CN105117191A - Display control method and device for a mobile terminal - Google Patents

Abstract

The embodiment of the invention discloses a display control method and device of a mobile terminal. The method comprises the following steps: acquiring frame data corresponding to a display image in a preset time period; determining a target frame rate according to the variation trend between frame data corresponding to different display images; and controlling the display screen to refresh and display according to the target frame rate. By adopting the technical scheme, the frame rate can be dynamically adjusted according to the change trend of the frame data, the display screen is controlled to refresh and display images according to the adjusted frame rate, the system power consumption can be reduced while the phenomenon of blocking is avoided to the greatest extent, and the user experience is improved.

Description

Display control method and device for a mobile terminal

technical field

Embodiments of the present invention relate to the technical field of mobile terminals, and in particular, to a display control method and device for a mobile terminal.

Background technique

At present, the number of processor cores in mobile terminals is increasing, the size of display screens is increasing, and the functions that can be realized are also increasing. Mobile terminal users spend a lot of time using mobile terminals every day, so mobile Terminal display response speed and power consumption have become the most concerned issues of users.

Mobile terminal users generally like to use mobile terminals to browse web pages, check Weibo or WeChat, read novels, and play games. These usage behaviors usually last for a long time. When users operate mobile terminals, the screen display they see Content changes may come and go. Taking Weibo as an example, when the content displayed on the screen is the content that the user is interested in, the user will read it carefully, and the finger slides slowly on the touch screen, and the displayed content changes slowly; when the content displayed on the screen is the content that the user does not care about , the user will swipe quickly on the touch screen to skim this part of the content, so the displayed content changes quickly. While the screen display content seen by the user changes, the system is also constantly refreshing the display image. The refresh frequency can be called the frame rate. In the existing mobile terminal, the frame rate is written into the bottom layer of the system (driver layer) A fixed value in , usually around 60Hz (equivalent to displaying 60 frames of images in 1 second, that is, refreshing 60 times in 1 second), for the case where the display content changes slowly, the frame rate is relatively large, which will increase Necessary power consumption; for the case where the display content changes rapidly, the frame rate is small, which will cause stuttering and poor user experience. Therefore, the mobile terminal display control solution in the prior art cannot meet user requirements.

Contents of the invention

The purpose of the embodiments of the present invention is to provide a display control method and device for a mobile terminal, so as to solve the problem that the existing display control scheme for a mobile terminal cannot reduce system power consumption and avoid freezing phenomenon.

On the one hand, an embodiment of the present invention provides a display control method of a mobile terminal, including:

Obtain the frame data corresponding to the displayed image within the preset time period;

Determine the target frame rate according to the change trend between the frame data corresponding to different display images;

The display screen is controlled to perform refresh display according to the target frame rate.

On the other hand, an embodiment of the present invention provides a display control device for a mobile terminal, including:

A frame data acquisition module, configured to acquire frame data corresponding to a display image within a preset time period;

A target frame rate determination module, configured to determine the target frame rate according to the variation trend between frame data corresponding to different display images;

A display control module, configured to control the display screen to perform refresh display according to the target frame rate.

The display control scheme of the mobile terminal provided in the embodiment of the present invention obtains the frame data corresponding to the display image within a preset time period, determines the target frame rate according to the change trend between the frame data corresponding to different display images, and then determines the target frame rate according to the target frame Refresh the display on the rate control display. By adopting the above technical solution, the frame rate can be dynamically adjusted according to the changing trend of the frame data, and the display screen can be controlled to refresh the displayed image according to the adjusted frame rate, which can reduce system power consumption and improve user experience.

Description of drawings

FIG. 1 is a schematic flowchart of a display control method for a mobile terminal provided in Embodiment 1 of the present invention;

FIG. 2 is a schematic flowchart of a display control method of a mobile terminal provided by Embodiment 2 of the present invention;

FIG. 3 is a schematic flowchart of a preferred display control method of a mobile terminal provided by Embodiment 3 of the present invention;

FIG. 4 is a structural block diagram of a display control device for a mobile terminal provided by Embodiment 4 of the present invention.

detailed description

The technical solution of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.

Before discussing the exemplary embodiments in more detail, it should be mentioned that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although the flowcharts describe the steps as sequential processing, many of the steps may be performed in parallel, concurrently, or simultaneously. Additionally, the order of the various steps can be rearranged. The process may be terminated when its steps are complete, but may also have additional steps not included in the figure. The processing may correspond to a method, function, procedure, subroutine, subroutine, or the like.

Embodiment one

Fig. 1 is a schematic flowchart of a display control method of a mobile terminal provided by Embodiment 1 of the present invention, the method can be executed by a display control device of a mobile terminal, the device can be implemented by software and/or hardware, and generally can be integrated in a mobile terminal middle. As shown in Figure 1, the method includes:

Step 101. Obtain frame data corresponding to a display image within a preset time period.

In this embodiment, the mobile terminal may specifically be a terminal such as a smart phone, a tablet computer, and a notebook computer provided with a display screen. The method of this embodiment can be applied to the display control when the mobile terminal is in various working states. For example, when the user uses the mobile terminal to browse the web, check Weibo or WeChat, read novels, play games, and watch videos, etc., this method can be used. The method of the embodiment performs display control.

Exemplarily, the preset time period can be set by default by the system, or can be set by the user according to actual needs. The preset time period can be set continuously or at intervals. For example, the duration of the preset time period can be set to 0.5s (seconds). When the preset time period is set continuously, the frame data corresponding to the displayed image within each 0.5s can be obtained, which is equivalent to starting from 0s, respectively Obtain the frame data corresponding to the displayed image in the time period of 0-0.5s, 0.5s-1s and 1s-1.5s; when the preset time period is set at intervals, it can obtain the frame corresponding to the displayed image within 0.5s separated by a certain period of time For the data, assuming that the above-mentioned certain duration is 1s, it can be equivalent to starting from 0s, respectively acquiring the frame data corresponding to the display image in the time periods of 0-0.5s, 1.5s-2s, and 3s-3.5s.

Exemplarily, the frame data may specifically be data content corresponding to a complete frame display image. The display screen needs to display multiple frames of display images within 1 second, and the number of frames corresponding to the multiple frames of display images is the frame rate. For example, if the frame rate is 60Hz, it is equivalent to displaying 60 frames of images within 1 second, that is, the display screen is refreshed and displayed 60 times within 1 second. When acquiring the frame data corresponding to the displayed images within the preset time period, the frame data corresponding to all the displayed images within the preset time period may be acquired, or the frame data corresponding to part of the displayed images within the preset time period may be acquired.

Step 102: Determine a target frame rate according to a variation trend among frame data corresponding to different display images.

Exemplarily, multiple candidate frame rates may be preset, and correspondences between different change trends and candidate frame rates may be established, which may be set by default by the system or by the user as required. For example, if the candidate frame rate is preset to 40Hz and 120Hz, when the change trend between the frame data corresponding to different display images is relatively fast, the corresponding candidate frame rate is 120Hz; when the frame data corresponding to different display images When the change trend between is slow, the corresponding candidate frame rate is 40Hz. As for the standard for measuring the change trend, those skilled in the art can design according to the actual application situation, and no specific limitation is made here.

Step 103: Control the display screen to perform refresh display according to the target frame rate.

Exemplarily, after the target frame rate is determined, the display screen is controlled to perform refresh display according to the target frame rate. For example, when the target frame rate is 120Hz, the display screen is controlled to refresh the display image at 120Hz, that is, refreshes 120 times within 1 second. In the next time, the target frame rate of the next preset time period can be determined continuously according to the above steps. When the target frame rate of the next preset time period is different from the current frame rate, it will be adjusted to follow the next preset The target frame rate of the time period is refreshed and displayed to achieve the purpose of dynamically adjusting the frame rate.

The display control method of the mobile terminal provided by Embodiment 1 of the present invention obtains the frame data corresponding to the display image within a preset time period, determines the target frame rate according to the change trend between the frame data corresponding to different display images, and then determines the target frame rate according to the target frame Refresh the display on the rate control display. By adopting the above technical solution, the frame rate can be dynamically adjusted according to the change trend of the frame data, and the display screen can be controlled to refresh the display image according to the adjusted frame rate, which can minimize system power consumption while avoiding the phenomenon of freezing.

