CN113448382B

CN113448382B - Multi-screen display electronic device and multi-screen display method of electronic device

Info

Publication number: CN113448382B
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: 2024-01-16
Anticipated expiration: 2040-03-27
Also published as: WO2021190344A1; CN113448382A

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 the multi-screen display electronic device includes: a memory and a processor, wherein the processor comprises an application processor comprising a display interface and at least one display conversion interface, wherein the number of display conversion interfaces is less than the number of electronic device screens; the display interface comprises a switch and a display transfer chip, wherein the switch is used for transferring the display transfer interface to a screen for display, or selecting a transfer object of the display interface, the transfer object of the display interface comprises the display interface and the display transfer chip, and the display transfer 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 device can realize simultaneous display of multiple screens of the electronic device.

Description

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

[ field of technology ]

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 Art ]

When the current intelligent terminal product needs to display internal and external screens simultaneously, the current intelligent terminal product is limited by the display of the number of display conversion ports of the processor, so that only a limited number of screen displays can be realized. In this case, a plurality of screens of the smart terminal product will not be simultaneously displayed.

[ invention ]

In view of this, the embodiments of the present application provide 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, which are used for solving the problem that multiple screens of the electronic device cannot be displayed simultaneously.

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

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

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

Aspects and any one of the possible implementations described above, further providing an implementation, the display interface includes, but is not limited to, a DP interface.

Aspects and any one of the possible implementations described above, further providing an implementation, the display conversion interface includes, but is not limited to, a DPHY interface.

Aspects and any of the possible implementations described above, further provide an implementation, the switch including, but not limited to, a high-speed switch, the number of switches being the same as the number of display conversion interfaces.

Aspects and any one of the possible implementations described above, further provide an implementation, the display-switching chip includes, but is not limited to, a DP2MIPI chip.

Aspects and any one of the possible implementations described above, further providing an implementation, the display interface data includes, but is not limited to, DP data.

Aspects and any one of the possible implementations described above, further provide an implementation, the protocol interface data including, but not limited to MIPI data.

Aspects and any of the possible implementations as described above, further provide an implementation, the electronic device further including a display port, the display port being applied to a display interface, the display port being further applied to interfaces with other types.

Aspects and any of the possible implementations as described above, further provide an implementation, the display port including but not limited to a DP/USB port to which the DP/USB interface is applied.

Aspects and any possible implementation manner as described above, 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 of an electronic device, including:

when the screen display of the electronic equipment meets the display requirement, the display conversion interface is utilized to realize multi-screen display of the electronic equipment;

when the screen display of the electronic equipment does not meet the display requirement, the screen is displayed by utilizing a display conversion interface, a conversion object of the display interface is converted into a display conversion chip by utilizing a switch, the display interface data is converted into protocol interface data according to the display conversion chip, and multi-screen display is realized according to the protocol interface data, wherein the electronic equipment is the electronic equipment of 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 smaller than the number of the mobile terminal screens;

In aspects and any possible implementation manner as described above, there is further provided an implementation manner, where the mobile terminal further includes a display port, where the display port is applied to a display interface, and where the display port is further applied to interfaces with other types.

Aspects and any one of the possible implementations as described above, further provide an implementation, where the mobile terminal is a foldable mobile terminal, including an inner screen and an outer screen.

In the aspect and any possible implementation manner described above, there is further provided an implementation manner, where the inner screen of the mobile terminal includes two sub-screens, the outer 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 of a mobile terminal, including:

when the screen display of the mobile terminal meets the display requirement, the display conversion interface is utilized to realize the multi-screen display of the mobile terminal;

when the screen display of the mobile terminal does not meet the display requirement, the screen is displayed by utilizing a display conversion interface, a conversion object of the display interface is converted into a display conversion chip by utilizing a switch, display interface data are converted into protocol interface data according to the display conversion chip, and multi-screen display is realized according to the protocol interface data, wherein the mobile terminal is the mobile terminal of the third aspect.

The aspect and any possible implementation manner described above further provide an implementation manner, where the mobile terminal is a foldable mobile terminal, including 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 one screen, the mobile terminal includes two display conversion interfaces and one display interface, and the switch is two, where when the screen display of the mobile terminal meets the display requirement, the display conversion interface is used to implement multi-screen display of the mobile terminal, including:

When the mobile terminal is in use of the external screen and the internal screen is not in use, the display conversion interface and the switch are utilized to realize multi-screen display of the mobile terminal;

when the mobile terminal is in use of the inner screen and the outer screen is not in use, the display conversion interface and the switch are utilized to realize multi-screen display of the mobile terminal.

The aspect and any possible implementation manner described above further provide an implementation manner, where the mobile terminal is a foldable mobile terminal, including 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 one screen, the mobile terminal includes two display conversion interfaces and one display interface, and the switch is two, where 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 interface is converted into a display conversion chip by using the switch, display interface data is converted into protocol interface data according to the display conversion chip, and multi-screen display is implemented according to the protocol interface data, where the implementation manner includes:

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

In a fifth aspect, embodiments of the present application provide 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 system comprises a memory and a processor, wherein the processor comprises an application processor, 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 smaller 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 transfer 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, wherein 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 aspects and any one of the possible implementations described above, there is further provided an implementation, the display conversion interface is a DSI interface.

In aspects and any one of the possible implementations described above, there is further provided an implementation, where the type of the signal feedback pin and the screen signal feedback pin is a TE pin.

In the aspect and any possible implementation manner described above, there is further provided an implementation manner, where the data output by the display conversion interface is MIPI data, and the type of the display transfer switch is a MIPI display transfer switch, and the display transfer switch is configured to switch a signal of an output object of the display conversion interface, and send the MIPI data to a screen that determines switching.

