Driving method, device and display device of display panel

Abstract

The application discloses a display panel driving method, device and display device. The driving method comprises determining a current display mode of the display panel; determining that the display panel adopts a first display mode, and driving the display panel to display a to-be-displayed picture according to a first corresponding relationship between first driving data and a first gray scale range; and determining that the display panel adopts a second display mode, and driving the display panel to display the to-be-displayed picture according to the first corresponding relationship, second driving data and a second corresponding relationship between the second gray scale range. The first gray scale range and the second gray scale range are gray scale ranges corresponding to n-bit pictures, the first gray scale range is from 0 gray scale to 2 n -t gray scale, the second gray scale range is from 2 n -t+1 gray scale to 2 n -1 gray scale, and display brightness corresponding to each gray scale in the second gray scale range is greater than 2 n -t gray scale. The application meets different display brightness requirements of the display panel, and reduces cost.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display, in particular to a driving method, device and display device of display panel. BACKGROUND

[0002] With the development of display technology, people have higher and higher requirements on display performance and cost of display panel. However, the existing display panel cannot balance display performance and low cost. SUMMARY

[0003] The present application provides a driving method, device and display device of display panel, which can meet different display brightness requirements of display panel while reducing cost.

[0004] According to an aspect of the present application, a driving method of display panel is provided, comprising:

[0005] determining a display mode currently used by the display panel; wherein the display mode comprises a first display mode and a second display mode, the maximum display brightness of the second display mode is greater than the maximum display brightness of the first display mode, and the minimum display brightness of the second display mode is the same as the minimum display brightness of the first display mode;

[0006] when it is determined that the display mode currently used by the display panel is the first display mode, driving the display panel to display a to-be-displayed picture according to a first corresponding relationship between first driving data and a first gray scale range; and when it is determined that the display mode used by the display panel is the second display mode, driving the display panel to display the to-be-displayed picture according to the first corresponding relationship, second driving data and a second corresponding relationship between the second driving data and a second gray scale range;

[0007] wherein the first gray scale range and the second gray scale range are gray scale ranges corresponding to n-bit pictures, the first gray scale range is from 0 gray scale to gray scale, the second gray scale range is from gray scale to gray scale, the first driving data comprises driving data corresponding to at least two different gray scales in the first gray scale range, the second driving data comprises driving data corresponding to at least one gray scale in the second gray scale range, and the display brightness corresponding to each gray scale in the second gray scale range is greater than the display brightness corresponding to gray scale according to the first corresponding relationship and the second corresponding relationship, n is a positive integer greater than 8, and t is an integer greater than 1.

[0008] Optionally, when it is determined that the display panel is currently using a first display mode, the display panel is driven to display the image to be displayed according to a first correspondence between the first driving data and the first grayscale range; when it is determined that the display panel is using a second display mode, the display panel is driven to display the image to be displayed according to the first correspondence and a second correspondence between the second driving data and the second grayscale range, including:

[0009] When the image to be displayed is an m-bit image, where m is a positive integer and m is less than n: when the display panel adopts the first display mode, the display panel is driven to display the image to be displayed according to the third correspondence between the gray levels in the third gray level range and the gray levels in the first gray level range, and the first correspondence; wherein, the third gray level range is the gray level range corresponding to the m-bit image, and the third gray level range is from gray level 0 to... Gray levels, wherein multiple gray levels in the third gray level range correspond to different gray levels in the first gray level range, and the gray levels in the third gray level range and the corresponding gray levels in the first gray level range use the same driving data; when the display panel adopts the second display mode, the image to be displayed is converted into an n-bit converted image, and the display panel is driven to display the converted image according to the first correspondence and the second correspondence.

[0010] When the image to be displayed is an n-bit image: when the display panel adopts the first display mode, determine... grayscale to grayscale driving data and The driving data corresponding to the gray levels are the same, based on the first correspondence and the newly determined... grayscale to The grayscale driving data drives the display panel to display the image to be displayed; when the display panel adopts the second display mode, the display panel is driven to display the image to be displayed according to the first correspondence and the second correspondence.

[0011] Optionally, the display panel is driven to display the image to be displayed based on a third correspondence between gray levels in the third gray level range and gray levels in the first gray level range, and the first correspondence, including:

[0012] Based on the third correspondence, determine the gray level corresponding to the gray level in the third gray level range within the first gray level range;

[0013] Based on the gray levels determined in the first gray level range and the first correspondence, determine the driving data corresponding to the gray levels in the third gray level range.

[0014] Based on the driving data corresponding to the gray levels in the third gray level range, the driving display panel displays the image to be displayed.

[0015] Optionally, when it is determined that the display mode adopted by the display panel is the second display mode, the display panel is driven to display the to-be-displayed picture according to the first correspondence relationship and a second correspondence relationship between the second driving data and a second gray scale range, The display brightness corresponding to the gray scale is a peak brightness of the display panel.

[0016] When the display panel is driven to display the to-be-displayed picture according to the first correspondence relationship and is driven to display the picture according to the first correspondence relationship and the second correspondence relationship, The display brightness corresponding to the gray scale is a fingerprint identification brightness of the display panel.

[0017] The first display mode is a fingerprint identification mode or a high brightness (HBM) mode, and the second display mode is a high dynamic range (HDR) mode or a star sky shooting mode.

[0018] Optionally, the first driving data includes The driving data corresponding to the gray scale, and the second driving data includes The driving data corresponding to the gray scale.

[0019] According to the first correspondence relationship and the second correspondence relationship between the second driving data and the second gray scale range, the display panel is driven to display the to-be-displayed picture, including:

[0020] determining a first corresponding gray scale corresponding to the first gray scale in the first gray scale range, determining the driving data of the first corresponding gray scale by an interpolation algorithm according to the first correspondence relationship, and determining the driving data of the first corresponding gray scale as the driving data of the first gray scale; and / or, determining a second corresponding gray scale corresponding to the second gray scale in the second gray scale range, determining the driving data of the second corresponding gray scale by an interpolation algorithm according to The driving data corresponding to the gray scale and The driving data corresponding to the gray scale, and determining the driving data of the second corresponding gray scale as the driving data of the second gray scale; wherein the first gray scale and the second gray scale are gray scales in the to-be-displayed picture.

[0021] The display panel is driven to display the to-be-displayed picture according to the driving data of the first gray scale and / or the driving data of the second gray scale.

[0022] Optionally, determining the display mode currently adopted by the display panel includes:

[0023] determining the display mode of the display panel according to a trigger instruction of a user, or determining the display mode of the display panel according to an ambient brightness

[0024] Preferably, m is greater than or equal to 8, and n is greater than or equal to 10.