On the basis of the above-mentioned embodiments, preferably, the data corresponding to the display image in the frame buffer (framebuffer) is recorded in the form of an array, the data is recorded as the frame data in the form of an array, and the data corresponding to the display image within a preset time period is obtained. The frame data in the form of an array. The advantage of this is that in current mobile terminals, the data corresponding to the display image is usually directly transmitted from the upper layer of the system (application layer) to the bottom layer of the system (driver layer), and is only cached in the framebuffer, and will not be recorded. In this embodiment, the data is recorded in the form of an array, and the data is recorded as frame data in the form of an array, which can facilitate comparison of different frame data, thereby quickly obtaining the change trend of the frame data.

On the basis of the above-mentioned embodiments, obtaining the frame data corresponding to the displayed image within the preset time period may include: when it is detected that the displayed image only contains text, obtaining the frame data corresponding to the displayed image within the preset time period contains The American Standard Code for Information Interchange (ASCII) data of the text; determine the target frame rate according to the change trend between the frame data corresponding to different display images, which may include: according to the text ASCII code data corresponding to different display images The trend of change determines the target frame rate. The advantage of this is that when the displayed image only contains text, the target frame rate can be determined according to the change trend of the ASCII code data corresponding to the text, which can reduce the amount of calculation and improve the efficiency of dynamically adjusting the frame rate.

Embodiment two

Fig. 2 is a schematic flowchart of a display control method of a mobile terminal provided by Embodiment 2 of the present invention. This embodiment is optimized on the basis of the above-mentioned embodiment. The frame data corresponding to the image" and "determine the target frame rate according to the change trend between the frame data corresponding to different display images" are respectively optimized as: "obtain the frame data corresponding to the display image with the preset serial number within the preset time period" and "Calculate the difference degree of the frame data corresponding to every two display images closest to the sequence number; determine the target frame rate according to the difference degree".

Correspondingly, the method of this embodiment includes the following steps:

Step 201. Obtain frame data corresponding to a display image with a preset serial number within a preset time period.

Exemplarily, assuming that the duration of the preset time period is set to 1s, the preset time period is set continuously, and the current frame rate is 60Hz, then 1s contains 60 frames of display images, and the corresponding sequence numbers are 1 to 60. Assuming that starting from 0s, 0s-1s is the first time period, and the serial numbers of the displayed images can be recorded as 1-1, 1-2, 1-3...1-60 in sequence; 1s-2s is the second time period, where The sequence numbers of the displayed images can be recorded as 2-1, 2-2, 2-3...2-60 in turn; the sequence numbers of the following time periods can be deduced by analogy. In this step, the frame data corresponding to the display image with the preset serial number within the preset time period can be obtained, and the value N of the number of display images can be adjusted according to the actual situation. Wherein, the preset serial numbers may be continuous serial numbers or interval serial numbers. Taking the first time period as an example, N=6, which can be 6 consecutive display images, such as 1-1, 1-2, 1-3, 1-4, 1-5 and 1-6; it can also be an interval 6 display images, such as 1-1, 1-3, 1-5, 1-7, 1-9 and 1-11; also can be the first 3 and the last 3, such as 1-1, 1-2 , 1-3, 1-58, 1-59 and 1-60; 6 can also be set randomly.

Step 202. Calculate the degree of difference between the frame data corresponding to every two displayed images with the closest sequence numbers.

Exemplarily, this step may include: comparing the previous frame data and the next frame data in the frame data corresponding to each two display images closest to the sequence number, and determining the difference data in the previous frame data according to the comparison result ; Calculate the proportion of the difference data in the previous frame data in the previous frame data, and record the proportion as the difference degree between the previous frame data and the next frame data.

