CN109976450A - Screen calibration method, device, electronic device and storage medium - Google Patents

Abstract

The embodiment of the application provides a screen calibration method, a screen calibration device, electronic equipment and a storage medium, wherein the screen calibration method comprises the steps of obtaining the brightness value of each display area; calculating the discrete degree of the brightness values of the plurality of display areas; when the discrete degree is larger than or equal to a discrete threshold value, adjusting the driving currents of the plurality of display areas until the discrete degree does not exceed the discrete threshold value, and storing the adjusted driving currents as calibration currents; and driving and displaying a plurality of display areas by the calibration current corresponding to each display area. The screen calibration method, the screen calibration device, the electronic equipment and the storage medium can process the screen of the electronic equipment with the flexible display screen, so that the different areas of the screen cannot generate large display difference, and the user is prevented from generating visual errors when the screen is unfolded for use.

Description

Screen calibration method, device, electronic device and storage medium

technical field

The present application relates to the technical field of display screens, and in particular, to a screen calibration method, device, electronic device and storage medium.

Background technique

With the development of electronic device technology and the application of flexible display screens, there are more and more foldable electronic devices. Such electronic devices can be used folded or unfolded. Due to the difference in use time and brightness of various areas of the screen , resulting in a difference in the display effect of the entire screen when the screen is unfolded for use, which may easily cause visual errors to the user and cause discomfort to the eyes.

SUMMARY OF THE INVENTION

The purpose of the present application is to provide a screen calibration method, device, electronic device and storage medium, so as to prevent visual differences in different areas of the screen of the electronic device.

In a first aspect, an embodiment of the present application provides a method for calibrating a screen of an electronic device. The electronic device includes a display screen, and the display screen includes multiple display areas, and the multiple display areas can be selectively folded or unfolded relatively. The method includes: acquiring the brightness value of each display area; calculating the degree of dispersion of the brightness values of the plurality of display areas; when the degree of dispersion is greater than or equal to the dispersion threshold, adjusting the driving current of the plurality of display areas to the If the degree of dispersion does not exceed the discrete threshold, the adjusted driving current is used as the calibration current; the plurality of display areas are driven and displayed with the calibration current corresponding to each display area.

In a second aspect, an embodiment of the present application provides a screen calibration apparatus for an electronic device, the electronic device includes a display screen, and the display screen includes multiple display areas, and the multiple display areas can be selectively folded or unfolded relative to each other. The device includes an acquisition module, a calculation module, an execution module and a drive display module. The obtaining module is used to obtain the luminance values of multiple display areas. The calculation module obtains the degree of dispersion of the luminance values of the plurality of display areas according to the luminance values of the plurality of display areas. The execution module is configured to adjust the drive currents of the plurality of display areas when the discrete degree is greater than or equal to the discrete threshold, until the discrete degree does not exceed the discrete threshold, and use the adjusted drive current as a calibration current. The driving display module is used for driving and displaying the plurality of display areas with the calibration current corresponding to each display area.

In a third aspect, embodiments of the present application provide an electronic device. The electronic device includes a display screen, a processor, and a memory. The display screen includes multiple display areas, and the multiple display areas can be selectively folded or unfolded relative to each other; the processor and the display The screen is electrically connected; the memory is coupled to the processor; the memory stores instructions that, when executed by the processor, cause the processor to perform the above-described screen calibration method.

In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, where a program code is stored in the computer-readable storage medium, and the program code can be invoked by a processor to execute the above-mentioned screen calibration method.

The screen calibration method, device, electronic device and storage medium provided by the present application can process the screen of an electronic device with a flexible display screen, so that there will not be a large display difference between different areas of the screen, preventing users from expanding Visual error occurs when using.

These and other aspects of the present application will be more clearly understood in the description of the following embodiments.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present application more clearly, the following briefly introduces the drawings that are used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those skilled in the art, other drawings can also be obtained from these drawings without creative effort.

1 is a schematic structural diagram of an electronic device shown in the present application;

Fig. 2 is the display effect interface diagram of the electronic device shown in Fig. 1;

3 is a schematic structural diagram of another electronic device shown in this application;

Fig. 4 is the display effect interface diagram of the electronic device shown in Fig. 3;

5 is a flowchart of a screen calibration method for an electronic device provided by the first embodiment of the present application;

6 is an interface diagram when an electronic device according to the first embodiment of the present application performs screen calibration;

7 is a flowchart of a screen calibration method of an electronic device provided by a second embodiment of the present application;

FIG. 8 is a flowchart of step S260 in the second embodiment of the present application;

9 is a flowchart of a screen calibration method for an electronic device provided by a third embodiment of the present application;

10 is a block diagram of a screen processing apparatus for an electronic device provided by a fourth embodiment of the present application;

11 is a block diagram of a first acquisition module provided by the fourth embodiment of the present application;

12 is a block diagram of an execution module provided by the fourth embodiment of the present application;

13 is a block diagram of a second adjustment module provided by the fourth embodiment of the present application;

14 is a block diagram of another execution module provided by the fourth embodiment of the present application;

15 is a block diagram of another screen processing apparatus of an electronic device provided by the fourth embodiment of the present application;

16 is a structural block diagram of an electronic device provided by the fifth embodiment of the present application;

FIG. 17 is a structural block diagram of a storage medium provided by a sixth embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

With the rapid development of electronic devices (such as mobile terminals), more and more foldable electronic devices are provided with flexible display screens, and such electronic devices are usually provided with a continuous flexible display screen. The flexible display screen will gradually age with the prolongation of use time. At the same time, after the gradual aging, the display brightness of the flexible display screen will be affected. At the same time, some electronic devices have multiple independent display screens that can be selectively folded or unfolded relative to each other, and these independent display screens also have a situation where differences in brightness occur over time. The display screen can be various types of screens such as LCD screens, LED screens, and OLED screens.

