CN111880886A - Screen saver picture selection method and device and storage medium - Google Patents

Abstract

The present disclosure relates to a method and device for selecting a screen saver picture, and a storage medium, which are applied to electronic equipment including a display module. a cumulative brightness, to determine the first average cumulative brightness of the display area, wherein the display module includes N display areas, and the N is greater than 1; according to the nth first average cumulative brightness, determine the nth display area The first brightness level of the display area; wherein, the n is a positive integer less than or equal to the N; according to the N first brightness levels, select the corresponding screen saver picture to perform the screen saver of the display module, wherein , the area brightness of the screen saver picture displayed in the nth display area is negatively correlated with the first brightness level of the nth display area. Through the method, the occurrence of screen burn-in can be effectively reduced, and the loss of the display module can be reduced.

Description

Screen saver picture selection method and device, storage medium

technical field

The present disclosure relates to the technical field of electronic devices, and in particular, to a method and device for selecting a screen saver picture, and a storage medium.

Background technique

At present, electronic devices with display functions (such as smart phones) mostly use organic light-emitting diodes (Organic Light-Emitting Diode, OLED) to make display screens. The OLED screen has the advantages of self-illumination, clear and bright, light and thin, fast response speed, wide viewing angle and low power consumption, but the OLED screen is prone to burn-in phenomenon.

Burn-in means that when the monitor displays a still image for a long time, the image afterimage of an image will be permanently displayed, resulting in a permanent imprint. However, there is no better way to prevent screen burn-in.

SUMMARY OF THE INVENTION

The present disclosure provides a method and device for selecting a screen saver picture, and a storage medium.

According to a first aspect of the embodiments of the present disclosure, there is provided a method for selecting a screen saver image, which is applied to an electronic device including a display module, the method comprising:

Determine the first average cumulative brightness of the display area according to the first cumulative brightness of a single pixel in the display module within a preset time period, wherein the display module includes N display areas, and the N is greater than 1;

Determine the first brightness level of the nth display area according to the nth first average cumulative brightness; wherein, the n is a positive integer less than or equal to the N;

According to the N first brightness levels, the corresponding screen saver picture is selected to perform the screen saver of the display module, wherein the screen saver picture is displayed in the nth display area of the regional brightness, which is the same as that of the nth display area. The first brightness level of the display area is negatively correlated.

Optionally, the method further includes:

The first cumulative luminance of a single pixel is determined according to electrical signal values corresponding to different time periods of the single pixel within the preset time period.

Optionally, the method further includes:

According to the first average accumulated brightness of each of the display areas, M first brightness intervals are divided, where M is a positive integer greater than 1;

The determining the first brightness level of the n-th display area according to the n-th first average accumulated brightness includes:

comparing the nth first average cumulative brightness with the brightness in M first brightness intervals, to determine the first brightness interval in which the nth first average cumulative brightness is located;

The first brightness level of the nth display area is determined according to the first brightness interval in which the nth first average accumulated brightness is located.

Optionally, according to the N first brightness levels, selecting the corresponding screen saver picture to perform the screen saver of the display module, including:

According to the N first brightness levels and the second brightness levels of the plurality of first candidate pictures, the screen saver picture is selected from the plurality of first candidate pictures; wherein one of the first candidate pictures is selected. The selected picture includes N second brightness levels of N first image areas, and one of the first image areas corresponds to one of the display areas; the nth first image area of the screen saver picture The second brightness level is inversely related to the first brightness level.

Optionally, the method further includes:

determining the second average cumulative brightness of the nth first image region according to the second cumulative brightness of the pixels in the nth first image region of the first candidate picture;

The second brightness level of the nth first image area is determined according to the nth second average accumulated brightness.

Optionally, the method further includes:

According to the second average accumulated brightness of each of the first image regions, M second brightness intervals are divided, where M is a positive integer greater than 1;

The determining the second brightness level of the nth first image area according to the nth second average accumulated brightness includes:

comparing the nth second average cumulative brightness with the brightness in M second brightness intervals, to determine the second brightness interval in which the nth second average cumulative brightness is located;

The second brightness level of the nth first image area is determined according to the second brightness interval in which the nth second average accumulated brightness is located.

Optionally, selecting the screen saver picture from the plurality of first candidate pictures according to the N first brightness levels and the second brightness levels of the plurality of first candidate pictures, including:

obtaining the first level difference between the second brightness level of the nth first image area of the first candidate picture and the first brightness level of the nth display area;

calculating the sum of the N first level differences;

From a plurality of the first candidate pictures, the first candidate picture with the largest sum of the first level differences is selected as the screen saver picture.

Optionally, the method further includes:

According to the third cumulative luminance of sub-pixels of different colors of a single pixel in the n-th display area within the preset time period, determine the third sub-pixel belonging to the same color component in the n-th display area Average cumulative brightness;

determining that the color component with the largest third average accumulated brightness is the bias color of the nth display area;

According to the N first brightness levels, selecting the corresponding screen saver picture to perform the screen saver of the display module, including:

According to the N bias colors and the N first brightness levels, select the corresponding screen saver picture to perform the screen saver of the display module;

Wherein, the display color of the screen saver picture in the nth display area is different from the bias color of the nth display area.

Optionally, according to the N biased colors and the N first brightness levels, selecting a corresponding screen saver picture to perform the screen saver of the display module, including:

If the biased color of the nth display area is blue, select the corresponding screen saver picture to perform the display module image selection according to the N first brightness levels and the biased color of the nth display area. screensaver;

Wherein, the display color of the screen saver picture in the nth display area is different from the blue color.

Optionally, according to the N first brightness levels, selecting the corresponding screen saver picture to perform the screen saver of the display module, including:

sending the N first brightness levels to the server;

receiving the screen saver pictures fed back by the server according to the N first brightness levels;

The screen saver of the display module is performed by using the screen saver picture.

Optionally, according to the N first brightness levels, selecting the corresponding screen saver picture to perform the screen saver of the display module, including:

sending the N first brightness levels and the N biased colors to the server;

receiving the screen saver pictures fed back by the server according to the N first brightness levels and the N biased colors;

The screen saver of the display module is performed by using the screen saver picture.

According to a second aspect of the embodiments of the present disclosure, a method for selecting a screen saver picture is provided, which is applied to a server including multiple second candidate pictures, and the method includes:

receiving N first brightness levels sent by an electronic device; wherein one of the first brightness levels corresponds to a display area of a display module of the electronic device, and the N is greater than 1;

According to the N first brightness levels, determine a screen saver picture from a plurality of the second candidate pictures;

Send the screen saver picture to the electronic device; wherein, the screen saver picture is displayed in the nth display area of the electronic device. The regional brightness of the display area is negatively correlated with the first brightness level, and the n is less than or a positive integer equal to the N.

Optionally, determining a screen saver picture from a plurality of the second candidate pictures according to the N first brightness levels, including:

According to the N first brightness levels and the third brightness levels of the plurality of second candidate pictures, the screen saver picture is determined from the plurality of second candidate pictures; wherein, one of the first The second candidate picture includes N third brightness levels of N second image areas, one of the second image areas corresponds to one of the display areas; the nth second image area of the screen saver picture The third brightness level is negatively correlated with the first brightness level.

Optionally, the method further includes:

determining the fourth average cumulative brightness of the nth second image region according to the fourth cumulative brightness of the pixels in the nth second image region of the second candidate picture;

The third brightness level of the nth second image area is determined according to the nth fourth average accumulated brightness.

Optionally, the method further includes:

dividing M third brightness intervals according to the fourth average accumulated brightness of the second image area, where M is a positive integer greater than 1;

The determining the third brightness level of the nth second image area according to the nth fourth average accumulated brightness includes:

comparing the nth fourth average cumulative brightness with the brightness in the M third brightness intervals, to determine the nth third brightness interval in which the fourth average cumulative brightness is located;

The third brightness level of the nth second image area is determined according to a third brightness interval in which the nth fourth average accumulated brightness is located.

Optionally, the screen saver picture is determined from the plurality of second candidate pictures according to the N first brightness levels and the third brightness levels of the plurality of second candidate pictures, including: :

obtaining a second level difference between the third brightness level of the nth second image area of the second candidate picture and the first brightness level of the nth display area;

calculating the sum of the N second level differences;

From the plurality of second candidate pictures, the second candidate picture with the largest sum of the second level differences is determined as the screen saver picture.

Optionally, the method further includes:

receiving the N bias colors of the N display areas sent by the electronic device;

The determining of the screen saver picture from the plurality of second candidate pictures according to the N first brightness levels includes:

determining the screen saver picture from a plurality of the second candidate pictures according to the N first brightness levels and the N bias colors;

Wherein, the display color of the screen saver picture in the nth display area is different from the bias color of the nth display area.

Optionally, determining the screen saver picture from a plurality of the second candidate pictures according to the N first brightness levels and the N bias colors, including:

If the biased color of the nth display area is blue, it is determined from a plurality of the second candidate pictures according to the N first brightness levels and the biased color of the nth display area the screen saver picture;

Wherein, the display color of the screen saver picture in the nth display area is different from the blue color.

According to a third aspect of the embodiments of the present disclosure, there is provided an apparatus for selecting a screen saver image, which is applied to an electronic device including a display module, and the apparatus includes:

a first determining module, configured to determine the first average cumulative brightness of the display area according to the first cumulative brightness of a single pixel in the display module within a preset time period, wherein the display module includes N display areas , the N is greater than 1;

a second determination module, configured to determine the first brightness level of the nth display area according to the nth first average accumulated brightness; wherein, the n is a positive integer less than or equal to the N;

The selection module is configured to select the corresponding screen saver picture to perform the screen saver of the display module according to the N first brightness levels, wherein the screen saver picture is displayed in the nth region brightness of the display area, which is the same as that of all the screen savers. The first brightness level of the nth display area is negatively correlated.

Optionally, the device further includes:

The third determination module is configured to determine the first cumulative luminance of the single pixel according to the electrical signal values corresponding to the single pixel in different time periods within the preset time period.

Optionally, the device further includes:

a first dividing module, configured to divide M first luminance intervals according to the first average cumulative luminance of each of the display areas, where M is a positive integer greater than 1;

The second determining module is specifically configured to compare the nth first average cumulative brightness with the brightness in the M first brightness intervals, and determine where the nth first average cumulative brightness is located. A first brightness interval; the first brightness level of the nth display area is determined according to the first brightness interval in which the nth first average accumulated brightness is located.

The selection module is specifically configured to select the screen saver picture from the plurality of first candidate pictures according to the N first brightness levels and the second brightness levels of the plurality of first candidate pictures; wherein , a piece of the first candidate picture includes N second brightness levels of N first image regions, and one of the first image regions corresponds to one of the display regions; The second brightness level of the first image area is negatively correlated with the first brightness level.

Optionally, the device further includes:

a fourth determination module, configured to determine the second average cumulative brightness of the nth first image area according to the second cumulative brightness of the pixels in the nth first image area of the first candidate picture; The n second average accumulated luminances determine the second luminance level of the nth first image area.

