CN113965642A

CN113965642A - Display method and electronic equipment

Info

Publication number: CN113965642A
Application number: CN202010625214.3A
Authority: CN
Inventors: 徐顺海; 李俊; 周涌; 段晓冬
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2020-07-01
Filing date: 2020-07-01
Publication date: 2022-01-21
Also published as: WO2022002205A1

Abstract

The application discloses a display method and electronic equipment, relates to the technical field of terminals, and can improve the ghost phenomenon of a display screen, prolong the service life of the display screen and improve the display effect of the electronic equipment. The method comprises the following steps: the electronic equipment displays a first interface of a first application; the electronic equipment detects that a first application applies for a first authority, wherein the first authority is used for forbidding an operating system of the electronic equipment to enter a dormant state; if the first application acquires the first permission, the electronic equipment can start to detect whether the display content of the currently displayed first interface changes; if the display content of the first interface is not changed, the electronic device can automatically display a second interface, wherein the second interface is the interface of the first interface after the first interface shifts by at least one pixel unit along the first direction.

Description

Display method and electronic equipment

Technical Field

The embodiment of the application relates to the technical field of terminals, in particular to a display method and electronic equipment.

Background

The sticking image (also referred to as an afterimage) phenomenon is a phenomenon in which, when a display of an electronic device is switched, a previous screen does not disappear immediately and appears simultaneously with a second screen in terms of visual effect. This phenomenon is mostly present in a Cathode Ray Tube (CRT), Plasma Display Panel (PDP), or organic light-emitting diode (OLED) display.

Taking the OLED display screen as an example, when the OLED display screen is frozen on the same picture for a long time, the brightness attenuation of the normally bright position is usually larger than that of other positions, so that after a new picture is switched at the position, a ghost phenomenon can be generated in the new picture; if the display time of the static picture is too long, the aging of the pixel points is serious, even the screen burning phenomenon of the OLED display screen can occur, and the OLED display screen is permanently damaged. Therefore, how to improve the afterimage phenomenon of the display screen and prolong the service life of the display screen is a technical problem to be solved urgently at present.

Disclosure of Invention

The embodiment of the application provides a display method and an electronic device, which can improve the afterimage phenomenon of a display screen, prolong the service life of the display screen and improve the display effect of the electronic device.

In a first aspect, the present application provides a display method, including: the electronic equipment displays a first interface of a first application; furthermore, the electronic device can detect that the first application applies for a first right, wherein the first right is used for forbidding an operating system of the electronic device to enter a dormant state; if the first application acquires the first permission, the display screen of the electronic equipment is easy to display the same content for a long time, and at the moment, the risk of the display screen having the phenomena of image sticking and screen burning is higher, so that the electronic equipment can start to detect whether the display content of the currently displayed first interface changes; if the display content of the first interface is not changed, which indicates that the display screen displays the same content for a long time, the electronic device may automatically display a second interface, where the second interface is an interface of the first interface shifted by at least one pixel unit along the first direction.

That is to say, the electronic device may start to monitor whether the display content in the display screen changes after the first application acquires the first permission, that is, trigger the screen protection mechanism to start to monitor whether the display content in the display screen changes in a scene with a high screen burning risk, so as to reduce the screen burning and the occurrence of the afterimage phenomenon in time by offsetting the display content. Therefore, the phenomena of screen burning and image sticking can be effectively reduced, and the power consumption expense caused by monitoring the display content in the display screen in real time can be reduced.

In addition, in a second interface displayed after the electronic device deviates from the first interface, although part of the image at the edge of the first interface is lost, because the resolution of the current display screen exceeds the refinement range recognized by human eyes, a user can hardly perceive the change of the first interface after deviating from a plurality of pixel units, and therefore the second interface seen by the user can be considered to be the same as the first interface in the visual effect, and thus, the electronic device can effectively avoid screen burn and image sticking phenomena of the display screen by deviating from the pixel units in the state that the user does not perceive.

In one possible implementation manner, the electronic device detects whether display content of the first interface changes, including: the electronic equipment calls a preset pixel detection algorithm to detect whether each pixel unit in the first interface changes within a first preset time.

Illustratively, the step of calling a preset pixel detection algorithm by the electronic device to detect whether each pixel unit in the first interface changes within a first preset time includes: the electronic equipment calls a preset pixel detection algorithm to periodically acquire a pixel value of each pixel unit in the first interface; if the pixel value of each pixel unit in the first interface is not changed within the first preset time, the electronic device can determine that the display content of the first interface is not changed within the first preset time, and the display screen has a higher screen burning risk; otherwise, the electronic device may determine that the display content of the first interface changes within a first preset time.

Or, the electronic device invokes a preset pixel detection algorithm to detect whether each pixel unit in the first interface changes within a first preset time, including: the electronic device calls a preset pixel detection algorithm to periodically obtain a checksum (checksum) of the display content from the display screen, for example, a value obtained by adding pixel values of each pixel unit in the display screen may be used as the checksum; if the checksums obtained by the electronic equipment each time are the same within the first preset time, the electronic equipment can determine that the display content of the first interface is not changed within the first preset time, and the display screen has a higher screen burning risk; otherwise, the electronic device may determine that the display content of the first interface changes within a first preset time.

In one possible implementation manner, before the electronic device displays the second interface, the method includes: the electronic equipment modifies a pixel matrix corresponding to the first interface in the display register, so that pixel units in the pixel matrix are shifted by at least one pixel unit along a first direction; then, the electronic device displays the second interface, specifically including: and the display screen of the electronic equipment displays the second interface according to the modified pixel matrix.

In one possible implementation manner, after the electronic device displays the second interface, the method further includes: the electronic equipment detects whether the display content of the second interface changes; if the display content of the second interface is not changed within the second preset time (the second preset time is less than or equal to the first preset time), which indicates that the display content of the electronic device is still not changed after the electronic device deviates from the first interface, the electronic device may display a third interface, where the third interface is an interface after the first interface or the second interface deviates from at least one pixel unit along the second direction (the second direction is the same as or different from the first direction), so as to avoid screen burn and image sticking on the display screen.

Similarly, a user hardly senses the change of the first interface or the second interface after the first interface or the second interface deviates from a plurality of pixel units, so that the third interface seen by the user can be considered to be the same as the first interface in visual effect, and the electronic equipment can effectively avoid screen burning and image sticking phenomena of the display screen by deviating the pixel units in a state that the user does not sense.

In a possible implementation manner, after the electronic device detects whether the display content of the second interface changes, the method further includes: if the electronic device updates the second interface to a fourth interface (the fourth interface is different from the second interface) within a second preset time, which indicates that the user performs some operation on the electronic device to change the second interface displayed in the display screen, the electronic device may restart to detect whether the display content of the fourth interface changes, and if the display content of the fourth interface does not change, the electronic device may continue to update the display interface in a pixel unit shifting manner, so as to reduce the risk of image sticking and screen burn on the display screen.

In a possible implementation manner, in an android operating system, the first permission may be a permission to acquire a WakeLock (wake lock). In the IOS operating system, the first right may be obtained by setting idletimerdiand or setidletimerdiand.