Aspects and any possible implementation as described above, further providing an implementation, the application processor further includes a display interface including, but not limited to, a DP interface.

Aspects and any one of the possible implementations as described above, 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 of 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, realizing screen display 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 signals of an output object of the display conversion interface by using the display transfer switch based on display requirements, sending data output by the display conversion interface to a screen for determining 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 switching signals of output signals fed back by a screen signal feedback pin, and the switched output signals are 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 embodiment of the present application, when a plurality of screens of an electronic device cannot be displayed simultaneously, the display interface of the application processor is fully utilized, by adding a switch and a display switching chip, under the premise of displaying the screen by using the display switching interface, the switching object of the display interface is further switched to the display switching chip by using the switch, the display interface data is converted to the protocol interface data by using the display switching chip, and according to the protocol interface data, the multi-screen display is realized, and the multi-screen simultaneous display of the electronic device can be realized under the condition that the function of the display interface is maintained.

[ description of the drawings ]

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

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 architecture of an electronic device according to an embodiment of the present application;

FIG. 3 is a schematic diagram of a prior art multi-screen display according to one embodiment of the present application;

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

FIG. 5 is a schematic diagram of yet another multi-screen display electronic device architecture provided in an embodiment of the present application;

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

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

[ detailed description ] of the invention

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. Wherein, in the description of the embodiments of the present application, "/" means or is meant unless otherwise indicated, for example, a/B may represent a or B; "and/or" herein is merely an association relationship describing an association object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone.

The terms "first" and "second" are used below for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the embodiments of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.

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

Fig. 1 shows a schematic configuration 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 (universal serial bus, USB) interface 130, a charge 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, keys 190, a motor 191, an indicator 192, a camera 193, a display 194, and a subscriber identity module (subscriber identification module, SIM) card interface 195, etc. The sensor module 180 may include a pressure sensor 180A, a gyro sensor 180B, an air pressure sensor 180C, a magnetic sensor 180D, an acceleration sensor 180E, a distance sensor 180F, a proximity 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 structure illustrated in the embodiments of the present application does not constitute a specific limitation on the electronic device 100. In other embodiments of the present application, electronic device 100 may include more or fewer components than shown, or certain components may be combined, or certain components may be split, or different arrangements of components. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

The processor 110 may include one or more processing units, such as: the processor 110 may include an application processor (application processor, AP), a modem processor, a graphics processor (graphics processing unit, GPU), an image signal processor (image signal processor, ISP), a controller, a video codec, a digital signal processor (digital signal processor, DSP), a baseband processor, and/or a neural network processor (neural-network processing unit, NPU), etc. Wherein the different processing units may be separate devices or may be integrated in one or more processors.

The controller can generate operation control signals according to the instruction operation codes and the time sequence signals to finish the control of instruction fetching and instruction execution.

A memory may also be provided in the 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 the processor 110 has just used or recycled. If the processor 110 needs to reuse the instruction or data, it can be called directly from the memory. Repeated accesses are avoided and the latency of the processor 110 is reduced, thereby improving the efficiency of the system.

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

The I2C interface is a bi-directional synchronous serial bus comprising a serial data line (SDA) and a serial clock line (derail clock line, SCL). In some embodiments, the processor 110 may contain multiple sets of I2C buses. The processor 110 may be coupled to the touch sensor 180K, charger, flash, camera 193, etc., respectively, through different I2C bus interfaces. For example: the processor 110 may be coupled to the touch sensor 180K through an I2C interface, such that the processor 110 communicates with the touch sensor 180K through an I2C bus interface to implement a touch function of the electronic device 100.

The I2S interface may be used for audio communication. In some embodiments, the processor 110 may contain 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 transmit an audio signal to the wireless communication module 160 through the I2S interface, to implement a function of answering a call through the bluetooth headset.

PCM interfaces may also be used for audio communication to sample, quantize and encode analog signals. In some embodiments, the audio module 170 and the wireless communication module 160 may be coupled through 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 to implement a function of answering a call through the 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 for asynchronous communications. The bus may be a bi-directional communication bus. It converts the data to be transmitted between serial communication and parallel communication. In some embodiments, a UART interface is typically 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 an audio signal to the wireless communication module 160 through a UART interface, to implement a function of playing music through a bluetooth headset.

The MIPI interface may be used to connect the processor 110 to peripheral devices such as a display 194, a camera 193, and the like. The MIPI interfaces include camera serial interfaces (camera serial interface, CSI), display serial interfaces (display serial interface, DSI), and the like. In some embodiments, processor 110 and camera 193 communicate through a CSI interface to implement the photographing functions of electronic device 100. The processor 110 and the display 194 communicate via a DSI interface to implement the display functionality of the electronic device 100.

The GPIO interface may be configured by software. The GPIO interface may be configured as a control signal or 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, an MIPI interface, etc.

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 transfer data between the electronic device 100 and a peripheral device. And can also be used for connecting with a headset, and playing audio through the headset. The interface may also be used to connect other electronic devices, such as AR devices, etc.

It should be understood that the interfacing relationship between the modules illustrated in the embodiments of the present application is only illustrative, and does not limit the structure of the electronic device 100. In other embodiments of the present application, the electronic device 100 may also use different interfacing manners, or a combination of multiple interfacing manners in the foregoing embodiments.

