WO2020177124A1

WO2020177124A1 - Display control method, display device and electronic device

Info

Publication number: WO2020177124A1
Application number: PCT/CN2019/077339
Authority: WO
Inventors: 郭星灵; 谭小平
Original assignee: 深圳市柔宇科技有限公司
Priority date: 2019-03-07
Filing date: 2019-03-07
Publication date: 2020-09-10
Also published as: CN113261046A

Abstract

A display control method used for a display device (100). The display device (100) comprises a first display area (100a) and a second display area (100b) for displaying or stopping display when in a split-screen state. The display control method comprises the steps of: (S10) determining a first time when the first display area (100a) is illuminated; (S20) determining a second time when the second display area (100b) is illuminated; (S30) when the first display area (100a) and the second display area (100b) simultaneously display a picture, adjusting, according to the first time and the second time, Gamma curves of the first display area (100a) and the second display area (100b), wherein the first display area (100a) corresponds to a first Gamma curve (ga), and the second display area (100b) corresponds to a second Gamma curve (gb); and (S40) driving the first display area (100a) for display by means of the first Gamma curve (ga), and driving the second display area (100b) for display by means of the second Gamma curve (gb).

Description

Display control method, display device and electronic device

Technical field

This application relates to the field of flexible display technology, and in particular to a display control method, display device and electronic device.

Background technique

The luminous efficiency of OLED materials will decay as the use time increases. After the display device is folded, only part of the screen is used for display, and the folded part of the screen will be closed and not used for display. This is the case for a long time, and the screen is often used after unfolding. The display effect of part of the screen area displayed and other areas will be different, resulting in uneven display and poor display effect.

Summary of the invention

The application provides a display control method, a display device and an electronic device.

The embodiment of the present application provides a display control method for a display device. The display device includes a first display area and a second display area for displaying or stopping display when in a split-screen state, and the display control method includes step:

Determining the first time when the first display area is turned on;

Determining a second time when the second display area is lit;

When the first display area and the second display area display pictures at the same time, adjusting the gamma curves of the first display area and the second display area according to the first time and the second time, the The first display area corresponds to a first gamma curve, and the second display area corresponds to a second gamma curve;

The first display area is driven by the first gamma curve and the second display area is driven by the second gamma curve to display.

The embodiment of the present application provides a display device, the display device includes a first display area and a second display area for displaying or stopping display when in a split screen state, the display device further includes:

A first determining module, configured to determine the first time when the first display area is turned on;

A second determining module, configured to determine a second time when the second display area is turned on;

The processing module is configured to adjust the values of the first display area and the second display area according to the first time and the second time when the screen is displayed simultaneously in the first display area and the second display area. A horse curve, the first display area corresponds to a first gamma curve, and the second display area corresponds to a second gamma curve;

The driving module drives the first display area to display with the first gamma curve and drives the second display area to display with the second gamma curve.

The embodiment of the present application provides an electronic device including the display device described above.

The display control method, display device, and electronic device of the embodiments of the present application calculate the display time of different areas after the display device is folded, and adjust the driving parameters to compensate according to the influence of the display time on the display screen, so that the brightness of each area of the display device is uniformly displayed , Improve the display effect of the display device and improve the picture quality.

The additional aspects and advantages of the present application will be partially given in the following description, and some will become obvious from the following description, or be understood through the practice of the present application.

Description of the drawings

The above and/or additional aspects and advantages of the present application will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, in which:

1a and 1b are schematic diagrams of the state of the display device of the embodiment of the present application;

2 is a schematic flowchart of a display control method according to an embodiment of the present application;

3 is a schematic diagram of modules of a display device according to an embodiment of the present application;

4 is a schematic flowchart of a display control method according to another embodiment of the present application;

5-7 are schematic diagrams of the state of the display control method of the embodiment of the present application;

FIG. 8 is a schematic flowchart of a display control method according to another embodiment of the present application;

FIG. 9 is a schematic flowchart of a display control method according to another embodiment of the present application;

10 is a schematic diagram of modules of a display device according to another embodiment of the present application;

FIG. 11 is a state diagram of a display control method according to another embodiment of the present application.

detailed description

The embodiments of the present application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions. The following embodiments described with reference to the accompanying drawings are exemplary, and are only used to explain the present application, and cannot be understood as a limitation to the present application.

In the description of this application, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, "multiple" means two or more than two, unless otherwise specifically defined.

