CN112930672B

CN112930672B - Mobile terminal

Info

Publication number: CN112930672B
Application number: CN201980071286.3A
Authority: CN
Inventors: 黄茂昭
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2018-12-29
Filing date: 2019-05-29
Publication date: 2023-07-04
Anticipated expiration: 2039-05-29
Also published as: CN112930672A; WO2020133905A1

Abstract

The application discloses mobile terminal, including the host computer end and can demountable installation in the first sub-machine end of host computer end, first sub-machine end includes the display screen and is located flexible circuit board, circuit board and the demonstration drive chip of the non-display surface one side of display screen, the circuit board set up in flexible circuit board deviates from one side of display screen, the demonstration drive chip set up in on the flexible circuit board, the demonstration drive chip warp flexible circuit board is connected to the display screen, the circuit board is equipped with just to the first through-hole of demonstration drive chip, the demonstration drive chip wholly is located or partly is located in the first through-hole. The display driving chip passes through the first through hole, and the display driving chip and the circuit board are not overlapped in the thickness direction of the first sub-machine end, so that the thickness of the first sub-machine end is reduced, and the user experience is improved.

Description

Mobile terminal

Technical Field

The application relates to the technical field of mobile terminals.

Background

With the development of communication technology, mobile terminals such as smart phones are becoming more popular. Along with the increasing functions of the mobile terminal, the number of functional devices installed inside the mobile terminal is increased, so that the size of the mobile terminal is increased, and the light and thin development of the mobile terminal is not facilitated.

Content of the application

The application provides a mobile terminal, on the one hand, mobile terminal include the host computer end and can demountable installation in the first sub-machine end of host computer end, first sub-machine end includes the display screen and is located flexible circuit board, circuit board and the demonstration drive chip of the non-display surface one side of display screen, the circuit board set up in flexible circuit board deviates from one side of display screen, the demonstration drive chip set up in on the flexible circuit board, the demonstration drive chip warp flexible circuit board is connected to the display screen, the circuit board is equipped with just to the first through-hole of demonstration drive chip, the demonstration drive chip all is located or part is located in the first through-hole.

On the other hand, the mobile terminal comprises 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 arranged on one side of the display screen, which is not the display surface, 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 arranged in the first through hole.

The beneficial effects of this application are as follows: the display driving chip passes through the first through hole, and the display driving chip and the circuit board are not overlapped in the thickness direction of the first sub-machine end, so that the thickness of the first sub-machine end is reduced, and the user experience is improved.

Drawings

In order to more clearly illustrate the technical solutions of the present application, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained by those skilled in the art without the inventive effort.

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other obvious modifications may be obtained according to these drawings without inventive effort to a person skilled in the art.

Fig. 1 is a schematic diagram of a mobile terminal in a first use state according to an embodiment of the present application.

Fig. 2 is a schematic diagram of a mobile terminal in a second use state according to an embodiment of the present application.

Fig. 3 is a schematic diagram of a mobile terminal in a third use state according to an embodiment of the present application.

Fig. 4 is a schematic diagram of an apparatus of a mobile terminal.

Fig. 5 and 6 are schematic diagrams of a first mode of operation.

Fig. 7 and 8 are schematic diagrams of the second mode of operation.

Fig. 9 is a schematic diagram of a third mode of operation.

Fig. 10 is a schematic diagram of a fourth mode of operation.

Fig. 11 is an exploded view of the first sub-unit.

Fig. 12 is a front view of the internal structure of the first sub-unit.

Fig. 13 is a schematic lamination diagram of the internal structure of the first sub-unit.

Fig. 14 is a front view of the mobile terminal.

Fig. 15 is a schematic view of a part of the structure of the section A-A of fig. 14.

Fig. 16 is an isometric view of a mobile terminal according to a second embodiment of the present invention.

Fig. 17 is a front view of a mobile terminal according to a second embodiment of the present invention.

Fig. 18 is a partial schematic structural view of the section B-B of fig. 17.

Fig. 19 is an isometric view of a mobile terminal according to a third embodiment of the present invention.

Fig. 20 is an exploded view of the mobile terminal.

Fig. 21 is a front view of an internal structure of the mobile terminal.