The charge management module 140 is configured to receive a charge input from a charger. The charger can be a wireless charger or a wired charger. In some wired charging embodiments, the charge management module 140 may receive a charging input of a wired charger through the USB interface 130. In some wireless charging embodiments, the charge management module 140 may receive 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 for connecting the battery 142, and the charge 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 to power 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 configured to monitor battery capacity, battery cycle number, battery health (leakage, impedance) and other parameters. In other embodiments, the power management module 141 may also be provided in the processor 110. In other embodiments, the power management module 141 and the charge 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 may also be multiplexed to improve the utilization of the antennas. For example: the antenna 1 may be multiplexed into 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 for wireless communication including 2G/3G/4G/5G, etc., applied to the electronic device 100. The mobile communication module 150 may include at least one filter, switch, power amplifier, low noise amplifier (low noise amplifier, LNA), etc. The mobile communication module 150 may receive electromagnetic waves from the antenna 1, perform processes such as filtering, amplifying, and the like on the received electromagnetic waves, and transmit the processed electromagnetic waves to the modem processor for demodulation. The mobile communication module 150 can amplify the signal modulated by the modem processor, and convert the signal into electromagnetic waves through the antenna 1 to radiate. 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 provided 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 the 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 transmits the demodulated low frequency baseband signal to the 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 sound signals through an audio device (not limited to the speaker 170A, the receiver 170B, etc.), or displays images 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 module, independent of the processor 110.

The wireless communication module 160 may provide solutions for wireless communication including wireless local area network (wireless local area networks, WLAN) (e.g., wireless fidelity (wireless fidelity, wi-Fi) network), bluetooth (BT), global navigation satellite system (global navigation satellite system, GNSS), frequency modulation (frequency modulation, FM), near field wireless communication technology (near field communication, NFC), infrared technology (IR), etc., as applied to the electronic device 100. The wireless communication module 160 may be one or more devices that integrate at least one communication processing module. The wireless communication module 160 receives electromagnetic waves via the antenna 2, modulates the electromagnetic wave signals, filters the 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, frequency modulate it, amplify it, and convert it to electromagnetic waves for radiation via the antenna 2.

In some embodiments, antenna 1 and mobile communication module 150 of electronic device 100 are coupled, and antenna 2 and wireless communication module 160 are coupled, such that electronic device 100 may communicate with a network and other devices through wireless communication techniques. The wireless communication techniques may include the Global System for Mobile communications (global system for mobile communications, GSM), general packet radio service (general packet radio service, GPRS), code division multiple access (code division multiple access, CDMA), wideband code division multiple access (wideband code division multiple access, WCDMA), time division code division multiple access (time-division code division multiple access, TD-SCDMA), long term evolution (long term evolution, LTE), BT, GNSS, WLAN, NFC, FM, and/or IR techniques, among others. The GNSS may include a global satellite positioning system (global positioning system, GPS), a global navigation satellite system (global navigation satellite system, GLONASS), a beidou satellite navigation system (beidou navigation satellite system, BDS), a quasi zenith satellite system (quasi-zenith satellite system, QZSS) and/or a satellite based augmentation system (satellite based augmentation systems, SBAS).

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

The display screen 194 is used to display images, videos, and the like. The display 194 includes a display panel. The display panel may employ a liquid crystal display (liquid crystal display, LCD), an organic light-emitting diode (OLED), an active-matrix organic light-emitting diode (AMOLED) or an active-matrix organic light-emitting diode (matrix organic light emitting diode), a flexible light-emitting diode (flex), a mini, a Micro led, a Micro-OLED, a quantum dot light-emitting diode (quantum dot light emitting diodes, QLED), or the like. In some embodiments, the electronic device 100 may include 1 or N display screens 194, N being a positive integer greater than 1.

The electronic device 100 may implement photographing functions through an ISP, a camera 193, a video codec, a GPU, a display screen 194, an application processor, and the like.

The ISP is used to process data fed back by the camera 193. For example, when photographing, the shutter is opened, light is transmitted to the camera photosensitive element through the lens, the optical signal is converted into an electric signal, and the camera photosensitive element transmits the electric signal to the ISP for processing and is converted into an image visible to naked eyes. ISP can also optimize 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 the 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 onto the photosensitive element. The photosensitive element may be a charge coupled device (charge coupled device, CCD) or a Complementary Metal Oxide Semiconductor (CMOS) phototransistor. The photosensitive element converts the optical signal into an electrical signal, which is then transferred to the ISP to be converted into a digital image signal. The ISP outputs the digital image signal to the DSP for processing. The DSP converts the digital image signal into an image signal in a standard RGB, YUV, or the like format. In some embodiments, 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 other digital signals besides digital image signals. For example, when the electronic device 100 selects a frequency bin, the digital signal processor is used to fourier transform the frequency bin energy, or the like.

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: dynamic picture experts group (movingpicture experts group, MPEG) 1, MPEG2, MPEG3, MPEG4, etc.

The NPU is a neural-network (NN) computing processor, and can rapidly process input information by referencing a biological neural network structure, for example, referencing a transmission mode between human brain neurons, and can also continuously perform self-learning. Applications such as intelligent awareness of the electronic device 100 may be implemented through the NPU, for example: image recognition, face recognition, speech recognition, text understanding, etc.

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

The internal memory 121 may be used to store computer executable program code including instructions. The internal memory 121 may include a storage program area and a storage data area. The storage program area may store an application program (such as a sound playing function, an image playing function, etc.) required for at least one function of the operating system, etc. The storage data area may store data created during use of the electronic device 100 (e.g., audio data, phonebook, etc.), and so on. 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 (universal flash storage, UFS), and the like. The processor 110 performs 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 through an audio module 170, a speaker 170A, a receiver 170B, a microphone 170C, an earphone interface 170D, an application processor, and the like. 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 a portion of the functional modules of the audio module 170 may be disposed in the processor 110.