As an example in step 201, when the displayed images corresponding to the acquired frame data are continuous, such as 1-1, 1-2, 1-3, 1-4, 1-5 and 1-6, then calculate 1- 1 and 1-2, 1-2 and 1-3, 1-3 and 1-4, 1-4 and 1-5, and 1-5 and 1-6 display the difference degree of frame data corresponding to the image; when the acquired The display image corresponding to the frame data is discontinuous, such as 1-1, 1-3, 1-5, 1-7, 1-9 and 1-11, then calculate 1-1 and 1-3, 1- 3 and 1-5, 1-5 and 1-7, 1-7 and 1-9, and 1-9 and 1-11 show the degree of difference of the frame data corresponding to the image. When calculating the difference between the frame data corresponding to the 1-1 and 1-2 display images, the frame data corresponding to the 1-1 display image is the previous frame data, and the frame data corresponding to the 1-2 display image is the next frame data, compare the two sets of frame data, record the different data in the previous frame data and the next frame data as the difference data in the previous frame data, and then calculate the difference data in the previous frame data The proportion of , and record this proportion as the difference between the previous frame data and the next frame data.

Step 203, determine the target frame rate according to the degree of difference.

Exemplarily, this step may include: judging the magnitude relationship between the difference degree and a preset difference degree threshold, and determining the target frame rate according to the judgment result, the frame rate level corresponding to the current frame rate, and the candidate frame rate level list.

Exemplarily, a list of preset candidate frame rate levels may be preset. For example, three levels may be set in the candidate frame rate level list, the candidate frame rate corresponding to the first level is 30 Hz; the candidate frame rate corresponding to the second level is 60 Hz; the candidate frame rate corresponding to the third level is 120 Hz. Wherein, the number of levels in the list of candidate frame rate levels and the value of the candidate frame rates corresponding to each level can be adjusted according to actual conditions, and are not specifically limited here.

Exemplarily, in step 202, the degree of difference between the frame data corresponding to the two display images closest to the sequence number is calculated respectively, and a plurality of difference degree values are obtained, and these difference degree values are compared with a preset difference degree threshold. Wherein, the preset difference degree threshold can be adjusted according to actual conditions, and is not specifically limited here. For example, the preset difference degree threshold is set to 50%, and the calculated difference degree values are 51%, 53%, 56%, 59% and 60%, respectively, all of which exceed the preset difference degree threshold, indicating that the displayed content changes rapidly , you need to increase the frame rate level. If the current frame rate is 30Hz (corresponding to the first level), the candidate frame rate corresponding to the second level can be determined as the target frame rate, that is, the target frame rate is 60Hz; if the current frame rate is 60Hz (corresponding to the second level), you can Determine the candidate frame rate corresponding to the third level as the target frame rate, that is, the target frame rate is 120Hz; if the current frame rate is 120Hz (corresponding to the third level), it is already the highest level, no adjustment is required, and the target frame rate is 120Hz. Similarly, when the calculated difference values are all less than 50%, the candidate frame rate corresponding to a grade lower than the current frame rate may be used as the target frame rate. Exemplarily, if most of the difference degree values exceed the preset difference degree threshold and individual difference degree values do not exceed the preset difference degree threshold, the final judgment result may be determined based on the majority. For the case where the displayed images corresponding to the obtained frame data are the first three and the last three, the corresponding difference degree values can also be treated differently. For example, the first judgment result can be determined according to the first two difference degree values, and the last two The value of the degree of difference determines the second judgment result, and the final judgment result is determined by comprehensively considering the two intermediate judgment results according to preset rules. For example, when the first judgment result and the second judgment result are the same, the final judgment result can be determined directly; when the first current difference degree interval is different from the second current difference degree interval, the second judgment result can be determined as the final judgment result. judgment result.

Further, the preset difference degree threshold can be set to be multiple. For example, the first difference degree threshold is 50%, and the second difference degree threshold is 30%. When the calculated difference value is greater than 50%, the frame rate level can be increased by one level; when the calculated difference value is greater than 30% and less than 50%, the frame rate level can not be adjusted; when the calculated When the difference value is less than 30%, the frame rate level can be lowered by one level.

Step 204: Control the display screen to perform refresh display according to the target frame rate.