[0025] According to another aspect of the present invention, a driving device for a display panel is provided, comprising:

[0026] The display mode determination module is used to determine the display mode currently used by the display panel; wherein, the display mode includes a first display mode and a second display mode, the maximum display brightness of the second display mode is greater than the maximum display brightness of the first display mode, and the minimum display brightness of the second display mode is the same as the minimum display brightness of the first display mode;

[0027] The driving module is used to drive the display panel to display the image to be displayed according to the first correspondence between the first driving data and the first grayscale range when it is determined that the display mode currently adopted by the display panel is the first display mode; and to drive the display panel to display the image to be displayed according to the first correspondence and the second correspondence between the second driving data and the second grayscale range when it is determined that the display mode adopted by the display panel is the second display mode.

[0028] Wherein, the first grayscale range and the second grayscale range are the grayscale ranges corresponding to an n-bit image, and the first grayscale range is from grayscale 0 to grayscale 2. grayscale, the second grayscale range is grayscale to The grayscale values ​​are defined as follows: the first driving data includes driving data corresponding to at least two different grayscale values ​​within a first grayscale range; the second driving data includes driving data corresponding to at least one grayscale value within a second grayscale range; and when driving the display panel according to the first and second correspondences, the display brightness corresponding to each grayscale value within the second grayscale range is greater than [value missing]. The display brightness corresponding to the grayscale, where n is a positive integer greater than 8 and t is an integer greater than 1.

[0029] Optionally, the driver module includes:

[0030] The first driving unit is configured to, when the image to be displayed is an m-bit image, where m is a positive integer and m is less than n: when the display panel adopts a first display mode, drive the display panel to display the image to be displayed according to a third correspondence between gray levels in the third gray level range and gray levels in the first gray level range, and the first correspondence; wherein, the third gray level range is the gray level range corresponding to the m-bit image, and the third gray level range is from gray level 0 to... Gray levels, wherein multiple gray levels in the third gray level range correspond to different gray levels in the first gray level range, and the gray levels in the third gray level range and the corresponding gray levels in the first gray level range use the same driving data; when the display panel adopts the second display mode, the image to be displayed is converted into an n-bit converted image, and the display panel is driven to display the converted image according to the first correspondence and the second correspondence.

[0031] The second driving unit is configured to, when the display panel adopts the first display mode, determine the driving data of the gray scale corresponding to the first corresponding relationship and the driving data of the gray scale corresponding to the second corresponding relationship. the driving data of the gray scale corresponding to the first corresponding relationship and the driving data of the gray scale corresponding to the second corresponding relationship. the driving data of the gray scale corresponding to the first corresponding relationship and the driving data of the gray scale corresponding to the second corresponding relationship. the driving data of the gray scale corresponding to the first corresponding relationship and the driving data of the gray scale corresponding to the second corresponding relationship. the driving data of the gray scale corresponding to the first corresponding relationship and the driving data of the gray scale corresponding to the second corresponding relationship.

[0032] Optionally, the first driving data comprises the driving data of the gray scale corresponding to the first corresponding relationship and the driving data of the gray scale corresponding to the second corresponding relationship. the driving data of the gray scale corresponding to the first corresponding relationship and the driving data of the gray scale corresponding to the second corresponding relationship.

[0033] The driving module comprises:

[0034] The data determination unit is configured to determine a first corresponding gray scale corresponding to a first gray scale in the first gray scale range, determine the driving data of the first corresponding gray scale by an interpolation algorithm according to the first corresponding relationship, and determine the driving data of the first corresponding gray scale as the driving data of the first gray scale; and / or determine a second corresponding gray scale corresponding to a second gray scale in the second gray scale range, determine the driving data of the second corresponding gray scale by an interpolation algorithm according to the driving data of the second corresponding gray scale and the driving data of the second gray scale corresponding to the second corresponding relationship, and determine the driving data of the second corresponding gray scale as the driving data of the second gray scale; wherein the first gray scale and the second gray scale are gray scales in the to-be-displayed picture. the driving data of the gray scale corresponding to the first corresponding relationship and the driving data of the gray scale corresponding to the second corresponding relationship. the driving data of the gray scale corresponding to the first corresponding relationship and the driving data of the gray scale corresponding to the second corresponding relationship.

[0035] The third driving unit is configured to drive the display panel to display the to-be-displayed picture according to the driving data of the first gray scale and / or the driving data of the second gray scale.

[0036] According to another aspect of the present application, there is provided a display device comprising a display panel and a driving device of the display panel according to any of the embodiments of the present application.

[0037] The present embodiment determines the driving data of the gray scale corresponding to the first corresponding relationship and the driving data of the gray scale corresponding to the second corresponding relationship. The gray scale is divided into a first gray scale range and a second gray scale range, the maximum display brightness of the first gray scale range is less than the display brightness of the second gray scale range, in actual display, the display panel is driven to display according to the first corresponding relationship between the first gray scale range and the first driving data when the display panel adopts the first display mode, and the display panel is driven to display according to the first corresponding relationship and the second corresponding relationship between the second gray scale range and the second driving data when the display panel adopts the second display mode, different display brightness requirements of the display panel can be met, and the first driving data corresponding to the first gray scale range and the second driving data corresponding to the second gray scale range can be determined in one gamma debugging process, without two times of gamma debugging, the debugging time is reduced, and the cost of the display panel is reduced.

[0038] It should be understood that the matters described in this section are not intended to identify key or important features of the embodiments of the application, nor are they used to limit the scope of the application. Other features of the application will become apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0039] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0040] Figure 1 is a flow chart of a driving method of a display panel provided by an embodiment of the present application;

[0041] Figure 2 is a schematic diagram of a driving device of a display panel provided by an embodiment of the present application;

[0042] Figure 3 is a schematic diagram of a display device provided by an embodiment of the present application. DETAILED DESCRIPTION

[0043] In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should be within the scope of protection of the present application.

[0044] It should be noted that the terms "first", "second", and the like in the description and claims of the application and the above drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or sequence. It should be understood that the data thus used can be interchanged, where appropriate, so that the embodiments of the application described herein can be carried out in other than the order shown or described herein. Furthermore, the terms "comprise" and "have", and any variations thereof, are intended to cover non-exclusive inclusion, for example, processes, methods, systems, products, or devices that include a series of steps or units without being limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products, or devices.

[0045] With the development of display technology, people have higher and higher requirements for the display effect of display panels. In order to adapt to different display scene requirements, different display modes are usually provided in the display panel. The display brightness ranges of different display modes are different. For example, the display brightness range of some display modes is 0-500 nit, and the display brightness range of some display modes is 0-800 nit. Then, a plurality of different display modes need to be debugged with a plurality of groups of gamma data, so that the manufacturing cost of the display panel is relatively high.