The speaker 170A, also referred to as a "horn," is used to convert audio electrical signals into sound signals. The electronic device 100 may listen to music, or to hands-free conversations, through the speaker 170A.

A receiver 170B, also referred to as a "earpiece", is used to convert the audio electrical signal into a sound signal. When electronic device 100 is answering a telephone call or voice message, voice may be received by placing receiver 170B in close proximity to the human ear.

Microphone 170C, also referred to as a "microphone" or "microphone", is used to convert sound signals into electrical signals. When making a call or transmitting voice information, the user can sound near the microphone 170C through the mouth, inputting a sound signal to 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, and may implement a noise reduction function in addition to collecting sound signals. In other embodiments, the electronic device 100 may also be provided with three, four, or more microphones 170C to enable collection of sound signals, noise reduction, identification of sound sources, directional recording functions, etc.

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

The pressure sensor 180A is used to sense a pressure signal, and may convert 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 is of various types, such as a resistive pressure sensor, an inductive pressure sensor, a capacitive pressure sensor, and the like. The capacitive pressure sensor may be a capacitive pressure sensor comprising at least two parallel plates with conductive material. The capacitance between the electrodes changes when a force is applied to the pressure sensor 180A. 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 touch operation intensity according to the pressure sensor 180A. The electronic device 100 may also calculate the location of the touch based on the detection signal of the pressure sensor 180A. In some embodiments, touch operations that act on the same touch location, but at different touch operation strengths, may correspond to different operation instructions. For example: and executing an instruction for checking the short message when the touch operation with the touch operation intensity smaller than the first pressure threshold acts on the short message application icon. And executing an instruction for newly creating the short message when the touch operation with the touch operation intensity being greater than or equal to the first pressure threshold acts on the short message application icon.

The gyro sensor 180B may be used to determine a motion gesture of the electronic device 100. In some embodiments, the angular velocity of electronic device 100 about three axes (i.e., x, y, and z axes) may be determined by gyro 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 the shake angle of the electronic device 100, calculates the distance to be compensated by the lens module according to the angle, and makes the lens counteract the shake of the electronic device 100 through the reverse motion, so as to realize anti-shake. The gyro sensor 180B may also be used for navigating, somatosensory game scenes.

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

The magnetic sensor 180D includes a hall sensor. The electronic device 100 may detect the opening and closing of the flip cover using the magnetic sensor 180D. In some embodiments, when the electronic device 100 is a flip machine, the electronic device 100 may detect the opening and closing of the flip according to the magnetic sensor 180D. And then according to the detected opening and closing state of the leather sheath or the opening and closing state of the flip, the characteristics of automatic unlocking of the flip and the like are 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 may be detected when the electronic device 100 is stationary. The electronic equipment gesture recognition method can also be used for recognizing the gesture 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, the electronic device 100 may range using the distance sensor 180F to achieve quick 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 outward 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 may be determined that there is an object in the vicinity of the electronic device 100. When insufficient reflected light is detected, the electronic device 100 may determine that there is no object in the vicinity of the electronic device 100. The electronic device 100 can detect that the user holds the electronic device 100 close to the ear by using the proximity light sensor 180G, so as to automatically extinguish the screen for the purpose of saving power. The proximity light sensor 180G may also be used in holster mode, pocket mode to automatically unlock and lock the screen.

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

The fingerprint sensor 180H is used to collect a fingerprint. The electronic device 100 may utilize the collected fingerprint feature to unlock the fingerprint, access the application lock, photograph the fingerprint, answer the incoming call, etc.

The temperature sensor 180J is for detecting temperature. In some embodiments, the electronic device 100 performs a temperature processing strategy using the temperature detected by the temperature sensor 180J. For example, when the temperature reported by temperature sensor 180J exceeds a threshold, electronic device 100 performs a reduction in the performance of a processor located in the vicinity of temperature sensor 180J in order to reduce power consumption to implement thermal protection. In other embodiments, when the temperature is below another threshold, the electronic device 100 heats the battery 142 to avoid the low temperature causing the electronic device 100 to be abnormally shut down. In other embodiments, when the temperature is below a further threshold, the electronic device 100 performs boosting of the output voltage of the battery 142 to avoid abnormal shutdown caused by low temperatures.

The touch sensor 180K, 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 for detecting a touch operation acting thereon or thereabout. The touch sensor may communicate the detected touch operation to the application processor to determine the touch event type. Visual output related to touch operations may be provided through the display 194. In other embodiments, the touch sensor 180K may also be disposed on the surface of the electronic device 100 at a different location than the display 194.

The bone conduction sensor 180M may acquire a vibration signal. In some embodiments, bone conduction sensor 180M may acquire a vibration signal of a human vocal tract vibrating bone pieces. The bone conduction sensor 180M may also contact the pulse of the human body to receive the blood pressure pulsation signal. In some embodiments, bone conduction sensor 180M may also be provided in a headset, in combination with an osteoinductive headset. The audio module 170 may analyze the voice signal based on the vibration signal of the sound portion vibration bone block obtained by the bone conduction sensor 180M, so as to implement a voice function. The application processor may analyze the heart rate information based on the blood pressure beat signal acquired by the bone conduction sensor 180M, so as to implement a heart rate detection function.

The keys 190 include a power-on key, a volume key, etc. The keys 190 may be mechanical keys. Or may be a touch key. The electronic device 100 may receive key inputs, generating key signal inputs related to user settings and function controls of the electronic device 100.