In the description of this application, it should be noted that the terms "installation", "connection", and "connection" should be interpreted broadly unless otherwise clearly specified and limited. For example, it can be a fixed connection or a detachable connection. Connected or integrally connected; it can be mechanically connected, or electrically connected or can communicate with each other; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal communication of two components or the interaction of two components relationship. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

In this application, unless expressly stipulated and defined otherwise, the "on" or "under" of the first feature of the second feature may include the first and second features in direct contact, or may include the first and second features Not in direct contact but through other features between them. Moreover, "above", "above" and "above" the second feature of the first feature include the first feature being directly above and obliquely above the second feature, or it simply means that the level of the first feature is higher than the second feature. The "below", "below" and "below" the first feature of the second feature include the first feature directly below and obliquely below the second feature, or it simply means that the first feature has a lower level than the second feature.

The following disclosure provides many different embodiments or examples for realizing different structures of the present application. To simplify the disclosure of the present application, the components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the application. In addition, the present application may repeat reference numerals and/or reference letters in different examples. Such repetition is for the purpose of simplification and clarity, and does not indicate the relationship between the various embodiments and/or settings discussed. In addition, this application provides examples of various specific processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and/or the use of other materials.

Please refer to FIG. 1a-3, the display control method of the embodiment of the present application is used in a display device. The display device includes a first display area and a second display area for displaying or stopping when in a split screen state. The display control method includes the following steps:

S10: Determine the first time when the first display area is turned on;

S20: Determine the second time when the second display area is turned on;

S30: When the screen is displayed in the first display area and the second display area at the same time, adjust the gamma curve of the first display area and the second display area according to the first time and the second time, and the first display area corresponds to the first gamma curve , The second display area corresponds to the second gamma curve;

S40: Drive the first display area to display with the first gamma curve and drive the second display area to display with the second gamma curve.

The electronic device 1000 of the embodiment of the present application includes a display device 100. The display device 100 includes a first display area 100a and a second display area 100b for displaying or stopping display when in a split screen state. The display device 100 further includes a first determining module 10, a second determining module 20, a processing module 30, and a driving module 40.

The display control method of the embodiment of the present application may be executed by the display device 100 of the embodiment of the present application. Specifically, step S10 may be implemented by the first determining module 10, step S20 may be implemented by the second determining module 20, step S30 may be implemented by the processing module 30, and step S40 may be implemented by the driving module 40. In other words, the first determining module 10 is used to determine the first time t1 when the first display area 100a is turned on, and the second determining module 20 is used to determine the second time t2 when the second display area 100b is turned on. The processing module 30 is used to adjust the gamma curve of the first display area 100a and the second display area 100b according to the first time t1 and the second time t2 when the first display area 100a and the second display area 100b are simultaneously displaying pictures. One display area 100a corresponds to the first gamma curve g1, and the second display area 100b corresponds to the second gamma curve g2. The driving module 40 is configured to drive the first display area 100a to display with the first gamma curve g1 and to drive the second display area 100b to display with the second gamma curve g2.

The display control method, the display device 100, and the electronic device 1000 of the embodiment of the present application calculate the display time of different regions after the display device 100 is folded, and adjust the driving parameters to compensate according to the influence of the display time on the display screen, so that each display device 100 The area brightness is evenly displayed, which improves the display effect of the display device 100 and improves the image quality.

Specifically, the display device 100 may be a mobile phone, a tablet computer, a smart watch, a smart bracelet, a smart wearable device, etc., an electronic device that can perform a split-screen display or a foldable display to partially display. The display device 100 is a mobile phone in the embodiment of the application. Take an example. It can be understood that the specific form of the display device 100 is not limited to a mobile phone.

In some embodiments, the display device 100 is a foldable display device, and the first display area 100a and the second display area 100b are divided by folds.

Specifically, the display device 100 may be folded along a preset rotation axis, for example, along a central axis, so as to have a folded state and a flat state. When in the folded state, the display device 100 forms two display areas, namely a first display area 100a and a second display area 100b, where the area facing the user for display is the first display area 100a, and the second display area facing the user is The area 100b stops displaying.

It should be noted that the split-screen state includes not only displaying the display device 100 in a partial display area in a split-screen form, but also including displaying the display device 100 toward the display area on the user side when the display device 100 is in the folded state.