Optionally, the device further includes:

a second dividing module, configured to divide M second luminance intervals according to the second average cumulative luminance of each of the first image regions;

The second determining module is specifically configured to compare the nth second average cumulative brightness with the brightness in the M second brightness intervals, and determine the location where the nth second average cumulative brightness is located. second brightness interval; determining the second brightness level of the nth first image area according to the second brightness interval in which the nth second average accumulated brightness is located.

Optionally, the selection module is specifically configured to obtain the distance between the second brightness level of the nth first image area of the first candidate picture and the first brightness level of the nth display area. Calculate the sum of N first level differences; from a plurality of first candidate pictures, select the first candidate picture with the largest sum of the first level differences as the screen saver picture.

Optionally, the device further includes:

A fifth determination module, configured to determine the same color in the nth display area according to the third cumulative brightness of the different color sub-pixels of the single pixel in the nth display area within the preset time period the third average cumulative brightness of the sub-pixels of the component; determining that the color component with the largest third average cumulative brightness is the biased color of the nth display area;

The second determination module is specifically configured to select a corresponding screen saver picture to perform the screen saver of the display module according to the N bias colors and the N first brightness levels; wherein, the screen saver picture is in the nth screen saver. The display color of the nth display area is different from the bias color of the nth display area.

Optionally, the second determination module is specifically configured to, if the bias color of the n-th display area is blue, according to the bias of the N-th first brightness level and the n-th display area. Color, select the corresponding screen saver picture to perform the screen saver of the display module; wherein, the display color of the screen saver picture in the nth display area is different from the blue color.

Optionally, the selection module includes:

a first sending module, configured to send the N first brightness levels to the server;

The first receiving module is configured to receive the screen saver pictures fed back by the server according to the N first brightness levels; and use the screen saver pictures to perform the screen saver of the display module.

Optionally, the first sending module is specifically configured to send the N first brightness levels and the N biased colors to the server;

The first receiving module is specifically configured to receive the screen saver pictures fed back by the server according to the N first brightness levels and the N bias colors; and use the screen saver pictures to perform the screen saver of the display module .

According to a fourth aspect of the embodiments of the present disclosure, there is provided an apparatus for selecting a screen saver image, which is applied to a server including a plurality of second candidate images, and the apparatus includes:

The second receiving module is configured to receive N first brightness levels sent by the electronic device; wherein one of the first brightness levels corresponds to a display area of the display module of the electronic device, and the N is greater than 1;

a sixth determining module, configured to determine a screen saver picture from a plurality of the second candidate pictures according to the N first brightness levels;

The second sending module is configured to send the screen saver picture to the electronic device; wherein the screen saver picture is displayed in the nth display area of the electronic device. The regional brightness is negative with the first brightness level Relatedly, the n is a positive integer less than or equal to the N.

Optionally, the sixth determining module is specifically configured to, according to the N first brightness levels and the third brightness levels of the plurality of second candidate pictures, select from the plurality of second candidate pictures. Determine the screen saver picture in ; wherein, one of the second candidate pictures includes N third brightness levels of N second image regions, and one of the second image regions corresponds to one of the display regions; The third brightness level of the nth second image area of the screen saver picture is negatively correlated with the first brightness level.

Optionally, the device further includes:

A seventh determination module, configured to determine the fourth average cumulative brightness of the nth second image region according to the fourth cumulative brightness of the pixels in the nth second image region of the second candidate picture; The third brightness level of the nth second image area is determined according to the nth fourth average accumulated brightness.

Optionally, the device further includes:

a third dividing module, configured to divide M third luminance intervals according to the fourth average accumulated luminance of the second image area, where M is a positive integer greater than 1;

The seventh determination module is specifically configured to compare the nth fourth average cumulative brightness with the brightness in the M third brightness intervals, and determine the location where the nth fourth average cumulative brightness is located. a third brightness interval; determining the third brightness level of the nth second image area according to the third brightness interval in which the nth fourth average accumulated brightness is located.

Optionally, the sixth determination module is specifically configured to acquire the third brightness level of the nth second image area of the second candidate picture and the first brightness level of the nth display area. The second level difference between the two; calculate the sum of the N second level differences; from a plurality of the second candidate pictures, take the second candidate picture with the largest sum of the second level differences Determine the picture for the screensaver.

Optionally, the device further includes:

a third receiving module, configured to receive the N biased colors of the N display areas sent by the electronic device;

The sixth determination module is specifically configured to determine the screen saver picture from a plurality of the second candidate pictures according to the N first brightness levels and the N bias colors; wherein, the screen saver picture The display color in the nth display area is different from the bias color in the nth display area.

Optionally, the sixth determining module is specifically configured to, if the bias color of the n-th display area is blue, according to the bias of the N-th first brightness level and the n-th display area. Color, the screen saver picture is determined from a plurality of the second candidate pictures; wherein, the display color of the screen saver picture in the nth display area is different from the blue color.

According to a fifth aspect of the embodiments of the present disclosure, a device for selecting a screen saver picture is provided, including:

processor;

memory for storing processor-executable instructions;

Wherein, the processor is configured to execute the method for selecting a screen saver picture as described in the first aspect or the second aspect.

According to a sixth aspect of the embodiments of the present disclosure, there is provided a storage medium, comprising:

When the instructions in the storage medium are executed by the processor of the device for selecting a screen saver image, the device for selecting a screen saver image can execute the method for selecting a screen saver image as described in the first aspect or the second aspect.

The technical solutions provided by the embodiments of the present disclosure may include the following beneficial effects:

In the embodiment of the present disclosure, the electronic device calculates the display module by region, obtains the first average cumulative brightness of each display region according to the first cumulative brightness of a single pixel in the display module within a preset time period, and determines The first brightness level for each display area. Therefore, the electronic device can select the corresponding screen saver picture to perform the screen saver of the display module according to the first brightness level of the plurality of display areas, wherein the screen saver picture is displayed in the area brightness of the nth display area, which is different from the brightness of the nth display area. The first brightness level is negatively correlated. On the one hand, the present disclosure directly selects a picture whose display brightness is negatively correlated with the first brightness level of the display area as the screen saver picture, and the judgment basis is simple and direct; on the other hand, the present disclosure divides the display module into N display areas for calculation, and counts each The first brightness level of the display area is used to select the screen saver picture, which can improve the refinement of the screen saver picture selection compared to the method of using the display module as a whole to count the brightness levels to determine the screen saver picture.

It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure.

Description of drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description serve to explain the principles of the disclosure.

FIG. 1 is an example diagram 1 of a TV burn-in.

FIG. 2 is a second example of a TV burn-in.

FIG. 3 is a flowchart 1 of a method for selecting a screen saver picture according to an embodiment of the present disclosure.

FIG. 4 is an example diagram 1 of a screen saver picture in an embodiment of the disclosure.

FIG. 5 is a second example of a screen saver picture according to an embodiment of the disclosure.

FIG. 6 is a second flowchart of a method for selecting a screen saver picture according to an embodiment of the present disclosure.

FIG. 7 is an interactive flowchart of a method for selecting a screen saver picture according to an embodiment of the present disclosure.

FIG. 8 is a diagram showing an example of a method for selecting a screen saver picture according to an embodiment of the present disclosure.

FIG. 9 is a diagram 1 of an apparatus for selecting a screen saver picture according to an exemplary embodiment.

FIG. 10 is a second diagram of an apparatus for selecting a screen saver picture according to an exemplary embodiment.

Fig. 11 is a block diagram of an electronic device according to an exemplary embodiment.

Fig. 12 is a block diagram of a server device according to an exemplary embodiment.

Detailed ways

Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. Where the following description refers to the drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the illustrative examples below are not intended to represent all implementations consistent with this disclosure. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present disclosure as recited in the appended claims.

FIG. 1 is an example diagram 1 of a TV screen burn-in, and FIG. 2 is an example diagram 2 of a TV screen burn-in. As shown in Figure 1 and Figure 2, there is image residue on the TV screen, which will affect the display effect of the image. In order to improve the occurrence of the screen burn-in phenomenon of the display module, an embodiment of the present disclosure provides a method for selecting a screen saver picture.

3 is a flowchart of a method for selecting a screen saver picture shown in an embodiment of the present disclosure. As shown in FIG. 3 , the method for selecting a screen saver picture applied to an electronic device includes the following steps:

S11. Determine the first average cumulative brightness of the display area according to the first cumulative brightness of a single pixel in the display module within a preset time period, wherein the display module includes N display areas, and N is greater than 1.

S12. Determine the first brightness level of the nth display area according to the nth first average accumulated brightness; wherein, the n is a positive integer less than or equal to the N.

S13. According to the N first brightness levels, select a corresponding screen saver picture to perform the screen saver of the display module, wherein the screen saver picture is displayed in the nth display area of the regional brightness, which is the same as the nth display area. The first brightness levels of the display areas are negatively correlated.

In the embodiment of the present disclosure, the electronic device includes: a television, a mobile phone, or a tablet computer, etc., which is not limited in the embodiment of the present disclosure.

The electronic device includes a display module (display screen). When an image is displayed on the display, one pixel of the image corresponds to a single pixel of the display module. The electronic device obtains the pixel value of each pixel of the image to be displayed in advance, and then passes A single pixel of the display module applies an electrical signal value (such as a current value or a voltage value) to display an image. One pixel of the display module may be a light-emitting unit, such as an OLED unit.

For a display device displaying grayscale images, the display module includes an OLED unit capable of displaying white light, and one OLED unit may include one OLED lamp. The display module displays a grayscale image by applying electrical signal values to the OLED unit capable of displaying white light.

For a display device displaying color images, a single pixel of the display module includes multiple sub-pixels, one sub-pixel may be an OLED lamp, and one OLED unit includes multiple OLED lamps. By applying different magnitudes of electrical signal values to each OLED lamp, based on the organic light-emitting material coated on the OLED lamp or under the action of color filters, the OLED lamp can emit light of various colors, so that the display module can display images in the display module. color information can be displayed. For example, in RGB color mode, OLED lights can emit red, green, or blue light; in RGBW color mode, OLED lights can emit red, green, blue, or white light.

In step S11, the first cumulative brightness of a single pixel of the display module within the preset time period refers to the first cumulative brightness of a single pixel within the preset time period when the display module displays an image. The images displayed within the preset time period may refer to the same image, or may refer to different images. In addition, the display module includes N display areas, and each display area includes at least one pixel.

In one embodiment, the method further includes:

The first cumulative luminance of a single pixel is determined according to electrical signal values corresponding to different time periods of the single pixel within the preset time period.

As mentioned above, when an electronic device displays an image, the image is displayed by applying an electrical signal value (eg, supplying a current value or a voltage value to a driving circuit) to a single pixel of the display module. In one embodiment, when the display module displays the same image within the preset time period, considering that the electrical signal value may fluctuate, the electrical signal values in different time periods within the preset time period may not be completely Consistent.

In another embodiment, when the display module displays different images within a preset period of time, and the pixel values of different images are different, therefore when the display module displays different images in different time periods, it is applied to a single The electrical signal values on the pixels are also different.

For a display device that displays grayscale images, the first cumulative brightness of a single pixel within a preset time period can be calculated by the following formula:

PoL=T1*L1+T2*L2+…+Tk*Lk (1)

Among them, Tk is the lighting duration of the pixel in the Tk time period; Lk is the current value of the corresponding Tk time period, and the unit can be milliamps or microamps; PoL is the first cumulative brightness of the 0th pixel in the display area , o is a positive integer greater than 0.

