatably connected to the display device 10, or may be rotatably connected to the display device 10 by other intermediate structures, which is not particularly limited herein.

In some embodiments, with continued reference to fig. 1 and 2, the keyboard 20 further includes a support 22. The support 22 is rotatably connected to the keyboard main body 21. Specifically, the keyboard 20 further includes a rotational connection structure 23, and the rotational connection structure 23 is connected between the support 22 and the keyboard body 21, and the support 22 and the keyboard body 21 are rotatably connected by the rotational connection structure 23. The rotational coupling structure 23 includes, but is not limited to, flexible structures such as a shaft and a holster. The display device 10 is fixed and supported on the support 22. Thereby, the keyboard main body 21 is rotatably connected with the display apparatus 10 by means of the connection structure 23 and the support 22. On this basis, the manner in which the support 22 fixes the display device 10 includes, but is not limited to, a detachable connection manner such as a magnetic attraction type and a snap-in type. In this way, the display device 10 can be detached from the support 22 for separate use. Therefore, the mode of the notebook computer can be switched to the mode of the tablet computer, and the application flexibility is improved.

In the above-described embodiment, the display apparatus 10 may be supported and fixed on the entire support 22, or may be supported and fixed on a part of the support 22, which is not particularly limited herein. In some embodiments, with continued reference to fig. 1 and 2, the support 22 includes a first support 221 and a second support 222. The first supporting member 221 is rotatably connected to the keyboard body 21 by the above-mentioned rotation connection structure 23, and the second supporting member 222 is rotatably connected to the first supporting member 221. The rotational axis between the second support 222 and the first support 221 is substantially parallel to the rotational axis of the rotational connection 23. The display apparatus 10 is supported and fixed on the second support 222 of the support 22. In this way, when the display assembly 100 is in the open state, the first supporting member 221 may cooperate with the display device 10 and the keyboard main body 21 to form a triangular stable supporting structure shown in fig. 1, so as to prevent the display device 10 from tilting to a side of the supporting member 10 away from the keyboard main body 21.

On the basis of the above, for convenience of description of the embodiments hereinafter, a surface of the support 22 for supporting and fixing the display apparatus 10 is defined as a supporting surface A2. In the embodiment shown in fig. 1 and 2, the supporting surface A2 is a surface of the second supporting member 222.

In some embodiments, referring to fig. 1 and 2, a first magnetic structure 213 may be disposed on the keyboard main body 21, and the first magnetic structure 213 is located between the keyboard module 212 and the rotation connection structure 23. The display device 10 is provided with a second magnetic attraction structure 10c. In some embodiments, the first magnetic attraction structure 213 is a magnet, and the second magnetic attraction structure 10c includes but is not limited to iron, cobalt, nickel, and other substances and alloys thereof, and the first magnetic attraction structure 213 and the second magnetic attraction structure 10c can be fixed by attraction.

The display assembly 100 is switchable between an open state and a closed state.

Fig. 1 and 2 show perspective views of the display assembly 100 in an open state. In this state, the opening angle θ1 of the first support 221 with respect to the keyboard body 21 is an acute angle, and the opening angle θ2 of the second support 222 with respect to the keyboard body 21 is an obtuse angle. The display device 10 is supported and fixed on the second support 222, and the display device 10 is magnetically fixed on the first magnetic structure 213 by means of the second magnetic structure 10c. The fixing manner of the first magnetic structure 213 and the second magnetic structure 10c may be replaced by other fixing manners, such as a threaded connection, a clamping connection, a riveting connection, and the like. In this way, the display apparatus 10, the first support 221 and the keyboard main body 21 form the aforementioned triangle-shaped stable structure, which can support and fix the display apparatus 10 in an inclined position for the convenience of a user, while preventing the display apparatus 10 from being tilted to a side of the support 22 away from the keyboard main body 21.

It should be noted that the structural form of the support 22 and the manner of supporting the display device 10 are not limited to the manner shown in fig. 1 and 2. When the support 22 is in other forms, the support 22 may take other forms in the open state, and is not particularly limited herein.

Referring to fig. 3, fig. 3 is a schematic structural diagram of the display assembly 100 shown in fig. 1 in a closed state, in which the support 22 covers the back surface 10b of the display device 10, and the keyboard main body 21 covers the display surface 10a of the display device 10. In this way, the keyboard 20 can protect the display device 10 from knocks and scratches.

The process of switching the display assembly 100 from the closed state to the open state is an uncapping process. During the opening of the cover, the angle between the display device 10 and the keyboard main body 21 increases. Accordingly, the process of switching the display assembly 100 from the open state to the closed state is a capping process. During the closing process, the angle between the display device 10 and the keyboard main body 21 is reduced.

On the basis of the above, for the purpose of saving energy, when the display assembly 100 is detected to be in the uncapping process, the screen of the display device 10 is lit up to realize the display function. When the display assembly 100 is detected to be in the cover closing process, the screen of the display device 10 is turned off to enter a sleep state to save power consumption.