Fig. 22 is a schematic diagram of stacking internal structures of a mobile terminal.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

Referring to fig. 1 to 3 together, the mobile terminal 100 provided in the first embodiment of the present invention includes a host 10 and a first sub-unit 20, wherein the first sub-unit 20 is detachably mounted on the host 10, in other words, the first sub-unit 20 may be mounted on the host 10, and the first sub-unit 20 may be separated from the host 10.

Fig. 1 is a schematic diagram of a mobile terminal 100 according to an embodiment of the present application in a first use state; fig. 2 is a schematic diagram of the mobile terminal 100 in a second use state according to the first embodiment of the present application; fig. 3 is a schematic diagram of the mobile terminal 100 in a third use state according to the first embodiment of the present application.

Referring to fig. 1, in a first usage state, a first sub-set 20 may be stacked on a host 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 first sub-machine 20 is insufficient, the first sub-machine 20 is stacked on the host machine 10 for charging; when photographing is required, the first sub-camera end 20 is laminated on the host end 10, the camera module on the host end 10 shoots an image, and the first sub-camera end 20 displays the image captured by the camera module.

Referring to fig. 2, in the second usage state, the first sub-unit 20 and the host unit 10 are separated from each other, i.e. the first sub-unit 20 can be separated from the host unit 10 for separate use. The first child camera 20 may display an image. The first sub-set 20 and the host 10 can communicate wirelessly, so that the first sub-set 20 and the host 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 host end 10 in a backpack, holds the first sub-set of small-sized host end 20 to make a call, video chat, play a game, watch a video, etc.

Referring to fig. 3, in the third use state, the first sub-unit 20 stands on the side of the main unit 10 and is supported by the main unit 10 to stand on the side. Under the support of the host end 10, the first sub-machine end 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 first sub-device 20 and the main device 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 host end 10 and fixing the first sub-machine end 20 on the side, and playing the video to the user.

Referring to fig. 4, fig. 4 is a schematic diagram of a device of the mobile terminal 100, where the first sub-machine side and the host side can communicate, and specific working manners of the host side and the first sub-machine side include, but are not limited to, the following:

mode of operation one

Referring to fig. 5 and 6, the host includes a wireless modem module, a host main controller, and a host wireless transceiver module, and the first sub-host includes a sub-host keyboard, a sub-host display, and a sub-host wireless transceiver module capable of communicating with the host 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 terminal through the host main controller, and the sub-machine wireless transceiver module receives the control signal and then displays the control signal in the sub-machine display screen through the sub-machine main controller.

Working mode II

Referring to fig. 7 and 8, the host side includes a wireless modem module, a host main controller, and a host wireless transceiver module, and the first sub-host side includes a sub-host main controller, a sub-host microphone, a sub-host receiver, a sub-host audio encoder, a sub-host audio decoder, and a sub-host wireless transceiver module capable of communicating with the host 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 out 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, are modulated by the wireless modem module and are transmitted to the air;

the signal from the air is demodulated by the wireless modem module and then transmitted to the host main controller, and is transmitted to the host wireless transceiver module under the control of the host main controller, modulated by the host wireless transceiver module, encoded by the host audio codec and then transmitted to the first sub-machine end, and the audio signal demodulated by the sub-machine wireless transceiver module is decoded by the sub-machine audio decoder under the control of the sub-machine main controller and then output by the sub-machine receiver.

The sub-machine audio encoder can be a single hardware unit, can be integrated in a microphone, can be integrated in a main sub-machine controller, and can be an audio codec with an audio decoding function;

the sub-machine audio decoder can be a separate hardware unit, can be integrated in a receiver, can be integrated in a main sub-machine controller, and can be an audio codec with an audio coding function.

Working mode III

Referring to fig. 9, the host includes a wireless modem module, a host main controller, and a host wireless transceiver module, the first sub-host includes a sub-host main controller, and a sub-host wireless transceiver module capable of communicating with the host wireless transceiver module, and the first sub-host can access a communication network through the host.

Working mode IV

Referring to fig. 10, the host includes a first host wireless transceiver module, a host main controller, and a second host wireless transceiver module, the first sub-host includes a sub-host main controller and a first sub-host wireless transceiver module, the first sub-host wireless transceiver module is capable of communicating with the first host wireless transceiver module, and the second host wireless transceiver module is capable of communicating with the base station.