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

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

The SIM card interface 195 is used to connect a SIM card. The SIM card may be inserted into the SIM card interface 195, or removed from the SIM card interface 195 to enable contact and separation with the electronic device 100. 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 Nano SIM cards, micro SIM cards, and the like. The same SIM card interface 195 may be used to insert multiple cards simultaneously. 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 realize functions such as communication and data communication. In some embodiments, the electronic device 100 employs esims, i.e.: 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 microkernel architecture, a microservice architecture, or a cloud architecture. In this embodiment, taking an Android system with a layered architecture as an example, a software structure of the electronic device 100 is illustrated.

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

The layered architecture divides the software into several layers, each with distinct roles and branches. The layers communicate with each other through a software interface. In some embodiments, the Android system is divided into four layers, from top to bottom, an application layer, an application framework layer, an Zhuoyun row (Android run) and system libraries, and a kernel layer, respectively.

The application layer may include a series of application packages.

As shown in fig. 2, the application package may include applications for cameras, gallery, calendar, phone calls, maps, navigation, WLAN, bluetooth, music, video, short messages, etc.

The application framework layer provides an application programming interface (application programming interface, API) and programming framework for application programs of the application layer. The application framework layer includes a number of predefined functions.

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

The window manager is used for managing window programs. The window manager can acquire 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 such data accessible to applications. The data may include video, images, audio, calls made and received, browsing history and bookmarks, phonebooks, 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, a display interface including a text message notification icon may include a view displaying text and a view displaying a picture.

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

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

The notification manager allows the application to display notification information in a status bar, can be used to communicate notification type messages, can automatically disappear after a short dwell, and does not require user interaction. Such as notification manager is used to inform that the download is complete, message alerts, etc. The notification manager may also be a notification in the form of a chart or scroll bar text that appears on the system top status bar, 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, a text message is prompted in a status bar, a prompt tone is emitted, the electronic device vibrates, and an indicator light blinks, etc.

Android run time includes a core library and virtual machines. Android run time is responsible for scheduling and management of the Android system.

The core library consists of 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. The virtual machine executes java files of the application program layer and the application program framework layer as binary files. The virtual machine is used for executing the functions of object life cycle management, stack management, thread management, security and exception management, garbage collection and the like.

The system library may include a plurality of functional modules. For example: surface manager (surface manager), media Libraries (Media Libraries), three-dimensional graphics processing Libraries (e.g., openGL ES), 2D graphics engines (e.g., SGL), etc.

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

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

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 workflow of the electronic device 100 software and hardware is illustrated below in connection with capturing a photo scene.

When 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 the original input event (including information such as touch coordinates, time stamp of touch operation, etc.). The original input event is stored at the kernel layer. The application framework layer acquires an original input event from the kernel layer, and identifies a control corresponding to the input event. Taking the touch operation as a touch click operation, taking a control corresponding to the click operation as an example of a control of a camera application icon, the camera application calls an interface of an application framework layer, starts the camera application, further starts a camera driver by calling a kernel layer, and captures a still image or video by 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, when the display of the inner screen and the outer screen is limited by the number of display conversion ports (such as DPHY ports) of the processor (typically, 2 display conversion ports), the folding screen mobile phone can only display the image data information of 2 sub-screens, but cannot display the image data information of all the screens at the same time. It will be appreciated that the problem may be solved by adding a new displayport, but adding a displayport to the original processor architecture would present a significant cost problem, including requirements on hardware devices and requirements on architecture design.

Further, the resolution of the existing folding screen mobile phone is relatively high, and in the case that the resolution of the inner screen or the outer screen of the folding screen mobile phone is too high, for example 2240x2480 (more than the display resolution supported by one display conversion port), 2 display conversion ports of the processor are required to be occupied. For example, in the case where the resolution of the screen in the folded screen is too high, two sub-screens need to be displayed occupying 2 display conversion ports of the processor. At this time, the inner and outer screens of the folding screen mobile phone cannot be displayed at the same time. In the prior art, the inner screen and the outer screen can be displayed separately, and the method can be realized by switching the display conversion interface channels of the inner screen and the outer screen through a switch.

Specifically, FIG. 3 shows a schematic diagram of a prior art architecture for a multi-screen display. 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 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 be understood that, in the multi-screen display scheme in the prior art, 3 sub-screens cannot be displayed simultaneously, for example, when an outer screen and an inner screen are displayed simultaneously, the inner screen and the outer screen can not be displayed simultaneously only by switching through a switch. In a specific application scenario, if a photographer and a photographer are required to see an image on a screen at the same time, such as when photographing a friend, the requirement cannot be met.

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

The multi-screen display electronic device includes:

the system 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 the number of screens of the electronic device.

The switch is used for switching the display conversion interface to the screen for display, or selecting a switching object of the display interface, the switching object of the display interface comprises a display interface and a 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 memory is used for storing instructions and data so that the processor can process the data according to the instructions and the data in time. The processor specifically includes an application processor AP, and may further include a modem processor, a graphics processor, an image signal processor, and other processors.

In one embodiment, the application processor includes a display interface and at least one display conversion interface that can display corresponding image data information on a screen of the electronic device based on the received data. The display interface is a display communication port that relies on packetized data transmission techniques such as those found in ethernet, USB and PCI (Pedpherd Component Interconnect, local bus) Express, among others. The display interface may be used for both internal and external display connections. It can be understood that the display conversion interface can directly display corresponding image data information on the screen of the electronic device according to the received data, and the display interface needs to realize the screen display of the electronic device by a data conversion mode, such as converting the display interface data into MIPI data.

