CN112930672B - Mobile terminal - Google Patents

Referring to fig. 1 to 3 together, the mobile terminal 100 provided in the first embodiment of the present invention includes a

10 and a

20, wherein the

20 is detachably mounted on the

10, in other words, the

20 may be mounted on the

10, and the

20 may be separated from the

10.

Referring to fig. 1, in a first usage state, a

20 may be stacked on a

10 to enable the mobile terminal 100 to be in a stacked and combined usage state. In this use state, the mobile terminal 100 can realize functions such as charging and signal transmission. It can be understood that the application scenario of the first usage state includes, but is not limited to, when the electric quantity of the

20 is insufficient, the

20 is stacked on the

10 for charging; when photographing is required, the

20 is laminated on the

10, the camera module on the

10 shoots an image, and the

20 displays the image captured by the camera module.

Referring to fig. 2, in the second usage state, the

20 and the

10 are separated from each other, i.e. the

20 can be separated from the

10 for separate use. The

20 may display an image. The

20 and the

10 can communicate wirelessly, so that the

20 and the

10 can communicate at a certain distance. It will be appreciated that the application scenario of the second use state includes, but is not limited to, when the user is going out, the user places the

10 in a backpack, holds the first sub-set of small-sized

20 to make a call, video chat, play a game, watch a video, etc.

Referring to fig. 3, in the third use state, the

20 stands on the side of the

10 and is supported by the

10 to stand on the side. Under the support of the

10, the

20 can maintain a proper placement angle for the user to watch, and the user does not need to hold the first sub-machine end 20 by hand or fix the first sub-machine end by an external tool, so that the use is convenient. In the present embodiment, the combination of the

20 and the

10 is not limited to the configuration shown in fig. 3. It can be appreciated that the application scenario of the third usage state includes, but is not limited to, the user watching the video in front of the table, placing the host end 10 flat on the table, placing the first sub-machine end 20 on the

10 and fixing the first sub-machine end 20 on the side, and playing the video to the user.

Referring to fig. 11, 12 and 13, fig. 11 is an exploded view of the

20, i.e. an exploded view of the

20, fig. 12 is a front view of the internal structure of the

20, and fig. 13 is a stacked view of the internal structure of the

20. In this embodiment, the

20 includes a

22, a

24 disposed on a side of the

22 other than the

22b, a circuit board and a

242, wherein the circuit board is disposed on a side of the

24 facing away from the

22, the

242 is disposed on the

24, the

242 is connected to the

22 through the

24, the circuit board is provided with a first through

2420 facing the

242, and the

242 is located entirely or partially in the first through

2420.

In this embodiment, the

22 may be a liquid crystal display (Thin Film Transistor-Liquid Crystal Display, TFT-LCD) or an Organic Light Emitting Diode (OLED). Further, the

22 may be a display having only a display function, or may be a display having a touch function. In one embodiment, the display area of the

22a occupies not less than 90% of the area of the

22a, in other words, the screen ratio of the mobile terminal 100 is greater than or equal to 90%, for example, 95%, 98%. Specifically, the screen ratio is a relative ratio of the screen area to the front panel area of the

20, and is a parameter that is easier to obtain visual perception in the design of the mobile terminal 100.

Referring to fig. 13, the

22 includes a

22a and a

22b disposed opposite to each other, the

22a is a surface of the

22 for displaying an image, the

22a faces the outside of the

20, the

22b does not display an image, and the

22b faces the inside of the

20.

Referring to fig. 11, a

24 is connected to an edge of the

22, and specifically, the

24 is led out from one end of the

22 in the length direction L, and is folded and laminated on the

22 b. A

242 may be provided on the

24, and the

24 may be connected to the

26 so as to control the

22 to display an image. In one embodiment, the

242 is fixed to a side of the

24 facing away from the

22, and pins of the

242 are plugged or soldered to corresponding contacts of the

24.

