WO2019090772A1

WO2019090772A1 - Image processing method and apparatus for terminal

Info

Publication number: WO2019090772A1
Application number: PCT/CN2017/110720
Authority: WO
Inventors: 朱登奎; 张晓伟
Original assignee: 华为技术有限公司
Priority date: 2017-11-13
Filing date: 2017-11-13
Publication date: 2019-05-16
Also published as: CN110178111A; CN110178111B

Abstract

An image processing method and apparatus for a terminal, capable of mitigating the phenomenon of incomplete display image caused by overscan by a large-screen display during PC of a mobile terminal, thereby improving the display quality of the large-screen display. The method comprises: when a terminal is connected to an external display device, the terminal generates a target display image to be displayed for the external display device, a target region in the target display image being used for laying out display content in the target display image, the target region being a part of the target display image; the terminal sends the target display image to the external display device for displaying.

Description

Image processing method and device for terminal

Technical field

The embodiments of the present invention relate to the field of communications technologies, and in particular, to an image processing method and apparatus for a terminal.

Background technique

Personal computer (PC) is one of the important means to achieve mobile office. Specifically, the mobile terminal and the like can project the display content on the screen of the mobile phone to a large-screen display such as a PC through a wireless video display (Wi-Fi-Display) function or a Microsoft continuum function, so that the mobile phone is connected. It can also be used as a PC after a large screen display.

At present, some large-screen displays will turn on the overscan function during display to solve the distortion of the edges of the screen caused by the difference of analog circuit parameters in the large-screen display. Taking TV as a large-screen display, when the TV receives the source picture data to be played, as shown in Figure 1, the TV intercepts 95% of the source picture data from the source picture data, and then intercepts the source. The screen data is displayed in full screen on the TV.

In the application scenario of the mobile terminal PC, when the large screen display receives the source picture data sent by the mobile terminal such as the mobile phone, the received source picture data is still overscan, and the partial image information sent by the mobile phone is lost. The user does not display the screen when viewing the large screen display.

Summary of the invention

An embodiment of the present invention provides an image processing method and apparatus for a terminal. When the mobile terminal is PCized, the phenomenon that the display screen is incomplete due to over-scanning of the large-screen display can be improved, and the display quality of the large-screen display is improved.

To achieve the above objective, the embodiment of the present application adopts the following technical solutions:

In a first aspect, an embodiment of the present application provides an image processing method of a terminal, where the terminal is connected to an external display device, the method includes: the terminal generates a target display screen to be displayed for the external display device, where the target display area in the target display area For displaying the display content in the target display screen, the target area is a part of the target display screen; the terminal sends the target display screen to an external display device for display.

In this way, only a part of the target display screen sent by the terminal to the external display device has a substantial display content. After receiving the target display screen, the external display device can scan the target display image according to the display image processing flow, and overscan. The actual display content lost will be reduced, thereby improving the phenomenon that the display screen is incomplete due to over-scanning of the large-screen display, and improving the display quality of the large-screen display.

In a possible design method, before the terminal generates the target display screen to be displayed for the external display device, the method further includes: the terminal determining a display screen size, where the display screen size is a size of a screen sent to the external display device; The display screen has the display screen size. That is, the size of each display screen sent by the terminal to the external display device is the above-mentioned display screen size, but the area having the substantial display content in each display screen is reduced.

In a possible design method, the terminal generates a target display screen to be displayed for the external display device, and specifically includes: the terminal generates an initial display image for the content to be displayed by the external display device, where the initial display screen has the display screen size; Converting the initial display screen to the target display screen, the target display screen The display content of the target area is obtained by reducing the initial display screen.

In a possible design method, the terminal generates a target display screen to be displayed for the external display device, and specifically includes: the terminal filling the content displayed by the external display device in the target area to obtain the target display screen.

Then, when the area of the screen extracted by the external display device is greater than or equal to the area of the target area in the target display screen generated by the terminal, the information of the display screen received by the external display device is complete, and the display caused by overscan can be avoided. The picture is incomplete.

In a possible design method, before the terminal converts the initial display image into the target display screen, the method further includes: the terminal generating, by the external display device, a setting interface for adjusting a display screen size of the external display device, the setting interface Included in the at least one candidate screen size; the terminal sends the setting interface to an external display device for display; the terminal determines a scaling ratio between the initial display screen and the target area in the target display screen according to an input operation of the user on the setting interface .

In a possible design method, before the terminal fills the content to be displayed by the external display device in the target area, the method further includes: the terminal generating, by the external display device, a setting interface for adjusting a display screen size of the external display device, the setting The interface includes at least one candidate screen size; the terminal sends the setting interface to an external display device for display; and the terminal determines the size of the target area in the target display screen according to an input operation of the user on the setting interface.

In this way, the user can manually select the proportion of the display screen on the screen in the external display device, and select the screen size that suits his own usage habits.

In a possible design method, the setting interface further includes a screen preview effect of the external display device under the candidate screen size.

In a possible design method, the terminal generates a setting interface for adjusting the size of the display screen for the external display device, including: in response to the setting operation of the external display device by the user, the terminal generates an external display device for adjusting the display screen size. The setting interface; or, when the terminal is successfully connected to the external display device, the terminal generates a setting interface for adjusting the size of the display screen for the external display device.

In one possible design method, the target area is located at the center of the target display screen, and other areas of the target display screen except the target area are provided with a background color, for example, the background color may be set to black.

In a possible design method, the target ratio of the target area to the target display screen is less than or equal to the extraction ratio of the display screen when the external display device overscans. In this way, the area of the screen that is extracted when the external display device is overscan is greater than or equal to the area of the effective screen in the target display screen generated by the terminal. Therefore, the information of the display screen received by the external display device in the terminal PC-based scene is complete. Avoid the phenomenon that the display is incomplete due to overscan.

In a possible design method, the terminal determines the display screen size, including: the terminal acquires the resolution supported by the external display device; and the terminal determines the display screen size according to the resolution supported by the external display device.

In a second aspect, an embodiment of the present application provides an image processing method of a terminal, where the terminal is connected to an external display device, the method includes: the terminal sends the generated initial display image to an external display device for display; and the terminal is used to adjust the external The setting interface of the display screen size of the display device is sent to an external display device for display, the setting interface includes at least one candidate screen size; and the target display screen generated by the terminal in response to the target screen size selected by the user in the candidate screen size Send to an external display device for display, the target display The screen has the same size as the initial display screen, and the display content of the target area in the target display screen is obtained by reducing the initial display screen, and the size of the target area is the target screen size.

In a third aspect, an embodiment of the present application provides a terminal, including: a generating unit, configured to generate, for an external display device, a target display screen to be displayed, where a target area in the target display screen is used to layout the target display screen The content is displayed, the target area is a part of the target display screen, and the transceiver unit is configured to send the target display screen to an external display device for display.

In a possible design method, the terminal further includes: a determining unit, configured to determine a display screen size, the size of the screen sent to the external display device; the target display screen has the display screen size.

In a possible design method, the generating unit is specifically configured to generate an initial display image for the content to be displayed by the external display device, where the initial display screen has the display screen size; and the terminal converts the initial display image into the target display In the screen, the display content of the target area in the target display screen is obtained by reducing the initial display screen.

In a possible design method, the generating unit is specifically configured to fill the target area with the content to be displayed by the external display device to obtain the target display screen.