FIG. 1 shows a foldable electronic device 100 , please refer to FIG. 1 , the electronic device 100 includes a housing assembly 20 and a display screen 30 . The display screen 30 includes a plurality of display areas 30a, and the plurality of display areas 30a may be two or more. As shown in FIG. 1 , the two display areas 30 a of the display screen 30 include a first display area 31 and a second display area 32 , and the first display area 31 and the second display area 32 can be selectively folded or folded relative to each other. Expanded, and the first display area and the second display area 32 form a continuous display screen 30 .

The housing assembly 20 includes a first housing 21 , a second housing 22 and a rotating connector 23 . The first housing 21 rotates relative to the second housing 22 through the rotating connector 23 . The first casing 21 and the second casing 22 are selectively folded or unfolded relative to each other. The first display area 31 is laid on the first casing 21 , and the second display area 32 is laid on the second casing 22 . The first display area 31 and the second display area 32 can be selectively rotated through the connecting piece 23 . Relatively folded or unfolded.

In some embodiments, when the first display area 31 and the second display area 32 are folded relative to each other, the first display area 31 and the second display area 32 may be close to each other, that is, the first display area 31 and the second display area 32 are adjacent, that is, the display screen 30 formed by the first display area 31 and the second display area 32 is located inside the electronic device 100 . In other embodiments, when the first display area 31 and the second display area 32 are folded relative to each other, the first display area 31 and the second display area 32 may be separated from each other, that is, the first display area 31 and the second display area 32 The display screen 30 formed by the display area 32 is located outside the electronic device 100 and serves as at least a part of the appearance surface of the electronic device 100 .

The areas of the first display area 31 and the second display area 32 may be equal or unequal. When the first display area 31 and the second display area 32 are equal, the first display area 31 and the second display area 32 may be axially symmetric along the rotating connecting member 23 .

During use, the electronic device 100 can be folded into a single screen (ie, the first display area 31 and the second display area 32) for separate use, or can be unfolded into a continuous display screen 30 for use. Preferences. When using a single screen, the user prefers to use the first display area 31 or the second display area 32, resulting in a large gap between the screen-on time of the first display area 31 and the second display area 32, resulting in the first display area 31 and the second display area 32. The display brightness of the display area 32 is different, so the display effect of the first display area 31 and the second display area 32 will be different. As shown in FIG. 2, the display effect of the second display area 32 is higher than that of the first display area 31. The effect is deeper, which means that the second display area 32 has been used for a longer time than the first display area 31, and the aging is heavier, and the display effect is deeper. When the user switches from the single-screen display to the expanded display state, the user may have a visual error and cause discomfort.

In some embodiments, referring to FIG. 3 , the display screen 30 of the electronic device may include a plurality of display areas 30a, wherein the plurality of display areas 30a may be three, four, five or more. The plurality of display areas 30a include a first display area 31, a second display area 32 and a third display area 33, wherein the first display area 31, the second display area 32 and the third display area 33 can be selectively folded or unfolded relative to each other . FIG. 2 shows the structure of the first display area 31 , the second display area 32 and the third display area 33 in a folded state. The first display area 31 , the second display area 32 and the third display area 33 form a continuous display screen 30.

Similarly, the user may use the first display area 31 , the second display area 32 and the third display area 33 separately, or they may expand into a continuous display screen 30 for use. When using a single screen, the user prefers to use the first display area 31 Or the second display area 32 or the third display area 33, resulting in a large difference in the screen-on time of the first display area 31, the second display area 32 and the third display area 33, resulting in the first display area 31, the second display area 32 and the display brightness of the third display area 33 are different, so that the display effects of the first display area 31 , the second display area 32 and the third display area 33 will be different. As shown in FIG. 4 , the display luminances of the first display area 31 , the second display area 32 and the third display area 33 are all different.

Therefore, the inventor proposes a screen calibration method, an apparatus, an electronic device, and a storage medium for an electronic device in the embodiments of the present application. The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

first embodiment

This embodiment provides a method for calibrating a screen of an electronic device, which can be applied to the electronic device as shown in FIG. 1 or FIG. 3 and used to calibrate the screen of the electronic device. Referring to Figure 5, the method may include the following steps:

S110: Obtain the display brightness of each display area.

The display brightness of the display area refers to the real-time display brightness of the display area when the display area is in a bright screen state. The display brightness of the display area can be obtained, for example, in the following manner: a light sensor is arranged below the flexible display screen, and the display brightness of the display area is obtained through the light sensor. In some embodiments, the display brightness of the display area can also be imaged by an external camera to acquire an image, and the display brightness of the display area can be acquired by processing the image. Alternatively, obtain the display brightness of the display area through an external light sensor.