Referring to fig. 11 and 12, the circuit board is disposed on a side of the

24 facing away from the

22, and the

242 is located entirely or partially in the first through

2420. Specifically, the first through

2420 is a hole penetrating the circuit board, that is, the first through

2420 is a hollowed-out portion on the circuit board. The

242 may entirely or partially pass through the first through

2420, in one embodiment, the thickness of the

242 is greater than the thickness of the circuit board, the

242 entirely passes through the first through

2420, and in another embodiment, the thickness of the

242 is less than the thickness of the circuit board, and the

242 partially passes through the first through

2420. The first through

2420 partially overlaps the circuit board and the

242 in the thickness direction of the

20, thereby reducing the thickness dimension of the

20 and facilitating the light and thin design of the

20.

Referring to fig. 11, 12 and 13, the circuit board includes a

26 and an

28, the

26 is provided with a

262, the

20 includes a

210, the

28, the

210 and the

26 are sequentially arranged along a length direction L of the

22, and the first through

2420 is disposed on the

26. Specifically, the

26 is a circuit board integrated with functional devices, such as a

262, and the

262 is a chip responsible for the operation, processing, and other functions of the

20. The sub-board 28 is a circuit board integrated with a certain functional device, the sub-board 28 is used for assisting the

26, and the

26 is separated from the sub-board 28 so as to separate the functional device of the first

20. The

210 is used to power the functional devices on the

22, the

26, and the sub-board 28.

In this embodiment, the first through

2420 is a hole penetrating the

26, that is, the first through

2420 is a hollowed-out portion of the

26. The

242 may entirely or partially pass through the first through

2420, in one embodiment, the thickness of the

242 is greater than the thickness of the

26, the

242 entirely passes through the first through

2420, and in another embodiment, the thickness of the

242 is less than the thickness of the

26, and the

242 partially passes through the first through

2420. The first through

2420 partially overlaps the

26 and the

242 in the thickness direction of the

20, thereby reducing the thickness dimension of the

20 and facilitating the light and thin design of the

20.

Referring to fig. 12 and 13, in the present embodiment, in the length direction L of the

22, the size of the

26 is larger than the size of the sub-board 28, and the size of the

24 is larger than the size of the sub-board 28, i.e. the size of the

26 and the size of the

24 are both larger than the size of the sub-board 28. The sub-board 28, the

210 and the

26 are arranged in this order in the length direction L of the

22, and the

26 is disposed on one side of the

24 facing away from the

22, in other words, in the length direction L of the

22, the

26 and the

24 with larger dimensions are located on the same side of the

210, and the sub-board 28 with smaller dimensions is located on the other side of the

210. The

26 and the

24 are at least partially overlapped, in the length direction L of the

22, the total space occupied by the

26 and the

24 is the size of the

26 or the

24, the size of the

26 and the size of the

24 are both larger than the size of the

28, the space occupied by the

28 is small, and the total space occupied by the

26, the

24 and the

28 in the length direction L of the

22 is minimized, so that the space for placing the

210 is increased, and the size of the

210 is increased, so that the capacity of the

210 is correspondingly increased, and the standby time of the first

20 is facilitated to be improved.

Referring to fig. 11 and 12, in the present embodiment, the

20 includes a

23, the

23 is located on the

22b side of the

22, and the sub-board 28 and the

23 are located on the same side of the

210 along the length direction L of the

22. Specifically, the

23 is configured to make a sound, and when the user makes a call, one end of the

23 of the first

20 is close to the ear, so as to transmit sound information to the user. In one embodiment, the

23 is made of piezoelectric ceramics to vibrate and sound, and the

22 does not need to be perforated, which is beneficial to improving the screen occupation ratio. In this embodiment, the end of the

23 is the upper end of the

20, the end opposite to the upper end is the lower end, the sub-board 28 is located at the upper end, the

26 is located at the lower end, and the

210 is located between the upper end and the lower end.

Referring to fig. 11, in this embodiment, the

28 is provided with a avoiding

230, and the

23 is located entirely or partially in the avoiding

230. Specifically, the

230 is a hollowed part on the

28, and the

23 passes through the

28 through the

230. The

230 partially overlaps the sub-board 28 and the

23 in the thickness direction of the first

20, thereby reducing the thickness dimension of the first

20 and being beneficial to the light and thin design of the first

20.