[0046] For example, in the related art, display devices mostly use optical fingerprints to unlock the screen. The fingerprint unlocking area needs relatively high brightness, such as at least 800 nit under normal circumstances, with a range of ±10%. Too high or too low brightness will have a negative impact on unlocking. Another parameter is considered during the manufacturing of the display device, which is the peak brightness. The peak brightness refers to the white brightness of 1% under a black background. Generally, the peak brightness needs to reach at least 1000 nit. For example, the peak brightness can be 1120 nit. The maximum display brightness of the display panel under the starry sky shooting mode or the High-Dynamic-Range (HDR) mode needs to reach the peak brightness, so as to have higher contrast and richer brightness performance under the starry sky mode or the HDR mode. For example, when a mobile phone is shooting the moon, the display shows a black sky with the moon and stars. If the peak brightness can reach 1000 nit, the moon and stars can be displayed brighter, and the picture effect looks much better than when the peak brightness is only 800 nit. Currently, in order to simultaneously meet the fingerprint recognition brightness requirement and the peak brightness requirement, a group of gamma data is usually debugged for fingerprint unlocking, and another group of gamma data is debugged for the starry sky mode or the HDR mode according to the peak brightness. However, debugging two groups of gamma data in order to achieve better display performance will make the display device production line debugging time longer, so that the manufacturing cost of the display panel is relatively high, and the display performance and low cost cannot be considered at the same time.

[0047] The embodiment of the present application provides a driving method of a display panel, Figure 1 is a flow chart of the driving method of the display panel provided by the embodiment of the present application, referring to Figure 1 The method comprises the following steps.

[0048] S110, determining a display mode currently adopted by the display panel; wherein the display mode comprises a first display mode and a second display mode, the maximum display brightness of the second display mode is greater than the maximum display brightness of the first display mode, and the minimum display brightness of the second display mode is the same as the minimum display brightness of the first display mode.

[0049] The display panel can comprise a plurality of different display modes, the maximum display brightness of the display panel is different in different display modes, and the minimum display brightness is the same, for example, the minimum display brightness can be 0 nit, and the maximum display brightness can be 2 nit, 10 nit, 50 nit, 100 nit, 200 nit, 500 nit, 600 nit, 800 nit or 1000 nit, etc. The maximum display brightness of the first display mode is a first preset brightness, the maximum display brightness of the second display mode is a second preset brightness, and the second preset brightness is greater than the first preset brightness. Exemplarily, the second preset brightness can be equal to the peak brightness of the display panel, the second display mode can be a starry sky mode or an HDR mode, and the first preset brightness can be a brightness with a small difference from the peak brightness of the display panel, for example, the first preset brightness can be a brightness required for optical fingerprint identification, and the first display mode can be a fingerprint identification mode or a high brightness mode (HBM). In addition, the first preset brightness and the second preset brightness can also be other brightnesses, and the first display mode and the second display mode can also be other display modes, and the embodiment does not make a specific limitation in this regard.

[0050] S120, when it is determined that the display mode currently adopted by the display panel is the first display mode, driving the display panel to display a to-be-displayed picture according to a first corresponding relationship between first driving data and a first gray scale range; and when it is determined that the display mode adopted by the display panel is the second display mode, driving the display panel to display the to-be-displayed picture according to the first corresponding relationship, second driving data and a second corresponding relationship between the second gray scale range. The first gray scale range and the second gray scale range are gray scale ranges corresponding to n-bit pictures, the first gray scale range is 0 gray scale to gray scale, and the second gray scale range is gray scale to The grayscale values ​​are defined as follows: the first driving data includes driving data corresponding to at least two different grayscale values ​​within a first grayscale range; the second driving data includes driving data corresponding to at least one grayscale value within a second grayscale range; and when the display panel is driven according to the first and second correspondences, the display brightness corresponding to each grayscale value within the second grayscale range is greater than [value missing]. The display brightness corresponding to the grayscale, where n is a positive integer greater than 8 and t is an integer greater than 1.

[0051] Specifically, when driving the display panel according to the first correspondence, The corresponding brightness is the maximum display brightness of the first display mode. When driving the display panel according to the first and second correspondences, The display brightness corresponding to the grayscale is the maximum display brightness of the second display mode.

[0052] When it is determined that the display panel is currently using the first display mode, driving the display panel to display the image to be displayed according to the first correspondence includes: when the grayscale level of the image to be displayed is... (The image to be displayed is an n-bit image), that is, the grayscale range used in the image to be displayed is from grayscale 0 to ( When using grayscale, you can... grayscale to The driving data for this range of gray levels is directly set to the same as... With equal gray levels, the driving data for each gray level in the image to be displayed can be determined directly based on the correspondence between each gray level and the range of the first gray level, combined with an interpolation algorithm. The display panel is then driven to display the image based on this determined driving data. When the number of gray levels in the image to be displayed is... (When the image to be displayed is a p-bit image), and p is not equal to n, the grayscale range used for the image to be displayed is 0-( The grayscale of the image to be displayed can be mapped to the first grayscale range. The driving data of each grayscale in the image to be displayed is set to be equal to the driving data of the corresponding grayscale in the first grayscale range. The driving data of any grayscale in the first grayscale range can be determined by the interpolation algorithm. In this way, the driving data of each grayscale in the image to be displayed can be determined, and the display panel is driven to display the image to be displayed according to the driving data.

[0053] When it is determined that the display panel adopts the second display mode, driving the display panel to display the image to be displayed according to the first and second correspondences includes: when the grayscale level of the image to be displayed is... When the image to be displayed is an n-bit image, the grayscale range used for the image to be displayed is from grayscale 0 to ( The grayscale level directly drives the display panel to display the image to be displayed based on the first and second correspondences. When the grayscale level of the image to be displayed is... when the to-be-displayed picture is a p-bit picture and p is not equal to n, the gray scale range of the to-be-displayed picture is 0 to (p-1) gray scales. When p is less than n, the to-be-displayed picture can be converted into an n-bit converted picture, and the display panel is directly driven to display the converted picture according to the first corresponding relationship and the second corresponding relationship. When p is greater than n, the gray scales of the to-be-displayed picture are corresponded to the first gray scale range and the second gray scale range, and the driving data of each gray scale in the to-be-displayed picture is set to be equal to the driving data of the corresponding gray scale in the first gray scale range and the second gray scale range, so that the driving data of each gray scale in the to-be-displayed picture can be determined, and the display panel is driven to display the to-be-displayed picture according to the driving data.

