CN113448382A

CN113448382A - Multi-screen display electronic device and multi-screen display method of electronic device

Info

Publication number: CN113448382A
Application number: CN202010227614.9A
Authority: CN
Inventors: 朱笠; 杨向阳
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2020-03-27
Filing date: 2020-03-27
Publication date: 2021-09-28
Anticipated expiration: 2040-03-27
Also published as: CN113448382B; WO2021190344A1

Abstract

The application discloses a multi-screen display electronic device, a multi-screen display method of the electronic device, a multi-screen display mobile terminal and a multi-screen display method of the mobile terminal. Wherein, multi-screen display electronic equipment includes: the device comprises a memory and a processor, wherein the processor comprises an application processor, the application processor comprises a display interface and at least one display conversion interface, and the number of the display conversion interfaces is less than that of screens of the electronic equipment; the display switching device comprises a switch and a display switching chip, wherein the switch is used for switching the display switching interface to a screen for display, or selecting a switching object of the display interface, the switching object of the display interface comprises the display interface and the display switching chip, and the display switching chip is used for converting display interface data into protocol interface data and realizing screen display according to the protocol interface data. The multi-screen display electronic equipment can realize simultaneous display of multiple screens of the electronic equipment.

Description

Multi-screen display electronic device and multi-screen display method of electronic device

[ technical field ] A method for producing a semiconductor device

The present disclosure relates to the field of screen display technologies, and in particular, to a multi-screen display electronic device and a multi-screen display method for the electronic device.

[ background of the invention ]

When the current intelligent terminal product needs to display simultaneously such as internal and external screens, the limited number of screen displays can be realized usually due to the display limitation of the number of the display conversion ports of the processor. In this case, the multiple screens of the smart terminal product cannot be displayed simultaneously.

[ summary of the invention ]

In view of this, embodiments of the present application provide a multi-screen display electronic device, a multi-screen display method of an electronic device, a multi-screen display mobile terminal, and a multi-screen display method of a mobile terminal, so as to solve a problem that multiple screens of an electronic device cannot be displayed simultaneously.

In a first aspect, an embodiment of the present application provides a multi-screen display electronic device, including:

the device comprises a memory and a processor, wherein the processor comprises an application processor, the application processor comprises a display interface and at least one display conversion interface, and the number of the display conversion interfaces is less than that of screens of the electronic equipment;

the display switching device comprises a switch and a display switching chip, wherein the switch is used for switching the display switching interface to a screen for display, or selecting a switching object of the display interface, the switching object of the display interface comprises the display interface and the display switching chip, and the display switching chip is used for converting display interface data into protocol interface data and realizing screen display according to the protocol interface data.

The above aspects and any possible implementations further provide an implementation, and the display interface includes, but is not limited to, a DP interface.

The above aspects and any possible implementations further provide an implementation where the display conversion interface includes, but is not limited to, a DPHY interface.

The above aspects and any possible implementations further provide an implementation where the switches include, but are not limited to, high speed switches, and the number of switches is the same as the number of display conversion interfaces.

The above aspects and any possible implementation manners further provide an implementation manner, and the display switching chip includes, but is not limited to, a DP2MIPI chip.

The above aspects and any possible implementations further provide an implementation where the display interface data includes, but is not limited to, DP data.

The above-described aspects and any possible implementations further provide an implementation in which the protocol interface data includes, but is not limited to, MIPI data.

The above-described aspect and any possible implementation manner further provide an implementation manner, and the electronic device further includes a display port, and the display port is applied to a display interface, and the display port is also applied to interfaces of other types.

There is further provided in accordance with the above-described aspect and any possible implementation, an implementation in which the displayport includes, but is not limited to, a DP/USB port to which a DP/USB interface is applied.

The above-described aspect and any possible implementation manner further provide an implementation manner, where the screen of the electronic device includes an inner screen and an outer screen, where the inner screen includes at least one sub-screen, and the outer screen includes at least one sub-screen.

In a second aspect, an embodiment of the present application provides a multi-screen display method for an electronic device, including:

when the screen display of the electronic equipment meets the display requirement, the multi-screen display of the electronic equipment is realized by utilizing the display conversion interface;

when the screen display of the electronic equipment does not meet the display requirement, the screen is displayed by using the display conversion interface, the conversion object of the display interface is converted into the display conversion chip by using the switch, the display interface data is converted into the protocol interface data according to the display conversion chip, and the multi-screen display is realized according to the protocol interface data, wherein the electronic equipment is the electronic equipment in the first aspect.

In a third aspect, an embodiment of the present application provides a multi-screen display mobile terminal, including:

the mobile terminal comprises a memory and a processor, wherein the processor comprises an application processor, the application processor comprises a display interface and at least one display conversion interface, and the number of the display conversion interfaces is less than that of screens of the mobile terminal;

The above-mentioned aspects and any possible implementation manner further provide an implementation manner, and the mobile terminal further includes a display port, where the display port is applied to a display interface, and the display port is also applied to interfaces of other types.

The above-described aspects and any possible implementation further provide an implementation, where the mobile terminal is a foldable mobile terminal, and includes an inner screen and an outer screen.

The above-mentioned aspect and any possible implementation manner further provide an implementation manner, where the internal screen of the mobile terminal includes two sub-screens, the external screen of the mobile terminal is one screen, and the mobile terminal includes two display conversion interfaces and one display interface.

In a fourth aspect, an embodiment of the present application provides a multi-screen display method for a mobile terminal, including:

when the screen display of the mobile terminal meets the display requirement, the multi-screen display of the mobile terminal is realized by utilizing the display conversion interface;

when the screen display of the mobile terminal does not meet the display requirement, displaying the screen by using the display conversion interface, switching a conversion object of the display interface into a display switching chip by using the switch, converting the display interface data into protocol interface data according to the display switching chip, and realizing multi-screen display according to the protocol interface data, wherein the mobile terminal is the mobile terminal of the third aspect.

The foregoing aspects and any possible implementations further provide an implementation, where the mobile terminal is a foldable mobile terminal and includes an inner screen and an outer screen, where the inner screen of the mobile terminal includes two sub-screens, the outer screen of the mobile terminal is a screen, the mobile terminal includes two display conversion interfaces and one display interface, and the number of the switches is two, and when the screen display of the mobile terminal meets the display requirement, the multi-screen display of the mobile terminal is implemented by using the display conversion interfaces, including:

when the mobile terminal is used by the external screen and the internal screen is not used, the multi-screen display of the mobile terminal is realized by utilizing the display conversion interface and the switch;

and when the mobile terminal is used in the inner screen and the outer screen is not used, the multi-screen display of the mobile terminal is realized by utilizing the display conversion interface and the switch.

The foregoing aspects and any possible implementations further provide an implementation, where the mobile terminal is a foldable mobile terminal and includes an inner screen and an outer screen, the inner screen of the mobile terminal includes two sub-screens, the outer screen of the mobile terminal is a screen, the mobile terminal includes two display conversion interfaces and one display interface, and the number of switches is two, and when the screen display of the mobile terminal does not meet the display requirement, the display conversion interfaces are used to display the screen, and a conversion object of the display interfaces is switched to a display switching chip by the switches, and the display switching chip converts the display interface data into protocol interface data according to the protocol interface data, and implements multi-screen display according to the protocol interface data, including:

when the mobile terminal is used in both the inner screen and the outer screen, the screen is displayed by using the display conversion interface and the switch, the conversion object of the display interface is switched into the display switching chip by using the switch, the display interface data is converted into protocol interface data according to the display switching chip, and multi-screen display is realized according to the protocol interface data.

In a fifth aspect, an embodiment of the present application provides a multi-screen display electronic device, where a data processing module of a screen of the electronic device includes a static RAM, and the multi-screen display electronic device includes:

the processor comprises an application processor, a memory and a processor, wherein the application processor comprises a digital signal microprocessor, an interface selection switch, a display conversion interface and a signal feedback pin, the number of the display conversion interfaces is less than that of screens of electronic equipment, and the interface selection switch is used for switching data output by the digital signal microprocessor to the display conversion interface;

the display adapter switch is used for switching signals of an output object of the display conversion interface and realizing screen display according to data output by the display conversion interface, the data selector is used for switching signals of output signals fed back by the screen signal feedback pin and sending the switched output signals to the signal feedback pin of the application processor, so that the signal feedback pin indicates the application processor to output data to the screen again.

The above-described aspects and any possible implementation further provide an implementation in which the display conversion interface is a DSI interface.

The above aspect and any possible implementation manner further provide an implementation manner, and the signal feedback pin and the screen signal feedback pin are TE pins.