In a possible implementation manner, after the electronic device detects whether the display content of the first interface changes, the method further includes: if the first application is detected to release the WakeLock, the electronic device automatically enters a dormant state if no user input is detected within a period of time, and the risk that the display screen has image sticking and screen burning is low at the moment, so that the electronic device can stop detecting whether the display content of the first interface changes.

In a possible implementation manner, the second interface includes a blank area, where the blank area is a vacant portion of the edge of the display screen after the first interface is shifted by at least one pixel unit along the first direction; wherein the electronic device displays a second interface comprising: and the electronic equipment displays the shifted first interface in the second interface and fills the blank area.

For example, the electronic device may fill the whiteout region with the color of the image adjacent to the whiteout region, such that the color and style of the whiteout region is similar to the first interface, leaving the user unaware of the shift in the displayed content.

In one possible implementation manner, before the electronic device displays the second interface, the method further includes: the electronic device prompts the user that the display screen has a burn-in risk. In addition to prompting the display screen for a burn-in risk, the electronic device may also provide a dialog box for the user to select whether to offset the interface in the display screen. If the fact that the user selects to allow the interface in the display screen to be shifted is detected, the electronic equipment shifts the pixel unit in the first interface and then displays the second interface.

In a second aspect, the present application provides a display method, including: the electronic equipment displays a first interface of a first application; the electronic equipment detects that a first application applies for a first authority, wherein the first authority is used for forbidding an operating system of the electronic equipment to enter a dormant state; if the first application acquires the first permission, the electronic equipment can detect whether the display content in a preset area in the first interface changes; if the display content in the preset area is not changed, screen burn and image sticking phenomena are easy to occur at the boundary position between the periphery of the preset area and other areas, so that the size of the preset area can be adjusted by the electronic equipment. That is, if it is detected that the display content in a certain area of the display screen has not changed for a long time, the electronic device may also modify the corresponding pixel unit to avoid the screen burn and the image sticking phenomenon on the display screen.

In one possible implementation manner, the electronic device adjusts the size of the preset area, including: the electronic equipment can adjust the size of the preset area by adjusting the position of the boundary line of the preset area, so that the probability of screen burning and image sticking at the junction position of the preset area and other areas is reduced.

For example, the preset area may be an area where the status bar is located, or the preset area may be an area other than a video screen during video playing, or the preset area may be an area other than a view finder during shooting or previewing.

In a third aspect, the present application provides an electronic device, comprising: a memory, a display screen, and one or more processors; the memory and the display screen are coupled with the processor. Wherein the memory is to store computer program code, the computer program code comprising computer instructions; the processor is configured to execute one or more computer instructions stored by the memory when the electronic device is running, so as to cause the electronic device to perform the display method according to any one of the first aspect or the second aspect.

In a fourth aspect, the present application provides a computer-readable storage medium comprising computer instructions. The computer instructions, when executed on an electronic device, cause the electronic device to perform the display method of any of the first or second aspects described above.

In a fifth aspect, the present application provides a computer program product, which, when run on an electronic device, causes the electronic device to perform the display method according to any of the first or second aspects.

It is understood that the electronic device, the computer-readable storage medium and the computer program product provided in the foregoing aspects are all applied to the corresponding method provided above, and therefore, the beneficial effects achieved by the electronic device, the computer-readable storage medium and the computer program product provided in the foregoing aspects can refer to the beneficial effects in the corresponding method provided above, and are not described herein again.

Drawings

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

fig. 2 is a schematic structural diagram of an OLED pixel unit according to an embodiment of the present disclosure;

fig. 3 is a first schematic diagram illustrating an architecture of an operating system in an electronic device according to an embodiment of the present disclosure;

fig. 4 is a first schematic application scenario diagram of a display method according to an embodiment of the present application;

fig. 5 is a schematic flowchart of a display method according to an embodiment of the present application;

fig. 6 is a schematic diagram illustrating an architecture of an operating system in an electronic device according to an embodiment of the present application;

fig. 7 is a schematic view of an application scenario of a display method according to an embodiment of the present application;

fig. 8 is a schematic view of an application scenario of a display method according to an embodiment of the present application;

fig. 9 is a schematic view of an application scenario of a display method according to an embodiment of the present application;

fig. 10 is a schematic view of an application scenario of a display method according to an embodiment of the present application;

fig. 11 is a schematic view six of an application scenario of a display method according to an embodiment of the present application;

fig. 12 is a schematic view seventh of an application scenario of a display method according to an embodiment of the present application;

fig. 13 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

Detailed Description

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

At present, more and more electronic devices such as mobile phones and the like start to use OLED screens as display screens. Compared with the traditional display screen, the OLED screen has the advantages of being light, thin, high in luminous efficiency and the like. However, when the OLED screen displays the same still picture for a long time, the luminance attenuation at the place where the OLED screen is normally bright is larger than that at other places, that is, the organic compound thin film in the pixel unit at the place where the contrast is higher ages faster than that at other places, and the light emitting efficiency is attenuated more quickly. Furthermore, when the OLED screen displays a next frame, a user can see a residual image of the previous frame in the next frame, i.e., a residual image phenomenon occurs.

In this regard, some electronic devices may monitor in real time whether the current display screen is in a still state when displaying. When the display screen is detected to be still displaying a certain picture for the preset time, the electronic equipment can modify the display content in the current display screen, so that the phenomenon of ghost shadow is avoided.

However, the electronic device may not meet the user's expectations after automatically modifying the display content, resulting in a poor user experience. In addition, the electronic device monitors the display screen in real time, which causes large power consumption overhead, and the power consumption of the electronic device is high.

In view of the above, embodiments of the present application provide a display method, by which a display screen can be prevented from displaying the same and static picture for a long time in a state where a user does not perceive the picture, so as to reduce the probability of the display screen being subjected to image sticking and screen burning, and reduce power consumption required by an electronic device to improve the image sticking phenomenon.

Taking a mobile phone as an example of the above electronic device, fig. 1 shows a schematic structural diagram of the mobile phone.

As shown in fig. 1, the mobile phone may include a processor 110, an external memory interface 120, an internal memory 121, a Universal Serial Bus (USB) interface 130, 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, and the like.

It is to be understood that the illustrated structure of the embodiment of the present invention is not to be specifically limited to a mobile phone. In other embodiments of the present application, the handset may include more or fewer components than shown, or combine certain components, or split certain components, or a different arrangement of components. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

Processor 110 may include one or more processing units, such as: the processor 110 may include an Application Processor (AP), a modem processor, a Graphics Processing Unit (GPU), an Image Signal Processor (ISP), a controller, a memory, a video codec, a Digital Signal Processor (DSP), a baseband processor, and/or a neural-Network Processing Unit (NPU), etc. The different processing units may be separate devices or may be integrated into one or more processors.

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

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

The wireless communication function of the mobile phone can be realized by the antenna 1, the antenna 2, the mobile communication module 150, the wireless communication module 160, the modem processor, the baseband processor, and the like.