In some embodiments, when multiple display areas are expanded into a planar state, the display brightness of each display area may be acquired separately or simultaneously. When obtaining the display brightness of the display area, the same standard proofs can be displayed in multiple display areas, and the standard proofs can be monochrome proofs, such as uniform red, blue, green or white monochrome proofs. Obtaining the display brightness through a single-color standard sample can keep the conditions for obtaining the display brightness of each display area consistent, and eliminate the difference in display brightness caused by the color distribution of the sample, which is more conducive to subsequent screen calibration.

In some embodiments, the display brightness of each display area will also have a difference. As shown in FIG. 6 , the first display area 31 itself also has a display brightness difference. At this time, when acquiring the display brightness of the first display area 31 , the average brightness of the first display area 31 can be obtained as the display brightness of the first display area. The average brightness of the first display area 31 may be an average value of the display brightness of each point in the first display area. In some embodiments, the measured value of the display brightness of each display area can be stored in the memory of the electronic device, and used to analyze the change trend of the display brightness value of each display area.

For example, the luminance value of the first display area is L1, the luminance value of the second display area is L2, the luminance value of the third display area is L3 . . .

S120: Calculate the degree of dispersion of the luminance values of the plurality of display areas, and determine whether the degree of dispersion is greater than or equal to a dispersion threshold.

The degree of dispersion refers to the degree of difference between the brightness values of each display area. The degree of dispersion can be measured by range, variance, interquartile range, standard deviation (Standard Deviation), mean deviation (Mean Deviation), coefficient of variation (Coefficient of Variation) , CV) and other parameters to characterize, that is, any one of the above parameters or their combination can be used as the discrete degree value. The variance refers to the square root of the arithmetic mean of the square of the difference between each display brightness value and its mean. The variance of the luminance value of each display area

Among them, r is the average value of the display brightness of each display area, that is, the average display brightness of each display area. Li refers to the display brightness of each display area, and N represents the number of display areas. The larger the variance, the more discrete the representative data, that is, the greater the difference between the brightness values of each display area.

The value of the degree of dispersion varies with the change of the display brightness of each display area, so the degree of dispersion of the display brightness of each display area will be updated at any time. At the same time, when the degree of dispersion of the brightness values of the multiple display areas is obtained, the average value r of the display brightness of each display area is also obtained.

It can be understood that, in some embodiments, a range can also be used to represent the degree of dispersion, and the range is equal to the difference between the maximum value of the luminance value and the minimum value of the luminance value in the luminance values of each display area. The larger the range, the greater the degree of dispersion, and the smaller the range, the smaller the degree of dispersion.

S130: When the discrete degree is greater than or equal to the discrete threshold, adjust the driving currents of the plurality of display areas until the discrete degree is less than or equal to the discrete threshold, and use the adjusted drive current as a calibration current.

The driving current refers to the current value of the display area during display. By setting the discrete threshold and comparing the discrete degree with the discrete threshold, the screen processing process can be controlled, and the calibration process is performed only when the discrete degree is greater than or equal to the discrete threshold. Avoiding frequent calibration of the screen by the electronic device can, on the one hand, save the power consumption of the calibration process, and on the other hand, will not take up too much time of the user.

The discrete thresholds can be preset and adjusted according to the degree of user-generated visual error. For example, when the difference between the discrete degree and the discrete threshold is 1, the user can perceive the difference in the display effect, and at this time, the discrete threshold can be set to 0.5-2. In some embodiments, users can set discrete thresholds by themselves to meet their own usage requirements.

When the degree of dispersion is greater than or equal to the discrete threshold, it means that the display brightness of each display area is relatively discrete, so the difference between the display brightness of each display area is large, and the user can easily perceive the display brightness difference between each display area, causing discomfort , then it is necessary to adjust and calibrate the display brightness of each display area. The calibration method is carried out by adjusting the driving current of each display area, and then increasing or decreasing the display brightness.

It can be understood that adjusting the driving currents of a plurality of display areas does not necessarily mean adjusting the driving currents of all the display areas. Taking the electronic device shown in FIG. 1 as an example, FIG. 6 shows an interface diagram during the calibration process of the electronic device. In some embodiments, the drive current of only one display area or two display areas may be adjusted, and in some embodiments, the drive current of all display areas may be adjusted. As long as it is ensured that the degree of dispersion of the display brightness of each display area after the adjustment is satisfied does not exceed the dispersion threshold.

In some embodiments, when adjusting the driving current of the display area, the driving current may be gradually increased or decreased in a uniform or non-uniform manner. A jumping adjustment method can also be used, that is, when adjusting the driving current of the display area, a stepwise increase or decrease is performed, and the adjustment effect of this adjustment method will be faster. In some embodiments, the adjustment range of raising or lowering may be preset, and during adjustment, the adjustment is performed according to the preset adjustment range. When adjusting, it can be performed by adjusting multiple display areas at the same time, for example, adjusting the driving currents of all display areas at the same time. It can also be adjusted in sequence, that is, after the adjustment of one display area is completed, the next display area can be adjusted.

When the adjusted discrete degree does not exceed the discrete threshold, the adjusted driving current may be stored as a calibration current. It can be understood that the calibration current can be stored locally in the electronic device or stored in the server.

As an example, the electronic device shown in FIG. 3 is taken as an example for description. The initial display luminances of the first display area 31 , the second display area 32 and the third display area 33 are L11 , L21 and L31 respectively, and the corresponding driving currents are I11 , I21 and I31 . After adjustment, the display brightness of the first display area 31, the second display area 32 and the third display area 33 are L12, L22 and L32 respectively, and the drive currents corresponding to the adjusted display brightness are I21, I22 and I32. At this time, the adjusted driving currents I21, I22 and I32 are stored as calibration currents.