Referring to fig. 11, in this embodiment, the

20 includes a

27 and a rear cover 29, the

22 and the rear cover 29 are located on two opposite sides of the

27, and in one embodiment, the

22 and the rear cover 29 are fixedly connected to the

27 by pasting or the like. The rear cover 29 may be made of metal, glass, ceramic, plastic, or the like. The

27 includes a

272 and a

274, the

274 surrounds the edge of the

272, and the

274 forms the appearance of the

20. The

274 may be made of a material having a relatively high hardness and strength, such as a metal or metal alloy, so that the

274 is not easily damaged when the first

20 is dropped. The

272 may also be made of metal or metal alloy, and the

272 is used for supporting the

22 to prevent the

22 with lower strength from being broken, and the

272 is also used for carrying devices inside the first

20. In one embodiment, the

272 and the

274 are fixedly connected by welding, and in other embodiments, the

272 and the

274 may be connected by fasteners or integrally formed.

With continued reference to fig. 11, in the present embodiment, the

26, the sub-board 28, the

210 and the

22 are fixed on the

272, and the

26, the sub-board 28 and the

210 are located on a side of the

272 facing away from the

22. Specifically, the

26 and the

28 are fixed on the

272 by fasteners, the

210 can be adhered on the

272, the

272 separates the

22 from the

26, the

28 and the

210, on one hand, the

272 is used for supporting the

22 and enhancing the strength of the

22, and on the other hand, the

272 is used for bearing the

26, the

28 and the

210.

With continued reference to fig. 11, the

24 is located between the

22 and the

272. Specifically, the

24 is led out from one end of the

22, and is folded and laminated on the

22b of the

22. In this embodiment, the

24 is located at one end of the

22 corresponding to the

26. In one embodiment, the

272 has an opening therein through which the

24 extends partially to one side of the

26 and connects the

26 via a board-to-board connector to connect the

26 to the

22.

With continued reference to fig. 11, the

272 is provided with a mounting groove, and the mounting groove is formed by recessing from a surface of a side of the

272 facing away from the

22, and the

26 is accommodated in the mounting groove. Specifically, the

272 is provided with a

2722, a

2724 and a

2726 which are arranged at intervals, and the

26, the

210 and the

28 are sequentially fixed in the

2722, the

2724 and the

2726. The

26 is fixed in the

2722 by a fastener, the

210 is stuck in the

2724, and the

28 is fixed in the

2726 by a fastener. The

26, the

210 and the

28 are simple and firm in installation mode, convenient to detach and capable of improving production and maintenance efficiency.

Referring to fig. 11 and 12, in the present embodiment, the

272 is provided with a second through

2422 opposite to the

242, and the

242 passes through the

272 through the second through

2422. Specifically, the

242 sequentially passes through the second through

2422 and the first through

2420, wherein the

242 completely passes through the second through

2422 and completely or partially passes through the first through

2420. The second through

2422 is used for avoiding the

242, so that the

242 can pass through the

272 and extend into the first through

2420, and the second through

2422 partially overlaps the

272 and the

242 in the thickness direction of the first

20, so that the thickness dimension of the first

20 is reduced, and the light and thin design of the first

20 is facilitated.

Referring to fig. 14 and 15, fig. 14 is a front view of the mobile terminal 100, and fig. 15 is a schematic partial structure of a section A-A of fig. 14. In this embodiment, the

10 is provided with a first

102, the first

20 can be detachably accommodated in the first

102, the first

102 includes a groove sidewall 102a, the first

20 includes a circumferential surface 102b, and when the first

20 is accommodated in the first

102, the circumferential surface 102b abuts against the groove sidewall 102a. Specifically, the

102 is formed by recessing a surface of the

10 into the

10, and when the first

20 is received in the

102, the first

20 may have the

22a facing the

102c of the

102 or have the back surface facing the

102c of the

102. In one embodiment, the

20 can be partially accommodated in the first

102, and the peripheral surface 102b of the

20 is partially bonded to the groove side wall 102a of the first

102, and in another embodiment, the

20 can be entirely accommodated in the first

102, and the peripheral surface 102b of the

20 is entirely bonded to the groove side wall 102a of the first

102. The first

20 is partially or completely accommodated in the first

102, so that on one hand, the first

20 can be protected, the first

20 is prevented from being knocked, and on the other hand, the thickness of the whole mobile terminal 100 is reduced.