If the display area includes 0 pixels, based on the determined first cumulative brightness of a single pixel, the first average cumulative brightness of the display area can be calculated by the following formula:

AL=(P1L+P2L+…+PoL)/O (2)

For a display device that displays a color image, the first cumulative luminance of a single pixel within a preset time period refers to the cumulative luminance generated by sub-pixels included in the single pixel when they are displayed together within a preset time period. In this embodiment, the first cumulative luminance of a single pixel within a preset time period can be calculated by the following formula:

PoL=T1*(L11+L21+…+Lm1)/M+T2*(L12+L22+…+Lm2)/M+

…+Tk*(L1k+L2k+…+Lmk)/M (3)

Wherein, Tk is the lighting duration of the pixel in the Tk time period; Lmk is the current value of the mth sub-pixel in the corresponding Tk time period. If a pixel includes M sub-pixels, then (L1k+L2k+...+Lmk)/M is the current average value of the M sub-pixels included in a single pixel during the Tk period, and the unit may be milliamps or microamps. Among them, M is a positive integer greater than 0, and the value of m is a positive integer between 1 and M. For example, for a display module using RGB color mode, the size of M is 3.

For a display device displaying a color image, based on the first cumulative luminance PnL of a single pixel within a preset time period obtained by formula (3), the first average cumulative luminance of the display area can be obtained by formula (2).

In the embodiment of the present disclosure, for N display areas of the display module, N first average cumulative luminances can be obtained. In step S12, the first brightness level of the nth display area is determined according to the nth first average cumulative brightness among the N first average cumulative brightnesses. Then, for the N first average accumulated brightnesses corresponding to the N display areas, the N first brightness levels can be determined.

It can be understood that, in this embodiment, the first accumulated brightness is determined according to the electrical signal values corresponding to different time periods of a single pixel within the preset time period, that is, the first accumulated brightness is determined based on the data (electrical signal value) of the driving circuit. A cumulative brightness can improve the accuracy of obtaining the first cumulative brightness, so that the first average cumulative brightness of each display area and the first brightness level can be obtained more accurately.

It should be noted that, in the embodiment of the present disclosure, when the first brightness level of the display area is determined according to the first average accumulated brightness, in an embodiment, the ratio may be determined according to different brightness level intervals set in advance. The first brightness level of the display area is further determined according to the brightness level interval in which the first average accumulated brightness is located.

In another embodiment, the brightness level interval may also be temporarily divided according to the first average accumulated brightness, and the first brightness level of the display area may be determined according to the brightness level interval in which the first average accumulated brightness is located. Based on this embodiment, the method for selecting a screen saver picture also includes:

According to the first average accumulated brightness of each of the display areas, M first brightness intervals are divided, where M is a positive integer greater than 1;

Step S12 includes:

comparing the nth first average cumulative brightness with the brightness in M first brightness intervals, to determine the first brightness interval in which the nth first average cumulative brightness is located;

The first brightness level of the nth display area is determined according to the first brightness interval in which the nth first average accumulated brightness is located.

In this embodiment, M first brightness intervals are temporarily divided based on the first average accumulated brightness of the N display areas, and different first brightness intervals correspond to different first brightness levels. The number M of the first brightness intervals may be preset, and the larger M is, the more first brightness intervals that can be divided, and the more corresponding first brightness levels.

In one embodiment, the first average cumulative brightness of each display area may be added to obtain the first cumulative value of the N display areas; M first brightness intervals are divided according to the first cumulative value. Specifically, firstly, according to the first accumulated value and the number N of display areas, the average accumulated brightness of each display area is determined; then, according to the preset M and the average accumulated brightness, the corresponding first brightness intervals under different levels are respectively determined. For example, the first brightness interval corresponding to the first level is (0, average cumulative brightness], the first brightness interval corresponding to the second level is (average cumulative brightness, 2*average cumulative brightness], and the first brightness corresponding to the Mth level The interval is ((M-1)*Mean Cumulative Brightness, M*Mean Cumulative Brightness].

Exemplarily, if there are 3 display areas (N is equal to 3), the first average accumulated luminances are: 3, 1, and 5, respectively. Then the first accumulated value of the three display areas is 9. If the preset is to divide into three (M is equal to 3) first brightness intervals, the average cumulative brightness of each display area is 3. The brightness value range of the first brightness interval of the first level is (0, 3], the brightness value range of the first brightness interval of the second level is (3, 6], and the brightness of the first brightness interval of the third level. The value range is (6, 9].

For the first average cumulative brightness of the first display area, since 3 is in the first brightness interval of the first level, the first brightness level of the first display area is the first level. Similarly, the first brightness level of the display area where the first average cumulative brightness is 1 is also the first level; the first brightness level of the display area where the first average cumulative brightness is 5 is the second level.

In one embodiment, the first average accumulated luminances of the N display areas may be subtracted to divide the M first luminance intervals. For example, there are 2 (N equals 2) display areas, one display area is completely black (the first average cumulative brightness is 0), and one display area is completely white (the first average cumulative brightness is 255). Therefore, if the difference between the first average cumulative luminances of the N display areas is 255, it means that one display area is completely white and one display area is completely black. At this time, only 2 (M is equal to 2) can be divided The first brightness interval.

It can be understood that, in this embodiment, since the determination of the first brightness interval is temporarily divided based on the current first average cumulative brightness of each display area, the determination of the first brightness interval can balance the brightness consumption of each display area, It can more truly reflect the difference in brightness between display areas. Therefore, when the first brightness level of each display area is determined based on the first average accumulated brightness and each first brightness interval, the division of the first brightness level can be made more effective.

In addition, it should be noted that, in the embodiments of the present disclosure, the number N of display areas and the number of brightness intervals of the display module can be set as required. When N and/or M is larger, the selected screen saver picture may better protect the display module; when N and/or M are set relatively small, the computational complexity can be reduced. Therefore, the flexible adjustment based on N and M of the present disclosure can improve the intelligence of screen saver picture selection.

In step S13, based on the first brightness level of each display area, a screen saver picture negatively correlated with the first brightness level of the display area may be selected to perform the screen saver of the display module. Among them, the negative correlation means that when the first brightness level of the display area is larger, the brightness of the screen saver picture displayed in the display area is smaller; when the first brightness level of the display area is smaller, the screen saver picture is displayed in the display area. The greater the area brightness of the area.

It should be noted that the screen saver picture negatively correlated with the first brightness level of the display area includes: the regional brightness of the screen saver picture displayed in the N display areas is negatively correlated with the first brightness level of the N display areas; it also includes: The screen saver picture is displayed in the N display areas. The regional brightness of the partial display area is negatively correlated with the first brightness level of the partial display area.

In this embodiment, there is a situation that the screen saver picture is negatively correlated with the first brightness level of some display areas. The reason is that there may be a sub-optimal solution, that is, the brightness of the screen saver picture and the first brightness level of each display area cannot be satisfied. show a negative correlation. Of course, it may also be because the selection condition of the screen saver picture is negatively correlated with some of the first brightness levels in the N first brightness levels. For example, according to the highest first brightness level among the N first brightness levels, a candidate picture whose brightness is negatively correlated with the highest first brightness level is selected as the screen saver picture, wherein the screen saver picture is displayed at the highest first brightness level The regional brightness of the display area corresponding to the level is negatively correlated with the highest first brightness level.

In addition, it should be noted that, in the embodiment of the present disclosure, when the display module of the electronic device does not receive the display instruction of the picture within the preset time period, the execution of the screen saver picture determined in step S13 is triggered to be displayed by the display module. screensaver. And based on step S13, it is possible to select a plurality of pictures that meet the selection conditions of the screen saver pictures, and there may be a situation that the selection conditions of the screen saver pictures cannot be selected. When a picture that meets the selection conditions of the screen saver picture cannot be selected, the electronic device may randomly select a picture to screen save the display module.

In one embodiment, step S13 includes:

According to the N first brightness levels and the second brightness levels of the plurality of first candidate pictures, the screen saver picture is selected from the plurality of first candidate pictures; wherein one of the first candidate pictures is selected. The selected picture includes N second brightness levels of N first image areas, and one of the first image areas corresponds to one of the display areas; the nth first image area of the screen saver picture The second brightness level is inversely related to the first brightness level.

In this embodiment, the first candidate image may be an image saved in the electronic device, or may be an image in other electronic devices. When the first candidate picture comes from other electronic devices, the electronic device may obtain the second brightness level of the plurality of first candidate pictures from other electronic devices, and after determining the screen saver picture according to the first brightness level and the second brightness level , to receive the screensaver image from other electronic devices.

In the embodiment of the present disclosure, a first candidate picture is also divided into N first image areas, one first image area corresponds to one display area, and each first image area corresponds to one second brightness level. Therefore, according to the corresponding relationship between the regions, the first candidate picture whose second brightness level is negatively correlated with the first brightness level can be selected as the screen saver picture.

FIG. 4 is an example diagram 1 of a screen saver picture according to an embodiment of the disclosure. As shown in FIG. 4 , the number of screen partitions of the TV set is N=4, that is, the display module of the TV set includes 4 display areas. The TV picture displayed on the screen is divided into two levels, high and low, according to the average cumulative brightness of each display area, with two first brightness levels. As shown in FIG. 4 , the display area in the upper left corner has a relatively dark color and a relatively high first brightness level, while other display areas have a relatively light color and a consistent and relatively low first brightness level. As can be seen from FIG. 4 , the darker the display area, the greater the display brightness in the TV picture, and the lighter the display area, the lower the display brightness in the TV picture. In addition, it can also be seen that the screen saver picture is also divided into 4 first image areas with 2 different second brightness levels. The color of the first image area of the screen saver picture located in the upper left corner determined by reverse matching (ie, the negative correlation of the corresponding area) is relatively light, and its second brightness level is relatively low, while the color of the first image area located in the lower right corner is relatively light. Relatively dark, its second brightness level is relatively high. The darker the color of the first image area, the greater the display brightness of the screen saver image; the lighter the color of the first image area, the lower the display brightness of the screen saver image.

FIG. 5 is a second example of a screen saver picture in an embodiment of the disclosure. As shown in FIG. 5 , the number of screen partitions is N=144, that is, the display module includes 144 display areas. The TV picture displayed on the screen is divided into three grades of high, medium and low according to the average cumulative brightness of each display area, with three first brightness levels. The three first brightness levels are represented by different color depths, and the darker the color, the higher the first brightness level. It can be seen from Figure 5 that the darker the display area, the greater the display brightness in the TV picture. In addition, it can also be seen that the screen saver picture is also divided into 144 first image areas, with 3 different second brightness levels, which are also reflected by different color depths. The darker the color, the higher the second brightness level. , the darker the color of the first image area, the greater the display brightness of the screen saver picture. The second brightness level of the first image area of the screen saver picture determined by performing reverse matching (ie, the corresponding area is negatively correlated) is negatively correlated with the first brightness level of the partial display area.

It can be understood that, in this embodiment, when selecting the first candidate picture that is negatively correlated with the first brightness level of the display area as the screen saver picture, according to the second brightness level of the first candidate picture, according to the brightness level The negative correlation relationship is used to determine the screen saver picture, which makes the selection of the screen saver picture more direct, and can improve the selection efficiency of the screen saver picture.