It can be understood that, when adjusting the driving currents of multiple display areas, the driving currents of all display areas are not necessarily adjusted. Therefore, in some embodiments, I11 may be the same as I21, I21 may be the same as I22, and I31 may also be Same as I32.

S140: Drive and display the plurality of display areas with a calibration current corresponding to each of the display areas.

When the electronic device is used next time, the stored calibration current value can be used as the driving current to display multiple display areas, so that the discrete degree of the display brightness of each display area does not exceed the discrete threshold, and the user will not perceive each display area. difference between the display brightness.

In this embodiment, the display brightness of different display areas of the electronic device is acquired, the dispersion degree value between the display brightness of each display area is calculated, and when the dispersion degree is greater than or equal to the dispersion threshold, the calibration operation is performed on the screen, and then the screen is calibrated. The display brightness of each display area is adjusted to ensure that the difference of the display brightness of each display area is small. At the same time, since the degree of dispersion does not need to be controlled very small, the adjustment amount of the driving current of each display area is not large, and the influence on the service life of each display area is small.

Second Embodiment

This embodiment provides a method for calibrating a screen of an electronic device, which can be applied to the electronic device as shown in FIG. 1 or FIG. 3 and used to calibrate the screen of the electronic device. Referring to Figure 7, the method may include the following steps:

S210: Display a standard sample in each of the display areas with the same driving current, and obtain the brightness value of each of the display areas.

Among them, the standard sample refers to a special sample used to obtain display brightness, and the standard sample can be a single-color sample or a multi-color sample. Drive all display areas to display with the same drive current, and display the same standard sample, so that the obtained display brightness value of each display area will be more objective. The obtained brightness value is related to the quality of the display area, which can be more It is helpful to evaluate whether the flexible display needs to be calibrated.

S220: Calculate the degree of dispersion of the luminance values of the plurality of display areas, and determine whether the degree of dispersion is greater than or equal to a dispersion threshold.

S230: When the degree of dispersion is greater than or equal to the dispersion threshold, reduce the drive current of the display area with the largest brightness value until the display brightness of the display area with the largest brightness value is not lower than the average of the plurality of display areas brightness.

When the degree of dispersion is greater than or equal to the discrete threshold, it means that the brightness values of each display area are relatively discrete. At this time, by adjusting the brightness value of the display area with the largest difference from the average value r of the brightness values of each display area, the reduction can be achieved more quickly. The purpose of discrete degree. In this case, the luminance value of the display area with the largest luminance value may be decreased, or the luminance value of the display area with the smallest luminance value may be increased. Since the flexible display screen has the characteristic of aging, it will gradually age with the increase of use time, thereby causing the display effect to decline. Therefore, by reducing the brightness value of the display area with high brightness value, the aging degree of the display area with the largest brightness value can be reduced, and its service life can be prolonged.

When the dispersion degree is greater than or equal to the dispersion threshold, the drive current of the display area with the largest luminance value is first reduced. That is, by reducing the drive current of the display area with the maximum luminance value, the luminance value of the display area with the maximum luminance value is reduced. At this time, the degree of dispersion of the luminance values of the plurality of display areas will be reduced, and further, the degree of dispersion may be adjusted so as not to exceed the dispersion threshold.

In the process of reducing the brightness value of the display area with the largest brightness value, the display brightness of the display area with the largest brightness value is adjusted at most to not be lower than the average brightness of the plurality of display areas. That is, when reducing the driving current of the display area with the largest brightness value, the brightness value of the display area is adjusted to the same as the average brightness r of multiple display areas at most. If it continues to decrease, the display brightness of this display area will change too much. This causes a large gap between the driving current of the display area and the driving current of other display areas, which is not conducive to maintaining the calibration result for a long time, and may cause the flexible display screen to need to be calibrated frequently.

It can be understood that, when adjusting the driving current of the display area with the largest brightness value, the brightness value of the display area can be adjusted so that the brightness value of the display area is greater than the average brightness of all the display areas. That is, the adjustment can be stopped at any time before the display brightness of the display area adjusted to the maximum brightness value is equal to the average brightness of all display areas. In some embodiments, the adjustment range can be preset, for example, a brightness value adjustment range threshold f1 can be set, so that when adjusting the driving current of the display area with the largest brightness value, the change amount of the brightness value of the display area does not exceed the brightness value adjustment The amplitude threshold value f1 and the brightness value adjustment amplitude threshold value f1 can be preset or defined by the user.

S240: Reacquire the degree of dispersion of the luminance values of the multiple display areas.

It can be understood that in the process of reducing the brightness value of the display area with the largest brightness value, the discrete degree value gradually decreases. At this time, the discrete degree value may be reduced to not exceed the discrete threshold value, or the discrete degree value is still greater than or equal to the threshold value. is equal to the discrete threshold. When adjusting the driving current of the display area with the largest brightness value, the degree of dispersion of the brightness values of the multiple display areas can be updated in real time.

S250: Detect whether the updated discrete degree exceeds the discrete threshold.

When it is detected that the updated dispersion degree exceeds the dispersion threshold, step S260 is performed, and if it is detected that the updated dispersion degree does not exceed the dispersion threshold, step S270 is performed.

S260: Adjust the driving current of the remaining display area.

