CN117095655A

CN117095655A - Image display control method, device, electronic equipment and readable storage medium

Info

Publication number: CN117095655A
Application number: CN202311011419.2A
Authority: CN
Inventors: 张新伟
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2023-08-10
Filing date: 2023-08-10
Publication date: 2023-11-21

Abstract

The application discloses an image display control method, an image display control device, electronic equipment and a readable storage medium, and belongs to the technical field of communication. The image display control method includes: the control screen outputs a signal period of a first signal according to a preset signal period, wherein the first signal is used for refreshing the screen; in the case of generating the first image, controlling the screen to refresh according to the signal period of the first signal and the target refresh rate corresponding to the first image so as to display the first image.

Description

Image display control method, device, electronic equipment and readable storage medium

Technical Field

The application belongs to the technical field of communication, and particularly relates to an image display control method, an image display control device, electronic equipment and a readable storage medium.

Background

Currently, a screen needs to be refreshed with a certain refresh rate during operation so as to output a synthesized image to the screen for display. With the development of electronic device technology, electronic devices support high refresh rates, and switch refresh rates according to different application scenarios to balance performance and power consumption.

In the related art, during the refresh rate switching, since the system takes time to perform the related processing operation of the refresh rate switching, normal transmission and display of frame data is blocked during this period, so that a large delay is generated at the time of the refresh rate switching, resulting in a picture being stuck.

Disclosure of Invention

The embodiment of the application aims to provide an image display control method, an image display control device, electronic equipment and a readable storage medium, which can reduce the time delay of displaying images in the process of switching refresh rates.

In a first aspect, an embodiment of the present application provides an image display control method, including: the control screen outputs signal pulses of a first signal according to a preset signal period, wherein the first signal is used for refreshing the screen; in the case of generating the first image, controlling the screen to refresh according to the signal period of the first signal and the target refresh rate corresponding to the first image so as to display the first image.

In a second aspect, an embodiment of the present application provides an image display control apparatus, including: a control module, wherein: the control module is used for controlling the screen to output signal pulses of a first signal according to a preset signal period, and the first signal is used for refreshing the screen; and the control module is also used for controlling the screen to refresh according to the signal period of the first signal and the target refresh rate corresponding to the first image under the condition of generating the first image so as to display the first image.

In a third aspect, an embodiment of the present application provides an electronic apparatus including a screen device and a display frame; the screen device is used for sending signal pulses of a first signal according to a preset signal period, and the first signal is used for refreshing a screen; the display frame is used for controlling the screen device to refresh the screen according to the signal period of the first signal and the target refresh rate corresponding to the first image under the condition of generating the first image; the screen device is used for refreshing a screen to display a first image.

In a fourth aspect, an embodiment of the present application provides an electronic device comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the method as described in the first aspect.

In a fifth aspect, embodiments of the present application provide a readable storage medium having stored thereon a program or instructions which when executed by a processor implement the steps of the method according to the first aspect.

In a sixth aspect, an embodiment of the present application provides a chip, where the chip includes a processor and a communication interface, where the communication interface is coupled to the processor, and where the processor is configured to execute a program or instructions to implement a method according to the first aspect.

In a seventh aspect, embodiments of the present application provide a computer program product stored in a storage medium, the program product being executable by at least one processor to implement the method according to the first aspect.

In the embodiment of the application, an image display control device controls a screen to output signal pulses of a first signal according to a preset signal period, wherein the first signal is used for refreshing the screen; in the case of generating the first image, controlling the screen to refresh according to the signal period of the first signal and the target refresh rate corresponding to the first image so as to display the first image. According to the method, the image display control device can output a first signal for screen brushing according to a preset period, and under the condition that a first image to be displayed is generated, the refresh display time corresponding to the first image is determined, so that under the condition that the refresh rate changes when the first image is displayed, the signal period of the first signal is not changed, and the screen is controlled to refresh according to the signal period of the first signal and the target refresh rate corresponding to the first image, and the image display time delay caused by refresh rate switching is reduced.

Drawings

Fig. 1 is a schematic diagram of a Vsync signal generated by software Vsync model simulation hardware according to an embodiment of the present application;

FIG. 2 is a schematic diagram of a refresh rate switching process according to an embodiment of the present application;

FIG. 3 is a flowchart of an image display control method according to an embodiment of the present application;

FIG. 4 is a schematic diagram of refresh rates corresponding to different scenes according to an embodiment of the present application;

FIG. 5 is a flowchart of displaying images at different refresh rates according to an embodiment of the present application;

FIG. 6 is a schematic diagram of a process for switching refresh rates according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of an image display control device according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of an electronic device according to an embodiment of the present application;

fig. 9 is a schematic diagram of a hardware structure of an electronic device according to an embodiment of the present application.

Detailed Description

The technical solutions of the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which are obtained by a person skilled in the art based on the embodiments of the present application, fall within the scope of protection of the present application.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type, and are not limited to the number of objects, such as the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.

The terms "at least one," "at least one," and the like in the description and in the claims, mean that they encompass any one, any two, or a combination of two or more of the objects. For example, at least one of a, b, c (item) may represent: "a", "b", "c", "a and b", "a and c", "b and c" and "a, b and c", wherein a, b, c may be single or plural. Similarly, the term "at least two" means two or more, and the meaning of the expression is similar to the term "at least one".

The execution subject of the image display control method provided by the embodiment of the application can be electronic equipment, or at least one of a functional module and an entity module in the electronic equipment, which can realize the image display control method, and the execution subject can be specifically determined according to actual use requirements, and the embodiment of the application is not limited.

The following explains the technical terms related to the embodiments of the present application.

1. Refresh rate

The refresh rate refers to the number of times the electron beam repeatedly scans the image on the screen. The higher the refresh rate, the better the image stability displayed.

Refresh rates are divided into vertical and horizontal refresh rates, with the general reference to refresh rates generally referring to vertical refresh rates. The vertical refresh rate indicates how many times the image of the screen is redrawn per second, i.e., the number of screen refreshes per second, in Hz (hertz).

2. Frame rate

The Frame rate is the frequency at which bitmap images in frames are continuously presented on the display, the english term being collectively referred to as Frame rate, and the Frame rate may also be referred to as Frame frequency in hertz (Hz) in fps.

3. Vertical synchronization pulse (Vertical Synchronization, vsync)

Vsync is added between two frames of images and is output after one frame scan is completed, indicating the end of the previous frame and also indicating the start of a new frame.