Referring to fig. 15, in the present embodiment, the thickness of the

20 is greater than or equal to 3mm and less than or equal to 4mm; when the

20 is accommodated in the first

102, the maximum thickness of the mobile terminal 100 is greater than or equal to 7mm and less than or equal to 10mm. The overall thickness of the

20 and the mobile terminal 100 is smaller, which is beneficial to the design of light and thin.

In one embodiment, the

10 is provided with a host receiver and a host microphone, and the

20 is provided with a sub-receiver 23 and a sub-microphone. The user can make a call by using the

20 alone, or can make a call by installing the

20 on the

10 together.

Referring to fig. 16 to 18, fig. 16 is an isometric view of a

200 according to a second embodiment of the invention, fig. 17 is a front view of the

200 according to the second embodiment of the invention, and fig. 18 is a schematic view of a part of a structure of a section B-B of fig. 17. The

200 provided in the second embodiment of the present invention is substantially the same as the first embodiment, and is different in that the

200 includes a second sub-machine end 30, a side of the

10 facing away from the

102 is provided with a

104, and the second sub-machine end 30 can be detachably wholly or partially received in the

104.

In this embodiment, the second sub-set 30 may be the same electronic device as the

20, that is, the second sub-set 30 may carry the same electronic device as the

20, for example, the second sub-set 30 may also have the

22, etc., the communication manner between the second sub-set 30 and the

10 may also be the same as the communication manner between the

20 and the

10, and in one embodiment, the

20 and the second sub-set 30 may also communicate with each other.

Referring to fig. 16 and 18, the

20 is detachably mounted on the

10, in other words, the

20 may be mounted on the

10, and the

20 may be separated from the

10. When the

20 is received in the

102 and the second sub-unit 30 is received in the

104, the

20 and the second sub-unit 30 are respectively located at two opposite sides of the

10.

In fig. 18, the

104 is formed by recessing a surface of the

10 into the

10, and when the second sub-unit 30 is received in the

104, the second sub-unit 30 may have the

22a facing the groove bottom wall 104c of the

104 or have the back surface facing the groove bottom wall 104c of the

104. In one embodiment, the second sub-unit 30 can be partially accommodated in the second

104, and the peripheral surface 104b of the second sub-unit 30 is partially bonded to the groove side wall 104a of the second

104, and in another embodiment, the second sub-unit 30 can be entirely accommodated in the second

104, and the peripheral surface 104b of the second sub-unit 30 is entirely bonded to the groove side wall 104a of the second

104. The second sub-machine end 30 is partially or fully accommodated in the second

104, so that on one hand, the second sub-machine end 30 can be protected, the second sub-machine end 30 is prevented from being knocked, and on the other hand, the thickness of the whole

200 is reduced.

Referring to fig. 19, a third embodiment of the present invention provides a mobile terminal 300. The mobile terminal 300 provided in the third embodiment of the present invention may directly communicate with a base station, so as to exchange data. In fact, the mobile terminal 300 provided in the third embodiment of the present invention may be at least partially identical to the structure and function of the mobile terminal 300 provided in the first and second embodiments. Specifically, fig. 20 to 22 are combined, wherein fig. 20 is an exploded view of the mobile terminal 300, that is, a structural explosion view of the mobile terminal 300, fig. 21 is a front view of an internal structure of the mobile terminal 300, and fig. 22 is a stacked view of an internal structure of the mobile terminal 300. In this embodiment, the mobile terminal 300 includes the

22, the

24 located on the

22b side of the

22, the circuit board and the

242, wherein the circuit board is disposed on the side of the

24 facing away from the

22, the

242 is disposed on the

24, the

242 is connected to the

22 through the

24, the circuit board is provided with a first through

2420 facing the

242, and the

242 is located entirely or partially in the first through

2420.

In this embodiment, the

22 may be a liquid crystal display 22 (Thin Film Transistor-Liquid Crystal Display, TFT-LCD) or an Organic Light Emitting Diode (OLED)

22. Further, the

22 may be a

22 having only a display function, or may be a

22 integrated with a touch function. In one embodiment, the display area of the

22a occupies not less than 90% of the area of the

22a, in other words, the screen ratio of the mobile terminal 300 is greater than or equal to 90%, for example, 95%, 98%. Specifically, the screen ratio is a relative ratio for representing the area of the screen and the front panel of the mobile terminal 300, which is a parameter that is easier to obtain visual well-being in the design of the mobile terminal 300.