Adjusting the drive current of the remaining display areas refers to adjusting the drive currents of the other display areas except the display area with the largest luminance value, so that the degree of dispersion does not exceed the threshold of dispersion. The adjustment method at this time may be the same as the aforementioned step S130. In some embodiments, the adjustment method may also refer to step S230, that is, the method of reducing the driving current of the display area with the largest luminance value in the remaining display areas is performed.

In this embodiment, referring to FIG. 8 , step S260 may be performed in the following manner.

Step S261: Increase the drive current of the display area with the smallest brightness value until the display brightness of the display area with the smallest brightness value is not higher than the average brightness of the plurality of display areas.

When the degree of dispersion is still greater than or equal to the dispersion threshold, the driving current of the display area with the smallest luminance value in the remaining display areas is first increased. That is, by increasing the drive current of the display area with the smallest luminance value, the luminance value of the display area with the largest luminance value is increased. At this time, the degree of dispersion of the luminance values of the plurality of display areas is also reduced, and further, the degree of dispersion may be adjusted so as not to exceed the dispersion threshold.

In the process of reducing the brightness value of the display area with the largest brightness value, the display brightness of the display area with the smallest brightness value is adjusted at most to be no higher than the average brightness of the plurality of display areas. That is, when the drive current of the display area with the smallest brightness value is increased, the brightness value of the display area is adjusted to the same as the average brightness r of multiple display areas at most. If it continues to increase, the display brightness of this display area will change too much. This causes a large gap between the driving current of the display area and the driving current of other display areas, which is not conducive to maintaining the calibration result for a long time, and may cause the flexible display screen to need to be calibrated frequently.

It can be understood that, when adjusting the driving current of the display area with the smallest brightness value, the brightness value of the display area can be adjusted so that the brightness value of the display area is smaller than the average brightness of all the display areas. That is, the adjustment can be stopped at any time until the display brightness of the display area with the smallest brightness value is equal to the average brightness of all display areas. In some embodiments, the adjustment range can be preset, for example, a brightness value adjustment range threshold f2 can be set, so that when adjusting the driving current of the display area with the smallest brightness value, the change amount of the brightness value of the display area does not exceed the brightness value adjustment The amplitude threshold f2 and the brightness value adjustment amplitude threshold f2 can be preset or defined by the user.

By adjusting the brightness of the display areas with the largest brightness value and the smallest brightness value, the brightness values of each display area are more concentrated, and by changing the discrete state, the degree of dispersion of the brightness values of each display area can be reduced more quickly. After the adjustment is completed, step S262 is executed.

S262: Reacquire the degree of dispersion of the luminance values of the multiple display areas.

S263: Detect whether the difference between the updated discrete degrees exceeds the discrete threshold.

If it is detected that the difference between the updated discrete degrees still exceeds the discrete threshold, step S264 is executed. If it is detected that the difference between the updated discrete degrees does not exceed the discrete threshold, step S270 is executed.

S264: Adjust the driving current of the remaining display area.

The remaining display area at this time refers to all the display areas except the display area with the largest luminance value and the display area with the smallest luminance value in the initial state. It can be understood that, at this time, for the manner of adjusting the driving current of the remaining display area, reference may be made to step S130 or step S230 or step S261.

S270: Use the adjusted driving current as the calibration current.

S280: Drive and display the plurality of display areas with a calibration current corresponding to each of the display areas.

In the method for calibrating the screen of an electronic device provided in this embodiment, when adjusting the driving current of each display area, the driving current of the display area with the largest brightness value is adjusted first. Extends the life of the display area with the highest brightness value. When the degree of dispersion of brightness values still fails to be reduced below the threshold of dispersion, the drive current of the display area with the smallest brightness value is adjusted, so that the brightness values of each display area rapidly change from a discrete state to a concentrated state. The number of display areas that need to be adjusted can be reduced, and the adjustment efficiency can be improved. At the same time, the human interference to each display area is reduced, the change of the brightness value of each display area is reduced, and the user experience is improved.

Third Embodiment

This embodiment provides a method for calibrating a screen of an electronic device, which can be applied to the electronic device as shown in FIG. 1 or FIG. 3 and used to calibrate the screen of the electronic device. Referring to Figure 9, the method may include the following steps:

S310: Detect the use state of the electronic device.

Detecting the use state of the electronic device refers to detecting the current working state of the electronic device. As an example, the working state may be idle, in use, charging, or other states, for example. Detect the usage of the electronic device, for example, it can be judged according to the usage status of the flexible display screen, the bright screen or the off screen, for example: when the flexible display screen is in the bright screen state, it can be determined that the electronic device is in the use state, and when the flexible display screen is in the When the screen is off, it can be determined that the electronic device is not in use. When the electronic device is connected to an external power source, it can be determined that the electronic device is in a charging state.

In some embodiments, the use state of the electronic device can also be determined according to the background data of the electronic device, for example, by obtaining the current processor running state and data link of the electronic device, and then obtaining the use state of the electronic device.

S320: Determine whether the use state of the electronic device satisfies a preset condition.

When the use state of the electronic device satisfies the preset condition, step S330 is executed. When the use state of the electronic device does not meet the preset condition, the subsequent screen calibration process is not performed.

Preset conditions can be set according to actual usage requirements. In some embodiments, the preset condition may include: the electronic device is not in use. That is, when the electronic device is in an unused state, it is determined that the use state of the electronic device satisfies the preset condition. Calibrating the electronic equipment when it is not in use will not affect the normal use of the user, and maximize the normal use of the user.

