TW201351267A - Multi-part apparatus and frame display method thereof - Google Patents

Abstract

A multi-part apparatus and a frame display method thereof are provided. The method is adapted to the multi-part apparatus having separated master apparatus and slave apparatus. The master apparatus and the slave apparatus are attached with each other through magnetism and have corresponding wireless transmission modules and pins disposed on a side of the apparatus. In the method, a variation of the magnetism is detected, so as to determine a relative position between the master apparatus and the slave apparatus. When the master apparatus and the slave apparatus leave an overlapped state, the wireless transmission modules are used to establish a wireless connection and corresponding applications on the master apparatus and the slave apparatus are synchronized through the wireless connection. Then, according to the relative position between the master apparatus and the slave apparatus, operating frames of the applications are respectively displayed on the touch screen of the master apparatus and the slave apparatus.

Description

Composite device and screen display method thereof

The present invention relates to an electronic device and a screen display method thereof, and more particularly to a composite device magnetically connected and a screen display method thereof.

Today's consumer demands for the appearance of mobile devices tend to be light, thin, short, and small, and this requirement makes the size of the mobile device quite limited. For devices such as mobile phones or tablets, if you want to configure the screen and keyboard on the device at the same time, it is necessary to reduce the size of the screen. In order to be able to configure a larger screen in a limited space, a touch screen has recently been developed which can simultaneously serve as a display and input interface for a mobile device, thereby eliminating the cost and area occupied by a conventional keyboard.

In order to meet the operational requirements of different applications, the mobile device displays the corresponding operation interface on the touch screen according to the needs of each application, so that the user can operate the application by touch. For example, when the user opens the file editing program, the mobile device displays a virtual keyboard on the touch screen for the user to input text; when the user opens the multimedia player, the mobile device is on the touch screen. Control buttons such as play, pause, stop, fast forward, and swivel are displayed on the display for the user to operate the multimedia play function.

However, the keyboard, control buttons and the like displayed on the touch screen still occupy a small screen display space, thereby squeezing to other content, so that It is difficult for users to read. In addition, when the user answers the call using the mobile device, the mobile device can no longer operate the mobile device because the mobile device is turned off to prevent the user from accidentally touching the touch screen.

Therefore, it is necessary to develop a mobile device that can provide a larger screen display space and use flexibility to respond to various usage environments.

In view of the above, the present invention proposes a composite device and a screen display method thereof, which magnetically connect two devices and determine the position of the device according to the magnetic change, thereby changing the screen displayed on the two devices.

The invention provides a screen display method for a composite device, which is suitable for a composite device having a detachable main device and a slave device. The master device and the slave device are magnetically adsorbed to each other and have wireless transmission modules and configurations corresponding to each other. Multiple pins on the side. This method detects the change in the above magnetic properties to determine the relative position between the master device and the slave device. When it is determined that the master device and the slave device are separated from each other, the corresponding application on the master device and the slave device is synchronized by the wireless connection established by the wireless transmission module. Then, according to the relative position between the master device and the slave device, the operation screen of the application is individually displayed on the touch screen of the master device and the slave device.

The present invention provides a composite device that includes a master device and a slave device. The main device includes a first touch screen disposed on the front side, a first wireless transmission module, a plurality of first pins disposed on the side, a plurality of first magnetic objects disposed on the back surface, and the first coupling Touch screen, first wireless transmission The first controller of the transmission module and the first pin. The slave device includes a second touch screen disposed on the front side, a second wireless transmission module configured to establish a wireless connection with the first wireless transmission module, and a first pin disposed on the side for correspondingly connecting the main device. a plurality of second pins, a plurality of second magnetic objects disposed on the front surface, and a second controller coupled to the second touch screen, the second wireless transmission module, and the second pins. Wherein, the second magnetic object is disposed at a position corresponding to the first magnetic object of the main device on the front side of the device, so as to be magnetically attracted to the first magnetic object, so that the main device and the slave device can overlap or be displaced from each other. The way to adsorb. In addition, when the master device and the slave device are separated from each other, the first wireless transmission module and the second wireless transmission module are used to establish a wireless connection, and the wireless device is used to synchronize the master device and the corresponding device. The application and the operation screen of the application are individually displayed on the touch screen of the master device and the slave device according to the relative position between the master device and the slave device.

Based on the above, the composite device of the present invention and its screen display method utilize magnetic connection of two devices, and determine the relative position between the two based on the magnetic change. When it is judged that the two are separated by the state overlapping each other, the slave device wakes up the slave device and synchronously activates the corresponding application on the slave device to display different screens of the same application on both devices. This provides greater screen display space and flexibility.

The above described features and advantages of the present invention will be more apparent from the following description.

In order to increase the display space of the device screen without changing the volume of the device, the present invention magnetically adsorbs two thin devices of similar size into a composite device, and judges the overlap of the two devices according to the magnetic change. Status such as misalignment, side connection, and separation, thereby changing the content of the screen displayed by the two devices and the data transmission mode between the two devices. Thereby, the present invention can provide the user with the freedom to adjust the position of the device according to his needs, to obtain a larger screen display space or a more convenient operation interface configuration.

1A-1E are schematic views of a composite device according to an embodiment of the invention. Referring to FIG. 1A to FIG. 1E , the composite device 10 of the present embodiment includes a main device 11 and a slave device 12 , which are connected by magnetic adsorption, and can realize the overlapping manner as illustrated in FIG. 1A and FIG. 1B . The dislocation pattern as illustrated in FIG. 1C, the side connection pattern as illustrated in FIG. 1D, and the separation pattern as illustrated in FIG. 1E. As shown in FIG. 1A, the side of the main device 11 can be configured with a pin 111 for connecting and transmitting data to and from the device 12; the camera 121 and the flash lamp 122 can be disposed on the back of the device 12, and the volume adjustment button can be configured on the side. 123. The bottom surface can be configured with a port 124 for charging or transmitting data. As shown in FIG. 1B, the top surface of the device 12 can be configured with a power key 125 and an earphone hole 126, and the other side can be configured with a pin 127 for connecting to the pin 111 of the main device 11 and transmitting data.

As shown in FIG. 1C and FIG. 1D, the front side of the main device 11 and the slave device 12 are respectively provided with touch screens 112 and 128. The screens displayed on the touch screens 112 and 128 are based on the main device 11 and the slave device 12. The connection mode and the type of application being executed vary. For example, in the main installation When the device 11 is in the dislocation state illustrated in FIG. 1C, the virtual keyboard 128a can be displayed on the touch screen 128 of the device 12 for the user to input characters; the main device 11 and the slave device 12 are at In the side connection mode illustrated in FIG. 1D, the virtual joystick 128b can be displayed on the touch screen 128 of the device 12 for the user to operate the game displayed on the touch screen 112 of the host device 11.

2 is a block diagram of a composite device in accordance with an embodiment of the invention. Referring to FIG. 2, the composite device 20 of the present embodiment includes a main device 21 and a slave device 22 that are adsorbed by a magnetic phase, such as a thinned electronic device such as a mobile phone, a personal digital assistant, or a tablet computer. They operate independently or they can be stacked into a single unit. The components and functions of the main device 21 and the slave device 22 are as follows: The main device 21 includes a first touch screen 211 disposed on the front side, a first wireless transmission module 212, and a plurality of first interfaces disposed on the side. The foot 213, the plurality of first magnetic objects 214a-214f disposed on the back surface, and the first controller 215 coupled to the first touch screen 211, the first wireless transmission module 212, and the first pin 213, respectively.

The slave device 22 includes a second touch screen 221 disposed on the front side, a second wireless transmission module 222, and a plurality of second pins 223 disposed on the side for correspondingly connecting the first pins 213 of the main device 21, and configured. A plurality of second magnetic objects 224a-224f on the front side and a second controller 225 coupled to the second touch screen 221, the second wireless transmission module 222 and the second pin 223, respectively.

The first wireless transmission module 212 and the second wireless transmission The module 222 supports, for example, Wireless Fidelity (Wi-Fi), Worldwide Interoperability for Microwave Access (WiMAX), Bluetooth, or Radio-frequency identification (RFID). The devices of the communication protocol, which correspond to each other, can be used to establish a wireless connection.

Further, the second magnetic objects 224a to 224f are disposed at positions corresponding to the first magnetic objects 214a to 214f of the main device 21 on the front surface of the device, and are magnetically attracted to the first magnetic objects 214a to 214f. The main device 21 and the slave device 22 can be adsorbed in such a manner that they overlap or are displaced from each other. In a state in which the main device 21 and the slave device 22 are overlapped, displaced, or separated from each other, the first controller 215 and the second controller 225 transmit data through a wireless connection, and the master device 21 and the slave device 22 overlap each other. In the state of the second touch screen 221 of the slave device 22, it is covered by the master device 21.

Furthermore, the first pin 213 and the second pin 223 include, for example, a power pin, a ground pin, a Mobile Industry Processor Interface (MIPI) pin, and an internal integrated circuit (Inter-Integrated Circuit). , I ₂ C) pin and general purpose input/output (GPIO) pin. For example, there are four MIPI pins, which can be used to transmit the screen data of the touch screen; for example, there are two I ₂ C pins, which can be used to transmit the touch signal data detected by the touch screen; The legs are, for example, one to two, which can be used to transmit status data, synchronization data or other data of the master device 21 and the slave device 22. The type, quantity or configuration position of the above pins can be freely selected and matched according to actual needs, and there is no limit here.

It should be noted that the main device 21 or the slave device 22 further includes a magnetic field effect sensing device (not shown), which is, for example, a Hall sensor or a magnetic reed switch. The first magnetic objects 214a-214f of the main device 21 or the second magnetic objects 224a-224f of the slave device 22 can be disposed for detecting the first magnetic objects 214a-214f and the second magnetic objects 224a-224f. The magnetic change between the two is provided to the first controller 215 or the second controller 225. Accordingly, the first controller 215 and the second controller 225 can determine the relative position between the first magnetic objects 214a to 214f and the second magnetic objects 224a to 224f, thereby determining between the master device 21 or the slave device 22. The relative position of the second touch screen 211 and the second touch screen 221 is changed. The following is a detailed description of an embodiment.

FIG. 3 is a flow chart of a screen display method of a composite device according to an embodiment of the invention. Referring to FIG. 3, the method of the present embodiment is applied to the composite device 20 of FIG. 2 described above. The following is a detailed description of the detailed steps of the implementation method in conjunction with the components in the composite device 20: First, the first control by the main device 21 The second controller 225 of the slave device 225 detects the magnetic change between the first magnetic objects 214a to 214f on the master device 21 and the second magnetic objects 224a to 224f on the slave device 22, thereby determining the first magnetic property. The relative positions between the objects 214a to 214f and the second magnetic objects 224a to 224f are used to determine the relative positions between the master device 21 and the slave device 22 (step S302). Among them, the main installation The magnetic field effect sensing device such as a plurality of Hall sensors and reed switches can be disposed on the device 21 or the slave device 22, and can be used to detect between the first magnetic objects 214a to 214f and the second magnetic objects 224a to 224f. The magnetic change is not limited here. The magnetic change data detected by the magnetic field effect sensing device is transmitted to the first controller 215 or the second controller 225 for determining the relative position between the master device 21 and the slave device 22.

When the first controller 215 or the second controller 225 determines that the main device 21 and the slave device 22 are separated from each other, the first wireless transmission module 212 and the second wireless transmission module 222 are used to establish a wireless connection, and The corresponding application on the master device 21 and the slave device 22 is synchronized via this wireless connection (step S304). In detail, in a state where the main device 21 and the slave device 22 overlap each other, the second touch screen 221 of the slave device 22 is covered by the main device 21, so that the user cannot be operated, and thus it is not necessary to spend Power or computing resources to execute applications. At this time, the slave device 22 enters the standby state, for example, or only the second wireless transmission module 222 is turned on to establish a wireless connection with the first wireless transmission module 212 of the master device 21 to transmit data.

When the master device 21 and the slave device 221 are separated from the overlapping state, for example, when the master device 21 is pushed toward the side of the slave device 22 to enter the dislocation state, or when the slave device 22 is pulled away from the device 22 to enter the disengaged state. A part or all of the second touch screen 221 of the slave device 22 is exposed. At this time, the exposed portion of the second touch screen 221 can be used to assist the application currently executed by the host device 21. At this time, the magnetic field effect sensing device disposed on the slave device 22 wakes up the slave device 22, thereby establishing the main assembly. The device 21 and the slave device 22 are wirelessly connected and transmit data.

For example, FIG. 4 is a flow chart of a method for waking up a slave device to establish a wireless link according to an embodiment of the invention. Referring to FIG. 4, the method of the present embodiment is applied to the composite device 20 of FIG. 2 described above. Hereinafter, the detailed steps of the present embodiment are described in conjunction with the components in the composite device 20. First, the slave device 22 is configured, for example, in use. The magnetic field effect sensing device thereon detects the magnetic change between the first magnetic objects 214a to 214f on the main device 21 and the second magnetic objects 224a to 224f on the slave device 22, thereby judging the first magnetic objects 214a to 214f. The relative position with the second magnetic objects 224a to 224f is used to determine the relative position between the master device 21 and the slave device 22 (step S402).

When the magnetic field effect sensing device detects that the main device 21 and the slave device 22 are separated from each other, for example, a trigger signal is sent to the slave device 22 through a general purpose input/output (GPIO) pin. The slave device 22 is woken up (step S404). After receiving the trigger signal, the slave device 22 wakes up from the standby state, and activates the second wireless transmission module 222 to search for the first wireless transmission module 212 of the master device 21 (step S406), and further The second wireless transmission module 212 of the main device 21 establishes a wireless connection (step S408). Thereafter, the first controller 215 of the master device 21 can transmit the synchronization signal of the currently executing application to the slave device 22 through the wireless connection to control the second controller 225 of the slave device 22 to launch the same application.

It should be noted that after waking up the slave device 22, the magnetic field effect sensing device will continue to detect the change of the magnetic force to determine the master device 21 and the slave device. When the relative position between the main device 21 and the slave device 22 is restored to overlap with each other, the main device 21 transmits a standby command to the slave device 22 via the wireless link, for example, to control the slave device 22 to enter the standby mode. Save electricity.

Further, in the present embodiment, the main device 21 and the slave device 22 are always separated (without hardware connection) except for the state in which the side faces are connected, and only the necessary information is transmitted by the wireless connection. Since the transmission bandwidth of the wireless connection is limited, if the functions of the same application are to be performed cooperatively on the two devices, it is preferable to install the application on the main device 21 and the slave device 22, and execute the program on one of the devices. When the application is used, the corresponding application on another device is activated by synchronization, and the corresponding operation screen is displayed on the respective touch screens by communication between the two devices, thereby increasing the display space and using the screen. The purpose of elasticity.

Returning to the flow of FIG. 3, after the application programs of the master device 21 and the slave device 22 are synchronized, the first controller 215 of the master device 21 is, for example, based on the relative position between the master device 21 and the slave device 22, in the master device 21. The first touch screen 211 and the second touch screen 221 of the slave device 22 individually display an operation screen of the application (step S306). The first controller 215 of the main device 21 changes the first touch screen 211 of the main device 21 and the second touch screen of the slave device 22, for example, according to the misalignment distance between the main device 21 and the slave device 22. The operation screen of the application displayed on 221. For example, the first controller 215 can determine an operation screen displayed on the second touch screen 221 of the slave device 22 according to the size of the second touch screen 221 after the misalignment. This operation screen includes operations for operating the main device 21 The keyboard, reel, joystick or touchpad of the operation screen are not limited here.

For example, FIG. 5A and FIG. 5B are diagrams showing an example of an operation screen displayed by a composite device in different misalignment modes according to an embodiment of the invention. Referring to FIG. 5A, the main device 51 is, for example, executing the browsing function of the file 512. At this time, if the user pushes the main device 51 of the composite device 50 by about a quarter of the width of the device 52, only one quarter of the touch screen 521 of the device 42 is exposed, and the slave device 52, for example, A reel 522 is displayed on the exposed portion of the touch screen 521 for the user to scroll the document displayed on the touch screen 511 of the main device 51. Referring to FIG. 5B, the main device 51 is, for example, performing an instant messaging function. At this time, if the user pushes the main device 51 of the composite device 50 by about three-quarters of the width from the side of the device 52, the touch screen 521 of the slave device 52 is exposed by three quarters, and the slave device 52, for example, A virtual keyboard 523 is displayed on the exposed portion of the touch screen 521 for the user to perform character input on the message input field 513 displayed on the touch screen 511 of the main device 51.

It should be noted that, in the above embodiment, in order to enable the main device 21 and the slave device 22 of the composite device 20 to communicate with each other to transmit data in a state of being displaced or separated, the main device 21 and the slave device 22 are connected. Using wireless links to transmit information such as control commands to synchronize the state between the two devices, so that the applications can work together to perform the functions operated by the user and display the executed applications on their respective touch screens. Corresponding screen.

However, in another embodiment, when the main device 21 is pushed by the user to the side of the slave device 22 until the two devices are connected by the side, they are located at two The first pin 213 and the second pin 223 on the side of the device are connected to each other to provide a wired connection between the main device 21 and the slave device 22. This link provides a large data transmission bandwidth and can be used to transfer data such as operation screens and touch signals. The following is a detailed description of an embodiment.

FIG. 6 is a flow chart of a screen display method of a composite device according to an embodiment of the invention. Referring to FIG. 6, the method of the present embodiment is applied to the composite device 20 of FIG. 2 described above. Hereinafter, the detailed steps of the present embodiment are described in conjunction with the components in the composite device 20. First, the first control by the main device 21 The second controller 225 of the slave device 225 detects the magnetic change between the first magnetic objects 214a to 214f on the master device 21 and the second magnetic objects 224a to 224f on the slave device 22, thereby determining the first magnetic property. The relative positions between the objects 214a to 214f and the second magnetic objects 224a to 224f are used to determine the relative positions between the master device 21 and the slave device 22 (step S602).

When the first controller 215 determines that the main device 21 and the slave device 22 are connected to each other on the side (that is, the side on which the first pin 213 is disposed on the main device 21 and the side on which the second pin 223 is disposed on the device 22) The first controller 215 transmits a switching command to the second controller 225 of the slave device 22 through the wireless link established by the first wireless transmission module 212 and the second wireless transmission module 222 to The master is handed over to the slave device 22 (step S604). When the second controller 225 receives the switching instruction, for example, the status information of the application currently being executed by the main device 21 is obtained through the wired connection of the first pin 213 and the second pin 223, so as to execute the application ( Step S606), and through the wired link will be in the main device The operation screen of the application displayed on the first touch screen 211 of 21 is transmitted to the main device 21 for display (step S608).

In detail, according to the obtained status data of the main device 21, the second controller 225 can continue to execute the function of the application originally executed by the main device 21 after the main device 21, and according to the main device 21 The second controller 225 can perform the corresponding function on the data of the touch operation detected by the first touch screen 211. In addition, after the second controller 225 obtains the master control, for example, the second touch screen 221 is integrated with the first touch screen 211 of the main device 21 to display a single operation screen (displayed up and down). This can achieve the effect of expanding the display space of the screen.

For example, FIG. 7 is an example of an operation screen displayed by a composite device in a side connection manner according to an embodiment of the invention. Referring to FIG. 7, if the user originally browses the webpage by the main device 71, when the master control of the composite device 70 is handed over to the slave device 72, the slave device 72 obtains the master device 71 via the above-mentioned wired connection or wireless connection, for example. The URL of the webpage being viewed and relinking this URL to open the same webpage. For example, the slave device 72 transmits the data of the screen 712 of the upper half of the webpage to the main device 71 through the above-mentioned wired connection to be displayed on the touch screen 711 of the main device 71, and simultaneously displays the screen of the lower half of the webpage. The 722 is directly displayed on the touch screen 721, thereby integrating the touch screen 711 with the display space of the touch screen 721 to provide a larger screen display space for the user to browse the webpage.

It should be noted that, based on cost considerations, the present invention may select a processor with strong computing capability in one of the master device and the slave device, and a processor with basic computing capabilities in another device, and further according to the master device. And from the connection between the devices, the master control of the composite device is selected to be transferred to the master device or the slave device, thereby controlling the overall operation of the composite device.

For example, the main device can function as a feature phone on which a modem can be configured to provide basic communication functions such as dial-up or SMS. Since these functions are not very demanding on the processor's computing power, only a single-core or dual-core processor with low computing power can be configured on the master device. In contrast, the slave device can be used as a personal digital assistant or tablet, on which many applications can be installed, and various functions such as multimedia playback, web browsing, and games are provided. These functions have higher requirements on the computing power of the processor, so a four-core processor with strong computing power can be configured from the device.

In addition, in the case where the master device and the slave device are separated from each other, the user can also use the master device to control the slave device to perform a function through the wireless link, and request the slave device to transmit the execution result back to the master device through the wireless link. Alternatively, the user can also operate the function directly on the slave device, and the slave device will also transmit the execution result back to the master device via the wireless link. Thereby, the flexibility of the user to operate the composite device can be provided.

In summary, the composite device of the present invention and its screen display method utilize magnetic connection of two devices, and detect magnetic changes to determine the state of overlap, misalignment, side connection, separation, etc. between the two devices, and in two When the devices are separated from each other, the slave device wakes up the slave device and simultaneously activates the corresponding application on the slave device to display different screens of the same application on both devices. This provides greater screen display space and flexibility.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the invention, and any one of ordinary skill in the art can make some modifications and refinements without departing from the spirit and scope of the invention. The scope of the invention is defined by the scope of the appended claims.

10, 20, 50, 70‧‧‧ composite devices

11, 21, 51, 71‧‧‧ main device

111, 127‧‧‧ feet

112, 128, 511, 521, 711, 721 ‧ ‧ touch screen

12, 22, 52, 72‧‧‧ slave devices

121‧‧‧ camera

122‧‧‧flash light

123‧‧‧Volume adjustment button

124‧‧‧Links

125‧‧‧Power button

126‧‧‧ headphone hole

128a‧‧‧virtual keyboard

128b‧‧‧Virtual Joystick

211‧‧‧ first touch screen

212‧‧‧First wireless transmission module

213‧‧‧First pin

214a~214f‧‧‧First magnetic object

215‧‧‧First controller

221‧‧‧ second touch screen

222‧‧‧Second wireless transmission module

223‧‧‧second pin

224a~224f‧‧‧Second magnetic object

225‧‧‧second controller

512‧‧ ‧ documents

513‧‧‧Message input field

522‧‧‧ reel

523‧‧‧Virtual keyboard

S302~S306‧‧‧ steps of the screen display method of the composite device according to an embodiment of the present invention

S402~S408‧‧‧ steps of the screen display method of the composite device according to an embodiment of the present invention

S602~S608‧‧‧ steps of the screen display method of the composite device according to an embodiment of the present invention

1A-1E are schematic views of a composite device according to an embodiment of the invention.

2 is a block diagram of a composite device in accordance with an embodiment of the invention.

FIG. 3 is a flow chart of a screen display method of a composite device according to an embodiment of the invention.

4 is a flow chart of a method for waking up a slave device to establish a wireless link according to an embodiment of the invention.

5A and FIG. 5B are diagrams showing an example of an operation screen displayed by a composite device in different misalignment modes according to an embodiment of the invention.

FIG. 6 is a flow chart of a screen display method of a composite device according to an embodiment of the invention.

FIG. 7 is an illustration of an operation screen displayed by the composite device in a side connection manner according to an embodiment of the invention.

S302~S306‧‧‧ steps of the screen display method of the composite device according to an embodiment of the present invention

Claims (10)

A screen display method for a composite device, which is suitable for a composite device having a separable main device and a slave device, wherein the master device and the slave device are magnetically adsorbed to each other and have a wireless transmission module corresponding to each other and Configuring a touch screen on a front side and a plurality of pins disposed on a side, the method comprising the steps of: detecting a change in the magnetic property to determine a relative position between the main device and the slave device; When the master device and the slave device are separated from each other, a wireless connection is established by using the wireless transmission module, and the corresponding device and the corresponding application on the slave device are synchronized through the wireless connection; The relative position between the master device and the slave device individually displays an operation screen of the application on the touch screen of the master device and the slave device. The screen display method of the composite device according to claim 1, wherein the master device and the slave device further comprise a plurality of magnetic objects corresponding to the positions, and detecting the change of the magnetism to determine the master device and The step of the relative position between the slave devices includes: detecting a change in the magnetic property between the master device and the magnetic objects on the slave device by using a magnetic field effect sensing device to determine between the magnetic objects Relative position, and the relative position between the master device and the slave device is determined accordingly. The screen display of the composite device as described in claim 2 The method for establishing the wireless connection by using the wireless transmission module includes: transmitting, by the magnetic field effect sensing device, a trigger signal to the slave device to wake up the slave device; and starting the wireless transmission module of the slave device Searching for the wireless transmission module of the primary device; and establishing the wireless connection with the wireless transmission module of the secondary device through the primary device. The screen display method of the composite device according to claim 3, wherein after the step of waking up the slave device, the method further comprises: continuously detecting the change of the magnetic state to determine between the master device and the slave device The relative position; and when the master device and the slave device return to the overlapping state, the master device transmits a standby command to the slave device through the wireless link to control the slave device to enter a standby mode. The method for displaying a screen of a composite device according to claim 1, wherein the step of synchronizing the master device and the corresponding application on the slave device comprises: transmitting, by the master device, the currently executing A synchronization signal of the application to the slave device to control the slave device to launch the same application. The screen display method of the composite device according to claim 1, wherein the main device and the touch screen of the slave device are individually displayed according to the relative position between the master device and the slave device. should The step of the operation screen of the program includes: changing, by the main device, the application displayed on the touch screen of the main device and the slave device according to a wrong distance between the master device and the slave device In the operation screen, the operation screen displayed on the touch screen of the slave device is determined according to a size exposed by the touch screen after the misalignment. The screen display method of the composite device according to claim 1, wherein after detecting the change of the magnetic property to determine the relative position between the main device and the slave device, the method further comprises: when When the master device and the slave device are connected to each other by the side, the master device transmits a switching command to the slave device through the wireless link to hand over a master control of the composite device to the slave device; The device obtains a status data of the application executed by the main device through the pins to successively execute the application, and transmits the operation screen of the application to be displayed on the touch screen of the main device to Displayed on the main unit. The method for displaying a screen of a composite device according to claim 1, wherein the step of synchronizing the master device and the corresponding device on the slave device after the wireless link established by the wireless transmission module And further comprising: controlling, by the master device or the slave device, the application on the slave device to perform a function, and transmitting an execution result of performing the function to the master device. A composite device comprising: a main device includes: a first touch screen disposed on a front side of the main device; a first wireless transmission module; a plurality of first pins disposed on a side of the main device; and a plurality of first magnetic objects The first controller is coupled to the first touch screen, the first wireless transmission module, and the first pins; and a slave device, including: a second a touch screen is disposed on the front side of the slave device; a second wireless transmission module establishes a wireless connection with the first wireless transmission module; and a plurality of second pins are disposed on the side of the slave device, corresponding to Connecting the first pins of the main device; a plurality of second magnetic objects disposed on the front surface of the slave device at positions corresponding to the first magnetic objects of the main device, transmitting magnetic and the first a magnetic object is attracted to cause the main device and the slave device to be adsorbed in a manner of overlapping or misaligning each other; and a second controller is coupled to the second touch screen, the second wireless transmission module, and the plurality of Two pins, wherein when judging the main device and the A wireless connection is established by using the first wireless transmission module and the second wireless transmission module, and the corresponding device and the corresponding application on the slave device are synchronized through the wireless connection. And the touch screen of the master device and the slave device according to a relative position between the master device and the slave device Do not display an operation screen of the application. The composite device of claim 9, wherein the main device or the slave device further comprises: a magnetic field effect sensing device for detecting the first magnetic object and the main device and the slave device a change in the magnetic relationship between the second magnetic objects, thereby providing the first controller or the second controller to determine a relative position between the first magnetic objects and the second magnetic objects, and determining the main device And the relative position between the slave devices.