[0054] By setting n to be greater than 8, the first driving data and the second driving data are obtained according to the gray scale range from 0 gray scale to (n-1) gray scale, and when the display panel is driven to display the to-be-displayed picture, since most display panels adopt the gray scale range from 0 gray scale to (n-1) gray scale, i.e., 0-255 gray scales, for most display panels, 0-255 gray scales can find corresponding gray scales in the first gray scale range, so that corresponding driving data is found, and the display accuracy of the display picture is ensured. By setting the group of gray scales from 0 gray scale to (n-1) gray scale to be divided into the first gray scale range and the second gray scale range, and setting the maximum display brightness of the first gray scale range to be less than the display brightness of the second gray scale range, when the display panel adopts the first display mode, the display panel is driven to display according to the first corresponding relationship between the first gray scale range and the first driving data, and when the display panel adopts the second display mode, the display panel is driven to display according to the first corresponding relationship and the second corresponding relationship between the second gray scale range and the second driving data, so that different display brightness requirements of the display panel can be met, and the first driving data corresponding to the first gray scale range and the second driving data corresponding to the second gray scale range can be determined in one gamma adjustment process, without respectively performing two times of gamma adjustment, so that the adjustment time is reduced, and the cost of the display panel is reduced. Therefore, the scheme of the embodiment of the present application can meet different display brightness requirements of the display panel while reducing the cost.

[0055] Optionally, when it is determined that the display mode of the display panel is the second display mode, the display panel is driven to display the to-be-displayed picture according to the first corresponding relationship, and the second corresponding relationship between the second driving data and the second gray scale range, the display brightness corresponding to the gray scale is the peak brightness of the display panel;

[0056] Optionally, when it is determined that the display mode of the display panel is the second display mode, the display panel is driven to display the to-be-displayed picture according to the first corresponding relationship, and the second corresponding relationship between the second driving data and the second gray scale range, the display brightness corresponding to the gray scale is the peak brightness of the display panel;

[0057] ​when the display panel is driven to display the picture according to the first corresponding relationship and the second corresponding relationship, The display brightness corresponding to the gray scale is the fingerprint identification brightness of the display panel; the first display mode is a fingerprint identification mode or an HBM mode, and the second display mode is an HDR mode or a star sky shooting mode.

[0058] The maximum display brightness of the HBM mode can be the same as the maximum brightness of the fingerprint identification mode.

[0059] By setting the maximum display brightness of the first gray scale range as the fingerprint identification brightness of the display panel and the maximum display brightness of the second gray scale range as the peak brightness of the display panel, when the display panel is actually displayed in the fingerprint identification mode or the HBM mode, the display panel is driven according to the first corresponding relationship between the first gray scale range and the first driving data, and when the display panel is actually displayed in the HDR mode or the star sky shooting mode, the display panel is driven according to the first corresponding relationship and the second corresponding relationship, the optical fingerprint identification requirement of the display panel and the peak brightness requirement can be met, the first driving data corresponding to the first gray scale range and the second driving data corresponding to the second gray scale range can be determined in one gamma debugging process, and two gamma debugging processes are not needed, thereby reducing the debugging time and the cost of the display panel. Therefore, the scheme of the embodiment of the present application can meet the optical fingerprint identification requirement of the display panel and the peak brightness requirement while reducing the cost.

[0060] Optionally, when it is determined that the display panel currently adopts the first display mode, the display panel is driven to display the picture to be displayed according to the first corresponding relationship between the first driving data and the first gray scale range, and when it is determined that the display panel adopts the second display mode, the display panel is driven to display the picture to be displayed according to the first corresponding relationship and the second corresponding relationship between the second driving data and the second gray scale range.

[0061] In the case that the picture to be displayed is an m-bit picture, where m is a positive integer and m is less than n: when the display panel adopts the first display mode, the display panel is driven to display the picture to be displayed according to a third corresponding relationship between the gray scales in a third gray scale range and the gray scales in the first gray scale range and the first corresponding relationship; the third gray scale range is a gray scale range corresponding to the m-bit picture, and the third gray scale range is from 0 gray scale to The multiple gray scales in the third gray scale range correspond to different gray scales in the first gray scale range respectively, and the corresponding gray scales in the third gray scale range and the first gray scale range adopt the same driving data; when the display panel adopts the second display mode, the picture to be displayed is converted into an n-bit converted picture, and the display panel is driven to display the converted picture according to the first corresponding relationship and the second corresponding relationship.

[0062] When the image to be displayed is an n-bit image: when the display panel adopts the first display mode, determine... grayscale to grayscale driving data and The driving data corresponding to the gray levels are the same, based on the first correspondence and the newly determined... grayscale to The grayscale driving data drives the display panel to display the image to be displayed; when the display panel adopts the second display mode, the display panel is driven to display the image to be displayed according to the first correspondence and the second correspondence.

[0063] Specifically, when the image to be displayed is an m-bit image, the total number of gray levels that the display panel can display is: That is, the grayscale range that the display panel can display is from grayscale 0 to grayscale 1. Grayscale. When the image to be displayed is an n-bit image, the total number of grayscale levels that the display panel can display is: That is, the grayscale range that the display panel can display is from grayscale 0 to grayscale 1. Grayscale. The m-bit image can be the most frequently displayed image on the display panel, where n can be any integer greater than m. For example, n can be 10 and m can be 8. The following explanation uses n=10 and m=8 to illustrate the gamma debugging process and the display panel's display process:

[0064] When performing gamma adjustment, the total number of gray levels can be used as the reference. The debugging is based on the total number of gray levels. Under normal circumstances, the production line is based on the total number of gray levels. Debugging is performed based on this. The total number of gray levels is... The display panel can display a grayscale range of 0-255 grayscale levels, with a total of [number missing] grayscale levels. The display panel can display a grayscale range of 0-1023 grayscale levels. The total number of grayscale levels is... When debugging based on this, set a grayscale level of 1020 with the fingerprint recognition brightness as the target brightness. For grayscale levels below 1020, determine the target brightness based on the fingerprint recognition brightness and the gamma formula, and then debug based on the target brightness. The gamma can be set to 2.2. The gamma formula is as follows:

[0065] ;

[0066] Where Lgray is the target brightness corresponding to the grayscale level, gray is the grayscale binding point, and L1 is the fingerprint recognition brightness. Following the above debugging method, the driving data corresponding to each grayscale binding point in the range of 0-1020 can be obtained, thus obtaining the first driving data.

[0067] In addition, 1023 gray scale is debugged with the target luminance as the peak luminance to obtain the driving data corresponding to the 1023 gray scale, and the driving data of the 1022 gray scale and the 1021 gray scale can be obtained by interpolation according to the driving data of the 1023 gray scale and the 1020 gray scale. According to the above debugging mode, the driving data corresponding to the 1021-1023 gray scale, i.e., the second driving data, can be obtained.