In order to realize the detection of the opening and closing of the keyboard 20, so as to control the display device 10 to turn on or off, referring to fig. 4, fig. 4 is a schematic structural diagram of a display assembly 100 according to still another embodiment of the present application. Wherein the keyboard 20 is in a flattened state. The display assembly 100 of this embodiment differs from the display assembly 100 shown in fig. 1 in that: a hall sensor H is provided in the display device 10, and a magnet M is provided in the keyboard main body 21 of the keyboard 20. When the display assembly 100 is in the closed state, the set position of the magnet M is substantially opposite to the set position of the hall sensor H. The closing or opening detection purpose is achieved by the fact that the Hall sensor H senses the approaching or the separating of the magnet M. However, in this solution, the hall sensor H needs to be disposed in the display device 10, and not all users of the display device have the use requirement of the keyboard 20, so that it is unnecessary for the users to dispose the hall sensor H in the display device 10, which causes an increase in the cost of the display device 10, thereby causing waste. In addition, in the process of opening and closing the cover, the magnet M disposed in the keyboard main body 21 also affects the detection accuracy of the compass in the display device 10, and increases the design difficulty of the display device 10.

In order to reduce the cost and design difficulty of the display device 10 while implementing the detection of the opening and closing cover, please refer to fig. 5 and 6 together, fig. 5 is a schematic structural diagram of the display assembly 100 according to still other embodiments of the present application, and fig. 6 is an exploded view of the display device 10 and the keyboard 20 in the display assembly 100 shown in fig. 5. Wherein the keyboard module 212 is hidden in fig. 5. In the present embodiment, the display apparatus 10 includes a first electronic component 13. The first electronic component 13 is an electronic component existing in the display device 10. The first electronic component 13 includes, but is not limited to, a sound generating device such as a speaker, a receiver, etc., and the sound generating device is used for converting an electrical signal into a sound for outputting, so as to realize functions of music, voice playing, etc. The first electronic component 13 may also be a vibration motor. The vibration motor is used for vibrating to play a role in prompting a user. The first electronic component 13 includes a first magnet 131.

When the first electronic component 13 is a sound generating device such as a loudspeaker and a receiver, the first electronic component 13 comprises a vibrating diaphragm, a voice coil and a magnetic circuit system, the voice coil is fixed on the vibrating diaphragm, and the magnetic circuit system is matched with the voice coil to drive the vibrating diaphragm to vibrate, so that the airflow of the front cavity is driven to move to form sound. The magnetic circuit forms the first magnet 131.

When the first electronic component 13 is a vibration motor, the first electronic component 13 includes a mass (also referred to as a vibrator), a coil, and a magnet assembly, the magnet assembly is fixed on the mass, and the coil cooperates with the magnet assembly to drive the mass to vibrate. The magnet assembly forms the first magnet 131 described above.

The first magnet 131 generates a magnetic field, and the closer to the first magnet 131, the stronger the magnetic field strength, and the farther from the first magnet 131, the weaker the magnetic field strength.

With continued reference to fig. 5 and 6, the keyboard 20 further includes a first magnetic sensor 24a. The first magnetic sensor 24a is disposed in the keyboard main body 21. Specifically, the first magnetic sensor 24a may be disposed in the keyboard housing 211 of the keyboard body 21 to ensure the consistency of the appearance of the keyboard body 21. The first magnetic sensor 24a is configured to detect a magnetic field strength at a location, and generate a first indication signal, where the first indication signal is configured to indicate the magnetic field strength detected by the first magnetic sensor 24a.

The first magnetic sensor 24a includes, but is not limited to, a hall sensor and a magnetometer. The hall sensor may specifically be a switch-type hall sensor.

In some embodiments, when the first magnetic sensor 24a is a hall sensor, please refer to fig. 7, fig. 7 is a graph showing a change of the output voltage (u) of the hall sensor with the magnetic field intensity (B) at the location. When the magnetic field intensity (B) is 0, the output voltage (u) of the Hall sensor is at a high level, and then when the magnetic field intensity (B) is gradually increased, the magnetic field intensity (B) is increased to a first threshold value B _OP In the above, the output voltage (u) changes from the high level to the low level. When the magnetic field strength (B) is greater than the first threshold B _OP When the output voltage (u) of the Hall sensor is at a low level, the magnetic field strength (B) is gradually reduced to a second threshold value B _RP In the following, the output voltage (u) changes from low level to high level. Wherein the first threshold B _OP Greater than a second threshold B _RP 。

When the first magnetic sensor 24a is a hall sensor, the output voltage (u) of the hall sensor is a first indication signal. The first indication signal can only indicate the range of the magnetic field intensity, cannot indicate the specific value of the magnetic field intensity, can simplify the calculation difficulty and reduce the power consumption. Meanwhile, the Hall sensor has the advantages of firm structure, small volume, light weight, long service life, convenient installation, high frequency (up to 1 MHz), shock resistance, dust resistance, greasy dirt resistance, water vapor, salt fog and other pollution or corrosion resistance and the like, and can improve the detection precision of the opening and closing cover and the structural stability of the keyboard.

It should be noted that different hall sensors have different first threshold values B _OP And a second threshold B _RP When selecting the hall sensor, a first threshold B with a proper size can be selected according to a specific application scene _OP And a second threshold B _RP And according to the first threshold B _OP And a second threshold B _RP A hall sensor is selected.

When the first magnetic sensor 24a is a magnetometer, the magnetometer is capable of detecting a specific value of the magnetic field strength at the location where it is located, facilitating flexible design of the threshold in the control program. At this time, the first indication signal generated by the first magnetic sensor 24a is used to indicate a specific value of the magnetic field strength at the location. In this way, a specific magnetic field strength measurement can be achieved.