In a possible design method, the generating unit is further configured to generate, by the external display device, a setting interface for adjusting a display screen size of the external display device, where the setting interface includes at least one candidate screen size; the transceiver unit, And the determining unit is further configured to: determine, according to an input operation of the user on the setting interface, a scaling ratio between the initial display screen and the target area in the target display screen. .

In a possible design method, the generating unit is further configured to generate, by the external display device, a setting interface for adjusting a display screen size of the external display device, where the setting interface includes at least one candidate screen size; the transceiver unit, The determining unit is further configured to send the setting interface to the external display device for display; the determining unit is further configured to determine a size of the target area in the target display screen according to an input operation of the user on the setting interface.

In a possible design method, the generating unit is specifically configured to generate a setting interface for adjusting the size of the display screen for the external display device in response to a setting operation of the external display device by the user; or, when the terminal and the external display device When the connection is successful, a setting interface for adjusting the size of the display screen is generated for the external display device.

In a possible design method, the transceiver unit is further configured to obtain a resolution supported by the external display device. The determining unit is specifically configured to determine the display screen size according to a resolution supported by the external display device.

In a fourth aspect, an embodiment of the present application provides a terminal, where the terminal is connected to an external display device, where the terminal includes a processor, a memory, and a transceiver connected through a bus, where the processor is configured to generate a display to be displayed for the external display device. a target display screen, the target area in the target display screen is used to layout the display content in the target display screen, the target area is a part of the target display screen; the transceiver is configured to send the target display screen to External display device for display

In a possible design method, before generating a target display screen to be displayed for an external display device, the processor is further configured to determine a display screen size, where the display screen size is a size of a screen sent to the external display device; The target display screen has the display screen size.

In a possible design method, the processor is specifically configured to generate an initial display image for the content to be displayed by the external display device, where the initial display screen has the display screen size; and the terminal converts the initial display image A screen is displayed for the target, and the display content of the target area in the target display screen is obtained by reducing the initial display screen.

In a possible design method, the processor is specifically configured to fill the content to be displayed by the external display device in the target area to obtain the target display screen.

In a possible design method, the processor is further configured to generate, by the external display device, a setting interface for adjusting a display screen size of the external display device, where the setting interface includes at least one candidate screen size; the transceiver, The method is further configured to send the setting interface to an external display device for display; receiving an input operation of the user on the setting interface; the processor is further configured to determine a scaling ratio between the initial display screen and the target area in the target display screen .

In a possible design method, the processor is further configured to generate, by the external display device, a setting interface for adjusting a display screen size of the external display device, where the setting interface includes at least one candidate screen size; the transceiver, The method is further configured to send the setting interface to an external display device for display; receiving an input operation of the user in the setting interface; the processor is further configured to determine the target area in the target display screen according to an input operation of the user on the setting interface size of.

In a possible design method, the processor is specifically configured to: generate a setting interface for adjusting the size of the display screen for the external display device in response to a setting operation of the external display device by the user; or, when the terminal and the external display When the device is successfully connected, a setting interface for adjusting the size of the display screen is generated for the external display device.

In one possible design method, the target area is located at the center of the target display screen, and other areas of the target display screen except the target area are provided with a background color.

In a possible design method, the target ratio of the target area to the target display screen is less than or equal to the extraction ratio of the display screen when the external display device overscans.

In a possible design method, the transceiver is further configured to obtain a resolution supported by the external display device; and the processor is specifically configured to determine the display screen size according to a resolution supported by the external display device.

In a fifth aspect, an embodiment of the present application provides a terminal, where the terminal is connected to an external display device, where the terminal includes a processor, a memory, and a transceiver connected by a bus, where the processor is configured to generate an initial display for the external display device. a setting interface for adjusting a display screen size of the external display device; generating a target display screen for the external display device, the target display screen having the same size as the initial display screen, and the display content of the target area in the target display screen Obtained by the initial display screen, the size of the target area is the target screen size; the transceiver is configured to send the initial display screen to an external display device for display; and send the setting interface to the external display device Display; send the target display to an external display device for display.

In a sixth aspect, an embodiment of the present application provides a computer readable storage medium, where the computer readable storage medium stores an instruction, when the instruction is run on any one of the foregoing terminals, causing the terminal to perform any of the foregoing image processing. method.

In a seventh aspect, an embodiment of the present application provides a computer program product including instructions, when the terminal runs on any of the foregoing terminals, causing the terminal to execute any of the above image processing methods.

In the embodiment of the present application, the names of the components in the terminal are not limited to the device itself, and the actual implementation is These parts can now appear under other names. As long as the functions of the various components are similar to the embodiments of the present application, they are within the scope of the claims and their equivalents.

In addition, the technical effects brought by the design method of any one of the second aspect to the seventh aspect can be referred to the technical effects brought by different design methods in the above first aspect, and details are not described herein again.

DRAWINGS

1 is a schematic diagram of an application scenario of overscan in the prior art;

FIG. 2 is a schematic diagram 1 of an application scenario of an image processing method according to an embodiment of the present disclosure;

FIG. 3 is a schematic diagram 2 of an application scenario of an image processing method according to an embodiment of the present disclosure;

FIG. 4 is a schematic diagram 3 of an application scenario of an image processing method according to an embodiment of the present disclosure;

FIG. 5 is a schematic structural diagram of a terminal according to an embodiment of the present application;

FIG. 6 is a schematic diagram 4 of an application scenario of an image processing method according to an embodiment of the present disclosure;

FIG. 7 is a schematic diagram 5 of an application scenario of an image processing method according to an embodiment of the present disclosure;

FIG. 8 is a schematic diagram of interaction of an image processing method according to an embodiment of the present application;

FIG. 9 is a schematic diagram 6 of an application scenario of an image processing method according to an embodiment of the present disclosure;

FIG. 10 is a schematic diagram 7 of an application scenario of an image processing method according to an embodiment of the present disclosure;

FIG. 11 is a schematic diagram 8 of an application scenario of an image processing method according to an embodiment of the present disclosure;

FIG. 12 is a schematic diagram 9 of an application scenario of an image processing method according to an embodiment of the present disclosure;

FIG. 13 is a schematic diagram of an application scenario of an image processing method according to an embodiment of the present disclosure;

FIG. 14 is a schematic diagram of an application scenario of an image processing method according to an embodiment of the present disclosure;

FIG. 15 is a schematic diagram of an application scenario of an image processing method according to an embodiment of the present application;

FIG. 16 is a schematic diagram of an application scenario of an image processing method according to an embodiment of the present application;

16B is a schematic diagram of an application scenario of an image processing method according to an embodiment of the present disclosure;

FIG. 17 is a schematic diagram of an application scenario of an image processing method according to an embodiment of the present application;

FIG. 18 is a schematic diagram of an application scenario of an image processing method according to an embodiment of the present application;

FIG. 19 is a schematic structural diagram 2 of a terminal according to an embodiment of the present disclosure;

FIG. 20 is a schematic structural diagram 3 of a terminal according to an embodiment of the present application.

Detailed ways

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

The image processing method of the terminal provided by the embodiment of the present invention can be applied to the terminal, and can be specifically applied to the process of displaying the display screen of the terminal to the display on the external display device when the terminal is connected to the external display device.