Referring to fig. 22, the

22 includes a

22a and a

22b disposed opposite to each other, the

22a is a surface of the

22 for displaying an image, the

22a faces the outside of the mobile terminal 300, the

22b does not display an image, and the

22b faces the inside of the mobile terminal 300.

Referring to fig. 20, a

24 is connected to an edge of the

22, and specifically, the

24 is led out from one end of the

22 in the length direction L, and is folded and laminated on the

22 b. A

242 may be provided on the

24, and the

24 may be connected to the

26 so as to control the

22 to display an image. In one embodiment, the

242 is fixed to a side of the

24 facing away from the

22, and pins of the

242 are plugged or soldered to corresponding contacts of the

24.

Referring to fig. 20 and 21, the circuit board is disposed on a side of the

24 facing away from the

22, and the

242 is located entirely or partially in the first through

2420. Specifically, the first through

2420 is a hole penetrating the circuit board, that is, the first through

2420 is a hollowed-out portion on the circuit board. The

242 may entirely or partially pass through the first through

2420, in one embodiment, the thickness of the

242 is greater than the thickness of the circuit board, the

242 entirely passes through the first through

2420, and in another embodiment, the thickness of the

242 is less than the thickness of the circuit board, and the

242 partially passes through the first through

2420. The first through

2420 partially overlaps the circuit board and the

242 in the thickness direction of the mobile terminal 300, reducing the thickness dimension of the mobile terminal 300, and facilitating the slim design of the mobile terminal 300.

Referring to fig. 20, 21 and 22, the circuit board includes a

26 and a sub-board 28, the

26 is provided with a

262, the mobile terminal 300 includes a

210, the sub-board 28, the

210 and the

26 are sequentially arranged along a length direction L of the

22, and the first through

2420 is disposed on the

26. Specifically, the

26 is a circuit board integrated with functional devices, such as a

262, and the

262 is a chip responsible for the operation, processing, and other functions of the mobile terminal 300. The sub-board 28 is a circuit board integrated with certain functional devices, the sub-board 28 is used for assisting the

26, and the

26 is separately disposed from the sub-board 28 to separately dispose the functional devices of the mobile terminal 300. The

210 is used to power the functional devices on the

22, the

26, and the sub-board 28.

In this embodiment, the first through

2420 is a hole penetrating the

26, that is, the first through

2420 is a hollowed-out portion of the

26. The

242 may entirely or partially pass through the first through

2420, in one embodiment, the thickness of the

242 is greater than the thickness of the

26, the

242 entirely passes through the first through

2420, and in another embodiment, the thickness of the

242 is less than the thickness of the

26, and the

242 partially passes through the first through

2420. The first through

2420 partially overlaps the

26 and the

242 in the thickness direction of the mobile terminal 300, reducing the thickness dimension of the mobile terminal 300, and facilitating the slim design of the mobile terminal 300.

Referring to fig. 21 and 22, in the present embodiment, in the length direction L of the

22, the size of the

26 is larger than the size of the sub-board 28, and the size of the

24 is larger than the size of the sub-board 28, i.e. the size of the

26 and the size of the

24 are both larger than the size of the sub-board 28. The sub-board 28, the

210 and the

26 are arranged in this order in the length direction L of the

22, and the

26 is disposed on one side of the

24 facing away from the

22, in other words, in the length direction L of the

22, the

26 and the

24 with larger dimensions are located on the same side of the

210, and the sub-board 28 with smaller dimensions is located on the other side of the

210. The

26 and the

24 are at least partially overlapped, in the length direction L of the

22, the total space occupied by the

26 and the

24 is the size of the

26 or the

24, the size of the

26 and the size of the

24 are both larger than the size of the

28, the space occupied by the

28 is small, and the total space occupied by the

26, the

24 and the

28 in the length direction L of the

22 is minimized, so that the space for placing the

210 is increased, and the size of the

210 is increased, so that the capacity of the

210 is correspondingly increased, and the standby time of the mobile terminal 300 is improved.