The Vsync signal is generated by the DDIC according to a screen refresh rate, for example, the current refresh rate is 60hz, the Vsync signal is periodically generated at 16.67ms, and for another example, the current refresh rate is 120hz, and the Vsync signal is periodically generated at 8.33 ms. The Vsync signal is mainly used for synchronizing the display rhythm of the frame data, so that at least one frame data is rendered and drawn, and the other frame data is displayed on the screen when waiting for the Vsync signal to generate.

The vertical sync pulse is a pulse of longer duration, possibly for one or more lines of scan time, but during this period no pixel signal is present.

The Vsync may include two signals, vsync-app for generating data of a current frame in CPU computation and GPU rendering processes, and Vsync-surface for synthesizing an image to be displayed on a display screen.

It should be noted that Vsync-surface may also be denoted as Vsync-sf.

Currently, there are two Vsync signals in the operating system of an electronic device: the screen generates a hardware Vsync signal, a software Vsync signal that is converted into by the surfeflinger interface. The hardware VSync is a pulse signal, and functions as a switch or triggers a certain operation. The hardware Vsync may be understood as a TE signal of the screen, and when the hardware synthesizer HWC submits data to the screen through a command, the screen may display the data on the next TE signal; software Vsync may be understood as simulating hardware Vsync inside surfeflinger through a set of computational models.

4. TE (Tearing Effect Signal, tear effect Signal) Signal

The tearing effect signal is a feedback signal from the LCD controller to the single chip microcomputer. This signal indicates the display state of the LCD controller. In the non-display period, the TE signal is high. The VSync signal generated by the screen hardware is generally referred to as a TE signal.

5. Display Driver IC (DDIC)

DDIC is one of the main control elements of a panel, also called the "brain" of the panel, and the main function is to send driving signals and data in the form of electrical signals to the display panel, so that image information such as letters, pictures, etc. is presented on the screen by controlling the brightness and color of the screen.

At present, when the display screen works, a certain refresh rate is needed to refresh the image, and the refresh process of the display screen is that each row is from left to right and from top to bottom. When the whole display screen is refreshed, namely one vertical refresh period is completed, a short blank period exists, and the electronic device sends out a Vsync signal to indicate the start of the next refresh period.

In the operating system, three stages of rendering, synthesizing and transmitting and displaying of one frame of data are controlled by the Vsync signal, and a software Vsync model can be used in a display frame to simulate the Vsync signal actually generated by hardware.

The software Vsync model at least comprises a display framework layer and a display driving layer, wherein the display framework layer is responsible for rendering synthesis, and can run according to any frame rate as long as the CPU and GPU performances are high enough, and frames can be obtained as long as the duration between two frames is changed. The display driving layer is responsible for interaction between the driving layer and screen hardware, the screen hardware has the physical characteristics of operation, which is called a physical model, and the screen hardware is required to be informed of the characteristics of display materials, the longest picture maintaining time and the like by a system writing register when the frame is changed, wherein the physical model operates according to a fixed frame rate.

Fig. 1 is a schematic diagram of a Vsync signal generated by software Vsync model simulation hardware according to an embodiment of the present application. As shown in fig. 1, the flow of the Vsync signal generated by the software Vsync model simulation hardware is as follows:

(1) The SurfaceFlinger requests the hardware Vsync to sample in the initialization stage, and after the request is called to the display driver, the display driver reports the Vsync interrupt signal generated by the hardware to the SurfaceFlinger.

(2) After the SurfaceFlinger continuously samples 6 Vsync signals, trigger time corresponding to the hardware signals and reporting period, namely actual refresh rate, are acquired.

(3) After the position and period of the Vsync signal are acquired, the Vsync analog simulates two signals Vsync-App and Vsync-sf, where the Vsync-App is used to control rendering timing for App and the Vsync-sf is used to control compositing timing for surfeflinger.

It should be noted that, a composition flow is provided, because different applications render respective independent interfaces, i.e. layers, and the finally displayed picture needs to be displayed after a plurality of layers are superimposed. For example, three applications including a status bar, a setting bar and a navigation bar respectively render respective layers on a setting interface, and finally display the images as a complete frame through a synthesis flow.

(4) After the Vsync-app and Vsync-sf are generated, the SurfaceFlinger requests to turn off the hardware Vsync sample, and then works with the analog signal, which has the advantage that no hardware Vsync is required to continuously report, and power consumption can be saved.

(5) At the end of each frame synthesis flow, the subsequent surfeflinger can calibrate whether the current Vsync is accurate or not through a synchronous Fence signal brought back by the display driver, and the signal is a hardware Vsync signal corresponding to the current frame when the current frame is actually on the screen, if the current frame is inaccurate and has offset, the calibration can be resampled.

Based on the existing Vsync model, taking the example of switching the frame rate from 120Hz to 60Hz, the flow is as follows when switching the frame rate:

1) The system initiates a frame-cut request that is invoked to the display driver via a SurfaceFlinger, while the SurfaceFlinger requests that the hardware Vsync be resampled.

2) The display driver transmits the frame slicing request to the DDIC through MIPI after a series of logic processes, and the DDIC changes parameters and timing corresponding to 60Hz after receiving the request, and regenerates the periodic TE signal of 60 Hz.

3) The SurfaceFlinger re-simulates the signal position and the actual period corresponding to the new frame rate through sampling TE to Vsync signals.

4) After sampling is completed, the hardware Vsync sampling is closed, and frame cutting is completed.

5) Switching from the original frame rate to the target new frame rate.

In the following, the above frame slicing process is further explained with reference to the accompanying drawings, fig. 2 is a schematic diagram of a process of switching refresh rates provided in an embodiment of the present application, as shown in fig. 2, refresh rates corresponding to frame data 0 and frame data 1 are 120Hz, that is, refresh display durations of frame data 0 and frame data 1 are 8.3ms, after switching refresh rates corresponding to frame data 2 and frame data 3 following frame data 2 to 60Hz, the system performs frame slicing transaction processing, and blocks frame brushing, where the frame slicing transaction processing includes: vsync calibration, HWC correlation function operation, display drive update loading, display drive sending a switch instruction to DDIC, informing the correlation module that frame rate is adjusted to 60Hz, and waiting for 60Hz TE calibration SF Vsync. Because the transaction process needs to take a certain time, a longer time interval exists between the frame data 1 and the frame data 2 before and after the refresh rate is adjusted, and the time interval between two actually measured frames can reach 37ms and about 27Hz, so that a larger time delay occurs in the process of switching the refresh rate.

It should be noted that, the frame data refers to one frame of image data, and one frame of image data corresponds to one image to be displayed.