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

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

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

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

The mobile phone realizes the display function through the GPU, the display screen 194, the application processor and the like. The GPU is a microprocessor for image processing, and is connected to the display screen 194 and an application processor. The GPU is used to perform mathematical and geometric calculations for graphics rendering. The processor 110 may include one or more GPUs that execute program instructions to generate or alter display information.

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

Taking an OLED display panel as an example, one OLED display panel may include a plurality of OLED pixel units arranged in an array. As shown in fig. 2, each OLED pixel unit includes a cathode 201, an anode 202, and an electron transport layer 203, a hole transport layer 204, and an emission layer 205 located between the cathode 201 and the anode 202. The cathode 201 may be a metal electrode, and the anode 202 may be an ITO (indium tin oxide) transparent electrode.

When a driving voltage V is input to the cathode 201 and the anode 202, electrons are transported from the cathode 201 to the electron transport layer 203 and holes are injected from the anode 202 to the hole transport layer 204 under the action of the driving voltage V, and the holes and the hole transport layer 204 meet each other to generate excitons, so that light-emitting molecules in the light-emitting layer 205 are excited and a light source is generated after radiation. When the driving voltage V is different, the corresponding OLED pixel units can be excited to present different colors and brightness. In this way, each OLED pixel unit in the OLED display screen can display a corresponding picture under different driving voltages.

Among them, the organic materials in the electron transport layer 203, the hole transport layer 204, and the light emitting layer 205 are gradually aged during use. The phenomenon of image sticking occurring in the OLED display screen is that the OLED pixel unit at a certain fixed position always displays the same and static image for a long time, so that the organic material in the pixel unit is more worn out than other positions, and the luminous efficiency is more quickly attenuated, thereby leaving the image sticking on the OLED display screen.

The mobile phone can realize shooting function through the ISP, the camera 193, the video codec, the GPU, the display screen 194, the application processor and the like.

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

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

The digital signal processor is used for processing digital signals, and can process digital image signals and other digital signals. For example, when the mobile phone selects the frequency point, the digital signal processor is used for performing fourier transform and the like on the frequency point energy.

Video codecs are used to compress or decompress digital video. The handset may support one or more video codecs. Thus, the mobile phone can play or record videos in various encoding formats, such as: moving Picture Experts Group (MPEG) 1, MPEG2, MPEG3, MPEG4, and the like.

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

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

The mobile phone can implement audio functions through the audio module 170, the speaker 170A, the receiver 170B, the microphone 170C, the earphone interface 170D, and the application processor. Such as music playing, recording, etc.

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

The speaker 170A, also called a "horn", is used to convert the audio electrical signal into an acoustic signal. The handset can listen to music through the speaker 170A or listen to a hands-free conversation.

The receiver 170B, also called "earpiece", is used to convert the electrical audio signal into an acoustic signal. When the mobile phone receives a call or voice information, the receiver 170B can be close to the ear to receive voice.

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

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

The sensor module 180 may include a pressure sensor, a gyroscope sensor, an air pressure sensor, a magnetic sensor, an acceleration sensor, a distance sensor, a proximity light sensor, a fingerprint sensor, a temperature sensor, a touch sensor, an ambient light sensor, a bone conduction sensor, and the like.

Certainly, the mobile phone may further include a charging management module, a power management module, a battery, a key, an indicator, 1 or more SIM card interfaces, and the like, which is not limited in this embodiment of the present application.

The software system of the mobile phone can adopt a layered architecture, an event-driven architecture, a micro-core architecture, a micro-service architecture or a cloud architecture. The embodiment of the application adopts a layered architecture

The system is taken as an example to illustrate the softness of the mobile phoneAnd (5) a piece structure.

Fig. 3 is a block diagram of a software structure of a mobile phone according to an embodiment of the present application.

The layered architecture divides the software into several layers, each layer having a clear role and division of labor. The layers communicate with each other through a software interface. In some embodiments, the method will comprise

The system is divided into four layers, namely an application program layer, an application program framework layer, an Android runtime (Android runtime) and system library and a kernel layer from top to bottom.

1. Application layer

The application layer may include a series of application packages.

As shown in fig. 3, applications such as calls, memo, browser, contacts, camera, gallery, calendar, map, bluetooth, music, video, and short message may be installed in the application layer.

2. Application framework layer

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

In the embodiment of the present application, as shown in fig. 3, a power manager (PowerManager)301 may be included in the application framework layer. The power manager 301 may be used to manage the functions of the electronic device, such as bright screen, dark screen, system sleep, and wake-up.

Taking the system sleep function as an example, the application may apply to obtain the right (which may be referred to as a first right) for prohibiting the operating system from entering the sleep state at runtime. After the application acquires the first permission, the operating system cannot enter a sleep state, at this time, a processor (for example, a CPU) of the mobile phone does not stop working, and a display screen of the mobile phone remains in a normally-on state.

Illustratively, the first right may include a right to acquire WakeLock. The WakeLock is a lock mechanism in the Android system, and as long as an application process holds the lock, the system cannot enter a sleep state, and at the moment, the sleep function of the system fails. Before obtaining the WakeLock, the application needs to apply for the WakeLock right to a permission service (permission service) 302. For example, the application may configure an android.

Illustratively, in the running process of a video APP, if it is detected that a user starts playing a certain video, in order to ensure that the user does not automatically turn off the screen to enter a sleep state when watching the video, the video APP may call the PowerManager 301, and the PowerManager 301 applies the WakeLock right of this time to the right service 302 through PowerManager service. After applying for this WakeLock permission, the video APP can call the acquire () function to obtain the WakeLock, and the operating system can not enter the dormant state for standby when the video APP holds the WakeLock.

Because the operating system does not enter the dormant state after the application acquires the WakeLock, at the moment, if a user does not operate the mobile phone for a long time or the network is abnormal, the mobile phone can display the same still picture for a long time, and therefore the phenomena of image sticking and screen burning of a display screen of the mobile phone are caused. Then, in the present embodiment, as also shown in fig. 3, a screen saver module 303 may be provided in the application framework layer. Still taking the video APP as an example, after the video APP acquires the WakeLock through the PowerManager 301, the screen saver module 303 may be triggered to start monitoring whether the display content in the display screen changes. Once it is monitored that the display content in the display screen does not change within a preset time (e.g., 10 minutes, 20 minutes, or 30 minutes), the screen saver module 303 may modify or shift the pixel units in the display screen through the display driver, so as to avoid the image sticking and burn-in phenomena caused by displaying the same content for a long time on the display screen.

Besides the video APP, the applications such as the game APP, the reading APP, the news APP and the navigation APP can also prohibit the operating system from entering a dormant state by acquiring the WakeLock during running. After the application acquires the WakeLock, the operating system cannot enter the sleep state, so that the display screen is easy to display the same content for a long time. Therefore, in the embodiment of the present application, after the application acquires the WakeLock, the mobile phone may trigger the screen protection module 303 to monitor whether the display content in the display screen changes, that is, trigger the screen protection mechanism to start monitoring whether the display content in the display screen changes in a scene with a high screen burning risk, so as to reduce the occurrence of the screen burning and the image sticking phenomenon by modifying or shifting the pixel units in the display screen in time. Therefore, the phenomena of screen burning and image sticking can be effectively reduced, and the power consumption expense caused by monitoring the display content in the display screen in real time can be reduced.

It should be noted that the first right may include, in addition to WakeLock, DISABLE _ KEYGUARD right or DEVICE _ POWER right, etc. These permissions may all be used to prohibit the operating system from entering a sleep state. In addition, in addition to

In addition to the system, other operating systems are also generally provided with a first right for prohibiting the operating system from entering a sleep state. To be provided with

Examples of systems are described in

The first permission can be obtained by setting the parameter of the idletimediendable in the system, and when the value of the idletimedisable is set to YES by the mobile phone, the mobile phone can obtain the first permission. At this time, the display screen is kept in a normally-on state, and the operating system cannot enter a dormant state. For example, [ UIApplication shared application ] can be set]Idletidiscabled is YES. Or, the first right may be obtained by setting a parameter setldletimerisable, and when the mobile phone sets the value of setldletimerisable to YES, the mobile phone may obtain the first right. At this time, the display screen is kept in a normally-on state, and the operating system cannot enter a dormant state. For example, [ UIApplication shared application ] can be set]setIdleTimerDisabled:YES。

In addition, when the screen saver module 303 monitors that the display content in the display screen does not change within a preset time, that is, the risk of the current screen burn-in phenomenon is high, the screen saver module 303 may shift each pixel unit corresponding to the current display content to a certain direction as a whole on the premise that the whole display content is not changed.

For example, as shown in fig. 4 (a), the image 401 displayed on the display screen of the mobile phone includes 1080 × 800 pixel units. When the screen saver 303 monitors that each pixel unit in the image 401 does not change within a preset time, as shown in (b) of fig. 4, the screen saver 303 may control the 1080 × 800 pixel units to shift 4 units to the left in the whole by display driving. In the embodiment of the present application, the size of one unit is the same as the size of one pixel unit. At this time, 1080 × 796 pixel units on the right side of the image 401 are reserved, and a partial image on the left edge of the image 401 is lost, but the resolution of the current mobile phone display screen exceeds the refinement range recognized by human eyes, so that a user can hardly perceive the change of the image 401 after shifting 4 units to the left, and thus, the screen saver module 303 can effectively avoid screen burn and image retention of the display screen through shifting the pixel units in a state that the user does not perceive the change.

As shown in fig. 4 (b), the screen saver module 303 controls the display screen to shift the entire 1080 × 800 pixel units by 4 units to the left, and then a blank area 402 with a size of 1080 × 4 appears on the right side of the display screen. In this embodiment, the screen saver module 303 can control the display screen to fill the blank area 402. For example, the whiteout area 402 may be filled in black or white. Alternatively, the screen saver module 303 can select a color that is the same or similar to the color of the image 401 to fill the whiteout area 402, leaving the user unaware of the shift in the display content. Still alternatively, the screen saver module 303 may crop an image of size 1080 × 4 in the image 401 and fill the cropped image in the blank region 402. For example, an image with a size of 1080 × 4 at the right edge of image 401 may be cropped and filled in blank region 402, so that the color and style of the image filled in the blank region 402 on the right side are similar to the color and style of the image at the right edge of image 401, and the user does not perceive the shift of the display content.

Of course, in addition to shifting the pixel unit by 4 units to the left, the screen saver module 303 may also control the display screen to shift the pixel unit by several units to the right, upward, or downward, which is not limited in this embodiment of the present application. For example, the screen saver module 303 may set pixel elements in the display to be periodically shifted in order of first left, then right, then up, then down.

In addition, the application framework layer may also include a window manager, content provider, view system, resource manager, notification manager, and the like.

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

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

The view system described above can be used to build a display interface for an application. Each display interface may be comprised of one or more controls. Generally, a control may include an interface element such as an icon, button, menu, tab, text box, dialog box, status bar, navigation bar, Widget, and the like.

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

The notification manager enables the application program to display notification information in the status bar, can be used for conveying notification type messages, can automatically disappear after a short time of stay, and does not need user interaction. Such as a notification manager used to inform download completion, message alerts, etc. The notification manager may also be a notification that appears in the form of a chart or scroll bar text at the top status bar of the system, such as a notification of a background running application, or a notification that appears on the screen in the form of a dialog window. For example, to prompt text messages in the status bar, to emit a prompt tone, to vibrate, to flash an indicator light, etc.

3. Android runtime and system library

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

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

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

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

Wherein the surface manager is used for managing the display subsystem and providing the fusion of the 2D and 3D layers for a plurality of application programs. The media library supports a variety of commonly used audio, video format playback and recording, and still image files, among others. The media library may support a variety of audio-video encoding formats, such as MPEG4, h.264, MP3, AAC, AMR, JPG, PNG, and the like. The three-dimensional graphic processing library is used for realizing three-dimensional graphic drawing, image rendering, synthesis, layer processing and the like. The 2D graphics engine is a drawing engine for 2D drawing.

4. Inner core layer

The kernel layer is a layer between hardware and software. The kernel layer at least comprises a display driver, a camera driver, an audio driver, a sensor driver and the like, and the embodiment of the application does not limit the display driver, the camera driver, the audio driver, the sensor driver and the like.

A display method provided by an embodiment of the present application will be described in detail below with reference to the accompanying drawings.

As shown in fig. 5, taking a mobile phone as the above electronic device for example, a display method provided in the embodiment of the present application may include the following steps:

s501, when the mobile phone runs the first application, the mobile phone detects that the first application applies for the operating system and prohibits the operating system from entering a dormant state.

The first application may be any application installed on the mobile phone, for example, a video APP, a game APP, a reading APP, or a navigation APP.

The video APP is used as a first application example, in order to avoid the phenomenon that the mobile phone is in a dormant state and the mobile phone is blocked when the video APP runs, the video APP can apply for the current WakeLock permission to a power manager (PowerManager)601 in an application program framework layer, and therefore the operating system is forbidden to enter the dormant state.

For example, after the mobile phone detects that the user opens the video APP, the video APP may apply for the WakeLock right of this time to the PowerManager 601. Or after the mobile phone runs the video APP, if it is detected that the mobile phone starts to play a certain video, the video APP can apply for the WakeLock right of this time to the PowerManager 601. Or, in the process of playing a certain video by the video APP, if it is detected that the video is paused, for example, when it is detected that the user clicks a pause button in the video playing interface, the video APP may apply the WakeLock right of this time to the PowerManager 601.

For example, as shown in fig. 6, when the video APP applies for the WakeLock right, the PowerManager 601 may be called, and the PowerManager Service of the PowerManager 601 applies for the WakeLock right of this time to a rights Service (PermissionService) 602. The authority service 602 may configure an android, identify, permission, wake _ LOCK authority in a manifest file in response to an application of the PowerManager 601, and notify the video APP of the acquisition of the current WakeLock authority through the PowerManager 601. Further, the video APP may call the acquire () function through the PowerManager 601 to obtain WakeLock. In the process that the video APP holds the WakeLock, the mobile phone operating system cannot enter a dormant state, namely, the mobile phone display screen cannot be turned off.

Because the display screen can not be out of the screen when the video APP holds the WakeLock, the probability that the same still picture is displayed for a long time when the video APP is operated by the mobile phone is increased, and the risk that the phenomenon of ghost shadow and screen burning occurs on the display screen of the mobile phone is increased at the moment. Therefore, when the mobile phone detects that the running video APP (i.e., the first application) is acquired by the WakeLock, the mobile phone can be triggered to execute the following steps S502-S505 for screen protection, so as to avoid the phenomena of image sticking and screen burning on the display screen of the mobile phone.

S502, the mobile phone starts to monitor whether the display content in the display screen changes.

Illustratively, as also shown in fig. 6, a screen saver module 603 may be provided in the application framework layer of the handset in advance. Still taking the video APP as the first application example, after the video APP calls the PowerManager 601 to obtain the WakeLock, the PowerManager 601 may trigger the screen saver module 603 to run an independent process to start monitoring whether the display content in the display screen changes.

In some embodiments, as also shown in fig. 6, a pixel detection algorithm 604 may be pre-configured in the system library, where the pixel detection algorithm 604 is used to detect whether each pixel unit in the display screen has changed. Because each display picture in the display screen is composed of a plurality of pixel units, each pixel unit has a certain value (which can be called as a pixel value) when displaying. For example, the gray-scale value of a pixel unit may be taken as the pixel value of the pixel unit. Then, the pixel detection algorithm 604 can determine whether the current display content is changed by detecting the pixel value of each pixel unit in the current display frame.

For example, the screen saver module 603 may invoke the pixel detection algorithm 604 described above to periodically obtain pixel values for each pixel element in the display screen. Taking 10 seconds(s) as an example of one period, if the pixel value of each pixel unit acquired this time is the same as the pixel value of each pixel unit acquired last time, it is indicated that the display content in the display screen has not changed in the latest one period (i.e., 10 s). If the pixel values of the pixel units obtained by the screen saver module 603 in 12 consecutive periods are the same, it indicates that the display content in the display screen has not changed in the last 2 minutes (10s × 12).

For another example, after the screen saver module 603 calls the pixel detection algorithm 604 to obtain the pixel values of each pixel unit in the display screen, the preset operation may be performed on the pixel values of each pixel unit to obtain the check value of one pixel unit. For example, the pixel values of the pixel units may be added to obtain a checksum (checksum). Then, if the checksums obtained by the screen saver module 603 in N consecutive cycles are the same or approximately the same, it indicates that the display content in the display screen has not changed in the last N cycles.

Or, some display screens may also periodically calculate the current check value of each pixel unit during the operation process. Taking the OLED display screen as an example, the OLED display screen may periodically obtain the pixel value of each pixel unit in the current display screen, thereby calculating the checksum (checksum) of the entire display screen, and updating the checksum obtained each time in the corresponding register. Then, after the screen saver module 603 calls the pixel detection algorithm 604, the latest checksum may be read from the register corresponding to the OLED display screen. If the read most check sums in the N continuous periods are the same or approximately the same, the display content in the OLED display screen is not changed in the last N periods. Of course, the OLED display screen may also use a value obtained by multiplying each pixel value or an average value of each pixel value as a check value, which is not limited in this embodiment.

In the above embodiment, the screen saver module 603 can detect whether the display content in the entire display screen changes according to the pixel values of the pixel units in the display screen. In other embodiments, the screen saver module 603 can detect whether the display content in a certain area of the display screen changes.

For example, the screen saver module 603 may call a preset pixel detection algorithm 604 to periodically obtain pixel values of each pixel unit in the display screen. Moreover, the screen saver module 603 may call the pixel detection algorithm 604 to compare whether there is a difference between the pixel values of the pixel units obtained last two times. If the pixel values of the pixel units in a certain area are detected to be the same in N continuous periods, the display content in the area is not changed in the last N periods.

Or, the screen saver module 603 may obtain the running state of the first application in real time after starting working, and then determine whether an area where the picture content is not changed appears in the current display picture according to the running state of the first application. For example, taking the first application as the video APP, as shown in (a) in fig. 7, the screen saver module 603 may acquire that the running state of the current video APP is the video playing state, and is according to 16: the picture scale landscape of 9 plays video a. Then, the screen saver module 603 can determine that the video a is being played in the area 701 according to the size of the display screen, and the display contents in the area 702 and the area 703 are not changed when the video is not played in the area 702 and the area 703 except for the area 701.

For another example, taking the first application as the camera APP, as shown in (b) in fig. 7, the screen saver module 603 may acquire that the running state of the current camera APP is the preview photographing state. Since the shot screen in the finder frame 704 may change while the function buttons outside the finder frame 704 do not generally change at the time of the preview shooting, the screen saver module 603 can determine that the display content of the area outside the finder frame 704 in the current display screen has not changed.

It should be noted that the screen saver module 603 may be separately arranged in an application framework layer in the form of a functional module, or the function implemented by the screen saver module 603 may be integrated in another functional module (for example, PowerManager 601) of the mobile phone, which is not limited in this embodiment of the present application.

It can be understood that no matter the whole display content in the display screen of the mobile phone is not changed, or the display content in a certain area in the display screen of the mobile phone is not changed, the phenomena of image sticking and screen burning are easy to occur at the position where the change is not generated in the display screen for a long time. Therefore, when the mobile phone detects that the display content in the display screen has not changed within the preset time, the mobile phone may continue to perform the following step S503 to reduce the afterimage and burn-in phenomena caused by displaying the same content for a long time on the display screen.

S503, if the display content in the display screen does not change within the preset time, the mobile phone shifts the display content by at least one pixel unit along the first direction.

For example, when the screen saver module 603 detects that the current display content has not changed within a preset time period through the preset pixel detection algorithm 604, which indicates that the display screen has displayed the same content within the latest time period, then, to avoid the display screen from having the image sticking and burn-in phenomenon, as shown in fig. 6, the screen saver module 603 may call a preset interface (e.g., WriteCmd () function) in the system library to shift the pixel units in the display register 605 of the display screen, so that the display content in the display screen is shifted along a certain direction (i.e., the first direction).

Illustratively, the display register 605 of the display screen generally stores a pixel array (pixel array) a of the current display picture.

Pixel matrix

Generally, a display screen includes m × n pixel units, i.e., the resolution of the display screen is m × n. The pixel matrix a includes a pixel value of each of the m × n pixel units, i.e., a₁₁To a_mn. As shown in (a) of fig. 8, when the mobile phone runs the video APP, the display panel may be controlled to apply a driving voltage to a corresponding pixel unit according to a pixel value of each pixel unit in the pixel matrix a, so as to drive each pixel unit to present a corresponding display screen 801.

In step S503, the screen saver module 603 may modify the pixel matrix a by calling a preset interface, so that each pixel value in the pixel matrix a is shifted. For example, the screen saver module 603 may call the WriteCmd () function to start the pixel matrix a from a₁₁Modified as₁₄. Thus, the pixel values of the respective pixel units in the entire pixel matrix a are shifted leftward by 4 units. Then, as shown in (b) of fig. 8, when the display panel is displayed according to the modified pixel matrix a, the display screen 801 is shifted by 4 units to the left. ByThe size of the pixel units on the display screen is in the millimeter or micrometer range, and the resolution of the display screen exceeds the refinement range recognized by human eyes at present, so that the user can hardly perceive the change of the display screen 801 after shifting 4 units to the left. Therefore, after the mobile phone detects that the display screen displays the same display picture for a long time, the actual display content in the display screen can be changed by offsetting the pixel unit of the display picture under the condition that a user does not perceive the display picture, so that the phenomena of screen burning and image sticking of the display screen are effectively avoided.

Illustratively, as shown in fig. 9 (a), the mobile phone displays an image 901 composed of black and white color patches in the display screen. The difference between the driving voltage required by each pixel unit in the black color block and the driving voltage required by each pixel unit in the white color block is large, and if the image 901 is not changed within the preset time, screen burn and image sticking phenomena are easy to occur at the boundary position of the black color block and the white color block in the image 901. Then, when the mobile phone detects that the image 901 does not change within a preset time, the screen saver module 603 may invoke a preset interface to modify the pixel matrix a corresponding to the image 901. For example, each pixel cell in the pixel matrix a is shifted to the left by 5 units. Further, when the mobile phone displays the image 901 in accordance with the modified pixel matrix a, as shown in fig. 9 (b), the entire image 901 is shifted leftward by 5 units, and a partial image of the left edge of the image 901 is lost. Meanwhile, a blank area 902 appears on the right side of the image 901 after the image 901 is shifted to the left. The mobile phone may crop the corresponding image along the right edge of the image 901 according to the size of the blank region 902, and fill the cut image in the blank region 902. In this way, the image in the margin region 902 located on the right side of the image 901 does not produce a large contrast with the image 901, so that it is difficult for the user to perceive the visual change caused by the shift of the image 901 with the naked eye.

In other embodiments, if the screen saver module 603 detects that the display content in a certain area of the display screen has not changed for a long time, the mobile phone may also modify the corresponding pixel unit to avoid the screen burn and the image sticking phenomenon on the display screen.

For example, as shown in (a) of fig. 7, the screen saver module 603 of the mobile phone detects that a region 701 in the display screen is playing a video, and display contents in a region 702 and a region 703 other than the region 701 are not changed for a long time. At this time, the pixel units at the boundary between the region 701 and the region 702 and the pixel units at the boundary between the region 701 and the region 703 have high contrast, and the phenomena of image sticking and screen burn-in are likely to occur. In step S503, the screen saver module 603 can modify the pixel cells at the boundary between the region 701 and the region 702 and the pixel cells at the boundary between the region 701 and the region 703. For example, as shown in (a) of fig. 10, the screen saver module 603 may update the region 701, the region 702, and the region 703 by modifying the current pixel matrix a. For example, the screen saver module 603 may shift a first boundary 701a of the region 701 (the first boundary 701a being close to the region 702) upward by 5 units, and the screen saver module 603 may shift a second boundary 701b of the region 701 (the second boundary 701b being close to the region 703) downward by 5 units. It can be seen that the height of the region 701 before updating is H1, and the height of the region 701 after updating is H2. The pixel units at the junction of the area 701, the area 702 and the area 703 before updating are changed, so that the probability of image sticking and screen burning at the junction can be reduced. Meanwhile, the change of the pixel unit at the boundary does not affect the video content in the user viewing area 701, and the phenomena of image sticking and screen burning of the display screen can be improved under the condition that the user does not perceive the change.

For another example, as shown in (b) of fig. 7, the screen saver module 603 of the mobile phone detects that the display content other than the finder frame 704 in the display screen has not changed for a long time. At this time, the pixel units around the viewfinder frame 704 are prone to image sticking and burn-in. In step S503, the screen saver module 603 may update the size of the viewfinder frame 704 by modifying the current pixel matrix a. For example, as shown in (b) of fig. 10, the screen saver module 603 may shift the upper boundary 704a of the view frame 704 upward by 3 units and shift the lower boundary 704b of the view frame 704 upward by 3 units by modifying the current pixel matrix a, thereby reducing the probability of image sticking and burn-in at the boundary between the view frame 704 and other locations. Similarly, the slight shift of the view frame 704 in the display interface does not affect the normal use of the view frame 704 by the user, and the afterimage and burn-in phenomena of the display screen can be improved without the user perceiving the change.

In other embodiments, the mobile phone may further prompt the user in the current display screen that the mobile phone detects that there is a current burn screen risk before modifying the pixel matrix a to shift the pixel cells in the display screen. For example, as shown in fig. 11 (a), after the mobile phone detects that the current display content has not changed within a preset time, a notification message 1001 may be displayed. The user is prompted in a notification message 1001 that the display screen is detected as having a risk of burn-in, which is being reduced by shifting pixel elements in the display screen. For another example, as shown in (b) of fig. 11, after the mobile phone detects that the current display content has not changed within the preset time, the displayable dialog box 1002 asks the user whether to allow the mobile phone to shift the display content in the display screen. If a user click on the allow button 1003 is detected, the handset may shift the display in the display screen by modifying the pixel matrix A as described above. Accordingly, if it is detected that the user clicks the disable button 1003, the cellular phone does not shift the display contents in the display screen. Certainly, the mobile phone can also prompt the user that the mobile phone currently detects that the mobile phone has a screen burning risk through modes such as voice, vibration and the like, and the embodiment of the application does not limit the mobile phone.

In other embodiments, when the screen saver module 603 detects that the current display content has not changed within a preset time period through the preset pixel detection algorithm 604, the mobile phone may also detect the usage status of the mobile phone at that time. If it is detected that the user is using the mobile phone (e.g., looking at the display screen of the mobile phone), the user may be aware of the deviation if the display content in the display screen is shifted, thereby reducing the user experience. Therefore, the mobile phone can determine whether the display content in the display screen is shifted or not according to the current using state of the mobile phone.

For example, the mobile phone may invoke a face recognition algorithm to capture the user image through the front-facing camera. If the user image matched with the face features of the legal user is acquired, which indicates that the legal user of the mobile phone is using the mobile phone, the mobile phone can give up executing the operation of shifting the display content in the display screen, and directly execute the following step S504, so that the problem that the user brings bad use experience to the user due to the fact that the mobile phone automatically shifts the display content in the process of using the mobile phone by the user is avoided. Otherwise, the mobile phone can shift the display content in the display screen by modifying the pixel matrix A according to the method, so that the risks of image sticking and screen burning of the display screen are reduced.