The above-mentioned aspects and any possible implementation manners further provide an implementation manner, where the data output by the display conversion interface is MIPI data, and the type of the display transfer switch is an MIPI display transfer switch, and the display transfer switch is used to switch a signal of an output object of the display conversion interface and send the MIPI data to a screen for determining switching.

There is further provided in accordance with the above-described aspect and any possible implementation, an implementation in which the application processor further includes a display interface, including but not limited to a DP interface.

The above aspects and any possible implementations further provide an implementation in which the screen of the electronic device includes an inner screen and an outer screen.

In a sixth aspect, an embodiment of the present application provides a multi-screen display method for an electronic device, including:

the interface selection switch is adopted to transfer the data output by the digital signal microprocessor to the display conversion interface;

if the transmission channel of the display conversion interface does not have a display transfer switch, screen display is realized according to the data output by the display conversion interface;

if a display transfer switch exists on a transmission channel of a display conversion interface, switching a signal of an output object of the display conversion interface by using the display transfer switch based on a display requirement, sending data output by the display conversion interface to a screen which determines switching, and realizing screen display according to the data output by the display conversion interface, wherein in the process of screen display, a data selector is used for carrying out signal switching on an output signal fed back by a screen signal feedback pin, and the switched output signal is sent to a signal feedback pin of an application processor, so that the signal feedback pin indicates the application processor to output data to the screen again.

In this application embodiment, when a plurality of screens of the electronic device cannot be displayed simultaneously, the display interface of the application processor is fully utilized, and by adding the switch and the display switching chip, on the premise that the display switching interface is utilized to display the screen, the switch is utilized to switch the switching object of the display interface into the display switching chip, through the display switching chip, the display interface data is converted into the protocol interface data, and according to the protocol interface data, multi-screen display is realized, and multi-screen simultaneous display of the electronic device can be realized under the condition that the functions of the display interfaces are reserved.

[ description of the drawings ]

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.

Fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present application;

fig. 2 is a block diagram of a software structure of an electronic device according to an embodiment of the present application;

FIG. 3 is a block diagram illustrating an architecture of a multi-screen display according to an embodiment of the present application;

FIG. 4 is a block diagram of an architecture of a multi-screen display electronic device according to an embodiment of the present application;

FIG. 5 is a diagram illustrating an architecture of a multi-screen display electronic device according to an embodiment of the present application;

FIG. 6 is a schematic diagram of a multi-screen display electronic device at an output signal feedback level according to an embodiment of the present application;

fig. 7 is a flowchart illustrating a multi-screen display electronic device to achieve simultaneous multi-screen display according to an embodiment of the present application.

[ detailed description ] embodiments

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. In the description of the embodiments herein, "/" means "or" unless otherwise specified, for example, a/B may mean a or B; "and/or" herein is merely an association describing an associated object, and means that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone.

In the following, the terms "first", "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present application, "a plurality" means two or more unless otherwise specified.

In the embodiments of the present application, words such as "exemplary" or "for example" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g.," is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.

Fig. 1 shows a schematic structural diagram of an electronic device 100.

The electronic device 100 may include a processor 110, an external memory interface 120, an internal memory 121, a Universal Serial Bus (USB) interface 130, a charging management module 140, a power management module 141, a battery 142, an antenna 1, an antenna 2, a mobile communication module 150, a wireless communication module 160, an audio module 170, a speaker 170A, a receiver 170B, a microphone 170C, an earphone interface 170D, a sensor module 180, a key 190, a motor 191, an indicator 192, a camera 193, a display screen 194, a Subscriber Identification Module (SIM) card interface 195, and the like. The sensor module 180 may include a pressure sensor 180A, a gyroscope sensor 180B, an air pressure sensor 180C, a magnetic sensor 180D, an acceleration sensor 180E, a distance sensor 180F, a proximity light sensor 180G, a fingerprint sensor 180H, a temperature sensor 180J, a touch sensor 180K, an ambient light sensor 180L, a bone conduction sensor 180M, and the like.

It is to be understood that the illustrated structure of the embodiment of the present application does not specifically limit the electronic device 100. In other embodiments of the present application, electronic device 100 may include more or fewer components than shown, or some components may be combined, some components may be split, or a different arrangement of components. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

Processor 110 may include one or more processing units, such as: the 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), a baseband processor, and/or a neural-Network Processing Unit (NPU), etc. The different processing units may be separate devices or may be integrated into one or more processors.

The controller can generate an operation control signal according to the instruction operation code and the timing signal to complete the control of instruction fetching and instruction execution.

A memory may also be provided in processor 110 for storing instructions and data. In some embodiments, the memory in the processor 110 is a cache memory. The memory may hold instructions or data that have just been used or recycled by the processor 110. If the processor 110 needs to reuse the instruction or data, it can be called directly from the memory. Avoiding repeated accesses reduces the latency of the processor 110, thereby increasing the efficiency of the system.

In some embodiments, processor 110 may include one or more interfaces. The interface may include an integrated circuit (I2C) interface, an integrated circuit built-in audio (I2S) interface, a Pulse Code Modulation (PCM) interface, a universal asynchronous receiver/transmitter (UART) interface, a Mobile Industry Processor Interface (MIPI), a general-purpose input/output (GPIO) interface, a Subscriber Identity Module (SIM) interface, and/or a Universal Serial Bus (USB) interface, etc.

The I2C interface is a bi-directional synchronous serial bus that includes a serial data line (SDA) and a Serial Clock Line (SCL). In some embodiments, processor 110 may include multiple sets of I2C buses. The processor 110 may be coupled to the touch sensor 180K, the charger, the flash, the camera 193, etc. through different I2C bus interfaces, respectively. For example: the processor 110 may be coupled to the touch sensor 180K via an I2C interface, such that the processor 110 and the touch sensor 180K communicate via an I2C bus interface to implement the touch functionality of the electronic device 100.

The I2S interface may be used for audio communication. In some embodiments, processor 110 may include multiple sets of I2S buses. The processor 110 may be coupled to the audio module 170 via an I2S bus to enable communication between the processor 110 and the audio module 170. In some embodiments, the audio module 170 may communicate audio signals to the wireless communication module 160 via the I2S interface, enabling answering of calls via a bluetooth headset.

The PCM interface may also be used for audio communication, sampling, quantizing and encoding analog signals. In some embodiments, the audio module 170 and the wireless communication module 160 may be coupled by a PCM bus interface. In some embodiments, the audio module 170 may also transmit audio signals to the wireless communication module 160 through the PCM interface, so as to implement a function of answering a call through a bluetooth headset. Both the I2S interface and the PCM interface may be used for audio communication.

The UART interface is a universal serial data bus used for asynchronous communications. The bus may be a bidirectional communication bus. It converts the data to be transmitted between serial communication and parallel communication. In some embodiments, a UART interface is generally used to connect the processor 110 with the wireless communication module 160. For example: the processor 110 communicates with a bluetooth module in the wireless communication module 160 through a UART interface to implement a bluetooth function. In some embodiments, the audio module 170 may transmit the audio signal to the wireless communication module 160 through a UART interface, so as to realize the function of playing music through a bluetooth headset.

MIPI interfaces may be used to connect processor 110 with peripheral devices such as display screen 194, camera 193, and the like. The MIPI interface includes a Camera Serial Interface (CSI), a Display Serial Interface (DSI), and the like. In some embodiments, processor 110 and camera 193 communicate through a CSI interface to implement the capture functionality of electronic device 100. The processor 110 and the display screen 194 communicate through the DSI interface to implement the display function of the electronic device 100.

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

The USB interface 130 is an interface conforming to the USB standard specification, and may specifically be a Mini USB interface, a Micro USB interface, a USB Type C interface, or the like. The USB interface 130 may be used to connect a charger to charge the electronic device 100, and may also be used to transmit data between the electronic device 100 and a peripheral device. And the earphone can also be used for connecting an earphone and playing audio through the earphone. The interface may also be used to connect other electronic devices, such as AR devices and the like.

It should be understood that the interface connection relationship between the modules illustrated in the embodiments of the present application is only an illustration, and does not limit the structure of the electronic device 100. In other embodiments of the present application, the electronic device 100 may also adopt different interface connection manners or a combination of multiple interface connection manners in the above embodiments.

The charging management module 140 is configured to receive charging input from a charger. The charger may be a wireless charger or a wired charger. In some wired charging embodiments, the charging management module 140 may receive charging input from a wired charger via the USB interface 130. In some wireless charging embodiments, the charging management module 140 may receive a wireless charging input through a wireless charging coil of the electronic device 100. The charging management module 140 may also supply power to the electronic device through the power management module 141 while charging the battery 142.