[0068] Table 1

[0069]

[0070] When the display panel displays a picture, if the total number of gray scales adopted by the display device (for example, a mobile phone) is , i.e., the picture to be displayed by the display device is an 8-bit picture: (1) in the conventional use process, the gray scale range adopted by the display picture is 0-255 gray scale. Table 1 is a corresponding relationship table of 0-255 gray scale and 0-1023 gray scale. When the ambient luminance is high and the HBM mode is entered, 0-255 gray scale and 0-1023 gray scale can be corresponded according to Table 1, and the same driving data is adopted for 0-255 gray scale and the corresponding gray scale. Moreover, a plurality of gray scales in 0-1023 gray scale, i.e., 0, 4, 8, up to 1020 gray scale, are subjected to gamma debugging, and the driving data corresponding to the plurality of gray scales is obtained. The driving data of any gray scale in 0-1023 gray scale can be determined according to the driving data of the plurality of gray scales, so that the driving data of each gray scale in the picture to be displayed can be determined, and the actual display effect can be met. (2) when the fingerprint recognition unlocking is entered, the display device directly issues an instruction to enter the fingerprint recognition, and the display panel drives and displays the fingerprint unlocking area according to the driving data of 0-255 gray scale. The 255 gray scale corresponds to the 1020 gray scale, and the luminance thereof is 800 nit, which can meet the requirement of fingerprint recognition. (3) if the HDR mode or the star sky shooting mode is entered, and the local peak luminance needs to reach 1000 nit, the display device needs to issue a 10-bit picture switching instruction, the driving IC converts the picture to be displayed into a 10-bit conversion picture, and directly drives the display panel to display the conversion picture according to the first corresponding relationship and the second corresponding relationship. The local luminance (1023 gray scale) in the HDR mode or the star sky shooting mode can reach 1000 nit, which can meet the requirement of the customer.

[0071] If the total number of gray scales adopted by the display device is That is, the display device displays a 10-bit picture: (1) in the conventional use process, when the ambient brightness is high, the HBM mode is entered, and the R, G, and B values of 1023-1021 gray scales (drive the data) need to be completely written into the values of 1020 gray scales (drive data), then the display panel displays the picture according to the first corresponding relationship and the driving data corresponding to 1023-1021, and the highest brightness of 800 nit can be realized. (2) When the fingerprint recognition unlocking is entered, the R, G, and B values of 1023-1021 gray scales also need to be completely written into the values of 1020 gray scales, and the display panel drives and displays the fingerprint unlocking area according to the first corresponding relationship and the driving data corresponding to 1023-1021, and the brightness corresponding to 1020-1023 gray scales is 800 nit, which can meet the requirements of fingerprint recognition. (3) If the HDR mode or the star sky shooting mode is entered, the local peak brightness needs to reach 1000 nit, and the display panel directly displays the to-be-displayed picture according to the first corresponding relationship and the second corresponding relationship driving data, which can meet the display requirements.

[0072] Optionally, the display panel displays the to-be-displayed picture according to a third corresponding relationship between the gray scales in the third gray scale range and the gray scales in the first gray scale range and the first corresponding relationship, including:

[0073] According to the third corresponding relationship, the gray scale corresponding to the gray scale in the third gray scale range in the first gray scale range is determined.

[0074] According to the determined gray scale in the first gray scale range and the first corresponding relationship, the driving data corresponding to the gray scale in the third gray scale range is determined.

[0075] According to the driving data corresponding to the gray scale in the third gray scale range, the display panel displays the to-be-displayed picture.

[0076] Specifically, the third corresponding relationship can be the corresponding relationship shown in Table 1, and the gray scale corresponding to the gray scale in the third gray scale range can be found in the first gray scale range according to the third corresponding relationship. For example, if the third gray scale range is 0-255 gray scales and the first gray scale range is 0-1020 gray scales, according to the third corresponding relationship shown in Table 1, the gray scale corresponding to any gray scale in 0-255 can be found.

[0077] According to the gray scale determined in the first gray scale range and the first correspondence relationship, the driving data corresponding to the gray scale in the third gray scale range can be: if a gray scale in the third gray scale range corresponds to a b gray scale in the first gray scale range, the driving data corresponding to the b gray scale is directly searched in the first driving data; if the first driving data includes the driving data corresponding to the b gray scale, the driving data corresponding to the b gray scale is directly determined as the driving data corresponding to the a gray scale; if the first driving data does not include the driving data corresponding to the b gray scale, the driving data corresponding to the b gray scale is determined according to the first driving data interpolation, and the driving data corresponding to the b gray scale is determined as the driving data corresponding to the a gray scale.

[0078] Optionally, the first driving data includes the driving data corresponding to the gray scale, and the second driving data includes the driving data corresponding to the gray scale.

[0079] According to the first correspondence relationship, the second driving data and the second correspondence relationship of the second gray scale range, the display panel is driven to display the to-be-displayed picture, including:

[0080] determining a first corresponding gray scale corresponding to the first gray scale in the first gray scale range, determining the driving data of the first corresponding gray scale according to the first correspondence relationship and the interpolation algorithm, and determining the driving data of the first corresponding gray scale as the driving data of the first gray scale; and / or, determining a second corresponding gray scale corresponding to the second gray scale in the second gray scale range, determining the driving data of the second corresponding gray scale according to the driving data corresponding to the gray scale and the driving data corresponding to the gray scale, determining the driving data of the second corresponding gray scale according to the interpolation algorithm, and determining the driving data of the second corresponding gray scale as the driving data of the second gray scale; wherein the first gray scale and the second gray scale are gray scales in the to-be-displayed picture.

[0081] According to the driving data of the first gray scale and / or the driving data of the second gray scale, the display panel is driven to display the to-be-displayed picture.

[0082] wherein, when the to-be-displayed picture is an n-bit picture, the first gray scale is any gray scale from 0 gray scale to gray scale, and the second gray scale is gray scale to any gray scale in the gray scale range, at this time the first corresponding gray scale is equal to the first gray scale and the second corresponding gray scale is equal to the second gray scale. When the to-be-displayed picture is not an n-bit picture, the first gray scale corresponds to the first corresponding gray scale through the setting of the corresponding relationship, and the second gray scale corresponds to the second corresponding gray scale through the setting of the corresponding relationship. The first driving data includes driving data corresponding to at least two gray scales, and the driving data corresponding to any gray scale in the first gray scale range can be determined through interpolation such as linear interpolation or nonlinear interpolation. According to the driving data corresponding to the gray scale and the driving data corresponding to the gray scale, and the driving data corresponding to any gray scale in the first gray scale range can be determined through interpolation such as linear interpolation or nonlinear interpolation. the driving data corresponding to the gray scale to the driving data corresponding to any gray scale in the first gray scale range.

[0083] After the display panel receives the to-be-displayed picture, when the to-be-displayed picture includes the first gray scale, the first corresponding gray scale corresponding to the first gray scale is directly searched in the first gray scale range. When the driving data of the first corresponding gray scale is included in the first driving data, the driving data of the first corresponding gray scale can be directly determined as the driving data of the first gray scale. When the driving data of the first corresponding gray scale is not included in the first driving data, the driving data of the first corresponding gray scale can be obtained according to the interpolation algorithm and the first driving data, and the driving data of the first corresponding gray scale is determined as the driving data of the first gray scale.