On the basis of any of the above embodiments, please refer to fig. 5, wherein the front projection of the first magnetic sensor 24a on the keyboard surface A1 is the first projection K1. When the display assembly 100 is in the above-mentioned closed state, the front projection of the first magnet 131 of the first electronic component 13 on the keyboard surface A1 in the display device 10 is the second projection K2. The area surrounded by the boundary line of the second projection K2, which is 10 mm from the contour line of the second projection K2, is the first area S1. The first projection K1 is located within the first region S1.

Thus, the distance between the first magnetic sensor 24a and the first magnet 131 gradually increases during the opening of the display assembly 100. During the closing process of the display assembly 100, the distance between the first magnetic sensor 24a and the first magnet 131 gradually decreases. As the distance between the first magnetic sensor 24a and the first magnet 131 increases or decreases, a change in the magnetic field strength detected by the first magnetic sensor 24a is caused. Thus, the first magnetic sensor 24a can cooperate with the existing first magnet 131 in the display device 10 to realize cover opening and closing detection, and a detection structure is not required to be additionally arranged in the display device 10, so that the cost of the display device is not increased. Meanwhile, the existing first magnet 131 is used for detecting the opening and closing of the cover, and no additional influence is caused on the performance of a compass in the display device 10, so that the design difficulty of the display device 10 can be reduced.

The technical effects described above are further elucidated below in conjunction with the accompanying drawings.

Referring to fig. 8, fig. 8 is a schematic cross-sectional structure of a display device 10 according to some embodiments of the present application. The display device 10 comprises a display screen 11, a back shell 12 and a first electronic component 13.

The display screen 11 includes a transparent cover 111 and a display module 112, which are stacked. The transparent cover 111 is used for protecting the display module 112, and the material of the transparent cover 111 includes, but is not limited to, glass. The display module 112 is used for displaying video and images. The display module 112 includes, but is not limited to, a self-luminous display module such as an organic light-emitting diode (OLED), and a display module such as a liquid crystal display (liquid crystal display, LCD) that cannot self-emit light and needs to be provided with a backlight module to provide backlight.

The back shell 12 includes a back cover 121 and a bezel 122. The back cover 121 is located at one side of the display module 112 far away from the transparent cover plate 111, the back cover 121 and the display screen 11 are stacked and arranged at intervals, and the frame 122 is located between the back cover 121 and the transparent cover plate 111 of the display screen 11 and surrounds the back cover 121. The frame 122 is fixed to the back cover 121. Illustratively, the bezel 122 may be fixedly attached to the back cover 121 by adhesive. The frame 122 and the back cover 121 may be integrally formed, i.e., the frame 122 and the back cover 121 are integrally formed. The display 11 is fixed to the frame 122. In some embodiments, the display screen 11 may be secured to the bezel 122 by gluing. The display 11, the back cover 121 and the bezel 122 enclose an internal accommodating space of the display device 100. The first electronic component 13 is accommodated in the internal accommodating space.

In the above embodiment, the surface of the display screen 11 away from the back cover 121 forms the display surface 10a, and the surface of the back cover 121 away from the display screen 11 forms the back surface 10b.

When the display device 10 is applied to the display assembly 100 and is closed, referring to fig. 9, fig. 9 is a state diagram of the display assembly 100 in the closing process according to some embodiments of the present application. The first magnetic sensor 24a is a hall sensor, and the first indication signal is an output voltage (u) of the hall sensor. During the closing process, the display device 10 rotates in the direction a1 with respect to the keyboard main body 21, the angle θ3 (equal to the aforementioned angle θ2) between the display device 10 and the keyboard main body 21 decreases,the first magnetic sensor 24a moves in a direction approaching the first magnet 131 in the first electronic component 13, and the magnetic field strength at the position where the first magnetic sensor 24a is located gradually increases. Referring to fig. 10, fig. 10 is a graph showing a relationship between the first indication signal generated by the first magnetic sensor 24a and the included angle θ3. When the display assembly 100 is in the open state, the included angle θ3 is the largest, and the magnetic field strength detected by the first magnetic sensor 24a is the weakest, and the first indication signal is at a high level. In the cover closing process, the included angle theta 3 and the distance are reduced along with time, when the included angle theta 3 is reduced to be lower than a preset included angle a, the first indication signal jumps from high level to low level, and the cover closing detection can be realized by detecting whether the first indication signal jumps from high level to low level. Wherein when θ3 is equal to the preset angle a, the magnetic field strength of the first magnetic sensor 24a is equal to B in FIG. 7 _OP 。

When the display apparatus 10 is applied to the display assembly 100 and the cover is opened, referring to fig. 11, fig. 11 is a state diagram of the display assembly 100 in the process of opening the cover according to some embodiments of the present application. During the door opening process, the display apparatus 10 rotates in the direction a2 with respect to the keyboard main body 21. The angle θ3 between the display device 10 and the keyboard main body 21 increases, the first magnetic sensor 24a moves away from the first magnet 131 in the first electronic component 13, and the magnetic field strength at the position where the first magnetic sensor 24a is located gradually decreases. Referring back to fig. 10, when the display assembly 100 is in the closed state, the included angle θ3 is smallest, and the magnetic field strength detected by the first magnetic sensor 24a is strongest, and the first indication signal is at a low level. In the uncapping process, the included angle theta 3 and the distance are increased along with time, when the included angle theta 3 is increased to be more than the preset included angle b, the first indication signal jumps from the low level to the high level, and uncapping detection can be achieved by detecting whether the first indication signal jumps from the low level to the high level. Wherein when θ3 is equal to the preset angle B, the magnetic field strength of the first magnetic sensor 24a is equal to B in FIG. 7 _RP 。

The above-mentioned process of opening and closing the cover is to use the first magnetic sensor 24a to cooperate with the existing first magnet 131 in the display device 10 to realize the detection of opening and closing the cover, and no additional detection structure is required to be arranged in the display device 10, so that the cost of the display device is not increased. Meanwhile, the existing first magnet 131 is used for detecting the opening and closing of the cover, and no additional influence is caused on the performance of a compass in the display device 10, so that the design difficulty of the display device 10 can be reduced.