The power management module 141 is used to connect the battery 142, the charging management module 140 and the processor 110. The power management module 141 receives input from the battery 142 and/or the charge management module 140, and supplies power to the processor 110, the internal memory 121, the display 194, the camera 193, the wireless communication module 160, and the like. The power management module 141 may also be used to monitor parameters such as battery capacity, battery cycle count, battery state of health (leakage, impedance), etc. In some other embodiments, the power management module 141 may also be disposed in the processor 110. In other embodiments, the power management module 141 and the charging management module 140 may be disposed in the same device.

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

The antennas 1 and 2 are used for transmitting and receiving electromagnetic wave signals. Each antenna in the electronic device 100 may be used to cover a single or multiple communication bands. Different antennas can also be multiplexed to improve the utilization of the antennas. For example: the antenna 1 may be multiplexed as a diversity antenna of a wireless local area network. In other embodiments, the antenna may be used in conjunction with a tuning switch.

The mobile communication module 150 may provide a solution including 2G/3G/4G/5G wireless communication applied to the electronic device 100. The mobile communication module 150 may include at least one filter, a switch, a power amplifier, a Low Noise Amplifier (LNA), and the like. The mobile communication module 150 may receive the electromagnetic wave from the antenna 1, filter, amplify, etc. the received electromagnetic wave, and transmit the 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 the signal into electromagnetic wave through the antenna 1 to radiate the electromagnetic wave. In some embodiments, at least some of the functional modules of the mobile communication module 150 may be disposed in the processor 110. In some embodiments, at least some of the functional modules of the mobile communication module 150 may be disposed in the same device as at least some of the modules of the processor 110.

The modem processor may include a modulator and a demodulator. The modulator is used for modulating a low-frequency baseband signal to be transmitted into a medium-high frequency signal. The demodulator is used for demodulating the received electromagnetic wave signal into a low-frequency baseband signal. The demodulator then passes the demodulated low frequency baseband signal to a baseband processor for processing. The low frequency baseband signal is processed by the baseband processor and then transferred to the application processor. The application processor outputs a sound signal through an audio device (not limited to the speaker 170A, the receiver 170B, etc.) or displays an image or video through the display screen 194. In some embodiments, the modem processor may be a stand-alone device. In other embodiments, the modem processor may be provided in the same device as the mobile communication module 150 or other functional modules, independent of the processor 110.

The wireless communication module 160 may provide a solution for wireless communication applied to the electronic device 100, including Wireless Local Area Networks (WLANs) (e.g., wireless fidelity (Wi-Fi) networks), bluetooth (bluetooth, BT), Global Navigation Satellite System (GNSS), Frequency Modulation (FM), Near Field Communication (NFC), Infrared (IR), and the like. The wireless communication module 160 may be one or more devices integrating at least one communication processing module. The wireless communication module 160 receives electromagnetic waves via the antenna 2, performs frequency modulation and filtering processing on electromagnetic wave signals, and transmits the processed signals to the processor 110. The wireless communication module 160 may also receive a signal to be transmitted from the processor 110, perform frequency modulation and amplification on the signal, and convert the signal into electromagnetic waves through the antenna 2 to radiate the electromagnetic waves.

In some embodiments, antenna 1 of electronic device 100 is coupled to mobile communication module 150 and antenna 2 is coupled to wireless communication module 160 so that electronic device 100 can communicate with networks and other devices through wireless communication techniques. The wireless communication technology may include global system for mobile communications (GSM), General Packet Radio Service (GPRS), code division multiple access (code division multiple access, CDMA), Wideband Code Division Multiple Access (WCDMA), time-division code division multiple access (time-division code division multiple access, TD-SCDMA), Long Term Evolution (LTE), LTE, BT, GNSS, WLAN, NFC, FM, and/or IR technologies, etc. The GNSS may include a Global Positioning System (GPS), a global navigation satellite system (GLONASS), a beidou navigation satellite system (BDS), a quasi-zenith satellite system (QZSS), and/or a Satellite Based Augmentation System (SBAS).

The electronic device 100 implements display functions via the GPU, the display screen 194, and the application processor. The GPU is a microprocessor for image processing, and is connected to the display screen 194 and an application processor. The GPU is used to perform mathematical and geometric calculations for graphics rendering. The processor 110 may include one or more GPUs that execute program instructions to generate or alter display information.

The display screen 194 is used to display images, video, and the like. The display screen 194 includes a display panel. The display panel may adopt a Liquid Crystal Display (LCD), an organic light-emitting diode (OLED), an active-matrix organic light-emitting diode (active-matrix organic light-emitting diode, AMOLED), a flexible light-emitting diode (FLED), a miniature, a Micro-oeld, a quantum dot light-emitting diode (QLED), and the like. In some embodiments, the electronic device 100 may include 1 or N display screens 194, with N being a positive integer greater than 1.

The electronic device 100 may implement a shooting function through the ISP, the camera 193, the video codec, the GPU, the display 194, the application processor, and the like.

The ISP is used to process the data fed back by the camera 193. For example, when a photo is taken, the shutter is opened, light is transmitted to the camera photosensitive element through the lens, the optical signal is converted into an electrical signal, and the camera photosensitive element transmits the electrical signal to the ISP for processing and converting into an image visible to naked eyes. The ISP can also carry out algorithm optimization on the noise, brightness and skin color of the image. The ISP can also optimize parameters such as exposure, color temperature and the like of a shooting scene. In some embodiments, the ISP may be provided in camera 193.

The camera 193 is used to capture still images or video. The object generates an optical image through the lens and projects the optical image to the photosensitive element. The photosensitive element may be a Charge Coupled Device (CCD) or a complementary metal-oxide-semiconductor (CMOS) phototransistor. The light sensing element converts the optical signal into an electrical signal, which is then passed to the ISP where it is converted into a digital image signal. And the ISP outputs the digital image signal to the DSP for processing. The DSP converts the digital image signal into image signal in standard RGB, YUV and other formats. In some embodiments, the electronic device 100 may include 1 or N cameras 193, N being a positive integer greater than 1.

The digital signal processor is used for processing digital signals, and can process digital image signals and other digital signals. For example, when the electronic device 100 selects a frequency bin, the digital signal processor is used to perform fourier transform or the like on the frequency bin energy.

Video codecs are used to compress or decompress digital video. The electronic device 100 may support one or more video codecs. In this way, the electronic device 100 may play or record video in a variety of encoding formats, such as: moving Picture Experts Group (MPEG) 1, MPEG2, MPEG3, MPEG4, and the like.

The NPU is a neural-network (NN) computing processor that processes input information quickly by using a biological neural network structure, for example, by using a transfer mode between neurons of a human brain, and can also learn by itself continuously. Applications such as intelligent recognition of the electronic device 100 can be realized through the NPU, for example: image recognition, face recognition, speech recognition, text understanding, and the like.

The external memory interface 120 may be used to connect an external memory card, such as a Micro SD card, to extend the memory capability of the electronic device 100. The external memory card communicates with the processor 110 through the external memory interface 120 to implement a data storage function. For example, files such as music, video, etc. are saved in an external memory card.

The internal memory 121 may be used to store computer-executable program code, which includes instructions. The internal memory 121 may include a program storage area and a data storage area. The storage program area may store an operating system, an application program (such as a sound playing function, an image playing function, etc.) required by at least one function, and the like. The storage data area may store data (such as audio data, phone book, etc.) created during use of the electronic device 100, and the like. In addition, the internal memory 121 may include a high-speed random access memory, and may further include a nonvolatile memory, such as at least one magnetic disk storage device, a flash memory device, a universal flash memory (UFS), and the like. The processor 110 executes various functional applications of the electronic device 100 and data processing by executing instructions stored in the internal memory 121 and/or instructions stored in a memory provided in the processor.

The electronic device 100 may implement audio functions via the audio module 170, the speaker 170A, the receiver 170B, the microphone 170C, the headphone interface 170D, and the application processor. Such as music playing, recording, etc.

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

The speaker 170A, also called a "horn", is used to convert the audio electrical signal into an acoustic signal. The electronic apparatus 100 can listen to music through the speaker 170A or listen to a handsfree call.

The receiver 170B, also called "earpiece", is used to convert the electrical audio signal into an acoustic signal. When the electronic apparatus 100 receives a call or voice information, it can receive voice by placing the receiver 170B close to the ear of the person.

The microphone 170C, also referred to as a "microphone," is used to convert sound signals into electrical signals. When making a call or transmitting voice information, the user can input a voice signal to the microphone 170C by speaking the user's mouth near the microphone 170C. The electronic device 100 may be provided with at least one microphone 170C. In other embodiments, the electronic device 100 may be provided with two microphones 170C to achieve a noise reduction function in addition to collecting sound signals. In other embodiments, the electronic device 100 may further include three, four or more microphones 170C to collect sound signals, reduce noise, identify sound sources, perform directional recording, and so on.