Referring to fig. 11, 12 and 13, fig. 11 is an exploded view of the first sub-unit 20, i.e. an exploded view of the first sub-unit 20, fig. 12 is a front view of the internal structure of the first sub-unit 20, and fig. 13 is a stacked view of the internal structure of the first sub-unit 20. In this embodiment, the first sub-unit 20 includes a display 22, a flexible circuit board 24 disposed on a side of the display 22 other than the display 22b, a circuit board and a display driving chip 242, wherein the circuit board is disposed on a side of the flexible circuit board 24 facing away from the display 22, the display driving chip 242 is disposed on the flexible circuit board 24, the display driving chip 242 is connected to the display 22 through the flexible circuit board 24, the circuit board is provided with a first through hole 2420 facing the display driving chip 242, and the display driving chip 242 is located entirely or partially in the first through hole 2420.

In this embodiment, the display 22 may be a liquid crystal display (Thin Film Transistor-Liquid Crystal Display, TFT-LCD) or an Organic Light Emitting Diode (OLED). Further, the display 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 display surface 22a occupies not less than 90% of the area of the display surface 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 first sub-unit 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 display 22 includes a display surface 22a and a non-display surface 22b disposed opposite to each other, the display surface 22a is a surface of the display 22 for displaying an image, the display surface 22a faces the outside of the first sub-unit 20, the non-display surface 22b does not display an image, and the non-display surface 22b faces the inside of the first sub-unit 20.

Referring to fig. 11, a flexible circuit board 24 is connected to an edge of the display 22, and specifically, the flexible circuit board 24 is led out from one end of the display 22 in the length direction L, and is folded and laminated on the non-display surface 22 b. A display driving chip 242 may be provided on the flexible circuit board 24, and the flexible circuit board 24 may be connected to the main board 26 so as to control the display screen 22 to display an image. In one embodiment, the display driver chip 242 is fixed to a side of the flexible circuit board 24 facing away from the display screen 22, and pins of the display driver chip 242 are plugged or soldered to corresponding contacts of the flexible circuit board 24.

Referring to fig. 11 and 12, the circuit board is disposed on a side of the flexible circuit board 24 facing away from the display 22, and the display driving chip 242 is located entirely or partially in the first through hole 2420. Specifically, the first through hole 2420 is a hole penetrating the circuit board, that is, the first through hole 2420 is a hollowed-out portion on the circuit board. The display driving chip 242 may entirely or partially pass through the first through hole 2420, in one embodiment, the thickness of the display driving chip 242 is greater than the thickness of the circuit board, the display driving chip 242 entirely passes through the first through hole 2420, and in another embodiment, the thickness of the display driving chip 242 is less than the thickness of the circuit board, and the display driving chip 242 partially passes through the first through hole 2420. The first through hole 2420 partially overlaps the circuit board and the display driving chip 242 in the thickness direction of the first sub-unit 20, thereby reducing the thickness dimension of the first sub-unit 20 and facilitating the light and thin design of the first sub-unit 20.

Referring to fig. 11, 12 and 13, the circuit board includes a main board 26 and an auxiliary board 28, the main board 26 is provided with a processor 262, the first sub-unit 20 includes a battery 210, the auxiliary board 28, the battery 210 and the main board 26 are sequentially arranged along a length direction L of the display 22, and the first through hole 2420 is disposed on the main board 26. Specifically, the motherboard 26 is a circuit board integrated with functional devices, such as a processor 262, and the processor 262 is a chip responsible for the operation, processing, and other functions of the first sub-unit 20. The sub-board 28 is a circuit board integrated with a certain functional device, the sub-board 28 is used for assisting the main board 26, and the main board 26 is separated from the sub-board 28 so as to separate the functional device of the first sub-machine end 20. The battery 210 is used to power the functional devices on the display 22, the main board 26, and the sub-board 28.

In this embodiment, the first through hole 2420 is a hole penetrating the motherboard 26, that is, the first through hole 2420 is a hollowed-out portion of the motherboard 26. The display driver chip 242 may entirely or partially pass through the first through hole 2420, in one embodiment, the thickness of the display driver chip 242 is greater than the thickness of the main board 26, the display driver chip 242 entirely passes through the first through hole 2420, and in another embodiment, the thickness of the display driver chip 242 is less than the thickness of the main board 26, and the display driver chip 242 partially passes through the first through hole 2420. The first through hole 2420 partially overlaps the main board 26 and the display driving chip 242 in the thickness direction of the first sub-unit 20, thereby reducing the thickness dimension of the first sub-unit 20 and facilitating the light and thin design of the first sub-unit 20.