[0084] When the to-be-displayed picture includes the second gray scale, the second corresponding gray scale corresponding to the second gray scale is directly searched in the second gray scale range. When the driving data of the second corresponding gray scale is included in the second driving data, the driving data of the second corresponding gray scale can be determined as the driving data of the second gray scale. When the driving data of the second corresponding gray scale is not included in the second driving data, the driving data of the second corresponding gray scale can be obtained through interpolation according to the interpolation algorithm and the second driving data, and the driving data of the second corresponding gray scale is determined as the driving data of the second gray scale.

[0085] When the to-be-displayed picture only includes the first gray scale, the first corresponding gray scale corresponding to the first gray scale can be searched in the first gray scale range, and then the driving data of the first corresponding gray scale is determined through the interpolation algorithm according to the first corresponding relationship, so as to determine the driving data of the first gray scale, and the display panel is driven to display the to-be-displayed picture according to the driving data of the first gray scale.

[0086] When the to-be-displayed picture only includes the second gray scale, the second corresponding gray scale corresponding to the second gray scale can be searched in the second gray scale range, and then the driving data of the second corresponding gray scale is determined through the interpolation algorithm according to the second corresponding relationship, so as to determine the driving data of the second gray scale, and the display panel is driven to display the to-be-displayed picture according to the driving data of the second gray scale. the driving data corresponding to the gray scale and The driving data corresponding to the gray scale is determined by an interpolation algorithm to determine the driving data of the second corresponding gray scale, thereby determining the driving data of the second gray scale, and driving the display panel to display the to-be-displayed picture according to the driving data of the second gray scale.

[0087] When the to-be-displayed picture includes both the first gray scale and the second gray scale, the first corresponding gray scale corresponding to the first gray scale is searched in the first gray scale range, the driving data of the first corresponding gray scale is determined by an interpolation algorithm according to the first corresponding relationship, thereby determining the driving data of the first gray scale, and the second corresponding gray scale corresponding to the second gray scale is searched in the second gray scale range, the driving data of the second corresponding gray scale is determined by an interpolation algorithm according to the second corresponding relationship, thereby determining the driving data of the second gray scale. The driving data corresponding to the gray scale is determined by an interpolation algorithm to determine the driving data of the second corresponding gray scale, thereby determining the driving data of the second gray scale, and driving the display panel to display the to-be-displayed picture according to the driving data of the second gray scale. The driving data corresponding to the gray scale is determined by an interpolation algorithm to determine the driving data of the second corresponding gray scale, thereby determining the driving data of the second gray scale, and driving the display panel to display the to-be-displayed picture according to the driving data of the second gray scale.

[0088] The first driving data includes the driving data corresponding to at least one gray scale. The second driving data includes the driving data corresponding to at least one gray scale. The first driving data includes the driving data corresponding to at least one gray scale, so that the display panel does not need to store too much data, does not need to occupy too much storage space of the display panel, and can quickly and accurately determine the driving data of the to-be-displayed picture by the interpolation algorithm, while ensuring the display effect of the display panel, without the need to set a large storage space, thereby reducing the cost of the display panel.

[0089] Optionally, the display mode of the display panel is determined according to a trigger instruction of a user, or the display mode of the display panel is determined according to the ambient brightness.

[0090] Specifically, when the ambient brightness is different, the display mode of the display panel is different, when the ambient brightness is low, the display panel adopts a display mode with a small maximum display brightness, and when the ambient brightness is high, the display panel adopts a display mode with a large maximum display brightness. For example, when the user is in a place with high ambient brightness outdoors, and it is detected that the ambient brightness is greater than a set value, the display panel adopts the HBM mode.

[0091] The user can also input a trigger instruction as needed to make the display panel switch to a corresponding display mode. For example, when the user touches the fingerprint recognition area, the display panel enters the fingerprint recognition mode, and when the user selects the HDR mode, the display panel enters the HDR mode.

[0092] The display mode of the display panel can be quickly and accurately determined according to the trigger instruction of the user or according to the ambient brightness, thereby meeting different display requirements of the display panel.

[0093] Optionally, m is greater than or equal to 8, and n is greater than or equal to 10.

[0094] Specifically, since most display panels adopt a display picture of 8-bit, by setting n to be greater than or equal to 10, the total number of gray scales is After the first driving data and the second driving data are obtained, when the display panel is driven to display the to-be-displayed picture, the 0-255 gray scales of most display panels can find corresponding gray scales in the first gray scale range, so that corresponding driving data is found, and the display accuracy of the display picture is ensured.

[0095] Figure 2 is a schematic diagram of a driving device of a display panel provided by an embodiment of the present application, referring to Figure 2 The embodiment of the present application further provides a driving device of a display panel, comprising:

[0096] The display mode determination module 210 is configured to determine a display mode currently adopted by the display panel; wherein the display mode comprises a first display mode and a second display mode, the maximum display brightness of the second display mode is greater than the maximum display brightness of the first display mode, and the minimum display brightness of the second display mode is the same as the minimum display brightness of the first display mode;

[0097] The driving module 220 is configured to drive the display panel to display the to-be-displayed picture according to a first corresponding relationship between the first driving data and the first gray scale range when it is determined that the display mode currently adopted by the display panel is the first display mode, and drive the display panel to display the to-be-displayed picture according to the first corresponding relationship, the second corresponding relationship between the second driving data and the second gray scale range when it is determined that the display mode adopted by the display panel is the second display mode.

[0098] The first gray scale range and the second gray scale range are gray scale ranges corresponding to n-bit pictures, the first gray scale range is from 0 gray scale to gray scale, and the second gray scale range is from gray scale to gray scale, the first driving data comprises driving data corresponding to at least two different gray scales in the first gray scale range, the second driving data comprises driving data corresponding to at least one gray scale in the second gray scale range, and the display brightness corresponding to each gray scale in the second gray scale range is greater than the display brightness corresponding to the t gray scale according to the first corresponding relationship and the second corresponding relationship, n is a positive integer greater than 8, and t is an integer greater than 1.

[0099] Optionally, the driving module 220 comprises:

[0100] ​The first driving unit is configured to, when the image to be displayed is an m-bit image, where m is a positive integer and m is less than n: when the display panel adopts a first display mode, drive the display panel to display the image to be displayed according to a third correspondence between gray levels in the third gray level range and gray levels in the first gray level range, and the first correspondence; wherein, the third gray level range is the gray level range corresponding to the m-bit image, and the third gray level range is from gray level 0 to... Gray levels, wherein multiple gray levels in the third gray level range correspond to different gray levels in the first gray level range, and the gray levels in the third gray level range and the corresponding gray levels in the first gray level range use the same driving data; when the display panel adopts the second display mode, the image to be displayed is converted into an n-bit converted image, and the display panel is driven to display the converted image according to the first correspondence and the second correspondence.