The headphone interface 170D is used to connect a wired headphone. The headset interface 170D may be the USB interface 130, or may be a 3.5mm open mobile electronic device platform (OMTP) standard interface, a cellular telecommunications industry association (cellular telecommunications industry association of the USA, CTIA) standard interface.

The pressure sensor 180A is used for sensing a pressure signal, and converting the pressure signal into an electrical signal. In some embodiments, the pressure sensor 180A may be disposed on the display screen 194. The pressure sensor 180A can be of a wide variety, such as a resistive pressure sensor, an inductive pressure sensor, a capacitive pressure sensor, and the like. The capacitive pressure sensor may be a sensor comprising at least two parallel plates having an electrically conductive material. When a force acts on the pressure sensor 180A, the capacitance between the electrodes changes. The electronic device 100 determines the strength of the pressure from the change in capacitance. When a touch operation is applied to the display screen 194, the electronic apparatus 100 detects the intensity of the touch operation according to the pressure sensor 180A. The electronic apparatus 100 may also calculate the touched position from the detection signal of the pressure sensor 180A. In some embodiments, the touch operations that are applied to the same touch position but different touch operation intensities may correspond to different operation instructions. For example: and when the touch operation with the touch operation intensity smaller than the first pressure threshold value acts on the short message application icon, executing an instruction for viewing the short message. And when the touch operation with the touch operation intensity larger than or equal to the first pressure threshold value acts on the short message application icon, executing an instruction of newly building the short message.

The gyro sensor 180B may be used to determine the motion attitude of the electronic device 100. In some embodiments, the angular velocity of electronic device 100 about three axes (i.e., the x, y, and z axes) may be determined by gyroscope sensor 180B. The gyro sensor 180B may be used for photographing anti-shake. For example, when the shutter is pressed, the gyro sensor 180B detects a shake angle of the electronic device 100, calculates a distance to be compensated for by the lens module according to the shake angle, and allows the lens to counteract the shake of the electronic device 100 through a reverse movement, thereby achieving anti-shake. The gyroscope sensor 180B may also be used for navigation, somatosensory gaming scenes.

The air pressure sensor 180C is used to measure air pressure. In some embodiments, electronic device 100 calculates altitude, aiding in positioning and navigation, from barometric pressure values measured by barometric pressure sensor 180C.

The magnetic sensor 180D includes a hall sensor. The electronic device 100 may detect the opening and closing of the flip holster using the magnetic sensor 180D. In some embodiments, when the electronic device 100 is a flip phone, the electronic device 100 may detect the opening and closing of the flip according to the magnetic sensor 180D. And then according to the opening and closing state of the leather sheath or the opening and closing state of the flip cover, the automatic unlocking of the flip cover is set.

The acceleration sensor 180E may detect the magnitude of acceleration of the electronic device 100 in various directions (typically three axes). The magnitude and direction of gravity can be detected when the electronic device 100 is stationary. The method can also be used for recognizing the posture of the electronic equipment, and is applied to horizontal and vertical screen switching, pedometers and other applications.

A distance sensor 180F for measuring a distance. The electronic device 100 may measure the distance by infrared or laser. In some embodiments, taking a picture of a scene, electronic device 100 may utilize range sensor 180F to range for fast focus.

The proximity light sensor 180G may include, for example, a Light Emitting Diode (LED) and a light detector, such as a photodiode. The light emitting diode may be an infrared light emitting diode. The electronic device 100 emits infrared light to the outside through the light emitting diode. The electronic device 100 detects infrared reflected light from nearby objects using a photodiode. When sufficient reflected light is detected, it can be determined that there is an object near the electronic device 100. When insufficient reflected light is detected, the electronic device 100 may determine that there are no objects near the electronic device 100. The electronic device 100 can utilize the proximity light sensor 180G to detect that the user holds the electronic device 100 close to the ear for talking, so as to automatically turn off the screen to achieve the purpose of saving power. The proximity light sensor 180G may also be used in a holster mode, a pocket mode automatically unlocks and locks the screen.

The ambient light sensor 180L is used to sense the ambient light level. Electronic device 100 may adaptively adjust the brightness of display screen 194 based on the perceived ambient light level. The ambient light sensor 180L may also be used to automatically adjust the white balance when taking a picture. The ambient light sensor 180L may also cooperate with the proximity light sensor 180G to detect whether the electronic device 100 is in a pocket to prevent accidental touches.

The fingerprint sensor 180H is used to collect a fingerprint. The electronic device 100 can utilize the collected fingerprint characteristics to unlock the fingerprint, access the application lock, photograph the fingerprint, answer an incoming call with the fingerprint, and so on.

The temperature sensor 180J is used to detect temperature. In some embodiments, electronic device 100 implements a temperature processing strategy using the temperature detected by temperature sensor 180J. For example, when the temperature reported by the temperature sensor 180J exceeds a threshold, the electronic device 100 performs a reduction in performance of a processor located near the temperature sensor 180J, so as to reduce power consumption and implement thermal protection. In other embodiments, the electronic device 100 heats the battery 142 when the temperature is below another threshold to avoid the low temperature causing the electronic device 100 to shut down abnormally. In other embodiments, when the temperature is lower than a further threshold, the electronic device 100 performs boosting on the output voltage of the battery 142 to avoid abnormal shutdown due to low temperature.

The touch sensor 180K is also referred to as a "touch panel". 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, which is also called a "touch screen". The touch sensor 180K is used to detect a touch operation applied thereto or nearby. The touch sensor can communicate the detected touch operation to the application processor to determine the touch event type. Visual output associated with the touch operation may be provided through the display screen 194. In other embodiments, the touch sensor 180K may be disposed on a surface of the electronic device 100, different from the position of the display screen 194.

The bone conduction sensor 180M may acquire a vibration signal. In some embodiments, the bone conduction sensor 180M may acquire a vibration signal of the human vocal part vibrating the bone mass. The bone conduction sensor 180M may also contact the human pulse to receive the blood pressure pulsation signal. In some embodiments, the bone conduction sensor 180M may also be disposed in a headset, integrated into a bone conduction headset. The audio module 170 may analyze a voice signal based on the vibration signal of the bone mass vibrated by the sound part acquired by the bone conduction sensor 180M, so as to implement a voice function. The application processor can analyze heart rate information based on the blood pressure beating signal acquired by the bone conduction sensor 180M, so as to realize the heart rate detection function.

The keys 190 include a power-on key, a volume key, and the like. The keys 190 may be mechanical keys. Or may be touch keys. The electronic apparatus 100 may receive a key input, and generate a key signal input related to user setting and function control of the electronic apparatus 100.

The motor 191 may generate a vibration cue. The motor 191 may be used for incoming call vibration cues, as well as for touch vibration feedback. For example, touch operations applied to different applications (e.g., photographing, audio playing, etc.) may correspond to different vibration feedback effects. The motor 191 may also respond to different vibration feedback effects for touch operations applied to different areas of the display screen 194. Different application scenes (such as time reminding, receiving information, alarm clock, game and the like) can also correspond to different vibration feedback effects. The touch vibration feedback effect may also support customization.

Indicator 192 may be an indicator light that may be used to indicate a state of charge, a change in charge, or a message, missed call, notification, etc.

The SIM card interface 195 is used to connect a SIM card. The SIM card can be brought into and out of contact with the electronic apparatus 100 by being inserted into the SIM card interface 195 or being pulled out of the SIM card interface 195. The electronic device 100 may support 1 or N SIM card interfaces, N being a positive integer greater than 1. The SIM card interface 195 may support a Nano SIM card, a Micro SIM card, a SIM card, etc. The same SIM card interface 195 can be inserted with multiple cards at the same time. The types of the plurality of cards may be the same or different. The SIM card interface 195 may also be compatible with different types of SIM cards. The SIM card interface 195 may also be compatible with external memory cards. The electronic device 100 interacts with the network through the SIM card to implement functions such as communication and data communication. In some embodiments, the electronic device 100 employs esims, namely: an embedded SIM card. The eSIM card can be embedded in the electronic device 100 and cannot be separated from the electronic device 100.

The software system of the electronic device 100 may employ a layered architecture, an event-driven architecture, a micro-core architecture, a micro-service architecture, or a cloud architecture. The embodiment of the present application takes an Android system with a layered architecture as an example, and exemplarily illustrates a software structure of the electronic device 100.

Fig. 2 is a block diagram of a software structure of the electronic device 100 according to the embodiment of the present application.