Judging whether the electronic device is not in use, for example, it can be judged according to the use status of the flexible display screen, bright screen or off screen, for example: when the flexible display screen is in the bright screen state, it can be determined that the electronic device is in use state, when the flexible display When the screen is in the screen-off state, it can be determined that the electronic device is not in use. In some embodiments, the use state of the electronic device can also be determined according to the background data of the electronic device, for example, whether the electronic device is in the use state can be obtained by obtaining the processor running state and data link of the current electronic device. .

In some embodiments, the preset condition may include: the clock of the electronic device is between the first preset time point and the second preset time point. The clock of an electronic device refers to a clock that comes with the electronic device or a clock that is obtained when the electronic device is connected to the Internet. That is, when the electronic device is within a specific time period, the calibration process is performed. The first preset time point and the second preset time point can be any time point. In some embodiments, the first preset time point and the second preset time point can be preset in the electronic device, or can be set by the user. Define settings. For example, the first preset time point may be 0-2 in the morning (0:00-2:00), and the second preset time may be 4-6 in the morning (4:00-6:00). At this time, the user While resting or sleeping, the calibration process will not affect normal use.

Since the screen needs to be lit during the screen calibration process, more power needs to be consumed, so further, the preset condition may further include: the remaining power of the electronic device is greater than or equal to a power threshold, or the electronic device The device is connected to an external power supply. In this way, it is ensured that there is enough power for the calibration process to use during the calibration process. Avoid taking up too much power due to the calibration process and affecting the normal use of the user. The power threshold may be 50% or more of the power supply capacity of the electronic device, and the external power supply may be a mobile power supply or a household AC power supply or other power supplies. When the remaining power of the electronic device is greater than or equal to the power threshold, or when the electronic device is connected to an external power supply, the power consumption required for the electronic device to perform the calibration process can be guaranteed, so that the entire calibration process can be performed, and at the same time, no Unnecessary effects of the user's use of other functions of the electronic device.

S330: Display a standard sample in each of the display areas with the same driving current, and acquire the brightness value of each of the display areas.

S340: Calculate the degree of dispersion of the luminance values of the multiple display areas, and determine whether the degree of dispersion is greater than or equal to a dispersion threshold.

S350: When the dispersion degree is greater than or equal to the dispersion threshold, obtain the average value of the luminance values of the multiple display areas.

The average value of the luminance values can be directly obtained by calculation, and the average value of the luminance values of each display area is r=L11+L21+...+Ln1/n. That is, it is equal to the arithmetic mean of the luminance values of each display area.

S360: Adjust the driving current of each of the display areas so that the brightness value of each of the display areas reaches the average value.

In this embodiment, the discrete degree value does not exceed the discrete threshold value by directly adjusting the driving current of each display area. Specifically, the driving current of each display area is adjusted so that the luminance value of each display area reaches the average value r of the luminance values. That is, after the adjustment is completed, the display brightness values of each display area are equal, and at this time, the degree of dispersion of the display brightness values of each area is reduced to 0.

The advantage of this adjustment method is that the display brightness of each display area can be adjusted to the exact same form, and the user cannot feel the difference in the display effect at all. At the same time, since the degree of dispersion is reduced to 0, the user can use it for a long period of time without having to perform screen calibration and maintain the continuity of use.

S370: Use the adjusted drive current as the calibration current.

S380: Drive and display the plurality of display areas with a calibration current corresponding to each of the display areas.

The screen calibration method provided in this embodiment can quickly calibrate each display area, so that the display brightness values of each display area are consistent, and the display brightness difference between the display areas is eliminated, and the user experience is improved. At the same time, by detecting the use state of the electronic device before calibration, the calibration process of the screen may not affect the normal use of the user.

Fourth Embodiment

Referring to FIG. 10 , this embodiment provides a screen calibration apparatus 400 of an electronic device, wherein the screen calibration apparatus 400 can be applied to the electronic device 100 shown in FIG. 1 or FIG. 3 .

The screen calibration apparatus 400 includes a first acquisition module 410 , a calculation module 420 , an execution module 430 and a first drive display module 440 .

The first obtaining module 410 is configured to obtain luminance values of multiple display areas. In some embodiments, referring to FIG. 11 , the first obtaining module 410 may include a second driving display module 411 and a brightness obtaining module 412 , wherein the second driving display module 411 is configured to use the same driving current in each of the display areas Displays the standard sample. The brightness obtaining module 412 is configured to obtain the brightness value of each display area when the standard proof is displayed in the display area.

The calculation module 420 obtains the degree of dispersion of the brightness values of the multiple display areas according to the brightness values of the multiple display areas.

The execution module 430 is configured to adjust the driving current of the plurality of display areas when the discrete degree is greater than or equal to the discrete threshold, until the discrete degree does not exceed the discrete threshold, and store the adjusted drive current as a calibration current .

In some embodiments, referring to FIG. 12 , the execution module 430 may include a first adjustment module 431 , a second acquisition module 432 , a first detection module 433 and a second adjustment module 434 . The first adjustment module 431 is configured to reduce the drive current of the display area with the largest brightness value, and the display brightness of the display area with the largest brightness value is not lower than the average brightness of the plurality of display areas. The second obtaining module 432 is configured to re-acquire the degree of dispersion of the luminance values of the plurality of display areas. The first detection module 433 is configured to detect whether the updated discrete degree exceeds the discrete threshold. The second adjustment module 434 is used to adjust the driving current of the remaining display area.