In the embodiment of the present application, the terminal may be connected to the external display device through the switching device, or the terminal may be connected to the external display device by way of wireless connection. Moreover, when the terminal is connected to the external display device, the external display device can be connected to an external device (such as a keyboard and/or a mouse), and the external display device can also be connected to the external device.

For example, the terminal in the embodiment of the present invention may be a mobile phone, a tablet computer, a wearable device, and an enhanced present. Augmented reality (AR)\virtual reality (VR) devices, laptops, ultra-mobile personal computers (UMPCs), netbooks, personal digital assistants (PDAs), etc. The embodiment of the invention does not impose any limitation on this. The external display device in the embodiment of the present invention may be any display device such as a display of a PC, a television, a tablet, or a projector.

Exemplarily, the following describes the connection mode between the terminal and the external display device by using the above terminal as the mobile phone and the external display device as the display:

As shown in FIG. 2, the handset 110 can be connected to the display 120 via the transit device 130. The switching device 130 can be connected to a Universal Serial Bus (USB) interface of the mobile phone data line, and the Type-c interface of the terminal data line is plugged into the mobile phone 110. The switching device 130 can also be connected to the display 120 through a patch cord, which can include a high definition multimedia interface (HDMI) cable, a video graphics array (AGI) cable, and a digital video interface. (digital visual interface, DVI) connection line or the like.

The switching device 130 in the embodiment of the present invention may be a mobile high-definition link (MHL) device, and the MHL device can simultaneously transmit audio or video signals in the mobile terminal (such as a mobile phone) to the external device. Displayed on the display device (ie, display 120 described above).

Alternatively, as shown in FIG. 3, the handset 110 can be coupled to the display 120 via a wireless connection 201. The wireless connection 201 may specifically be a Bluetooth connection or a wireless-fidelity (Wi-Fi) connection.

As shown in FIG. 2 or FIG. 3, after the mobile phone 110 is connected to the display 120, the switching device 130 can be connected to the external display device without using a keyboard and/or a mouse. Alternatively, the switching device 130 may further include an interface for connecting a keyboard and a mouse for connecting a keyboard and a mouse. Of course, the keyboard and keyboard and mouse can also be connected to the mobile phone 110 wirelessly.

Alternatively, the handset can also be connected to the display 120 via a Dock device 122 as shown in FIG. The mobile phone 110 can also be connected to a keyboard and a mouse. For example, the keyboard and mouse can be connected to the Dock device 122 via a cable, or the keyboard and mouse can be connected to the handset 110 or Dock device 122 by way of a wireless connection. The Dock device 122 can be one of the above MHL devices.

As shown in FIG. 5, it is a schematic structural diagram of the above-mentioned mobile phone 110. It should be understood that the illustrated mobile phone 110 is only one example of the above terminal, and the mobile phone 110 may have more or fewer components than those shown in the figure, two or more components may be combined, or Has a different component configuration.

As shown in FIG. 5, the mobile phone 110 may specifically include: a processor 101, a radio frequency (RF) circuit 102, a memory 103, a touch screen 104, a Bluetooth device 105, one or more sensors 106, and wireless fidelity (WIreless-Fidelity). Wi-Fi device 107, positioning device 108, audio circuit 109, peripheral interface 110, and power system 111 and the like. These components can communicate over one or more communication buses or signal lines (not shown in Figure 5). Those skilled in the art will appreciate that the hardware structure illustrated in FIG. 5 does not constitute a limitation to a handset, and that handset 110 may include more or fewer components than those illustrated, or some components may be combined, or different components may be arranged.

The various components of the mobile phone 110 will be specifically described below with reference to FIG. 5:

The processor 101 is a control center of the mobile phone 110, and connects various parts of the mobile phone 110 using various interfaces and lines, and executes the mobile phone 110 by running or executing an application stored in the memory 103 and calling data stored in the memory 103. Various functions and processing data. In some embodiments, the processor 101 may include one or more processing units; for example, the processor 101 may be a Kirin 960 chip manufactured by Huawei Technologies Co., Ltd. In some embodiments of the present application, the processor 101 may further include a fingerprint verification chip for verifying the collected fingerprint.

The radio frequency circuit 102 can be used to receive and transmit wireless signals during transmission or reception of information or calls. In particular, the radio frequency circuit 102 can process the downlink data of the base station and then process it to the processor 101; in addition, transmit the data related to the uplink to the base station. Generally, radio frequency circuits include, but are not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency circuit 102 can also communicate with other devices through wireless communication. The wireless communication can use any communication standard or protocol, including but not limited to global mobile communication systems, general packet radio services, code division multiple access, wideband code division multiple access, long term evolution, email, short message service, and the like.

The memory 103 is used to store applications and data, and the processor 101 executes various functions of the mobile phone 110 and data processing by running applications and data stored in the memory 103. The memory 103 mainly includes a storage program area and a storage data area, wherein the storage program area can store an operating system, an application required for at least one function (such as a sound playing function, an image playing function, etc.); the storage data area can be stored according to the use of the mobile phone. Data created at 110 o'clock (such as audio data, phone book, etc.). Further, the memory 103 may include a high speed random access memory (RAM), and may also include a nonvolatile memory such as a magnetic disk storage device, a flash memory device, or other volatile solid state storage device. The memory 103 can store various operating systems, for example, developed by Apple.

Operating system, developed by Google Inc.

Operating system, etc. The above memory 103 may be independent and connected to the processor 101 via the above communication bus; the memory 103 may also be integrated with the processor 101.

The touch screen 104 may specifically include a touch panel 104-1 and a display 104-2.

The touch panel 104-1 can collect touch events on or near the user of the mobile phone 110 (such as the user using a finger, a stylus, or the like on the touch panel 104-1 or on the touchpad 104. The operation near -1), and the collected touch information is sent to other devices (for example, processor 101). The touch event of the user in the vicinity of the touch panel 104-1 may be referred to as a hovering touch; the hovering touch may mean that the user does not need to directly touch the touchpad in order to select, move or drag a target (eg, an icon, etc.) And only the user is located near the terminal in order to perform the desired function. In addition, the touch panel 104-1 can be implemented in various types such as resistive, capacitive, infrared, and surface acoustic waves.

A display (also referred to as display) 104-2 can be used to display information entered by the user or information provided to the user as well as various menus of the handset 110. The display 104-2 can be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The touchpad 104-1 can be overlaid on the display 104-2, and when the touchpad 104-1 detects a touch event on or near it, it is transmitted to the processor 101 to determine the type of touch event, and then the processor 101 may provide a corresponding visual output on display 104-2 depending on the type of touch event. Although in FIG. 5, the touchpad 104-1 and the display 104-2 are implemented as two separate components to implement the input and output functions of the handset 110, in some embodiments, the touchpad 104- 1 and display 104-2 Integration and implementation of the input and output functions of the handset 110.

It is to be understood that the touch screen 104 is formed by stacking a plurality of layers of materials. In the embodiment of the present application, only the touch panel (layer) and the display screen (layer) are shown, and other layers are not described in the embodiment of the present application. . In addition, the touch panel 104-1 may be disposed on the front surface of the mobile phone 110 in the form of a full-board, and the display screen 104-2 may also be disposed on the front surface of the mobile phone 110 in the form of a full-board, so that the front side of the mobile phone can be borderless. Structure.