Referring to fig. 12 and 13, in the present embodiment, in the length direction L of the display screen 22, the size of the main board 26 is larger than the size of the sub-board 28, and the size of the flexible circuit board 24 is larger than the size of the sub-board 28, i.e. the size of the main board 26 and the size of the flexible circuit board 24 are both larger than the size of the sub-board 28. The sub-board 28, the battery 210 and the main board 26 are arranged in this order in the length direction L of the display 22, and the main board 26 is disposed on one side of the flexible circuit board 24 facing away from the display 22, in other words, in the length direction L of the display 22, the main board 26 and the flexible circuit board 24 with larger dimensions are located on the same side of the battery 210, and the sub-board 28 with smaller dimensions is located on the other side of the battery 210. The main board 26 and the flexible circuit board 24 are at least partially overlapped, in the length direction L of the display screen 22, the total space occupied by the main board 26 and the flexible circuit board 24 is the size of the main board 26 or the flexible circuit board 24, the size of the main board 26 and the size of the flexible circuit board 24 are both larger than the size of the auxiliary board 28, the space occupied by the auxiliary board 28 is small, and the total space occupied by the main board 26, the flexible circuit board 24 and the auxiliary board 28 in the length direction L of the display screen 22 is minimized, so that the space for placing the battery 210 is increased, and the size of the battery 210 is increased, so that the capacity of the battery 210 is correspondingly increased, and the standby time of the first sub-machine end 20 is facilitated to be improved.

Referring to fig. 11 and 12, in the present embodiment, the first sub-phone 20 includes a sub-phone receiver 23, the sub-phone receiver 23 is located on the non-display surface 22b side of the display 22, and the sub-board 28 and the sub-phone receiver 23 are located on the same side of the battery 210 along the length direction L of the display 22. Specifically, the sub-phone receiver 23 is configured to make a sound, and when the user makes a call, one end of the sub-phone receiver 23 of the first sub-phone terminal 20 is close to the ear, so as to transmit sound information to the user. In one embodiment, the headset 23 is made of piezoelectric ceramics to vibrate and sound, and the display screen 22 does not need to be perforated, which is beneficial to improving the screen occupation ratio. In this embodiment, the end of the handset 23 is the upper end of the first handset 20, the end opposite to the upper end is the lower end, the sub-board 28 is located at the upper end, the main board 26 is located at the lower end, and the battery 210 is located between the upper end and the lower end.

Referring to fig. 11, in this embodiment, the auxiliary board 28 is provided with a avoiding hole 230, and the headset 23 is located entirely or partially in the avoiding hole 230. Specifically, the avoidance hole 230 is a hollowed part on the auxiliary board 28, and the sub-telephone receiver 23 passes through the auxiliary board 28 through the avoidance hole 230. The avoidance hole 230 partially overlaps the sub-board 28 and the sub-telephone receiver 23 in the thickness direction of the first sub-telephone end 20, thereby reducing the thickness dimension of the first sub-telephone end 20 and being beneficial to the light and thin design of the first sub-telephone end 20.

Referring to fig. 11, in this embodiment, the first sub-unit 20 includes a middle frame 27 and a rear cover 29, the display 22 and the rear cover 29 are located on two opposite sides of the middle frame 27, and in one embodiment, the display 22 and the rear cover 29 are fixedly connected to the middle frame 27 by pasting or the like. The rear cover 29 may be made of metal, glass, ceramic, plastic, or the like. The middle frame 27 includes a middle plate 272 and a frame 274, the frame 274 surrounds the edge of the middle plate 272, and the frame 274 forms the appearance of the first sub-unit 20. The frame 274 may be made of a material having a relatively high hardness and strength, such as a metal or metal alloy, so that the frame 274 is not easily damaged when the first sub-machine end 20 is dropped. The middle plate 272 may also be made of metal or metal alloy, and the middle plate 272 is used for supporting the display 22 to prevent the display 22 with lower strength from being broken, and the middle plate 272 is also used for carrying devices inside the first sub-machine end 20. In one embodiment, the middle plate 272 and the frame 274 are fixedly connected by welding, and in other embodiments, the middle plate 272 and the frame 274 may be connected by fasteners or integrally formed.