In some embodiments, referring to FIG. 13 , the second adjustment module 434 may include a third adjustment module 4341 , a third acquisition module 4342 , a second detection module 4343 and a fourth adjustment module 4344 . Wherein, the third adjustment module 4341 is used to increase the drive current of the display area with the smallest brightness value. The third obtaining module 4342 is configured to re-acquire the discrete degree of the luminance values of the plurality of display areas. The second detection module 4343 is configured to detect whether the difference between the updated discrete degrees exceeds the discrete threshold. The fourth adjustment module 4344 is used to adjust the driving current of the remaining display area.

In some embodiments, referring to FIG. 14 , the execution module 430 may include a fourth obtaining module 435 and a fifth adjusting module 436 , where the fourth obtaining module 435 is configured to obtain the average value of the luminance values of the plurality of display areas. The fifth adjustment module 436 is configured to adjust the driving current of each of the display areas, so that the brightness value of each of the display areas reaches the average value.

The first driving display module 440 is used for driving and displaying a plurality of display areas with the calibration current corresponding to each display area.

In some embodiments, referring to FIG. 15 , the screen calibration apparatus 400 may further include a state detection module 450 and a preset condition determination module 460, wherein the state detection module 450 is used to detect the use state of the electronic device. The preset condition judgment module 460 is used to judge whether the use state of the electronic device satisfies the preset condition. When the preset condition determination module 460 determines that the use state of the electronic device satisfies the preset condition, the drive display module drives and displays the plurality of display areas with the calibration current corresponding to each display area.

It should be noted that the apparatus embodiments in the present application correspond to the foregoing method embodiments, and the specific principles in the apparatus embodiments may refer to the content in the foregoing method embodiments, which will not be repeated here.

Fifth Embodiment

Referring to FIG. 16 , this embodiment provides an electronic device 100 , and the aforementioned screen processing method of the electronic device can be applied to the electronic device 100 of this embodiment. The electronic device 100 includes a display screen 30 and one or more (only one shown in the figure) processors 102 and a memory 104 coupled to each other.

The display screen 30 is electrically connected to the processor 102, and in this embodiment, the display screen 30 is a continuous flexible display screen and is laid on the housing assembly 20. It can be understood that in other embodiments, the display screen 30 It can also be composed of multiple independent display screens.

Wherein, the memory 104 stores a program that can execute the content in the foregoing embodiments, and the processor 102 can execute the program stored in the memory 104 .

The processor 102 may include one or more processing cores. The processor 102 uses various interfaces and lines to connect various parts of the entire mobile terminal 100, and executes by running or executing the instructions, programs, code sets or instruction sets stored in the memory 104, and calling the data stored in the memory 104. Various functions of the mobile terminal 100 and processing data. Optionally, the processor 102 may use at least one of a digital signal processing (Digital Signal Processing, DSP), a Field-Programmable Gate Array (Field-Programmable Gate Array, FPGA), and a Programmable Logic Array (Programmable Logic Array, PLA) implemented in hardware. The processor 102 may integrate one or a combination of a central processing unit (Central Processing Unit, CPU), a graphics processing unit (Graphics Processing Unit, GPU), a modem, and the like. Among them, the CPU mainly handles the operating system, user interface and application programs, etc.; the GPU is used for rendering and drawing of the display content; the modem is used to handle wireless communication. It can be understood that, the above-mentioned modem may not be integrated into the processor 102, and is implemented by a communication chip alone.

The memory 104 may include random access memory (Random Access Memory, RAM), or may include read-only memory (Read-Only Memory). Memory 104 may be used to store instructions, programs, codes, sets of codes, or sets of instructions. The memory 104 may include a stored program area and a stored data area, wherein the stored program area may store instructions for implementing the operating system, instructions for implementing at least one function (such as a touch function, a sound playback function, an image playback function, etc.) , instructions for implementing the following method embodiments, and the like. The storage data area may also store data (such as phone book, audio and video data, chat record data) created by the electronic device 100 during use.

In some embodiments, the electronic device 100 may further include a light sensor 106 (Light-Sensor), and the light sensor 106 may be one or more (only one is shown in the figure). The light sensor 106 is used to acquire the display brightness of the first display area 31 and the second display area 32 , and the light sensor 106 is disposed below the display screen 30 . In some embodiments, a plurality of light sensors 106 may be evenly distributed under the first display area 31 and the second display area 32 , and independently acquire the display brightness of the first display area 31 and the display brightness of the second display area 32 . The light sensor 106 is electrically connected to the processor 102, and can send the acquired display brightness data of the first display area 31 and the display brightness data of the second display area 32 to the processor 102 for processing.

It is understood that the electronic device 100 in the present application may be a mobile phone or smart phone (eg, iPhone TM based, Android TM based phone), portable gaming device (eg Nintendo DS TM, PlayStation Portable TM, Gameboy Advance TM, iPhone™), laptops, PDAs, portable Internet devices, music players, and data storage devices, other handheld devices and devices such as watches, headphones, pendants, earphones, etc., the electronic device 100 may also be other wearable devices (eg, , such as electronic glasses, electronic clothing, electronic bracelets, electronic necklaces, electronic tattoos, head mounted devices (HMDs) of electronic devices 100 or smart watches.