The mobile phone 110 may also include a Bluetooth device 105 for enabling data exchange between the handset 110 and other short-range terminals (eg, mobile phones, smart watches, etc.). The Bluetooth device in the embodiment of the present application may be an integrated circuit or a Bluetooth chip or the like.

The handset 110 may also include at least one sensor 106, such as a fingerprint acquisition device 112, a light sensor, a motion sensor, and other sensors. Specifically, the fingerprint capture device 112 can be configured on the back of the handset 110 (eg, below the rear camera) or on the front side of the handset 110 (eg, below the touch screen 104). For another example, the fingerprint collection device 112 can be configured in the touch screen 104 to implement the fingerprint recognition function, that is, the fingerprint collection device 112 can be integrated with the touch screen 104 to implement the fingerprint recognition function of the mobile phone 110; the light sensor can include an ambient light sensor and a proximity sensor. The ambient light sensor can adjust the brightness of the display of the touch screen 104 according to the brightness of the ambient light, and the proximity sensor can turn off the power of the display when the mobile phone 110 moves to the ear. As a kind of motion sensor, the accelerometer sensor can detect the magnitude of acceleration in all directions (usually three axes). When it is stationary, it can detect the magnitude and direction of gravity. It can be used to identify the gesture of the mobile phone (such as horizontal and vertical screen switching, related Game, magnetometer attitude calibration), vibration recognition related functions (such as pedometer, tapping), etc. As for the mobile phone 110 can also be configured with gyroscopes, barometers, hygrometers, thermometers, infrared sensors and other sensors, here Let me repeat.

The Wi-Fi device 107 is configured to provide the mobile phone 110 with network access complying with the Wi-Fi related standard protocol, and the mobile phone 110 can access the Wi-Fi access point through the Wi-Fi device 107, thereby helping the user to send and receive emails. Browsing web pages and accessing streaming media, etc., it provides users with wireless broadband Internet access. In some other embodiments, the Wi-Fi device 107 can also function as a Wi-Fi wireless access point, and can provide Wi-Fi network access to other terminals.

The positioning device 108 is configured to provide a geographic location for the mobile phone 110. It can be understood that the positioning device 108 can be specifically a receiver of a positioning system such as a global positioning system (GPS) or a Beidou satellite navigation system, and a Russian GLONASS. After receiving the geographical location transmitted by the positioning system, the positioning device 108 sends the information to the processor 101 for processing, or sends it to the memory 103 for storage. In still other embodiments, the positioning device 108 may also be an assisted global positioning system (AGPS) receiver, and the AGPS system assists the positioning device 108 in performing ranging and positioning services by acting as an auxiliary server. In this case, the secondary location server provides location assistance over a wireless communication network in communication with a location device 108 (i.e., a GPS receiver) of the terminal, such as handset 110. In still other embodiments, the positioning device 108 can also be a Wi-Fi access point based positioning technology. Since each Wi-Fi access point has a globally unique media access control (MAC) address, the terminal can scan and collect the surrounding Wi-Fi access points when Wi-Fi is turned on. Broadcast signal, so you can get the Wi-Fi access point to broadcast MAC address; the terminal sends the data (such as the MAC address) capable of indicating the Wi-Fi access point to the location server through the wireless communication network, and the location server retrieves the geographic location of each Wi-Fi access point and combines The degree of strength of the Wi-Fi broadcast signal is calculated and the geographic location of the terminal is calculated and sent to the location device 108 of the terminal.

The audio circuit 109, the speaker 113, and the microphone 114 can provide an audio interface between the user and the handset 110. The audio circuit 109 can transmit the converted electrical data of the received audio data to the speaker 113 for conversion to the sound signal output by the speaker 113; on the other hand, the microphone 114 converts the collected sound signal into an electrical signal by the audio circuit 109. After receiving, it is converted into audio data, and then the audio data is output to the RF circuit 102 for transmission to, for example, another mobile phone, or the audio data is output to the memory 103 for further processing.

The peripheral interface 110 is used to provide various interfaces for external input/output devices (such as a keyboard, a mouse, an external display, an external memory, a subscriber identity module card, etc.). For example, it is connected to the mouse through a universal serial bus (USB) interface, and is connected with a subscriber identification module (SIM) card provided by the telecommunication operator through a metal contact on the card slot of the subscriber identification module. . Peripheral interface 110 can be used to couple the external input/output peripherals described above to processor 101 and memory 103.

The mobile phone 110 may further include a power supply device 111 (such as a battery and a power management chip) that supplies power to the various components. The battery may be logically connected to the processor 101 through the power management chip to manage charging, discharging, and power management through the power supply device 111. And other functions.

Although not shown in FIG. 5, the mobile phone 110 may further include a camera (front camera and/or rear camera), a flash, a micro projection device, a near field communication (NFC) device, etc., and will not be described herein. .

In the embodiment of the present application, when the mobile phone 110 is connected to the external display device 120, the mobile phone 110 is equivalent to having two displays, one is the display of the mobile phone 110 itself, and the other is the display of the external display device 120 connected thereto. The mobile phone 110 can project an application installed on the mobile phone 110 to the display of the external display device 120 by a method of homologous display or heterogeneous display.

The homologous display refers to different monitors, for example, the display of the mobile phone 110 and the display source of the display device of the external display device 120 are the same; and the heterogeneous display refers to the signal of the display screen of the mobile phone 110. The source is independent of the signal source of the display screen in the display of the external display device 120.

When the mobile phone 110 homogenously projects its installed application onto the display of the external display device 120, as shown in FIG. 6, before the mobile phone 110 establishes a connection with the external display device 120, the mobile phone 110 will generate the displayed display content to be displayed. Stored in a specified location in the memory (the area in the application where the display content to be displayed on the screen is to be referred to as a screen container). In this way, the display of the mobile phone 110 can display the related picture by reading the display content in the screen container. After the mobile phone 110 establishes a connection with the external display device 120, as shown in FIG. 6, the mobile phone 110 can transmit the display content in the screen container to the external display device 120, so that the external display device 120 displays the same display content as the mobile phone 110. The mobile phone 110 is displayed in synchronization with the external display device 120.

When the mobile phone 110 heterogeneously projects its installed application onto the display of the external display device 120, as shown in FIG. 7, before the mobile phone 110 establishes a connection with the external display device 120, the mobile phone 110 will generate the displayed display content to be displayed. 1 is stored in the screen container 1 of the memory, such that the display of the mobile phone 110 is read by the screen container The display content 1 in 1 can display the related screen.

When the mobile phone 110 establishes a connection with the external display device 120, the mobile phone 110 can identify relevant specification information of the display of the external display device 120 connected thereto, for example, the resolution of the display of the external display device 120 and the dots per inch (dots per inch, DPI) and so on. At this time, the mobile phone 110 can establish a separate screen container for the external display device 120 in its own memory according to the specification information of the display of the external display device 120, that is, the screen container 2 in FIG. 7, wherein the screen container 2 and the screen container 1 can be distinguished by different display IDs.