Embodiment 2 of the present invention further optimizes the process of determining the target frame rate on the basis of Embodiment 1. First, obtain the frame data corresponding to the display image with the preset serial number within the preset time period, and calculate every two closest The difference degree of the frame data corresponding to the display image of the serial number, and finally determine the target frame rate according to the difference degree, which can improve the accuracy of determining the target frame rate.

Embodiment three

FIG. 3 is a schematic flowchart of a preferred display control method of a mobile terminal provided by Embodiment 3 of the present invention. In this method, a smart phone is taken as an example for description. As shown in Figure 3, the method includes:

Step 301. Detect whether the mobile phone is in a scene where the function of dynamically updating the frame rate is applicable, and if so, perform step 302; otherwise, continue to perform this step.

Exemplarily, this step can be implemented at the application layer of the mobile phone. The applicable scenarios of the function of dynamically updating the frame rate can be set by default by the system, or can be set by the user. For example, the user uses a mobile phone to browse the web, view Weibo or WeChat, read novels, play games, and watch videos, etc., can be set as the applicable scenarios for the dynamic update frame rate function.

Step 302: Record the data corresponding to the display image in the frame buffer in the form of an array, and record the data as frame data.

Exemplarily, this step can be implemented in the driver layer of the mobile phone. The data recorded in this step can be recorded as frame data in the form of an array, which is referred to as frame data for convenience of description. The frame data may include binary data corresponding to each pixel in the display image, and the data format may be in RGB format; when the display image contains text, it may also include ASCII code data corresponding to the text.

Step 303 , check whether the displayed image only contains text, if yes, execute step 304 ; otherwise, execute step 306 .

Exemplarily, this step can be implemented at the application layer of the mobile phone. For example, when a user uses e-book application software to read novels or use office software to view documents, the application layer can determine that the displayed image contains only text, and can notify the driver layer to directly determine the target frame according to the change trend of the ASCII code data corresponding to the text rate, reducing the amount of computation.

Step 304 , acquiring the character ASCII code data contained in the corresponding frame data of the display image with the preset serial number within 0.5 seconds before the current moment.

Exemplarily, this step can be implemented in the driver layer of the mobile phone. Preferably, in this step, the character ASCII code data corresponding to the first 5 frames of display images and the last 5 frames of display images in 0.5s can be acquired.

Step 305 , calculate the degree of difference between the text ASCII code data corresponding to the two display images closest to the sequence number, and execute step 308 .

Exemplarily, this step can be implemented in the driver layer of the mobile phone. For the specific calculation process, please refer to the description part in step 202 of the second embodiment.

Step 306, acquiring the frame data corresponding to the display image with the preset sequence number within 0.5s before the current moment.

Exemplarily, this step can be implemented in the driver layer of the mobile phone. Preferably, in this step, the frame data corresponding to the first 5 frames of display images and the last 5 frames of display images in 0.5s may be acquired.

Step 307 , calculating the degree of difference between the frame data corresponding to every two display images closest to the sequence number.

Exemplarily, this step can be implemented in the driver layer of the mobile phone. For the specific calculation process, please refer to the description part in step 202 of the second embodiment.

Step 308, determine the target frame rate according to the degree of difference.

Exemplarily, this step can be implemented in the driver layer of the mobile phone. For ease of illustration, the candidate frame rates may be set to 40Hz and 120Hz. When the difference value calculated based on the text ASCII code data or frame data corresponding to the first 5 frames of display images is greater than 50%, and the difference value calculated based on the text ASCII code data or frame data corresponding to the next 5 frames of display images is also greater than When it is 50%, it means that the gap between the first 5 frames and the last 5 frames within the 0.5s is large, and the user is quickly browsing the displayed content. If the current frame rate is 40Hz, the target frame rate can be determined to be 120Hz, so as to avoid the phenomenon of stuttering; When the difference degree value calculated based on the text ASCII code data or frame data corresponding to the first 5 frames of display images is less than 50%, and the difference degree value calculated based on the text ASCII code data or frame data corresponding to the last 5 frames of display images is also less than When it is 50%, it means that the gap between the first 5 frames and the last 5 frames within 0.5s is small, and the user is browsing the display content slowly. If the current frame rate is 120Hz, the target frame rate can be determined to be 40Hz, so as to achieve the goal of reducing power consumption. Purpose. In addition, if the gap between the first 5 frames is large and the gap between the next 5 frames is small, or if the gap between the first 5 frames is small and the gap between the last 5 frames is large, you can not adjust the frame rate temporarily, and continue to determine the target frame rate within the next 0.5s.