For another example, the mobile phone may call an iris recognition algorithm to acquire an iris image of the user through the front camera. If the iris image matched with the iris characteristics of the legal user is acquired, which indicates that the legal user of the mobile phone is watching the mobile phone, the mobile phone can give up executing the operation of shifting the display content in the display screen, and directly execute the following step S504, so that the problem that the user brings bad use experience to the user due to the fact that the mobile phone automatically shifts the display content in the process of using the mobile phone by the user is avoided. Otherwise, the mobile phone can shift the display content in the display screen by modifying the pixel matrix A according to the method, so that the risks of image sticking and screen burning of the display screen are reduced.

Of course, the mobile phone can also detect whether the user is using the mobile phone through other methods. For example, the mobile phone may determine the change of the placement posture of the mobile phone through data acquired by the gravity sensor or the acceleration sensor, so as to determine whether the user is using the mobile phone according to the change of the placement posture of the mobile phone.

S504, the mobile phone continuously detects whether the display content in the display screen changes.

After the mobile phone edge has shifted the pixel units of the related display content in the display screen, the screen saver module 603 in the mobile phone may continue to call the pixel detection algorithm 604 in the system library to detect whether the display content in the display screen has changed. The specific step of detecting whether the display content in the display screen changes may refer to the related description of step S502, and therefore, the details are not repeated here.

The difference is that after the mobile phone starts the screen protection mechanism to trigger the display screen to deviate the pixel unit, the mobile phone judges whether the monitoring time interval of the display content changing can change. For example, before shifting the pixel units (i.e., in step S502), the mobile phone may set 15 minutes as the monitoring time interval, and when it is detected that none of the display contents of the display screen has changed within 15 minutes, it indicates that the probability of the afterimage and burn-in phenomena is high at this time, and the mobile phone may turn on the screen protection mechanism to perform step S503. After the mobile phone starts the screen saver mechanism to trigger the display screen to deviate from the pixel unit (i.e. after step S503 is executed), the mobile phone can set the monitoring time interval to be shorter because the mobile phone has already identified the high-incidence scene which is the afterimage and burn-in phenomenon at present. For example, the mobile phone may set 5 minutes as the monitoring time interval, and when it is detected that the display content of the display screen has not changed within 5 minutes, which indicates that the user has not operated the mobile phone within 5 minutes after the mobile phone has shifted the pixel units in the display screen, the mobile phone may continue to perform step S505 described below.

And S505, if the display content in the display screen does not change within the preset monitoring time interval, the mobile phone shifts the display content by at least one pixel unit along the second direction.

Still as the example of the display 801 shown in fig. 8, after the mobile phone shifts the display 801 by 4 units to the left by modifying the pixel matrix a of the display 801, if the mobile phone detects that the display 801 does not change within a preset monitoring time interval (e.g., 5 minutes), that is, the display 801 is still in a state of being shifted by 4 units to the left, similar to step S503, the screen protection module 603 of the mobile phone may modify the pixel units in the display register 605 to shift the display content in the display screen along another direction (i.e., the second direction), so as to avoid the phenomena of image sticking and screen burn on the display screen of the mobile phone.

For example, the second direction may be opposite to the first direction in step S503, and the number of pixel units moved by the mobile phone in the second direction is equal to the number of pixel units moved by the mobile phone in the first direction. At this time, after the mobile phone deflects the display screen 801 along the second direction, the original position of the display screen 801 in the display screen is recovered, so that the phenomena of image sticking and screen burning of the display screen of the mobile phone can be avoided, and the deflected display screen is recovered to be in an undeflected state.

For example, as shown in (a) of fig. 12, the mobile phone may continue to shift each pixel cell in the display 801 upward by 4 units, on the basis that the display 801 has been shifted leftward by 4 units. Alternatively, as shown in (b) of fig. 12, the mobile phone may shift each pixel unit in the display screen 801 upward by 4 units without any shift of the display screen 801, which is not limited in this embodiment of the application.

That is to say, when the display content in the display screen does not change for a long time, the mobile phone can periodically shift the display frames in the display screen according to a certain shift sequence, for example, the sequence of left, upward, right and downward, with the preset monitoring time interval as a period, thereby avoiding the display screen from having the phenomena of image sticking and screen burning in time.

In other embodiments, similar to step S503, the mobile phone may further turn on the front-facing camera to capture an image before performing step S505, and determine the use state of the mobile phone at that time according to the captured image. For example, the mobile phone may detect whether a legitimate user of the mobile phone is using the mobile phone through a face recognition algorithm or an iris recognition algorithm. If a legal user of the mobile phone is using the mobile phone, the mobile phone can give up executing the operation of shifting the display content in the display screen, otherwise, the mobile phone can shift the display content in the display screen by modifying the pixel matrix A according to the method, so that the risks of image sticking and screen burning of the display screen are reduced.

Accordingly, as shown in fig. 5, if the display content in the display screen changes within the preset monitoring time interval, the mobile phone may execute the step S504. Still taking the display 801 shown in fig. 8 as an example, after the mobile phone shifts the display 801 by 4 units to the left by modifying the pixel matrix a of the display 801, if the mobile phone detects that the display 801 changes within a preset monitoring time interval (e.g., 2 minutes), it indicates that the user performs an operation on the mobile phone to change the display in the display. At this time, the mobile phone can update the first picture being displayed to the second picture in response to the operation of the user. Further, as in step S504, the mobile phone may start to detect whether the second frame in the display screen changes within a preset monitoring time interval.

For example, the mobile phone may resume periodically acquiring the pixel values of the pixel units in the display screen according to the detection period of 10 s. If the pixel values of the pixel units acquired by the mobile phone in 12 continuous periods are the same, it is indicated that the second interface is always displayed in the display screen in the last 2 minutes. At this time, similar to step S505, the mobile phone may shift the display content by Z (Z is an integer greater than 0) pixel units along the third direction, so as to reduce the risk of the display screen from having the image sticking and burn-in phenomena. Otherwise, the mobile phone may continue to monitor whether the display content in the display screen changes until detecting that the mobile phone exits from the first application, and the screen protection module 603 in the mobile phone may stop monitoring whether the display content in the display screen changes, that is, exit from the screen protection mechanism, thereby reducing power consumption overhead of the mobile phone caused by improving the ghost and burn-in phenomena.

In other embodiments, since the risk of the display screen having the image sticking and the burn-in phenomenon is reduced after the display picture is updated, after detecting that the display content in the display screen changes within the monitoring time interval, the screen protection module 603 in the mobile phone may stop monitoring whether the display content in the display screen changes, that is, exit from the screen protection mechanism, thereby reducing the power consumption overhead of the mobile phone caused by the improvement of the image sticking and the burn-in phenomenon.

In other embodiments, if the mobile phone detects that the first application (e.g., the video APP) currently running releases WakeLock, the mobile phone will automatically enter the sleep state if no user input is detected for a period of time, and the display screen of the mobile phone will be turned off. Therefore, the probability of displaying the same display picture for a long time by the mobile phone is reduced, namely the probability of the phenomena of image sticking and screen burning of the mobile phone is reduced. At this time, the screen protection module 603 in the mobile phone may also stop monitoring whether the display content in the display screen changes, thereby reducing the power consumption overhead of the mobile phone caused by the phenomena of image sticking and screen burning.