With continued reference to fig. 11, in the present embodiment, the main board 26, the sub-board 28, the battery 210 and the display 22 are fixed on the middle board 272, and the main board 26, the sub-board 28 and the battery 210 are located on a side of the middle board 272 facing away from the display 22. Specifically, the main board 26 and the auxiliary board 28 are fixed on the middle board 272 by fasteners, the battery 210 can be adhered on the middle board 272, the middle board 272 separates the display screen 22 from the main board 26, the auxiliary board 28 and the battery 210, on one hand, the middle board 272 is used for supporting the display screen 22 and enhancing the strength of the display screen 22, and on the other hand, the middle board 272 is used for bearing the main board 26, the auxiliary board 28 and the battery 210.

With continued reference to fig. 11, the flexible circuit board 24 is located between the display 22 and the middle board 272. Specifically, the flexible circuit board 24 is led out from one end of the display screen 22, and is folded and laminated on the non-display surface 22b of the display screen 22. In this embodiment, the flexible circuit board 24 is located at one end of the display 22 corresponding to the motherboard 26. In one embodiment, the middle plate 272 has an opening therein through which the flexible circuit board 24 extends partially to one side of the motherboard 26 and connects the motherboard 26 via a board-to-board connector to connect the motherboard 26 to the display 22.

With continued reference to fig. 11, the middle plate 272 is provided with a mounting groove, and the mounting groove is formed by recessing from a surface of a side of the middle plate 272 facing away from the display 22, and the motherboard 26 is accommodated in the mounting groove. Specifically, the middle plate 272 is provided with a first mounting groove 2722, a second mounting groove 2724 and a third mounting groove 2726 which are arranged at intervals, and the main plate 26, the battery 210 and the auxiliary plate 28 are sequentially fixed in the first mounting groove 2722, the second mounting groove 2724 and the third mounting groove 2726. The main plate 26 is fixed in the first mounting groove 2722 by a fastener, the battery 210 is stuck in the second mounting groove 2724, and the sub plate 28 is fixed in the third mounting groove 2726 by a fastener. The main board 26, the battery 210 and the auxiliary board 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 middle plate 272 is provided with a second through hole 2422 opposite to the display driving chip 242, and the display driving chip 242 passes through the middle plate 272 through the second through hole 2422. Specifically, the display driving chip 242 sequentially passes through the second through hole 2422 and the first through hole 2420, wherein the display driving chip 242 completely passes through the second through hole 2422 and completely or partially passes through the first through hole 2420. The second through hole 2422 is used for avoiding the display driving chip 242, so that the display driving chip 242 can pass through the middle plate 272 and extend into the first through hole 2420, and the second through hole 2422 partially overlaps the middle plate 272 and the display driving chip 242 in the thickness direction of the first sub-machine end 20, so that the thickness dimension of the first sub-machine end 20 is reduced, and the light and thin design of the first sub-machine end 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 main unit end 10 is provided with a first accommodating groove 102, the first sub-unit end 20 can be detachably accommodated in the first accommodating groove 102, the first accommodating groove 102 includes a groove sidewall 102a, the first sub-unit end 20 includes a circumferential surface 102b, and when the first sub-unit end 20 is accommodated in the first accommodating groove 102, the circumferential surface 102b abuts against the groove sidewall 102a. Specifically, the first receiving groove 102 is formed by recessing a surface of the host end 10 into the host end 10, and when the first sub-machine end 20 is received in the first receiving groove 102, the first sub-machine end 20 may have the display surface 22a facing the groove bottom wall 102c of the first receiving groove 102 or have the back surface facing the groove bottom wall 102c of the first receiving groove 102. In one embodiment, the first sub-unit 20 can be partially accommodated in the first accommodating groove 102, and the peripheral surface 102b of the first sub-unit 20 is partially bonded to the groove side wall 102a of the first accommodating groove 102, and in another embodiment, the first sub-unit 20 can be entirely accommodated in the first accommodating groove 102, and the peripheral surface 102b of the first sub-unit 20 is entirely bonded to the groove side wall 102a of the first accommodating groove 102. The first sub-machine end 20 is partially or completely accommodated in the first accommodating groove 102, so that on one hand, the first sub-machine end 20 can be protected, the first sub-machine end 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 first sub-unit 20 is greater than or equal to 3mm and less than or equal to 4mm; when the first sub-set 20 is accommodated in the first accommodating groove 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 first sub-set 20 and the mobile terminal 100 is smaller, which is beneficial to the design of light and thin.