Step 309: Control the display screen to perform refresh display according to the target frame rate.

Exemplarily, this step can be implemented in the driver layer of the mobile phone. Specifically, it can be set by the devicedriver register of the display system, for example, the target frame rate can be written into the register.

Embodiment 3 of the present invention is optimized on the basis of the above-mentioned embodiments. First, it is judged at the application layer whether the display image only contains text, and if so, the driver layer can be notified to directly determine the target frame according to the change trend of the ASCII code data corresponding to the text. rate to reduce the amount of calculation; if not, determine the target frame rate according to the change trend of the entire frame data.

Embodiment four

Fig. 4 is a structural block diagram of a display control device for a mobile terminal provided in Embodiment 4 of the present invention. The device can be realized by software and/or hardware, and is generally integrated in a mobile terminal, and can be controlled by executing a display control method of a mobile terminal. The display of the mobile terminal. As shown in FIG. 4 , the device includes a frame data acquisition module 401 , a target frame rate determination module 402 and a display control module 403 .

Among them, the frame data acquisition module 401 is used to obtain the frame data corresponding to the display image within a preset time period; the target frame rate determination module 402 is used to determine the target frame rate according to the trend of change between the frame data corresponding to different display images ; The display control module 403 is configured to control the display screen to perform refresh display according to the target frame rate.

On the basis of the above embodiments, the frame data acquisition module may be specifically configured to: acquire frame data corresponding to a display image with a preset serial number within a preset time period. The target frame rate determination module may include a difference calculation unit and a target frame rate determination unit. Wherein, the difference degree calculation unit is used to calculate the difference degree of the frame data corresponding to every two display images closest to the sequence number; the target frame rate determination unit is used to determine the target frame rate according to the difference degree.

On the basis of the above embodiments, the difference degree calculation unit may include a difference data determination subunit and a difference degree calculation subunit. Wherein, the difference data determination subunit is used to compare the previous frame data and the next frame data in the frame data corresponding to the display images closest to the serial numbers, and determine the difference in the previous frame data according to the comparison result. The difference data; the difference calculation subunit is used to calculate the proportion of the difference data in the previous frame data in the previous frame data, and record the proportion as the previous frame data and The difference degree of the next frame data.

On the basis of the above embodiments, the target frame rate determination unit may be specifically configured to: judge the magnitude relationship between the difference degree and the preset difference degree threshold, and according to the judgment result, the frame rate level corresponding to the current frame rate, and the candidate frame The list of rate classes determines the target frame rate.

On the basis of the above embodiments, the frame data acquisition module may include a recording unit and an array form data frame acquisition unit. Among them, the recording unit is used to record the data corresponding to the display image in the frame buffer in the form of an array, and record the data as the frame data in the form of an array; the data frame acquisition unit in the form of an array is used to acquire the display image in a preset time period The corresponding array form frame data.

On the basis of the above-described embodiments, the frame data acquisition module can be specifically used for: a text ASCII code data acquisition unit, used to obtain the corresponding frame in the display image within a preset time period when it is detected that only text is included in the display image The text ASCII code data contained in the data; the target frame rate determination module can be specifically used to: determine the target frame rate according to the change trend between the text ASCII code data corresponding to different display images.

The above-mentioned product can execute the method provided by any embodiment of the present invention, and has corresponding functional modules and beneficial effects for executing the method. For technical details not exhaustively described in this embodiment, reference may be made to the method provided in any embodiment of the present invention.

Note that the above are only preferred embodiments of the present invention and applied technical principles. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and can also include more other equivalent embodiments without departing from the concept of the present invention, and the present invention The scope is determined by the scope of the appended claims.