Generally, for an application that supports display on the mobile phone 110 and supports display on the external display device 120, such an application generally stores two display resources in the mobile phone 110, one display resource corresponding to the mobile phone 110, and another display resource corresponding to the mobile phone 110. One display resource corresponds to the external display device 120, and the same display content (eg, an icon of an application) may have different layouts and display effects in different display resources. Then, after the mobile phone 110 is connected to the external display device 120, as shown in FIG. 7, the mobile phone 110 can read the display resource stored by the external display device 120, the application icon, the icon layout, the status bar, and the like in the display resource. The desktop display content is stored in the screen container 2. In this way, after the mobile phone 110 transmits the display content in the screen container 2 to the external display device 120, the icons and/or interfaces of the respective applications installed on the mobile phone 110 can be independently projected onto the display of the external display device 120. Subsequently, the mobile phone 110 and the external display device 120 can independently run two display screens under the same operating system according to the display contents in the respective screen containers.

Of course, in the heterogeneous projection system shown in FIG. 7, the display content in the screen container 1 may also be the same as the display content in the screen container 2, for example, the display content in the screen container 1 and the display content in the screen container 2. It is the display interface of the 10th minute of video A. In this way, the display content in the display of the mobile phone 110 can be simultaneously displayed in the display of the external display device 120.

It should be noted that the above-mentioned screen container may specifically be a cache queue for storing the display content generated by each task in the task queue when the terminal (for example, the mobile phone 110) runs each task in the task queue. Generally, the task at the head of the task queue is the task that the current terminal is running. The display content generated by the terminal when running the task can be stored in the queue head of the cache queue. The display of the terminal always reads the queue queue. The display content is displayed.

In the following, the image processing method of the terminal provided by the embodiment of the present application is described in detail in conjunction with the principle of the screen projection shown in FIG. 2 to FIG. 7. As shown in FIG. 8, the method includes:

S701. The terminal is connected to an external display device.

Exemplarily, as shown in any of Figures 2 to 4, the terminal can connect to the external display device by means of a wired connection or a wireless connection.

S702. The terminal determines a display screen size when the display screen is subsequently sent to the external display device.

When the terminal is connected to the external display device, the terminal can detect display parameters such as the resolution of the external display device, and further determine the display screen size of the display screen that needs to be sent to the external display device. For example, if the external display device supports the image display in the 1080P format, the terminal may determine that the display screen size of the display screen sent to the external display device is a display screen of 1920×1080 resolution corresponding to the 1080P format.

For example, the terminal may display a "large screen projection welcome interface" 117 as shown in FIG. 2 or FIG. 3 on its display screen. At the same time, the terminal can generate a "Welcome to use large screen projection" prompt 121 for the external display device, and the prompt The language 121 is sent to the external display device such that the external display device displays the "Welcome to Use Large Screen Projection" prompt 121 as shown in FIG. 2 or FIG.

Exemplarily, with FIG. 2 as an example, the terminal may display an operation description for performing a large screen projection function in the “large screen projection welcome interface” 117. When the user clicks the "Skip" option 113 in the "Large Screen Projection Welcome Screen" 117 shown in the terminal in FIG. 2, or after the terminal displays the "Large Screen Projection Welcome Screen" 117 shown in FIG. 2 for a certain period of time, the terminal can A terminal interface 801 as shown in FIG. 9 is displayed on the display screen of the terminal, and a large screen interface 802 as shown in FIG. 9 is displayed on the external display device according to the determined display screen size.

When the external display device displays the large screen interface 802, if the option of the overscan is selected in the system setting of the external display device, the external display device intercepts the display at the center of the large screen interface 802 sent from the terminal by 95%. The content is displayed. At this time, as shown in FIG. 10, the display screen of the external display device is a large screen interface 802'. Since the display content of the original large screen interface 802 is not extracted when the external display device performs overscan, the large screen after overscan Edge 803 on interface 802' may present an incomplete display.

S703. The external display device displays a setting interface for adjusting a display screen size of the external display device.

In step S702, in order to avoid the phenomenon that the display screen is incomplete due to overscan when the terminal projects the screen to the external display device, after the terminal establishes a connection with the external display device to complete the initialization process of the display of the external display device, as shown in FIG. The external display device can display a setting interface 1001 for adjusting the size of its display screen.

Exemplarily, the user can perform a right-click operation on the large-screen interface 802 (or the large-screen interface 802') of the external display device by using a mouse, and the external display device sends the right-click operation input by the user to the terminal, and the terminal responds to the right-click operation as The external display device generates a right-click menu and sends the right-click menu to the external display device for display. The right-click menu may include a screen setting option for adjusting the size of the display screen. Then, when the external display device detects that the user selects the screen setting option in the right-click menu, the display setting interface 1001 may be requested from the terminal. After receiving the request from the external display device, the terminal generates the setting interface 1001 shown in FIG. 11 for the external display device, and sends it to the external display device for display.

Alternatively, as shown in FIG. 12, the terminal can also enter the analog keyboard and mouse function, and the touch panel interface 1101 shown in FIG. 12 is displayed on the display screen of the terminal. Thus, when the user's finger 1104 contacts the touchpad interface 1101 shown in FIG. 12 and moves on the touchpad interface 1101, the corresponding movement of the cursor in the largescreen interface 1102 shown in FIG. 12 can be controlled. Then, the user can perform the above-mentioned right-click operation and the selection operation of the above-mentioned screen setting options on the external display device through the touch panel interface 1101, and trigger the terminal to generate the setting interface 1001 shown in FIG. 11 for the external display device, and send the setting interface 1001 to the external display device. Display.

Alternatively, after the terminal is successfully connected to the external display device, the terminal can automatically trigger the terminal to generate the setting interface 1001 shown in FIG. 11 for the external display device, and send the display interface 1001 to the external display device for display. .

Specifically, the size of the plurality of candidate screen sizes may be included in the setting interface 1001. As shown in FIG. 11, the setting interface 1001 includes three candidate screen sizes, one is a full screen screen size 1101 in which the display screen is full of the screen, and the other is a moderate screen size 1102 in which the display screen accounts for 95% of the screen, and the other is a display. The screen occupies 85% of the screen with a smaller screen size of 1103.

Moreover, as shown in FIG. 11, the setting interface 1001 also shows the painting of each candidate screen size. Preview the effect. The preview effect of each screen may be a preview effect of any display screen when the external display device does not perform overscan processing, or may be an arbitrary display ratio according to the default extraction ratio (for example, 95% of the screen extraction ratio) of the display screen according to overscan. The preview effect of the screen after the overscan is performed, and the embodiment of the present application does not impose any limitation on this.

Taking the moderate screen size 1102 of the screen occupying 95% of the screen as an example, when the terminal transmits a subsequent display screen to be displayed to the external display device (for example, the large screen interface 802 shown in FIG. 9), as shown in FIG. The image in the large screen interface 802 (ie, the initial display screen) is reduced by 95% from the original full screen screen size, and the image reduced by 95% is adjusted to the center of the large screen interface to obtain a target display screen equal in size to the initial display screen. At this time, in the target display screen, 95% of the target area in the center is a valid screen having substantially displayed content.

Then, after the terminal transmits the target display screen to the external display device, as shown in FIG. 13, the external display device overscans the received target display screen, that is, intercepts 95% of the screen of the target display screen center. In this way, the screen intercepted by the external display device is just the effective screen in the target display screen. At this time, the full large screen interface 802 can be displayed in the external display device to overcome the problem that the display screen is incomplete due to overscan. Therefore, as shown in FIG. 11, the moderate screen size 1002 can be presented to the user as the recommended size.