[0101] The second driving unit is used to determine the following when the display panel adopts the first display mode, in the case that the image to be displayed is an n-bit image: grayscale to grayscale driving data and The driving data corresponding to the gray levels are the same, based on the first correspondence and the newly determined... grayscale to The grayscale driving data drives the display panel to display the image to be displayed; when the display panel adopts the second display mode, the display panel is driven to display the image to be displayed according to the first correspondence and the second correspondence.

[0102] Optionally, the first driving data includes The driving data corresponding to the grayscale, the second driving data includes The driving data corresponding to grayscale;

[0103] The drive module 220 includes:

[0104] A data determination unit is configured to determine a first corresponding gray level in the first gray level range that corresponds to the first gray level, determine the driving data of the first corresponding gray level using an interpolation algorithm based on the first correspondence, and determine the driving data of the first corresponding gray level as the driving data of the first gray level; and / or, determine a second corresponding gray level in the second gray level range that corresponds to the second gray level, based on... The driving data corresponding to grayscale and The driving data corresponding to the grayscale is used to determine the driving data of the second corresponding grayscale using an interpolation algorithm, and the driving data of the second corresponding grayscale is determined as the driving data of the second grayscale; wherein, the first grayscale and the second grayscale are the grayscales in the image to be displayed.

[0105] The third driving unit is configured to drive the display panel to display the to-be-displayed picture according to the driving data of the first gray scale and / or the driving data of the second gray scale.

[0106] Optionally, the first driving unit comprises:

[0107] The gray scale determination subunit is configured to determine, according to a third correspondence relationship, a gray scale corresponding to a gray scale in the third gray scale range in the first gray scale range.

[0108] The driving data determination subunit is configured to determine, according to the determined gray scale in the first gray scale range and the first correspondence relationship, driving data corresponding to the gray scale in the third gray scale range.

[0109] The driving subunit is configured to drive the display panel to display the to-be-displayed picture according to the driving data corresponding to the gray scale in the third gray scale range.

[0110] Optionally, when it is determined that the display mode of the display panel is the second display mode, the display panel is driven to display the to-be-displayed picture according to the first correspondence relationship and the second correspondence relationship between the second driving data and the second gray scale range, the display brightness corresponding to the gray scale is the peak brightness of the display panel;

[0111] when the display panel is driven to display the to-be-displayed picture according to the first correspondence relationship and the display panel is driven to display the picture according to the first correspondence relationship and the second correspondence relationship, the display brightness corresponding to the gray scale is the fingerprint identification brightness of the display panel;

[0112] The first display mode is a fingerprint identification mode or an HBM mode, and the second display mode is an HDR mode or a star sky shooting mode.

[0113] Optionally, the display mode determination module 210 is specifically configured to:

[0114] determine the display mode of the display panel according to a trigger instruction of a user, or determine the display mode of the display panel according to an ambient brightness.

[0115] Optionally, m is greater than or equal to 8, and n is greater than or equal to 10.

[0116] The display device provided by the embodiment of the present application comprises: Figure 3 is a schematic diagram of a display device provided by the embodiment of the present application, referring to Figure 3 The display device comprises a display panel 100 and a display panel driving device 200 according to any embodiment of the present application.

[0117] It should be understood that the various forms of flow shown above can be used to reorder, add, or remove steps. For example, the steps recited in the present application can be performed in parallel, in series, or in a different order, as long as the desired results of the technical solutions of the present application can be achieved, which are not limited herein.

[0118] The above detailed description does not constitute a limitation on the protection scope of the present application. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A driving method of a display panel, characterized by, The method comprises the following steps: determining a display mode currently adopted by a display panel; wherein the display mode comprises a first display mode and a second display mode, the maximum display brightness of the second display mode is greater than the maximum display brightness of the first display mode, and the minimum display brightness of the second display mode is the same as the minimum display brightness of the first display mode; when it is determined that the display mode currently adopted by the display panel is the first display mode, driving the display panel to display a to-be-displayed picture according to a first corresponding relationship between first driving data and a first gray scale range; and when it is determined that the display mode adopted by the display panel is the second display mode, driving the display panel to display the to-be-displayed picture according to the first corresponding relationship, a second corresponding relationship between second driving data and a second gray scale range; The first gray scale range is 0 gray scale to The second gray scale range is The second gray scale range is The first driving data includes driving data corresponding to at least two different gray scales in the first gray scale range, the second driving data includes driving data corresponding to at least one gray scale in the second gray scale range, and when the display panel is driven according to the first corresponding relationship and the second corresponding relationship, the display brightness corresponding to each gray scale in the second gray scale range is greater than The display brightness corresponding to each gray scale in the second gray scale range is greater than the display brightness corresponding to the gray scale of 2t-1, n is a positive integer greater than 8, and t is an integer greater than 1.

2. The method of claim 1, wherein, when it is determined that the display mode currently adopted by the display panel is the first display mode, driving the display panel to display a to-be-displayed picture according to a first corresponding relationship between first driving data and a first gray scale range; and when it is determined that the display mode adopted by the display panel is the second display mode, driving the display panel to display the to-be-displayed picture according to the first corresponding relationship, a second corresponding relationship between second driving data and a second gray scale range, comprising: In the case that the to-be-displayed picture is an m-bit picture, where m is a positive integer and m is less than n: when the display panel adopts the first display mode, the display panel is driven to display the to-be-displayed picture according to a third correspondence relationship between the gray scales in a third gray scale range and the gray scales in a first gray scale range and the first correspondence relationship; where the third gray scale range is a gray scale range corresponding to the m-bit picture, the third gray scale range is from 0 gray scale to m gray scales, the gray scales in the third gray scale range respectively correspond to different gray scales in the first gray scale range, and the corresponding gray scales in the third gray scale range and the first gray scale range adopt the same driving data; when the display panel adopts the second display mode, the to-be-displayed picture is converted into a converted picture with n bits, and the display panel is driven to display the converted picture according to the first correspondence relationship and the second correspondence relationship. In the case that the to-be-displayed picture is an n-bit picture: when the display panel adopts the first display mode, determining the driving data corresponding to the gray scale the driving data corresponding to the gray scale the driving data corresponding to the gray scale the driving data corresponding to the gray scale the driving data corresponding to the gray scale 3. The method of claim 2, wherein: driving the display panel to display the to-be-displayed picture according to a third corresponding relationship between the gray scales in the third gray scale range and the gray scales in the first gray scale range and the first corresponding relationship, comprising: determining the gray scales in the third gray scale range corresponding to the gray scales in the first gray scale range according to the third corresponding relationship; determining the driving data corresponding to the gray scales in the third gray scale range according to the gray scales determined in the first gray scale range and the first corresponding relationship; driving the display panel to display the to-be-displayed picture according to the driving data corresponding to the gray scales in the third gray scale range.