In an embodiment, the display interface may implement data conversion specifically through a display adapter chip. In the embodiment of the application, a switch is provided for the display interface. The switch is capable of changing the connection path of the display interface. When the switch state is unchanged, the display interface keeps the own interface function, which is equivalent to not setting a switch; when the state of the switch is changed, the connection path of the display interface is a display transfer chip. Through the display switching chip, the display interface data can be converted into protocol interface data, so that screen display is realized according to the protocol interface data.

In this embodiment of the present application, when a plurality of screens of an electronic device cannot be displayed simultaneously, the display interface of the application processor is fully utilized, and by adding a switch and a display switching chip, on the premise of displaying the screen by using the display switching interface, the switching object of the display interface is further switched to the display switching chip by using the switch, and the display interface data is converted to the protocol interface data by using the display switching chip, and the multi-screen display of the electronic device can be realized according to the protocol interface data, so that the multi-screen simultaneous display of the electronic device can be realized under the condition of retaining the function of the display interface.

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

It will be appreciated that in a display communication protocol specifically used by an electronic device, the display interface may specifically be a DP (DisplayPort) interface. The DP interface is mainly used for connecting video source with display and other devices, and also supports carrying audio, USB and other forms of data. Further, the DP interface can be backward compatible with conventional interfaces (e.g., HDMI and DVI) through an active or passive adapter. It will be appreciated 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.

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

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

It will be appreciated that the high speed switch is applicable to high speed electronics, and for large scale, very large scale integrated circuits such as application processors, the switching of the connection paths may alternatively be implemented using a high speed switch. In an embodiment, the switch is used to switch the display switching interface to the screen display or to select a switch object of the display interface. The switch may be provided in plurality.

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

In an embodiment, the display switching chip may specifically be a DP2MIPI chip, and the DP2MIPI chip is used to convert DP data into MIPI data, so as to implement screen display.

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

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

Further, the electronic device also includes a display port, which is applied to the display interface, and which is also applied to interfaces with other types.

It will be understood that a port refers to a connection port to an external device, while an interface primarily emphasizes layer-to-layer interfacing in a communication data protocol layer.

In an embodiment, the electronic device may specifically further include a display port, for example, by connecting the external device to the display port, the image data information is displayed on a screen of the external device according to the acquired data.

It will be appreciated 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 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 a switch and a display switching chip.

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

Specifically, the display port is a DP/USB port. It is understood that the DP/USB interface is applied to the DP/USB port.

The DP/USB ports include, but are not limited to, DP/USB2.0 ports, DP/USB3.0 ports, 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 will be appreciated that an electronic device such as a folding screen mobile terminal comprises an inner screen and an outer screen, in particular the inner screen may comprise two sub-screens and the outer screen may comprise one screen.

Fig. 4 shows a schematic diagram of the architecture of the multi-screen display electronic device of the present application.

As can be seen from fig. 4, the electronic device comprises an application processor, wherein the application processor comprises 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 the screen 2 of the inner screen, the screen display can be realized through a DPHY2 interface. For the screen 3 of the external screen, when the screen 2 is not displayed. The display channel can be converted by the switch 1 to realize screen display, and the DP/USB interface can still be normally used at the moment; when the screen 2 is displayed, the switch 2 can be used for switching to the DP2MIPI chip, the DP2MIPI chip is used for converting DP data into MIPI data, and then the display of the screen 3 is realized. The DP/USB3.0 interface is also a 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, the 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 utilized on the premise of not changing the architecture of an application processor of the electronic device, so that the screen 3 can realize the screen display by using the DP/USB3.0 interface.

It will be appreciated that in the embodiment of the present application, if there are 3 display conversion interfaces (DPHY 1-DPHY 3), the display of 4 sub-screens can be supported by using the DP/USB3.0 interface. Other numbers of sub-screen display methods are similar and will not be described in detail herein.

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 display conversion interface is utilized to realize multi-screen display of the electronic equipment.

It will be appreciated that when the screen display of the electronic device meets the display requirements, i.e. the number of display conversion interfaces such as DPHY interfaces is sufficient, the screen display may be implemented directly. When the multi-screen display comprises the display of the inner screen and the outer screen, the switching display of the screens can be realized through a switch, for example, the inner screen comprises a screen 1 and a screen 2, the outer screen comprises a screen 3, and when the screen 1 and the screen 3 are required to be displayed, the display passage can be switched through the switch, and the screen 1 and the screen 2 are displayed.

S20: when the screen display of the electronic equipment does not meet the display requirement, the screen is displayed by utilizing the display conversion interface, the conversion object of the display interface is converted into the display conversion chip by utilizing 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 mentioned in the embodiment.

It can be understood that when the screen display of the electronic device does not meet the display requirement, that is, the number of the display conversion interfaces such as DPHY interfaces is insufficient, the display conversion interfaces can be beneficial to displaying the corresponding screen, the display conversion interfaces are absent, the conversion objects of the display interfaces can be converted into the display conversion chip by using the switch, and then the display interface data is converted into the protocol interface data according to the display conversion chip, so that the simultaneous display of multiple screens of the electronic device is realized by the protocol interface data.

In the embodiment of the application, by adding the switch and the display transfer chip, when a plurality of screens of the electronic equipment cannot be displayed simultaneously, the transfer object of the display interface is transferred to the display transfer chip by the switch on the premise of utilizing the display transfer interface to display the screens, the display interface data are converted into the protocol interface data by the display transfer chip, the multi-screen display is realized according to the protocol interface data, and the multi-screen simultaneous display of the electronic equipment can be realized under the condition of keeping the functions of the display interface.

The application also provides a multi-screen display mobile terminal, which comprises:

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 smaller than that of the mobile terminal screens;

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, the display port is applied to a display interface, and the display port is also applied to interfaces with other types.