The layered architecture divides the software into several layers, each layer having a clear role and division of labor. The layers communicate with each other through a software interface. In some embodiments, the Android system is divided into four layers, an application layer, an application framework layer, an Android runtime (Android runtime) and system library, and a kernel layer from top to bottom.

The application layer may include a series of application packages.

As shown in fig. 2, the application package may include applications such as camera, gallery, calendar, phone call, map, navigation, WLAN, bluetooth, music, video, short message, etc.

The application framework layer provides an Application Programming Interface (API) and a programming framework for the application program of the application layer. The application framework layer includes a number of predefined functions.

As shown in FIG. 2, the application framework layers may include a window manager, content provider, view system, phone manager, resource manager, notification manager, and the like.

The window manager is used for managing window programs. The window manager can obtain the size of the display screen, judge whether a status bar exists, lock the screen, intercept the screen and the like.

The content provider is used to store and retrieve data and make it accessible to applications. The data may include video, images, audio, calls made and received, browsing history and bookmarks, phone books, etc.

The view system includes visual controls such as controls to display text, controls to display pictures, and the like. The view system may be used to build applications. The display interface may be composed of one or more views. For example, the display interface including the short message notification icon may include a view for displaying text and a view for displaying pictures.

The phone manager is used to provide communication functions of the electronic device 100. Such as management of call status (including on, off, etc.).

The resource manager provides various resources for the application, such as localized strings, icons, pictures, layout files, video files, and the like.

The notification manager enables the application to display notification information in the status bar, can be used to convey notification-type messages, can disappear automatically after a short dwell, and does not require user interaction. Such as a notification manager used to inform download completion, message alerts, etc. The notification manager may also be a notification that appears in the form of a chart or scroll bar text at the top status bar of the system, such as a notification of a background running application, or a notification that appears on the screen in the form of a dialog window. For example, prompting text information in the status bar, sounding a prompt tone, vibrating the electronic device, flashing an indicator light, etc.

The Android Runtime comprises a core library and a virtual machine. The Android runtime is responsible for scheduling and managing an Android system.

The core library comprises two parts: one part is a function which needs to be called by java language, and the other part is a core library of android.

The application layer and the application framework layer run in a virtual machine. And executing java files of the application program layer and the application program framework layer into a binary file by the virtual machine. The virtual machine is used for performing the functions of object life cycle management, stack management, thread management, safety and exception management, garbage collection and the like.

The system library may include a plurality of functional modules. For example: surface managers (surface managers), Media Libraries (Media Libraries), three-dimensional graphics processing Libraries (e.g., OpenGL ES), 2D graphics engines (e.g., SGL), and the like.

The surface manager is used to manage the display subsystem and provide fusion of 2D and 3D layers for multiple applications.

The media library supports a variety of commonly used audio, video format playback and recording, and still image files, among others. The media library may support a variety of audio-video encoding formats, such as MPEG4, h.264, MP3, AAC, AMR, JPG, PNG, and the like.

The three-dimensional graphic processing library is used for realizing three-dimensional graphic drawing, image rendering, synthesis, layer processing and the like.

The 2D graphics engine is a drawing engine for 2D drawing.

The kernel layer is a layer between hardware and software. The inner core layer at least comprises a display driver, a camera driver, an audio driver and a sensor driver.

The following describes exemplary workflow of the software and hardware of the electronic device 100 in connection with capturing a photo scene.

When the touch sensor 180K receives a touch operation, a corresponding hardware interrupt is issued to the kernel layer. The kernel layer processes the touch operation into an original input event (including touch coordinates, a time stamp of the touch operation, and other information). The raw input events are stored at the kernel layer. And the application program framework layer acquires the original input event from the kernel layer and identifies the control corresponding to the input event. Taking the touch operation as a touch click operation, and taking a control corresponding to the click operation as a control of a camera application icon as an example, the camera application calls an interface of an application framework layer, starts the camera application, further starts a camera drive by calling a kernel layer, and captures a still image or a video through the camera 193.

In the prior art, for example, a folding screen mobile phone having an inner screen and an outer screen, where the inner screen includes two sub-screens, and the outer screen includes one screen, because the outer screen is limited by the number of display conversion ports (such as DPHY ports) (generally, 2 display conversion ports), the folding screen mobile phone can only display image data information of 2 sub-screens, and cannot simultaneously display image data information of all the screens. It is understood that the problem can be solved by adding a new display conversion port, but the addition of the display conversion port to the original processor architecture will cause huge cost problems, including the requirements on hardware devices and the requirements on architecture design.

Further, the resolution of the foldable mobile phone is relatively high, and in a case that the resolution of the inner screen or the outer screen of the foldable mobile phone is too high, such as 2240x2480 (the display resolution supported by more than one display conversion port), 2 display conversion ports of the processor are required to be occupied. For example, in the case of too high resolution of the inner screen of the folding screen, 2 display conversion ports of the processor are required to display two sub-screens. At this time, the inner screen and the outer screen of the folding screen mobile phone cannot be displayed simultaneously. In the prior art, the internal screen and the external screen can be displayed separately, and the display conversion interface channels of the internal screen and the external screen can be switched by a switch.

Specifically, fig. 3 illustrates an architecture diagram of a multi-screen display in the prior art. As can be seen from fig. 3, the application processor AP specifically has two display conversion interfaces DPHY1 and DPHY2, and the folding-screen mobile phone further includes a switch and 3 screens in addition to the application processor, where the screen 1 and the screen 2 are inner screens of the folding-screen mobile phone, and the screen 3 is an outer screen of the folding-screen mobile phone. It can be seen that, due to the limitation of the number of the display conversion interfaces, the folding screen mobile phone can display at most two sub-screens simultaneously, wherein the screen 2 and the screen 3 can switch the display conversion interface channels through a switch, so that the screen 2 and the screen 3 can realize the screen display switching of the inner screen and the outer screen through one switch.

It can understand, the multi-screen display scheme of prior art can't accomplish 3 sub-screens and show simultaneously, for example when outer screen and interior screen show simultaneously, can only switch through the switch, can't accomplish the simultaneous display of interior screen and outer screen. In a specific application scenario, if a photographer and a photographed person are required to see images on a screen at the same time when a friend is photographed, the requirement cannot be met.

In view of this, the present application provides a multi-screen display electronic device (the infrastructure of which may be specifically the electronic device 100 shown in fig. 1) for implementing a function of simultaneously displaying multiple screens of the electronic device.

The multi-screen display electronic device includes:

the device comprises a memory and a processor, wherein the processor comprises an application processor, the application processor comprises a display interface and at least one display conversion interface, and the number of the display conversion interfaces is smaller than that of the screens of the electronic equipment.

The display switching chip is used for converting the display interface data into protocol interface data and realizing screen display according to the protocol interface data.

The memory is used for storing instructions and data, so that the processor can process data according to the instructions and the data in time. The processor specifically includes an application processor AP, and may further include processors such as a modem processor, a graphics processor, and an image signal processor.

In one embodiment, the application processor comprises a display interface and at least one display conversion interface, and the display conversion interface can display corresponding image data information on the screen of the electronic equipment according to the received data. The display interface is a display communication port that relies on packetized data transfer technologies such as those found in ethernet, USB, and PCI (local bus) Express technologies. The display interface may be used for both internal and external display connections. It can be understood that the display conversion interface may directly display corresponding image data information on the screen of the electronic device according to the received data, and the display interface needs to implement the screen display of the electronic device by a data conversion method, for example, by converting the display interface data into the MIPI data.

In an embodiment, the display interface may specifically implement data conversion by using a display adapter chip. In the embodiment of the present application, a switch is provided for the display interface. The switch can change the connection path of the display interface. When the switch state is unchanged, the display interface keeps the interface function of the display interface, namely that no switch is arranged; when the switch state is changed, the connection path of the display interface is a display switching chip. Through the display switching chip, the display interface data can be converted into the protocol interface data, so that screen display is realized according to the protocol interface data.

In the embodiment of the application, when a plurality of screens of the electronic device cannot be displayed simultaneously, the display interfaces of the application processor are fully utilized, the switch and the display switching chip are added, on the premise that the display switching interface is utilized to display the screen, the switch is utilized to switch the switching object of the display interfaces into the display switching chip, the display switching chip converts the display interface data into the protocol interface data, multi-screen display is realized according to the protocol interface data, and multi-screen simultaneous display of the electronic device can be realized under the condition that the functions of the display interfaces are reserved.

Further, the display interface includes, but is not limited to, a DP interface.