Referring to fig. 20 and 21, in the present embodiment, the mobile terminal 300 includes a receiver, the receiver is located on the

22b side of the

22, and the sub-board 28 and the receiver are located on the same side of the

210 in the length direction L of the

22. Specifically, the receiver is used for making a sound, and when the user makes a call, one end of the receiver of the mobile terminal 300 is close to the ear, so as to transmit sound information to the user. In one embodiment, the receiver is a piezoelectric ceramic to vibrate to produce sound, and the

22 does not need to be perforated, which is beneficial to improving the screen duty cycle. In this embodiment, the end where the receiver is located is taken as the upper end of the mobile terminal 300, and the end opposite to the upper end is taken as the lower end, so that the

28 is located at the upper end, the

26 is located at the lower end, and the

210 is located between the upper end and the lower end.

Referring to fig. 20, in this embodiment, the

28 is provided with a

230, and the receiver is located in the

230 entirely or partially. Specifically, the

230 is a hollowed part on the

28, and the receiver passes through the

28 through the

230. The

230 partially overlaps the sub-board 28 and the receiver in the thickness direction of the mobile terminal 300, thereby reducing the thickness dimension of the mobile terminal 300 and facilitating the light and thin design of the mobile terminal 300.

1. The mobile terminal is characterized by comprising a host end and a first sub-machine end which can be detachably arranged at the host end, wherein the first sub-machine end comprises a display screen, a flexible circuit board, a circuit board and a display driving chip, the flexible circuit board, the circuit board and the display driving chip are positioned on one side of a non-display surface of the display screen, the flexible circuit board is arranged on one side of the flexible circuit board, which is away from the display screen, the display driving chip is arranged on the flexible circuit board, the display driving chip is connected to the display screen through the flexible circuit board, the circuit board is provided with a first through hole which is opposite to the display driving chip, and the display driving chip is wholly or partially positioned in the first through hole;

the main machine end is provided with a first accommodating groove, the first sub machine end can be detachably accommodated in the first accommodating groove in whole or in part, the first accommodating groove comprises a groove side wall, the first sub machine end comprises a peripheral surface, when the first sub machine end is accommodated in the first accommodating groove, the peripheral surface abuts against the groove side wall, and a gap is reserved between the first sub machine end and the groove bottom wall;

the circuit board comprises a main board and an auxiliary board, a processor is arranged on the main board, the first sub-machine end comprises a battery, the auxiliary board, the battery and the main board are sequentially arranged in the length direction of the display screen, and the first through hole is formed in the main board;

the first sub-machine end comprises a middle plate, the main plate and the display screen are fixed on the middle plate, and the main plate is positioned at one side of the middle plate away from the display screen;

the middle plate is provided with a second through hole opposite to the display driving chip, and the display driving chip passes through the middle plate through the second through hole.

2. The mobile terminal of claim 1, wherein the size of the main board is larger than the size of the sub board, and the size of the flexible circuit board is larger than the size of the sub board.

3. The mobile terminal according to claim 1, wherein the first sub-phone terminal includes a sub-phone receiver located on a non-display surface side of the display screen, and the sub-board and the sub-phone receiver are located on the same side of the battery in a length direction of the display screen.

4. The mobile terminal of claim 1, wherein the flexible circuit board is located between the display screen and the midplane.

5. The mobile terminal of claim 1, wherein the middle plate is provided with a mounting groove, the mounting groove is formed by recessing from a surface of one side of the middle plate away from the display screen, and the main board is accommodated in the mounting groove.

6. A mobile terminal according to any one of claims 1 to 5, characterized in that,

the host terminal comprises a wireless modem module, a host main controller and a host wireless transceiver module;

the first sub-machine terminal comprises a sub-machine main controller, a sub-machine keyboard, a sub-machine display and a sub-machine wireless transceiver module which can communicate with the main machine wireless transceiver module;

in the working state, the control command output by the sub-machine keyboard is modulated by the sub-machine wireless transceiver module and then sent to the host wireless transceiver module, and under the control of the host main controller, the control command is modulated by the wireless modem module and then sent to the air;

the control signal from the air is modulated by the wireless transceiver module and then sent to the first sub-machine end through the host main controller, and the sub-machine wireless transceiver module receives and then displays the control signal in the sub-machine display screen through the sub-machine main controller.