Further, the display ports include, but are not limited to, a DP/USB port to which the DP/USB interface is applied.

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

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

The above explanation may refer to the multi-screen display mobile terminal provided in the present application, and will not be described in detail herein.

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

s30: when the screen display of the mobile terminal meets the display requirement, the display conversion interface is utilized to realize the multi-screen display of the mobile terminal.

It will be appreciated that when the screen display of the mobile terminal meets the display requirement, i.e. the number of display conversion interfaces such as DPHY interfaces is sufficient, the screen display may be directly implemented. When the multi-screen display comprises the display of the inner screen and the outer screen, the switching display of the screens can be realized through a switch, for example, the inner screen comprises a screen 1 and a screen 2, the outer screen comprises a screen 3, and when the screen 1 and the screen 3 are required to be displayed, the display passage can be switched through the switch, and the screen 1 and the screen 2 are displayed.

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 insufficient, the display conversion interfaces can be beneficial to displaying the corresponding screen, the display conversion interfaces are absent, the conversion objects of the display interfaces can be converted into the display conversion chip by using the switch, and then the display interface data is converted into the protocol interface data according to the display conversion chip, so that the simultaneous display of multiple screens of the mobile terminal is realized by the protocol interface data.

In the embodiment of the application, by adding the switch and the display transfer chip, when a plurality of screens of the mobile terminal cannot be displayed simultaneously, the transfer object of the display interface is transferred to the display transfer chip by the switch on the premise of utilizing the display transfer interface to display the screens, the display interface data are converted into the protocol interface data by the display transfer chip, the multi-screen display is realized according to the protocol interface data, and the multi-screen simultaneous display of the mobile terminal can be realized under the condition of keeping the functions of the display interface.

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 one 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 in use of the external screen and the internal screen is not in use, the display conversion interface and the switch are utilized to realize multi-screen display of the mobile terminal.

It can be understood that, for example, when the folding screen is in a folded state (folded inwards), the mobile terminal is in an outer screen for use, and the inner screen is not used, and at this time, the switch of the inner screen and the outer screen can be switched, so that the multi-screen display of the mobile terminal can be realized by using the display switching interface.

Further, in step S40, when the screen display of the mobile terminal meets the display requirement, the screen display of the mobile terminal is implemented by using the display conversion interface, which specifically includes: if only one of the sub-screens of the inner screen is displayed and the sub-screen is the sub-screen with the same switch as the outer screen, the multi-screen display of the mobile terminal is realized by switching the switches of the inner screen and the outer screen and utilizing the display switching interface; 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.

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

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 one display interface, and the switch is two, in step S40, 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 the conversion object of the display interface is converted into a display conversion chip by using the switch, the display interface data is converted into protocol interface data according to the display conversion chip, and 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 display conversion interface and the switch are utilized to display the screen, the conversion object of the display interface is converted into the display conversion chip by 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.

It will be appreciated 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 that a friend is photographed, if a photographer and a photographed person are required to see images on a screen at the same time, the inner screen and the outer screen of the folding screen are used at the same time; or when the conference is opened by adopting the folding screen, the speaker needs to operate the inner screen of the folding screen, and when the outer screen is displayed, the inner screen and the outer screen of the folding screen are used at the moment; or when the player plays the game face to face, the outer screen is used for displaying real-time battle condition information of the player, and the inner screen and the outer screen of the folding screen are used at the moment. For these cases, 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 realize the multi-screen display according to the protocol interface data.

In the embodiment of the application, by adding the switch and the display transfer chip, when a plurality of screens of the mobile terminal cannot be displayed simultaneously, the transfer object of the display interface is transferred to the display transfer chip by the switch on the premise of utilizing the display transfer interface to display the screen, the display interface data are converted into the protocol interface data by the display transfer chip, the multi-screen display is realized according to the protocol interface data, the display interface is fully utilized on the premise of not changing the architecture of the application processor of the mobile terminal, and the outer screen of the folding screen can realize the screen display through the display interface.

The application also proposes a multi-screen display electronic device, the data processing module of the screen of which comprises a static RAM, the multi-screen display electronic device comprising:

the system comprises a memory and a processor, wherein the processor comprises an application processor, 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 smaller than that of screens of electronic equipment, and the interface selection switch is used for transferring data output by the digital signal microprocessor to the display conversion interface;

the display transfer switch is used for switching signals of an output object of the display conversion interface and realizing screen display according to the data output by the display conversion interface, wherein the data selector is used for switching signals of the 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 ), multi-screen display of the electronic device can be realized also in the case that the number of display conversion interfaces such as DSI is smaller than the number of screens. The specific implementation is as follows: an interface selection switch is added in an application processor of the electronic equipment so as to enable data output by a digital signal microprocessor (DSP, digital Signal Processing) to be transferred 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 will be appreciated that since the data processing module of the electronic device screen includes static RAM, the data output by the application processor is not lost, and thus synchronous display of the internal screen and the external screen of the folding screen device can be achieved. Further, since the data displayed on the screen is continuously output, in an embodiment, a screen signal feedback pin is further provided in the electronic device, and a signal feedback pin for receiving the fed-back output signal in the application processor, the fed-back output signal can be switched by the data selector, so that the fed-back output information can be sequentially transmitted to the application processor without causing data collision.

DPHY is a physical layer of MIPI. In an embodiment, the display conversion interface may specifically use a DPHY interface. When the display conversion interface uses the DPHY interface, other interfaces for display communication in the electronic device should also use corresponding interfaces and display communication protocols, so that the electronic device can complete 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 display technology, is compatible with DPI (display pixel interface ), DBI (display bus interface, display Bus Interface) and 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, an error correction and detection mechanism, and the like. 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 be an interface of the DSI protocol in the DPHY.