For another example, the small screen size 1103 in which the display screen occupies 85% of the screen is taken as an example. When the terminal transmits the initial display screen to be displayed to the external display device (still taking the large screen interface 802 shown in FIG. 9 as an example), for example, As shown in FIG. 14, the image in the large screen interface 802 can be reduced by 85% from the original full screen screen size, and the image reduced by 85% can be adjusted to the center of the large screen interface to obtain a target display screen having the same size as the initial display screen. At this time, in the target display screen, 85% of the target area in the center is a valid screen having substantial display content.

Then, after the terminal transmits the target display screen to the external display device, as shown in FIG. 14, the external display device overscans the received target display screen, that is, intercepts 95% of the screen of the target display screen center for display. Since the screen captured during overscan is larger than the above-mentioned effective screen, the external display device can still display the full large screen interface 802 when displayed.

In other embodiments of the present application, as shown in FIG. 15, the external display device may also display each candidate screen size in the form of the progress bar 1401 in the setting interface 1001, and the user drags the slider 1402 of the progress bar 1401. The progress of the progress bar can be changed to select the corresponding candidate picture size as the target picture size when the subsequent external display device is displayed.

As shown in FIG. 15, when the user drags the slider 1402, the external display device can display the screen preview effect 1403 of the candidate screen size at the slider position in the setting interface 1001, so that the user selects the screen preview effect according to the usage habit. Picture size.

S704. The terminal obtains a target screen size selected by the user in response to an input operation of the user on the setting interface.

The target screen size described above may be used to indicate the size of the target area having the substantially displayed content in the target display screen generated by the terminal. For example, the target screen size may be a target ratio between the target area and the target display screen, for example, 95%, that is, 95% of the target display screens sent by the terminal to the external display device are substantially displayed. For example, the target screen size may directly be the size of the target area in the target display screen, for example, a target area of 1900×1000 resolution.

After the user selects a certain candidate screen size among the plurality of candidate screen sizes provided by the setting interface 1001, the external display device may send the candidate screen size selected by the user as the target screen size to the terminal, and the target drawing The face size may include a target ratio of a display screen on a subsequent external display device to an external display device screen. Of course, the target screen size may also include the ratio of the length of the subsequent display to the height, such as 16:9. Therefore, when the terminal subsequently transmits the real-time display screen to the external display device, the display screen may be scaled according to the target screen size, thereby providing the external display device with a signal source of the complete display screen.

Specifically, the method for the terminal to display the signal source of the complete display screen for the external display device can be referred to the following steps S705-S707, wherein the step S705 and the step S705' are two alternative implementation manners.

S705. The terminal converts an initial display screen to be displayed by the external display device into a target display screen that is adapted to the size of the target screen. The initial display screen and the target display screen each have a display screen size determined in step 702.

After the terminal acquires the target screen size set by the user to the external display device, it can store it in the memory of the terminal. Subsequently, when the user triggers the external display device to display, for example, when the user opens an application displayed on the external display device, the external display device may send the user-triggered input event to the terminal, and the terminal generates a size for the external display device. The screen to be displayed of the above display screen size, for example, an initial display screen.

In this case, taking the target screen size as an example of 80% of the screen, as shown in FIG. 16A, the initial display screen 1501 generated by the terminal for the external display device is a size of 10*10 matched with the external display device, according to 80. For the target screen size of %, the terminal may first reduce the generated initial display screen 1501 by 80% to obtain an 8*8 zoom screen 1502. Further, the 8*8 zoom screen 1502 is adjusted to the center of the target position based on the target position where the initial display screen 1501 is located. As shown in FIG. 16, the terminal can move the 8*8 zoom picture 1502 in the positive direction of the X-axis by 10*10%=1, and move in the positive direction of the Y-axis movement by 10*10%=1, so that the zoom screen 1502 moves. To the center of the target position where the original initial display screen is located. At this time, the terminal can fill black or other colors around the zoom screen 1502 to obtain a target display screen 1503 having the same size as the initial display screen 1501. It can be seen that the target display screen 1503 is the same size as the initial display screen 1501, but the area of the effective screen in the target display screen 1503 occupies 80% of the entire target display screen 1503, that is, the target display screen 1503 is provided with 80% of the target area. Used to layout display content.

As shown in FIG. 17 , the initial display screen 1501 may be the entire display interface to be displayed on the external display device, or may be one or more windows in the entire display interface, or may be some in the window. The specific embodiment of the present application does not impose any limitation on this.

Exemplarily, taking the Android operating system as an example, the Android operating system can be divided into four layers, from the upper layer to the lower layer respectively, the application layer (ie, the APP layer), the application framework layer (ie, the Framework layer), and the system runtime layer ( That is, the Libraries layer) and the Linux kernel layer.

Among them, the Linux kernel layer can be used as an abstraction layer between hardware (for example, CPU, network card, memory, etc.) and software stack, which can hide specific hardware details for the upper layer (system runtime layer, application framework layer and application layer) ) Provide a unified service. The system runtime layer contains some C/C++ libraries, such as media library, system C library, and display management library (Surface Manager). These libraries can be used by different components in the Android system. The system runtime layer can pass the Framework layer. Serve developers. The Framework layer provides developers with an API framework for full access to applications. Specifically, the Framework layer provides a lot of APIs for developing applications. By calling the corresponding APIs, you can construct an APP that meets the relevant business needs. The application layer mainly includes the APP written in java language, and the user operates on the APP. When the interface is used, it interacts with the system runtime layer or the Linux kernel layer by calling related APIs in the Framework layer to implement functions corresponding to the operation interface.

Then, in the embodiment of the present application, as shown in FIG. 18, the system service maintained by the Framework layer includes a window manager service, and a PC manager dedicated to maintaining and implementing the terminal PC function. Service (PC management service), which maintains the target screen size sent by the external display device. The window manager service is provided with a window state animator. Generally, each application's Activity corresponds to a window, and the window state animator can be used to draw and manage the window surface and window animation of the window.

In this way, when the window state animator draws each window for the external display device (for example, the initial display screen A), the target screen size set by the user can be obtained from the PC manager service, and then the target display screen corresponding to the target screen size is drawn. A.

It should be noted that, in the embodiment of the present application, when the initial display screen is a complete display interface to be displayed on the external display device, usually the display interface includes one or more windows (or icons), then the terminal may When each window (or icon) is drawn, each window (or icon) is converted according to the method described in step S704, and finally the converted target display screen is obtained; after the entire display interface is completed, the The display interface is converted according to the method described in step S704, and the converted target display screen is also obtained. This embodiment of the present application does not impose any limitation.

In addition, the terminal may also pre-store one or more target type windows, such windows do not need to adjust the size of the display screen, such as a wallpaper type window. The edges of such preset windows usually do not contain important information that the user needs. Therefore, the images in such windows are scanned without causing the loss of information required by the user. Then, when the terminal determines that the currently drawn window is the window of the target type, the terminal may perform the above-mentioned step S704, and the terminal may draw the window according to the existing window drawing method, and send the drawn window to the external display device for display. When the terminal determines that the currently drawn window is not the preset window, the window may be converted according to the method described in the above step S704, and finally the converted target display screen is obtained.

S705', the terminal draws a target display screen to be displayed for the external display device according to the target screen size.