In the refresh rate switching process shown in fig. 2, since the display system takes some time to process the refresh rate switching transaction during the refresh rate switching period, normal transmission and display of frame data is blocked during the refresh rate switching period, so that a large delay is generated during the frame rate switching period, and Vsync signal reconversion period and time are generated during the frame rate switching period, which corresponds to the problem that Vsync is not uniform in the SurfaceFlinger. Therefore, there is a clear frustration during the frame changing, which is also a reason that the existing Android system cannot change frames frequently, because the frequent frame changing can cause the display to be blocked more and more, the display can be usually only fixed to be continuously operated at a certain frame rate, that is, the frame is usually changed to an application target frame rate when the application is switched, and the frame is hardly changed after the application is entered.

In order to solve the above-mentioned problem, according to the image display control method provided by the embodiment of the present application, the image display control device outputs a first signal according to a preset signal period, where the first signal is used to refresh the screen, and in the case of generating the first image, the image display control device controls the screen to refresh according to the signal period of the first signal and a target refresh rate corresponding to the first image, so as to display the first image. In this way, the image display control device outputs the first signal according to the preset period, and under the condition of generating the first image to be displayed, the screen is controlled to refresh according to the signal period of the first signal and the target refresh rate corresponding to the first image so as to display the first image, so that under the condition of updating the refresh rate, the first image can be quickly displayed at the signal position corresponding to the first image, without changing the signal period of the first signal, executing the processing operations such as Vsync calibration, HWC related function operation, display drive update loading, display drive sending a switching instruction to the DDIC, notifying the related module frame rate to be adjusted to 60Hz, waiting for 60Hz TE calibration SF Vsync and the like, and the time delay of image display when the refresh rate is switched is reduced.

The image display control method provided by the embodiment of the application is described in detail below through specific embodiments and application scenes thereof with reference to the accompanying drawings.

Fig. 3 is a flowchart of an image display control method according to an embodiment of the present application, as shown in fig. 3, the image display control method may include the following steps S201 and S202:

step S201: the image display control device controls the screen to output signal pulses of the first signal according to a preset signal period.

The first signal is used for refreshing a display image.

Alternatively, in the embodiment of the present application, the first signal may be a TE signal output through screen hardware; alternatively, the first signal may be another signal, for example, a signal for transmitting related data, which is not limited in the present application.

It should be noted that, the explanation of the TE signal may be referred to above, and will not be repeated here.

Alternatively, in an embodiment of the present application, one signal pulse may include one high level during which the screen is not displayed and one low level during which the screen performs a refresh display operation.

For ease of description, the signal pulses of the TE signal may be referred to as TE signal pulses.

Alternatively, in an embodiment of the present application, the signal period of the first signal may be determined based on a reference refresh rate.

Further alternatively, the reference refresh rate may be an integer multiple of 120 Hz. The reference refresh rate may be 120Hz, 240Hz, 360Hz, or the like, and the reference refresh rate may be specifically set according to actual requirements, which is not limited by the embodiment of the present application.

Illustratively, in the case where the reference refresh rate is 240Hz, the signal period of the first signal may be 4.166ms; in the case where the reference refresh rate is 360Hz, the signal period of the first signal may be 2.777ms.

It will be appreciated that a reference refresh rate of 240Hz indicates that the screen hardware outputs 240 first signals per second, and that the duration of one first signal is approximately 4.166ms, i.e. the duration of one first signal is equal to 1/240, i.e. the period of the first signal is 4.166ms.

Illustratively, the image display control device may control the screen hardware to output the TE signal at 240Hz and control the display frame to refresh the screen to display an image according to the TE signal.

Step S202: when the first image is generated, the image display control device controls the screen to refresh according to the signal period of the first signal and the target refresh rate corresponding to the first image so as to display the first image.

Alternatively, in the embodiment of the present application, the first image may be any image such as a game interface image, a video interface image, or a chat session interface image, which is not limited in the embodiment of the present application.

Optionally, in the embodiment of the present application, the image display control device may draw and synthesize each layer of the interface to be displayed of the application through the display frame, so as to obtain the first image.

Optionally, in an embodiment of the present application, the target refresh rate corresponding to the first image is determined based on at least one of:

the frame rate of the first application, wherein the first image is an interface image of the first application;

the frame rate of the first video, the first image is an image in the first video;

the rate of sliding of the screen by the user.

Alternatively, the first application may be any application that needs a display interface, such as a game application, a video playing application, or a map navigation application, which is not limited in the embodiment of the present application.

Further, the frame rate of the first application may be 30fps, 60fps or 90fps, which is not limited by the embodiment of the present application.

Optionally, the first video may be a video collected by a camera or an online video played, etc.

Further, the frame rate of the first video may be 30fps, 60fps, or 90fps, which is not limited in the embodiment of the present application.

Alternatively, the image display control means may switch the refresh rate of the screen according to the sliding speed of the sliding input performed by the user on the screen. The image display control apparatus changes frames based on a sliding speed of a user on a screen of the electronic device, increases the refresh rate when the sliding speed is greater than or equal to a first threshold, and decreases the refresh rate when the sliding speed is less than the first threshold.

Alternatively, in the embodiment of the present application, the image display control device may determine a refresh timing corresponding to the first image according to a signal period of the first signal and a target refresh rate corresponding to the first image, and refresh the screen to display the first image when the refresh timing arrives.

Illustratively, taking the first signal as a TE signal and the first signal having a signal period of 4.166ms (i.e., a reference refresh rate of 240 Hz) and a target refresh rate of 120Hz as an example, in the case of refreshing the display image 1 by the screen, the screen is refreshed once every two TE signals, so that the screen is refreshed at a refresh rate of 120Hz to display the image 1 without changing the signal period of the TE signal output by the hardware.

According to the image display control method provided by the embodiment of the application, the image display control device can output the first signal for screen brushing according to the preset period, and under the condition of generating the first image to be displayed, the refresh display time corresponding to the first image is determined, so that under the condition that the refresh rate changes when the first image is displayed, the signal period of the first signal is not changed, and the screen is controlled to refresh according to the signal period of the first signal and the target corresponding to the first image, and the image display time delay caused by refresh rate switching is reduced.

Alternatively, in the embodiment of the present application, the process of the step S202 may include the following steps S202a and S202b:

step S202a: the image display control device determines a target signal pulse of the first signal according to the target refresh rate and the signal period of the first signal.

Step S202b: the image display control device controls the screen to refresh when the output signal pulse is the target signal pulse in the process of periodically outputting the first signal so as to display the first image.

Optionally, in an embodiment of the present application, the target signal pulse is used for screen refreshing to display the first image.

Optionally, in the embodiment of the present application, the image display control device may determine the target signal pulse according to a ratio of a reference refresh rate corresponding to the signal period of the first signal to a target refresh rate corresponding to the first image.

For example, taking the first signal as the TE signal, the signal period of the TE signal is 4.166ms, and the target refresh rate is 120Hz as an example, when the screen refreshes the display image 1, the reference refresh rate corresponding to the signal period of the TE signal is 240Hz, and the ratio of the reference refresh rate to the target refresh rate is 2, the screen is refreshed once every two TE signal pulses, the target signal pulse is the TE signal pulse corresponding to the TE signal pulse at two TE signal pulses when the previous frame image of the image 1 is displayed, and the target signal pulse is the 5 th TE signal pulse output assuming that the TE signal pulse corresponding to the previous frame image of the image 1 is the 3 rd TE signal pulse output.

Note that, the signal period of the TE signal pulse is 4.166ms, assuming that the time when the first TE signal pulse is output is 0ms, the time when the second TE signal pulse is output is 4.166ms, the time when the third TE signal pulse is output is 8.332ms, the time when the fourth TE signal pulse is output is 12.5ms, and so on, the time when the nth TE signal pulse is output is 4.166 ×1, when the screen is refreshed once every two TE signal pulses, the target signal pulse is the 8.332ms output signal pulse; when the screen is refreshed every three TE signal pulses, the target signal pulse is a signal pulse output by 12.5 ms.

Further exemplary, taking the first signal as a TE signal, the signal period of the TE signal is 4.166ms, and the target refresh rate is 80Hz as an example, in the case of refreshing the screen to display the image 1, the ratio of the reference refresh rate to the target refresh rate is 3, the screen is refreshed once every three TE signal pulses, the target signal pulse is a TE signal pulse corresponding to the TE signal pulse interval of three TE signal pulses when the previous frame image of the image 1 is displayed, and the target signal pulse is a 6 th TE signal pulse output assuming that the TE signal pulse corresponding to the previous frame image of the image 1 is the 3 rd TE signal pulse output.

It should be noted that, the relationship between the signal period and the refresh rate may be referred to the above description, and will not be repeated here.

Optionally, in the embodiment of the present application, the image display control device may determine, after the first image is generated, the target signal pulse according to the signal period of the first signal and the target refresh rate corresponding to the first image when a preset condition is satisfied.

Optionally, the preset condition may include at least one of:

receiving a sliding input of a user to a screen, wherein the sliding input is used for triggering the refresh rate of a screen to be switched;

And switching to an application interface for displaying the target application.

For example, the image display control device may determine the target refresh rate corresponding to the first image according to a sliding speed of the sliding input after receiving the sliding input of the user to the screen. For example, when the sliding speed of the sliding input is in the speed interval 1, it is determined that the target refresh corresponding to the first image is the refresh rate corresponding to the speed interval 1.

For example, the image display control device may determine, when the current interface is switched to the application interface displaying the target application, the target refresh rate corresponding to the first image according to the frame rate of the target application. For example, the target application is a game application, and the frame rate of the game application is 60fps, and then the target refresh rate corresponding to the first image is determined to be 60Hz.

It should be noted that, with the development of screen display technologies, existing partial screens already support more gears of 120Hz, 90Hz, 80Hz, 72Hz, 60Hz, 48Hz … … Hz, 1Hz, etc., and in order to balance display performance and power consumption of electronic devices, the partial screens are usually switched to different refresh rates under different display scenes. And the corresponding frame rate gear APP cannot be flexibly controlled. The method has the advantages that the matched frame rate is effectively and reasonably utilized, the smoothness and the power consumption of the electronic equipment are beneficial, and the electronic equipment can play a positive role in the smoothness and the power consumption of an interface when the frame rate can be dynamically changed in different scenes according to different types of applications.

FIG. 4 is a schematic diagram of refresh rates corresponding to different scenes, as shown in FIG. 4, a refresh rate of 1Hz is typically used in a scene where still images are displayed, and a refresh rate of 30Hz is typically used in a video or game scene; in the scene of playing video and film, the refresh rate is 48Hz, the refresh rate is 60Hz in the slow sliding scene, the refresh rate is 80Hz in the medium sliding scene, the refresh rate is 90Hz in the high-frame game or excessive animation scene, and the refresh rate is 120Hz in the performance scene requiring smooth animation, thus, the extremely power saving in the low-frame rate, the energy efficiency balance in the medium-frame rate and the effect flow in the high-frame rate are realized by switching to different refresh rates in different scenes.

Alternatively, in the embodiment of the present application, in the process of periodically outputting the first signal, the image display control device records the time sequence position of each signal pulse of the first signal, and takes the currently output signal pulse as the target signal pulse when the time sequence position of the currently output signal pulse is the time sequence position of the target signal pulse.

For example, taking the reference refresh rate of 240Hz as an example, the image display control device may output a TE signal to the driving layer at intervals of 4.166 ms, and the driving layer may brush frames at any time when receiving the TE signal, and at this time, the driving layer may refresh and display an image on the screen at a time corresponding to the TE signal according to the specified target TE signal.

Alternatively, in the application embodiment, the image display control may control the screen to perform a scanning operation to refresh the first image to be displayed on the screen.

Alternatively, in the embodiment of the present application, the image display control device may read image data of a first image from the image buffer, and control the screen to display the first image according to the image data of the first image after the image data of the first image is read.

In the embodiment of the application, the screen hardware can generate 240Hz or 360HzTE image brushing signals, and reconstruct the current frame changing flow and the Vsync model, so that the display frame can be aligned with the target TE position image brushing, the frame cutting has no time delay, the seamless frame changing capability of the whole display system is realized, and the support is provided for high-frequency frame changing in many scenes. Compared with the TE of the traditional Gao Zhenbing, after the system is switched to 60Hz, the Vsync signal is periodically generated at a fixed 60Hz, and after the system is switched to 120Hz, the corresponding Vsync signal is periodically generated at 120 Hz. Therefore, by reconstructing the TE prediction model, the frame data synthesized by the display frame is displayed on the screen hardware TE interval number position of the corresponding frame rate, thereby realizing the seamless frame changing function.

Optionally, in the embodiment of the present application, the process of determining the target signal pulse in step S202a according to the reference refresh rate and the target refresh rate corresponding to the first image may include the following steps S202a1 and S202a2:

step S202a1: the image display control device determines a signal pulse interval according to the target refresh rate and the signal period of the first signal.

The signal pulse interval is a signal pulse interval between the first signal pulse and the target signal pulse; the first pulse signal is a signal pulse corresponding to the display of the previous frame of the first image.

Step S202a2: the image display control device determines the target signal pulse according to the first signal pulse and the signal pulse interval.

Alternatively, in an embodiment of the present application, the first signal interval may include at least one first signal interval.

It should be noted that, for the description of determining the signal pulse interval according to the target refresh rate and the signal period of the first signal, reference may be made to the above, and details thereof are not repeated here.

For example, when the signal period of the TE signal is 4.166ms, that is, the reference refresh rate is 240Hz and the target refresh rate is 120Hz, the TE signal corresponding to the first image is separated from the TE signal corresponding to the image of the previous frame of the first image by two TE signals; and when the reference refresh rate is 240Hz and the target refresh rate is 80Hz, the TE signal corresponding to the first image and the TE signal corresponding to one frame of image on the first image are separated by three TE signals.

Note that, in the case where the reference refresh rate is 240Hz, the duration of each TE signal is 4.166ms, and the signal period of the output TE signal is 4.166ms, that is, one signal pulse of the TE signal is output every 4.166 ms.

By way of example, taking the reference refresh rate of 240Hz, the target refresh rate of 120Hz as an example, the signal period of the TE signal output at the reference refresh rate of 4.166ms, the signal period of the TE signal output at the target refresh rate of 8.33ms, since the signal period of the TE signal required to be output at the target refresh rate of 8.33ms is about twice the signal period of the TE signal output at the reference refresh rate, the image display apparatus can control the refreshing of the screen once every two TE signals at intervals in the case of continuously outputting the TE signal with the signal period of 4.166ms, that is, display the first image at a timing corresponding to the previous frame image display interval of 8.33ms of the first image to be displayed.

Fig. 5 is a flowchart of displaying images at different refresh rates according to an embodiment of the present application. As shown in fig. 5, for example, the reference refresh rate is 240Hz, the target refresh rate corresponding to the frame data 1 is 120Hz, and the image display control device aligns the output target signal pulse after 8.3ms after the previous frame of the frame data 1, that is, the frame data 0 is displayed, and displays the image corresponding to the frame data 1 on the screen, that is, controls the interval between two display images to be 2 TE signals.

The target refresh rate corresponding to the frame data 2 is 80Hz, and the image display control device aligns the output target signal pulse after the previous frame of the frame data 2, namely 12.2ms after the frame data 1 is displayed, and displays the image corresponding to the frame data 2 on the screen, namely controls the image data to be displayed every two times by 3 TE signals.

The target refresh rate corresponding to the frame data 3 is 60Hz, and the image display control device aligns the output target signal pulse after 16.6ms after the previous frame of the frame data 3, namely, the frame data 2 is displayed, and displays the image corresponding to the frame data 3 on the screen, namely, controls 4 TE signals every two times of display image data interval.

The target refresh rate corresponding to the frame data 4 is 120Hz, and the image display control device aligns the output target signal pulse after the previous frame of the frame data 4, namely 8.3ms after the frame data 3 is displayed, and displays the image corresponding to the frame data 4 on the screen, namely controls the image data to be displayed every two times by 2 TE signals.

The target refresh rate corresponding to the frame data 5 is 120Hz, and the image display control device aligns the output target signal pulse after the previous frame of the frame data 5, namely 8.3ms after the frame data 4 is displayed, and displays the image corresponding to the frame data 5 on the screen, namely controls the image data to be displayed every two times by 2 TE signals.

In the embodiment of the application, the image display control device brushes the image display at the designated TE position, so that seamless frame cutting is realized, and more reasonable frame rate can be adapted for various applications according to specific scenes. In addition, the frame rate rhythm of the display frame layer frame data production and the display driving layer consumption end keeps consistent, the problem of inconsistent frame rate caused by buffer area accumulation is optimized, and the frame is beneficial to frame smoothness and smoothness.

Optionally, in the embodiment of the present application, the image display control method provided in the embodiment of the present application further includes the following step S204:

step S204: in the case where there is a display delay of the first image, the control screen displays the first image when outputting the next first signal of the target signal pulse.

Alternatively, in the embodiment of the present application, in the case where the image display control device detects that the first image is not refreshed after the target signal pulse is output, the image display control device may control the screen to display the first image after outputting the next first signal of the target signal pulse, thereby reducing the image display delay.

For example, assuming that the frame data 3 is expected to be refreshed at 60Hz, but is not displayed at a timing corresponding to the TE signal at the designated position of 60Hz due to untimely scheduling by the CPU, the image display control device may screen the frame data at the next TE position, at which time the frame data is displayed at 48Hz, and the image buffer has no increased accumulation buffer due to the timely brushing of the frame data.

Alternatively, in the embodiment of the present application, the image display control device may determine the next signal pulse of the target signal pulse according to the position of the target signal pulse or the signal period of the target signal pulse.

Illustratively, assuming that the target signal pulse is the 30 th TE signal pulse that is periodically output, the next first signal of the target signal pulse is the 31 st TE signal pulse that is periodically output.

Further exemplary, taking the signal period of the TE signal as 4.166ms as an example, assuming that the target signal pulse is the signal pulse output at 4.166ms, the next TE signal pulse is the TE signal pulse output after the target signal pulse is output by an interval 4.166 ms.

It should be noted that, in the related art, when an image frame is not displayed on the screen at a time corresponding to the corresponding TE signal, that is, when there is a display delay, the screen will display a repeated frame by self-brushing, which will result in that 120Hz will drop the frame to 60Hz and 60Hz will drop the frame to 30Hz. At the same time, this problem can lead to buffer accumulation, as the buffer is occupied by a frame of the display frame that is not synthesized, resulting in a significant frame dropping and jamming effect during the display process.

Fig. 6 is a schematic diagram of a process of switching refresh rates according to an embodiment of the present application. As shown in fig. 6, the refresh rate corresponding to the zeroth frame image is 120Hz, that is, the signal period required for displaying the zeroth frame image is 8.3ms, after the zeroth frame image data is synthesized by the hardware synthesizer HWC, the zeroth frame image data is transmitted to the display driver, the display driver acquires the position of the TE signal pulse for displaying the zeroth frame data, and after receiving the TE signal pulse, the zeroth frame image data is refreshed and displayed on the screen. The refresh rate corresponding to the first frame image is 80Hz, that is, the signal period required for displaying the first frame image is 12.5ms, after the first frame image data is synthesized by the hardware synthesizer HWC, the first frame image data is transmitted to the display driver, the display driver acquires the TE signal pulse for displaying the first frame image data, and after receiving the TE signal pulse, the first frame image data is refreshed and displayed on the screen, specifically, the display driver control and the previous frame (that is, the zeroth frame) are separated by 8.3ms, and the TE signal is aligned. The refresh rate corresponding to the second frame image is 60Hz, after the second frame image data is synthesized by the hardware synthesizer HWC, the first frame image data is transmitted to the display driver, the display driver acquires TE signal pulses for displaying the second frame image data, and after receiving the TE signal pulses, the first frame image data is refreshed and displayed on the screen, specifically, the display driver is controlled to be 12.5ms away from the previous frame (i.e. the first frame) and aligned with the TE signal. The third frame of image data is expected to be refreshed at 60Hz, but is not scheduled in time by the CPU, resulting in having no TE to catch up with the 60Hz specified location, but the frame of data is immediately displayed on the screen at the next TE location, at which time the frame of data is displayed at 48Hz, and the present application can reduce display delay compared to the related art display of the data at 30Hz.

It should be noted that, the image display device may control the screen hardware to continuously output a TE signal of 240Hz, and then select TE signal pulses for controlling the display of the first image from the output TE signals according to the refresh rate actually required by the first image, so as to refresh and display the first image based on the refresh rate actually required by the first image.

In the embodiment of the application, under the condition that one image frame is not displayed on the screen at the moment corresponding to the corresponding TE signal, the image display control device designates the nearest TE position to display the image on the screen, then the next frame data synthesis is carried out, the data transmission in the image display process can be completed only through double buffer exchange, no accumulation buffer exists, once a certain frame has delay, seamless frame cutting can be carried out, and thus the influence of frame dropping and blocking caused by the delay is reduced.

According to the image display control method provided by the embodiment of the application, on one hand, the display frame establishes a model synchronous screen hardware TE physical model, the TE screen-on positions with the minimum number of intervals are designated, and the TE positions are informed to the display driver when the images are brushed, so that the effect of seamless frame changing can be achieved. Based on the achievement, the frame can be changed based on the sliding speed of the electronic equipment on the screen, and the final goal of win-win performance and power consumption is achieved. On the other hand, by controlling the screen to display a frame image when the next first signal is output in the case where there is a display delay of the frame image, frame dropping is avoided. On the other hand, the method realizes the instant brushing and instant displaying, the frame rate of the screen is not fixed, the latest TE signal is immediately selected to send out the frame data after waiting for the preparation of the frame data, and the time from the CPU of the frame data to the display is greatly optimized. The seamless frame cutting capability of the scheme ensures that the display frame renders the synthesized image, the vertical horse can brush the image at the next TE position, and the screen speed of one frame of image can be improved.

Alternatively, in the embodiment of the present application, the process of controlling the screen to be refreshed in the step S202 may include the following steps S202c and S202d:

step S202c: the image display control means determines a target screen area in the screen based on the image information of the first image.

Step S202d: the image display control device controls the screen to refresh the target screen area according to a preset scanning mode.

Alternatively, in an embodiment of the present application, the image information of the first image may include at least one of: size, display scale.

Illustratively, in the case where the first image screen display aspect ratio is equal to the screen aspect ratio, then the control screen scans based on a default scan start column and a default scan end column.

Illustratively, the default scan start column is the first column of the screen and the default scan end column is the last column of the screen. That is, the screen does not need to consider the picture display aspect ratio of the target video, so that the scanning start column and the scanning end column of the screen do not need to be redetermined, and the screen is directly scanned according to the default scanning start column and the default scanning end column. Since the picture display aspect ratio of the target video is equal to the screen aspect ratio at this time, the picture of the target video can be displayed just on the screen, and there is no area on the screen where the picture is not displayed.

In an exemplary case where the first image picture display width height is not equal to the aspect ratio of the screen, the image display control determines a target screen region picture scanning area in the screen according to the aspect ratio of the first image so that the re-determined target screen region matches the picture display aspect ratio of the first image, and then controls the screen to scan in accordance with the target screen picture scanning area so as to present the target video in the target screen picture scanning area.

For example, taking the aspect ratio of the first image as 21:9 and the aspect ratio of the first image as 16:9 as an example, controlling the screen to adjust the scanning start line and the scanning end line of the screen scanning area by the first control signal, that is, changing the scanning start line from the original first line to the 281 st line and changing the scanning end line from the original last line to the 1880 th line, thereby obtaining the target screen scanning area of the 281 st line of the scanning start line and the 1880 th line of the scanning end line, and finally controlling the screen to scan in the target screen scanning area. That is, the frames 21:9 are scanned from 281 lines of the screen until 1880 lines of the screen are finished, and one frame of the scanning is completed.

In this way, in the case where the image proportion of the first image does not match the proportion of the screen, compared with scanning by inserting a black border, when the picture display aspect ratio of the target video to be displayed does not match the aspect ratio, the embodiment of the application performs scanning by redetermining the screen picture scanning area, that is, redetermining the scanning start line and the scanning end line of the screen, in the redetermined target screen area, instead of performing scanning by inserting a black border, thereby saving the scanning time and further improving the refresh rate of the screen.

It should be noted that, the foregoing method embodiments of the present application, or various possible implementation manners in the method embodiments may be executed alone, or may be executed in combination with each other on the premise that no contradiction exists, and may be specifically determined according to actual use requirements, which is not limited by the embodiment of the present application.

The embodiment of the application provides electronic equipment, which can comprise a screen device and a display frame, wherein the screen device is used for sending signal pulses of a first signal according to a preset signal period, and the first signal is used for refreshing a screen; the display frame is used for controlling the screen device to carry out screen refreshing according to the signal period of the first signal and the target refresh rate corresponding to the first image under the condition of generating the first image; the screen device is used for refreshing a screen to display a first image.

Optionally, in an embodiment of the present application, the electronic device further includes: a display drive; the display frame is used for determining target signal pulses in the first signal according to the signal period of the first signal and the target refresh rate corresponding to the first image under the condition of generating the first image; the display frame is used for sending the indication information of the target signal pulse to a display driver; the display driver is configured to send image data of the first image to the screen device when the signal pulse output by the screen device is a target signal pulse; the screen device is used for refreshing a screen to display a first image when receiving the image data sent by the display drive.

It should be noted that, the explanation of this embodiment may be specifically referred to the description of the embodiment section of the method, and will not be repeated here.

According to the image display control method provided by the embodiment of the application, the execution subject can be an image display control device. In the embodiment of the present application, an image display control device executes an image display control method by using an image display control device as an example, and the image display control device provided in the embodiment of the present application is described.