Further, the types of the signal feedback pins and the screen signal feedback pins are TE pins.

The TE (output pin) may be used as a signal feedback pin and a screen signal feedback pin of the application processor in this embodiment.

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

It will be appreciated that, after setting the MIPI display transfer switch, the signal of the output object of the display transfer interface, that is, the screen for determining the data output, may be switched, for example, in the folding screen device, specifically, the signal of the MIPI display transfer switch may be switched to determine the data transmission to the screen 2 of the inner screen or the screen 3 of the outer screen.

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

Fig. 5 shows 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 realizes the switching between DSI1 and DSI2 through the interface selection switch (switch 3), wherein when no switch such as MIPI display switching switch (MIPI SW, switch 4) is provided on the data transmission path of DSI1, data will be directly transmitted to the screen 1 such as the inner screen large screen, and when MIPI display switching switch is provided on the data transmission path of DSI2, data will be selectively transmitted to the screen 2 of the inner screen large screen or the screen 3 of the outer screen based on the influence of the MIPI display switching switch switching signal, thereby realizing the switching of different screens. Further, since 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, 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 be further connected to a DP interface through an interface selection switch (switch 3), and display of the external extension screen is realized through the DP interface.

Fig. 6 shows a schematic diagram of a multi-screen display electronic device at the output signal feedback level.

As can be seen from fig. 6, the output signals are sent to the data selector (MUX) for signal conversion, so that the output signals of the inner screen TE and the outer screen TE can be effectively fed back to the application processor, and the application processor is instructed to send out data again without causing data collision.

Fig. 7 shows a flow chart of a multi-screen display electronic device for enabling multi-screen simultaneous display.

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

The multi-screen display electronic equipment utilizes the cooperation of the MIPI display transfer switch and the data selector to realize the multi-screen display function of the electronic equipment under the condition that the number of display transfer interfaces is less than the number of screens.

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

if a display transfer switch exists on a transmission channel of the display conversion interface, switching signals of an output object of the display conversion interface by using the display transfer switch based on display requirements, sending data output by the display conversion interface to a screen for determining 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 switching signals of output signals fed back by a screen signal feedback pin, and the switched output signals are 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.

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

It should be understood that the sequence number of each step in the foregoing embodiment does not mean that the execution sequence of each process should be determined by the function and the internal logic of each process, and should not limit the implementation process of the embodiment of the present application in any way.

It should be understood that the described embodiments are merely some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

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

The above embodiments are only for illustrating the technical solution of the present application, and are not limiting thereof; 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 schemes stored in the embodiments can be modified or part of technical features in the technical schemes can be replaced equivalently; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application, and are intended to be included in the scope of the present application.

Claims

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

at least two inner screens and at least one outer screen;

2. The electronic device of claim 1, wherein the display interface includes, 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, the number of switches being the same as the number of display conversion interfaces.

5. The electronic device of claim 1, wherein the display-transfer 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 display port, the display port being applied to a display interface, the display port being further applied to interfaces with other types.

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

10. The electronic device of any 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, the screen is displayed by utilizing a display conversion interface, a conversion object of the display interface is converted into a display conversion chip by utilizing a switch, the display interface data is converted into protocol interface data according to the display conversion chip, and multi-screen display is realized according to the protocol interface data, wherein the electronic equipment is the electronic equipment according to any one of claims 1-10.

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

at least two inner screens and at least one outer screen;

13. The mobile terminal of claim 12, wherein the display interface includes, but is not limited to, a DP interface.

14. The mobile terminal of claim 12, wherein the display conversion interface includes, but is not limited to, a DPHY interface.

15. The mobile terminal of claim 12, wherein the switches include, but are not limited to, high speed switches, the number of switches being the same as the number of display conversion interfaces.

16. The mobile terminal of claim 12, wherein the display-transfer chip includes, but is not limited to, a DP2MIPI chip.

17. The mobile terminal of claim 12, wherein the display interface data includes, but is not limited to, DP data.

18. The mobile terminal of claim 12, wherein the protocol interface data includes, but is not limited to MIPI data.

19. The mobile terminal of claim 12, further comprising a display port, the display port being applied to a display interface, the display port being further applied to interfaces with other types.

20. The mobile terminal of claim 19, wherein the display port includes, but is not limited to, a DP/USB port to which a DP/USB interface is applied.

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

23. A multi-screen display method of a mobile terminal, comprising:

when the screen display of the mobile terminal 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 mobile terminal is the mobile terminal according to any one of claims 12-22.

24. The method of claim 23, wherein the mobile terminal is a foldable mobile terminal, comprising 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 one screen, the mobile terminal comprises two display conversion interfaces and one display interface, the switch comprises two switches, and 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, comprising:

25. The method according to claim 23, wherein 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 one screen, the mobile terminal includes two display conversion interfaces and one display interface, the switch 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 the conversion object of the display interface is converted into a display conversion chip by using the switch, 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:

26. A multi-screen display electronic device comprising at least two inner screens and at least one outer screen;

the data processing module of the electronic device screen comprises a static RAM, and the multi-screen display electronic device comprises:

27. The electronic device of claim 26, wherein the display conversion interface includes, 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 type of signal feedback pin and the screen signal feedback pin is a TE pin.

30. The electronic device of claim 26, wherein the data output by the display conversion interface is MIPI data, the display transfer switch is a MIPI display transfer switch, and the display transfer switch 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 the 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, the electronic device comprising: at least two inner screens and at least one outer screen, comprising: