WO2023020258A1 - Crease compensation method and apparatus, electronic device, and storage medium - Google Patents

Abstract

A crease compensation method and apparatus, an electronic device, and a storage medium. The crease compensation method is applied to an electronic device. The electronic device comprises a foldable screen. The crease compensation method comprises: obtaining at least one among a crease area of a screen and an adjacent area of the crease area to serve as a target area of a pixel value to be adjusted (S110); and obtaining an adjustment coefficient of a pixel value corresponding to the target area (S120); and after adjusting the pixel value of the target area on the basis of the adjustment coefficient, the brightness of the crease area matches with that of the adjacent area (S130). A crease can be compensated when the screen is in a folded state, thereby improving the display effect.

Description

Crease compensation method, device, electronic device and storage medium

Cross References to Related Applications

This application claims priority to Chinese application No. 202110961498.8 filed on August 20, 2021, which is hereby incorporated by reference in its entirety for all purposes.

technical field

The present application relates to the technical field of electronic equipment, and more specifically, to a crease compensation method, device, electronic equipment, and storage medium.

Background technique

Electronic devices, such as mobile phones and tablet computers, have become one of the most commonly used consumer electronic products in people's daily life. A display screen is a part of an electronic device for displaying a user interface, and a flexible display screen can be implemented as a foldable display screen. In the related art, an electronic device with a foldable display screen can be in a folded state or an unfolded state. However, after the folding display is folded, creases are easily generated in the bending area, which affects the display effect of the folding display.

Contents of the invention

In view of the above problems, the present application proposes a crease compensation method, device, electronic equipment and storage medium.

In the first aspect, an embodiment of the present application provides a crease compensation method, which is applied to an electronic device, and the electronic device includes a foldable screen, and the method includes: acquiring the crease area of the screen and the crease At least one of the adjacent areas of the area is used as the target area of the pixel value to be adjusted; the adjustment coefficient of the pixel value corresponding to the target area is obtained; after the pixel value of the target area is adjusted based on the adjustment coefficient, the crease Regions are matched to the rendered brightness of the neighboring regions.

In the second aspect, the embodiment of the present application provides a crease compensation device, which is applied to an electronic device, and the electronic device includes a foldable screen. The device includes: a calibration area acquisition module, an adjustment coefficient acquisition module, and a pixel value adjustment module. module, wherein the calibration area acquisition module is used to acquire at least one of the crease area of the screen and the adjacent area of the crease area as the target area of the pixel value to be adjusted; the adjustment coefficient acquisition module uses After obtaining the adjustment coefficient of the pixel value corresponding to the target area; the pixel value adjustment module is used to adjust the pixel value of the target area based on the adjustment coefficient, the display brightness of the crease area and the adjacent area match.

In a third aspect, the embodiment of the present application provides an electronic device, including: a foldable screen; one or more processors; a memory; one or more application programs, wherein the one or more application programs are stored in The memory is configured to be executed by the one or more processors, and the one or more programs are configured to execute the crease compensation method provided in the first aspect above.

In the fourth aspect, the embodiment of the present application provides a computer-readable storage medium, where 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 first aspect. trace compensation method.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings that need to be used in the description of the embodiments will be briefly introduced below. 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 based on these drawings without any creative effort.

FIG. 1 shows a schematic structural view of an electronic device provided by the present application in a folded state.

FIG. 2 shows a schematic structural view of the electronic device provided by the present application in a partially unfolded state.

FIG. 3 shows another schematic structural view of the electronic device provided in this application in a partially unfolded state.

Fig. 4 shows a flowchart of a crease compensation method according to an embodiment of the present application.

Fig. 5 shows a flowchart of a crease compensation method according to another embodiment of the present application.

Fig. 6 shows a flowchart of a crease compensation method according to yet another embodiment of the present application.

FIG. 7 shows another schematic structural view of the electronic device provided in the present application in a partially unfolded state.

Fig. 8 shows a flowchart of a crease compensation method according to yet another embodiment of the present application.

Fig. 9 shows a flowchart of a crease compensation method according to yet another embodiment of the present application.

Fig. 10 shows a block diagram of a crease compensation device according to an embodiment of the present application.

Fig. 11 is a block diagram of an electronic device for executing a crease compensation method according to an embodiment of the present application.

Fig. 12 is a storage unit used to store or carry program codes for implementing the crease compensation method according to the embodiment of the present application according to the embodiment of the present application.

Detailed ways

In order to enable those skilled in the art to better understand the solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

With the development of science and technology and the improvement of human needs, the screen of mobile terminals is getting bigger and bigger, but the larger screen of mobile phones means that the size of mobile terminals will also become larger, which is convenient for users to operate and also reduces the convenience of carrying mobile terminals sex. Therefore, the folding display realized by the flexible display is produced.

Among them, flexible screens have attracted much attention due to their unique characteristics and huge potential. Compared with traditional screens, flexible screens have the characteristics of strong flexibility and bendability, which can reduce the degree of accidental damage to equipment and have a much higher degree of durability. In addition, the flexible screen provides users with a new interaction method based on bendable characteristics, which can meet more needs of users for mobile terminals. The folding display realized by the flexible screen can be folded, so that the size of the screen becomes smaller, which is convenient for users to carry. However, when the screen is folded, it is easy to cause creases in the bending area. In related technologies, the mobile phone with a folding screen is mainly designed on the hardware structure to improve the problem of creases. However, after a large number of folding times, creases will occur, which will affect the display effect of the display screen.

In view of the above problems, the inventor proposes a crease compensation method, device, electronic device, and storage medium provided by the embodiments of the present application, which can eliminate screen distortion by adjusting the pixel value of at least one of the crease area and the adjacent area. The creases generated by folding can affect the display effect and improve the display effect of the screen. Wherein, the specific crease compensation method will be described in detail in the following embodiments.

In order to describe the solution of the present application in detail, an application environment in the embodiment of the present application will be introduced below with reference to the accompanying drawings.

Please refer to FIG. 1 . FIG. 1 is an electronic device 100 provided by an embodiment of the present application. The electronic device 100 may be, but not limited to, electronic devices such as mobile phones, tablet computers, game consoles, smart wearable devices, and vehicle-mounted devices. The electronic device 100 of this embodiment will be described by taking a mobile phone as an example.

Please refer to FIG. 1 . FIG. 1 is an electronic device 100 provided in an embodiment of the present application. The electronic device 100 may include, but is not limited to, electronic devices such as mobile phones, tablet computers, game consoles, smart wearable devices, and vehicle-mounted devices. The electronic device 100 of this embodiment will be described by taking a mobile phone as an example.

The electronic device 100 includes a foldable housing assembly 110, a foldable screen 120 and an electronic assembly (not shown in the figure), the electronic assembly is arranged in the foldable housing assembly 110, and the screen 120 is laid on the foldable housing assembly 110 . The foldable housing assembly 110 is used to carry the screen 120 and protect the electronic components at the same time. The electronic components may, but are not limited to, include a central processing unit, memory, camera, receiver, fingerprint module, etc. The specific electronic components may not be limited in this embodiment of the application.

The foldable shell assembly 110 includes a first shell 111 , a second shell 112 and a hinge mechanism 113 , and the first shell 111 and the second shell 112 are respectively connected to two sides of the hinge mechanism 113 . The second housing 112 can be folded or unfolded relative to the first housing 111 through the rotating shaft mechanism 113, so that the foldable housing assembly 110 drives the screen 120 to fold or unfold. When the foldable housing assembly 110 and the screen 120 are superposed, the electronic The volume of the device 100 is relatively small, which is convenient for storage and portability.

The first housing 111 includes a first middle frame 1111 and a first cover 1112 . One side of the first middle frame 1111 is connected to the rotating shaft mechanism 113, which is used to carry part of the structure of the electronic assembly. The first cover 1112 covers the first middle frame 1111 . When the first casing 111 and the second casing 112 are stacked, the first cover 1112 is stacked with the second casing 112 , that is, the first cover 1112 is attached to the second casing 112 . The second housing 112 includes a second middle frame 1121 and a second cover 1122 . One side of the second middle frame 1121 is connected to the rotating shaft mechanism 113, which is used to carry a part of the structure of the electronic assembly. The second cover 1122 covers the second middle frame 1121 . When the first casing 111 and the second casing 112 are stacked, the second cover 1122 is stacked with the first cover 1112 , that is, the second cover 1122 is attached to the first cover 1112 .

The screen 120 is laid on the first housing 111 , the rotating shaft mechanism 113 and the second housing 112 in sequence. In this embodiment, the screen 120 is a flexible display. The screen 120 is bent or unfolded as the first casing 111 and the second casing 112 are turned over. The screen 120 is electrically connected to the electronic components, so that the electronic components can control the operation of the screen 120 .

Please refer to FIG. 1 and FIG. 2 at the same time. In this embodiment, the screen 120 includes a first display part 121 connected to the first casing 111, a second display part 122 connected to the second casing 112, and a first display part 122 connected to the first display. The display part 123 of the part 121 and the second display part 122 is bent. Wherein, the first display portion 121 corresponds to the first display area 124 , the second display portion 122 corresponds to the second display area 125 , and the bending display portion 123 corresponds to the bendable area 126 . The first display part 121 and the second display part 122 are folded or unfolded relative to the first casing 111 and the second casing 112 respectively. The bending display part 123 is bent or flattened along with the folding or unfolding of the first display part 121 and the second display part 122 . In some implementations, the first display part 121, the second display part 122 and the bending display part 123 can be an integrated structure, so that the screen 120 is an integral flexible display; or, in some other implementations, The bending display part 123 is a bendable flexible part, while the first display part 121 and the second display part 122 can be non-flexible parts, and the first display part 121 and the second display part 122 are opposite to each other through the bending display part 123 Collapse or unfold. In this embodiment, when the first housing 111 and the second housing 112 are stacked, the first display part 121 and the second display part 122 are away from each other, so that the electronic device 100 presents a structure of an outwardly folded screen, so that The user can also observe the display content of the screen 120 when it is folded, which improves the convenience of using the electronic device 100 .

In some other embodiments, when the screen 120 of the electronic device has an inward-folding screen structure, as shown in FIG. 3 , after the screen 120 is folded, the first display portion 121 and the second display portion 122 are in an inward-folding state. In addition, when the first housing 111 and the second housing 112 are superimposed, the first display part 121 and the second display part 122 are superimposed, so that the electronic device 100 presents an inwardly folded screen structure, so that the screen 120 Free from scratch damage.

It should be understood that the names of the above-mentioned first display part 121, second display part 122 and bending display part 123 are set for convenience of description only, and are not used as structural limitations of the screen 120. In actual application scenarios, the first A display part 121, a second display part 122 and a bending display part 123 may have no obvious boundaries, or the screen 120 may appear in other divided structures, for example, the screen 120 includes a first display part 121 and a The second display portion 122 of the display portion 121 , the first display portion 121 and the second display portion 122 can be rotated relative to each other to be folded or unfolded.

In this embodiment, the electronic device 100 may further include an image acquisition device 115 (see FIG. 1 and FIG. 2 ), and the image acquisition device 115 may be a camera. The image acquisition device 115 can be arranged on the first housing 111 or the second housing 112, or there are more than one camera, and the first housing 111 and the second housing 112 can be provided with a camera 115, as shown in the figure 2. Optionally, the image acquisition device 115 is a relatively retractable camera, so that the image acquisition device 115 can perform image acquisition on its screen to obtain an image including the screen.

In this embodiment, the electronic device 100 may further include an angle detection module 130 (see FIG. 1 ), the angle detection module 130 is used to detect the angle formed between the first casing 111 and the second casing 112, to determine the angle at which the screen 120 is folded. In some implementations, the angle detection module 130 can be a Hall angle sensor, which can be connected to any one of the first housing 111 , the second housing 112 or the rotating shaft mechanism 113 .

In some implementations, the electronic device 100 may further include two motion sensors 140 (see FIG. 1 ), and the two motion sensors 140 are respectively disposed on the first casing 112 and the second casing 111 to detect the first The movement state of the first casing 112 and the second casing 111 . The motion sensor 140 may include, but is not limited to, sensors such as a speed sensor, a gravity sensor, and an inertial measurement unit.

Based on the above-mentioned electronic device, an embodiment of the present application provides a crease compensation method, by adjusting the pixel value of at least one of the crease area and the adjacent area, so as to eliminate the influence of the crease caused by the folding of the screen on the display effect, Improve the display effect of the screen. The display control method of the embodiment of the present application will be introduced in detail below.

Please refer to FIG. 4 , which shows a schematic flowchart of a crease compensation method provided by an embodiment of the present application. In a specific embodiment, the crease compensation method is applied to the above-mentioned electronic device. The process shown in Figure 4 will be described in detail below, and the crease compensation method may specifically include the following steps:

Step S110: Acquiring at least one of the crease area of the screen and the adjacent area of the crease area as a target area of pixel values to be adjusted.

In the embodiment of the present application, when the electronic device corrects or compensates for the crease when the screen is in the display state, at least one of the crease area of the screen and the adjacent area of the crease area may be obtained as the target of the pixel value to be adjusted. area, so that after adjusting its pixel values, the rendering brightness of the crease area and its adjacent areas can be matched, so as to eliminate the influence of the crease on the display effect. Wherein, the acquired target area refers to the acquired pixel coordinates of all pixel points in the area. The crease area refers to the area where the crease is located on the screen, and the adjacent area of the crease area refers to the area within the target range adjacent to the crease area on the screen, and the target range may be a range composed of several pixels. For example, the adjacent area may be a boundary formed by pixels located N pixels away from the boundary of the crease area, and an area formed by the boundary of the crease area.

In some implementations, the electronic device can collect an image of the screen through the image collection device to obtain an image including the screen; by identifying the crease area of the collected image, after the crease area is identified, based on the crease area Get the neighbors of the crease area. After the electronic device acquires the crease area and the adjacent area of the screen, at least one of the crease area and the adjacent area may be used as a target area to be adjusted for pixel values. Wherein, the electronic device may use both the acquired crease area and the adjacent area as the target area for pixel value adjustment, or may use one of the crease area and the adjacent area as the target area for pixel value adjustment. It can be understood that since the image collected on the screen can be considered as the display effect of the screen seen by the user, the collected image can be used to identify the crease area and adjacent areas, and identify the target area whose pixel value is to be adjusted. Sure.

In a possible implementation manner, since the purpose of adjusting the pixel value of the target area is to make the user perceive that the brightness of the crease area matches the brightness of the adjacent area, the pixel value will be increased or decreased so that The rendering brightness of its pixels varies so that the brightness of the two matches. However, in the crease area and adjacent areas, if the brightness of the pixels in one of the areas is increased, the value of a certain color component of the pixels in the area that needs to be increased in brightness may have reached the maximum value, or after being increased The case where the value of the color component exceeds the maximum value. Therefore, when determining the target area of the pixel value to be adjusted based on the crease area and the adjacent area, the area that needs to be improved in brightness can be determined as the brightness enhancement area; if any color component value of the pixel in the brightness enhancement area reaches the maximum value, Or the difference between the maximum value of the color component and any color component is less than the set threshold, then only the area where the brightness needs to be reduced can be used as the area to be adjusted, that is, the crease area or the adjacent area is used as the area to be adjusted Target area of pixel value, reduce the pixel value of the target area so that the brightness of the crease area matches the brightness of the adjacent area; is less than the set threshold, then at least one of the crease area and the adjacent area can be used as the area to be adjusted for pixel values. In this case, the pixel value of one of the areas can be increased to increase the brightness of the area. At the same time, reduce the pixel value of another area to reduce the brightness of this area, so that the brightness of the two can be matched. It is also possible to increase the pixel value of only one of the areas to increase the brightness of this area. In order to match the brightness of the two, it is also possible to reduce the pixel value of only one of the regions to reduce the brightness of the region, so that the brightness of the two is matched.

In a possible implementation manner, the electronic device may also determine the brightness of the crease area and the adjacent area in the image based on the collected image, that is, determine the brightness of the two, so as to determine whether to perform crease compensation. Among them, the brightness of the crease area can be used as the first brightness, and the brightness of the adjacent area can be used as the second brightness. If the difference between the first brightness and the second brightness is greater than the target threshold, it means that the difference between the two brightnesses The difference is large, so crease compensation is required. In this case, the electronic device determines the target area of the pixel value to be adjusted based on the crease area and adjacent areas.

Through the above embodiments, it can be realized that at any folding angle of the screen of an electronic device, the crease at the folding angle can be compensated according to the actual crease area and the adjacent area, so as to eliminate the influence of the crease on the display effect .

In some other implementation manners, the electronic device may store the corresponding relationship between each folding angle and the crease area and the adjacent area, and the electronic device may store the pixel coordinates of the crease area and the adjacent area. When the electronic device needs to compensate the crease, it can obtain the folding angle in the current state, and determine the corresponding crease area and adjacent area based on the folding angle, and then determine the target of the pixel value to be adjusted based on the determined crease area and adjacent area area, so that the pixel value of the target area can be adjusted later, so that the rendering brightness of the crease area matches that of the adjacent area, thereby eliminating the influence of the crease on the display effect.

In this embodiment, the electronic device can store the brightness of the crease area and adjacent areas at various folding angles, and the electronic device can determine the crease area when determining the target area for pixel values to be adjusted based on the crease area and adjacent areas. and the brightness of the adjacent area; then, based on the brightness of the crease area and the adjacent area at the current folding angle, determine the target area of pixel values to be adjusted. For the manner of determining the target area of pixel values to be adjusted based on the brightness of the crease area and adjacent areas, reference may be made to the content of the previous embodiment.

Through the above embodiments, it can be realized that at any folding angle, the screen of the electronic device can compensate the creases at the folding angle according to the crease area and the adjacent area corresponding to the folding angle, so as to eliminate the impact of the crease on the display effect. Impact.

Step S120: Obtain the adjustment coefficient of the pixel value corresponding to the target area.

In the embodiment of the present application, after the electronic device determines the target area of the pixel value to be adjusted, it can also determine the adjustment coefficient of the pixel value corresponding to the target area, so that the pixel value of the target area can be adjusted based on the adjustment coefficient. , which can match the display brightness of the crease area of the screen with the adjacent area, so that the user can feel the brightness of the two matches.

In some implementations, if the electronic device determines the target area where the pixel value needs to be adjusted according to the image including the screen collected in real time, the electronic device can also determine the brightness of the crease area and the brightness of the adjacent area according to the image including the screen collected in real time. After the brightness, according to the brightness of the two, determine the adjustment coefficient of the pixel value corresponding to the target area. It can be understood that since the image collected on the screen can be considered as the display effect of the screen seen by the user, the collected image can be used to identify the brightness of the crease area and the adjacent area, so as to determine the pixel value of the target area. Adjust to make the brightness of the crease area and the adjacent area the same, so as to eliminate the influence of the crease on the display effect. Optionally, based on the correspondence between pixel values and brightness values, and according to the brightness of the crease area and adjacent areas, the electronic device can determine the adjustment coefficient that needs to be adjusted for the pixel value of the target area, so that the adjustment coefficient is used to adjust Match the brightness of the crease area to the adjacent area after the pixel value of the target area.

Optionally, when the electronic device determines the adjustment coefficient, if the target area is a crease area, the average brightness of pixels in the adjacent area may be used as the brightness of the adjacent area, and based on the brightness of each pixel in the crease area, and The brightness of the adjacent area is determined by using the above method to determine the adjustment coefficient for each pixel. After adjusting the pixel value of each pixel, the adjustment of the pixel value of the crease area is completed.

In other embodiments, if the electronic device determines the target area according to the corresponding relationship between each folding angle and the crease area and adjacent areas, the electronic device may also store adjustment coefficients for the pixel values of the target area at each folding angle, After adjusting the pixel values of the target area according to the adjustment factor, the crease area matches the brightness of the adjacent area.

In the embodiment of the present application, the brightness matching between the crease area and the adjacent area refers to the brightness matching between the crease area and the adjacent area, that is, the brightness matching perceived by the user. The matching of the two may be that the absolute value of the difference between the brightness of the crease area and the brightness of the adjacent area is within a preset range, that is, the difference between the two does not exceed the preset range, so that the user perceives the crease area It is not much different from the adjacent area, thereby eliminating the influence of creases on the display effect.

Step S130: After adjusting the pixel value of the target area based on the adjustment coefficient, the brightness of the crease area is matched with that of the adjacent area.

In the embodiment of the present application, after the electronic device acquires the adjustment coefficient of the target area and the corresponding pixel value, it can adjust the pixel value of the target area based on the adjustment coefficient, and after adjusting the pixel value of the target area, The display brightness of the crease area and its adjacent area is matched to eliminate the influence of the crease on the display effect.

In some embodiments, the electronic device adjusts the pixel value of the target area based on the adjustment coefficient, which may be based on the adjustment coefficient, and adjusts the pixel value of the target area of each frame displayed by the electronic device, so that the electronic device displays any When changing the content of the screen, it can eliminate the influence of creases on the display effect and improve the display effect.

The crease compensation method provided in the embodiment of the present application can adjust the pixel value of at least one of the crease area and the adjacent area, so that the brightness of the crease area and its adjacent area can be matched, so as to eliminate the crease caused by the folding of the screen. The impact of traces on the display effect, thereby improving the display effect of the screen.

Please refer to FIG. 5 , which shows a schematic flowchart of a crease compensation method provided by another embodiment of the present application. The crease compensation method is applied to the above-mentioned electronic equipment, and the flow shown in FIG. 5 will be described in detail below. The crease compensation method may specifically include the following steps:

Step S210: Obtain the folding angle of the screen.

In the embodiment of the present application, when the electronic device compensates for the crease of the screen, it can obtain the current folding angle of the screen, so as to determine the area where the pixel value is to be adjusted and the corresponding adjustment coefficient according to the current folding angle, so that Adjust the pixel value of the area where the pixel value is to be adjusted to realize the compensation of the crease under the current folding angle.

In some embodiments, the above-mentioned angle detection module can be set in the electronic device to detect the folding angle of the screen. Optionally, when the electronic device needs to compensate for the crease of the screen, it can control the angle detection module to detect the folding angle, so as to detect the current folding angle. It can be understood that in an electronic device provided with an angle detection module, since the screen is folded or unfolded along with the casing, the above-mentioned angle detection module for detecting the angle formed between the casings can be used to detect the folding of the screen angle.

In some other implementations, the electronic device can detect the impedance value of the variable impedance material provided on the bendable area of the screen to determine the angle formed between the display areas after the screen is folded, wherein the pressure on the above material is not At the same time, due to the piezoresistive effect, the resistance of the material is different. It can be understood that when the angles formed between the two display areas of the above-mentioned variable impedance material arranged in the bendable area of the screen are different, the pressure on the material is different, and the impedance value of the material is different. Therefore, According to the corresponding relationship between different angles and different impedance values, and the detected impedance values of the above-mentioned materials, the angle formed between the two display areas of the screen can be determined, that is, the folding angle of the screen can be obtained.

Of course, the specific manner of detecting the folding angle of the screen may not be limited in this embodiment of the present application.

Step S220: According to the first corresponding relationship between the folding angle of the screen and the screen area of the pixel value to be adjusted, obtain the screen area corresponding to the folding angle as the target area of the pixel value to be adjusted, the pixel value of the pixel value to be adjusted The screen area is at least one of a crease area of the screen and an adjacent area of the crease area.

In the embodiment of the present application, the electronic device may store a first corresponding relationship between the folding angle of the screen and the screen area whose pixel value is to be adjusted. Based on this, after acquiring the current folding angle of the screen, the electronic device may acquire the target area corresponding to the current folding angle according to the first correspondence. Wherein, in the first correspondence, the screen area corresponding to the folding angle of the screen to which the pixel value is to be adjusted is at least one of the crease area of the screen and the adjacent area of the crease area.

In some implementations, the screen area corresponding to the pixel value to be adjusted at different folding angles of the screen can be obtained by pre-testing the crease area and adjacent areas at different folding angles, and based on the obtained creases at different folding angles The area and the adjacent area determine the screen area corresponding to the pixel value to be adjusted for different folding angles. Wherein, the specific manner of obtaining the first corresponding relationship will be described in detail in subsequent embodiments.

Step S230: According to the second corresponding relationship between the folding angle of the screen and the adjustment coefficient, obtain the adjustment coefficient corresponding to the folding angle as the adjustment coefficient of the pixel value corresponding to the target area.

In the embodiment of the present application, the electronic device may also store a second corresponding relationship between the folding angle of the screen and the adjustment coefficient. Based on this, after obtaining the current folding angle of the screen, the electronic device can obtain the adjustment coefficient corresponding to the current folding angle according to the second corresponding relationship, so as to obtain the adjustment coefficient for adjusting the pixel value of the above-mentioned target area .

In some implementations, the corresponding adjustment coefficients of the screen at different folding angles can be obtained by pre-testing the crease area and adjacent areas at different folding angles, and based on the obtained values of the crease areas and adjacent areas at different folding angles Brightness, determine the adjustment coefficient for adjusting the pixel value of the target area, so that under different folding angles, after adjusting the pixel value of the target area according to the corresponding adjustment coefficient, the brightness of the crease area and its adjacent areas can be made match. Wherein, the specific manner of obtaining the second corresponding relationship will be described in detail in subsequent embodiments.

Step S240: After adjusting the pixel value of the target area based on the adjustment coefficient, the brightness of the crease area is matched with that of the adjacent area.

In the embodiment of the present application, reference may be made to the contents of the foregoing embodiments for step S240, and details are not repeated here.

The crease compensation method provided by the embodiment of the present application can determine the target area corresponding to the folding angle and the adjustment coefficient of the pixel value to be adjusted according to the current folding angle of the screen and according to the pre-stored correspondence, and then based on the adjustment coefficient The target area is adjusted so that the display brightness of the crease area and its adjacent area match, so as to eliminate the influence of the crease generated by the folding of the screen on the display effect, thereby improving the display effect of the screen. Moreover, it is possible to quickly compensate for creases at any folding angle, further improving the display effect.

Please refer to FIG. 6 , which shows a schematic flowchart of a crease compensation method provided in another embodiment of the present application. The crease compensation method is applied to the above-mentioned electronic equipment, and the process shown in FIG. 6 will be described in detail below. The crease compensation method may specifically include the following steps:

Step S310: displaying a test image when the electronic device is in a preset state.

Regarding the preset models in the foregoing embodiments, the embodiments of the present application also include methods for obtaining the above-mentioned first correspondence and the second correspondence. It is worth noting that the acquisition of the first correspondence and the second correspondence can be It is performed in advance, and each time the crease of the screen is compensated, the target area and the adjustment coefficient can be determined according to the first correspondence and the second correspondence, and then the pixel value of the target area can be adjusted. There is no need to obtain the first corresponding relationship and the second corresponding relationship every time the crease is compensated.

In the embodiment of the present application, when the electronic device acquires the first correspondence and the second correspondence, it can display a test image when the electronic device is in a preset state, so that after displaying the test image, the screen can be folded according to different folding angles. Display the situation, and determine the above first correspondence and the second correspondence.

In some implementations, the preset state may include: the electronic device is in the process of starting up. Understandably, when the electronic device is in the booting process, since the user does not actually use the electronic device, displaying a test image with a preset color at this time will not affect the user experience. Therefore, the above test image can be displayed when the electronic device is in the booting process, and the acquisition of the first corresponding relationship and the second corresponding relationship can be completed according to the subsequent steps, so that in the process of using the electronic device after starting up, it can be based on the electronic device. Fold angle to compensate for creases.

In some other implementation manners, the preset state may include: within a first time period after the electronic device is turned on. It can be understood that the electronic device displays the test image within the first period of time after it is turned on, and obtains the first correspondence and the second correspondence through subsequent steps, and can complete the first correspondence and the second correspondence after each startup. The acquisition of the second correspondence relationship can compensate for creases according to the folding angle of the electronic device during the subsequent use of the electronic device. Wherein, the specific value of the first duration may not be limited, for example, 3 minutes, 5 minutes, 8 minutes and so on.

In yet other implementations, the preset state may include: the electronic device has not been used within the second period of time. It can be understood that when the electronic device is not used within the second period of time, it may indicate that the user does not use the electronic device at this time, so the test image may be displayed, and the acquisition of the first correspondence and the second correspondence may be completed through subsequent steps, without affecting the user experience.

In still some implementation manners, the preset state may include: every time the screen of the electronic device is folded up to a preset number of times. It can be understood that the creases of the electronic device are mainly caused by the number of times of folding, and as the number of times of folding increases, the creases will also change, for example, the creases will become deeper. Therefore, each time the electronic device is folded up to a preset number of times, that is to say, each time a preset number of times of folding is performed, the test image is displayed, and the first corresponding relationship and the second corresponding relationship are obtained through subsequent steps, thereby realizing the The update of the first correspondence relationship and the second correspondence relationship enables accurate compensation of creases when the electronic device is used to compensate for creases.

Certainly, the specific preset state may not be limited. In addition, the preset state can also be a combination of the above embodiments, for example, when the electronic device is in the boot process, the electronic device is not used within the second period of time, and the folding times of the screen of the electronic device reach the preset number of times, satisfying any When one condition is executed, the test image is displayed, and the first corresponding relationship and the second corresponding relationship are obtained through subsequent steps.

In some embodiments, the test image is an image of a preset color, that is, the preset image can be a test image of a solid color, so when the image of the preset color is displayed, for the user, the crease area and the adjacent area of the screen Based on this, according to the rendering effect of the crease area and its adjacent area when the test image is actually displayed on the screen, the acquisition of the first corresponding relationship and the second corresponding relationship is completed. The specific color of the preset color may not be limited, for example, the preset color may be white, red, green, blue and so on.

Step S320: Obtain the images obtained by collecting images of the screen displaying the test image at different folding angles of the screen, and obtain screen images corresponding to multiple folding angles.

In the embodiment of the present application, after the electronic device displays the test image of the preset color, it can obtain the images obtained by collecting images of the screen at different folding angles, so as to obtain the crease area when the screen actually displays the test image and the presentation effect of its adjacent areas, and based on this, determine the above first correspondence and second correspondence.

In some implementation manners, the electronic device may output prompt information to prompt the user to control the screen at different screen angles. Optionally, since the electronic device is displaying a preset test image, the user may be prompted to slowly unfold the screen of the electronic device from a fully folded state to a fully unfolded state by means of a voice prompt; The screen of the device is slowly folded from a fully unfolded state to a fully folded state.

Wherein, the screen of the electronic device is in a fully folded state and in a fully unfolded state, that is, the folding angle between the display areas of the electronic device satisfies a corresponding angle condition. Optionally, the screen of the electronic device includes a first display area and a second display area, and the first display area and the second display area can be folded or unfolded relatively. After folding angle between the first display area and the second display area, if the angle formed between the first display area and the second display area is smaller than the set value, determine the state of the first display area and the second display area being relatively completely folded; if the first display area and the second display area are relatively completely folded When the angle formed between the second display areas is greater than the set value, it is determined that the first display area and the second display area are in a relatively fully unfolded state. The above-mentioned set value may be an angle value when the first display area and the second display area are nearly parallel, for example, the set value may be 0, 3, 5, etc.

In some implementations, the electronic device may include an image acquisition device, and the image acquisition device may be a camera. The electronic device can use its own image acquisition device to acquire images of the screen, so as to acquire screen images under different folding angles. Optionally, since the image capture device of the electronic device needs to capture screen images at different folding angles, the image capture device can be stretched and rotated relative to the surface of the screen, so that the stretching and rotation of the image capture device can be controlled. At least one, so that the screen is within the field of view of the image capture device, thereby capturing the screen image.

In some other implementation manners, when the electronic device is at different folding angles, other terminals may also complete the image acquisition of the screen. In this way, the screen can stay at each folding angle for a certain period of time, and other terminals will send the collected images to the electronic device after completing the image collection, thereby realizing the acquisition of screen images under different folding angles.

Step S330: Obtain the crease area and its adjacent area corresponding to each of the multiple folding angles based on the multiple screen images.

In the embodiment of the present application, after the electronic device obtains the corresponding screen images under multiple folding angles, it can obtain the crease area corresponding to each folding angle among the multiple folding angles, and the crease corresponding to each folding angle Adjacent areas of the area, so as to determine the above first correspondence and second correspondence according to the crease area and the adjacent area corresponding to each crease angle.

In some implementations, the electronic device can identify the crease area and adjacent areas at various folding angles by way of image recognition. Optionally, by processing the screen image into a grayscale image, and then setting the grayscale threshold to distinguish the crease area, and then based on the determined crease area, the adjacent area is cut out, and then the crease in the image is The area and the adjacent area are mapped to the screen to obtain the screen coordinate set of the pixels of the crease, that is, the crease area of the screen, and the screen coordinate set of the pixels of the adjacent area, that is, the adjacent area of the crease area of the screen. For example, please refer to FIG. 7 , the area A1 and the area A2 in the figure are the crease area, and the areas B1 and B2 are the adjacent areas of the crease area of the screen.

Optionally, the electronic device may pre-store a recognition model for recognizing the crease area and the adjacent area, and the recognition model may be a deep neural network, etc., and by inputting the screen image into the recognition model, the corresponding crease area and adjacent area. Certainly, the manner in which the electronic device determines the crease area and the adjacent area of the screen may not be limited. Of course, there are also situations where there is no crease area under some folding angles. At this time, it can be determined that no compensation for the crease is required under the folding angle, and the crease area and adjacent areas corresponding to the folding angle are stored as empty. So that when the electronic device determines that there is no crease area according to the first correspondence, it can know that the crease does not need to be compensated at present, that is, end the processing.

Step S340: Based on the brightness of the crease area in the screen image corresponding to each folding angle and the brightness of adjacent areas in the screen image corresponding to each folding angle, determine the pixel to be adjusted corresponding to each folding angle Values of the screen area, obtaining the corresponding relationship between each folding angle and the screen area of the pixel value to be adjusted as the first corresponding relationship.

In the embodiment of the present application, after the electronic device determines the crease area and the adjacent area under each folding angle, it may base on the brightness of the crease area in the screen image corresponding to each folding angle, and the screen image corresponding to each folding angle. The brightness of the adjacent area in the image determines the screen area corresponding to the folding angle whose pixel value is to be adjusted. It can be understood that since the screen image can be considered as the display effect of the screen seen by the user, the brightness of the crease area and adjacent areas in the screen image can be used to determine the target area of pixel values to be adjusted. Wherein, the brightness of the crease area and the brightness of adjacent areas may refer to average brightness.

In some implementations, since there is an increase in the rendering brightness of pixels in one of the areas in the crease area and adjacent areas, the value of a certain color component of the pixels in the area that needs to be increased in brightness may have reached the maximum value, Or the case where the increased color component value exceeds the maximum value. Therefore, when determining the screen area corresponding to the pixel value to be adjusted under each folding angle, the screen area under each folding angle and the area with relatively low brightness in the adjacent area can be determined, if the pixels in the area with relatively low brightness Any color component value of any color component satisfies the color component condition, then only the area with relatively high brightness is taken as the area to be adjusted, where the color component condition includes: the color component value reaches the maximum value, or the maximum value of the color component is equal to any The difference in color component values is less than the target threshold. Conversely, if the value of each color component of the pixel in the area with relatively low brightness does not reach the maximum value, or the difference between the maximum value of each color component and any color component value is not less than the target threshold, then the folded The trace area and the adjacent area are used as the area where the pixel value is to be adjusted, or one of them is used as the area where the pixel value is to be adjusted. For example, at the first folding angle, if the value of each color component of the pixel in the screen area and the adjacent area with relatively low brightness does not meet the color component condition, the screen area at the first folding angle and The adjacent area is used as the area where the pixel value is to be adjusted, or one of the screen area and the adjacent area under the first folding angle is used as the area where the pixel value is to be adjusted; if the pixels in the screen area and the adjacent area have relatively low brightness If any color component value satisfies the color component condition, then the area with relatively high brightness under the first folding angle is taken as the area to be adjusted for the pixel value.

In a possible implementation manner, when the electronic device uses one of them as the area to be adjusted, the area of the determined crease area can be obtained as the first area, and the area of the adjacent area as the second area; The first area and the second area; according to the comparison result, if the first area is larger than the second area, then the adjacent area can be used as the area to be adjusted pixel value; if the second area is larger than the first area, then the crease area can be used as the area to be adjusted An area for adjusting pixel values; if the first area and the second area are equal, either one can be used as an area to be adjusted for pixel values. In this way, it is possible to reduce the processing load when the electronic device adjusts the pixel value, and in addition, the number of pixels for adjusting the pixel value can be reduced, thereby reducing the influence on the color of the screen content itself.

In some implementation manners, the electronic device may obtain one of the crease area and the adjacent area with relatively higher brightness as the area to be adjusted in pixel value. Based on the brightness of the crease area in the screen image corresponding to each folding angle and the brightness of adjacent areas in the screen image corresponding to each folding angle, the electronic device determines the screen area corresponding to each folding angle to be adjusted, and obtains The corresponding relationship between a folding angle and the screen area whose pixel value is to be adjusted is used as the first corresponding relationship, which may include: if the brightness of the crease area in the screen image corresponding to the first target angle is greater than the adjacent area in the screen image corresponding to the first target angle , the crease area corresponding to the first target angle is used as the screen area corresponding to the pixel value to be adjusted corresponding to the first target angle, and the first target angle is any one of multiple folding angles; if the first target angle corresponds to The brightness of the adjacent area in the screen image corresponding to the first target angle is greater than the brightness of the crease area in the screen image corresponding to the first target angle, and the adjacent area corresponding to the first target angle is used as the screen area corresponding to the first target angle to adjust the pixel value. If the brightness of the two is equal, it is determined that the adjustment coefficient is 1, that is, there is no need to adjust the pixel value. In this embodiment, for each folding angle, the electronic device can determine the screen area where the pixel value is to be adjusted in the above manner, so that a corresponding relationship between the folding angle and the screen area where the pixel value is to be adjusted can be established.

In the above embodiments, when the absolute value of the difference between the brightness of the crease area and the adjacent area is greater than the preset brightness threshold, it may indicate that the crease is relatively serious. In this case, if the determined area to be adjusted For the adjacent area, the electronic device may also increase the area of the adjacent area, so that after adjusting the pixel values of the adjacent area, the influence of the crease can be effectively eliminated.

Step S350: Based on the brightness of the crease area in the screen image corresponding to each folding angle and the brightness of adjacent areas in the screen image corresponding to each folding angle, determine the adjustment coefficient corresponding to each folding angle, The corresponding relationship between each folding angle and the adjustment coefficient is obtained as the second corresponding relationship.

In the embodiment of the present application, after the electronic device determines the target area of the pixel value to be adjusted corresponding to each folding angle, it may also be based on the brightness of the crease area in the screen image corresponding to each folding angle, and the brightness of each folding angle Corresponding to the brightness of the adjacent area in the screen image, the adjustment coefficient corresponding to each folding angle is determined, and the corresponding relationship between each folding angle and the adjustment coefficient is obtained as the second corresponding relationship.

In some implementations, the electronic device can obtain the pixel value and the gamma value of the screen area corresponding to the pixel value to be adjusted corresponding to the second target angle, where the second target angle is any one of multiple folding angles; based on the second The ratio between the brightness of the crease area in the screen image corresponding to the target angle and the brightness of the adjacent area in the screen image corresponding to the second target angle; based on the pixel value, the gamma value and the ratio, obtain the corresponding The adjustment factor for the screen area whose pixel values are to be adjusted. In this way, the adjustment coefficient of the screen area corresponding to the pixel value to be adjusted corresponding to each folding angle can be obtained, so as to obtain the correspondence between each folding angle and the adjustment coefficient, and use this correspondence as the second correspondence. Among them, the electronic device can determine the adjustment coefficient according to the corresponding formula among the gamma value, pixel value and brightness value, as well as the actual pixel value, gamma value and ratio obtained above, so that the area of the pixel value to be adjusted The pixel values of are adjusted to match the brightness of the crease area to the adjacent areas.

Exemplarily, the test image shown above is white, and its RGB value is (255, 255, 255). If the region where the pixel value is to be adjusted is a crease region, the gamma value of any pixel in the crease region is γ. If the crease The brightness of the area is B, and any color component of the pixel value is D(b). According to the definition of Gamma (gamma value): (D(b)/255) ^γ = B; the brightness of the adjacent area is A, and the The pixel value of the crease area is adjusted to D(a) to make the crease area equal to the adjacent area. According to the definition of Gamma: (D(a)/255) ^γ = A; since the value of D(b) is 255, After dividing (D(a)/255) ^γ ＝A with the left part and right part of the formula (D(b)/255) ^γ ＝B respectively, we can get:

By substituting the gamma value and brightness ratio into the formula, D(a) can be calculated, and divided by D(b), the adjustment coefficient can be obtained. For example, if A is 254, B is 255, and γ is 2.2, then

Therefore, the adjustment coefficient can be obtained as: 254.544978/255=0.9982156.

Of course, the implementation manner of determining the adjustment coefficient may not be limited, and the adjustment coefficient may also be determined through other correspondences between pixel values and brightness values.

In the embodiment of the present application, after the electronic device acquires the above first correspondence and the second correspondence, it can store the first correspondence and the second correspondence, so that each time the crease is compensated, it can Based on the stored first correspondence relationship and the second correspondence relationship, after adjusting the pixel values of the corresponding area, the brightness of the crease area matches that of the adjacent area.

In some implementation manners, the electronic device may also update the first corresponding relationship and the second corresponding relationship every preset time interval. In this way, the electronic device can perform the acquisition process of the above first correspondence and the second correspondence at intervals of a preset period of time, so as to realize the update of the first correspondence and the second correspondence, thereby ensuring that the conversion is performed every time. Calibration can be performed effectively when compensating for traces.

Step S360: Obtain the folding angle of the screen.

Step S370: Obtain the target area corresponding to the folding angle according to the first corresponding relationship between the folding angle of the screen and the screen area whose pixel value is to be adjusted, and the screen area whose pixel value is to be adjusted is the crease of the screen region and at least one of the adjacent regions of the crease region.

Step S380: According to the second corresponding relationship between the screen folding angle and the adjustment coefficient, obtain the adjustment coefficient corresponding to the folding angle as the adjustment coefficient of the pixel value corresponding to the target area.

Step S390: After adjusting the pixel value of the target area based on the adjustment coefficient, the brightness of the crease area matches that of the adjacent area.

In the embodiment of the present application, reference may be made to the contents of the foregoing embodiments for steps S360 to S390, and details are not repeated here.

In the crease compensation method provided in the embodiment of the present application, after displaying a test image of a preset color, based on the collected screen images at different folding angles, the areas to be adjusted for pixel values at each folding angle are determined, as well as the corresponding adjustment coefficients, In this way, the corresponding relationship between the folding angle, the screen area where the pixel value is to be adjusted and the adjustment coefficient can be obtained in advance. When actually compensating for screen creases, the target area and the adjustment coefficient can be determined based on the stored correspondence and the actual folding angle, and then the target area can be adjusted based on the adjustment coefficient so that the brightness of the crease area and its adjacent areas Matching to eliminate the impact of creases generated by the folding of the screen on the display effect, thereby improving the display effect of the screen. Moreover, the crease can be quickly compensated at any folding angle, which further improves the display effect

Please refer to FIG. 8 . FIG. 8 shows a schematic flowchart of a crease compensation method provided in another embodiment of the present application. The crease compensation method is applied to the above-mentioned electronic equipment, and the flow shown in FIG. 8 will be described in detail below. The crease compensation method may specifically include the following steps:

Step S410: Display a test image.

In this embodiment of the present application, the electronic device may also display a test image each time the crease is compensated, so that after the test image is displayed, the target area of the pixel value to be adjusted and the adjustment coefficient are determined according to the display conditions of the screen.

In some implementations, the electronic device may display the test image after the screen is stably at a certain folding angle, that is, when the creases displayed on the screen are stable, and implement compensation for the creases through subsequent steps. Wherein, the test image can also be an image of a preset color, specifically a solid color test image, so when the test image is displayed, for the user, the display brightness of the crease area and the adjacent area of the screen should be consistent, based on this According to the rendering effect of the crease area and its adjacent areas when the test image is actually displayed on the screen, the crease compensation is completed. The specific color of the preset color may not be limited, for example, the preset color may be white, red, green, blue and so on.

Step S420: Obtain a target image obtained by image acquisition of the screen in the current folded state.

In the embodiment of the present application, after the electronic device displays the test image of the preset color, it can obtain the image obtained by image acquisition on the screen, so as to obtain the rendering effect of the crease area and its adjacent area when the screen actually displays the test image, To deal with creases accordingly. Similarly, the electronic device may collect images of the screen through its own image collection device or an image collection device of other terminals, so as to obtain a target image including the screen.

Step S430: Based on the target image, acquire a crease area of the screen and adjacent areas of the crease area.

In some implementations, the electronic device can identify the crease area and adjacent areas by means of image recognition. Optionally, by processing the target image into a grayscale image, and then setting the grayscale threshold to distinguish the crease area, and then based on the determined crease area, the adjacent area is cut out, and then the crease in the image is The area and the adjacent area are mapped to the screen to obtain the screen coordinate set of the pixels of the crease, that is, the crease area of the screen, and the screen coordinate set of the pixels of the adjacent area, that is, the adjacent area of the crease area of the screen. Optionally, the electronic device may be pre-stored with a recognition model for recognizing the crease region and adjacent regions, and the recognition model may be a deep neural network, etc., by inputting the target image into the recognition model, the corresponding crease region and adjacent area. Certainly, the manner in which the electronic device determines the crease area and the adjacent area of the screen may not be limited. Of course, there may also be cases where no crease area is identified according to the target image, and in this case, it can be determined that compensation for the crease is not needed, that is, the processing ends.

Step S440: Based on the brightness of the crease area in the target image and the brightness of the adjacent area in the target image, acquire at least one of the crease area and the adjacent area as a pixel value to be adjusted target area.

In this embodiment of the application, the electronic device may acquire at least one of the crease area and the adjacent area as the pixel value to be adjusted based on the brightness of the crease area in the target image and the brightness of the adjacent area in the target image. target area.

In some implementation manners, the electronic device may obtain one of the crease area and the adjacent area with relatively higher brightness as the area to be adjusted in pixel value. Wherein, if the brightness of the crease area in the target image is greater than the brightness of the adjacent area in the target image, the crease area is used as the target area for pixel values to be adjusted; if the The brightness of the adjacent area is greater than the brightness of the crease area in the target image, and the adjacent area is used as the target area for pixel values to be adjusted. If the brightness of the two is equal, it is determined that the adjustment coefficient is 1, that is, there is no need to adjust the pixel value.

In some other implementations, when the electronic device uses one of them as the screen area whose pixel value is to be adjusted, it can obtain the area of the determined crease area as the first area, and the area of the adjacent area as the second area; compare the first area and the second area; according to the comparison result, if the first area is larger than the second area, the adjacent area can be used as the area to be adjusted; if the second area is larger than the first area, the crease area can be used as the area to be adjusted An area of pixel values; if the first area is equal to the second area, either one can be used as an area of pixel values to be adjusted. In this way, it is possible to reduce the processing load when the electronic device adjusts the pixel value, and in addition, the number of pixels for adjusting the pixel value can be reduced, thereby reducing the influence on the color of the screen content itself.

Step S450: Based on the brightness of the crease area in the target image and the brightness of the adjacent area in the target image, determine an adjustment coefficient of the pixel value corresponding to the target area.

In the embodiment of the present application, after the electronic device determines the target area, it may also determine the adjustment coefficient of the pixel value corresponding to the target area based on the brightness of the crease area in the target image and the brightness of adjacent areas in the target image. For the manner of determining the adjustment coefficient, reference may be made to the implementation of step S350 in the foregoing embodiment. For example, the electronic device can obtain the pixel value and gamma value of the target area; based on the brightness ratio between the brightness of the crease area in the target image and the brightness of adjacent areas in the target image; based on the pixel value, gamma value and brightness ratio, Determines the adjustment factor for the pixel values corresponding to the target area.

Step S460: After adjusting the pixel value of the target area based on the adjustment coefficient, the brightness of the crease area matches that of the adjacent area.

In the embodiment of the present application, reference may be made to the contents of the foregoing embodiments for step S460, and details are not repeated here.

The crease compensation method provided in the embodiment of the present application can display a test image of a preset color each time the crease is compensated, and determine the target area of the pixel value to be adjusted and adjust the pixel value based on the screen image when the test image is displayed. coefficient, and then adjust the target area based on the adjustment coefficient, so that the display brightness of the crease area matches its adjacent area, so as to eliminate the impact of the crease caused by the folding of the screen on the display effect, thereby improving the display effect of the screen. Moreover, it is possible to quickly compensate for creases at any folding angle, further improving the display effect.

Please refer to FIG. 9 , which shows a schematic flowchart of a crease compensation method provided in yet another embodiment of the present application. The crease compensation method is applied to the above-mentioned electronic equipment, and the process shown in FIG. 9 will be described in detail below. The crease compensation method may specifically include the following steps:

Step S510: In response to a change in the folding angle of the screen, acquire a crease area of the screen or an adjacent area of the crease area as a target area for pixel values to be adjusted.

In the embodiment of the present application, when the folding angle of the screen of the electronic device changes, in response to the change, acquire the crease area of the screen or the adjacent area of the crease area as the target area of the pixel value to be adjusted, and the subsequent Steps, so that after adjusting the pixel value of the target area, the brightness of the crease area can be matched with that of the adjacent area, and the influence of the crease on the display effect can be eliminated. It can be understood that when the folding angle changes, the crease of the screen may also change, so the process of compensating for the crease of the screen can be implemented to eliminate the influence of the crease on the display effect under different folding angles.

In some implementations, in order to prevent the user from frequently folding the screen, the electronic device frequently performs crease compensation processing. Therefore, when the folding angle of the screen changes, the duration threshold may be reached when the folding angle does not change, for example, 1 Minutes, the crease area of the screen or the adjacent area of the crease area is acquired as the target area to be adjusted pixel value, and the subsequent steps, so that after adjusting the pixel value of the target area, the crease area and the adjacent area can be made brightness match.

Step S520: Obtain the adjustment coefficient of the pixel value corresponding to the target area.

Step S530: After adjusting the pixel value of the target area based on the adjustment coefficient, the brightness of the crease area matches that of the adjacent area.

In the embodiment of the present application, reference may be made to the contents of the foregoing embodiments for step S520 and step S530, and details are not repeated here.

In some implementation manners, the electronic device may also respond to the calibration operation for calibrating the crease, and perform acquiring the crease area of the screen or the adjacent area of the crease area as the target area of the pixel value to be adjusted, and the subsequent Steps, so that after adjusting the pixel value of the target area, the brightness of the crease area can be matched with that of the adjacent area, and the influence of the crease on the display effect can be eliminated. It is understandable that the crease performance may be different under different folding angles. Therefore, after the user perceives the crease on the screen, he can input a calibration operation for calibrating the crease to the electronic device, and then the electronic device responds to the calibration operation. The above processing is to eliminate the influence of creases on the display effect. Of course, the electronic device may also perform the above processing in other situations where the crease may change, so as to eliminate the influence of the crease on the display effect.

In some embodiments, the influence of creases can be eliminated, and the structure of folding water droplets can also be set to reduce the influence of creases. In addition, the rotating shaft that drives the folding of the screen can be set as a rotating shaft with a variable radius. By dynamically adjusting the radius and curvature of the bending area of the screen during the process of folding or unfolding the screen, the bending area is close to a circle, and the bending The force will be more uniform during the process, so as to avoid creases.

The crease compensation method provided by the embodiment of the present application can adjust the pixel value of at least one of the crease area and the adjacent area so that the brightness of the crease area and its adjacent area can match when the folding angle changes. , so as to eliminate the influence of creases caused by screen folding at different folding angles on the display effect, thereby improving the display effect of the screen.

Please refer to FIG. 10 , which shows a structural block diagram of a crease compensation device 400 provided by an embodiment of the present application. The crease compensation device 400 applies the above-mentioned electronic device, and the electronic device includes a foldable screen. The crease compensation device 400 includes: a calibration area acquisition module 410 , an adjustment coefficient acquisition module 420 and a pixel value adjustment module 430 . Wherein, the calibration area acquisition module 410 is used to acquire at least one of the crease area of the screen and the adjacent area of the crease area as the target area of the pixel value to be adjusted; the adjustment coefficient acquisition module 420 uses After obtaining the adjustment coefficient of the pixel value corresponding to the target area; the pixel value adjustment module 430 is configured to adjust the pixel value of the target area based on the adjustment coefficient, the presentation of the crease area and the adjacent area Brightness matching.

In some implementations, the calibration area acquiring module 410 can be used to: acquire the folding angle of the screen; and acquire the corresponding relationship between the folding angle and the first corresponding relationship between the folding angle of the screen and the screen area whose pixel value is to be adjusted. The screen area, as the target area of the pixel value to be adjusted, the screen area of the pixel value to be adjusted is at least one of the crease area of the screen and the adjacent area of the crease area; the adjustment coefficient acquisition module 420 is configured to: acquire an adjustment coefficient corresponding to the folding angle according to a second corresponding relationship between the folding angle of the screen and the adjustment coefficient, and use it as the adjustment coefficient of the pixel value corresponding to the target area.

As a possible implementation manner, the crease compensation device 400 may further include an image display module, a screen image acquisition module, a target area acquisition module, a first relationship acquisition module, and a second relationship acquisition module. The image display module is used to obtain the crease area of the screen or the adjacent area of the crease area as the target area of the pixel value to be adjusted, and before the acquisition of the adjustment coefficient of the pixel value corresponding to the target area , when the electronic device is in a preset state, a test image is displayed; the screen image acquisition module is used to acquire images acquired by the screen at different folding angles on the screen displaying the test image, and obtain multiple The screen images corresponding to the multiple folding angles; the target area acquisition module is used to acquire the crease area and its adjacent area corresponding to each of the multiple folding angles based on the screen images corresponding to the multiple folding angles; the first The relationship acquiring module is configured to determine the to-be-resolved area corresponding to each folding angle based on the brightness of the crease area in the screen image corresponding to each folding angle and the brightness of the adjacent area in the screen image corresponding to each folding angle. Adjust the screen area of the pixel value, and obtain the corresponding relationship between each folding angle and the screen area of the pixel value to be adjusted as the first corresponding relationship; the second relationship acquisition module is used to correspond to each folding angle based on the The brightness of the crease area in the screen image of the screen image, and the brightness of the adjacent area in the screen image corresponding to each folding angle, determine the adjustment coefficient corresponding to each folding angle, and obtain the adjustment coefficient of each folding angle and the adjustment The corresponding relationship of the coefficients is used as the second corresponding relationship.

Optionally, the first relationship acquisition module may be configured to: if the brightness of the crease area in the screen image corresponding to the first target angle is greater than the brightness of the adjacent area in the screen image corresponding to the first target angle, the first The crease area corresponding to the target angle is used as the screen area corresponding to the pixel value to be adjusted corresponding to the first target angle, and the first target angle is any one of the multiple folding angles.

The first relationship acquisition module may also be configured to: if the brightness of the adjacent area in the screen image corresponding to the first target angle is greater than the brightness of the crease area in the screen image corresponding to the first target angle, set the second An adjacent area corresponding to a target angle is used as a screen area corresponding to the first target angle for pixel values to be adjusted.

Optionally, the second relationship acquisition module may be used to: acquire the pixel value and the gamma value of the screen area corresponding to the pixel value to be adjusted corresponding to the second target angle, the second target angle being one of the plurality of folding angles Any folding angle; based on the ratio between the brightness of the crease area in the screen image corresponding to the second target angle and the brightness of the adjacent area in the screen image corresponding to the second target angle; based on the pixel value, the The gamma value and the ratio are used to obtain the adjustment coefficient of the screen area corresponding to the pixel value to be adjusted corresponding to the second target angle.

As a possible implementation manner, the test image is an image of a preset color.

As a possible implementation manner, the crease compensation apparatus 400 may further include a relationship updating module. The relationship updating module is configured to update the first corresponding relationship and the second corresponding relationship every preset time interval.

In some embodiments, the electronic device further includes an image acquisition device. The calibration area acquiring module may be used to: display a test image; acquire a target image acquired by the image acquisition device in the current folded state by acquiring an image of the screen; based on the target image, acquire the crease area of the screen and the An adjacent area of the crease area; based on the brightness of the crease area in the target image and the brightness of the adjacent area in the target image, at least one of the crease area and the adjacent area is acquired As the target area to adjust the pixel value. The adjustment coefficient acquisition module 420 is configured to: determine an adjustment coefficient of a pixel value corresponding to the target area based on the brightness of the crease area in the target image and the brightness of the adjacent area in the target image.

As a possible implementation manner, the calibration area acquisition module 410 acquires the crease area and the adjacent area based on the brightness of the crease area in the target image and the brightness of the adjacent area in the target image. At least one of the areas is used as the target area of the pixel value to be adjusted, which may include: if the brightness of the crease area in the target image is greater than the brightness of the adjacent area in the target image, using the crease area as A target area of pixel values to be adjusted; if the brightness of the adjacent area in the target image is greater than the brightness of the crease area in the target image, the adjacent area is used as the target area of pixel values to be adjusted.

As a possible implementation manner, the adjustment coefficient acquisition module 420 may be specifically configured to: acquire the pixel value and gamma value of the target area; A brightness ratio between the brightness of the adjacent regions in the image; based on the pixel value, the gamma value and the brightness ratio, determine an adjustment coefficient of the pixel value corresponding to the target region.

As a possible implementation manner, the test image is an image of a preset color.

In some implementations, the calibration area acquiring module 410 may be configured to: in response to a change in the folding angle of the screen, perform the acquiring the crease area of the screen or the adjacent area of the crease area as pixels to be adjusted The target area for the value.

In some implementations, the calibration area acquisition module 410 may be configured to: in response to the calibration operation for calibrating the crease, perform the acquiring the crease area of the screen or the adjacent area of the crease area as pixels to be adjusted The target area for the value.

Those skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the devices and modules described above can refer to the corresponding process in the foregoing method embodiments, which will not be repeated here.

In several embodiments provided in the present application, the coupling between the modules may be electrical, mechanical or other forms of coupling.

In addition, each functional module in each embodiment of the present application may be integrated into one processing module, each module may exist separately physically, or two or more modules may be integrated into one module. The above-mentioned integrated modules can be implemented in the form of hardware or in the form of software function modules.

To sum up, the solution provided by this application obtains at least one of the crease area of the screen and the adjacent area of the crease area as the target area of the pixel value to be adjusted, and obtains the adjustment coefficient of the pixel value corresponding to the target area , and then adjust the pixel value of the target area based on the adjustment coefficient, so that the rendering brightness of the crease area and the adjacent area match, so that the pixel value of at least one of the crease area and the adjacent area can be adjusted to eliminate The creases generated by the folding of the screen have an impact on the display effect and improve the display effect of the screen.

Please refer to FIG. 11 , which shows a structural block diagram of an electronic device provided by an embodiment of the present application. The electronic device 100 may be an electronic device capable of running application programs, such as a smart phone, a tablet computer, and a notebook computer. The electronic device 100 in the present application may include one or more of the following components: a processor 160, a memory 170, a foldable screen 120, and one or more application programs, wherein one or more application programs may be stored in the memory 170 and configured to be executed by one or more processors 160, and one or more programs are configured to execute the methods described in the foregoing method embodiments.

Processor 160 may include one or more processing cores. The processor 160 uses various interfaces and lines to connect various parts in the entire electronic device 100, and executes or executes instructions, programs, code sets or instruction sets stored in the memory 170, and calls data stored in the memory 170 to execute Various functions of the electronic device 100 and processing data. Optionally, the processor 160 may adopt at least one of Digital Signal Processing (Digital Signal Processing, DSP), Field-Programmable Gate Array (Field-Programmable Gate Array, FPGA), and Programmable Logic Array (Programmable Logic Array, PLA). implemented in the form of hardware. The processor 160 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 to render and draw the displayed content; the modem is used to handle wireless communication. It can be understood that, the above modem may also not be integrated into the processor 160, but implemented by a communication chip alone.

The memory 170 may include random access memory (Random Access Memory, RAM), and may also include read-only memory (Read-Only Memory). The memory 170 may be used to store instructions, programs, codes, sets of codes or sets of instructions. The memory 170 may include a program storage area and a data storage area, wherein the program storage area may store instructions for implementing an 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 can also store data created during use of the electronic device 100 (such as phonebook, audio and video data, chat record data) and the like.

The foldable screen 120 is used to display information input by the user, information provided to the user, and various graphical user interfaces. These graphical user interfaces can be composed of graphics, text, icons, numbers, videos, and any combination thereof. In an example, the touch screen may be disposed on the foldable screen 120 so as to form an integral body with the foldable screen 120 . In addition, the foldable screen 130 may include a first display area and a second display area, and the first display area and the second display area may be selectively folded or unfolded relative to each other.

Please refer to FIG. 12 , which shows a structural block diagram of a computer-readable storage medium provided by an embodiment of the present application. Program codes are stored in the computer-readable medium 800, and the program codes can be invoked by a processor to execute the methods described in the foregoing 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 800 includes a non-transitory computer-readable storage medium (non-transitory computer-readable storage medium). The computer-readable storage medium 800 has a storage space for program code 810 for executing any method steps in the above-mentioned methods. These program codes can be read from or written into one or more computer program products. Program code 810 may, for example, be compressed in a suitable form.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still Modifications are made to the technical solutions described in the foregoing embodiments, or equivalent replacements are made to some of the technical features; and these modifications or replacements do not drive the essence of the corresponding technical solutions away from the spirit and scope of the technical solutions of the various embodiments of the present application.

Claims (20)

1. A crease compensation method applied to an electronic device, the electronic device including a foldable screen, the method comprising:

   Acquiring at least one of the crease area of the screen and the adjacent area of the crease area as a target area for pixel values to be adjusted;

   Acquiring an adjustment coefficient of a pixel value corresponding to the target area;

   After the pixel value of the target area is adjusted based on the adjustment coefficient, the brightness of the crease area matches that of the adjacent area.
2. The method according to claim 1, wherein the acquiring at least one of the crease area of the screen and the adjacent area of the crease area is used as a target area for pixel values to be adjusted, and the acquiring the target area The adjustment coefficient of the corresponding pixel value, including:

   Obtain the folding angle of the screen;

   According to the first corresponding relationship between the folding angle of the screen and the screen area of the pixel value to be adjusted, the screen area corresponding to the folding angle is obtained as the target area of the pixel value to be adjusted, and the screen area of the pixel value to be adjusted is at least one of a crease area of the screen and an area adjacent to the crease area;

   According to the second corresponding relationship between the folding angle of the screen and the adjustment coefficient, the adjustment coefficient corresponding to the folding angle is acquired as the adjustment coefficient of the pixel value corresponding to the target area.
3. According to the method according to claim 2, in said acquiring the crease area of the screen or the adjacent area of the crease area as the target area to be adjusted pixel value, and said acquiring the pixel value corresponding to the target area Before the adjustment coefficient, the method also includes:

   displaying a test image when the electronic device is in a preset state;

   Obtaining images obtained by collecting images of the screen displaying the test image at different folding angles of the screen, to obtain screen images corresponding to multiple folding angles;

   Based on the multiple screen images, acquiring the crease area and its adjacent area corresponding to each of the multiple folding angles;

   Based on the brightness of the crease area in the screen image corresponding to each folding angle, and the brightness of the adjacent area in the screen image corresponding to each folding angle, determine the screen corresponding to each folding angle to adjust the pixel value area, obtaining the corresponding relationship between each folding angle and the screen area of the pixel value to be adjusted as the first corresponding relationship;

   Based on the brightness of the crease area in the screen image corresponding to each folding angle, and the brightness of adjacent areas in the screen image corresponding to each folding angle, determine the adjustment coefficient corresponding to each folding angle, and obtain the The corresponding relationship between each folding angle and the adjustment coefficient is used as the second corresponding relationship.
4. According to the method according to claim 3, said each folding angle is determined based on the brightness of the crease area in the screen image corresponding to each folding angle and the brightness of the adjacent area in the screen image corresponding to each folding angle. The screen area of the pixel value to be adjusted corresponding to each folding angle, and the corresponding relationship between each folding angle and the screen area of the pixel value to be adjusted is obtained as the first correspondence, including:

   If the brightness of the crease area in the screen image corresponding to the first target angle is greater than the brightness of the adjacent area in the screen image corresponding to the first target angle, use the crease area corresponding to the first target angle as the first target A screen area whose pixel value is to be adjusted corresponding to the angle, and the first target angle is any one of the multiple folding angles.
5. According to the method according to claim 4, said each folding angle is determined based on the brightness of the crease area in the screen image corresponding to each folding angle and the brightness of the adjacent area in the screen image corresponding to each folding angle. The screen area of the pixel value to be adjusted corresponding to each folding angle, obtaining the correspondence between each folding angle and the screen area of the pixel value to be adjusted as the first correspondence, further comprising:

   If the brightness of the adjacent area in the screen image corresponding to the first target angle is greater than the brightness of the crease area in the screen image corresponding to the first target angle, use the adjacent area corresponding to the first target angle as the first The screen area of the pixel value to be adjusted corresponding to the target angle.
6. According to the method according to claim 3, said each folding angle is determined based on the brightness of the crease area in the screen image corresponding to each folding angle and the brightness of the adjacent area in the screen image corresponding to each folding angle. The screen area of the pixel value to be adjusted corresponding to each folding angle, and the corresponding relationship between each folding angle and the screen area of the pixel value to be adjusted is obtained as the first correspondence, including:

   Determining the screen area under each folding angle and the area with relatively low brightness in the adjacent area;

   If any color component value of the pixel in the region with relatively low brightness satisfies the color component condition, then take the region with relatively high brightness as the region to be adjusted for the pixel value;

   If each color component value of the pixel in the region with relatively low brightness does not satisfy the color component condition, then simultaneously use the crease region and adjacent regions as regions to be adjusted pixel values, or set the crease region One of the trace area and the adjacent area is used as the area to adjust the pixel value.
7. The method according to any one of claims 3-6, based on the brightness of the crease area in the screen image corresponding to each folding angle, and the brightness of adjacent areas in the screen image corresponding to each folding angle , determining the adjustment coefficient corresponding to each folding angle, obtaining the correspondence between each folding angle and the adjustment coefficient as the second correspondence, including:

   Obtain the pixel value and the gamma value of the screen area corresponding to the pixel value to be adjusted corresponding to the second target angle, where the second target angle is any one of the plurality of folding angles;

   Based on the ratio between the brightness of the crease area in the screen image corresponding to the second target angle and the brightness of the adjacent area in the screen image corresponding to the second target angle;

   Based on the pixel value, the gamma value, and the ratio, an adjustment coefficient of a screen area corresponding to the second target angle with a pixel value to be adjusted is acquired.
8. The method according to any one of claims 3-7, wherein the test image is an image of a preset color.
9. The method according to any one of claims 3-8, wherein the preset state includes: the electronic device is in the process of starting up, and within the first period of time after the electronic device is turned on, the electronic device Every time the screen of the electronic device is not used within the second time period, or the number of times the screen of the electronic device is folded reaches a preset number of times.
10. The method according to any one of claims 2-9, further comprising:

    The first corresponding relationship and the second corresponding relationship are updated every preset time interval.
11. The method according to claim 1, wherein said acquiring at least one of the crease area of the screen and the adjacent area of the crease area is used as the target area of pixel values to be adjusted, and said acquiring The adjustment coefficient of the pixel value corresponding to the target area includes:

    display a test image;

    Acquiring a target image obtained by performing image acquisition on the screen displaying the test image in the current folded state;

    Acquiring a crease area of the screen and adjacent areas of the crease area based on the target image;

    Based on the brightness of the crease area in the target image and the brightness of the adjacent area in the target image, acquiring at least one of the crease area and the adjacent area as a target area to be adjusted pixel values ;

    Based on the brightness of the crease area in the target image and the brightness of the adjacent area in the target image, an adjustment coefficient of a pixel value corresponding to the target area is determined.
12. The method according to claim 11, based on the brightness of the crease region in the target image and the brightness of the adjacent region in the target image, obtaining the At least one of is used as the target area to adjust the pixel value, including:

    If the brightness of the crease area in the target image is greater than the brightness of the adjacent area in the target image, the crease area is used as a target area for pixel values to be adjusted.
13. The method according to claim 12, based on the brightness of the crease region in the target image and the brightness of the adjacent region in the target image, obtaining the At least one of is used as the target area of the pixel value to be adjusted, and also includes:

    If the brightness of the adjacent area in the target image is greater than the brightness of the crease area in the target image, the adjacent area is used as a target area for pixel values to be adjusted.
14. The method according to any one of claims 11-13, wherein based on the brightness of the crease area in the target image and the brightness of the adjacent area in the target image, determining the corresponding Adjustment factors for pixel values, including:

    Obtain the pixel value and gamma value of the target area;

    Based on a brightness ratio between the brightness of the crease area in the target image and the brightness of the adjacent area in the target image;

    An adjustment coefficient of a pixel value corresponding to the target area is determined based on the pixel value, the gamma value, and the brightness ratio.
15. According to the method according to any one of claims 11-14, the test image is an image of a preset color.
16. According to the method according to any one of claims 1-15, the acquiring the crease area of the screen or the adjacent area of the crease area as the target area of pixel values to be adjusted comprises:

    In response to a change in the folding angle of the screen, performing the acquiring a crease area of the screen or an adjacent area of the crease area as a target area of pixel values to be adjusted.
17. According to the method according to any one of claims 1-15, the acquiring the crease area of the screen or the adjacent area of the crease area as the target area of pixel values to be adjusted comprises:

    In response to the calibration operation for calibrating the crease, the acquiring of the crease area of the screen or an adjacent area of the crease area as a target area of pixel values to be adjusted is performed.
18. A crease compensation device, applied to electronic equipment, the electronic equipment includes a foldable screen, the device includes: a calibration area acquisition module, an adjustment coefficient acquisition module, and a pixel value adjustment module, wherein:

    The calibration area acquisition module is used to acquire at least one of the crease area of the screen and the adjacent area of the crease area as a target area for pixel values to be adjusted;

    The adjustment coefficient obtaining module is used to obtain the adjustment coefficient of the pixel value corresponding to the target area;

    The pixel value adjustment module is configured to adjust the pixel value of the target area based on the adjustment coefficient, so that the brightness of the crease area matches that of the adjacent area.
19. An electronic device comprising:

    foldable screen;

    one or more processors;

    memory;

    one or more application programs, wherein the one or more application programs are stored in the memory and configured to be executed by the one or more processors, the one or more programs are configured to perform as The method according to any one of claims 1-17.
20. A computer-readable storage medium, wherein program codes are stored in the computer-readable storage medium, and the program codes can be invoked by a processor to execute the method according to any one of claims 1-17.

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