In some embodiments, referring back to fig. 5, the first projection K1 overlaps the second projection K2. In this way, when the display unit is in the closed state, the first magnetic sensor 24a faces the first magnet 131, so that the magnetic field intensity at the position where the first magnetic sensor 24a is located can be increased at the same opening/closing angle, and the detection sensitivity of the opening/closing cover can be increased.

The first indication signal generated by the first magnetic sensor 24a needs to be sent to the display device 10, so that the display device 10 can realize on-screen or off-screen control according to the first indication signal. To achieve this, the following first and second embodiments can be employed.

Embodiment one: referring to fig. 5 and 6, the keyboard 20 further includes a first controller 25. In some embodiments, the first controller 25 is a micro control unit (microcontroller unit, MCU). MCU is also called as a single-chip microcomputer (single chip microcomputer) or a single-chip microcomputer. The first controller 25 is electrically connected to the first magnetic sensor 24a, and the first controller 25 is configured to receive a first indication signal from the first magnetic sensor 24a and send the first indication signal to the display device 10.

There are various ways of transmitting the first indication signal to the display device 10 by means of the first controller 25. Specifically, the first controller 25 may send the first indication signal to the display device 10 through an external port or through wireless communication. Thus, the flexibility of circuit design is high.

In some embodiments, with continued reference to fig. 5 and 6, the keyboard 20 further includes a first external port 26. In some embodiments, the first external port 26 may be provided on the support 22. Specifically, the first external connection port 26 may be disposed on the supporting surface A2. The first external port 26 is electrically connected to the first controller 25. The first controller 25 is configured to send a first indication signal to the display device 10 via the first external port 26.

On the basis of the above embodiment, please refer to fig. 6 with emphasis, the back surface 10b of the display device 10 is provided with the second external port 10d. When the display device 10 is supported and fixed on the support 22, the first external port 26 is engaged with the second external port 10d.

In this way, the first controller 25 can send the first indication signal to the display device 10 by means of the first external port 26 cooperating with the second external port 10d. The first external port 26 and the second external port 10d are both physical interfaces, and the stability and reliability of electrical connection are better.

The first external port 26 may include a first power terminal, a first ground terminal, and a first signal terminal. The first power terminal is used for transmitting power signals, the first grounding terminal is used for transmitting grounding signals, and the first signal terminal is used for transmitting communication signals. On the basis of this, the second external port 10d includes a second power supply terminal, a second ground terminal, and a second signal terminal. When the display apparatus 10 is supported and fixed on the support 22, the first external connection port 26 is mated with the second external connection port 10d, and the first power terminal is electrically connected to the second power terminal to supply power to the first controller 25; the first ground terminal is electrically connected to the second ground terminal to effect ground connection of the first controller 25, and the first signal terminal is electrically connected to the second signal terminal to effect signal communication.

In this way, the first controller 25 cooperates with the second external port 10d via the first external port 26, and can supply power to the first controller 25 and implement a ground connection of the first controller 25, in addition to transmitting the first indication signal to the display device 10. No additional power supply and auxiliary circuits are required in the keyboard 20, and cost can be saved.

In the above embodiment, the first external port 26 and the second external port 10d may be plug-in ports or contact ports. Wherein, the plug-in port can be a pogo pin connector. In some embodiments, to ensure surface flatness of the display device 10 and the keyboard 20, the first external port 26 and the second external port 10d are contact ports. Thus, the appearance surface is flat and the neatness is better.

In other embodiments, the first external port 26 may not include the first power terminal, and the second external port 10d may not include the second power terminal. On the basis, the power supply mode of the display device 10 to the keyboard 20 can also adopt a wireless charging mode to realize power transmission. Alternatively, a power source such as a battery is provided in the keyboard 20. In this way, the display device 10 is not needed to supply power, so that the complexity of the circuit structure is low and the manufacturing is convenient.

In still other embodiments, referring to fig. 12, fig. 12 is an exploded view of a display device 10 and a keyboard 20 in a display assembly 100 according to still other embodiments of the present application. In this embodiment, the keyboard 20 further comprises a first wireless communication structure 27. The first wireless communication structure 27 is electrically connected to the first controller 25, the first controller 25 being adapted to send a first indication signal to the display device 10 via the first wireless communication structure 27.

With continued reference to fig. 12, the display device 10 further includes a second wireless communication structure 10e, and the first wireless communication structure 27 cooperates with the second wireless communication structure 10e to transmit the first indication signal to the display device 10. In this way, there is no need to provide physical interfaces on the keyboard 20 and the display device 10, and a neat and uniform appearance can be ensured.

In the above-described embodiment, the first wireless communication structure 27 and the second wireless communication structure 10e include, but are not limited to, bluetooth (blue) and near field communication (near field communication, NFC) antennas, and the like. In some embodiments, the first wireless communication structure 27 and the second wireless communication structure 10e are both bluetooth, which is convenient for transmission, wide in application, and low in implementation difficulty.