4. The method of claim 1, wherein: When it is determined that the display mode adopted by the display panel is the second display mode, the display panel is driven to display the to-be-displayed picture according to the first correspondence relationship and a second correspondence relationship between the second driving data and a second gray scale range, The display brightness corresponding to the gray scale is the peak brightness of the display panel. When the display panel is driven to display the picture according to the first correspondence relationship and is driven to display the picture according to the first correspondence relationship and the second correspondence relationship, The display brightness corresponding to the gray scale is the fingerprint identification brightness of the display panel. the first display mode is a fingerprint identification mode or a high brightness (HBM) mode, and the second display mode is a high dynamic range (HDR) mode or a star sky shooting mode.

5. The method of claim 1, wherein: The first driving data includes The second driving data includes driving data corresponding to gray scales The second driving data includes driving data corresponding to gray scales driving the display panel to display the to-be-displayed picture according to the first corresponding relationship, a second corresponding relationship between second driving data and a second gray scale range, comprises: determining a first corresponding gray scale corresponding to the first gray scale in the first gray scale range, determining driving data of the first corresponding gray scale by an interpolation algorithm according to the first corresponding relationship, and determining the driving data of the first corresponding gray scale as the driving data of the first gray scale; and / or determining a second corresponding gray scale corresponding to the second gray scale in the second gray scale range, determining driving data of the second corresponding gray scale by an interpolation algorithm according to the second corresponding relationship, and determining the driving data of the second corresponding gray scale as the driving data of the second gray scale; wherein the first gray scale and the second gray scale are gray scales in the picture to be displayed. determining a first corresponding gray scale corresponding to the first gray scale in the first gray scale range, determining driving data of the first corresponding gray scale by an interpolation algorithm according to the first corresponding relationship, and determining the driving data of the first corresponding gray scale as the driving data of the first gray scale; and / or determining a second corresponding gray scale corresponding to the second gray scale in the second gray scale range, determining driving data of the second corresponding gray scale by an interpolation algorithm according to the second corresponding relationship, and determining the driving data of the second corresponding gray scale as the driving data of the second gray scale; wherein the first gray scale and the second gray scale are gray scales in the picture to be displayed. determining a first corresponding gray scale corresponding to the first gray scale in the first gray scale range, determining driving data of the first corresponding gray scale by an interpolation algorithm according to the first corresponding relationship, and determining the driving data of the first corresponding gray scale as the driving data of the first gray scale; and / or determining a second corresponding gray scale corresponding to the second gray scale in the second gray scale range, determining driving data driving the display panel to display the to-be-displayed picture according to the driving data of the first gray scale and / or the driving data of the second gray scale.

6. The method of claim 1, wherein, determining the display mode currently adopted by the display panel comprises: determining the display mode of the display panel according to a trigger instruction of a user, or determining the display mode of the display panel according to an ambient brightness.

7. The method of claim 2, wherein: m is greater than or equal to 8, and n is greater than or equal to 10.

8. A driving device of a display panel, characterized by comprising: The method comprises the following steps: a display mode determination module is configured to determine a display mode currently adopted by a display panel; wherein the display mode comprises a first display mode and a second display mode, the maximum display brightness of the second display mode is greater than the maximum display brightness of the first display mode, and the minimum display brightness of the second display mode is the same as the minimum display brightness of the first display mode; The driving module is configured to drive the display panel to display the to-be-displayed picture according to a first corresponding relationship between the first driving data and a first gray scale range when it is determined that the display panel currently adopts the first display mode, and drive the display panel to display the to-be-displayed picture according to the first corresponding relationship, second driving data and a second corresponding relationship between the second gray scale range when it is determined that the display panel adopts the second display mode. Wherein, the first grayscale range and the second grayscale range are the grayscale ranges corresponding to an n-bit image, and the first grayscale range is from grayscale 0 to grayscale 2. grayscale, the second grayscale range is grayscale to The grayscale values ​​are defined as follows: the first driving data includes driving data corresponding to at least two different grayscale values ​​within a first grayscale range; the second driving data includes driving data corresponding to at least one grayscale value within a second grayscale range; and when driving the display panel according to the first and second correspondences, the display brightness corresponding to each grayscale value within the second grayscale range is greater than [value missing]. The display brightness corresponding to the grayscale, where n is a positive integer greater than 8 and t is an integer greater than 1.

9. The apparatus of claim 8, wherein, The driving module comprises: The first driving unit is configured to, in a case where the to-be-displayed picture is an m-bit picture, where m is a positive integer and m is less than n: when the display panel adopts the first display mode, driving the display panel to display the to-be-displayed picture according to a third correspondence relationship between a gray scale in a third gray scale range and a gray scale in a first gray scale range and the first correspondence relationship, where the third gray scale range is a gray scale range corresponding to the m-bit picture, the third gray scale range is from 0 gray scale to a maximum gray scale in the third gray scale range, a plurality of gray scales in the third gray scale range respectively correspond to different gray scales in the first gray scale range, and the corresponding gray scales in the third gray scale range and the first gray scale range adopt the same driving data; and when the display panel adopts the second display mode, converting the to-be-displayed picture into a converted picture of n bits, and driving the display panel to display the converted picture according to the first correspondence relationship and a second correspondence relationship. The second driving unit is configured to, when the to-be-displayed picture is an n-bit picture, determine the driving data of the gray scale corresponding to the second display mode the driving data of the gray scale corresponding to the second display mode the driving data of the gray scale corresponding to the second display mode the driving data of the gray scale corresponding to the second display mode the driving data of the gray scale corresponding to the second display mode the driving data of the gray scale corresponding to the second display mode 10. The apparatus of claim 8, wherein: The first driving data includes The second driving data includes driving data corresponding to gray scales The second driving data includes driving data corresponding to gray scales The driving module comprises: A data determination unit is configured to determine a first corresponding gray level in the first gray level range that corresponds to the first gray level, determine the driving data of the first corresponding gray level using an interpolation algorithm based on the first correspondence, and determine the driving data of the first corresponding gray level as the driving data of the first gray level; and / or, determine a second corresponding gray level in the second gray level range that corresponds to the second gray level, based on... The driving data corresponding to grayscale and The driving data corresponding to the grayscale is used to determine the driving data of the second corresponding grayscale using an interpolation algorithm, and the driving data of the second corresponding grayscale is determined as the driving data of the second grayscale; wherein, the first grayscale and the second grayscale are the grayscales in the image to be displayed. The third driving unit is configured to drive the display panel to display the to-be-displayed picture according to the driving data of the first gray scale and / or the driving data of the second gray scale.

11. A display device comprising: A display panel and a driving apparatus of the display panel according to any one of claims 8-10.

Images