Claims (12)

1. a display control method for mobile terminal, is characterized in that, comprising:

Obtain the frame data that in preset time period, display image is corresponding;

According to the variation tendency determination target frame rate between the frame data that different display images is corresponding;

Control display screen according to described target frame rate and carry out refreshing display.

2. method according to claim 1, is characterized in that, the frame data that in described acquisition preset time period, display image is corresponding, comprising:

Obtain the frame data that the display image of default sequence number in preset time period is corresponding;

Variation tendency determination target frame rate between the described frame data corresponding according to different display images, comprising:

Calculate every two diversity factoies closest to frame data corresponding to the display image of sequence number;

According to described diversity factor determination target frame rate.

3. method according to claim 2, is characterized in that, described calculating every two closest to the diversity factor of frame data corresponding to the display image of sequence number, comprising:

Every two are compared closest to the former frame data in frame data corresponding to the display image of sequence number and rear frame data, and determines the variance data in described former frame data according to comparative result;

Calculate the proportion of variance data in described former frame data in described former frame data, and described ratio is designated as the diversity factor of described former frame data and described rear frame data.

4. method according to claim 2, is characterized in that, described according to described diversity factor determination target frame rate, comprising:

Judge the magnitude relationship of described diversity factor and default diversity factor threshold value, and according to frame per second grade corresponding to judged result, current frame rate and candidate's frame per second rank list determination target frame rate.

5. method according to claim 1, is characterized in that, the frame data that in described acquisition preset time period, display image is corresponding, comprising:

With the data that the display image in array form record frame buffer zone is corresponding, described data are designated as array form frame data;

Obtain the array form frame data that in preset time period, display image is corresponding.

6. method according to claim 1, is characterized in that, the frame data that in described acquisition preset time period, display image is corresponding, comprising:

When detect only comprise word in display image time, obtain the word ASCII character data comprised in frame data corresponding in display image in preset time period;

Variation tendency determination target frame rate between the described frame data corresponding according to different display images, comprising:

According to the variation tendency determination target frame rate between the word ASCII character data that different display images is corresponding.

7. a display control unit for mobile terminal, is characterized in that, comprising:

Frame data acquisition module, shows frame data corresponding to image for obtaining in preset time period;

Target frame rate determination module, for the variation tendency determination target frame rate between the frame data that the display image according to different is corresponding;

Display control module, carries out refreshing display for controlling display screen according to described target frame rate.

8. device according to claim 7, is characterized in that,

Described frame data acquisition module, specifically for:

Obtain the frame data that the display image of default sequence number in preset time period is corresponding;

Described target frame rate determination module comprises:

Diversity factor computing unit, for calculating every two diversity factoies closest to frame data corresponding to the display image of sequence number;

Target frame rate determining unit, for according to described diversity factor determination target frame rate.

9. device according to claim 8, is characterized in that, described diversity factor computing unit comprises:

Variance data determination subelement, for comparing closest to the former frame data in frame data corresponding to the display image of sequence number and rear frame data every two, and determines the variance data in described former frame data according to comparative result;

Diversity factor computation subunit, for calculating the proportion of variance data in described former frame data in described former frame data, and is designated as the diversity factor of described former frame data and described rear frame data by described ratio.

10. device according to claim 8, is characterized in that, described target frame rate determining unit, specifically for:

Judge the magnitude relationship of described diversity factor and default diversity factor threshold value, and according to frame per second grade corresponding to judged result, current frame rate and candidate's frame per second rank list determination target frame rate.

11. devices according to claim 7, is characterized in that, described frame data acquisition module comprises:

Described data, for data corresponding to the display image in array form record frame buffer zone, are designated as array form frame data by record cell;

Array form Frame acquiring unit, shows array form frame data corresponding to image for obtaining in preset time period.

12. devices according to claim 7, is characterized in that,

Described frame data acquisition module, specifically for:

Word ASCII character data capture unit, for when detect only comprise word in display image time, obtain the word ASCII character data comprised in frame data corresponding in display image in preset time period;

Described target frame rate determination module, specifically for:

According to the variation tendency determination target frame rate between the word ASCII character data that different display images is corresponding.