It should be noted that, in the embodiment of the present disclosure, the negative correlation between the second brightness level and the first brightness level may be determined by the level difference between the second brightness level and the first brightness level.

In an embodiment, the selecting the screen saver picture from the plurality of first candidate pictures according to the N first brightness levels and the second brightness levels of the plurality of first candidate pictures includes:

obtaining the first level difference between the second brightness level of the nth first image area of the first candidate picture and the first brightness level of the nth display area;

calculating the sum of the N first level differences;

From a plurality of the first candidate pictures, the first candidate picture with the largest sum of the first level differences is selected as the screen saver picture.

In this embodiment, it should be noted that calculating the sum of N first level differences refers to taking absolute values of the first level differences and then adding and summing them.

Exemplarily, when selecting a candidate picture whose second brightness level is negatively correlated with the first brightness level, the first brightness level of the n-th display area may be correlated with the second brightness level of the n-th first image area. Subtract the obtained grade difference, and then add the absolute values of the N grade differences to obtain the accumulated value of the absolute value of the grade difference. How many first candidate pictures there are, how many accumulated values will be obtained, and finally a first candidate picture corresponding to the largest accumulated value is selected as the screen saver picture.

In this embodiment, the screen saver picture is determined by the sum of the level differences, so that the selection of the screen saver picture is more direct, and the selection efficiency of the screen saver picture can be improved.

In one embodiment, the method for selecting a screen saver picture further includes:

determining the second average cumulative brightness of the nth first image region according to the second cumulative brightness of the pixels in the nth first image region of the first candidate picture;

The second brightness level of the nth first image area is determined according to the nth second average accumulated brightness.

In this embodiment, the second average accumulated luminance of the first image area is obtained by the second accumulated luminance of the pixels in the first image area. Wherein, the second cumulative brightness of the pixels in the first image area can be calculated by the following formula:

PY=P1Y+P2Y+…+PjY (4)

Among them, PjY is the brightness of the jth pixel in the first image area, and j is a positive integer greater than 0; if a first image area includes J pixels, PY is a total of J pixels in the first image area of the second cumulative brightness.

It should be noted that, in the embodiment of the present disclosure, the brightness of the jth pixel in the first image area may be the brightness obtained in the YUV color mode. In the YUV color mode, "Y" represents the brightness, that is, the grayscale value, "U" represents the color, "V" represents the saturation of the color, and "U" and "V" together specify the color of the pixel. In the embodiment of the present disclosure, PjY is obtained by using the value of the "Y" component of the jth pixel in the first image area in the YUV color mode.

Based on the determined second cumulative brightness of the first image area, the second average cumulative brightness of the first image area can be calculated by the following formula:

BL=PY/J (5)

In this embodiment, for N first image regions of the first candidate picture, N second average accumulated luminances can be obtained. The first brightness level of the nth first image area is determined according to the nth second average cumulative brightness among the N second average cumulative brightnesses. Then, for the N second average accumulated brightnesses corresponding to the N first image regions, N second brightness levels can be determined.

In this embodiment of the present disclosure, when determining the second brightness level of the first candidate picture, N second average cumulative brightnesses of the N first image regions are also determined first, and then N second average cumulative brightnesses are determined based on the N second average cumulative brightnesses. A second brightness level, that is, a method similar to that used to determine the first brightness level of the display area.

It can be understood that the second brightness level is determined by adopting a method similar to that used to determine the first brightness level, that is, the independent variable (the first brightness level) and the dependent variable (the second brightness level) are unified in the process of determining the negative correlation relationship. The acquisition rules can improve the effectiveness of screen saver image selection.

In the embodiment of the present disclosure, when the second brightness level of the first image area is determined according to the second average accumulated brightness, in one embodiment, the first brightness level may be determined according to different brightness level intervals set in advance. The second brightness level for the image area.

In another embodiment, the brightness level interval may also be temporarily divided according to the second average accumulated brightness, and the second brightness level of the first image area may be determined according to the brightness level interval in which the second average accumulated brightness is located. . Based on this embodiment, the method for selecting a screen saver picture also includes:

According to the second average accumulated brightness of each of the first image regions, M second brightness intervals are divided, where M is a positive integer greater than 1;

The determining the second brightness level of the nth first image area according to the nth second average accumulated brightness includes:

comparing the nth second average cumulative brightness with the brightness in M second brightness intervals, to determine the second brightness interval in which the nth second average cumulative brightness is located;

The second brightness level of the nth first image area is determined according to the second brightness interval in which the nth second average accumulated brightness is located.

In this embodiment, M second brightness intervals are temporarily divided based on the second average accumulated brightness of the N first image regions, and different second brightness intervals correspond to different second brightness levels. The number M of the second brightness intervals is the same as the number M of the first brightness intervals.

It can be understood that, in this embodiment, on the one hand, the same number of second brightness intervals are divided in the same way as the first brightness interval division method, which improves the compatibility between the second brightness level and the first brightness level. Contrast. On the other hand, the second brightness interval is determined by comprehensively considering the second average accumulated brightness of all the first image areas, and the second brightness level is further determined, so that the second brightness level is based on the negative correlation relationship between the second brightness level and the first brightness level. After determining the screen saver picture, when the screen saver picture is used for the screen saver of the display module, the brightness consumption of each display area in each display module can be uniform.

In one embodiment, the method for selecting a screen saver picture further includes:

According to the third cumulative luminance of sub-pixels of different colors of a single pixel in the n-th display area within the preset time period, determine the third sub-pixel belonging to the same color component in the n-th display area Average cumulative brightness;

determining that the color component with the largest third average accumulated brightness is the bias color of the nth display area;

Step S13 includes:

According to the N bias colors and the N first brightness levels, select the corresponding screen saver picture to perform the screen saver of the display module;

Wherein, the display color of the screen saver picture in the nth display area is different from the bias color of the nth display area.

As mentioned above, for a display device displaying color images, a single pixel of the display module includes a plurality of sub-pixels, and each sub-pixel can emit light of different colors. In this embodiment, the third cumulative luminance of a certain color component sub-pixel of a single pixel in a display area within a preset duration can be calculated by the following formula:

PomL=T1*Lm1+T2*Lm2+…+Tk*Lmk (6)

Wherein, Tk is the lighting duration of the pixel in the Tk time period; Lmk is the current value of the mth sub-pixel in the corresponding Tk time period, the unit may be milliampere, microampere, and m is a positive integer greater than 0. PomL is the third cumulative luminance of the m-th sub-pixel of the o-th pixel in the display area, and o is a positive integer greater than 0.

If the display area includes 0 pixels, based on the determined third cumulative luminance of the m-th sub-pixel of the o-th pixel, the third average cumulative luminance of the sub-pixels of the same color component in the n-th display area can be calculated as follows: formula to calculate:

AmL=(P1mL+P2mL+…+PomL)/O (7)

For example, for a display module using RGB color mode, the size of m is 3. When m is equal to 1, A1L may be the third average cumulative luminance of the red component sub-pixels in the n-th display area within the preset duration; when m is equal to 2, A2L may be the green component sub-pixels in the n-th display area The third average accumulated luminance within the preset time period; when m is equal to 3, A3L may be the third average accumulated luminance of the blue component sub-pixels in the nth display area within the preset time period.

By comparing the magnitudes of the third average cumulative brightness of sub-pixels with different color components in the same display area, that is, the color component with the largest third average cumulative brightness is determined as the biased color of the display area. For example, if A3L is greater than A1L and A2L, the bias color for that area is blue.

For N display areas of the display module, N bias colors can be determined. In step S13, when the screen saver picture is selected according to the N first brightness levels, N biased colors may be further combined. The screen saver image determined based on N first brightness levels and N biased colors not only satisfies the regional brightness displayed in the n-th display area, but also is negatively correlated with the first brightness level of the n-th display area, and also satisfies the requirements in the n-th display area. The display color of the display area is different from the bias color of the nth display area.

As mentioned above, when a screen saver picture is selected from the plurality of first candidate pictures based on the first brightness level, there may be multiple first candidate pictures that all meet the selection condition of the screen saver picture. On this basis, combined with the N biased colors, a first candidate picture whose display color in the n-th display area is different from the biased color of the n-th display area can be finally screened out as a screen saver image.

It should be noted that the display color of the nth display area is different from the bias color of the nth display area, including: the display color of the screen saver picture displayed in the N display areas is different from the bias color of the N display areas; Including: the screen saver picture is displayed in the display color of part of the display areas in the N display areas, which is different from the bias color of the part of the display area.

It can be understood that, in the embodiment of the present disclosure, for a display device that can display a color image, on the basis of the first brightness level, a first candidate image that is different from the biased color is determined in combination with the biased color of the display area. As a screen saver picture, it can reduce the occurrence of damage to sub-pixels (OLED lights) caused by displaying the same color for a long time in part of the display area, and achieve balanced consumption of each sub-pixel.

In an embodiment, selecting the corresponding screen saver picture to perform the screen saver of the display module according to the N biased colors and the N first brightness levels includes:

If the biased color of the nth display area is blue, select the corresponding screen saver picture to perform the display module image selection according to the N first brightness levels and the biased color of the nth display area. screensaver;

Wherein, the display color of the screen saver picture in the nth display area is different from the blue color.

In this embodiment, because the wavelength of the blue light source is short, under the same brightness, the attenuation of the sub-pixels emitting blue light is more serious than that of sub-pixels emitting light of other colors. Therefore, on the basis of the first brightness level, based on the characteristics of the blue light source, for the display area with a biased color of blue, a picture with a color other than blue (such as red or green) displayed in the corresponding display area can be selected as a screen saver picture.

It can be understood that, in this embodiment, on the basis of the first brightness level, color screening is performed for blue according to the bias color of the display area, thereby further reducing the loss of the sub-pixels (OLED lamps) that emit blue light. .

In the embodiment of the present disclosure, the electronic device can not only determine the screen saver picture from the first candidate picture based on the first brightness level, but also obtain the screen saver picture from the second candidate picture of the server based on the first brightness level.

In one embodiment, step S13 includes:

sending the N first brightness levels to the server;

receiving the screen saver pictures fed back by the server according to the N first brightness levels;

The screen saver of the display module is performed by using the screen saver picture.

In this embodiment, since the server stores abundant picture resources, the electronic device sends the first brightness level to the server, so that the screen saver pictures obtained from the server may better protect the display module. In addition, the screen saver image is determined by the server, based on the hardware advantages of the server side, the selection speed of the screen saver image can be accelerated, and the power consumption of the electronic device side can also be reduced.

In an embodiment, selecting the corresponding screen saver picture to perform the screen saver of the display module according to the N first brightness levels includes:

sending the N first brightness levels and the N biased colors to the server;

receiving the screen saver pictures fed back by the server according to the N first brightness levels and the N biased colors;

The screen saver of the display module is performed by using the screen saver picture.

In this implementation, both the first brightness level and the biased color of each display area are sent to the server to obtain a screen saver picture, so as to better protect the display module.