The above describes an implementation in which the keyboard 20 sends the first indication signal to the display device 10 by means of the first controller 25. On the basis of this, optionally, the first controller 25 is further electrically connected to the keyboard module 212, so as to control the keyboard module 212. In this way, the controller of the keyboard 20 multiplexing keyboard module 212 provided in the present application receives the first indication signal and sends the first indication signal to the display device 10, which can reduce the structural complexity and the cost.

Embodiment two: referring to fig. 13, fig. 13 is an exploded view of a display device 10 and a keyboard 20 in a display assembly 100 according to still further embodiments of the present application. In this embodiment, the keyboard 20 is provided with a third external port 28. The third external connection port 28 is electrically connected to the first magnetic sensor 24 a. The first magnetic sensor 24a is configured to directly send the first indication signal to the display device 10 via the third external port 28. In some embodiments, with continued reference to fig. 13, the third external port 28 may include a power terminal, a signal terminal, and a ground terminal. It should be noted that, when the keyboard 20 has a power source connected to the first magnetic sensor 24a, the third external port 28 may also include a signal terminal and a ground terminal, instead of the power source terminal.

The display device 10 further includes a fourth external port 10f on the basis of the above-described embodiment. When the display device 10 is supported and fixed on the support 22, the third external connection port 28 is electrically connected with the fourth external connection port 10f in a matching manner, so as to directly send the first indication signal generated by the first magnetic sensor 24a to the display device 10. The structural form of the fourth external port 10f is matched with that of the third external port 28, and will not be described herein.

In this way, the first indication signal does not need to pass through the controller, so the circuit structure is simpler.

Various implementations of the first indication signal generated by the first magnetic sensor 24a being sent to the display device 10 are described above. After receiving the first indication signal, the display device 10 may generate a control signal according to the first indication signal, where the control signal is used to control the display device 10. In some embodiments, the control signal may be used to control the display device 10 to either light up or off the screen.

Referring to fig. 14, fig. 14 is an internal circuit diagram of a display device 100 according to some embodiments of the present application. In this embodiment, the display device 10 includes a processor 14. The processor 14 includes, but is not limited to, an application processor (application processor, AP) and a sensor hub (sensor hub), among others. The display device 10 receives the first indication signal by means of the processor 14 and generates the above-mentioned control signal in dependence of the first indication signal. With continued reference to fig. 14, the processor 14 is also optionally electrically connected to the display 11. The processor 14 transmits the generated control signal to the display screen 11 to control the display screen 11 to be turned on or off.

In this way, the display device 10 realizes the control of the on-screen or off-screen of the display screen 11, and the layout is reasonable and the control is convenient.

In other embodiments, after receiving the first indication signal from the first sensor 24a, the first controller 25 may generate a control signal according to the first indication signal and transmit the control signal to the display device 10. In particular, the control signal may be sent to the processor 14 for transmission to the display screen 11 by the processor 14. The display screen 11 is thereby controlled to be off or on by means of the first controller 25. This is simple, can reduce the power consumption of the display device 10, and is easy to implement.

On the basis of the above embodiment, the first controller 25 may send the control signal to the display device 10 through the first external port 26, or may send the control signal to the display device 10 through the first wireless communication structure 27, which is not specifically limited herein.

In the use process of the keyboard main body 21, deformation such as edge tilt angle is easy to generate, so that the accuracy of detecting the opening and closing cover is low. In order to improve the accuracy of the detection of the opening and closing cover, in some embodiments, please refer to fig. 15, fig. 15 is an exploded view of the display device 10 and the keyboard 20 in the display assembly 100 according to still other embodiments of the present application. In the present embodiment, the display apparatus 10 may include the second electronic component 15 in addition to the first electronic component 13. The second electronic component 15 is also an electronic component existing in the display device 10. The second electronic component 15 includes, but is not limited to, a sound generating device such as a speaker, a receiver, etc., and the second electronic component 15 may also be a vibration motor. The second electronic component 15 includes a second magnet 151.

When the second electronic component 15 is a sound generating device such as a speaker and a receiver, the second electronic component 15 includes a vibrating diaphragm, a voice coil and a magnetic circuit system, the voice coil is fixed on the vibrating diaphragm, and the magnetic circuit system is matched with the voice coil to drive the vibrating diaphragm to vibrate, so that the airflow of the driving front cavity moves to form sound. The magnetic circuit forms the second magnet 151.

When the second electronic component 15 is a vibration motor, the second electronic component 15 includes a mass (also referred to as a vibrator), a coil, and a magnet assembly, the magnet assembly is fixed to the mass, and the coil cooperates with the magnet assembly to drive the mass to vibrate. The magnet assembly forms the second magnet 151 described above.

The second magnet 151 generates a magnetic field, and the closer to the second magnet 151, the stronger the magnetic field strength, and the farther from the second magnet 151, the weaker the magnetic field strength.

On the basis of the above, please continue to refer to fig. 15, the keyboard 20 includes the second magnetic sensor 24b in addition to the first magnetic sensor 24 a. The second magnetic sensor 24b is provided in the keyboard main body 21. Specifically, the second magnetic sensor 24b may be disposed in the keyboard housing 211 of the keyboard body 21 to ensure the consistency of the appearance of the keyboard body 21.