It is to be understood that, in a display communication protocol specifically used by the electronic device, the display interface may specifically be a dp (display port) interface. The DP interface is mainly used for connecting a video source with a display and the like, and also supports carrying audio, USB and other forms of data. Further, the DP interface can be backward compatible with legacy interfaces (e.g., HDMI and DVI) via active or passive adapters. It is understood that other display interfaces capable of display communication are possible and are not limited in this application.

Further, the display conversion interface includes, but is not limited to, a DPHY interface.

Among them, DPHY is a physical layer of MIPI (Mobile Industry Processor Interface). In an embodiment, the display conversion interface may specifically adopt a DPHY interface. When the display conversion interface uses the DPHY interface, the other interfaces for display communication in the electronic device should also use the corresponding interfaces and display communication protocols, so that the electronic device can complete the screen display under the same type of display communication protocol. It can be understood that, if the display conversion interface specifically employs a DPHY interface, the display interface may correspondingly employ a DP interface, and the display conversion chip may also specifically employ a DP2MIPI chip.

Further, the switches include, but are not limited to, high speed switches, and the number of switches is the same as the number of display conversion interfaces.

It will be appreciated that high speed switches are used in high speed electronic circuits, and that for large scale, very large scale integrated circuits such as processors, high speed switches may be used to selectively effect the switching of the connection paths. In one embodiment, the switch is used for switching the display conversion interface to the screen display or selecting a switching object of the display interface. The switch may be provided in plurality.

Further, the display switching chip includes, but is not limited to, a DP2MIPI chip.

In an embodiment, the display switching chip may specifically adopt a DP2MIPI chip, and the DP2MIPI chip is adopted to convert DP data into MIPI data, thereby implementing screen display.

Further, the display interface data includes, but is not limited to, DP data.

In an embodiment, when the display interface adopts a DP interface, the display interface data is specifically DP data.

Further, the protocol interface data includes, but is not limited to, MIPI data.

In an embodiment, when the transit chip adopts a DP2MIPI chip, the protocol interface data is specifically MIPI data.

Further, the electronic device further comprises a display port, wherein the display port is applied to a display interface, and the display port is also applied to interfaces with other types.

It is understood that a port refers to a connection port for connecting with an external device, and the interface mainly emphasizes interfacing between layers in a communication data protocol layer.

In an embodiment, the electronic device may further include a display port, for example, an external device is connected to the display port, and displays image data information on a screen of the external device according to the acquired data.

It is understood that the display port is applied to a display interface through which data transmission is required when an external device is connected to the display port. The display interface does not necessarily depend on the display port, and if the electronic device does not have the display port, the display interface can also realize multi-screen display of the electronic device through the switch and the display switching chip.

Further, the displayport can also simultaneously implement the functions of other types of ports, and herein the displayport should be considered as a port with integrated functions. Specifically, the display port may also simultaneously implement functions such as a USB port, and for example, the external device USB disk may implement data communication based on the USB communication protocol through the display port.

In particular, the display port is a DP/USB port. It will be appreciated that the DP/USB interface applies to this DP/USB port.

The DP/USB port includes but is not limited to DP/USB2.0 port, DP/USB3.0 port, and other different versions of ports. Similarly, the display interface is not limited to the DP interface, but may be a DP/USB3.0 interface.

Further, the screen of the electronic device comprises an inner screen and an outer screen, wherein the inner screen comprises at least one sub-screen, and the outer screen comprises at least one sub-screen.

It is understood that an electronic device, such as a folding screen mobile terminal, includes an inner screen and an outer screen, and particularly, the inner screen may include two sub-screens and the outer screen may include one screen.

Fig. 4 is a schematic diagram illustrating an architecture of a multi-screen display electronic device according to the present application.

As can be seen from fig. 4, the electronic device includes an application processor, which includes a DPHY1 interface, a DPHY2 interface, and a DP/USB3.0 interface. For the screen 1 of the inner screen, the screen display can be realized through a DPHY1 interface; for screen 2 of the inner screen, screen display can be realized through the DPHY2 interface. For the screen 3 of the outer screen, when the screen 2 is not displayed. The screen display can be realized by switching the display channel through the switch 1, and the DP/USB interface can still be normally used at the moment; when the screen 2 displays, the switch 2 can be switched to the DP2MIPI chip, DP2MIPI chip is used for converting DP data into MIPI data, and then the screen 3 is displayed. The DP/USB3.0 interface is also part of the design in the application processor AP of the electronic device, and the architecture of the application processor is not changed. In an embodiment, multi-screen display of the electronic device is realized by using the DP/USB3.0 interface, the switch 2 and the DP2MIPI chip, and the DP/USB3.0 interface is fully used on the premise of not changing an application processor architecture of the electronic device, so that the screen 3 can realize screen display by using the DP/USB3.0 interface.

It is understood that, in the embodiment of the present application, if there are 3 display conversion interfaces (DPHY1-DPHY3), the DP/USB3.0 interface can also support the display of 4 sub-screens. The display method of other number of sub-screens is similar, and the detailed description is omitted here.

The application also provides a multi-screen display method of the electronic equipment, which comprises the following steps:

s10: when the screen display of the electronic equipment meets the display requirement, the multi-screen display of the electronic equipment is realized by utilizing the display conversion interface.

It can be understood that when the screen display of the electronic device meets the display requirement, that is, the number of the display conversion interfaces, such as the DPHY interfaces, is enough, the screen display can be directly realized. When the multi-screen display comprises the display of an inner screen and an outer screen, the switching display of the screens can be realized through a switch, for example, the inner screen comprises the screen 1 and the screen 2, and the outer screen comprises the screen 3, and when the screen 1 and the screen 3 need to be displayed, the display path can be switched through the switch to display the screen 1 and the screen 2.

S20: when the screen display of the electronic device does not meet the display requirement, the screen is displayed by using the display conversion interface, the conversion object of the display interface is converted into the display conversion chip by using the switch, the display interface data is converted into the protocol interface data according to the display conversion chip, and the multi-screen display is realized according to the protocol interface data, wherein the electronic device is the electronic device mentioned in the above embodiment.

It can be understood that, when the screen display of the electronic device does not satisfy the display requirement, that is, the number of the display conversion interfaces, such as the DPHY interfaces, is not enough, the existing display conversion interfaces can be facilitated to display the corresponding screens, the display conversion interfaces are lacked, the conversion object of the display interfaces can be switched to the display switching chip by using the switch, and then the display interface data is converted to the protocol interface data according to the display switching chip, so that the multi-screen simultaneous display of the electronic device is realized by using the protocol interface data.

In this embodiment of the present application, by adding a switch and a display switching chip, when a plurality of screens of an electronic device cannot be displayed simultaneously, on the premise that a display switching interface is used to display a screen, a switching object of the display interface is switched to the display switching chip by using the switch, the display switching chip converts the display interface data into protocol interface data, and the multi-screen display is implemented according to the protocol interface data, so that the multi-screen simultaneous display of the electronic device can be implemented while maintaining the functions of the display interface.

This application still provides a many screen display mobile terminal, includes:

Further, the display interface includes, but is not limited to, a DP interface.

Further, the display interface data includes, but is not limited to, DP data.

Further, the mobile terminal further comprises a display port, wherein the display port is applied to a display interface, and the display port is also applied to other types of interfaces.

Further, the display port includes, but is not limited to, a DP/USB port, and the DP/USB interface is applied to the DP/USB port.

Further, the mobile terminal is a foldable mobile terminal and comprises an inner screen and an outer screen.

Furthermore, the inner screen of the mobile terminal comprises two sub-screens, the outer screen of the mobile terminal is a screen, and the mobile terminal comprises two display conversion interfaces and a display interface.

The above explanation can refer to the multi-screen display mobile terminal provided in the present application, and is not repeated herein.

The application also provides a multi-screen display method of the mobile terminal, which comprises the following steps:

s30: and when the screen display of the mobile terminal meets the display requirement, the multi-screen display of the mobile terminal is realized by utilizing the display conversion interface.

It can be understood that when the screen display of the mobile terminal meets the display requirement, that is, the number of the display conversion interfaces, such as the DPHY interfaces, is enough, the screen display can be directly realized. When the multi-screen display comprises the display of an inner screen and an outer screen, the switching display of the screens can be realized through a switch, for example, the inner screen comprises the screen 1 and the screen 2, and the outer screen comprises the screen 3, and when the screen 1 and the screen 3 need to be displayed, the display path can be switched through the switch to display the screen 1 and the screen 2.

S40: when the screen display of the mobile terminal does not meet the display requirement, the screen is displayed by using the display conversion interface, the conversion object of the display interface is converted into the display conversion chip by using the switch, the display interface data is converted into the protocol interface data according to the display conversion chip, and the multi-screen display is realized according to the protocol interface data, wherein the mobile terminal is the mobile terminal mentioned in the embodiment.