The stop display means that the display area on the side facing away from the user suspends display. Generally, the electronic device 1000 can determine the orientation of the display area through a detection element such as a gravity sensor to determine the orientation of the display area. After that, the second display area 100b is made to face the user, and the first display area 100a is facing away from the user, and the previous first display area 100a will stop displaying.

In the flat state, the first display area 100a and the second display area 100b form a display area for display.

The display device 100 of the present application adopts an OLED display screen. The OLED display screen mainly uses the self-luminous characteristics of the OLED material to display pictures, and the luminous efficiency of the OLED material decays over time. Understandably, the display device is often in a folded state. After the 100 is unfolded, because the first display area 100a and the second display area 100b have different lighting durations, when the same content is displayed, the display effects of the two areas will be different, resulting in uneven brightness in the display area.

In the display control method of the present application, the display time of the first display area 100a and the second display area 100b are respectively counted. According to the time length and the law of OLED attenuation, when in a flat state, the two display areas are adjusted by driving the gamma Curve to compensate the unevenness of the screen display, thereby improving the display effect.

Referring to FIGS. 4-7, in some embodiments, step S30 includes:

S31: Read the relationship table between the first time and the second time and the gamma curve;

S32: Search the first gamma curve and the second gamma curve corresponding to the first time and the second time in the relationship table respectively.

In some embodiments, steps S31 and S32 can be implemented by the processing module 30. In other words, the processing module 30 is configured to read the relationship table between the first time and the second time and the gamma curve, and search the relationship table for the gamma corresponding to the display time of the first display area and the display time of the second display area. Horse curve.

Specifically, before the display device 100 leaves the factory, a table of the relationship between the display time and the gamma curve may be pre-stored in the memory of the display device 100 through initialization. The relationship table includes multiple gamma curves, and each gamma curve is re-measured after the display device 100 is lit for a predetermined period of time. The multiple gamma curves in the relationship table are gamma curves obtained by the display device 100 reaching the same target brightness at different display times. As time goes by, the display brightness is attenuating. For displaying the same grayscale data, a higher brightness value is required for display after the attenuation. The gray scale data determines the size of the drive voltage through the value of the register, and the size of the drive voltage determines the size of the brightness. For example, before attenuation, the grayscale data is 0, the corresponding setting register value is 0, then the corresponding driving voltage under 0 grayscale data is 0, then the brightness is 0, which is recorded as Gamma 0, after attenuation, the driving voltage must reach 0.5 Volts, the brightness can be 0, so you need to set the register value corresponding to 0 grayscale data to the register value that outputs 0.5 volts, which is recorded as Gamma n.

In this embodiment, the first display area 100a and the second display 100b of the display device 100 are respectively recorded for the total display duration. For example, the display device 100 may include two timing units for measuring the first display area 100a and The display duration of the second display area 100b is recorded. Specifically, the first display area 100a starts recording the lighting time every time when it is turned on to stop recording when the display stops, and the recorded time is accumulated, that is, the first time t1 when the first display area is turned on, similarly Each time the second display area 100b starts to record the lighting time when it is turned on to stop recording when the display is stopped, the accumulated recorded time is the first time t2 when the second display area is turned on.

When the difference between t1 and t2 is large enough, when displaying in a flat state, if the same gamma curve is used to drive the first display area 100a and the second display area 100b, there will be a significant difference between the two areas.

According to t1 and t2, a suitable gamma curve is searched in the relationship table for driving the first display area 100a and the second display area 100b for display respectively.

It can be understood that each gamma curve is measured at intervals of a predetermined display time, for example, measured every 1000 hours. Therefore, when looking for a gamma curve corresponding to the display time, it can be selected according to the interval between the first time and the second time. Gamma curve, for example, if t1 is 1200 hours and t2 is 600 hours, then for t1 in the interval [1000, 2000), the gamma curve Gamma 1 corresponding to 1000 hours can be selected as the first gamma curve ga, similarly , T2 belongs to the interval [0,1000), and the gamma curve Gamma 0 corresponding to 0 hours can be selected as the second gamma curve gb.

In some embodiments, the display control method further includes the steps:

Acquiring grayscale data of a frame of input image;

Calculate the average gray level of the image according to the gray level data;

Perform gray-scale normalization processing on the average gray-scale to obtain gray-scale weights.

In such an embodiment, step S10 includes:

It is determined that the product of the first time and the gray scale weight is the first final display time of the first display area.

Step S20 includes:

It is determined that the product of the second time and the gray scale weight is the second final display time of the second display area.

Step S32 includes:

Find the gamma curves corresponding to the first final display time and the second final display time in the relationship table.

In some embodiments, the processing module 20 is also used to obtain grayscale data of the input image, calculate the average grayscale of the image according to the grayscale data, and perform grayscale normalization processing on the average grayscale to obtain the grayscale weight w.

In such an embodiment, the first determining module 10 is further configured to determine that the product w*t1 of the first time t1 and the grayscale weight w is the first final display time t1' of the first display area 100a; the second determining module 20 It is also used to determine that the product w*t2 of the second time t2 and the gray scale weight is the second final display time t2' of the second display area 100b.

Specifically, it can be understood that because setting the gamma curve is generally performed under a grayscale screen, and when the display device 100 is used normally, the display content is usually displayed in colorful colors, which are different from the grayscale image background, so it needs to be calculated Weight to simulate the actual degree of attenuation.

It is sufficient to calculate the gray-scale weight using one frame of gray-scale data of the image to be output and displayed. In this way, the estimation of the attenuation degree can be made more accurate to a certain extent. Of course, since each gamma curve corresponds to a display time interval, directly using t1 and t2 as the final display time is also applicable, and the calculation amount is smaller.

Please refer to FIG. 8. In other embodiments, step S30 includes:

S33: Determine the difference between the first time and the second time;

S34: Read the relationship table between the difference between the first time and the second time and the gamma curve;

S35: Find the gamma curve corresponding to the difference between the first time and the second time in the relationship table;

S36: Use the gamma curve corresponding to the difference between the first time and the second time as the second gamma curve.

In some embodiments, steps S33 to S36 can be implemented by the processing module 30. In other words, the processing module 30 is used to determine the difference between the first time and the second time, read the relationship table between the difference between the first time and the second time and the gamma curve, and look up the relationship between the first time and the second time in the relationship table. For the gamma curve corresponding to the time difference, the gamma curve corresponding to the first time is used as the first gamma curve, and the gamma curve corresponding to the difference between the first time and the second time is used as the second gamma curve.

Specifically, the foregoing embodiment adjusts the corresponding gamma curves for the two display areas according to the display time. In this embodiment, according to the difference between the two display areas, one of the display areas is used as a reference to adjust the other display area. The gamma curve of the group display area.

In this embodiment, the memory of the display device 100 also pre-stores a table of the relationship between the display time difference and the gamma curve.

It should be noted that the gamma curve in the relationship table does not represent an absolute relationship, but a relative relationship, that is to say, the relationship table represents a display duration relative to one display duration, and the other display duration reaches the same Displays the gamma curve of brightness. It is not a gamma curve corresponding to an absolute display duration.

In this embodiment, when the display device 100 lights up, it starts to record the lighting time, that is, the first time T1. When the display device 100 is bent from the flat state to the folded state, the first time T1 is recorded while the order is recorded. The side display time is the second time T2 when the display device 100 is in the folded state. When the display device 100 is expanded from the folded state to the flat state again, the recording of the second time T2 is stopped. At this time, the display duration Ta of the first display area 100a is T1, and the display duration Tb of the second display area 100b is T1 and T2. Difference.

According to Ta and Tb, a suitable gamma curve is searched in the relationship table for display in the second display area 100b.

In some embodiments, the display control method further includes the steps:

Acquiring grayscale data of a frame of input image;

Calculate the average gray level of the image according to the gray level data;

In such an embodiment, step S10 includes:

Step S20 includes:

Step S32 includes:

In some embodiments, the processing module 30 is further configured to obtain grayscale data of the input image, calculate the average grayscale of the image according to the grayscale data, and perform grayscale normalization processing on the average grayscale to obtain the grayscale weight w.

In such an embodiment, the first determining module 10 is further configured to determine that the product W*T1 of the first time T1 and the gray scale weight W is the first final display time Ta′ of the first display area 100a; the second determining module 20 It is also used to determine the product W*(T1-T2) of the first time T1, the second time T2 and the gray scale weight as the second final display time Tb′ of the second display area 100b.

Specifically, it can be understood that because setting the gamma curve is generally performed under a grayscale screen, and when the display device 100 is in normal use, the display content is usually displayed in colorful colors, which is different from the grayscale image background, so it needs to be calculated Weight to simulate the actual degree of attenuation.