The second magnetic sensor 24b includes, but is not limited to, a hall sensor and a magnetometer. The second magnetic sensor 24b may have the same structural form as the first magnetic sensor 24a, for example, all hall sensors. Of course, the structural form of the second magnetic sensor 24b may also be different from that of the first magnetic sensor 24a, for example, the first magnetic sensor 24a is a hall sensor, and the second magnetic sensor 24b is a magnetometer.

The second magnetic sensor 24b is used for detecting the magnetic field intensity of the position and generating a second indication signal. The second indication signal is used to indicate the magnetic field strength detected by the second magnetic sensor 24 b.

The orthographic projection of the second magnetic sensor 24b on the keyboard plane A1 is the third projection K3. When the display assembly 100 is in the closed state, the front projection of the second magnet 151 of the second electronic component 15 on the keyboard surface A1 in the display device 10 is the fourth projection K4. The area surrounded by the boundary line of the periphery of the fourth projection K4 and 10 mm from the contour line of the fourth projection K4 is the second area S2. The third projection K3 is located in the second region S2.

In this way, the keyboard 20 can realize the open/close cover detection by the cooperation of the first magnetic sensor 24a and the first magnet 131 of the display device 10, and can also realize the open/close cover detection by the cooperation of the second magnetic sensor 24b and the second magnet 151 of the display device 10, thereby improving the accuracy of the open/close cover detection.

It can be appreciated that the first magnetic sensor 24a and the second magnetic sensor 24b may be matched with the first magnet 131 to realize the cover opening and closing detection, or matched with the second magnet 151 to realize the cover opening and closing detection, besides the cover opening and closing detection with the first magnet 131 and the second magnet 151, respectively, which is not limited herein.

For example, referring to fig. 16, fig. 16 is an exploded view of a display device 10 and a keyboard 20 in a display assembly 100 according to further embodiments of the present application. The front projection of the first magnetic sensor 24a on the keyboard plane A1 (i.e., the first projection K1) and the front projection of the second magnetic sensor 24b on the keyboard plane A1 (i.e., the third projection K3) are both located within the first region S1. In this way, the first magnetic sensor 24a and the second magnetic sensor 24b cooperate with the first magnet 131 to realize the cover opening and closing detection, which can also improve the accuracy of the cover opening and closing detection.

It should be noted that, in order to further improve the accuracy of detecting the opening and closing cover, the keyboard 20 may be provided with other magnetic sensors in addition to the first magnetic sensor 24a and the second magnetic sensor 24b, so as to cooperate with the magnets of other electronic components in the display device 10, or cooperate with the first magnet or the second magnet, so as to further improve the accuracy of detecting the opening and closing cover.

In order to realize cover opening and closing detection, the present application further provides a control method of the display device 10, where the display device 10 is the display device 10 in the display assembly 100 according to any of the embodiments. Referring to fig. 17, fig. 17 is a flowchart of a control method of the display device 10 according to some embodiments of the present application, where the control method includes the following steps S100 and S200.

Step S100: a first indication signal is received. The first indication signal is from the first magnetic sensor 24a in the keyboard 20 in the display assembly 100. When the first magnetic sensor 24a is a hall sensor, the first indication signal is an output voltage of the hall sensor. When the first magnetic sensor 24a is a magnetometer, the first indication signal is used to indicate a specific value of the magnetic field strength at the location of the first magnetic sensor 24a.

Step S200: and transmitting a control signal according to the first indication signal.

In this way, control of the display device can be achieved by means of the first indication signal from the first magnetic sensor 24a. There is no need to change the hardware structure of the display device 10, and thus the cost is low.

The specific implementation manner of the step S200 is different according to the different structural forms of the first magnetic sensor 24a, and may specifically include the following two implementation manners, namely, the first implementation manner and the second implementation manner.

In one implementation, the first magnetic sensor 24a is a hall sensor. Specifically, the first magnetic sensor 24a may be a switch-type hall sensor. The first indication signal is the output voltage of the Hall sensor. When the display assembly is in an open state, the first indication signal is in a high level; when the display assembly is in a closed state, the first indication signal is at a low level. On this basis, the step S200 includes: transmitting a first control signal when the first indication signal changes from a high level to a low level; when the first indication signal changes from low level to high level, the second control signal is transmitted. In this way, the detection of opening and closing the cover can be realized, so that different control signals are sent in the cover opening process and the cover closing process, and the control of different functions is realized.

In a second implementation, the first magnetic sensor 24a is a magnetometer. On this basis, the step S200 includes: and when the magnetic field intensity indicated by the first indication signal is greater than or equal to a first preset threshold value, sending a first control signal. And when the magnetic field intensity indicated by the first indication signal is smaller than or equal to a second preset threshold value, sending a second control signal. The first preset threshold value and the second preset threshold value are preset fixed values, the values of which can be determined according to the actual situation, and the first preset threshold value is larger than the second preset threshold value. In this way, the detection of opening and closing the cover can be realized, and different control signals are sent in the cover opening process and the cover closing process so as to realize the control of different functions.

Optionally, in the above two embodiments, the first control signal is used to control the display to be turned off so as to enter the sleep state. The second control signal is used for controlling the display screen to be bright. In this way, the display device 10 may be maintained in a sleep state while the display assembly is in a closed state. When the display assembly is in an open state, the display screen is awakened to realize a display function, so that the use convenience is improved, and the electric quantity is saved. In other embodiments, the first control signal and the second control signal may also be used for other control purposes, and are not specifically limited herein. The following embodiments are illustrative of the first control signal for controlling the display to turn off and the second control signal for controlling the display to turn on, and are not to be construed as limiting the application in any way.