In the embodiment of the present disclosure, the electronic device calculates the display module by region, obtains the first average cumulative brightness of each display region according to the first cumulative brightness of a single pixel in the display module within a preset time period, and determines The first brightness level for each display area. Therefore, the electronic device can select the corresponding screen saver picture to perform the screen saver of the display module according to the first brightness level of the plurality of display areas, wherein the screen saver picture is displayed in the area brightness of the nth display area, which is different from the brightness of the nth display area. The first brightness level is negatively correlated. On the one hand, the present disclosure directly selects a picture whose display brightness is negatively correlated with the first brightness level of the display area as the screen saver picture, and the judgment basis is simple and direct; on the other hand, the present disclosure divides the display module into N display areas for calculation, and counts each The first brightness level of the display area is used to select the screen saver picture, which can improve the refinement of the screen saver picture selection compared to the way of selecting the screen saver picture by taking the display module as a whole to count the brightness level.

FIG. 6 is a second flowchart of a method for selecting a screen saver image according to an embodiment of the present disclosure. As shown in FIG. 6 , the method is applied to a server including a plurality of second candidate images, and is applied to a method for selecting a screen saver image in the server. Include the following steps:

S21. Receive N first brightness levels sent by an electronic device; wherein one of the first brightness levels corresponds to a display area of a display module of the electronic device, and the N is greater than 1.

S22. Determine a screen saver picture from a plurality of the second candidate pictures according to the N first brightness levels; wherein, the screen saver picture is displayed at the regional brightness of the nth display area of the electronic device , which is negatively correlated with the first brightness level, and n is a positive integer less than or equal to the N.

S23. Send the screen saver picture to the electronic device.

In this step S21, the server may receive the N first brightness levels sent by the electronic device. The N first brightness levels of the electronic device may be determined according to the first average cumulative brightness of the pixels in each display area when the display module of the electronic device displays the same image or different images within a preset time period .

Exemplarily, the electronic device compares the brightness level interval in which the first average cumulative brightness is located according to the M brightness level intervals set in advance, and then determines the first brightness level of the display area; or, the electronic device determines the first brightness level of the display area according to the first average cumulative brightness. When the time comes, M brightness level intervals are divided, and the first brightness level of the display area is determined according to the brightness level interval in which the first average accumulated brightness is located.

After receiving the N first brightness levels, the server may determine a screen saver picture from the plurality of second candidate pictures according to the N first brightness levels, and send it to the electronic device. It should be noted that the screen saver picture is used for electronic device display to protect the display module. The screen saver picture negatively correlated with the first brightness level determined by the server includes: the screen saver picture is displayed in the area brightness of the N display areas of the electronic device, and is negatively correlated with the first brightness level of the N display areas; further includes: the screen saver picture The area brightness of a partial display area displayed in the N display areas of the electronic device is negatively correlated with the first brightness level of the partial display area.

In this embodiment, the server directly selects the screen saver pictures that meet the conditions according to the first brightness level of each display area, and the judgment basis is simple and direct. In addition, because there are abundant second candidate pictures stored in the server, after the server receives the first brightness level, the screen saver picture determined by the server may better protect the display module of the electronic device; and based on the hardware on the server side Advantages, it can also speed up the selection of screensaver images.

In an embodiment, the determining a screen saver picture from a plurality of the second candidate pictures according to the N first brightness levels includes:

According to the N first brightness levels and the third brightness levels of the plurality of second candidate pictures, the screen saver picture is determined from the plurality of second candidate pictures; wherein, one of the first The second candidate picture includes N third brightness levels of N second image areas, one of the second image areas corresponds to one of the display areas; the nth second image area of the screen saver picture The third brightness level is negatively correlated with the first brightness level.

In this embodiment, one second candidate picture is also divided into N second image areas, one second image area corresponds to one display area, and each second image area corresponds to one third brightness level. Therefore, according to the region correspondence, the second candidate picture whose third brightness level is negatively correlated with the first brightness level can be selected as the screen saver picture.

It can be understood that, in this embodiment, when selecting the second candidate picture negatively correlated with the first brightness level of the display area as the screen saver picture, according to the third brightness level of the second candidate picture, according to the brightness level The negative correlation relationship is used to determine the screen saver picture, which makes the selection of the screen saver picture more direct, and can improve the selection efficiency of the screen saver picture.

In one embodiment, the method for selecting a screen saver image applied to the server further includes:

determining the fourth average cumulative brightness of the nth second image region according to the fourth cumulative brightness of the pixels in the nth second image region of the second candidate picture;

The third brightness level of the nth second image area is determined according to the nth fourth average accumulated brightness.

In this embodiment, the fourth average accumulated luminance of the second image area is obtained from the fourth accumulated luminance of the pixels in the second image area. The determination of the fourth cumulative brightness of the pixels in the second image area may refer to formula (4) on the electronic device side, and the determination of the fourth average cumulative brightness may be determined by parameter formula (5), which is not repeated in this embodiment of the present disclosure.

The server determines the third brightness level of the nth second image area according to the nth fourth average cumulative brightness among the Nth fourth average cumulative brightness. Then, for the N fourth average accumulated brightnesses corresponding to the N second image regions, N fourth brightness levels can be determined.

In this embodiment of the present disclosure, when determining the third brightness level of the second candidate picture, the N fourth average cumulative brightnesses of the Nth image regions are also determined first, and then the N fourth average cumulative brightness is determined based on the N fourth average cumulative brightnesses. A third brightness level, that is, a method similar to that used to determine the first brightness level of the display area.

It can be understood that the server determines the third brightness level by adopting a method similar to that used to determine the first brightness level, that is, unifying the independent variable (the first brightness level) and the dependent variable (the third brightness level) in the process of determining the negative correlation relationship. ), which can improve the effectiveness of screen saver image selection.

In the embodiment of the present disclosure, when the third brightness level of the second image area is determined according to the fourth average accumulated brightness, in one embodiment, the second brightness level may be determined according to different brightness level intervals set in advance. The third brightness level for the image area.

In another embodiment, the brightness level interval may also be temporarily divided according to the fourth average accumulated brightness, and the third brightness level of the second image area may be determined according to the brightness level interval in which the fourth average accumulated brightness is located. .

In one embodiment, the method further includes:

dividing M third brightness intervals according to the fourth average accumulated brightness of the second image area, where M is a positive integer greater than 1;

The determining the third brightness level of the nth second image area according to the nth fourth average accumulated brightness includes:

comparing the nth fourth average cumulative brightness with the brightness in the M third brightness intervals, to determine the nth third brightness interval in which the fourth average cumulative brightness is located;

The third brightness level of the nth second image area is determined according to a third brightness interval in which the nth fourth average accumulated brightness is located.

In this embodiment, M third brightness intervals are temporarily divided based on the sum of the fourth average accumulated brightness of the N second image regions, and different third brightness intervals correspond to different third brightness levels. The number M of the third brightness intervals may be the same as the number of the first brightness intervals.

It can be understood that, in this embodiment, the third brightness interval is determined by comprehensively considering the fourth average cumulative brightness of all the second image areas, and the third brightness level is further determined, so that the After the screen saver picture is determined by a negative correlation of brightness levels, when the screen saver picture is used for the screen saver of the display module, the brightness consumption of each display area in each display module can be uniform.

It should be noted that, in the embodiment of the present disclosure, the negative correlation between the third brightness level and the first brightness level may be determined by the level difference between the third brightness level and the first brightness level.

In an embodiment, the screen saver is determined from the plurality of second candidate pictures according to the N first brightness levels and the third brightness levels of the plurality of second candidate pictures Pictures, including:

obtaining a second level difference between the third brightness level of the nth second image area of the second candidate picture and the first brightness level of the nth display area;

calculating the sum of the N second level differences;

From the plurality of second candidate pictures, the second candidate picture with the largest sum of the second level differences is determined as the screen saver picture.

In this embodiment, the screen saver picture is determined by the sum of the second level differences, so that the selection of the screen saver picture is more direct, and the selection efficiency of the screen saver picture can be improved. It should be noted that calculating the sum of the N second level differences refers to taking the absolute values of the second level differences respectively and then adding and summing them.

In one embodiment, the method further includes:

receiving the N bias colors of the N display areas sent by the electronic device;

The determining of the screen saver picture from the plurality of second candidate pictures according to the N first brightness levels includes:

determining the screen saver picture from a plurality of the second candidate pictures according to the N first brightness levels and the N bias colors;

Wherein, the display color of the screen saver picture in the nth display area is different from the bias color of the nth display area.

In this embodiment, the electronic device side determines the color component with the largest third average accumulated luminance as the biased color of the display area by comparing the magnitudes of the third average accumulated luminances of sub-pixels with different color components in the same display area. For the determination of the third average accumulated brightness, reference is made to formula (6) and formula (7) on the electronic device side, which will not be repeated in this embodiment.

In the embodiment of the present disclosure, the server may also receive N bias colors sent by the electronic device. The screen saver image determined by the server based on the N first brightness levels and N biased colors not only satisfies the regional brightness displayed in the nth display area, but is negatively correlated with the first brightness level of the nth display area, but also satisfies the requirements in the nth display area. The display color of the nth display area is different from the bias color of the nth display area.

As mentioned above, when a screen saver picture is selected from the plurality of second candidate pictures based on the first brightness level, there may be multiple second candidate pictures that all meet the selection conditions of the screen saver picture. On this basis, combined with the N biased colors, a second candidate picture whose display color in the n-th display area is different from the biased color in the n-th display area can be finally screened out as a screen saver image.

It should be noted that the display color of the nth display area is different from the bias color of the nth display area, including: the display color of the screen saver picture displayed in the N display areas is different from the bias color of the N display areas; Including: the screen saver picture is displayed in the display color of part of the display areas in the N display areas, which is different from the bias color of the part of the display area.

It can be understood that, in the embodiment of the present disclosure, for a display device that can display a color image, the server determines a second alternative that is different from the biased color on the basis of the first brightness level and in combination with the biased color of the display area. The picture is used as a screen saver picture, which can reduce the occurrence of damage to sub-pixels (OLED lights) caused by displaying the same color for a long time in part of the display area, and achieve balanced consumption of each sub-pixel.

In an embodiment, the determining the screen saver picture from a plurality of the second candidate pictures according to the N first brightness levels and the N bias colors includes:

If the biased color of the nth display area is blue, it is determined from a plurality of the second candidate pictures according to the N first brightness levels and the biased color of the nth display area the screen saver picture;

Wherein, the display color of the screen saver picture in the nth display area is different from the blue color.

In this embodiment, because the wavelength of the blue light source is short, under the same brightness, the attenuation of the sub-pixels emitting blue light is more serious than that of sub-pixels emitting light of other colors. Therefore, on the basis of the first brightness level, the server may, based on the characteristics of the blue light source, for the display area with a biased color of blue, select a picture whose color is not blue (such as red or green) to be displayed in the corresponding display area as Screen saver pictures.

It can be understood that, in this embodiment, on the basis of the first brightness level, color screening is performed for blue according to the bias color of the display area, thereby further reducing the loss of the sub-pixels (OLED lamps) that emit blue light. .

7 is an interactive flowchart of a method for selecting a screen saver picture shown in an embodiment of the present disclosure. As shown in FIG. 7 , the method for selecting a screen saver picture applied to an electronic device and a server includes the following steps:

S31. The electronic device determines the first average cumulative brightness of the display area according to the first cumulative brightness of a single pixel in the display module within a preset time period, wherein the display module includes N display areas, and N is greater than 1.