In addition, after the mobile phone stops monitoring whether the display content in the display screen changes, the display picture which is already shifted can be restored to the non-shifted state by modifying the current pixel matrix A, so that the mobile phone can start to monitor the display content in the display screen (namely, start the screen protection mechanism) in the state that a user does not perceive until the display content in the display screen stops being monitored (namely, end the screen protection mechanism), and the normal use experience of the user on the mobile phone is prevented from being influenced.

As shown in fig. 13, an embodiment of the present application discloses an electronic device (e.g., the above-mentioned mobile phone). The electronic device may specifically include: a touch screen 3001, the touch screen 3001 including a touch sensor 3006 and a display screen 3007; one or more processors 3002; a memory 3003; a communication module 3008; one or more application programs (not shown); and one or more computer programs 3004, which may be connected by one or more communication buses 3005. Wherein the one or more computer programs 3004 are stored in the memory 3003 and configured to be executed by the one or more processors 3002, the one or more computer programs 3004 comprising instructions that may be used to perform the steps associated with the implementation of the handset in the embodiments described above.

Through the description of the above embodiments, it is clear to those skilled in the art that, for convenience and simplicity of description, the foregoing division of the functional modules is merely used as an example, and in practical applications, the above function distribution may be completed by different functional modules according to needs, that is, the internal structure of the device may be divided into different functional modules to complete all or part of the above described functions.

In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described device embodiments are merely illustrative, and for example, the division of the modules or units is only one logical functional division, and there may be other divisions when actually implemented, for example, a plurality of units or components may be combined or may be integrated into another device, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may be one physical unit or a plurality of physical units, that is, may be located in one place, or may be distributed in a plurality of different places. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a readable storage medium. Based on such understanding, the technical solutions of the embodiments of the present application may be essentially or partially contributed to by the prior art, or all or part of the technical solutions may be embodied in the form of a software product, where the software product is stored in a storage medium and includes several instructions to enable a device (which may be a single chip, a chip, or the like) or a processor (processor) to execute all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The above description is only an embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present disclosure should be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A display method, comprising:

the electronic equipment displays a first interface of a first application;

the electronic equipment detects that the first application applies for a first authority, wherein the first authority is used for forbidding an operating system of the electronic equipment to enter a dormant state;

if the first application acquires the first permission, the electronic equipment detects whether the display content of the first interface changes;

and if the display content of the first interface is not changed, the electronic equipment displays a second interface, wherein the second interface is the interface of the first interface after the first interface deviates by at least one pixel unit along the first direction.

2. The method of claim 1, wherein the electronic device detecting whether the display content of the first interface changes comprises:

and the electronic equipment calls a preset pixel detection algorithm to detect whether each pixel unit in the first interface changes within a first preset time.

3. The method according to claim 2, wherein the step of the electronic device invoking a preset pixel detection algorithm to detect whether each pixel unit in the first interface changes within a first preset time includes:

the electronic equipment calls a preset pixel detection algorithm to periodically acquire a pixel value of each pixel unit in the first interface;

if the pixel value of each pixel unit in the first interface is not changed within the first preset time, the electronic device determines that the display content of the first interface is not changed within the first preset time; otherwise, the electronic equipment determines that the display content of the first interface changes within the first preset time.

4. The method according to claim 2, wherein the step of the electronic device invoking a preset pixel detection algorithm to detect whether each pixel unit in the first interface changes within a first preset time includes:

the electronic equipment calls a preset pixel detection algorithm to periodically acquire the checksum of the display content from the display screen;

if the checksums obtained by the electronic equipment each time are the same within a first preset time, the electronic equipment determines that the display content of the first interface is not changed within the first preset time; otherwise, the electronic equipment determines that the display content of the first interface changes within the first preset time.

5. The method of any of claims 1-4, prior to the electronic device displaying the second interface, comprising:

the electronic equipment modifies a pixel matrix corresponding to the first interface in a display register, so that pixel units in the pixel matrix are shifted by at least one pixel unit along the first direction;

wherein the electronic device displays a second interface comprising:

and the display screen of the electronic equipment displays the second interface according to the modified pixel matrix.

6. The method of any of claims 1-5, after the electronic device displays the second interface, further comprising:

the electronic equipment detects whether the display content of the second interface changes;

if the display content of the second interface is not changed within a second preset time, the electronic device displays a third interface, where the third interface is an interface after the first interface or the second interface shifts by at least one pixel unit along a second direction, the second direction is the same as or different from the first direction, and the second preset time is less than or equal to the first preset time.

7. The method of claim 6, after the electronic device detects whether the display content of the second interface changes, further comprising:

if the electronic equipment updates the second interface to a fourth interface within the second preset time, the electronic equipment starts to detect whether the display content of the fourth interface changes, and the fourth interface is different from the second interface.

8. The method according to any of claims 1-7, wherein the first right is a right to acquire a WakeLock wake lock.

9. The method of claim 8, after the electronic device detects whether the display content of the first interface changes, further comprising:

and if the first application is detected to release the WakeLock, the electronic equipment stops detecting whether the display content of the first interface changes.

10. The method of any of claims 1-9, wherein the second interface includes a blank region, the blank region being a vacant portion of an edge of the display screen after the first interface is shifted by at least one pixel unit along the first direction;

wherein the electronic device displays a second interface comprising:

and the electronic equipment displays the first interface after the offset in the second interface and fills the blank area.

11. The method of claim 10, wherein the electronic device fills the whiteout area, comprising:

the electronic device fills the whiteout area in accordance with the color of the image adjacent to the whiteout area.

12. The method of any of claims 1-11, further comprising, prior to the electronic device displaying the second interface:

the electronic device prompts a user that the display screen has a screen burn risk.

13. A display method, comprising:

the electronic equipment displays a first interface of a first application;

if the first application acquires the first permission, the electronic equipment detects whether display content in a preset area in the first interface changes;

and if the display content in the preset area is not changed, the electronic equipment adjusts the size of the preset area.

14. The method of claim 13, wherein the electronic device resizes the preset area, comprising:

and the electronic equipment adjusts the size of the preset area by adjusting the position of the boundary line of the preset area.

15. The method according to claim 13 or 14, wherein the preset area is an area where the status bar is located, or the preset area is an area except a video frame when the video is played, or the preset area is an area except a view box when the video is shot or previewed.

16. An electronic device, characterized in that the electronic device comprises:

a display screen;

one or more processors;

a memory;

a communication module;

wherein the memory has stored therein one or more computer programs, the one or more computer programs comprising instructions, which when executed by the electronic device, cause the electronic device to perform the display method of any of claims 1-15.

17. A computer-readable storage medium having instructions stored therein, which when run on an electronic device, cause the electronic device to perform the display method of any one of claims 1-15.

18. A computer program product comprising instructions for causing an electronic device to perform the display method of any one of claims 1-15 when the computer program product is run on the electronic device.