In one embodiment, the host end 10 is provided with a host receiver and a host microphone, and the first sub-end 20 is provided with a sub-receiver 23 and a sub-microphone. The user can make a call by using the first sub-set terminal 20 alone, or can make a call by installing the first sub-set terminal 20 on the host terminal 10 together.

Referring to fig. 16 to 18, fig. 16 is an isometric view of a mobile terminal 200 according to a second embodiment of the invention, fig. 17 is a front view of the mobile terminal 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 mobile terminal 200 provided in the second embodiment of the present invention is substantially the same as the first embodiment, and is different in that the mobile terminal 200 includes a second sub-machine end 30, a side of the host machine end 10 facing away from the first receiving groove 102 is provided with a second receiving groove 104, and the second sub-machine end 30 can be detachably wholly or partially received in the second receiving groove 104.

In this embodiment, the second sub-set 30 may be the same electronic device as the first sub-set 20, that is, the second sub-set 30 may carry the same electronic device as the first sub-set 20, for example, the second sub-set 30 may also have the display 22, etc., the communication manner between the second sub-set 30 and the host 10 may also be the same as the communication manner between the first sub-set 20 and the host 10, and in one embodiment, the first sub-set 20 and the second sub-set 30 may also communicate with each other.

Referring to fig. 16 and 18, the first sub-unit 20 is detachably mounted on the host unit 10, in other words, the first sub-unit 20 may be mounted on the host unit 10, and the first sub-unit 20 may be separated from the host unit 10. When the first sub-unit 20 is received in the first receiving groove 102 and the second sub-unit 30 is received in the second receiving groove 104, the first sub-unit 20 and the second sub-unit 30 are respectively located at two opposite sides of the main unit 10.

In fig. 18, the second receiving groove 104 is formed by recessing a surface of the main unit 10 into the main unit 10, and when the second sub-unit 30 is received in the second receiving groove 104, the second sub-unit 30 may have the display surface 22a facing the groove bottom wall 104c of the second receiving groove 104 or have the back surface facing the groove bottom wall 104c of the second receiving groove 104. In one embodiment, the second sub-unit 30 can be partially accommodated in the second accommodating groove 104, and the peripheral surface 104b of the second sub-unit 30 is partially bonded to the groove side wall 104a of the second accommodating groove 104, and in another embodiment, the second sub-unit 30 can be entirely accommodated in the second accommodating groove 104, and the peripheral surface 104b of the second sub-unit 30 is entirely bonded to the groove side wall 104a of the second accommodating groove 104. The second sub-machine end 30 is partially or fully accommodated in the second accommodating groove 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 mobile terminal 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 display 22, the flexible circuit board 24 located on the non-display surface 22b side of the display 22, the circuit board and the display driving chip 242, wherein the circuit board is disposed on the side of the flexible circuit board 24 facing away from the display 22, the display driving chip 242 is disposed on the flexible circuit board 24, the display driving chip 242 is connected to the display 22 through the flexible circuit board 24, the circuit board is provided with a first through hole 2420 facing the display driving chip 242, and the display driving chip 242 is located entirely or partially in the first through hole 2420.

In this embodiment, the display 22 may be a liquid crystal display 22 (Thin Film Transistor-Liquid Crystal Display, TFT-LCD) or an Organic Light Emitting Diode (OLED) display 22. Further, the display 22 may be a display 22 having only a display function, or may be a display 22 integrated with a touch function. In one embodiment, the display area of the display surface 22a occupies not less than 90% of the area of the display surface 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 display 22 includes a display surface 22a and a non-display surface 22b disposed opposite to each other, the display surface 22a is a surface of the display 22 for displaying an image, the display surface 22a faces the outside of the mobile terminal 300, the non-display surface 22b does not display an image, and the non-display surface 22b faces the inside of the mobile terminal 300.

Referring to fig. 20, a flexible circuit board 24 is connected to an edge of the display 22, and specifically, the flexible circuit board 24 is led out from one end of the display 22 in the length direction L, and is folded and laminated on the non-display surface 22 b. A display driving chip 242 may be provided on the flexible circuit board 24, and the flexible circuit board 24 may be connected to the main board 26 so as to control the display screen 22 to display an image. In one embodiment, the display driver chip 242 is fixed to a side of the flexible circuit board 24 facing away from the display screen 22, and pins of the display driver chip 242 are plugged or soldered to corresponding contacts of the flexible circuit board 24.