In another implementation manner of the present application, when the external display device needs to display a display screen of a certain display screen size, for example, a desktop image of 10*10, the terminal may draw the display according to the target screen size set by the user. When the screen is used, the initial canvas used by the system is modified to the target canvas, and the target canvas can only draw the display in the same target area as the above target image size. Then, the subsequent terminal can draw the display screen in the target area in the target canvas. At this time, the obtained target display screen is the same as the target display screen formed after the conversion in step S704.

For example, as shown in FIG. 16B, the terminal can first reduce the initial canvas 1601 of 10*10 to 8* according to the target screen size. 8. Further, a bottom color is formed around the reduced initial canvas 1601 to form a target canvas 1602 of 10*10. It can be seen that the size of the target canvas 1602 is the same as the initial canvas 1601, but only the 8*8 target area located in the center of the target canvas 1602 can be used to draw the display. Therefore, as shown in FIG. 16B, the terminal can arrange the display contents in the display screen, such as text, images, icons, and the like, within the target area of the target canvas 1602, and finally obtain the same target display screen as in FIG. 16A.

Wherein, when the terminal draws the display content in the target area of the target canvas 1602, the terminal may still draw according to the above target The surface size is reduced by 80% of the preset size of the element to be displayed, and then the layout is in the target area. Of course, the terminal can also directly arrange the preset size of the to-be-displayed element in the target area. limit.

S706. The terminal sends the target display screen to the external display device.

S707. After the external display device scans the target display screen, the scanned target display screen is outputted on the display.

In steps S705-S706, the terminal transmits the zoomed target display screen to the external display device. At this time, as shown in FIG. 13 or FIG. 14, the external display device may overscan the received target display screen, for example, , 95% of the display data in the center of the extraction target display screen is displayed. Then, since the area of the screen extracted by the external display device during the overscan is greater than or equal to the area of the effective screen in the target display screen generated by the terminal, the information of the display screen received by the external display device in the terminal PCized scene is complete. It can avoid the phenomenon that the display is incomplete due to overscan.

It should be noted that, in the above embodiment, the external display device uses an extraction ratio of 95% for the display screen when the overscan is used. It can be understood that the specific extraction ratio of the overscan can be performed by a person skilled in the art according to the actual application scenario. It is set that when the zoom ratio of the initial display screen (ie, the target screen size set by the user) is less than or equal to the extraction ratio of the display screen when the external display device overscan, the external display device can obtain a complete display screen after overscan.

In addition, in the image processing method of the terminal provided by the present application, after the terminal establishes a connection with the external display device, if the external display device can detect the display screen extraction rate set by the current system in the overscan option, the external display device may The display screen extraction rate is sent to the terminal. Further, the terminal can automatically set the target screen size to a value corresponding to the display screen extraction rate. Then, when the subsequent terminal sends the initial display screen to be displayed to the external display device, the initial display screen may be scaled by using the target screen size according to the method shown in steps S704-S706 above, and the target display screen obtained by the scaling is sent. Displayed after overscan of the external display device. Since the target screen size corresponds to the display screen extraction rate, the display screen obtained by the external display device after overscan is just the effective screen in the target display screen, and the target display can be maximized and displayed in the external display device. The screen overcomes the problem of incomplete display due to overscan.

It can be understood that, in order to implement the above functions, the above terminal and the like include hardware structures and/or software modules corresponding to each function. Those skilled in the art will readily appreciate that the embodiments of the present application can be implemented in a combination of hardware or hardware and computer software in combination with the elements and algorithm steps of the various examples described in the embodiments disclosed herein. Whether a function is implemented in hardware or computer software to drive hardware depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods to implement the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the embodiments of the present application.

The embodiment of the present application may perform the division of the function modules on the terminal or the like according to the foregoing method example. For example, each function module may be divided according to each function, or two or more functions may be integrated into one processing module. The above integrated modules can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of the module in the embodiment of the present application is schematic, and is only a logical function division, and the actual implementation may have another division manner.

In the case where the respective functional modules are divided by corresponding functions, FIG. 18 shows the above embodiment. A possible schematic diagram of a terminal involved, the terminal includes: a transceiver unit 1901, a determining unit 1902, and a generating unit 1903.

The transceiver unit 1901 is configured to support the terminal to perform the processes S701, S704, and S706 in FIG. 7; the determining unit 1902 is configured to support the terminal to perform the process S702 in FIG. 7; the generating unit 1903 is configured to support the terminal to execute the processes S705 and S705 in FIG. 7. '. All the related content of the steps involved in the foregoing method embodiments may be referred to the functional descriptions of the corresponding functional modules, and details are not described herein again.

In the case of employing an integrated unit, the above determining unit 1902 and generating unit 1903 may be integrated into a processing module, the transceiver unit 1901 is used as a communication module, and the terminal may further include a storage module, a display module, and the like.

At this time, as shown in FIG. 20, a possible structural diagram of the terminal involved in the above embodiment is shown. The processing module 2002 is configured to control and manage the actions of the terminal. The communication module 2003 is used to support communication between the terminal and other network entities. The storage module 2001 is used to save program codes and data of the terminal. The display module 2004 is for displaying information input by the user or information provided to the user and various menus of the terminal.

In the embodiment of the present application, when the terminal is connected to the external display device through the communication module 2003, the processing module 2002 of the terminal may generate a target display screen to be displayed for the external display device, where the target displays the target in the screen The area is used for arranging display content in the target display screen, and the target area is a part of the target display screen; further, the communication module 2003 may send the target display screen to the external display device for display. In this way, the image information lost when the external display device overscans is reduced, thereby improving the phenomenon that the display screen is incomplete due to overscan.

The related descriptions of the steps in the above-mentioned embodiments may be referred to the related descriptions in the steps S701-S704 of the foregoing embodiment, and are not described herein again.

Exemplarily, the processing module 2002 may be a processor or a controller, for example, may be a central processing unit (CPU), a GPU, a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit. (Application-Specific Integrated Circuit, ASIC), Field Programmable Gate Array (FPGA) or other programmable logic device, transistor logic device, hardware component, or any combination thereof. It is possible to implement or carry out the various illustrative logical blocks, modules and circuits described in connection with the present disclosure. The processor may also be a combination of computing functions, for example, including one or more microprocessor combinations, a combination of a DSP and a microprocessor, and the like.

The communication module 2003 can be a transceiver, a transceiver circuit, an input/output device, a communication interface, or the like. For example, the communication module 2003 may specifically be a Bluetooth device, a Wi-Fi device, a peripheral interface, or the like.

The memory module 2001 may be a memory, which may include a high speed random access memory (RAM), and may also include a nonvolatile memory such as a magnetic disk storage device, a flash memory device, or other volatile solid state storage device.

The display module 2004 can be a display, and specifically can be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. In addition, a touch panel can be integrated on the display for collecting touch events on or near the display, and transmitting the collected touch information to other devices (such as a processor, etc.).

When the processing module 2002 is a processor, the communication module 2003 is a radio frequency circuit, and the storage module 2001 is a memory. The terminal provided by the embodiment of the present application may be the mobile phone 110 shown in FIG. 5 when the display module 2004 is a display.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using a software program, it may occur in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions described in accordance with embodiments of the present application are generated in whole or in part. The computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data center Transfer to another website site, computer, server, or data center by wire (eg, coaxial cable, fiber optic, digital subscriber line (DSL), or wireless (eg, infrared, wireless, microwave, etc.). The computer readable storage medium can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes one or more available media. The usable medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (such as a solid state disk (SSD)).

