RU2795130C2 - Terminal device, method and system for screen projection with one touch using remote control - Google Patents

Abstract

FIELD: communication.

SUBSTANCE: using the terminal device, when the terminal device touches the remote control NFC tag, the NFC tag content is received, wherein the NFC tag content includes the NFC tag identification code, and when the terminal device does not have a tag record, the terminal device displays the first pop-up window, wherein the tag entry includes an identification code, the first pop-up window includes a list of displays comprising the first option, the first option includes a device name for the display, the first user operation on the first option is received by the terminal device, and the terminal device establishes, in response to the first operation, the first connection of the screen projection with the display, the terminal device saves, in response to the first operation, the corresponding relationship between the identification code and the display information, and the terminal device establishes, when the terminal device has the tag record, the second connection of the screen projection with the display corresponding to the identification code, in accordance with the identification code.

EFFECT: accelerating the screen projection.

16 cl, 27 dwg, 3 tbl

Description

This application claims priority over Chinese Patent Application No. 201910735941.2 filed by the National Intellectual Property Administration of China on August 9, 2019, entitled "METHOD AND SYSTEM FOR ONE-TOUCH SCREEN PROJECTION" and Patent Application No. 202010381287.2 filed by the National Intellectual Property Administration of China property on May 8, 2020 and entitled "TERMINAL DEVICE, METHOD, AND SYSTEM FOR IMPLEMENTING ONE-TOUCH SCREEN PROJECTION BY USING REMOTE CONTROL", which are hereby incorporated by reference in their entirety.

The field of technology to which the invention belongs

The present application relates to the field of short distance communication and, in particular, to the field of screen projection using NFC.

State of the art

Near-field communication (NFC) is a short-range wireless communication technology based on a carrier frequency of 13.56 megahertz (MHz) that enables point-to-point contactless data transmission between devices. Due to its high degree of security, NFC has gained increasing popularity and public acceptance in recent years. The development of NFC-enabled terminals is proceeding particularly rapidly. NFC-enabled terminals can operate in three modes: reader/writer mode, card emulation mode, and point-to-point mode. Reading tags in read/write mode in order to use applications is now becoming more common.

The NFC reader/writer mode can be initiated without first bringing the application to the forefront when the mobile phone screen is lit. Currently, existing tag technology allows a direct connection at the touch of a mobile phone, without the user performing cumbersome operations. In addition, after touching, it can be determined that the mobile phone is connected to the Internet of Things (IOT) device.

Disclosure of the essence of the invention

The present application provides a touch screen projection method, an electronic device and a system to help improve user efficiency and intelligence of an electronic device and improve user experience.

According to the first approach, a screen projection system is provided. The system contains a remote control, a terminal device, and a display. The remote control is configured such that the remote control includes an NFC tag, where the NFC tag stores first information, and the first information contains display identification information and an NFC tag identification code. The terminal device is configured such that the terminal device has an NFC function, obtains the first information when the remote control NFC tag is touched, initiates the first display request when the first information is not recorded in the terminal device; receives the first response message from the display; determines, based on the first response message, that the display is an acceptable device; and receives the first operation of the user and establishes a connection with the screen projection display. Remote control touch to realize one-touch screen projection is more convenient to operate.

With reference to the first approach, in the first draft, the screen projection connection contains a connection based on the Miracast protocol or on the DLNA protocol. With this protocol, the operation will be more convenient.

Referring to the first approach, in the second design, the terminal device is further configured to send a second connection request to the display to request the establishment of a P2P connection to implement screen projection.

With reference to the first approach, in a third design, the display is further configured to display a first prompt when a second connection request is received from the terminal, where the first prompt is used to prompt the user to accept or reject the second connection request; and receiving the second user operation and establishing a screen projection connection with the terminal. Thus, the user may be prompted to accept or reject the connection request.

Referring to the first approach, in the fourth design, the terminal is further configured to send a third connection request to the display when the first information is recorded in the terminal, where the third display connection request is used to set up a screen projection service. If the connection was once established before, this project can reduce the number of steps, thus saving electricity and improving user experience.

With reference to the first approach, in the fifth design, the tag is further configured to display a display identification in response to the first response message. Thus, the user can be informed about the currently used display.

With reference to the first approach, in the fifth design, the tag is further configured to display a first window when the remote control NFC tag is touched, where the first window contains display identification information. Thus, remote control information can be communicated to the user, improving the user's experience.

According to the second approach, a screen projection system method is provided. The method contains steps in which:

receiving by the first electronic device the first information when the first electronic device touches the second electronic device, where the first information contains the identification information of the second electronic device and the identification information of the third electronic device, and the second electronic device communicates with the third electronic device; transmitting, by means of the first electronic device, a first request to a third electronic device, where the first request is used for the first electronic device to request a screen projection connection to be established with the third electronic device; displaying by the third device first prompt information in response to the first request, where the first prompt information is used to prompt the user to reject or accept the first request; and receiving, through the third device, the first operation of the user, and establishing a screen projection connection with the first electronic device. Remote control touch to realize one-touch screen projection is more convenient to operate.

With reference to the second approach, in the first design, the screen projection connection contains a connection based on the Miracast protocol or on the DLNA protocol. With this protocol, the operation becomes more convenient.

With reference to the second approach, in the second design, the first electronic device and the second electronic device both have an NFC function.

With reference to the second approach, in the third project, the NFC tag is installed in the second electronic device.

With reference to the second approach, in the fourth draft, the identification information of the second electronic device or the identification information of the third electronic device contains at least one of the device name, device type, MAC address information, identification code, manufacturer information, and screen projection parameter. .

Under a third approach, this application further provides an electronic device. An electronic device includes one or more processors, a memory, multiple application programs, and one or more computer programs, where one or more computer programs are stored in memory, one or more computer programs contain instructions, and when the instructions are executed by the electronic device, the electronic device is forced to perform the following operations : obtaining first information when the electronic device touches the second electronic device, where the first information contains the identification information of the second electronic device and the identification information of the third electronic device, and the second electronic device communicates with the third electronic device; transmitting the first request to the third electronic device, where the first request is used for the electronic device to request to establish a connection with the third electronic device for screen projection; and connecting the electronic device with the third electronic device for screen projection. Remote control touch to realize one-touch screen projection is more convenient to operate.

With respect to the third approach, in the first design, the screen projection connection contains a connection based on the Miracast protocol or the DLNA protocol. With the help of the existing protocol, the work becomes more convenient.

With reference to the third approach, in the second design, the electronic device and the second electronic device both have NFC functions.

With reference to the third approach, in the third draft, the NFC function and the WLAN function of the electronic device are both allowed.

With reference to the third approach, in the fourth design, the electronic device further performs the following: receives a first response message before establishing a connection with the third electronic device for screen projection, where the first response is used to indicate that the third electronic device has received the first request; and in response to the first response establishes a connection with the third electronic device for electronic projection.

With reference to the third approach, in the fifth design, the electronic device further performs the following: displays a prompt field when the first information is received, where the prompt field contains identification information of the third electronic device.

With reference to the third approach, in the sixth design, the electronic device further performs the following: displays a second prompt field in response to a touch operation when the WLAN function of the electronic device is disabled, where the second prompt field is used to prompt the user whether to enable the WLAN function.

In accordance with the fourth approach, the device provides the technical solution. The device is contained in an electronic device. The device may implement the behavior of the electronic device in the prior approaches and possible embodiments of the prior approaches. The functions may be implemented in hardware, or may be implemented in hardware running corresponding software. The hardware or software contains one or more modules or blocks corresponding to functions.

In accordance with the fifth approach, the technical solution provides an electronic device containing one or more processors, memory, multiple application programs and one or more computer programs. One or more computer programs are stored in memory and one or more computer programs contain instructions. When the commands are executed by the electronic device, the electronic device is forced to execute the method by any of the possible embodiments of any of the previous approaches.

According to the sixth approach, the technical solution provides an electronic device containing one or more processors and one or more memories. One or more memories are associated with one or more processors. One or more memories are configured to store a control computer program. The control computer program contains machine instructions. When one or more processors execute machine instructions, the electronic device is forced to perform the touch screen projection method in any of the possible embodiments of any of the previous approaches.

According to the seventh approach, the technical solution provides a computer storage medium containing machine instructions. When the machine instructions are running on the electronic device, the electronic device is forced to perform the touch screen projection method in any of the possible embodiments of any of the previous approaches.

According to the eighth approach, the technical solution provides a computer software product. When a computer program product is running on an electronic device, the electronic device is forced to perform a touch screen projection method in any of the possible designs of any of the approaches listed above.

According to the ninth approach, the technical solution provides a chip system comprising a processor capable of recalling and executing a computer program so that the electronic device in which the chip system is installed performs the method corresponding to the first approach, the second approach, or the third approach, or any first approach, second approach or third approach project. Additionally, the additional chip system contains memory.

According to the tenth approach, the present application further provides remote control. The remote control contains an NFC tag and a processor. The NFC tag stores device information for the display connected to the remote control, and the NFC tag has a unique identification code. Storing display identification information in the remote control can realize screen projection more quickly.

Brief description of the drawings

Fig. 1 is a first schematic representation of a terminal device according to an embodiment of the present application;

fig. 2 is a second schematic representation of a terminal device according to an embodiment of the present application;

fig. 3 is a first schematic representation of a screen projection system according to an embodiment of the present application;

fig. 4 is a first schematic representation of a screen projection method according to an embodiment of the present application;

fig. 5 is a first diagram of a user interface of a screen projection method according to an embodiment of the present application;

fig. 6 is a second user interface diagram of a screen projection method according to an embodiment of the present application;

fig. 7 is a second diagram of a screen projection method according to an embodiment of the present application;

fig. 8 is a third user interface diagram of a screen projection method according to an embodiment of the present application;

fig. 9A is a third diagram of a screen projection method according to an embodiment of the present application;

fig. 9B is a fourth user interface diagram of a screen projection method according to an embodiment of the present application;

fig. 9C is a fifth user interface diagram of a screen projection method according to an embodiment of the present application;

fig. 9D is a sixth diagram of a user interface of a screen projection method according to an embodiment of the present application;

fig. 10 is a fourth diagram of a screen projection method according to an embodiment of the present application;

fig. 11 is a fifth diagram of a screen projection method according to an embodiment of the present application;

fig. 12 is a sixth diagram of a screen projection method according to an embodiment of the present application;

fig. 13 is a seventh diagram of a user interface of a screen projection method according to an embodiment of the present application;

fig. 14 is an eighth diagram of a user interface of a screen projection method according to an embodiment of the present application;

fig. 15 is a seventh diagram of a screen projection system according to an embodiment of the present application;

fig. 16 is an eighth diagram of a screen projection system according to an embodiment of the present application;

fig. 17 is a ninth diagram of a user interface of a screen projection method according to an embodiment of the present application;

fig. 18 is a tenth user interface diagram of a screen projection method according to an embodiment of the present application;

fig. 19A is an eleventh diagram of a user interface of a screen projection method according to an embodiment of the present application;

fig. 19B is a twelfth diagram of a user interface of a screen projection method according to an embodiment of the present application;

fig. 20 is a seventh diagram of a user interface of a screen projection method according to an embodiment of the present application;

fig. 21 is a third diagram of a terminal device according to an embodiment of the present application;

fig. 22 is a tenth diagram of a terminal device according to an embodiment of the present application; And

fig. 23 is an eleventh diagram of a terminal device according to an embodiment of the present application.

Implementation of the invention

In FIG. 1 is a first block diagram of terminal device 100.

End device 100 may include processor 110, external memory interface 120, internal memory 121, universal serial bus (USB) interface 130, charge control module 140, power management module 141, battery 142, antenna 1, antenna 2, module 150 mobile, wireless module 160, audio module 170, loudspeaker 170A, headset 170B, microphone 170C, headphone jack 170D, sensor module 180, key 190, motor 191, indicator 192, camera 193, display screen 194, module card interface 195 subscriber identification module (SIM) and the like. The sensor module 180 may include a pressure sensor 180A, a gyro sensor 180B, an atmospheric pressure sensor 180C 180C, a magnetic sensor, an acceleration sensor 180E, a distance sensor 180F, an optical proximity sensor 180G, fingerprint sensor 180H, temperature sensor 180J, touch sensor 180K, light sensor 180L, bone conduction sensor 180M, and the like.

It should be understood that the structure shown in this embodiment of the present invention does not constitute a specific limitation for the terminal device 100. In some other embodiments of the present application, the terminal device 100 may contain more or fewer components than shown in the drawing, or combine some of the components , separate some of the components, or arrange the components differently. The components shown may be implemented in hardware, software, or a combination of software and hardware.

Processor 110 may include one or more processors. For example, processor 110 may include an application processor (AP), a modem processor, a graphics processing unit (GPU), an image signal processor (ISP), a controller, a video codec, a digital signal processor (DSP). , DSP), baseband processor, neural network processor (neural-network processing unit, NPU), and/or the like. The various processors may be separate devices or integrated into one or more processors.

The controller may generate an operation control signal corresponding to a control program instruction and a clock signal to control fetch instructions and execution instructions.

Memory may be further provided in processor 110 to store instructions and data. In some embodiments, the memory in processor 110 is a cache. The memory may store instructions or data that processor 110 has just used or is cycling through. If processor 110 needs to use instructions or data again, the processor can directly call instructions or data from memory, thus avoiding re-access, reducing processor 110 latency, and improving system efficiency.

In some embodiments, processor 110 may include one or more interfaces. The interface may include an inter-integrated circuit (I2C) interface, an inter-integrated circuit sound (I2S) interface, a pulse code modulation (PCM) interface, a universal asynchronous receiver/transmitter interface (universal asynchronous receiver/transmitter, UART), mobile industry processor interface (MIPI), general-purpose input/output (GPIO), subscriber identity module (SIM), interface universal serial bus (USB) and/or the like.

The I2C interface is a bidirectional synchronous serial bus and contains a serial data line (serial data line, SDA) and a serial clock line (serial clock line, SCL). In some embodiments, processor 110 may include multiple I2C buses. The processor 110 may communicate with the touch sensor 180K, charger, flash memory, camera 193, and the like using various I2C bus interfaces. For example, processor 110 may communicate with touch sensor 180K using an I2C interface such that processor 110 and touch sensor 180K communicate through the I2C bus interface to implement the touch function of terminal device 100.

The I2S interface can be used for audio communication. In some embodiments, processor 110 may include multiple I2S buses. The processor 110 may communicate with the audio module 170 using an I2S bus to communicate between the processor 110 and the audio module 170. In some embodiments, the audio module 170 may transmit an audio signal to the wireless module 160 via the I2S interface to implement call answering functionality via a Bluetooth earpiece. .

The PCM interface can also be used for audio communications to sample, quantize and encode an analog signal. In some embodiments, audio module 170 and radio module 160 may be connected using a PCM bus interface. In some embodiments, the audio module 170 may also transmit an audio signal to the wireless communication module 160 via the PCM interface so as to implement call answering functionality via a Bluetooth headset. Both the I2S interface and the PCM interface can both be used for audio communication.

The UART interface is a universal serial data bus used for asynchronous transmission. The bus may be a talkback bus. It converts the data to be transmitted between serial transmission and parallel transmission. In some embodiments, the UART interface is typically configured to connect processor 110 to wireless communication module 160. For example, the processor 110 communicates with the Bluetooth module of the wireless communication module 160 via the UART interface to implement the Bluetooth function. In some embodiments, the audio module 170 may transmit an audio signal to the wireless communication module 160 via a UART interface so as to implement a Bluetooth headphone music playback function.

The MIPI interface may be configured to connect processor 110 to display screen 194, camera 193, and other peripherals. The MIPI interface contains a camera serial interface (CSI), a display serial interface (Display Serial Interface, DSI), and the like. In some embodiments, processor 110 and camera 193 communicate via a CSI interface to implement the function of terminal device 100. Processor 110 and display screen 194 communicate via a DSI interface to implement the photography function of terminal device 100.

The GPIO interface can be configured via software. The GPIO interface can be configured as a control signal or as a data signal. In some embodiments, the GPIO interface may be configured to connect processor 110 to camera 193, display screen 194, wireless module 160, audio module 170, sensor module 180, and the like. The GPIO interface may alternatively be configured as an I2C interface, an I2S interface, a UART interface, a MIPI interface, or the like.

The USB interface 130 is an interface that fulfills the specification of the USB standard, and specifically may be a mini USB interface, a micro USB interface, a USB type C interface, or the like. USB interface 130 may be configured to connect a charger to charge terminal device 100, may also be configured to transfer data between terminal device 100 and a peripheral device, and may also be configured to be connected to an earphone to play audio through the earphone. This interface may also be configured to connect to another terminal device, such as an AR device.

It should be understood that the relationship when connecting interfaces between modules described in this embodiment of the present invention is illustrative, and does not constitute a structural limitation for terminal device 100. In some other embodiments of the present application, terminal device 100 may alternatively accept an interface connection mode that is different from the previous embodiment, or be a combination of multiple interface connection modes.

The charge control module 140 is configured to receive charging input from the charger. The charger can be a wireless charger or a wired charger. In some wired charger embodiments, charge control module 140 may receive charging input from a wired charger via USB interface 130. In some wireless charger embodiments, charge control module 140 may receive a wireless charging input via the wireless charging coil of tag 100. Charge control module 140 may also supply power to the tag via power control module 141 while battery 142 is being charged.

Power management module 141 is configured to be connected to battery 142, charge management module 140, and processor 110. Power management module 141 receives input from battery 142 and/or charge management module 140 to supply power to processor 110, internal memory 121, screen 194 displays, a camera 193, a wireless communication module 160, and the like. The power management module 141 may also be configured to monitor parameters such as battery capacity, battery cycles, and battery condition (electrical leakage and impedance). In some other embodiments, power management module 141 may alternatively be provided in processor 110. In some other embodiments, power management module 141 141 and charge management module 140 may alternatively be provided in the same device.

The wireless communication function of terminal device 100 may be implemented using antenna 1, antenna 2, mobile communication module 150, wireless communication module 160, modem processor, baseband processor, and the like.

Antenna 1 and antenna 2 are configured to transmit and receive an electromagnetic wave signal. Each antenna of terminal device 100 may be configured to cover one or more communication bands. Different antennas may also be multiplexed to improve antenna utilization. For example, antenna 1 may be multiplexed as a diversified wireless LAN antenna. In some other embodiments, an antenna may be used in combination with a tunable switch.

The mobile communication unit 150 can provide a wireless communication solution including 2G/3G/4G/5G and the like. for application to terminal device 100. Mobile communication module 150 may include at least one filter, switch, power amplifier, low noise amplifier (LNA), and the like. The mobile communication unit 150 may receive the electromagnetic waves through the antenna 1, perform processing such as filtering and amplification on the received electromagnetic wave, and then transmit the processed electromagnetic wave to the modem processor for demodulation. The mobile communication module 150 may also amplify the signal modulated by the modem processor and convert it to an electromagnetic wave for transmission through the antenna 1. In some embodiments, at least some of the functional modules of the mobile communication module 150 may be provided in the processor 110. In some embodiments, implementation of at least some of the functional modules of the module 150 mobile communication and at least some of the modules of the processor 110 may be provided in the same device.

The modem processor may include a modulator and a demodulator. The modulator is configured to convert the low frequency baseband signal to be transmitted into a mid or high frequency signal. The demodulator is configured to demodulate the received electromagnetic signal into a low frequency baseband signal. The demodulator then passes the demodulated low frequency baseband signal to the baseband processor for processing. The low frequency baseband signal is transmitted to the application processor after being processed by the baseband processor. The application processor outputs audio through an audio device (not limited to speaker 170A, headset 170B, etc.) or displays an image or video through display screen 194. In some embodiments, the modem processor may be a separate component. In some other embodiments, the modem processor may be independent of processor 110 and provided in the same device along with mobile communication module 150 150 or other functional module.

The wireless communication module 160 can provide wireless communication solutions such as a wireless local area network (WLAN) (e.g., Wi-Fi network (wireless fidelity, Wi-Fi), Bluetooth (bluetooth, BT), global navigation satellite system (global navigation satellite system, GNSS), frequency modulation (frequency modulation, FM), near-field communications (near field transmission, NFC) and infrared technology (infrared, IR) for use in the terminal device 100. The radio module 160 can be one or more devices integrated with at least one processor processing module.The wireless communication module 160 receives the electromagnetic signal through the antenna 2, performs frequency modulation and electromagnetic signal filtering, and sends the processed signal to the processor 110. The wireless communication module 160 may also receive the signal to be transmitted from the processor 110, perform frequency modulation and amplification of the signal and convert it into an electromagnetic signal for transmission through the antenna 2.

In some embodiments, antenna 1 of terminal device 100 is connected to mobile communication module 150 and antenna 2 is connected to wireless communication module 160 so that terminal device 100 can communicate with the network and another device using wireless technology. The wireless technology may include a global system for mobile communications (GSM), a general packet radio service (GPRS), a code division multiple access (CDMA) system, a broadband wideband code division multiple access (WCDMA), time-division code division multiple access (TD-SCDMA), long-term evolution (LTE), BT, GNSS, WLAN, NFC, FM, IR technology and/or the like. GNSS may contain a global positioning system (global positioning system, GPS), a global navigation satellite system (global navigation satellite system, GLONASS), a Beidou navigation satellite system (BD), a quasi-zenith satellite system (quasi-zenith satellite system, QZSS), and/or satellite based augmentation system (SBAS).

The terminal device 100 implements the display function using a GPU, a display screen 194, an application processor, and the like. The GPU is an image processing microprocessor and is connected to the display screen 194 and the application processor. The GPU is configured to perform mathematical and geometric calculations for graphics rendering. Processor 110 may include one or more GPUs that execute software instructions to generate or modify displayed information.

The display screen 194 is configured to display an image, video, or the like. The display screen 194 includes a display panel. The display panel can be a liquid crystal display (LCD), an organic light-emitting diode (OLED), an active matrix organic LED display, or an active-matrix organic light emitting diode (AMOLED) display, flexible LED display (flex light-emitting diode, FLED), Miniled, MicroLed, Micro-oLed, quantum dot LED display (quantum dot light emitting diode, QLED), etc. In some embodiments, terminal 100 may comprise one or N display screens 194, where N is a positive integer greater than 1.

Terminal device 100 may implement a screen capture function using an ISP, camera 193, video codec, GPU, display screen 194, application processor, and the like.

The ISP is configured to process the data returned by the camera 193. For example, while photographing, the shutter is pressed, light is transmitted to the camera's photosensor through the lens. The optical signal is converted into an electrical signal. The camera's photosensor sends an electrical signal to the ISP for processing to convert the signal into an image visible to the naked eye. The ISP can further optimize the noise, brightness, and skin tone of an image using algorithms. The ISP can further optimize parameters such as shutter speed and color temperature of the scene being photographed. In some embodiments, the ISP may be provided in the chamber 193.

Camera 193 is configured to capture a still image or video. An optical image is formed for an object through a lens and projected onto a photosensor. The photosensitive element can be a charge coupled device (CCD) or a complementary metal-oxide-semiconductor (CMOS) phototransistor. The photosensor converts the optical signal into an electrical signal and then transmits the electrical signal to the ISP to convert it into a digital image signal. The ISP outputs the digital image signal to the DSP for processing. The DSP converts the digital image signal into a standard format image signal such as RGB or YUV. In some embodiments, terminal 100 may include one or N cameras 193, where N is a positive integer greater than 1.

The digital signal processor is configured to process the digital signal. In addition to processing the digital image signal, the digital signal processor may also process other digital signals. For example, when terminal 100 selects a frequency, the digital signal processor is configured to be Fourier transformed, or the like. on frequency energy.

The video codec is configured to compress or decompress digital video. Terminal device 100 may support one or more types of video codecs so that terminal device 100 can play or record video in a variety of encoding formats, such as the moving picture experts group (MPEG) MPEG1, MPEG2, MPEG3, and MPEG4 formats.

The NPU is a neural-network (NN) computing processor that speeds up information input processes by using the biological structure of the neural network, such as the transmission mode between human brain neurons, and can also perform continuous self-learning. With the NPU, terminal device 100 can implement intelligent cognition and other applications such as image recognition, face recognition, speech recognition, and text comprehension.

The external memory interface 120 may be configured to be connected to an external memory card, such as a micro SD card, to expand the storage capacity of the target device 100. The external memory card communicates with the processor 110 using the external memory interface 120 to realize a storage function. data, such as storing music, videos, and other files on an external memory card.

Internal memory 121 may be configured to store an executable computer program. The executable control program contains commands. The internal memory 121 may be a program storage area and a data storage area. The program storage area may store an operating system, an application program requiring at least one function (for example, a sound reproduction function and a picture reproduction function), and the like. The data storage area may store data (for example, audio data and a phone book) created during use of the terminal device 100. In addition, the internal memory 121 may contain high-speed random access memory or may contain non-volatile memory, such as at least one storage device on magnetic disks, a flash memory device, or universal flash storage (UFS). The processor 110 implements various functional application and data processing of the terminal device 100 by executing instructions stored in the internal memory 121 and/or instructions stored in the memory provided in the processor.

Terminal device 100 may implement an audio function such as music playback or recording using audio module 170, speaker 170A, headset 170B, microphone 170C, earphone jack 170D, application processor, and the like.

The audio module 170 is configured to convert digital audio information into an analog audio signal for output, and is also configured to input analog audio into a digital audio signal. The audio module 170 may be further configured to encode and decode the audio signal. In some embodiments, audio module 170 may be provided in processor 110, or some functional modules of audio module 170 may be provided in processor 110.

The loudspeaker 170A, also referred to as a "speaker", is configured to convert an electrical audio signal into an audio signal. Terminal 100 may be used to listen to music or answer a call using speaker 170A.

Headphone 170B, also referred to as a "receiver", is configured to convert an electrical audio signal into an audio signal. When the terminal device 100 is used to answer a call or to play a voice message, the user can hear the voice by bringing the headset 170B close to the ear.

Microphone 170C, also referred to as a "mic" or "mike", is configured to convert an audio signal into an electrical signal. When making a call or sending a voice message, the user may enter an audio signal into the microphone 170C while speaking near the microphone 170C. Terminal 100 may be provided with at least one microphone 170C. In some other embodiments, terminal 100 may be provided with two microphones 170C to reduce noise in addition to collecting audio signals. In some other embodiments, terminal device 100 may alternatively be provided with three, four, or more microphones 170C to collect audio signals, reduce noise, identify an audio source, implement directional recording, and the like.

The earphone connector 170D is configured to connect a wired earphone. Headphone connector 170D may be a USB interface 130 or may be a standard 3.5 mm open mobile terminal platform (OMTP) interface or a standard cellular telecommunications industry association of the USA (CTIA) interface.

The pressure sensor 180A is configured to sense a pressure signal and can convert the pressure signal into an electrical signal. In some embodiments, pressure sensor 180A may be provided on display screen 194. There are many types of pressure sensors 180A such as resistive pressure sensor, inductive pressure sensor, and capacitive pressure sensor. The capacitive pressure sensor may comprise at least two parallel plates made of a conductive material. When a force is applied to the pressure sensor 180A, the capacitance between the electrodes changes. Terminal 100 determines the pressure intensity based on the change in capacitance. When a touch operation is performed on the display screen 194, the terminal device 100 detects the intensity of the touch operation using the pressure sensor 180A. The terminal device 100 may further calculate the location of the touch based on the detection signal of the pressure sensor 180A. In some embodiments, touch operations performed at the same touch site but with different intensity of touch operations may correspond to different operation commands. For example, when a touch operation with a touch operation intensity less than the first pressure threshold is performed on the short message service application icon, the SMS text message viewing command is executed. When a touch operation with a touch operation intensity greater than or equal to the first pressure threshold is performed on the short message service application icon, a command to create a new SMS text message is executed.

The gyro sensor 180B may be configured to determine the position of the target device 100 while moving. In some embodiments, gyro sensor 180B may be used to determine the angular velocities of terminal device 100 about three axes (ie, the x, y, and z axes). The gyro sensor 180B can be used for image stabilization. For example, when the shutter is pressed, the gyro sensor 180B detects the deflection angle of the terminal 100 and calculates, based on the angle value, the distance by which the lens module needs to be compensated so that the lens can move back to counteract the oscillation of the terminal 100 and realize image stabilization. The gyro sensor 180B can additionally be used for navigation and somatosensory play scenarios.

The atmospheric pressure sensor 180C is configured to measure atmospheric pressure. In some embodiments, tag 100 calculates altitude based on the barometric pressure value measured by barometric pressure sensor 180C to assist in positioning and navigation.

The magnetic pickup 180D includes a Hall effect sensor. The terminal device 100 may use the magnetic sensor 180D to detect the opening and closing of a cabinet flap. In some embodiments, when tag 100 is a flip phone, tag 100 can detect the opening and closing of a closet lid using magnetic sensor 180D. Further, features such as automatic release of the flip cover are set based on the detected open or closed state of the cabinet or the flip cover of the cabinet.

Acceleration sensor 180E can detect acceleration amounts of tag 100 in all directions (typically three axes), can detect the magnitude and direction of gravity when tag 100 is stationary, and can further be configured to sense the tag's position for switching landscape/portrait mode, pedometer, etc.

The distance sensor 180F is configured to measure a distance. Terminal 100 may measure distance using infrared or laser. In some embodiments, in a photography scenario, terminal 100 may use distance sensor 180F to measure distance for fast focusing.

The optical proximity sensor 180G may include, for example, a light emitting diode (LED) and an optical detector such as a photodiode. The LED may be an infrared emitting LED. Terminal 100 emits infrared light to the outside using an LED. Terminal 100 uses a photodiode to detect infrared light reflected by a nearby object. When sufficient reflected light is detected, the object may be judged to be near terminal 100. When insufficient reflected light is detected, terminal 100 may determine that there is no object near terminal 100. The terminal device 100 can use the 180G optical proximity sensor to detect that the user holds the terminal device 100 to the ear for a call to automatically turn off the screen to save power. The 180G optical proximity sensor can also be used to automatically unlock the screen and lock in case mode and pocket mode.

The light sensor 180L is configured to sense the brightness of ambient light. Terminal device 100 may adaptively adjust the brightness of the display screen 194 based on the detected ambient light brightness. The ambient light sensor 180L may also be configured to automatically adjust the white balance during photography. The ambient light sensor 180L may also work in conjunction with the optical proximity sensor 180G to detect if the terminal 100 is in a pocket to avoid accidental touching.

The fingerprint sensor 180H is configured to receive a digital fingerprint. The terminal device 100 can realize fingerprint unlock, application lock access, fingerprint photography, fingerprint call answering, and the like. when using the sign of the received digital fingerprint.

The temperature sensor 180J is configured to detect the temperature. In some embodiments, terminal device 100 performs a temperature processing principle using the temperature detected by temperature sensor 180J. For example, when the temperature reported by temperature sensor 180J exceeds a threshold, tag 100 reduces the performance of the processor located temperature sensor 180J to reduce power consumption and implement thermal protection. In some other embodiments, when the temperature is below another threshold, terminal 100 heats battery 142 to avoid terminal device 100 crashing due to low temperature. In some other embodiments, when the temperature is below yet another threshold, terminal 100 raises the output voltage of battery 142 to avoid a low temperature-induced crash.

The 180K touch sensor is also referred to as the "touch device". The touch sensor 180K may be disposed on the display screen 194, and the touch sensor 180K and the display screen 194 form a touch screen, also referred to as a "touch screen". The touch sensor 180K is configured to detect a touch operation performed on or near the touch sensor 180K. The touch sensor may communicate the detected touch operation to an application processor to determine the type of touch event and provide visual output associated with the touch operation via the display screen 194. In some other embodiments, the touch sensor 180K may alternatively be located on the surface of the terminal 100, that is, in a different location from the display screen 194.

The bone conduction sensor 180M can receive a vibration signal. In some embodiments, the bone conduction sensor 180M may receive a vibration signal generated when a human voice vibrates the bone. The bone conduction sensor 180M can also detect a pulse from a person to obtain a blood pressure pulse signal. In some embodiments, a bone conduction sensor 180M may alternatively be provided in an earpiece to form a bone conduction earpiece. The audio module 170 can distinguish the speech signal from the vibration signal received by the bone conduction sensor when the human voice vibrates the bone to realize the speech function. The application processor can distinguish the heart rate information from the blood pressure pulse signal received by the bone conduction sensor to realize the heart rate detection function.

The key 190 includes a power key, a volume key, and the like. The key 190 may be a mechanical key or may be a touch key. Terminal device 100 may receive input from a key to generate a key signal input associated with user settings and functional control of terminal device 100.

Motor 191 may generate a vibration prompt. Motor 191 may be used for vibration prompt of an incoming call and may also be used for vibration feedback on touch. For example, touch operations performed in different applications (such as photography and audio playback) may correspond to different vibration feedback effects. The motor 191 may also respectively provide different vibration feedback effects for touch operations performed in different areas of the display screen 194. Different application scenarios (such as time reminder, receiving information, alarm clock and games) can also correspond to different vibration feedback effects. The touch effect of vibration feedback can also be customized.

The indicator 192 may be an indicator light and may be configured to indicate a state of charge, a power change, a message, a missed call, a notification, and the like. The SIM card interface 195 is configured to be connected to a SIM card. The SIM card can be inserted into the SIM card interface 195 or pulled out of the SIM card interface 195 to contact with or be separated from the terminal device 100. The terminal device 100 may support 1 or N SIM card interfaces, where N is a positive integer greater than 1. The SIM card interface 195 may support a nano SIM card, a micro SIM card, a SIM card, or the like. Multiple cards may be inserted into the same SIM card interface 195 at the same time, where the multiple cards may be of the same type or different types. The SIM card interface 195 may also be compatible with various types of SIM cards. The SIM card interface 195 may also be compatible with an external memory card. Terminal device 100 communicates with the network via a SIM card to implement functions such as call answering and data transmission. In some embodiments, terminal device 100 accepts an eSIM, that is, an embedded SIM card. The eSIM card may be embedded in terminal device 100 and cannot be separated from terminal device 100.

As shown in FIG. 2, the present application provides a second block diagram of terminal device 100.

The terminal device 100 has a near-field communication (NFC) function and includes an NFC chip 201, a SIM card slot 202 (a SIM card or eSIM card is in the card slot of the board), and an application processor 203. NFC chip associated with various security elements (safe element, SE) to implement the method in the embodiments. For example, the security element SE1 may be configured in SE1 and the security element in SE may also be associated with an application processor. The SE2 security element can be independent of the NFC chip or integrated into the SOC, and the SE3 security element can be configured on the server side.

As shown in FIG. 3, an embodiment of the present application provides a screen projection system comprising a terminal device 100 and a display 200. The terminal device 100 projects display content (including data such as desktop, video, and audio) of the terminal device 100 onto the display 200 using technology wireless projection. The wireless projection technology may be Miracast, DLNA, AirPlay, WIDI, WHDI, Wireless HD, technology over some user protocols such as Bluetooth, Wi-Fi, UWB (Ultra Wide Band), or other near field communication technologies. After the screen projection is completed, the display 200 may display a screen of the terminal device 100, such as a home screen or a video being played.

In some embodiments, the display 200 may display the first window on the screen after the screen projection is completed. The first window is used to display the screen of the terminal device 100 and other controls and the like. can be displayed on the screen in an area outside the first window.

In some embodiments, terminal device 100 may also project a user operation or action onto display 200, including mouse or pointer movement, operations on an application program icon, and the like. For example, the terminal device 100 receives a user operation to launch the first application program, and the terminal device launches the first application program in response to the first operation and displays the first screen of the first application program. Likewise, the above steps and the first screen of the first application may also be displayed on the display screen 200.

In some embodiments, after the terminal device 100 completes the screen projection operation, the display 200 may display the screen of the terminal device 100. Additionally, the terminal device 100 may be used as a touch panel to receive a user switching operation and control the operation of the display 200. Specifically, , after receiving the user switching operation on the terminal device 100, the display 200 may complete the corresponding action. For example, the terminal device 100 receives a touch operation and the display 200 launches the first application program, and the like.

The display in this application comprises conventional large screen displays such as a display screen, a computer screen, and a projector screen, or may be a display screen terminal device such as a mobile phone and a tablet computer. The mainstream large-screen products currently on the market can be classified into four display mode categories: LED displays, plasma displays, liquid crystal displays, and DLP displays. This is not limited to embodiments of the present application.

In general, as shown in FIG. 4, a method is provided for projecting a screen onto a display 200 using the terminal device 100, and the method specifically comprises the following steps.

Step 401: Terminal device 100 enables the wireless projection function.

Specifically, as shown in FIG. 5, the terminal device 100 receives a user operation to enable the wireless projection function, for example, by touching the "wireless projection" control in the status bar. In some possible embodiments, the wireless projection function may alternatively be enabled on the custom settings screen.

As shown in FIG. 6, upon receiving the user's operation to enable the wireless projection function, the terminal device 100 displays the first screen. As shown in FIG. 6, the first screen contains the first pop-up window. The first popup window is used to prompt the user that the wireless projection feature has been enabled. The first popup also contains an option to view help and a "cancel" option. After receiving the user's operation by clicking on the help view option, the terminal device displays a second screen. The second screen contains prompt information, where the prompt is used to prompt the user how to set up the wireless projection, and the prompt information may include video, text, image, and the like. When a user operation is received by clicking on the "cancel" option, the terminal device returns to the home screen or stops displaying the first pop-up window.

In some embodiments, the implementation of the first pop-up window or the first screen may additionally display a list of neighboring applicable devices. It should be understood that after the terminal device receives the screen projection function enable user operation, the terminal device starts scanning neighboring displays that can be used for screen projection. Scanning can be performed using near field communication technologies such as Bluetooth or Wi-Fi. When the scan is successful, a device ID, such as the name of the display device detected by the scan, may be displayed in the first pop-up window or on the first screen.

In some embodiments, in the case where the tag has not previously enabled Bluetooth or the Wi-Fi feature, the tag allows the use of the Bluetooth or Wi-Fi feature in response to the user's operation to enable the screen projection feature.

Step 402: Terminal 100 scans adjacent display 200.

After receiving the operation enabling the wireless projection function, the terminal device 100 starts scanning the adjacent display 200.

Specifically, terminal device 100 may perform a full Wi-Fi channel scan (2.4G and 5G channels) to discover a plurality of neighboring displays. In some embodiments, after performing a full channel scan, tag 100 may further scan only a specific channel, such as channel 1, channel 6, or channel 11.

In some embodiments, the adjacent display 200 may alternatively be discovered using Bluetooth low power BLE technology.

In some embodiments, terminal device 100 sends a request to request scanning of adjacent display 200 on a specific channel.

Step 403: The display 200 listens to the channel.

Specifically, after power-on, the display 200 may listen to the Wi-Fi channel to discover the terminal device 100 or to be discovered.

In some embodiments, when display 200 is initialized (e.g., configured for the first time) and display 200 itself enables the Wi-Fi hotspot function to be configured by remote control 300 or end device 100, where the configuration is used primarily to enable the display connect to a router for networking, the display 200 may not be listening to the Wi-Fi channel.

In some embodiments, the display 200 may alternatively receive a user operation to allow listening on the Wi-Fi channel. For example, the user opens a wizard screen (eg, a Miracast projection screen or a Huawei shared application screen), and the display 200 starts listening to the Wi-Fi channel in response to the user's operation to open the wizard screen. The channel sniff may alternatively be scanned for a specific channel, such as channel 1, channel 6, or channel 11. Scanning a specific channel is faster than scanning the entire band. When terminal device 100 and display 200 are made by the same manufacturer, scanning a specific channel can be used to improve scanning speed and efficiency using the given channel information.

After the scan is successful, i.e., the terminal device 100 detects a nearby acceptable device, a device identifier, such as the name of the display device found by the scan, may be displayed in the first pop-up window or on the first screen.

In some embodiments, the display may alternatively initiate a screen projection scan and the terminal listens on the channel. After the display completes the scan, the display may display a list of neighboring applicable terminals.

Step 404: Display 200 sends back a response message to tag 100.

In some embodiments, after the tag 100 scan request is received by listening on a particular channel, the display 200 sends a scan response to the tag 100.

In some embodiments, the response message may carry identifying information of the display 200, such as device manufacturer, device name, device icon, device ID, and MAC address, for example.

Step 405: Terminal 100 negotiates with display 200.

The terminal device 100 may display the identification information of the display 200 on the first screen or the first pop-up window and receive a user operation on the identification information. Terminal 100 and display 200 perform parameter negotiation or establish a P2P connection.

Step 406: Terminal 100 completes the screen projection operation on display 200.

After the screen projection is completed, the display 200 may display a screen of the terminal device 100, such as a home screen or a video being played.

In some embodiments, the display 200, after the screen projection is completed, may display the first window. The first window is used to display the screen of the terminal device 100 and other controls and the like. may be displayed in an area outside the first window.

In some embodiments, terminal device 100 may also project a user operation onto display 200. For example, terminal device 100 receives a user operation to launch a first application program, and the terminal device launches the first application program in response to the first operation and displays the first screen of the first application program. Likewise, the above steps and the first screen of the first application may also be displayed on the display 200.

In some embodiments, after tag 100 completes the screen projection operation, display 200 may display the screen of tag 100. Additionally, tag 100 may be used as a touch panel to receive a switching operation performed by a user and control the operation of display 200. Specifically, after receiving the user's switch operation on the terminal device 100, the display 200 may complete the corresponding action. For example, the terminal device 100 receives a touch operation and the display 200 launches the first application program, and the like.

As shown in FIG. 6, terminal device 100 displays a list of neighbor acceptable displays, and the device list contains information such as an icon of display 200.

The terminal device 100 receives the user's operation of clicking the icon of the display 200, and in response to the user's operation, the terminal device 100 initiates a screen projection request to negotiate an appropriate screen projection protocol.

It should be noted that the preceding wireless projection procedure may follow a Wi-Fi P2P workflow containing the following steps: device discovery, group coordination, authentication and association, WPS connection process, and four acknowledgments.

Some of the steps 401-406 may be performed in an altered order or simultaneously.

Typically, as shown in FIG. 7, an embodiment of the present application further provides a method for projecting a screen onto the display 200 using the terminal device 100, and the method specifically comprises the following steps.

Step 701: Discovery based on DLNA (Digital Living Network Alliance, abbreviated as DLNA) technology is performed.

The terminal device 100 opens the video to be watched and enables the screen projection function. In this embodiment of the present application, video projection is used as an example. As shown in FIG. 8, the terminal device 100 opens the playback screen of the video application, where the playback screen has the first option and the first option is used to indicate the function of the screen projection, for example, by touching the "wireless projection" control (wireless projection); receives a first operation of the user, such as a click operation, and displays a list of neighboring acceptable devices on the screen; receives a second operation of the user, such as selecting a screen projection device, and projects a video playback screen onto the device selected by the user.

In some embodiments, terminal device 100 displays the first video playback screen, where the screen contains the first option. The playback screen displays a second screen or first window after receiving the user's operation of the first choice, where the second screen or first window contains numerous controls such as those for file transfer, multicast, printing, computer sharing, screen projection, and touch one-touch transfers. The second user operation is received, for example, by selecting a screen projection operation, where the second screen, the first window or the third screen displays a list of neighbor acceptable screen projection devices. The third user operation is received and the terminal device projects the screen onto the device selected by the user.

In response to the user's operation to enable wireless projection control, the terminal device 100 initiates a wireless LAN broadcast scan, that is, the terminal device 100 can initiate a scan of multiple displays on the local network using the LAN. Unlike the screen projection based on the Miracast protocol, the screen projection in this embodiment uses a broadcast transmission based on the DLNA screen projection protocol.

In some embodiments, an image, application, desktop, document, or the like. can also be projected onto a screen.

Step 702: Display 200 sends back a DLNA response.

When tag 100 initiates a broadcast scan of displays on the local network, the display sends back a broadcast response message to tag 100 in response to the broadcast scan. As shown in FIG. 8, when terminal device 100 receives a response message (eg, HUAWEI DISPLAY) from display 200, terminal device 100 displays a list of acceptable screen projection receivers.

Typically, a DLNA capable display sends back a response based on the discovery message of terminal 100.

Step 703: The terminal device 100 sends to the display 200 the address of the playback source.

When displaying a list of acceptable displays on the local network on the screen, the terminal device 100 can accept the user's operation of choice, for example, selecting "HUAWEI DISPLAY" AS THE RECEIVER for screen projection. In response to the user selection operation, the terminal device 100 sends to the display 200 the video playback source address in the video application. In some embodiments, the source address may be sent to the display 200 via a directed broadcast on the local network.

Step 704: The display 200 implements a screen projection function.

The display 200 obtains the video content based on the source address of the playback video sent by the terminal device 100 to implement the screen projection function.

The previous screen projection method requires manual setting by the user and is therefore relatively cumbersome. Screen projection, performed in accordance with the standard protocol, contains a mirror screen projection (Miracast) and applied screen projection (DLNA). For users, the stages of work are many and they take a lot of time.

Based on this, as shown in FIG. 9A, an embodiment of the present application further provides a system in which the terminal device 100 implements a one-touch screen projection function on the display 200 using a remote control 300. The system includes the terminal device 100, the display 200, and the remote control 300 corresponding to the display 200. The remote control has an NFC function or has a built-in NFC tag tag. The remote control is pre-configured using the parameters of the display 200, including information such as a device ID (device name, MAC address, manufacturer information, and the like) and a screen projection parameter.

The specific method is as follows.

Step 901: The terminal device 100 touches the remote control 300 for the first time.

Specifically, when the remote control 300 is touched for the first time, the terminal device 100 obtains the tag content for the NFC tag in the remote control 300. The default content contains identification information of the display 200, such as device name, device type, MAC address information, identification code, and manufacturer.

In some embodiments, the remote control 300 is provided with the display 200 and the manufacturer assigns a unique tag identification code to the NFC tag of the remote control 300.

The terminal device 100 determines, based on whether the tag identification code for the tag has been stored, whether the touch is the first touch. By touching the tag for the tag, the end device obtains information about the tag in the tag for the tag. If the tag identification code for the tag has been stored in the terminal device 100, the touch is not considered as the first touch. Additionally, the terminal device 100 records the tag information in the tag for the tag.

In some embodiments, a tag identification for an NFC tag may be attached to the remote control surface 300 for ease of touch by the user.

In some embodiments, the remote control 300 may power the NFC tag using a battery, or there may be a separate battery to power the NFC tag.

In some embodiments, the terminal device needs to enable the NFC function and the WLAN function.

Step 902: Read the tag information for the tag.

When the terminal device 100 approaches the remote control 300, the terminal device 100 can obtain tag information for the NFC tag, including, but not limited to, device name, device type, MAC address information, identification code, manufacturer information, and other information.

In some embodiments, tag 100 obtains a tag identification code and display 200 information associated with the tag.

In some embodiments, tag 100 switches to reading tag content for an NFC tag when the distance between tag 100 and remote control 300 becomes less than a threshold, a threshold for NFC interaction is reached, or the strength of the NFC signal received by tag 100 is greater than the threshold.

In some embodiments, multiple terminals 100 may all touch remote control 300 such that different terminals 100 implement a screen projection service.

Step 903: P2P scanning is initiated when the terminal device 100 recognizes that the device type in the tag for the NFC tag is the specified device type and the terminal device 100 has not recorded a tag for the tag.

Specifically, at the time of shipment from the factory, the remote control 300 is shipped with the display 200, and the tag for the tag of the remote control 300 stores information about the display 200, such as device type, different device models of the same type, device name, device manufacturer, MAC address, identification code and other information. In an exemplary embodiment, terminal device 100 may specify the device type of display 200 supported, as shown in the following table.

No. Device or display type identification Device type 1 0X11 HUAWEI DISPLAY 2 0X10 APPLE DISPLAY 3 0X11-1 HUAWEI DISPLAY X65

The above table is only an example of the display device types supported by tag 100. When tag 100 receives information about a tag, tag 100 determines, based on the tag information for the tag, that the display 200 corresponding to the tag is a display supported by the tag. device 100.

In some embodiments, the adjacent display 200 may alternatively be discovered using Bluetooth low power BLE technology.

In some embodiments, tag 100 sends a scan request to neighboring display 200 on a specific channel.

In some embodiments, terminal device 100 stores information about the device type of the supported display 200.

Step 904: Terminal 100 receives a response from display 200.

In some embodiments, specifically, the display 200 may listen to the Wi-Fi channel after power-on, ie, in an always-on mode, in order to discover or be discovered by the terminal device 100.

In some embodiments, the wireless projection function of the display 200 requires permission. This can be done using the screen setting or physical button, or on the screen of a projection application.

In some embodiments, when display 200 is initialized (e.g., configured for the first time) and display 200 itself enables the Wi-Fi hotspot function to be configured by remote control 300 or end device 100, where the configuration is used primarily to allow the display to connect with a router for network communication, the display 200 may not listen to the Wi-Fi channel.

In some embodiments, the display 200 may alternatively receive a user operation to allow listening on the Wi-Fi channel. For example, the user opens a wizard screen (eg, a Miracast projection screen or a Huawei shared application screen), and the display 200 starts listening to the Wi-Fi channel in response to the user's operation to open the wizard screen. The channel sniff may alternatively be scanned to obtain a specific channel, such as channel 1, channel 6, or channel 11. Scanning a specific channel is faster than scanning the entire band. When terminal 100 and display 200 are manufactured by the same manufacturer, scanning a particular channel can be used to improve scanning speed and efficiency using the given channel information.

In some embodiments, after a scan request of terminal device 100 is received by listening on a specific channel, display 200 sends a scan response to terminal device 100.

In some embodiments, the NFC area of the mobile phone is required to move closer to the NFC touch area of the remote control and remain in that state until the mobile phone gives an audible prompt or vibrates.

Step 905: Terminal 100 receives the user's operation of choice and sends a P2P connection.

As shown in FIG. 9B, when the terminal device 100 has detected the adjacent display 200 by scanning, the terminal device 100 displays the first pop-up window. The first popup contains a list of nearby acceptable displays. The device list contains the names of the devices, the icons of neighboring devices, and the features supported by the devices. For example, Honor TV supports projection in computer mode and mobile phone mode. For example, Huawei's large screen only supports projection of images, videos, and music. For example, the smart screen only supports projection in mobile phone mode.

The first popup also contains a "view help" option and a "cancel" option. Upon receiving the user's operation by clicking the "view help" option, the terminal device displays a second screen, where the second screen contains prompt information, the prompt is used to prompt the user how to set the wireless projection, and the prompt information may include video, text, image, and the like. Upon receiving the user's operation by clicking on the "cancel" option, the terminal returns to the home screen or stops displaying the first pop-up window.

In some embodiments, the tag 100 receives the user's first operation, such as a click operation on a Huawei large screen. End device 100 initiates a connection to display 200 (Huawei large screen). For example, terminal 100 initiates a connection request.

Step 906: Display 200 receives a connection request from terminal 100.

After the display 200 receives the connection request from the terminal device 100, a second pop-up window or a third screen is opened. The third screen or second pop-up window displays prompt information, and the prompt information is used to prompt the user that the terminal device 100 needs to establish a connection with the screen projection display 200. As shown in FIG. 9C, display 200 displays a second popup, where the second popup further contains a first option (consent) and a second option (ignore). When the display 200 receives the user's operation with the first option, the display 200 establishes a connection with the terminal device 100 for screen projection. When the display 200 receives the user's operation with the second option, the display 200 ignores the request from the tag 100 and stops displaying the second pop-up window or the third screen on the screen.

In some embodiments, display 200 displays a second pop-up window for the initial connection only.

In some embodiments, upon receiving a connection request from terminal device 100, display 200 may directly establish a connection for screen projection without displaying a pop-up window. Establishing a connection without displaying a pop-up window may occur when the display 200 is paired for connection for the first time, or when the terminal device 100 is a device that has previously connected to the display 200.

In some embodiments, as shown in FIG. 9D, when the display 200 receives the user's operation with the first option, the display 200 establishes a screen projection connection with the terminal device 100. The display 200 may further display a third pop-up window. The third pop-up prompts that the terminal device 100 has established a screen projection connection with the display 200.

Step 907: Terminal 100 establishes a connection with display 200.

Step 908: Starting screen projection.

It should be noted that the above steps may be performed in an altered order or skipped.

In some embodiments, after terminal device 100 establishes a screen projection connection with display 200, terminal device 100 may accept a first user operation, such as clicking on "Display Device Operation" in the settings screen or application screen. . That is, the display 200 may be controlled using the terminal device 100. In other words, the terminal device 100 serves as a touch panel for the display 200, which may be understood as an operating mode. Of course, switching between the control mode and the screen projection mode can be performed.

In some embodiments, tag 100 locally stores the P2P MAC address of the successful screen projection display 200 and associates a unique tag identification code for the tag. As shown in the following table, the following mappings are stored in terminal device 100.

No. Tag identification code Display address 1 0X00 12:34:D5 2 0X01 12:34:D6

The above table is only an example of the relationship between a tag for tags and displays that is recorded by the terminal device 100 because the identification code is unique and the display address 200 is also unique. The terminal device can determine the display address based on the identification code information obtained from the tag for the tag to realize the "one-touch screen projection" function. In some embodiments, tag 100 may additionally store a device type and other information that matches a tag for a tag.

In some embodiments, upon receiving the identification information of the display 200 by touching the remote control 300, the terminal device 100 may establish a connection for a screen projection by directly initiating a connection request. The connection request contains the identification information of the display 200 or the identification information of the terminal device 100.

Additionally, if the terminal device 100 is not touching the remote control 300 for the first time, the present application provides a more convenient screen projection method as shown in FIG. 10.

Step 1001: Terminal 100 touches remote control 300.

Step 1002: Terminal 100 obtains tag information for a tag.

In some embodiments, the tag information includes, but is not limited to, information such as device type, different device models of the same type, device name, device manufacturer, MAC address information, and identification code.

In some embodiments, tag 100 switches to read tag content for an NFC tag when the distance between tag 100 and remote control 300 is less than a threshold, when a threshold for NFC interaction is reached, or when the strength of the NFC signal received by tag 100 is greater than a threshold. .

For steps 1001 and 1002, reference may be made to steps 901 and 902.

Step 1003: The terminal device 100 determines if the stored information matches the information on the display 200 detected by the scan.

The tag 100 determines, based on the received tag information for the tag, information such as the device type, MAC address, or identification code of the display 200 paired with the remote control 300 to determine whether the display 200 is the one on which the tag 100 previously performed screen projection.

Step 1004: When terminal 100 determines that the information about display 200 detected by scanning matches the stored information, terminal 100 initiates a P2P connection with display 200.

In some embodiments, when tag 100 determines that the scan-detected display 200 information does not match the stored display information, this means that the current display 200 is connecting to tag 100 for the first time and a process can be performed for the first connection. as shown in FIG. 9A.

Step 1005: Terminal 100 establishes a connection with display 200 and starts screen projection.

For the above steps, reference may be made to FIG. 9A-9D and corresponding text descriptions. Compared to the first screen projection, in the remaining screen projections, the terminal device 100 can perform a paired scan based on the stored archive information. For example, step 1003 or 1004 can be skipped and terminal 100 directly initiates a P2P connection based on the recorded information of display 200.

In the foregoing embodiment, after the terminal device 100 receives information about the remote control tag 300, the terminal device 100 and the display 200 establish a screen projection procedure using the standard Miracast protocol.

Compared with other screen projection solutions, this embodiment of the present application can realize "one-touch screen projection", making screen projection more convenient and improving the efficiency of the screen projection service.

An embodiment of the present application further provides a screen projection method based on the DLNA protocol. As shown in FIG. 11, an embodiment of this application further provides a system in which terminal device 100 implements a "one-touch screen projection" function on display 200 using remote control 300. The system comprises terminal device 100, display 200, and remote control 300 corresponding to display 200. control has an NFC function, or has a built-in tag for the NFC tag. The remote control is pre-configured with display parameters including information such as device ID (device name, MAC address, unique identification code, etc.) and screen projection parameter.

Embodiments of the present application provide new Miracast and DLNA screen projection methods to provide the consumer with a convenient and fashionable way. One-touch screen projection, comprising mirrored screen projection (Miracast) and applied screen projection (DLNA), is implemented using an NFC tag.

Step 1101: Terminal 100 touches remote control 300 for the first time.

Specifically, touching the remote control 300 for the first time, the terminal device 100 obtains the tag content for the tag in the remote control. The default content contains a device identifier of the display 200, such as device name, device type, MAC address information, and an identification code, and the tag for the tag has a unique identification code.

The terminal device 100, based on whether the tag identification code for the tag has been previously stored, determines whether the touch is the first touch. By touching the tag for the tag, the end device obtains information about the tag in the tag for the tag. If the tag identification code for the tag has been previously stored in the terminal device 100, the touch is not considered as the first touch. Additionally, the terminal 100 records the tag information in the tag for the tag.

In some embodiments, a tag identification for a tag may be applied to the remote control surface 300 for ease of touch by the user.

In some embodiments, tag 100 is triggered to read tag content for an NFC tag when the distance between tag 100 and remote control 300 is less than a threshold, when a threshold for NFC interaction is reached, or when the strength of the NFC signal received by tag 100 is greater than the threshold.

Step 1102: Read the tag information for the tag.

Step 1103: Terminal device 100 initiates a DLNA broadcast scan when terminal device 100 recognizes that the device type in the tag is the specified device type and terminal device 100 has not written a tag for the tag to discover display 200.

In some embodiments, as shown in FIG. 8, after the terminal device 100 receives the user's operation to enable the wireless projection function, the terminal device 100 initiates a DLNA broadcast message to scan the adjacent display 200.

Step 1104: Display 200 sends tag 100 a scan response message.

After terminal device 100 receives a scan response message from display 200, terminal device 100 displays information about display 200 in a list of acceptable screen projections, such as information such as device icon and device name.

Step 1105: Terminal 100 initiates a DLNA connection.

Step 1106: Terminal 1106 starts a DLNA screen projection.

An embodiment of the present application further provides a one-touch screen projection operation.

Step 1201: Terminal 100 touches remote control 300.

Specifically, the terminal device 100 may touch the NFC tag of the remote control 300.

Step 1202: Terminal 100 reads tag information for a tag.

Step 1203: Terminal 100 initiates DLNA discovery.

When reading the tag information for a tag, tag 100 determines that display 200 is a display type supported by the tag, and when tag 100 has written the tag, tag 100 automatically initiates DLNA discovery on the display corresponding to the tag for the tag on the local network.

Step 1204: Display 200 sends back a DLNA response.

When the terminal device 100 receives the DLNA response message from the display 200, the terminal device 100 retrieves the stored record to check for a match, for example, by performing a MAC address match.

Step 1205: Terminal 200 initiates a DLNA screen projection function.

Specifically, the terminal device 100 can send to the display 200 the source address of the video to be projected, and the display 200 receives the video content from the network based on the source address and plays it.

As shown in FIG. 13, an embodiment of the present application further provides a graphical user interface. When the terminal device 100 touches the remote control 300, in response to the touch operation when the terminal device 100 has not enabled the WLAN local area network function, a pop-up window is opened to prompt the user whether to enable the WLAN operation. The terminal device 100 may receive a cancel operation or an enable operation from the user. When a user's cancel operation is received, the terminal device 100 closes the pop-up window, preventing the WLAN from functioning or implementing the one-touch screen projection function. When a permission user operation is received, the terminal device 100 automatically enables the WLAN function and executes the screen projection method according to the embodiments of the present application.

As shown in FIG. 14, an embodiment of this application further provides another graphical user interface. When the terminal device 100 performs the "one-touch screen projection" function in response to the pop-up operation of the user in the status bar, the screen projection state prompt of the current terminal device 100 can be displayed, the current display information for the screen projection is displayed on the screen, the function is provided. disconnection and two different screen projection modes: computer mode and mobile phone mode, can also be provided. Specifically, as shown in FIG. 15, the existing screen projection function is to project the content displayed on the terminal device 100 onto the display 200, for example by projecting a desktop. As shown in FIG. 16, when the terminal device receives an operation in which the user has selected the mobile phone mode, the display 200 may perform a computer mode display, and the terminal device 100 may function as a touch pad to move or control the display 200. In some embodiments, after terminal device 100 completes the screen projection operation, the display 200 may display the screen of the terminal device 100. Further, the terminal device 100 may be used as a touch panel to receive a user's operation to switch and control the operation of the display 200. Specifically, after receiving the user's operation to switch to terminal device 100, the display 200 may complete the corresponding action. For example, terminal device 100 receives a click and display 200 launches the first application program, and so on.

As shown in FIG. 17, an embodiment of the present application further provides another graphical user interface. When terminal 100 connects to a display, a graphical user interface may be used to prompt the user and provide a cancel function.

As shown in FIG. 18, an embodiment of the present application may further provide another graphical user interface. When tag 100 fails in screen projection, tag 100 displays a hint box to inform the user of the reasons for the failure, for example, “No matching smart screen was found. Please make sure the device is turned on and WLAN is enabled on your phone."

In some other embodiments, when the screen projection fails, tag 100 may alternatively display another hint box containing the hint information on the screen. The prompt information is used to report a screen projection failure and prompt you to try to restart the smart screen or screen projection function and reconnect, and ensure that the WLAN function of the mobile phone has been allowed. The hint field may additionally contain the first option. Upon receiving a user operation on the first option, terminal 100 may stop displaying the prompt box or screen.

As shown in FIG. 19A, an embodiment of the present application may further provide another graphical user interface. When tag 100 finds a new list of neighbor acceptable displays, tag 100 may display the current status, such as "Searching for Acceptable Devices. Please make sure wireless projection is allowed on a large screen device" and may optionally provide an option such as "cancel" or "see help".

As shown in FIG. 19B, an embodiment of the present application further provides a graphical user interface. When the terminal device 100 projects a screen onto the display 200, the terminal device 100 may display the first prompt information. The information is used to prompt the user that "Projecting in progress.... If you must re-project, disconnect and tap again." The interface further comprises second prompt information. The second prompt information is used to prompt that screen projection preparation is in progress.

As shown in FIG. 20, an embodiment of the present application provides a P2P-based screen projection procedure.

S2001: The P2P device 1 enters the scan step.

Both P2P device 1 and P2P device 2 can both send a probe request frame during the scan phase. P2P device 1 and P2P device 2 can send probe request frames in all the bands they support to search for all surrounding devices or network information. When the P2P device 1 receives a response to the probe request frame after transmitting the probe request frame over the channel, it means that the P2P device 1 has detected the receiving device and the P2P device 1 can display the device information found by scanning to the user on the display screen.

It should also be understood that after power-on or after detecting that the user has clicked on the Miracast application, the P2P device 2 may alternatively enter the scanning step first. In this embodiment of the present application, the P2P device 2, which is a large screen device, is used as an example. The P2P device 2, after the scanning step ends, may enter the listening step. Alternatively, when the P2P device 2 is a large screen device, the scanning step can be skipped and the P2P device 2 enters a listening step for continuous listening after the power is turned on or after the user has clicked on the corresponding P2P application. The large screen device does not need to project its own screen onto the other device, only the other device projects its own screen onto the large screen device. Therefore, the large screen device does not need to detect other devices and therefore may not perform the scanning step but only the listening step.

It should also be understood that if the P2P device 1 does not detect the receiver during the scan step, or the P2P device 1 finds the receiver but does not detect a user click on the receiver, after the end of the scan step, the P2P device 1 may enter the discovery step. The P2P device discovery step 1 may comprise a listen step and a search step.

S2002: The P2P device 1 enters the listening step.

In the listening phase, the P2P protocol also determines how long the device stays in the listening phase and the duration is N times 100 TUs, where N is a random positive integer. For example, N can be any integer 1, 2, and 3. The reason why N being a random positive integer is to prevent P2P device 1 and P2P device 2 from entering the listening stage at the same time and entering the search stage at the same time. after waiting for the same amount of time, during which neither side can process the other side's probe request frame.

S2003: The P2P device 1 1 enters the scanning step to perform a scan of the P2P device, and the P2P device 2 2 remains in the listening step.

For example, as shown in FIG. 20, if the P2P device 1 only supports the 2.4 band, after entering the scan stage, the P2P device 1 can separately send a probe request frame on channel 1, channel 6, and channel 11 only. When the P2P device 1 transmits a probe request frame on channel 6, because P2P device 2 listens on channel 6, after P2P device 2 receives a probe request frame on channel 6, P2P device 2 can send a probe response frame to P2P device 1. After receiving the probe response frame, the P2P device 1 may inform the user of the P2P device 2 information. When the P2P device 1 detects that the user has clicked on the P2P device 2 information, the P2P device 1 can connect with the P2P device 2.

It should be understood that in this embodiment of the present application, a probe request frame sent by one side can only be received by the other side if the two devices are in the same band. Additionally, a probe request frame sent by one side can only be received by the other side when the two devices are in the same band and the frequency channel numbers are the same.

In some embodiments, for the one-touch screen projection P2P connection operation in this application, reference may be made to a previous P2P connection.

As shown in FIG. 21, an embodiment of this application further provides a terminal device 100 comprising a screen projection module, a one-touch screen projection control module, an NFC reader module, a screen projection module, and a database. Specific functions are described in the table.

Module name Description Application layer module Top-level application used to support the completion of the entire function of the DLNA or Miracast application Screen projection control with one touch Parses the content of an NFC tag
Updates NFC tag and large screen database
Switches (Miracast and DLNA) recognition script and determines if the script is supported NFC Reader Reads NFC tag Screen projection module Provides Miracast and DLNA screen projection functions database database Stores the detailed information (MAC) of the large screen for non-first-time automatic screen projection with the unique value of the NFC tag as the key value

In some embodiments, prior functional modules may complete the screen projection function along with the application processor, NFC chip, and memory.

As shown in FIG. 22, an embodiment of the present application further provides a one-touch screen projection function implemented by a predetermined MAC address.

The NFC tag is placed inside the remote control 300 supplied with the display 200 (or "large screen device"), and the MAC address and identification information of the large screen device are pre-recorded in the tag. By touching the remote control 300, the terminal device 100 can read the content of the tag and, after identifying the large screen device, directly initiate a screen projection procedure to the device with the read MAC address. The specific steps for this are given below.

Step 2201: Terminal 100 touches the NFC tag.

The NFC tag contains the MAC address of the corresponding display. The MAC address may be the MAC address of the P2P connection, and may be generated arbitrarily.

Step 2202: Terminal 100 obtains tag information for a tag.

Step 2203: Initiate a connection based on the tag information, a screen projection based on the assigned channel or MAC address.

Step 2204: A response message is received from the display 200.

Step 2205: A P2P connection is established and the Miracast protocol is negotiated.

As shown in FIG. 23, an embodiment of the present application further provides a one-touch screen projection function implemented using a given MAC address.

The NFC tag is placed inside the remote control of the large screen device and the STA MAC, and the identification information of the large screen device is pre-recorded in the tag. After the mobile phone touches the remote control, reads the content of the tag, and identifies the large screen device, it directly initiates the screen projection procedure to the device with the read MAC address. The specific method is as follows.

Step 2301: Terminal 100 touches the NFC tag.

The NFC tag contains the MAC address of the corresponding display. The MAC address may be the MAC address of the P2P connection and may be generated arbitrarily.

Step 2302: Terminal 100 receives tag information for a tag.

Step 2303: Terminal 100 initiates DLNA capability discovery.

Specifically, the terminal device 100 determines that the display 200 is a supported display type based on the tag information. In addition, the terminal device 100 is currently running a video playback application, and the video playback application has DLNA capabilities. Thus, the DLNA priority application initiates the DLNA procedure.

Step 2304: The display 200 sends a DLNA capability response.

Step 2305: Terminal 100 determines that display 200 is a recorded device and initiates a DLNA procedure.

The terminal device 100 may determine the display 200 based on the MAC address of the STA or on the NFC tag. The terminal device 100 sends the source address of the video content to the display 200, and the display 200 receives video content from the network based on the source address to realize screen projection.

An embodiment of the present application further provides remote control using the NFC function. The remote control contains a controller and a memory. The memory stores the command. When the command is executed, the remote control may execute the method in the embodiments of the present application.

In some embodiments, the foregoing method may alternatively be performed by an NFC chip. In some embodiments, the implementation of the remote control stores information associated with its display.

An embodiment of the present application further comprises a display. The display contains a memory, a display, and a controller. The memory stores the command. When the command is executed, the remote control may perform the method in the embodiments of the present application.

The display may further comprise a Bluetooth chip or a Wi-Fi chip.

It should be understood that for brevity, the descriptions of the embodiments provided herein focus on emphasizing the difference between the embodiments. Therefore, unless the description explicitly states or follows from the context, the embodiments may refer to each other here.

One skilled in the art may be aware that the steps and blocks of the method described in the embodiments disclosed herein may be implemented in electronic hardware, software, or a combination thereof. In order to clearly describe the possibility of interchangeability between hardware and software, the foregoing has generally described steps and combinations of embodiments by function. Whether the functions are performed by hardware or software depends on specific applications and design constraints of the technical solutions. A person skilled in the art can use various methods to implement the described functions for each particular application, but the embodiments should not be considered to be outside the protection scope of the present application.

The person skilled in the art can clearly understand that for simplicity and brevity of description for certain operating processes of the system, device and unit described above, reference can be made to the corresponding processes in the previous embodiments of the method. The details are not re-described here.

In several embodiments presented in this application, it should be understood that the disclosed system, device and method can be implemented in other ways. For example, the device embodiments described are merely examples. For example, division into blocks is simply a division into logical functions and, in actual implementation, may be a different division. For example, a plurality of blocks or components may be combined or integrated into another system, or some features may be ignored or may not be implemented. In addition, screened or discussed interconnections or direct connections or bonded connections can be implemented using some interfaces. Indirect links or interconnected connections between devices or blocks can be implemented in electrical, mechanical or other forms.

Blocks described as separate parts may or may not be physically separate, and parts displayed as blocks may or may not be physical blocks and may be located in the same location or may be distributed across multiple network elements. Some or all of the blocks may be selected depending on actual requirements in order to achieve the goals of the decisions in the embodiments in this application.

In addition, the functional blocks in the embodiments of the present application may be integrated into a single processor, or each of the blocks may exist physically alone, or two or more blocks may be integrated into one block. The integrated block may be implemented in the form of hardware or may be implemented in the form of a software functional block.

When an integrated block is implemented in the form of a software functional block and sold or used as a standalone product, the integrated block may be stored on a computer-readable medium. Based on this understanding, the technical solutions of the present application, substantially or partially contributing to the development of the prior art, or all or some of the technical solutions may be implemented in the form of a software product. The computer program product is stored on a storage medium and contains several instructions for transmitting them to a computing device (which may be a personal computer, a server, a network device, etc.) to perform all or some of the steps of the methods described in the embodiments of the present application. The above media is any media that can store a control program, such as a USB flash memory card, removable hard disk, read-only memory (ROM), random access memory (RAM), magnetic disc or optical disc.

The above descriptions are merely embodiments of the present application, but are not intended to limit the protection scope of the present application. Any variation or replacement readily suggested by a person skilled in the art disclosed in this application should be within the protection scope of this application. Therefore, the scope of protection of the present application should be subordinated to the scope of protection of the claims.

Claims (46)

1. A screen projection method implemented in a screen projection system, comprising a remote control, a terminal device and a display, comprising the steps of: obtaining, by the terminal device, when the terminal device touches the remote control NFC tag, NFC tag content, the NFC tag content including an NFC tag identification code; display, by the terminal device, when the terminal device does not have a tag entry, the first pop-up window, and the tag entry includes an identification code, the first pop-up window includes a list of displays containing the first option, the first option includes the name of the device for display; receiving, by the terminal, a first user operation on the first option; establish, using the terminal device, in response to the first operation, the first connection of the screen projection with the display; storing, by the terminal device, an appropriate relationship between the identification code and the display information; setting, by the terminal device, when the terminal device has a tag record, a second screen projection connection with the display corresponding to the identification code, in accordance with the identification code. 2. Terminal device containing one or more displays one or more storage devices, and one or more processors; wherein one or more information storage devices stores one or more programs that, when executed, cause the terminal device to perform operations on which: obtaining, when the terminal device touches the remote control NFC tag, the content of the first NFC tag, the content of the first NFC tag including an identification code of the first NFC tag; displaying, when the terminal device does not have a tag entry, a first popup, the tag entry including an identification code of the first NFC tag, the first popup including a list of displays containing a first option, the first option including a device name for display; receiving a first user operation on the first option; establish, in response to the first operation, the first connection of the screen projection with the first display; maintaining an appropriate relationship between the identification code of the first NFC tag and the first display information; set, when the terminal device has the first tag entry, the second screen projection connection with the corresponding first display, in accordance with the identification code of the first NFC tag. 3. The terminal according to claim 2, wherein the first tag entry further contains a match. 4. The terminal device according to claim. 2, in which the content of the first NFC tag further contains the type of the first device; and the terminal device is further configured to, after receiving the content of the first NFC tag: determining, according to the type of the first device, that the first display is a display corresponding to the type of the first device. 5. The terminal device according to claim 4, characterized in that it is additionally configured, after receiving the type of the first device and before displaying the first pop-up window: scanning the first display. 6. The terminal device according to claim 4, wherein the first list of displays contains only displays corresponding to the type of the first device. 7. The terminal device according to claim 2, characterized in that after the terminal device establishes the connection of the first screen projection with the first display device, it is additionally configured to: performing synchronous display of the first interface by the terminal device and the first display; A after the terminal device establishes connection of the second screen projection with the first display device, it is additionally configured to: performing synchronous display of the second interface by the terminal device and the first display. 8. Terminal device according to claim. 2, characterized in that the terminal device is configured to maintain compliance after receiving the first user operation on the first option. 9. The terminal device according to claim 2, characterized in that it is configured to: receiving, when the terminal device touches the second NFC tag of the second remote control, the content of the second NFC tag, and the content of the second NFC tag includes an identification code of the second NFC tag; display, when the terminal device does not have a second tag entry, a third popup, the second tag entry includes an identification code of the second NFC tag, the third popup includes a list of displays containing the second option, the second option includes the title devices for the second display; receiving a third user operation on the second option; setting, in response to the third operation, the third connection of the screen projection with the second display; maintaining a correspondence between the identification code of the second NFC tag and information about the second display; setting, when the terminal device has the second tag record, the fourth screen projection connection with the corresponding display according to the identification code of the second NFC tag. 10. The terminal device according to claim 2, characterized in that it is configured, when the Bluetooth function and the WLAN function of the terminal device are disabled: to turn on the Bluetooth function and the WLAN function. 11. The terminal device according to claim 2, wherein the first list of displays is obtained by scanning in accordance with Bluetooth technology or Wi-Fi technology. 12. The terminal device according to claim 2, characterized in that it is configured, when establishing the first screen projection connection or the second screen projection connection with the first display: to provide a cancel function. 13. The terminal device according to claim 2, characterized in that, after establishing the first screen projection connection or the second screen projection connection with the first display: receiving a third user operation to open the first application; synchronously displaying, in response to the third user operation, the terminal device and the first display, the third interface of the first application. 14. The terminal device according to claim 2, characterized in that it is made with the possibility, after interruption of the screen projection between the terminal device and the first display: displaying a fifth popup window, the fifth popup window being used to alert the user that the connection is being terminated. 15. The terminal device according to claim 2, characterized in that, when the terminal device touches the first remote control NFC tag, display hint information that the screen will be projected. 16. The terminal device according to claim 2, characterized in that it is configured to alert when the terminal device touches the first remote control NFC tag, a sound signal or vibration.

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