S32. The electronic device determines the first brightness level of the nth display area according to the nth first average accumulated brightness; wherein, the n is a positive integer less than or equal to the N.

S33. The electronic device sends the N first brightness levels to the server.

S34. The server determines a screen saver picture from a plurality of second candidate pictures according to the N first brightness levels; wherein, the screen saver picture is displayed at the regional brightness of the nth display area of the electronic device, Negatively related to the first brightness level, the n is a positive integer less than or equal to the N.

S35, the server sends the screen saver picture to the electronic device.

S36, the electronic device uses the screen saver picture to perform the screen saver of the display module.

In the embodiment of the present disclosure, the electronic device calculates the display module by region, obtains the first average cumulative brightness of each display region according to the first cumulative brightness of a single pixel in the display module within a preset time period, and determines The first brightness level of each display area is used to select the screen saver image. Compared with the method of selecting the screen saver image by taking the display module as a whole to count the brightness levels, the screen saver image selection can be refined. Secondly, the electronic device sends the first brightness level to the server, and the server side determines the screen saver picture according to the first brightness level. On the one hand, the server can directly select the picture whose display brightness is negatively correlated with the first brightness level of the display area as the screen saver picture , the judgment basis is simple and direct; on the other hand, because the server stores a wealth of second candidate pictures, therefore, after the server receives the first brightness level, the screen saver picture determined by the server may better protect the display mode of the electronic device. group, and based on the hardware advantages of the server side, it can also speed up the selection of screensaver images.

FIG. 8 is an example diagram of a method for selecting a screen saver picture shown in an embodiment of the present disclosure. As shown in FIG. 8 , the method for selecting a screen saver picture includes the following steps:

S41, the television acquires the average brightness of the nth display area; wherein, the television screen of the television is divided into N display areas.

In this embodiment, the television set is an electronic device, and the average brightness of the n th display area refers to the first average cumulative brightness of the n th display area of the television set within a preset time period.

S42, the TV detects whether the traversal of the N display areas is completed. If no, go to step S41; if yes, go to step S43.

S43 , the television set is divided into grades according to the average brightness of the display area, and the grade of each display area is obtained.

In this embodiment, the binning refers to determining the first brightness level of the display area, and the binning refers to the first brightness level. After the TV set obtains the average brightness (the first average cumulative brightness) of the N display areas through traversal, the first brightness level of each display area can be determined according to the average brightness of each display area.

S44, the TV detects whether the screen saver is triggered. If no, go to step S42; if yes, go to step S45.

S45, the television matches the gears of each display area with the gears of the first candidate picture.

In this embodiment, the gear level of the first candidate picture refers to the second brightness level of the first candidate picture. Matching the gear of each display area with the gear of the first candidate picture by the television is to match the first brightness level with the second brightness level. The matching refers to whether the first brightness level and the second brightness level are negatively correlated.

S46, the TV determines whether the matching is successful. If yes, go to step S47; if no, go to step S48.

S47, the TV enters the screen saver, and displays the successfully matched pictures.

In this embodiment, if there is a picture in which the second brightness level of the first candidate picture is negatively correlated with the first brightness level of the display area, the screen saver picture selected is displayed.

S48. The TV enters the screen saver, and randomly displays pictures.

In this embodiment, if there is no picture in which the second brightness level of the first candidate picture is negatively correlated with the first brightness level of the display area, a first candidate picture is randomly displayed.

In the embodiment of the present disclosure, the TV obtains the average brightness (first average cumulative brightness) of each display area and divides it into bins, so as to detect whether there is a matching picture for screen saver according to the bins (first brightness level). The matching refers to the area brightness of the screen saver image displayed in the nth display area, which is negatively correlated with the gear position of the nth display area. On the one hand, the present disclosure directly selects a picture whose display brightness is negatively correlated with the gear position of the display area as the screen saver picture, and the judgment basis is simple and direct; on the other hand, the present disclosure will divide the calculation into N display areas. Therefore, based on the set number of display areas, the algorithm complexity and precision can be adjusted, thereby making the selection of the screen saver pictures of the present disclosure more intelligent.

FIG. 9 is a diagram 1 of an apparatus for selecting a screen saver picture according to an exemplary embodiment. Referring to Fig. 9, the device for selecting a screen saver picture is applied to an electronic device comprising a display module, and the device includes:

The first determination module 101 is configured to determine the first average cumulative brightness of the display area according to the first cumulative brightness of a single pixel in the display module within a preset time period, wherein the display module includes N displays. region, the N is greater than 1;

The second determination module 102 is configured to determine the first brightness level of the nth display area according to the nth first average accumulated brightness; wherein, the n is a positive integer less than or equal to the N;

The selection module 103 is configured to select the corresponding screen saver picture to perform the screen saver of the display module according to the N first brightness levels, wherein the screen saver picture is displayed in the nth region brightness of the display area, and the The first brightness level of the nth display area is negatively correlated.

Optionally, the device further includes:

The third determining module 104 is configured to determine the first cumulative luminance of the single pixel according to the electrical signal values corresponding to the single pixel in different time periods within the preset time period.

Optionally, the device further includes:

The first dividing module 105 is configured to divide M first luminance intervals according to the first average cumulative luminance of each of the display areas, where M is a positive integer greater than 1;

The second determining module 102 is specifically configured to compare the nth first average cumulative brightness with the brightness in the M first brightness intervals, and determine where the nth first average cumulative brightness is located. The first brightness interval of the nth display area is determined; the first brightness level of the nth display area is determined according to the first brightness interval in which the nth first average accumulated brightness is located.

Optionally, the selection module 103 is specifically configured to select the selected one from the multiple first candidate pictures according to the N first brightness levels and the second brightness levels of the multiple first candidate pictures. The screen saver picture; wherein, a piece of the first candidate picture includes N second brightness levels of N first image regions, and one of the first image regions corresponds to one of the display regions; the screen saver picture The second brightness level of the n-th first image area is negatively correlated with the first brightness level.

Optionally, the device further includes:

The fourth determination module 106 is configured to determine the second average cumulative brightness of the n-th first image region according to the second cumulative brightness of the pixels in the n-th first image region of the first candidate picture; The nth second average accumulated brightness determines the second brightness level of the nth first image area.

Optionally, the device further includes:

The second dividing module 107 is configured to divide M second luminance intervals according to the second average cumulative luminance of each of the first image regions, where M is a positive integer greater than 1;

The second determining module 102 is specifically configured to compare the nth second average cumulative brightness with the brightness in the M second brightness intervals, and determine where the nth second average cumulative brightness is located. The second brightness interval of the nth first image area is determined according to the second brightness interval in which the nth second average accumulated brightness is located. The second brightness level of the nth first image area is determined.

Optionally, the selection module 103 is specifically configured to obtain the difference between the second brightness level of the nth first image area of the first candidate picture and the first brightness level of the nth display area. Calculate the sum of N first level differences; from a plurality of first candidate pictures, select the first candidate picture with the largest sum of the first level differences as the The screensaver picture.

Optionally, the device further includes:

The fifth determination module 108 is configured to determine, according to the third cumulative luminance of the different color sub-pixels of the single pixel in the n-th display area within the preset time period, determine that the n-th display area belongs to the same the third average cumulative brightness of the sub-pixels of the color component; determining that the color component with the largest third average cumulative brightness is the biased color of the nth display area;

The selection module 103 is specifically configured to select a corresponding screen saver picture to perform the screen saver of the display module according to the N bias colors and the N first brightness levels; wherein, the screen saver picture is in the nth screen saver. The display color of the display area is different from the bias color of the nth display area.

Optionally, the selection module 103 is specifically configured to, if the biased color of the nth display area is blue, according to the biased color of the Nth first brightness level and the nth display area. , select the corresponding screen saver picture to perform the screen saver of the display module; wherein, the display color of the screen saver picture in the nth display area is different from the blue color.

Optionally, the selection module includes:

The first sending module 109 is configured to send the N first brightness levels to the server;

The first receiving module 110 is configured to receive the screen saver pictures fed back by the server according to the N first brightness levels; and use the screen saver pictures to perform the screen saver of the display module.

Optionally, the first sending module 109 is specifically configured to send the N first brightness levels and the N biased colors to the server;

The first receiving module 110 is specifically configured to receive the screen saver pictures fed back by the server according to the N first brightness levels and the N bias colors; and use the screen saver pictures to perform the display module's screensaver.

FIG. 10 is a second diagram of an apparatus for selecting a screen saver picture according to an exemplary embodiment. Referring to Figure 10, the device for selecting a screen saver picture is applied to a server including a plurality of second candidate pictures, and the device includes:

The second receiving module 201 is configured to receive N first brightness levels sent by an electronic device; wherein one of the first brightness levels corresponds to a display area of a display module of the electronic device, and the N is greater than 1;

A sixth determination module 202, configured to determine a screen saver picture from a plurality of the second candidate pictures according to the N first brightness levels;

The second sending module 203 is configured to send the screen saver picture to the electronic device; wherein the screen saver picture is displayed in the nth display area of the electronic device. The regional brightness of the display area is the same as the first brightness level Negative correlation, the n is a positive integer less than or equal to the N.

Optionally, the sixth determination module 202 is specifically configured to, according to the N first brightness levels and the third brightness levels of the plurality of second candidate pictures, select from the plurality of second candidate pictures. Determine the screen saver picture in the picture; wherein, one of the second candidate pictures includes N third brightness levels of N second image regions, and one of the second image regions corresponds to one of the display regions; The third brightness level of the nth second image area of the screen saver picture is negatively correlated with the first brightness level.

Optionally, the device further includes:

A seventh determination module 204, configured to determine the fourth average cumulative brightness of the nth second image region according to the fourth cumulative brightness of the pixels in the nth second image region of the second candidate picture ; determining the third brightness level of the nth second image area according to the nth fourth average accumulated brightness.

Optionally, the device further includes:

The third dividing module 205 is configured to divide M third luminance intervals according to the fourth average accumulated luminance of the second image area, where M is a positive integer greater than 1;

The seventh determination module 206 is specifically configured to compare the nth fourth average cumulative brightness with the brightness in the M third brightness intervals, and determine where the nth fourth average cumulative brightness is located. The third brightness interval of the nth second image area is determined according to the third brightness interval in which the nth fourth average accumulated brightness is located. The third brightness level of the nth second image area is determined.

Optionally, the sixth determination module 202 is specifically configured to acquire the third brightness level of the nth second image area of the second candidate picture and the first brightness of the nth display area. the second level difference between levels; calculate the sum of the N second level differences; from a plurality of the second candidate pictures, take the second candidate with the largest sum of the second level differences The picture is determined as the screen saver picture.

Optionally, the device further includes:

The third receiving module 207 is configured to receive the N biased colors of the N display areas sent by the electronic device;

The sixth determining module 202 is specifically configured to determine the screen saver picture from a plurality of the second candidate pictures according to the N first brightness levels and the N bias colors; wherein, the screen saver The display color of the picture in the nth display area is different from the bias color of the nth display area.