It is sufficient to calculate the gray-scale weight using one frame of gray-scale data of the image to be output and displayed. In this way, the estimation of the attenuation degree can be made more accurate to a certain extent. Of course, since each gamma curve corresponds to a display time interval, it is also applicable to directly use Ta and Tb as the final display time, and the amount of calculation is smaller.

Referring to FIGS. 9-11, in some embodiments, step S40 further includes:

S41: Detect the boundary between the first display area and the second display area to generate a switching signal.

S42: Switch the first gamma curve and the second gamma curve according to the switching signal.

In some embodiments, the display device 100 further includes an enabling module 50. Step S41 can be implemented by the enabling module, and step S42 can be implemented by the driving module 40. In other words, the enabling module 50 is used to detect the boundary between the first display area 100a and the second display area 100b to generate a switching signal. The driving module 30 is configured to switch the first gamma curve g1 and the second gamma curve g2 according to the switching signal.

Specifically, in this embodiment, the first display area 100a and the second display area 100b of the display device 100 share the same driving module 40, and different gamma curves need to be used for driving during the driving process. Therefore, it is necessary to determine the gamma The switching timing of the curve is to determine the bend or the boundary between the first display area 100a and the second display area 100b.

When the display device 100 is unfolded from the folded state to the flat state, the enabling module 50 knows that the display device 100 is unfolded, and the driving module 40 starts to scan the display device 100 and starts counting from the first line. When making a break, the enable signal is output to the processing module 30. For example, the resolution of the display device 100 is 1920*1080, that is, a total of 1920 lines are scanned, and the folded state is half-folded, that is, the boundary between the first display area 100a and the second display area 100b is the 960th line, and the drive module 300 scans from the second display area 100b to the first display area 100a. When scanning the second display area 100b, it is driven by the second gamma curve gb, and when the scan reaches the 960th line, the second gamma curve gb is switched To the first gamma curve ga, the first display area 100a is driven to display by the first gamma curve ga. When the display device 100 is in the folded state, only 960 lines can be scanned, and the first display area 100a is driven to display by the first gamma curve ga during the scanning process.

In this way, when the enabling module 50 displays each frame of image, it outputs an enabling signal according to the number of lines, and the driving module 40 uses this signal as a switching opportunity to dynamically switch the first gamma curve ga and the second display of the first display area 100a The second gamma curve gb of the area 100b.

In the description of this specification, the description with reference to the terms “one embodiment”, “certain embodiments”, “exemplary embodiments”, “examples”, “specific examples”, or “some examples” and the like means The specific features, structures, materials, or characteristics described in the embodiments or examples are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above-mentioned terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials, or characteristics can be combined in any one or more embodiments or examples in an appropriate manner.

Although the embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and modifications can be made to these embodiments without departing from the principle and purpose of the present application. The scope of the application is defined by the claims and their equivalents.

Claims

A display control method for a display device, wherein the display device includes a first display area and a second display area for displaying or stopping display when in a split-screen state, and the display control method includes the steps :

Determining the first time when the first display area is turned on;

Determining a second time when the second display area is lit;

When the first display area and the second display area display pictures at the same time, adjusting the gamma curves of the first display area and the second display area according to the first time and the second time, the The first display area corresponds to a first gamma curve, and the second display area corresponds to a second gamma curve;

The first display area is driven by the first gamma curve and the second display area is driven by the second gamma curve to display.
The display control method according to claim 1, wherein the step of adjusting the gamma curve of the first display area and the second display area according to the first time and the second time comprises :

Read the relationship table between the first time and the second time and the gamma curve;

The first gamma curve and the second gamma curve corresponding to the first time and the second time are respectively searched in the relationship table.
3. The display control method of claim 2, wherein the display control method further comprises:

Acquiring grayscale data of a frame of input image;

Calculating an average gray level of the image according to the gray level data;

Performing gray-scale normalization processing on the average gray-scale to obtain gray-scale weights.
5. The display control method according to claim 3, wherein the step of determining the first time when the first display area is turned on comprises:

Determining that the product of the first time and the grayscale weight is the first final display time of the first display area;

The step of determining the second time when the second display area is turned on includes:

Determining that the product of the second time and the gray scale weight is the second final display time of the second display area;

The step of searching the first gamma curve and the second gamma curve corresponding to the first time and the second time in the relationship table respectively includes:

The first gamma curve and the second gamma curve corresponding to the first final display time and the second final display time are respectively searched in the relationship table.
The display control method according to claim 1, wherein the step of adjusting the gamma curve of the first display area and the second display area according to the first time and the second time comprises :

Determine the difference between the first time and the second time;

Read the relationship table between the difference between the first time and the second time and the gamma curve;

Searching for a gamma curve corresponding to the difference between the first time and the second time in the relationship table;

A gamma curve corresponding to the difference between the first time and the second time is used as the second gamma curve.
7. The display control method of claim 5, wherein the display control method further comprises:

Acquiring grayscale data of a frame of input image;

Calculating an average gray level of the image according to the gray level data;

Performing gray-scale normalization processing on the average gray-scale to obtain gray-scale weights.
7. The display control method according to claim 6, wherein the step of determining the first time when the first display area is turned on comprises:

Determining that the product of the first time and the grayscale weight is the first final display time of the first display area;

The step of determining the difference between the first time and the second time includes:

Determining that the product of the difference between the first time and the second time and the grayscale weight is the second final display time of the second display area;

The step of searching the gamma curve corresponding to the difference between the first time and the second time in the relationship table includes:

Search for a second gamma curve corresponding to the second final display time in the relationship table.
2. The display control method of claim 1, wherein the step of driving the first display area with the first gamma curve and driving the second display area with the second gamma curve include:

Detecting a boundary between the first display area and the second display area to generate a switching signal;

Switching the first gamma curve and the second gamma curve according to the switching signal.
The display control method according to claim 1, wherein the display device is a foldable display device, and the first display area and the second display area are divided by folds.
A display device, characterized in that, the display device includes a first display area and a second display area for displaying or stopping display when in a split screen state, and the display device further includes:

A first determining module, configured to determine the first time when the first display area is turned on;

A second determining module, configured to determine a second time when the second display area is turned on;

The processing module is configured to adjust the values of the first display area and the second display area according to the first time and the second time when the screen is displayed simultaneously in the first display area and the second display area. A horse curve, the first display area corresponds to a first gamma curve, and the second display area corresponds to a second gamma curve;

The driving module drives the first display area to display with the first gamma curve and drives the second display area to display with the second gamma curve.
The display device according to claim 10, wherein the processing module is configured to read the relationship table between the first time and the second time and the gamma curve, and search the relationship table with the The first gamma curve and the second gamma curve corresponding to the first time and the second time.
15. The display device of claim 11, wherein the processing module is further configured to:

Obtain grayscale data of the input image;

Calculating an average gray level of the image according to the gray level data;

Performing gray-scale normalization processing on the average gray-scale to obtain gray-scale weights.
The display device of claim 10, wherein the first determining module is further configured to determine that the product of the first time and the gray scale weight is the first final display time of the first display area ；

The second determining module is further configured to determine that the product of the second time and the grayscale weight is the second final display time of the second display area;

The processing module is further configured to search the first gamma curve and the second gamma curve corresponding to the first final display time and the second final display time in the relationship table.
The display device of claim 12, wherein the processing module is further configured to:

Determine the difference between the first time and the second time;

Read the relationship table between the difference between the first time and the second time and the gamma curve;

Searching for a gamma curve corresponding to the difference between the first time and the second time in the relationship table;

A gamma curve corresponding to the difference between the first time and the second time is used as the second gamma curve.
The display device of claim 14, wherein the processing module is further configured to:

Obtain grayscale data of the input image;

Calculating an average gray level of the image according to the gray level data;

Performing gray-scale normalization processing on the average gray-scale to obtain gray-scale weights.
The display device of claim 15, wherein the first determining module is further configured to determine that the product of the first time and the gray scale weight is the first final display time of the first display area ；

The second determining module is further configured to determine that the product of the difference between the first time and the second time and the gray scale weight is the second final display time of the second display area;

The processing module is further configured to search for a second gamma curve corresponding to the second final display time in the relationship table.
The display device of claim 10, wherein the display device further comprises an enabling module for detecting a boundary between the first display area and the second display area When generating a switching signal;

The driving module is configured to switch the first gamma curve and the second gamma curve according to the switching signal.
11. The display device of claim 10, wherein the display device is a foldable display device, and the first display area and the second display area are divided by folds.
An electronic device, characterized by comprising the display device according to any one of claims 10-18.