The electronic device 100 may also be any of a plurality of electronic devices 100 including, but not limited to, cellular phones, smart phones, other wireless communication devices, personal digital assistants, audio players, other media players, music Recorders, VCRs, Cameras, Other Media Recorders, Radios, Medical Equipment, Vehicle Transportation Instruments, Calculators, Programmable Remote Controls, Pagers, Laptops, Desktops, Printers, Netbooks, Personal Digital Assistants (PDAs) , Portable Multimedia Players (PMP), Moving Picture Experts Group (MPEG-1 or MPEG-2) Audio Layer 3 (MP3) players, portable medical devices and digital cameras and combinations thereof.

Sixth Embodiment

Referring to FIG. 17 , a structural block diagram of a computer-readable storage medium provided by an embodiment of the present application. The computer-readable medium 800 stores program codes, and the program codes can be invoked by the processor to execute the methods described in the above method embodiments.

The computer readable storage medium 800 may be an electronic memory such as flash memory, EEPROM (Electrically Erasable Programmable Read Only Memory), EPROM, hard disk, or ROM. Optionally, the computer-readable storage medium 1100 includes a non-transitory computer-readable storage medium. Computer readable storage medium 800 has storage space for program code 810 to perform any of the method steps in the above-described methods. These program codes can be read from or written to one or more computer program products. Program code 810 may be compressed, for example, in a suitable form.

The above descriptions are only preferred embodiments of the present application, and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included within the protection scope of this application.

Claims (13)

1. A method for calibrating a screen of an electronic device, characterized in that the electronic device comprises a display screen, the display screen comprises a plurality of display areas, the plurality of display areas can be selectively folded or unfolded relatively, the Methods include: Get the brightness value of each display area; calculating the degree of dispersion between the luminance values of the plurality of display areas,; When the discrete degree is greater than or equal to the discrete threshold, adjusting the drive currents of the plurality of display areas until the discrete degree is less than or equal to the discrete threshold, and using the adjusted drive current as a calibration current; The plurality of display areas are driven and displayed with a calibration current corresponding to each of the display areas. 2. The method according to claim 1, wherein the adjusting the driving current of the plurality of display areas comprises: reducing the drive current of the display area with the largest brightness value until the display brightness of the display area with the largest brightness value is not lower than the average brightness of the plurality of display areas; Reacquiring the degree of dispersion of the luminance values of the plurality of display areas; detecting whether the updated discrete degree exceeds the discrete threshold; If so, adjust the driving current of the remaining display area. 3. The method according to claim 2, wherein the adjusting the driving current of the remaining display area comprises: increasing the drive current of the display area with the smallest brightness value until the display brightness of the display area with the smallest brightness value is not higher than the average brightness of the plurality of display areas; Reacquiring the degree of dispersion of the luminance values of the plurality of display areas; Detecting whether the difference between the updated discrete degrees exceeds the discrete threshold; If so, adjust the driving current of the remaining display area. 4. The method according to claim 1, wherein the adjusting the driving current of the display area comprises: obtaining the average value of the luminance values of the plurality of display areas, The driving current of each of the display areas is adjusted so that the luminance value of each of the display areas reaches the average value. 5. The method according to claim 1, wherein the acquiring the luminance value of each display area comprises: A standard sample is displayed in each of the display areas with the same driving current, and the brightness value of each of the display areas is obtained. 6. The method according to any one of claims 1-5, wherein before acquiring the luminance value of each of the display areas, the method further comprises: detecting the use status of the electronic device; judging whether the use state of the electronic device satisfies a preset condition, If so, display a standard sample in each of the display areas with the same driving current. 7. The method according to claim 6, wherein the preset condition comprises: the electronic device is not in use. 8 . The method according to claim 6 , wherein the preset condition comprises: the clock of the electronic device is between a first preset time point and a second preset time point. 9 . The method according to claim 7 or 8, wherein the preset condition further comprises: the remaining power of the electronic device is greater than or equal to a power threshold, or the electronic device is connected to an external power supply. 10. An apparatus for calibrating a screen of an electronic device, wherein the electronic device comprises a display screen, the display screen comprises a plurality of display areas, and the plurality of display areas can be selectively folded or unfolded relative to each other, and the The device includes: an acquisition module, configured to acquire the luminance values of the multiple display areas, a calculation module, for obtaining the degree of dispersion of the luminance values of the plurality of display areas according to the luminance values of the plurality of display areas; an execution module, configured to adjust the drive currents of the plurality of display areas when the discrete degree is greater than or equal to a discrete threshold, until the discrete degree does not exceed the discrete threshold, and use the adjusted drive current as a calibration current; The driving display module is used for driving and displaying the plurality of display areas with the calibration current corresponding to each of the display areas. 11. An electronic device, characterized in that, comprising: a display screen, the display screen includes a plurality of display areas, and the plurality of display areas can be selectively folded or unfolded relatively; a processor, the processor is electrically connected to the display screen; a memory; the memory is coupled to the processor; the memory stores instructions that, when executed by the processor, cause the processor to perform the method of any of claims 1-9. 12. The electronic device according to claim 11, wherein the electronic device further comprises: The light sensor is arranged under the display screen and is electrically connected with the processor. 13. A computer-readable storage medium, wherein a program code is stored in the computer-readable storage medium, and the program code can be invoked by a processor to execute any one of claims 1-9 Methods.