Optionally, the sixth determination module 202 is specifically configured to, if the bias color of the nth display area is blue, according to the N first brightness levels and the nth display area Biased to color, the screen saver picture is determined from a plurality of the second candidate pictures; wherein, the display color of the screen saver picture in the nth display area is different from the blue color.

Regarding the apparatus in the above-mentioned embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method, and will not be described in detail here.

Fig. 11 is a block diagram of an electronic device according to an exemplary embodiment. For example, the device 800 may be a cell phone, a television, or the like.

11, the apparatus 800 may include one or more of the following components: a processing component 802, a memory 804, a power supply component 806, a multimedia component 808, an audio component 810, an input/output (I/O) interface 812, a sensor component 814, and communication component 816.

The processing component 802 generally controls the overall operation of the device 800, such as operations associated with display, phone calls, data communications, camera operations, and recording operations. The processing component 802 can include one or more processors 820 to execute instructions to perform all or some of the steps of the methods described above. Additionally, processing component 802 may include one or more modules that facilitate interaction between processing component 802 and other components. For example, processing component 802 may include a multimedia module to facilitate interaction between multimedia component 808 and processing component 802.

Memory 804 is configured to store various types of data to support operations at device 800 . Examples of such data include instructions for any application or method operating on device 800, contact data, phonebook data, messages, pictures, videos, and the like. Memory 804 may be implemented by any type of volatile or nonvolatile storage device or combination thereof, such as static random access memory (SRAM), electrically erasable programmable read only memory (EEPROM), erasable Programmable Read Only Memory (EPROM), Programmable Read Only Memory (PROM), Read Only Memory (ROM), Magnetic Memory, Flash Memory, Magnetic or Optical Disk.

Power supply assembly 806 provides power to the various components of device 800 . Power supply components 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to device 800 .

Multimedia component 808 includes a screen that provides an output interface between the device 800 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user. The touch panel includes one or more touch sensors to sense touch, swipe, and gestures on the touch panel. The touch sensor may not only sense the boundaries of a touch or swipe action, but also detect the duration and pressure associated with the touch or swipe action. In some embodiments, the multimedia component 808 includes a front-facing camera and/or a rear-facing camera. When the apparatus 800 is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera may receive external multimedia data. Each of the front and rear cameras can be a fixed optical lens system or have focal length and optical zoom capability.

Audio component 810 is configured to output and/or input audio signals. For example, audio component 810 includes a microphone (MIC) that is configured to receive external audio signals when device 800 is in operating modes, such as call mode, recording mode, and voice recognition mode. The received audio signal may be further stored in memory 804 or transmitted via communication component 816 . In some embodiments, audio component 810 also includes a speaker for outputting audio signals.

The I/O interface 812 provides an interface between the processing component 802 and a peripheral interface module, which may be a keyboard, a click wheel, a button, or the like. These buttons may include, but are not limited to: home button, volume buttons, start button, and lock button.

Sensor assembly 814 includes one or more sensors for providing status assessment of various aspects of device 800 . For example, the sensor assembly 814 can detect the open/closed state of the device 800, the relative positioning of components, such as the display and keypad of the device 800, and the sensor assembly 814 can also detect a change in the position of the device 800 or a component of the device 800 , the presence or absence of user contact with the device 800 , the orientation or acceleration/deceleration of the device 800 and the temperature change of the device 800 . Sensor assembly 814 may include a proximity sensor configured to detect the presence of nearby objects in the absence of any physical contact. Sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 814 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

Communication component 816 is configured to facilitate wired or wireless communication between apparatus 800 and other devices. Device 800 may access wireless networks based on communication standards, such as Wi-Fi, 2G or 3G, or a combination thereof. In one exemplary embodiment, the communication component 816 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 816 also includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.

In an exemplary embodiment, apparatus 800 may be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable A gate array (FPGA), controller, microcontroller, microprocessor or other electronic component implementation is used to perform the above method.

In an exemplary embodiment, there is also provided a non-transitory computer-readable storage medium including instructions, such as a memory 804 including instructions, executable by the processor 820 of the apparatus 800 to perform the method described above. For example, the non-transitory computer-readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, and the like.

A non-transitory computer-readable storage medium, when an instruction in the storage medium is executed by a processor of an electronic device, an electronic device including a display module can execute a method for selecting a screen saver picture, the method comprising:

Determine the first average cumulative brightness of the display area according to the first cumulative brightness of a single pixel in the display module within a preset time period, wherein the display module includes N display areas, and the N is greater than 1;

Determine the first brightness level of the nth display area according to the nth first average cumulative brightness; wherein, the n is a positive integer less than or equal to the N;

According to the N first brightness levels, the corresponding screen saver picture is selected to perform the screen saver of the display module, wherein the screen saver picture is displayed in the nth display area of the regional brightness, which is the same as that of the nth display area. The first brightness level of the display area is negatively correlated.

Fig. 12 is a block diagram of a server device according to an exemplary embodiment. 12, apparatus 900 includes a processing component 922, which further includes one or more processors, and a memory resource, represented by memory 932, for storing instructions executable by processing component 922, such as an application program. An application program stored in memory 932 may include one or more modules, each corresponding to a set of instructions. Furthermore, the processing component 922 is configured to execute instructions to perform the information processing methods described above.

Device 900 may also include a power supply assembly 926 configured to perform power management of device 900 , a wired or wireless network interface 950 configured to connect device 900 to a network, and an input output (I/O) interface 958 . Device 900 may operate based on an operating system stored in memory 932, such as Windows Server™, Mac OSX™, Unix™, Linux™, FreeBSD™ or the like.

In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions, such as a memory 932 including instructions, executable by the processing component 922 of the apparatus 900 to perform the method described above is also provided. For example, the non-transitory computer-readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, and the like.

A non-transitory computer-readable storage medium, when an instruction in the storage medium is executed by a processing component of a server, enables the server to execute an information processing method, the method comprising:

receiving N first brightness levels sent by an electronic device; wherein one of the first brightness levels corresponds to a display area of a display module of the electronic device, and the N is greater than 1;

According to the N first brightness levels, determine a screen saver picture from a plurality of the second candidate pictures;

Send the screen saver picture to the electronic device; wherein, the screen saver picture is displayed in the nth display area of the electronic device. The regional brightness of the display area is negatively correlated with the first brightness level, and the n is less than or a positive integer equal to the N.

Other embodiments of the present disclosure will readily suggest themselves to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common general knowledge or techniques in the technical field not disclosed by this disclosure . The specification and examples are to be regarded as exemplary only, with the true scope and spirit of the disclosure being indicated by the following claims.

It is to be understood that the present disclosure is not limited to the precise structures described above and illustrated in the accompanying drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (38)