Fig. 7 is a schematic structural diagram of an image display control device according to an embodiment of the present application, and as shown in fig. 7, the image display control device may include: a control module 701; the control module 701 is configured to control the screen to output a signal pulse of a first signal according to a preset signal period, where the first signal is used to refresh the screen; the control module 701 is further configured to control, in a case of generating the first image, the screen to perform screen refresh according to a signal period of the first signal and a target refresh rate corresponding to the first image, so as to display the first image.

Optionally, in an embodiment of the present application, the control module is specifically configured to determine a target signal pulse of the first signal according to a target refresh rate and a signal period of the first signal; the control module is specifically configured to control the screen to refresh the screen to display the first image when the output signal pulse is the target signal pulse in the process of periodically outputting the first signal.

Optionally, in an embodiment of the present application, the control module is specifically configured to determine a signal pulse interval according to a target refresh rate and a first signal period of the first signal, where the signal pulse interval is a signal pulse interval between a first signal pulse and a target pulse signal; the first pulse signal is a signal pulse corresponding to the display of the previous frame of the first image; the control module is specifically configured to determine a target signal pulse according to the first signal pulse and the signal pulse interval.

Optionally, in an embodiment of the present application, the control module is further configured to, when outputting a next first signal of the target signal pulse in a case where there is a display delay of the first image, control the screen to display the first image.

Optionally, in an embodiment of the present application, the control module is specifically configured to determine a target screen area in a screen according to image information of the first image; the control module is specifically configured to control the screen to refresh the target screen area according to a preset scanning mode.

The image display control device provided by the embodiment of the application controls a screen to output signal pulses of a first signal according to a preset signal period, wherein the first signal is used for refreshing the screen; in the case of generating the first image, controlling the screen to refresh according to the signal period of the first signal and the target refresh rate corresponding to the first image so as to display the first image. According to the method, the image display control device can output a first signal for screen brushing according to a preset period, and under the condition that a first image to be displayed is generated, the refresh display time corresponding to the first image is determined, so that under the condition that the refresh rate changes when the first image is displayed, the signal period of the first signal is not changed, and the screen is controlled to refresh according to the signal period of the first signal and the target refresh rate corresponding to the first image, and the image display time delay caused by refresh rate switching is reduced.

The image display control device in the embodiment of the application can be an electronic device or a component in the electronic device, such as an integrated circuit or a chip. The electronic device may be a terminal, or may be other devices than a terminal. By way of example, the electronic device may be a mobile phone, tablet computer, notebook computer, palm computer, vehicle-mounted electronic device, mobile internet appliance (Mobile Internet Device, MID), augmented reality (augmented reality, AR)/Virtual Reality (VR) device, robot, wearable device, ultra-mobile personal computer, UMPC, netbook or personal digital assistant (personal digital assistant, PDA), etc., but may also be a server, network attached storage (Network Attached Storage, NAS), personal computer (personal computer, PC), television (TV), teller machine or self-service machine, etc., and the embodiments of the present application are not limited in particular.

The image display control device in the embodiment of the application may be a device having an operating system. The operating system may be an Android operating system, an ios operating system, or other possible operating systems, and the embodiment of the present application is not limited specifically.

The image display control device provided by the embodiment of the present application can implement each process implemented by the embodiments of the methods of fig. 1 to 6, and in order to avoid repetition, a detailed description is omitted here.

Optionally, as shown in fig. 8, the embodiment of the present application further provides an electronic device 800, including a processor 801 and a memory 802, where the memory 802 stores a program or an instruction that can be executed on the processor 801, and the program or the instruction implements each step of the embodiment of the image display control method when executed by the processor 801, and the steps achieve the same technical effects, so that repetition is avoided, and no further description is given here.

The electronic device in the embodiment of the application includes the mobile electronic device and the non-mobile electronic device.

Fig. 9 is a schematic hardware structure of an electronic device implementing an embodiment of the present application.

The electronic device 100 includes, but is not limited to: radio frequency unit 101, network module 102, audio output unit 103, input unit 104, sensor 105, display unit 106, user input unit 107, interface unit 108, memory 109, and processor 110.

Those skilled in the art will appreciate that the electronic device 100 may further include a power source (e.g., a battery) for powering the various components, and that the power source may be logically coupled to the processor 110 via a power management system to perform functions such as managing charging, discharging, and power consumption via the power management system. The electronic device structure shown in fig. 9 does not constitute a limitation of the electronic device, and the electronic device may include more or less components than shown, or may combine certain components, or may be arranged in different components, which are not described in detail herein.

The processor 110 is configured to control the screen to output a signal pulse of a first signal according to a preset signal period, where the first signal is used to refresh the screen; the processor 110 is further configured to, in a case of generating the first image, control the screen to perform screen refresh according to a signal period of the first signal and a target refresh rate corresponding to the first image, so as to display the first image.

Optionally, in an embodiment of the present application, the processor 110 is specifically configured to determine a target signal pulse of the first signal according to a target refresh rate and a signal period of the first signal; the processor 110 is specifically configured to control the screen to refresh the screen to display the first image when the output signal pulse is the target signal pulse during the period of outputting the first signal.

Optionally, in an embodiment of the present application, the processor 110 is specifically configured to determine a signal pulse interval according to the target refresh rate and a first signal period of the first signal, where the signal pulse interval is a signal pulse interval between a first signal pulse and a target pulse signal; the first pulse signal is a signal pulse corresponding to the display of the previous frame of the first image; the processor 110 is specifically configured to determine a target signal pulse according to the first signal pulse and the signal pulse interval.

Optionally, in an embodiment of the present application, the processor 110 is further configured to control the screen to display the first image when outputting a next first signal of the target signal pulse in a case where there is a display delay of the first image.

Optionally, in an embodiment of the present application, the processor 110 is specifically configured to determine a target screen area in a screen according to image information of the first image; the processor 110 is specifically configured to control the screen to refresh the target screen area according to a preset scanning manner.

According to the electronic equipment provided by the embodiment of the application, the electronic equipment control screen outputs the signal pulse of the first signal according to the preset signal period, and the first signal is used for refreshing the screen; in the case of generating the first image, controlling the screen to refresh according to the signal period of the first signal and the target refresh rate corresponding to the first image so as to display the first image. According to the method, the electronic equipment can output a first signal for screen brushing according to a preset period, and under the condition of generating a first image to be displayed, the refreshing display time corresponding to the first image is determined, so that under the condition that the refreshing rate changes when the first image is displayed, the signal period of the first signal is not changed, and the screen is controlled to refresh according to the signal period of the first signal and the target refreshing rate corresponding to the first image, and the image display time delay caused by refreshing rate switching is reduced.