On the basis of the second implementation manner, the step S200 further includes: when the magnetic field intensity indicated by the first indication signal is smaller than a first preset threshold value and larger than a second preset threshold value, the display screen maintains the previous state.

Specifically, when the display assembly is in an on state, the magnetic field strength indicated by the first indication signal is smaller than or equal to a second preset threshold value, and at this time, the display screen of the display device is in a bright screen state. Then, in the process of closing the display assembly, the magnetic field strength indicated by the first indication signal gradually increases along with the reduction of the included angle between the display device and the keyboard main body. When the magnetic field intensity indicated by the first indication signal is larger than the second preset threshold value and smaller than the first preset threshold value, the display screen of the display device is maintained in the last state (namely, the bright screen state). And then, when the magnetic field intensity indicated by the first indication signal is increased to be greater than or equal to a first preset threshold value, a first control signal is sent to control the display screen to be turned off so as to enter a dormant state.

In contrast to the above procedure, when the display assembly is in the closed state, the magnetic field strength indicated by the first indication signal is greater than or equal to the first preset threshold, and at this time, the display screen of the display device is in the off-screen state. Then, in the process of uncovering the display component, the magnetic field strength indicated by the first indication signal gradually decreases along with the increase of the included angle between the display device and the keyboard main body. When the magnetic field intensity indicated by the first indication signal is smaller than the first preset threshold value and larger than the second preset threshold value, the display screen of the display device is maintained in the last state (namely, the screen-off state). And then, when the magnetic field intensity indicated by the first indication signal is reduced to be smaller than or equal to a second preset threshold value, a second control signal is sent to control the display screen to be lightened so as to enter a lightening state.

When the keyboard 20 further includes the second magnetic sensor 24b, the control method further includes, prior to the above step S200: a second indication signal is received. The second indication signal is from the second magnetic sensor 24b. When the second magnetic sensor 24b is a hall sensor, the first indication signal is the output voltage of the second magnetic sensor 24b. On the basis, when the display component is in an open state, the second indication signal is in a high level; when the display assembly is in the closed state, the second indication signal is low. When the second magnetic sensor 24b is a magnetometer, the first indication signal is used to indicate a specific value of the magnetic field strength at the location of the second magnetic sensor 24b.

On the basis of the above, when the first magnetic sensor 24a and the second magnetic sensor 24b are both hall sensors, the step S200 includes: transmitting a first control signal when the first indication signal changes from a high level to a low level and/or the second indication signal changes from a high level to a low level; the second control signal is transmitted when the first indication signal changes from low to high and/or the second indication signal changes from low to high. In this way, as long as one of the first indication signal and the second indication signal satisfies the preset condition, the control signal can be sent, so that the accuracy of detecting the opening and closing cover can be improved, and the influence on the control precision when the keyboard main body 21 of the keyboard 20 generates deformation such as tilting foot can be avoided.

When the first magnetic sensor 24a and the second magnetic sensor 24b are both magnetometers, the step S200 includes: and when the magnetic field intensity indicated by the first indication signal is greater than or equal to a first preset threshold value, and/or the magnetic field intensity indicated by the second indication signal is greater than or equal to a third preset threshold value, transmitting a first control signal. And when the magnetic field intensity indicated by the first indication signal is smaller than or equal to a second preset threshold value, and/or the magnetic field intensity indicated by the second indication signal is smaller than or equal to a fourth preset threshold value, transmitting a second control signal. The first preset threshold, the second preset threshold, the third preset threshold and the fourth preset threshold are all preset fixed values, the values of the first preset threshold, the second preset threshold, the third preset threshold and the fourth preset threshold can be determined according to the actual fact, and the first preset threshold is larger than the second preset threshold and the third preset threshold is larger than the fourth preset threshold. The first preset threshold may be equal to or different from the third preset threshold. The second preset threshold may be equal to or different from the fourth preset threshold, and is not particularly limited herein. In this way, as long as one of the first indication signal and the second indication signal satisfies the preset condition, the control signal can be sent, so that the accuracy of detecting the opening and closing cover can be improved, and the influence on the control precision when the keyboard main body 21 of the keyboard 20 generates deformation such as tilting foot can be avoided.

On the basis of the above embodiment, the step S200 further includes: when the magnetic field intensity indicated by the first indication signal is smaller than the first preset threshold value and larger than the second preset threshold value, and meanwhile, the magnetic field intensity indicated by the second indication signal is smaller than the third preset threshold value and smaller than the fourth preset threshold value, the display screen maintains the previous state.

Some embodiments of the present application also provide a computer storage medium including, but not limited to, a usb disk, a removable hard disk, a read-only memory (ROM), a random access memory (random access memory, RAM), a magnetic or optical disk, and other various media in which program codes may be stored. The computer storage medium includes computer instructions that, when executed on the display device 10, cause the display device 10 to perform the control method described in any of the embodiments above.

Some embodiments of the present application also provide a computer program product which, when run on a computer, causes the computer to perform the control method of any of the embodiments described above.

The computer storage medium or the computer program product provided in the embodiments of the present application are used to execute the control method described in any of the embodiments, so that the beneficial effects achieved by the computer storage medium or the computer program product can refer to the beneficial effects provided in the corresponding control method, and are not described herein.