1. a method for selecting a screen saver picture, is characterized in that, is applied in the electronic equipment comprising display module, and described method comprises: Determine the first average cumulative brightness of the display area according to the first cumulative brightness of a single pixel in the display module within a preset time period, wherein the display module includes N display areas, and the N is greater than 1; Determine the first brightness level of the nth display area according to the nth first average cumulative brightness; wherein, the n is a positive integer less than or equal to the N; According to the N first brightness levels, the corresponding screen saver picture is selected to perform the screen saver of the display module, wherein the screen saver picture is displayed in the nth display area of the regional brightness, which is the same as that of the nth display area. The first brightness level of the display area is negatively correlated. 2. The method according to claim 1, wherein the method further comprises: The first cumulative luminance of a single pixel is determined according to electrical signal values corresponding to different time periods of the single pixel within the preset time period. 3. The method according to claim 1, wherein the method further comprises: According to the first average accumulated brightness of each of the display areas, M first brightness intervals are divided, where M is a positive integer greater than 1; The determining the first brightness level of the n-th display area according to the n-th first average accumulated brightness includes: comparing the nth first average cumulative brightness with the brightness in M first brightness intervals, to determine the first brightness interval in which the nth first average cumulative brightness is located; The first brightness level of the nth display area is determined according to the first brightness interval in which the nth first average accumulated brightness is located. 4. The method according to claim 3, wherein, according to the N first brightness levels, selecting a corresponding screen saver picture to perform the screen saver of the display module, comprising: According to the N first brightness levels and the second brightness levels of the plurality of first candidate pictures, the screen saver picture is selected from the plurality of first candidate pictures; wherein, one of the first candidate pictures The N second brightness levels of the N first image areas are included, and each of the first image areas corresponds to one of the display areas; the second brightness level of the nth first image area of the screensaver picture The brightness level is inversely related to the first brightness level. 5. The method according to claim 4, wherein the method further comprises: determining the second average cumulative brightness of the nth first image region according to the second cumulative brightness of the pixels in the nth first image region of the first candidate picture; The second brightness level of the nth first image area is determined according to the nth second average accumulated brightness. 6. The method according to claim 5, wherein the method further comprises: dividing M second brightness intervals according to the second average cumulative brightness of each of the first image regions; The determining the second brightness level of the nth first image area according to the nth second average accumulated brightness includes: comparing the nth second average cumulative brightness with the brightness in M second brightness intervals, to determine the second brightness interval in which the nth second average cumulative brightness is located; The second brightness level of the nth first image area is determined according to the second brightness interval in which the nth second average accumulated brightness is located. 7. The method according to claim 4, wherein, according to the N first brightness levels and the second brightness levels of a plurality of first candidate pictures, from a plurality of first candidate pictures Select the screensaver picture, including: obtaining the first level difference between the second brightness level of the nth first image area of the first candidate picture and the first brightness level of the nth display area; calculating the sum of the N first level differences; From a plurality of the first candidate pictures, the first candidate picture with the largest sum of the first level differences is selected as the screen saver picture. 8. The method according to any one of claims 1 to 7, wherein the method further comprises: According to the third cumulative luminance of sub-pixels of different colors of a single pixel in the n-th display area within the preset time period, determine the third sub-pixel belonging to the same color component in the n-th display area Average cumulative brightness; determining that the color component with the largest third average accumulated brightness is the bias color of the nth display area; According to the N first brightness levels, selecting the corresponding screen saver picture to perform the screen saver of the display module, including: According to the N bias colors and the N first brightness levels, select the corresponding screen saver picture to perform the screen saver of the display module; Wherein, the display color of the screen saver picture in the nth display area is different from the bias color of the nth display area. 9. The method according to claim 8, wherein, according to the N biased colors and the N first brightness levels, selecting a corresponding screen saver picture to perform the screen saver of the display module, comprising: If the biased color of the nth display area is blue, select the corresponding screen saver picture to perform the display module image selection according to the N first brightness levels and the biased color of the nth display area. screensaver; Wherein, the display color of the screen saver picture in the nth display area is different from the blue color. 10. The method according to claim 1, wherein, according to the N first brightness levels, selecting a corresponding screen saver picture to perform the screen saver of the display module, comprising: sending the N first brightness levels to the server; receiving the screen saver pictures fed back by the server according to the N first brightness levels; The screen saver of the display module is performed by using the screen saver picture. 11. The method according to claim 8, wherein, according to the N first brightness levels, selecting a corresponding screen saver picture to perform the screen saver of the display module, comprising: sending the N first brightness levels and the N biased colors to the server; Receive N first brightness levels sent by the service receiving electronic device; wherein, one of the first brightness levels corresponds to a display area of a display module of the electronic device, and the N is greater than 1; According to the N first brightness levels, determine a screen saver picture from a plurality of the second candidate pictures; Send the screen saver picture to the electronic device; wherein, the screen saver picture is displayed in the nth display area of the electronic device. The regional brightness of the display area is negatively correlated with the first brightness level, and the n is less than or a positive integer equal to the N. the screen saver pictures fed back according to the N first brightness levels and the N biased colors; The screen saver of the display module is performed by using the screen saver picture. 12. A method for selecting a screen saver picture, characterized in that, being applied to a server comprising a plurality of second candidate pictures, the method comprising: receiving N first brightness levels sent by an electronic device; wherein one of the first brightness levels corresponds to a display area of a display module of the electronic device, and the N is greater than 1; According to the N first brightness levels, determine a screen saver picture from a plurality of the second candidate pictures; Send the screen saver picture to the electronic device; wherein, the screen saver picture is displayed in the nth display area of the electronic device. The regional brightness of the display area is negatively correlated with the first brightness level, and the n is less than or a positive integer equal to the N. 13. The method according to claim 12, wherein the determining a screen saver picture from a plurality of the second candidate pictures according to the N first brightness levels comprises: According to the N first brightness levels and the third brightness levels of the plurality of second candidate pictures, the screen saver picture is determined from the plurality of second candidate pictures; wherein, one of the first The second candidate picture includes N third brightness levels of N second image areas, one of the second image areas corresponds to one of the display areas; the nth second image area of the screen saver picture The third brightness level is negatively correlated with the first brightness level. 14. The method of claim 13, wherein the method further comprises: determining the fourth average cumulative brightness of the nth second image region according to the fourth cumulative brightness of the pixels in the nth second image region of the second candidate picture; The third brightness level of the nth second image area is determined according to the nth fourth average accumulated brightness. 15. The method of claim 14, wherein the method further comprises: dividing M third brightness intervals according to the fourth average accumulated brightness of the second image area, where M is a positive integer greater than 1; The determining the third brightness level of the nth second image area according to the nth fourth average accumulated brightness includes: comparing the nth fourth average cumulative brightness with the brightness in the M third brightness intervals, to determine the nth third brightness interval in which the fourth average cumulative brightness is located; The third brightness level of the nth second image area is determined according to a third brightness interval in which the nth fourth average accumulated brightness is located. 16 . The method according to claim 13 , wherein, according to the N first brightness levels and the third brightness levels of the plurality of second candidate pictures, from the plurality of second candidate pictures 16 . The screen saver picture is determined from the candidate pictures, including: obtaining a second level difference between the third brightness level of the nth second image area of the second candidate picture and the first brightness level of the nth display area; calculating the sum of the N second level differences; From the plurality of second candidate pictures, the second candidate picture with the largest sum of the second level differences is determined as the screen saver picture. 17. The method according to any one of claims 12 to 16, wherein the method further comprises: receiving the N bias colors of the N display areas sent by the electronic device; The determining of the screen saver picture from the plurality of second candidate pictures according to the N first brightness levels includes: determining the screen saver picture from a plurality of the second candidate pictures according to the N first brightness levels and the N bias colors; Wherein, the display color of the screen saver picture in the nth display area is different from the bias color of the nth display area. 18. The method according to claim 17, wherein the screen saver picture is determined from a plurality of the second candidate pictures according to the N first brightness levels and the N bias colors ,include: If the biased color of the nth display area is blue, it is determined from a plurality of the second candidate pictures according to the N first brightness levels and the biased color of the nth display area the screen saver picture; Wherein, the display color of the screen saver picture in the nth display area is different from the blue color. 19. A device for selecting a screen saver picture, characterized in that, applied to an electronic device comprising a display module, the device comprising: a first determining module, configured to determine the first average cumulative brightness of the display area according to the first cumulative brightness of a single pixel in the display module within a preset time period, wherein the display module includes N display areas , the N is greater than 1; a second determination module, configured to determine the first brightness level of the nth display area according to the nth first average accumulated brightness; wherein, the n is a positive integer less than or equal to the N; The selection module is configured to select the corresponding screen saver picture to perform the screen saver of the display module according to the N first brightness levels, wherein the screen saver picture is displayed in the nth region brightness of the display area, which is the same as that of all the screen savers. The first brightness level of the nth display area is negatively correlated. 20. The apparatus of claim 19, wherein the apparatus further comprises: The third determination module is configured to determine the first cumulative luminance of the single pixel according to the electrical signal values corresponding to the single pixel in different time periods within the preset time period. 21. The apparatus of claim 19, wherein the apparatus further comprises: a first dividing module, configured to divide M first luminance intervals according to the first average cumulative luminance of each of the display areas, where M is a positive integer greater than 1; The second determining module is specifically configured to compare the nth first average cumulative brightness with the brightness in the M first brightness intervals, and determine where the nth first average cumulative brightness is located. A first brightness interval; the first brightness level of the nth display area is determined according to the first brightness interval in which the nth first average accumulated brightness is located. 22. The apparatus of claim 21, wherein The selection module is specifically configured to select the screen saver picture from the plurality of first candidate pictures according to the N first brightness levels and the second brightness levels of the plurality of first candidate pictures; wherein , a piece of the first candidate picture includes N second brightness levels of N first image regions, and one of the first image regions corresponds to one of the display regions; The second brightness level of the first image area is negatively correlated with the first brightness level. 23. The apparatus of claim 22, wherein the apparatus further comprises: a fourth determination module, configured to determine the second average cumulative brightness of the nth first image area according to the second cumulative brightness of the pixels in the nth first image area of the first candidate picture; The n second average accumulated luminances determine the second luminance level of the nth first image area. 24. The apparatus of claim 23, wherein the apparatus further comprises: a second dividing module, configured to divide M second luminance intervals according to the second average cumulative luminance of each of the first image regions; The second determining module is specifically configured to compare the nth second average cumulative brightness with the brightness in the M second brightness intervals, and determine the location where the nth second average cumulative brightness is located. second brightness interval; determining the second brightness level of the nth first image area according to the second brightness interval in which the nth second average accumulated brightness is located. 25. The apparatus of claim 22, wherein The selection module is specifically configured to obtain a first level between the second brightness level of the nth first image area of the first candidate picture and the first brightness level of the nth display area difference; calculating the sum of the N first level differences; selecting the first candidate picture with the largest sum of the first level differences from the plurality of first candidate pictures as the screen saver picture. 26. The device according to any one of claims 19 to 25, wherein the device further comprises: A fifth determination module, configured to determine the same color in the nth display area according to the third cumulative brightness of the different color sub-pixels of the single pixel in the nth display area within the preset time period the third average cumulative brightness of the sub-pixels of the component; determining that the color component with the largest third average cumulative brightness is the biased color of the nth display area; The selection module is specifically configured to select the corresponding screen saver picture to perform the screen saver of the display module according to the N bias colors and the N first brightness levels; wherein the screen saver picture is in the nth place. The display color of the display area is different from the bias color of the nth display area. 27. The apparatus of claim 26, wherein The selection module is specifically configured to, if the bias color of the nth display area is blue, select the corresponding screen saver according to the N first brightness levels and the bias color of the nth display area. The picture is used for the screen saver of the display module; wherein, the display color of the screen saver picture in the nth display area is different from the blue color. 28. The apparatus of claim 19, wherein the selection module comprises: a first sending module, configured to send the N first brightness levels to the server; The first receiving module is configured to receive the screen saver pictures fed back by the server according to the N first brightness levels; and use the screen saver pictures to perform the screen saver of the display module. 29. The apparatus of claim 28, wherein The first sending module is specifically configured to send the N first brightness levels and the N biased colors to the server; The first receiving module is specifically configured to receive the screen saver pictures fed back by the server according to the N first brightness levels and the N bias colors; and use the screen saver pictures to perform the screen saver of the display module . 30. A device for selecting a screen saver picture, characterized in that, applied to a server comprising a plurality of second candidate pictures, the device comprising: The second receiving module is configured to receive N first brightness levels sent by the electronic device; wherein one of the first brightness levels corresponds to a display area of the display module of the electronic device, and the N is greater than 1; a sixth determining module, configured to determine a screen saver picture from a plurality of the second candidate pictures according to the N first brightness levels; The second sending module is configured to send the screen saver picture to the electronic device; wherein the screen saver picture is displayed in the nth display area of the electronic device. The regional brightness is negative with the first brightness level Relatedly, the n is a positive integer less than or equal to the N. 31. The apparatus of claim 30, wherein The sixth determining module is specifically configured to, according to the N first brightness levels and the third brightness levels of the second candidate pictures, determine the second candidate pictures from the plurality of second candidate pictures. A screen saver picture; wherein, one of the second candidate pictures includes N third brightness levels of N second image regions, and one of the second image regions corresponds to one of the display regions; The third brightness level of the nth second image area is negatively correlated with the first brightness level. 32. The apparatus of claim 31, wherein the apparatus further comprises: A seventh determination module, configured to determine the fourth average cumulative brightness of the nth second image region according to the fourth cumulative brightness of the pixels in the nth second image region of the second candidate picture; The third brightness level of the nth second image area is determined according to the nth fourth average accumulated brightness. 33. The apparatus of claim 30, wherein the apparatus further comprises: a third dividing module, configured to divide M third luminance intervals according to the fourth average accumulated luminance of the second image area, where M is a positive integer greater than 1; The seventh determination module is specifically configured to compare the nth fourth average cumulative brightness with the brightness in the M third brightness intervals, and determine the location where the nth fourth average cumulative brightness is located. a third brightness interval; determining the third brightness level of the nth second image area according to the third brightness interval in which the nth fourth average accumulated brightness is located. 34. The apparatus of claim 31, wherein The sixth determination module is specifically configured to obtain the third brightness level between the nth second image area of the second candidate picture and the first brightness level of the nth display area. Two level differences; calculating the sum of N second level differences; from a plurality of second candidate pictures, determining the second candidate picture with the largest sum of the second level differences as the Screen saver pictures. 35. The apparatus of any one of claims 30 to 34, wherein the apparatus further comprises: a third receiving module, configured to receive the N biased colors of the N display areas sent by the electronic device; The sixth determination module is specifically configured to determine the screen saver picture from a plurality of the second candidate pictures according to the N first brightness levels and the N bias colors; wherein, the screen saver picture The display color in the nth display area is different from the bias color in the nth display area. 36. The apparatus of claim 35, wherein The sixth determination module is specifically configured to, if the bias color of the nth display area is blue, according to the N first brightness levels and the bias color of the nth display area, from the most The screen saver picture is determined from the second candidate pictures; wherein, the display color of the screen saver picture in the nth display area is different from the blue color. 37. A device for selecting a screen saver picture, characterized in that, comprising: processor; memory for storing processor-executable instructions; Wherein, the processor is configured to execute the method for selecting a screen saver picture according to any one of claims 1 to 11; or configured to execute the screen saver picture selection method according to any one of claims 12 to 18 Choose a method. 38. A non-transitory computer-readable storage medium, when the instructions in the storage medium are executed by the processor of the device for selecting a screen saver picture, the device for selecting a screen saver picture can execute any one of claims 1 to 11 or be configured to execute the method for selecting a screen saver picture according to any one of claims 12 to 18.

Images