7. The mobile terminal according to any one of claims 1 to 5, wherein the host side includes a wireless modem module, a host main controller, and a host wireless transceiver module;

the first sub-machine terminal comprises a sub-machine main controller, a sub-machine microphone, a sub-machine receiver, a sub-machine audio encoder, a sub-machine audio decoder and a sub-machine wireless transceiver module capable of communicating with the main machine wireless transceiver module;

in the working state, audio signals from the microphone of the slave machine are transmitted to the master controller of the slave machine after being encoded by the audio encoder of the slave machine, are transmitted by the wireless transceiver module of the slave machine under the control of the master controller of the slave machine, are received by the wireless transceiver module of the host machine, are transmitted to the wireless modem module under the control of the master controller of the host machine, and are transmitted to the air after being modulated by the wireless modem module;

the signal from the air is demodulated by the wireless modulation and demodulation module and then transmitted to the host main controller, the signal is transmitted to the host wireless transceiver module under the control of the host main controller, is modulated by the host wireless transceiver module, is encoded by the host audio codec and then is transmitted to the first sub-computer terminal, and the audio signal demodulated by the sub-computer wireless transceiver module is output by the sub-computer receiver after being decoded by the sub-computer audio decoder under the control of the sub-computer main controller.

8. A mobile terminal according to any one of claims 1 to 5, characterized in that,

the host terminal comprises a wireless modem module, a host main controller and a host wireless transceiver module;

the first sub-machine terminal comprises a sub-machine main controller and a sub-machine wireless transceiver module which can communicate with the host wireless transceiver module;

the first sub-machine side can access a communication network through the host machine side.

9. A mobile terminal according to any one of claims 1 to 5, characterized in that,

the host terminal comprises a first host wireless transceiver module, a host main controller and a second host wireless transceiver module;

the first sub-machine terminal comprises a sub-machine main controller and a first sub-machine wireless transceiver module, and the first sub-machine wireless transceiver module can communicate with the first host wireless transceiver module;

the second host wireless transceiver module is capable of communicating with a base station.

10. The mobile terminal of claim 1, wherein the mobile terminal comprises a second sub-machine end, a second receiving groove is formed in a side, away from the first receiving groove, of the main machine end, and the second sub-machine end can be detachably received in the second receiving groove.

11. The mobile terminal of claim 1, wherein the thickness of the first sub-machine end is 3mm or more and 4mm or less; when the first sub-machine end is accommodated in the first accommodating groove, the maximum thickness of the mobile terminal is more than or equal to 7mm and less than or equal to 10mm.

12. The mobile terminal is characterized by comprising a display screen, a flexible circuit board, a circuit board and a display driving chip, wherein the flexible circuit board, the circuit board and the display driving chip are positioned on one side of the display screen, which is not a display surface of the display screen, the flexible circuit board is arranged on one side of the flexible circuit board, which is far away from the display screen, the display driving chip is arranged on the flexible circuit board, the display driving chip is connected to the display screen through the flexible circuit board, the circuit board is provided with a first through hole which is opposite to the display driving chip, and the display driving chip is wholly or partially positioned in the first through hole;

the circuit board comprises a main board and an auxiliary board, a processor is arranged on the main board, the mobile terminal comprises a battery, the auxiliary board, the battery and the main board are sequentially arranged in the length direction of the display screen, and the first through hole is formed in the main board;

the mobile terminal comprises a middle plate, the main plate and the display screen are fixed on the middle plate, and the main plate is positioned at one side of the middle plate away from the display screen;

the middle plate is provided with a second through hole opposite to the display driving chip, and the display driving chip passes through the middle plate through the second through hole.

13. The mobile terminal of claim 12, wherein the main board has a size greater than the sub-board and the flexible circuit board has a size greater than the sub-board.

14. A mobile terminal according to claim 12, characterized in that the mobile terminal comprises a receiver located on the non-display side of the display screen, the sub-panel and the receiver being located on the same side of the battery in the length direction of the display screen.

15. The mobile terminal according to claim 12, wherein a thickness of the mobile terminal is 3mm or more and 4mm or less.