Referring to fig. 20 and 21, the circuit board is disposed on a side of the flexible circuit board 24 facing away from the display 22, and the display driving chip 242 is located entirely or partially in the first through hole 2420. Specifically, the first through hole 2420 is a hole penetrating the circuit board, that is, the first through hole 2420 is a hollowed-out portion on the circuit board. The display driving chip 242 may entirely or partially pass through the first through hole 2420, in one embodiment, the thickness of the display driving chip 242 is greater than the thickness of the circuit board, the display driving chip 242 entirely passes through the first through hole 2420, and in another embodiment, the thickness of the display driving chip 242 is less than the thickness of the circuit board, and the display driving chip 242 partially passes through the first through hole 2420. The first through hole 2420 partially overlaps the circuit board and the display driving chip 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 main board 26 and a sub-board 28, the main board 26 is provided with a processor 262, the mobile terminal 300 includes a battery 210, the sub-board 28, the battery 210 and the main board 26 are sequentially arranged along a length direction L of the display 22, and the first through hole 2420 is disposed on the main board 26. Specifically, the motherboard 26 is a circuit board integrated with functional devices, such as a processor 262, and the processor 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 main board 26, and the main board 26 is separately disposed from the sub-board 28 to separately dispose the functional devices of the mobile terminal 300. The battery 210 is used to power the functional devices on the display 22, the main board 26, and the sub-board 28.

In this embodiment, the first through hole 2420 is a hole penetrating the motherboard 26, that is, the first through hole 2420 is a hollowed-out portion of the motherboard 26. The display driver chip 242 may entirely or partially pass through the first through hole 2420, in one embodiment, the thickness of the display driver chip 242 is greater than the thickness of the main board 26, the display driver chip 242 entirely passes through the first through hole 2420, and in another embodiment, the thickness of the display driver chip 242 is less than the thickness of the main board 26, and the display driver chip 242 partially passes through the first through hole 2420. The first through hole 2420 partially overlaps the main board 26 and the display driving chip 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 display screen 22, the size of the main board 26 is larger than the size of the sub-board 28, and the size of the flexible circuit board 24 is larger than the size of the sub-board 28, i.e. the size of the main board 26 and the size of the flexible circuit board 24 are both larger than the size of the sub-board 28. The sub-board 28, the battery 210 and the main board 26 are arranged in this order in the length direction L of the display 22, and the main board 26 is disposed on one side of the flexible circuit board 24 facing away from the display 22, in other words, in the length direction L of the display 22, the main board 26 and the flexible circuit board 24 with larger dimensions are located on the same side of the battery 210, and the sub-board 28 with smaller dimensions is located on the other side of the battery 210. The main board 26 and the flexible circuit board 24 are at least partially overlapped, in the length direction L of the display screen 22, the total space occupied by the main board 26 and the flexible circuit board 24 is the size of the main board 26 or the flexible circuit board 24, the size of the main board 26 and the size of the flexible circuit board 24 are both larger than the size of the auxiliary board 28, the space occupied by the auxiliary board 28 is small, and the total space occupied by the main board 26, the flexible circuit board 24 and the auxiliary board 28 in the length direction L of the display screen 22 is minimized, so that the space for placing the battery 210 is increased, and the size of the battery 210 is increased, so that the capacity of the battery 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 non-display surface 22b side of the display 22, and the sub-board 28 and the receiver are located on the same side of the battery 210 in the length direction L of the display 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 display screen 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 auxiliary board 28 is located at the upper end, the main board 26 is located at the lower end, and the battery 210 is located between the upper end and the lower end.

Referring to fig. 20, in this embodiment, the auxiliary plate 28 is provided with a avoidance hole 230, and the receiver is located in the avoidance hole 230 entirely or partially. Specifically, the avoidance hole 230 is a hollowed part on the auxiliary board 28, and the receiver passes through the auxiliary board 28 through the avoidance hole 230. The avoidance hole 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.

In this embodiment, the thickness of the mobile terminal 300 is 3mm or more and 4mm or less. The mobile terminal 300 and the overall thickness of the mobile terminal 300 are small, which is beneficial to the design of light and thin.

The foregoing disclosure is only illustrative of the preferred embodiments of the present application and is not intended to limit the scope of the claims hereof, as it is to be understood by those skilled in the art that all or part of the procedures for practicing the embodiments described herein may be practiced otherwise than as specifically described and illustrated by the claims herein.

Claims

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;

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 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;

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.