In the description of the present specification, a particular feature, structure, material, or characteristic may be combined in any suitable manner in one or more embodiments or examples.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and are not limiting thereof; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.

Claims

1. A display assembly, comprising:

the display device comprises a first electronic component, wherein the first electronic component comprises a first magnet;

a keyboard including a keyboard body and a first magnetic sensor; the keyboard main body is rotatably connected with the display device so that the display assembly can be switched between an open state and a closed state; the first magnetic sensor is arranged in the keyboard main body and is used for detecting a first magnetic field intensity of a position where the first magnetic sensor is located and generating a first indication signal according to the first magnetic field intensity;

The keyboard main body is provided with a keyboard surface, the front projection of the first magnetic sensor on the keyboard surface is a first projection, when the display assembly is in the closed state, the front projection of the first magnet on the keyboard surface is a second projection, the area which is surrounded by the boundary line which is arranged at the periphery of the second projection and is 10 mm away from the outline of the second projection is a first area, and the first projection is positioned in the first area.

2. The display assembly of claim 1, wherein the first projection overlaps the second projection.

3. The display assembly of claim 1 or 2, wherein the keyboard further comprises a support rotatably coupled to the keyboard body, the display device is supported and fixed to the support, and the display device is detachable from the support.

4. The display assembly of claim 3, wherein the keyboard further comprises a first controller;

the first controller is electrically connected with the first magnetic sensor, and is used for receiving a first indication signal from the first magnetic sensor and sending the first indication signal to the display device.

5. The display assembly of claim 4, wherein the keyboard further comprises a first external port;

the first external port is arranged on the supporting piece and is electrically connected with the first controller, and the first controller is used for sending the first indication signal to the display device by means of the first external port.

6. The display assembly of claim 5, wherein the first external port comprises a first power terminal, a first ground terminal, and a first signal terminal;

the first power terminal is used for transmitting a power signal, the first grounding terminal is used for transmitting a grounding signal, and the first signal terminal is used for transmitting a communication signal.

7. The display assembly of claim 5, wherein the keyboard further comprises a first wireless communication structure electrically connected to the first controller for transmitting the first indication signal to the display device via the first wireless communication structure.

8. The display assembly of claim 7, wherein the first wireless communication structure is a bluetooth or NFC antenna.

9. The display assembly of any one of claims 4-8, wherein the keyboard body comprises a keyboard module;

the keyboard module is electrically connected with the first controller.

10. The display assembly of any one of claims 1-9, wherein the first magnetic sensor is a hall sensor or a magnetometer.

11. The display assembly of any one of claims 1-10, wherein the first electronic component is a speaker or an earpiece;

the first electronic component comprises a vibrating diaphragm, a voice coil and a magnetic circuit system, wherein the voice coil is fixed on the vibrating diaphragm, the magnetic circuit system is matched with the voice coil to drive the vibrating diaphragm to vibrate, and the magnetic circuit system forms the first magnet.

12. The display assembly of any one of claims 1-10, wherein the first electronic component is a vibration motor;

the vibration motor comprises a mass block, a coil and a magnet assembly, wherein the magnet assembly is fixed on the mass block, the coil is matched with the magnet assembly to drive the mass block to vibrate, and the magnet assembly forms the first magnet.

13. The display assembly of any one of claims 1-12, wherein the display device further comprises a second electronic component comprising a second magnet;

The keyboard further comprises a second magnetic sensor, wherein the second magnetic sensor is arranged in the keyboard main body, and is used for detecting second magnetic field intensity of a position where the second magnetic sensor is positioned and generating a second indication signal according to the second magnetic field intensity;

the keyboard main body is provided with a keyboard surface, the orthographic projection of the second magnetic sensor on the keyboard surface is a third projection, when the display assembly is in the closed state, the orthographic projection of the second magnetic body on the keyboard surface is a fourth projection, an area which is surrounded by the periphery of the fourth projection and is 10 mm away from the boundary line of the outline of the fourth projection is a second area, and the third projection is positioned in the second area.

14. A control method of a display device, characterized in that the display device is a display device in the display assembly according to any one of claims 1 to 13, the control method comprising:

receiving a first indication signal, the first indication signal being determined according to a first magnetic field strength detected by a first magnetic sensor;

and sending a control signal according to the first indication signal.

15. The control method according to claim 14, wherein the first magnetic sensor is a hall sensor, the first indication signal is high when the display assembly is in an open state, and the first indication signal is low when the display assembly is in a closed state;

According to the first indication signal, sending a control signal, including:

transmitting a first control signal when the first indication signal changes from a high level to a low level;

and when the first indication signal is changed from low level to high level, transmitting a second control signal.

16. The control method of claim 14, wherein the first magnetic sensor is a magnetometer;

according to the first indication signal, sending a control signal, including:

when the magnetic field intensity indicated by the first indication signal is greater than or equal to a first preset threshold value, a first control signal is sent;

when the magnetic field intensity indicated by the first indication signal is smaller than or equal to a second preset threshold value, a second control signal is sent;

wherein the first preset threshold is greater than the second preset threshold.

17. The control method according to claim 15 or 16, wherein the display device includes a display screen;

the first control signal is used for controlling the display screen to be turned off;

and the second control signal is used for controlling the display screen to be lightened.

18. A computer storage medium comprising computer instructions which, when run on a display device, cause the display device to perform the control method of any of claims 14-17.

19. A computer program product, characterized in that the computer program product, when run on a computer, causes the computer to carry out the control method according to any one of claims 14-17.