It should be appreciated that in embodiments of the present application, the input unit 104 may include a graphics processor (Graphics Processing Unit, GPU) 1041 and a microphone 1042, the graphics processor 1041 processing image data of still pictures or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The display unit 106 may include a display panel 1061, and the display panel 1061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 107 includes at least one of a touch panel 1071 and other input devices 1072. The touch panel 1071 is also referred to as a touch screen. The touch panel 1071 may include two parts of a touch detection device and a touch controller. Other input devices 1072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and so forth, which are not described in detail herein.

Memory 109 may be used to store software programs as well as various data. The memory 109 may mainly include a first memory area storing programs or instructions and a second memory area storing data, wherein the first memory area may store an operating system, application programs or instructions (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. Further, the memory 109 may include volatile memory or nonvolatile memory, or the memory x09 may include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. The volatile memory may be random access memory (Random Access Memory, RAM), static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (ddr SDRAM), enhanced SDRAM (Enhanced SDRAM), synchronous DRAM (SLDRAM), and Direct RAM (DRRAM). Memory 109 in embodiments of the present application includes, but is not limited to, these and any other suitable types of memory.

Processor 110 may include one or more processing units; optionally, the processor 110 integrates an application processor that primarily processes operations involving an operating system, user interface, application programs, etc., and a modem processor that primarily processes wireless communication signals, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into the processor 110.

The embodiment of the application also provides a readable storage medium, on which a program or an instruction is stored, which when executed by a processor, implements each process of the above embodiment of the image display control method, and can achieve the same technical effects, so that repetition is avoided, and no further description is given here.

Wherein the processor is a processor in the electronic device described in the above embodiment. The readable storage medium includes computer readable storage medium such as computer readable memory ROM, random access memory RAM, magnetic or optical disk, etc.

The embodiment of the application further provides a chip, which comprises a processor and a communication interface, wherein the communication interface is coupled with the processor, and the processor is used for running programs or instructions to realize the processes of the embodiment of the image display control method, and can achieve the same technical effects, so that repetition is avoided, and the description is omitted here.

It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, chip systems, or system-on-chip chips, etc.

Embodiments of the present application provide a computer program product stored in a storage medium, which is executed by at least one processor to implement the respective processes of the above-described image display control method embodiments, and achieve the same technical effects, and are not described herein in detail for avoiding repetition.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art in the form of a computer software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal (which may be a mobile phone, a computer, a server, or a network device, etc.) to perform the method according to the embodiments of the present application.

The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are to be protected by the present application.

Claims

1. An image display control method, characterized in that the method comprises:

the control screen outputs signal pulses of a first signal according to a preset signal period, wherein the first signal is used for refreshing the screen;

and under the condition of generating a first image, controlling the screen to carry out screen refreshing according to the signal period of the first signal and the target refresh rate corresponding to the first image so as to display the first image.

2. The method of claim 1, wherein controlling the screen to refresh according to the signal period of the first signal and the target refresh rate corresponding to the first image comprises:

determining a target signal pulse of the first signal according to the target refresh rate and the signal period of the first signal;

and in the process of periodically outputting the first signal, when the output signal pulse is the target signal pulse, controlling the screen to refresh so as to display the first image.

3. The method of claim 2, wherein the determining the target signal pulse of the first signal based on the target refresh rate and the signal period of the first signal comprises:

Determining a signal pulse interval according to the target refresh rate and a first signal period of the first signal, wherein the signal pulse interval is a signal pulse interval between a first signal pulse and the target pulse signal; the first pulse signal is a signal pulse corresponding to the display of the previous frame of the first image;

and determining the target signal pulse according to the first signal pulse and the signal pulse interval.

4. The method according to claim 1, wherein the method further comprises:

and when the next first signal of the target signal pulse is output under the condition that the display delay exists in the first image, controlling the screen to display the first image.

5. A method according to any one of claims 1 to 3, wherein said controlling the screen for screen refresh comprises:

determining a target screen area in the screen according to the image information of the first image;

and controlling the screen to refresh the screen of the target screen area according to a preset scanning mode.

6. An electronic device, characterized in that the electronic device comprises a screen device and a display frame;

The screen device is used for sending signal pulses of a first signal according to a preset signal period, and the first signal is used for refreshing a screen;

the display frame is used for controlling the screen device to carry out screen refreshing according to the signal period of the first signal and the target refresh rate corresponding to the first image under the condition of generating the first image;

the screen device is used for refreshing a screen so as to display the first image.

7. The electronic device of claim 6, wherein the electronic device further comprises: a display drive;

the display frame is used for determining target signal pulses in the first signal according to the signal period of the first signal and the target refresh rate corresponding to the first image under the condition of generating the first image;

the display frame is used for sending the indication information of the target signal pulse to a display driver;

the display driver is configured to send image data of the first image to the screen device when a signal pulse output by the screen device is the target signal pulse;

the screen device is used for refreshing a screen under the condition that the image data sent by the display drive is received so as to display the first image.

8. An image display control apparatus, characterized in that the apparatus comprises: a control module, wherein:

the control module is used for controlling the screen to output signal pulses of a first signal according to a preset signal period, and the first signal is used for refreshing the screen;

and the control module is also used for controlling the screen to carry out screen refreshing according to the signal period of the first signal and the target refresh rate corresponding to the first image under the condition of generating the first image so as to display the first image.

9. The apparatus of claim 8, wherein the control module is configured to determine a target signal pulse for the first signal based in particular on the target refresh rate and a signal period of the first signal;

the control module is specifically configured to control the screen to refresh the screen when the output signal pulse is the target signal pulse in the process of periodically outputting the first signal, so as to display the first image.

10. The apparatus of claim 9, wherein the control module is configured to determine a signal pulse interval based on the target refresh rate and a first signal period of the first signal, the signal pulse interval being a signal pulse interval between a first signal pulse and the target pulse signal; the first pulse signal is a signal pulse corresponding to the display of the previous frame of the first image;

The control module is specifically configured to determine the target signal pulse according to the first signal pulse and the signal pulse interval.

11. The apparatus of claim 8, wherein the control module is further configured to control the screen to display the first image when outputting a next first signal of the target signal pulse in the event that there is a display delay for the first image.

12. The apparatus according to any one of claims 8 to 10, wherein the control module is configured to determine a target screen area in the screen based on image information of the first image;

the control module is specifically configured to control the screen to refresh the target screen area according to a preset scanning mode.

13. An electronic device comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the image display control method of any one of claims 1 to 5.

14. A readable storage medium, wherein a program or instructions is stored on the readable storage medium, which when executed by a processor, implements the steps of the image display control method according to any one of claims 1 to 5.