The foregoing is only a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present application should be covered by the scope of the present application. . Therefore, the scope of protection of the present application should be determined by the scope of the claims.

Claims

An image processing method of a terminal, wherein the terminal is connected to an external display device, and the method includes:

The terminal generates a target display screen to be displayed for the external display device, and the target area in the target display screen is used for layout display content in the target display screen, where the target area is in the target display screen a part of;

The terminal sends the target display screen to the external display device for display.
The method according to claim 1, wherein before the terminal generates the target display screen to be displayed for the external display device, the method further includes:

The terminal determines a display screen size, the display screen size being a size of a screen transmitted to the external display device; and the target display screen having the display screen size.
The method according to claim 2, wherein the generating, by the terminal, the target display screen to be displayed for the external display device comprises:

The terminal generates an initial display screen for content to be displayed by the external display device, where the initial display screen has the display screen size;

The terminal converts the initial display screen into the target display screen, and the display content of the target area in the target display screen is obtained by being reduced by the initial display screen.
The method according to claim 2, wherein the generating, by the terminal, the target display screen to be displayed for the external display device comprises:

The terminal fills the content to be displayed by the external display device in the target area to obtain the target display screen.
The method according to claim 3, further comprising: before the terminal converting the initial display image to the target display screen, further comprising:

The terminal generates, for the external display device, a setting interface for adjusting a display screen size of the external display device, where the setting interface includes at least one candidate screen size;

Sending, by the terminal, the setting interface to the external display device for display;

The terminal determines a scaling ratio between the initial display screen and the target area in the target display screen according to an input operation of the user on the setting interface.
The method according to claim 4, further comprising: before the terminal filling the content to be displayed by the external display device in the target area, further comprising:

The terminal generates, for the external display device, a setting interface for adjusting a display screen size of the external display device, where the setting interface includes at least one candidate screen size;

Sending, by the terminal, the setting interface to the external display device for display;

The terminal determines a size of the target area in the target display screen according to an input operation of the user at the setting interface.
The method according to claim 5 or 6, wherein the setting interface further comprises a screen preview effect of the external display device under the candidate screen size.
The method according to any one of claims 5-7, wherein the terminal generates a setting interface for adjusting the size of the display screen for the external display device, including:

And in response to a setting operation of the external display device by the user, the terminal generates a setting interface for adjusting the size of the display screen for the external display device; or

When the terminal successfully connects to the external display device, the terminal generates a setting interface for adjusting the size of the display screen for the external display device.
The method according to any one of claims 1 to 8, wherein the target area is located at a center of the target display screen, and other areas of the target display screen other than the target area are provided with a background color .
The method according to any one of claims 1 to 9, wherein a target ratio of the target area to the target display screen is less than or equal to an extraction ratio of the display screen when the external display device overscans .
The method according to any one of claims 2 to 10, wherein the terminal determines a display screen size, including:

The terminal acquires a resolution supported by the external display device;

The terminal determines the display screen size according to a resolution supported by the external display device.
An image processing method of a terminal, wherein the terminal is connected to an external display device, and the method includes:

Sending, by the terminal, the generated initial display screen to the external display device for display;

Sending, by the terminal, a setting interface for adjusting a display screen size of the external display device to the external display device for display, where the setting interface includes at least one candidate screen size;

And responding to the target screen size selected by the user in the candidate screen size, the terminal transmitting the generated target display screen to the external display device for display, where the target display screen and the initial display screen have the same size, And the display content of the target area in the target display screen is obtained by being reduced by the initial display screen, and the size of the target area is the target screen size.
A terminal, the terminal being connected to an external display device, wherein the terminal comprises a processor, a memory and a transceiver connected by a bus, wherein

The processor is configured to generate, for the external display device, a target display screen to be displayed, where a target area in the target display screen is used to lay out display content in the target display screen, where the target area is The target displays a portion of the screen;

The transceiver is configured to send the target display screen to the external display device for display.
The terminal according to claim 13, wherein before the target display screen to be displayed is generated for the external display device,

The processor is further configured to determine a display screen size, where the display screen size is a size of a screen sent to the external display device; and the target display screen has the display screen size.
The terminal of claim 13 wherein:

The processor is specifically configured to generate an initial display screen for content to be displayed by the external display device, where the initial display screen has the display screen size; and the terminal converts the initial display screen into the target display a screen, wherein the display content of the target area in the target display screen is obtained by being reduced by the initial display screen.
The terminal of claim 13 wherein:

The processor is specifically configured to fill the content to be displayed by the external display device in the target area to obtain the target display screen.
The terminal of claim 15 wherein:

The processor is further configured to generate, for the external display device, an adjustment for the external display device a setting interface for displaying a screen size, wherein the setting interface includes at least one candidate screen size;

The transceiver is further configured to send the setting interface to the external display device for display; and receive an input operation of the user at the setting interface;

The processor is further configured to determine a scaling ratio between the initial display screen and the target area in the target display screen.
The terminal of claim 16 wherein:

The processor is further configured to generate, by the external display device, a setting interface for adjusting a display screen size of the external display device, where the setting interface includes at least one candidate screen size;

The transceiver is further configured to send the setting interface to the external display device for display; and receive an input operation of the user at the setting interface;

The processor is further configured to determine a size of the target area in the target display screen according to an input operation of a user at the setting interface.
The terminal according to claim 17 or 18, wherein the setting interface further comprises a screen preview effect of the external display device under the candidate screen size.
A terminal according to any one of claims 17 to 19, characterized in that

The processor is specifically configured to: generate a setting interface for adjusting the size of the display screen for the external display device in response to a setting operation of the external display device by the user; or, when the terminal and the external display When the device is successfully connected, a setting interface for adjusting the size of the display screen is generated for the external display device.
The terminal according to any one of claims 13 to 20, wherein the target area is located at a center of the target display screen, and other areas of the target display screen other than the target area are provided with a background color .
The terminal according to any one of claims 13 to 21, wherein a target ratio of the target area to the target display screen is less than or equal to an extraction ratio of the display screen when the external display device overscans .
A terminal according to any one of claims 14 to 22, characterized in that

The transceiver is further configured to obtain a resolution supported by the external display device;

The processor is specifically configured to determine the display screen size according to a resolution supported by the external display device.
A terminal, the terminal being connected to an external display device, wherein the terminal comprises a processor, a memory and a transceiver connected by a bus, wherein

The processor is configured to generate an initial display screen for the external display device, generate a setting interface for adjusting a display screen size of the external display device, generate a target display screen for the external display device, and display the target display The screen and the initial display screen have the same size, and the display content of the target area in the target display screen is obtained by being reduced by the initial display screen, and the size of the target area is the target screen size;

The transceiver is configured to send the initial display screen to the external display device for display; send the setting interface to the external display device for display; and send the target display screen to the external display The device is displayed.
A computer readable storage medium having stored therein instructions, wherein when the instructions are run on a terminal, causing the terminal to perform any of claims 1-11 or 12 The image processing method described in the item.
A computer program product comprising instructions, wherein when the computer program product is run on a terminal, the terminal is caused to perform the image processing method according to any one of claims 1-11 or 12.