It can be understood that, when the screen display of the mobile terminal does not meet the display requirement, that is, the number of the display conversion interfaces, such as the DPHY interfaces, is not enough, the existing display conversion interfaces can be facilitated to display the corresponding screens, the display conversion interfaces are lacked, the conversion object of the display interfaces can be switched to the display switching chip by using the switch, and then the display interface data is converted into the protocol interface data according to the display switching chip, so that the multi-screen simultaneous display of the mobile terminal is realized by using the protocol interface data.

In the embodiment of the application, by adding the switch and the display switching chip, when a plurality of screens of the mobile terminal cannot be displayed simultaneously, on the premise that the display switching interface is used for displaying the screens, the switch is further used for switching the switching objects of the display interface into the display switching chip, the display switching chip converts the display interface data into the protocol interface data, and multi-screen display is realized according to the protocol interface data, so that the multi-screen simultaneous display of the mobile terminal can be realized under the condition that the function of the display interface is reserved.

Further, if the mobile terminal is a foldable mobile terminal, including an inner screen and an outer screen, the inner screen of the mobile terminal includes two sub-screens, the outer screen of the mobile terminal is a screen, the mobile terminal includes two display conversion interfaces and a display interface, and the switch is two, in step S40, when the screen display of the mobile terminal meets the display requirement, the multi-screen display of the mobile terminal is realized by using the display conversion interfaces, which specifically includes:

when the mobile terminal is used in the external screen and the internal screen is not used, the multi-screen display of the mobile terminal is realized by using the display conversion interface and the switch.

It can be understood that, if the mobile terminal is in the outer screen for use and the inner screen is not in use when the foldable screen is in the folded state (folded inwards), the multi-screen display of the mobile terminal can be realized by switching the switches of the inner screen and the outer screen and using the display switching interface.

Further, in step S40, when the screen display of the mobile terminal meets the display requirement, the implementing of the screen display of the mobile terminal by using the display conversion interface specifically includes: if only one sub-screen of the inner screen is displayed and the sub-screen is a sub-screen with the same switch as the outer screen, switching the switches of the inner screen and the outer screen and utilizing a display conversion interface to realize multi-screen display of the mobile terminal; when the sub-screen is not the sub-screen with the same switch as the external screen, the display conversion interface can be directly utilized to realize the screen display of the mobile terminal.

When the mobile terminal is used in the inner screen and the outer screen is not used, the multi-screen display of the mobile terminal is realized by using the display conversion interface and the switch.

It can be understood that when the foldable screen is in the unfolded state, there is a case where the inner screen of the foldable screen is used and the outer screen is not used, and in this case, generally, both sub-screens of the inner screen are displayed, and at this time, the multi-screen display of the mobile terminal can be implemented by using the display conversion interface and the switch.

If the mobile terminal is a foldable mobile terminal, including inner screen and outer screen, the inner screen of the mobile terminal includes two sub-screens, the outer screen of the mobile terminal is a screen, the mobile terminal includes two display conversion interfaces and a display interface, and the switch is two, then in step S40, when the screen display of the mobile terminal does not satisfy the display requirement, the display conversion interfaces are used to display the screen, and the switch is used to convert the conversion object of the display interfaces into a display conversion chip, the display interface data is converted into protocol interface data according to the display conversion chip, and the multi-screen display is realized according to the protocol interface data, including:

when the mobile terminal is used by both the inner screen and the outer screen, the screen is displayed by using the display conversion interface and the switch, the conversion object of the display interface is converted into the display conversion chip by using the switch, the display interface data is converted into the protocol interface data according to the display conversion chip, and multi-screen display is realized according to the protocol interface data.

It is understood that when the folding screen is in the unfolded state, there is a case where both the inner screen and the outer screen of the folding screen are used. For example, when a specific scene is to photograph friends, if a photographer and a photographed person are required to see images on a screen at the same time, both an inner screen and an outer screen of the folding screen are used; or when the folding screen is adopted for meeting, the speaker needs to operate on the inner screen of the folding screen, and when the outer screen displays, the inner screen and the outer screen of the folding screen are both used; or when the player plays a game face to face and the outer screen is used for displaying real-time battle condition information of the player, the inner screen and the outer screen of the folding screen are both used. For these situations, the foldable mobile terminal will utilize the display conversion interface and the switch to display the screen, and utilize the switch to convert the conversion object of the display interface into the display conversion chip, convert the display interface data into the protocol interface data according to the display conversion chip, and implement multi-screen display according to the protocol interface data.

In the embodiment of the application, by adding the switch and the display switching chip, when a plurality of screens of the mobile terminal cannot be displayed simultaneously, on the premise that the display switching interface is used for displaying the screens, the switch is further used for switching objects of the display interface into the display switching chip, the display switching chip converts the display interface data into the protocol interface data, multi-screen display is realized according to the protocol interface data, the display interface is fully utilized on the premise that the architecture of an application processor of the mobile terminal is not changed, and the outer screen of the folding screen can realize screen display through the display interface.

This application still provides a multi-screen display electronic equipment, and the data processing module of this electronic equipment screen includes static RAM, and this multi-screen display electronic equipment includes:

the processor comprises an application processor, a memory and a processor, wherein the application processor comprises a digital signal microprocessor, an interface selection switch, a display conversion interface and a signal feedback pin, the number of the display conversion interfaces is less than that of the screens of the electronic equipment, and the interface selection switch is used for switching data output by the digital signal microprocessor to the display conversion interface;

the display switching switch is used for switching signals of an output object of the display conversion interface and realizing screen display according to data output by the display conversion interface, the data selector is used for switching signals of output signals fed back by the screen signal feedback pin and sending the switched output signals to the signal feedback pin of the application processor, so that the signal feedback pin indicates the application processor to output data to the screen again.

In an embodiment, when the data processing module inside the screen of the electronic device includes a static RAM (Random Access Memory), it is also possible to implement multi-screen display of the electronic device when the number of display conversion interfaces of the DSI is less than the number of screens. The concrete implementation is as follows: an interface selection switch is added in an application processor of the electronic equipment so as to transfer data output by a Digital Signal microprocessor (DSP) to different types of display conversion interfaces, and a display transfer switch is arranged on a data path of some display conversion interfaces capable of realizing screen switching so as to realize data transmission of different screens through the display transfer switch. It can be understood that, because the data processing module of the screen of the electronic device comprises the static RAM, the data output by the application processor is not lost, so that synchronous display of the inner screen and the outer screen of the folding screen device can be realized. Further, since the data displayed on the screen is continuously output, in an embodiment, a screen signal feedback pin and a signal feedback pin for receiving the fed back output signal in the application processor are further provided in the electronic device, and the fed back output signal can be switched by the data selector, so that the fed back output information can be orderly transmitted to the application processor without causing data collision.

A DPHY is a physical layer of MIPI. In an embodiment, the display conversion interface may specifically adopt a DPHY interface. When the display conversion interface uses the DPHY interface, the other interfaces for display communication in the electronic device should also use the corresponding interfaces and display communication protocols, so that the electronic device can complete the screen display under the same type of display communication protocol.

Further, the display conversion interface is a DSI interface.

The DSI Interface is a serial Interface applied to a Display technology, is compatible with a DPI (Display Pixel Interface), a DBI (Display Bus Interface) and a DCS (Display Command Set), and transmits data in a serial manner, and enjoys an independent communication protocol during data transmission, including a data packet format and an error correction and detection mechanism. The DSI is a protocol layer of the DPHY, and is mainly used for image output, and in an embodiment, the display conversion interface may specifically adopt an interface of a DSI protocol in the DPHY.

Further, the signal feedback pin and the screen signal feedback pin are of TE pin type.

Among them, TE (a tracking effect, an output pin) can be used as a signal feedback pin and a screen signal feedback pin of the application processor in this embodiment.

Furthermore, the data output by the display conversion interface is MIPI data, and the type of the display transfer switch is an MIPI display transfer switch, and the display transfer switch is used for switching the signals of the output object of the display conversion interface and sending the MIPI data to the screen for determining switching.

It can be understood that, after the MIPI display changeover switch is set, the display changeover interface may be switched to output the signal of the object, that is, the screen for determining data output, for example, in a folding screen device, the data may be specifically determined to be transmitted to the screen 2 of the inner screen or the screen 3 of the outer screen by the signal switching of the MIPI display changeover switch.

Further, the application processor also includes a display interface, including but not limited to a DP interface.

Further, the screen of the electronic device includes an inner screen and an outer screen.

It is to be understood that the electronic device may specifically refer to a folded-screen device having multiple sub-screens, where the folded-screen device specifically includes an inner screen and an outer screen, and of course, other electronic devices having multiple sub-screens may also implement the function of simultaneously displaying multiple sub-screens.

FIG. 5 is a schematic diagram of yet another multi-screen display electronic device architecture.

As can be seen from fig. 5, the DSP1 of the application processor implements switching between the DSI1 and the DSI2 through the interface selection switch (switch 3), where when the data transmission path of the DSI1 is not provided with a switch such as a MIPI display transfer switch (MIPI SW, switch 4), the data will be directly transmitted to the screen 1 such as the inner screen, and when the data transmission path of the DSI2 is provided with the MIPI display transfer switch, the data will be selected to be transmitted to the screen 2 of the inner screen or the screen 3 of the outer screen based on the influence of the MIPI display transfer switch switching signal, so as to implement switching between different screens. Further, because the data processing module of the screen of the electronic device comprises the static RAM, the data output by the application processor cannot be lost, and synchronous display of the inner screen and the outer screen of the folding screen device can be realized.

Further, the DSP2 of the application processor may also be switched to the DP interface through the interface selection switch (switch 3), and display of the external expansion screen is realized through the DP interface.

FIG. 6 is a diagram of a multi-screen display electronic device at an output signal feedback level.

As can be seen from fig. 6, no matter the internal screen TE or the external screen TE, the output signal is sent to the data selector (MUX) for signal conversion, so that the output signals of the internal screen TE and the external screen TE can be effectively fed back to the application processor, and the application processor is instructed to send out data again on the premise of not causing data collision.

Fig. 7 is a flowchart illustrating a multi-screen display electronic device implementing multi-screen simultaneous display.

As can be seen from the figure, the application processor realizes the display of the screen by using the MIPI display transfer switch and the function of saving data by using the screen SRAM (static RAM), and continuously allows the application processor to output data by returning an output signal, so as to realize the smooth display of the screen.

This multi-screen display electronic equipment utilizes MIPI to show the cooperation of change over switch and data selector, realizes showing under the conversion interface quantity and being less than the screen quantity circumstances, the function that electronic equipment's multi-screen shows.

the interface selection switch is adopted to transfer the data output by the display digital signal microprocessor to the display conversion interface;

if the transmission channel of the display conversion interface does not have a display conversion switch, screen display is realized according to data output by the display conversion interface;

if a display transfer switch exists on a transmission channel of the display transfer interface, based on a display requirement, switching a signal of an output object of the display transfer interface by using the display transfer switch, sending data output by the display transfer interface to a screen for determining switching, and realizing screen display according to the data output by the display transfer interface, wherein in the process of screen display, a data selector is used for switching signals of an output signal fed back by a screen signal feedback pin, and the switched output signal is sent to a signal feedback pin of an application processor, so that the signal feedback pin indicates the application processor to output the data to the screen again.

Referring to fig. 5, fig. 6 and fig. 7, a specific implementation of the multi-screen display method of the electronic device can be seen, which is not described herein again.

It should be understood that, the sequence numbers of the steps in the foregoing embodiments do not imply an execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

It should be understood that the embodiments described are only a few embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units and modules according to needs, that is, the internal structure of the apparatus is divided into different functional units or modules, so as to perform all or part of the functions described above.

The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions stored in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application and are intended to be included within the scope of the present application.

Claims

1. A multi-screen display electronic device, comprising:

2. The electronic device of claim 1, wherein the display interface comprises, but is not limited to, a DP interface.

3. The electronic device of claim 1, wherein the display conversion interface includes, but is not limited to, a DPHY interface.

4. The electronic device of claim 1, wherein the switches include, but are not limited to, high-speed switches, and the number of the switches is the same as the number of the display conversion interfaces.

5. The electronic device of claim 1, wherein the display interface chip includes, but is not limited to, a DP2MIPI chip.

6. The electronic device of claim 1, wherein the display interface data includes, but is not limited to, DP data.

7. The electronic device of claim 1, wherein the protocol interface data includes, but is not limited to, MIPI data.

8. The electronic device of claim 1, further comprising a displayport, wherein the displayport is applied to a displayinterface, and wherein the displayport is also applied to other types of interfaces.

9. The electronic device of claim 8, wherein the displayport includes, but is not limited to, a DP/USB port to which a DP/USB interface is applied.

10. The electronic device according to any one of claims 1-9, wherein the screen of the electronic device comprises an inner screen and an outer screen, wherein the inner screen comprises at least one sub-screen, and the outer screen comprises at least one sub-screen.

11. A multi-screen display method of an electronic device, comprising:

when the screen display of the electronic equipment does not meet the display requirement, displaying a screen by using a display conversion interface, converting a conversion object of the display interface into a display conversion chip by using a switch, converting display interface data into protocol interface data according to the display conversion chip, and realizing multi-screen display according to the protocol interface data, wherein the electronic equipment is the electronic equipment according to any one of claims 1 to 10.

12. A multi-screen display mobile terminal, comprising:

13. The mobile terminal of claim 1, wherein the display interface comprises, but is not limited to, a DP interface.

14. The mobile terminal of claim 1, wherein the display conversion interface comprises, but is not limited to, a DPHY interface.

15. The mobile terminal of claim 1, wherein the switches include, but are not limited to, high-speed switches, and the number of the switches is the same as the number of the display conversion interfaces.

16. The mobile terminal of claim 1, wherein the display switching chip includes but is not limited to a DP2MIPI chip.

17. The mobile terminal of claim 1, wherein the display interface data includes, but is not limited to, DP data.

18. The mobile terminal of claim 1, wherein the protocol interface data includes, but is not limited to, MIPI data.

19. The mobile terminal according to claim 1, characterized in that it further comprises a displayport, said displayport being applied to display interfaces, said displayport also being applied to interfaces with other types.

20. The mobile terminal of claim 19, wherein the displayport comprises but is not limited to a DP/USB port, and a DP/USB interface is applied to the DP/USB port.

21. The mobile terminal of claim 12, wherein the mobile terminal is a foldable mobile terminal comprising an inner screen and an outer screen.

22. A mobile terminal according to any of claims 12-21, wherein the internal screen of the mobile terminal comprises two sub-screens, the external screen of the mobile terminal is one screen, and the mobile terminal comprises two of said display conversion interfaces and one of said display interfaces.

23. A multi-screen display method of a mobile terminal is characterized by comprising the following steps:

when the screen display of the mobile terminal does not meet the display requirement, displaying a screen by using a display conversion interface, switching a conversion object of the display interface into a display conversion chip by using a switch, converting display interface data into protocol interface data according to the display conversion chip, and realizing multi-screen display according to the protocol interface data, wherein the mobile terminal is the mobile terminal according to any one of claims 12 to 22.

24. The method according to claim 23, wherein the mobile terminal is a foldable mobile terminal and comprises an inner screen and an outer screen, the inner screen of the mobile terminal comprises two sub-screens, the outer screen of the mobile terminal is a screen, the mobile terminal comprises two display conversion interfaces and one display interface, the number of the switches is two, and when the screen display of the mobile terminal meets the display requirement, the implementing the multi-screen display of the mobile terminal by using the display conversion interfaces comprises:

25. The method according to claim 23, wherein the mobile terminal is a foldable mobile terminal, and comprises an inner screen and an outer screen, the inner screen of the mobile terminal comprises two sub-screens, the outer screen of the mobile terminal is a screen, the mobile terminal comprises two display conversion interfaces and one display interface, the number of the switches is two, when the screen display of the mobile terminal does not meet the display requirement, the screen is displayed by using the display conversion interfaces, and a conversion object of the display interfaces is switched to a display switching chip by using the switches, the display interface data is converted into protocol interface data according to the display switching chip, and multi-screen display is implemented according to the protocol interface data, and the method comprises:

26. A multi-screen display electronic device, wherein a data processing module of a screen of the electronic device includes a static RAM, the multi-screen display electronic device comprising:

27. The electronic device of claim 26, wherein the display conversion interface comprises, but is not limited to, a DPHY interface.

28. The electronic device of claim 26, wherein the display conversion interface is a DSI interface.

29. The electronic device of claim 26, wherein the signal feedback pin and the screen signal feedback pin are of TE pin type.

30. The electronic device of claim 26, wherein the data output by the display conversion interface is MIPI data, and the display transfer switch is of a type MIPI display transfer switch, and is configured to switch a signal of an output object of the display conversion interface and send the MIPI data to a screen for determining switching.

31. The electronic device of claim 26, wherein the application processor further comprises a display interface, including but not limited to a DP interface.

32. The electronic device of any of claims 26-31, wherein the screen of the electronic device comprises an inner screen and an outer screen.

33. A multi-screen display method of an electronic device, comprising: