Drive method for a display and a display

Abstract

The present application relates to a driving method and a display for a display, and the driving method includes: obtaining a first gray-scale extreme value of a target frame image according to the display data of the target frame image; adjusting a first power supply voltage according to the first gray-scale extreme value to obtain a second power supply voltage; and driving the display to perform display according to the second power supply voltage and the display data of the target frame image. The present application can dynamically adjust the second power supply voltage, ensure the display effect, and reduce the energy consumption of the display panel.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display driving method and a display. Background Art

[0002] Large-size, high-refresh-rate, and high-resolution display panels generally consume too much power. Therefore, how to reduce the power consumption of large-size, high-refresh-rate, and high-resolution display panels is a problem worth studying, especially in the current environment of controlling ecological and environmental pollution and improving the environmental performance of energy-consuming products.

[0003] However, the solutions of the related art consume too much power in practical applications. How to reduce the power consumption of the display panel while ensuring the quality of the displayed image is a problem worth studying.

[0004] Technical issues

[0005] The present application mainly aims at the technical problem of how to reduce the power consumption of the display panel while ensuring the display image quality.

[0006] Technical Solutions

[0007] In view of this, the present application proposes a display driving method and a display, which can dynamically and adaptively adjust the second power supply voltage, thereby further reducing the energy consumption of the display panel while ensuring the display effect of the display panel.

[0008] According to one aspect of the present application, a method for driving a display is provided, the method comprising: obtaining a first grayscale extreme value of a target frame image according to display data of the target frame image; adjusting a first power supply voltage according to the first grayscale extreme value to obtain a second power supply voltage, the first power supply voltage being used to drive the display to display; and driving the display to display according to the second power supply voltage and the display data of the target frame image.

[0009] According to another aspect of the present application, a display is provided, comprising: a first acquisition module, electrically connected to a second acquisition module, the first acquisition module being used to obtain a first grayscale extreme value of a target frame image according to display data of the target frame image; a second acquisition module, electrically connected to the first acquisition module and the display module, the second acquisition module being used to adjust a first power supply voltage according to the first grayscale extreme value to obtain a second power supply voltage, the first power supply voltage being used to drive the display to display; and a display module, electrically connected to the second acquisition module, the display module being used to drive the display to display according to the second power supply voltage and the display data of the target frame image.

[0010] Beneficial Effects

[0011] By obtaining the first grayscale extreme value of the target frame image according to the display data of the target frame image, then adjusting the first power supply voltage according to the first grayscale extreme value to obtain the second power supply voltage, and finally driving the display to display according to the second power supply voltage and the display data of the target frame image, according to various aspects of the present application, the second power supply voltage can be dynamically and adaptively adjusted, thereby further reducing the power consumption of the display panel while ensuring the display effect of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The technical solutions and other beneficial effects of the present application will be made obvious by specifically describing the specific embodiments of the present application in conjunction with the accompanying drawings.

[0013] Figure 1 A flowchart showing the driving method of the display in the embodiment of the present application.

[0014] Figure 2 A schematic diagram before grayscale transformation in the embodiment of the present application.

[0015] Figure 3 A schematic diagram after grayscale transformation in the embodiment of the present application.

[0016] Figure 4 A schematic diagram showing the driving method of the display in the embodiment of the present application.

[0017] Figure 5 A schematic diagram showing the structure of the display in the embodiment of the present application.

[0018] Embodiments of the Present Invention

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of the present application.

[0020] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present application, "a plurality of" means two or more, unless otherwise specifically defined.

[0021] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "mounted", "connected" and "coupled" shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection or an integral connection; it may be a mechanical connection, an electrical connection or a connection capable of mutual communication; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0022] The following disclosure provides many different embodiments or examples for implementing 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 present application. In addition, the present application may repeat reference numerals and / or reference letters in different examples. This repetition is for the purpose of simplification and clarity and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present 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. In some instances, methods, means, elements and circuits well known to those skilled in the art are not described in detail so as to highlight the gist of the present application.

[0023] The present application provides a driving method for a display, and the driving method for the display includes: obtaining a first gray-scale extreme value of a target frame image according to the display data of the target frame image; adjusting a first power supply voltage according to the first gray-scale extreme value to obtain a second power supply voltage, where the first power supply voltage is used to drive the display to display; driving the display to display according to the second power supply voltage and the display data of the target frame image.

[0024] By obtaining the first gray-scale extreme value of the target frame image according to the display data of the target frame image, then adjusting the first power supply voltage according to the first gray-scale extreme value to obtain the second power supply voltage, and finally driving the display to display according to the second power supply voltage and the display data of the target frame image, the present application can dynamically and adaptively adjust the second power supply voltage, thereby further reducing the power consumption of the display panel while ensuring the display effect of the display panel.

[0025] Figure 1 The flowchart of the driving method for the display according to the embodiment of the present application is shown.

[0026] As Figure 1 shown, the display includes a driving module and a display panel, the driving module is electrically connected to the display panel, and the display data of the target frame image is pre-stored in the driving module. The driving method for the display includes:

[0027] Step S10: Obtaining a first gray-scale extreme value of a target frame image according to the display data of the target frame image;

[0028] Wherein, the display data of the target frame image is pre-stored in the driving module. For example, a memory may be set in the driving module to pre-store the display data of the target frame image. Of course, the display screen of the display panel may include multiple frames, and the display data of all frames of the display panel may also be pre-stored in the driving module.

[0029] Further, the target frame image of the display panel includes multiple pixel points, and at least one pixel point is preset with a gray scale corresponding to the pixel point. The display data of the target frame image may be represented by a one-dimensional array or a multi-dimensional array, and each element in the array may correspond to each pixel point of the display screen, and is used to drive each pixel in the display panel to display according to the preset gray scale. It can be understood that the present application does not limit how the display data is represented.

[0030] Further, obtaining a first gray-scale extreme value of a target frame image according to the display data of the target frame image includes:

[0031] Step S101: Obtaining a first gray-scale range of a target frame image according to the display data of the target frame image;

[0032] Step S102: Obtain the first gray-scale extreme value of the target frame image according to the first gray-scale range.

[0033] Further, the first gray-scale extreme value of the target frame image may be the maximum value of multiple first gray-scales of the target frame image. Wherein, the first gray-scale may be a pre-set gray-scale, and the display data of the target frame image may include multiple first gray-scales, and each first gray-scale corresponds to a pixel point of the target frame image. For example, the gray-scales of the display data of all frames of the display panel may be represented by 8-bit binary numbers, and the representation range of the gray-scales is from 0 to 255. For a frame of display screen, this frame of display screen may include 1024*768 pixels, and the first gray-scale range of each pixel of this frame of display screen may be from 16 to 128, that is, for this frame of display screen, the first gray-scale extreme value of this frame of display screen may be 128, that is, the maximum gray-scale of this frame of display screen.

[0034] Further, the target frame image may be divided into multiple display areas, the first gray-scale extreme value is the maximum value of multiple first gray-scales of at least one display area among the multiple display areas, and the second gray-scale extreme value is the maximum value of multiple second gray-scales of at least one display area among the multiple display areas. The maximum value of the gray-scales of each display area may be different. Therefore, the first gray-scale extreme value of the target frame image may also be the maximum value of multiple first gray-scales in a display area of this frame of image. For example, the target frame image may be divided into two display areas. The first gray-scale range of the first display area is from 16 to 108, and the first gray-scale range of the second display area is from 32 to 116. At this time, the first gray-scale extreme value of the target frame image may be 108, the maximum value of the gray-scales of the first display area, or 116, the maximum value of the gray-scales of the second display area.

[0035] It should be noted that it is also possible to arbitrarily select a first gray-scale within the first gray-scale range of the target frame image for processing, as long as the selected first gray-scale is beneficial to reducing the power consumption of the display panel by using the embodiments of the present application. In the embodiments of the present application, the first gray-scale extreme value of the target frame image is a preferred solution, and the present application does not limit how to select the first gray-scale extreme value of the target frame image.

[0036] Further, before the step of adjusting the first power supply voltage according to the first gray-scale extreme value to obtain the second power supply voltage, it further includes:

[0037] Step S11: Transform multiple first gray-scales of the target frame image to obtain the second gray-scale extreme value of the target frame image.

[0038] Further, since the target frame image may include multiple first gray levels, and each pixel point in the target frame image may correspond to a first gray level, therefore, each of the first gray levels can be transformed to obtain multiple transformed second gray levels. Of course, during the process of transforming the multiple first gray levels of the target frame image, the multiple first gray levels of the target frame image can also be divided into multiple sub-intervals and transformed segment by segment according to the multiple sub-intervals. For another example, during the process of transforming the multiple first gray levels of the target frame image, only the first gray levels corresponding to some pixel points in the target frame image can be transformed, while the first gray levels corresponding to other pixel points in the target frame image are not transformed. It can be understood that this application does not limit how to transform the multiple first gray levels of the target frame image.

[0039] It should be noted that the driving module transforms the multiple first gray levels of the target frame image based on the non-linear characteristic between visual perception and brightness to obtain multiple transformed second gray levels. Among them, visual perception can be characterized by the lightness value that can be observed by the human eye, and brightness can be characterized by the brightness factor. Therefore, based on the non-linear relationship between the visual perception and brightness of the image, statistical analysis can be performed on each pixel point of the target frame image to obtain the range of the lightness value of the target frame image. Of course, statistical analysis can also be performed on the gray levels of the target frame image to obtain the range of the gray levels.

[0040] Further, transforming the multiple first gray levels of the target frame image to obtain the second gray level extreme value of the target frame image includes:

[0041] Step S111: Transform the multiple first gray levels of the target frame image to obtain multiple transformed second gray levels;

[0042] Step S112: Obtain the second gray level extreme value of the target frame image according to the multiple transformed second gray levels.

[0043] Among them, each second gray level in the multiple transformed second gray levels may correspond to one first gray level before transformation, or may correspond to multiple first gray levels before transformation. It can be understood that different transformation methods will produce different corresponding relationships between the first gray level and the second gray level, and this application does not limit the corresponding relationship between the first gray level and the second gray level.

[0044] Further, the second gray-scale extreme value is the maximum value among multiple second gray-scales of the target frame image. That is, the second gray-scale extreme value has a similar meaning to the first gray-scale extreme value. For example, for a frame of a display screen, the frame of the display screen may include 1024 * 768 pixels, and the first gray-scale range of each pixel of the frame of the display screen may be from 16 to 128. That is, for the frame of the display screen, the first gray-scale extreme value of the frame of the display screen may be 128. After transforming multiple first gray-scales of the target frame image, the second gray-scale range of each pixel of the frame of the display screen may be from 32 to 216, and the first gray-scale extreme value of the frame of the display screen may be 216.

[0045] Further, transforming multiple first gray-scales of the target frame image to obtain multiple transformed second gray-scales includes: Step S1111: Divide the first gray-scale range of the target frame image into multiple sub-intervals;

[0046] Step S1112: According to the divided multiple sub-intervals and a preset transformation coefficient, transform multiple first gray-scales of the target frame image to obtain multiple transformed second gray-scales.

[0047] Exemplarily, Step S2012 can be expressed by Equation (1) as follows:

[0048]

[0049] Among them, Dinn can represent the first gray-scale before transformation of the nth pixel point in the input target frame image; λ1 can represent the coefficient corresponding to Dinn when the first gray-scale of the nth pixel point in the input target frame image is in the range of C0 to C1; λ2 can represent the coefficient corresponding to Dinn when the gray-scale of the nth pixel point in the target frame image is in the range of C1 to C2. By analogy, λm can represent the coefficient corresponding to Dinn when the gray-scale of the nth pixel point in the target frame image is in the range of Cm-1 to Cm. Dout(n) can represent the second gray-scale after transformation of the nth pixel point in the target frame image. m can be used to represent the number of the sub-intervals. In one example, C0 can be 0 and Cm can be 255.

[0050] Further, divide the first gray-scale range of the target frame image into multiple sub-intervals. For example, for a frame of a display screen, the frame of the display screen may include 1024 * 768 pixels, and the first gray-scale range of each pixel of the frame of the display screen may be from 16 to 128. At this time, C0 can be 16, C1 can be 32, and Cm can be 126. It can be understood that this application does not limit how to divide multiple sub-intervals and the number of sub-intervals.

[0051] Further, for the first gray level corresponding to at least one pixel of the target frame image, the first gray level can be transformed according to Equation (1). For example, a transformation coefficient can be assigned to the first gray level, and the transformation coefficient can be multiplied by the first gray level to obtain a second gray level corresponding to the first gray level. The transformation coefficient can be pre-stored in the memory. It can be understood that the present application does not limit how the transformation coefficient is determined.

[0052] By dividing the first gray level range of the target frame image into multiple sub-intervals, and transforming multiple first gray levels of the target frame image according to the divided multiple sub-intervals and a preset transformation coefficient to obtain multiple transformed second gray levels, the embodiments of the present application can flexibly configure the transformation of the gray levels of the target frame image, and further can dynamically and adaptively adjust the first power supply voltage in different application scenarios to optimize the adjustment of the first power supply voltage and further save power consumption. Step S20: Adjust the first power supply voltage according to the first gray level extreme value to obtain a second power supply voltage, where the first power supply voltage is used to drive the display to display;

[0053] Specifically, adjusting the first power supply voltage according to the first gray level extreme value to obtain a second power supply voltage includes: Step S201: Determine a first gamma voltage corresponding to the first gray level extreme value according to the first gray level extreme value;

[0054] Step S202: Determine a gamma reference voltage according to the first gamma voltage;

[0055] Step S203: Adjust the first power supply voltage according to the gamma reference voltage to obtain a second power supply voltage.

[0056] For example, to determine the gamma reference voltage according to the first gamma voltage, the gamma reference voltage corresponding to the first gamma voltage can be first determined, and then a new gamma reference voltage can be re-determined. Since each level of the first gamma voltage is associated with the gamma reference voltage, after the new gamma reference voltage is re-determined, other levels of the first gamma voltage will be adjusted synchronously as a whole.

[0057] Figure 2 A schematic diagram before the gray level transformation according to the embodiments of the present application is shown. Figure 3 A schematic diagram after the gray level transformation according to the embodiments of the present application is shown.

[0058] Such as Figure 2 and Figure 3 shown, the horizontal axis can represent voltage, and the vertical axis can represent gray level. In Figure 2 , before the first gray level transformation, it can be seen that the maximum value of the first gray level of the target frame image can correspond to the 10th level of gamma voltage; in Figure 3In the case where the first gray-scale transformation is performed, it can be seen that the maximum value of the second gray-scale of the target frame image can correspond to the first-level gamma voltage. That is, after the transformation, the maximum value of the gray-scale of the target frame image can be larger than the maximum value of the gray-scale before the transformation.

[0059] By using the piecewise function in Equation (1) for transformation, the embodiments of the present application can adapt the gray-scale of the target frame to the first power supply voltage, ensuring the quality of the display screen after adjusting the first power supply voltage.

[0060] Among them, the first gray-scale extreme value can be the first gray-scale extreme value among the multiple first gray-scales of the target frame image before the transformation, and the second gray-scale extreme value can be the second gray-scale extreme value among the multiple second gray-scales of the target frame image before the transformation. The first gray-scale extreme value and the second gray-scale extreme value can be different. In the embodiments of the present application, by using the difference between the first gray-scale extreme value before the transformation and the second gray-scale extreme value after the transformation to adjust the preset first power supply voltage, the minimum first power supply voltage required to ensure the optimal display can be found, and this minimum first power supply voltage is used as the second power supply voltage, thereby further reducing the power consumption of the display panel while ensuring the display effect of the display panel.

[0061] Furthermore, adjusting the first power supply voltage according to the first gray-scale extreme value to obtain the second power supply voltage includes: Step S21: Adjusting the first power supply voltage according to the first gray-scale extreme value and the second gray-scale extreme value to obtain the second power supply voltage.

[0062] Specifically, adjusting the first power supply voltage according to the first gray-scale extreme value and the second gray-scale extreme value to obtain the second power supply voltage includes:

[0063] Step S211: Determining the first gamma voltage corresponding to the first gray-scale extreme value according to the first gray-scale extreme value, and determining the second gamma voltage corresponding to the second gray-scale extreme value according to the second gray-scale extreme value;

[0064] Step S212: Determining the gamma reference voltage according to the second gamma voltage;

[0065] Step S213: Adjusting the preset first power supply voltage according to the gamma reference voltage and the first gamma voltage to obtain the second power supply voltage.

[0066] In one example, 14 levels of gamma voltages are pre-stored in the driving module, and each level of gamma voltage can correspond to a gray scale. For example, the gamma voltage corresponding to a gray scale of 0 can be the first level of gamma voltage, i.e., gamma_1; the gamma voltage corresponding to a gray scale of 228 can be the 14th level of gamma voltage, i.e., gamma_14. In addition, the 14 levels of gamma voltages can correspond to a first power supply voltage (i.e., AVDD voltage). It should be noted that multiple groups of gamma voltages can be set in the driving module, and each group of gamma voltages can include 14 levels of gamma voltages. It can be understood that the present application does not limit the correspondence relationship among the gray scale, gamma voltage, and the first power supply voltage.

[0067] Further, determining the first gamma voltage corresponding to the first gray scale extreme value according to the first gray scale extreme value can be expressed by Equation (2) as follows:

[0068] gamma_num = f1(Din max )

[0069] wherein, Dinmax can represent the first gray scale extreme value of the input target frame image; gamma_num represents the gamma voltage (i.e., the first gamma voltage) corresponding to the first gray scale extreme value of the target frame image. num can represent the number of levels of the gamma voltage. For example, gamma_num can be gamma_1 or gamma_3.

[0070] Similarly, Doutmax can represent the second gray scale extreme value of the transformed target frame image. Using Equation (2) and taking Doutmax as the input, the second gamma voltage gamma_num' corresponding to the second gray scale extreme value can be obtained.

[0071] Further, the pre-set first power supply voltage can be represented by a string of binary digits. For example, 1010 can represent that the first power supply voltage is 10V. The pre-set first power supply voltage can be pre-stored in the memory. It can be understood that the present application does not limit how the power supply voltage is represented.

[0072] Further, the gamma reference voltage can be used to determine the second power supply voltage. Determining the gamma reference voltage according to the second gamma voltage can be expressed by Equation (3) as follows:

[0073] gamma_ref = f2(gamma_num')

[0074] wherein, gamma_ref represents the gamma reference voltage, and gamma_num' represents the second gamma voltage corresponding to the second gray scale extreme value of the target frame image.

[0075] Further, the first power supply voltage set in advance is adjusted according to the gamma reference voltage and the first gamma voltage to obtain a second power supply voltage, which can be expressed by Equation (4) as follows:

[0076] AVDD' = f3(gamma_num, gamma_ref)

[0077] Among them, AVDD’ represents the second power supply voltage obtained after adjusting the first power supply voltage set in advance.

[0078] It should be noted that in the embodiments of the present application, the functions f1, f2, and f3 may be the same or different. It can be understood that in practical applications, the corresponding functions can be configured according to actual needs, and the present application does not limit the functions f1, f2, and f3.

[0079] Step S30: Drive the display to display according to the second power supply voltage and the display data of the target frame image. It should be noted that the driving module can also drive the display panel to display according to the second power supply voltage and the display data of the target frame image corresponding to the second gray level. That is, the display data of the target frame image can include both the first gray level and the transformed second gray level. In addition, the driving module can first determine the gamma reference voltage according to the first gamma voltage; the driving module adjusts the first power supply voltage set in advance according to the gamma reference voltage and the second gamma voltage to obtain a second power supply voltage.

[0080] Further, the driving method of the display further includes:

[0081] Step S40: Adjust the driving power of the display panel according to the second power supply voltage.

[0082] For example, adjusting the driving power of the display panel according to the second power supply voltage can be expressed by Equation (5) as follows:

[0083] Power = AVDD’ * I

[0084] Among them, Power can represent the power of the display panel in the embodiments of the present application, and I can represent the current corresponding to AVDD’. Since AVDD’ can be minimized while ensuring the display quality in the driving method of the present application, the energy consumption of the display panel can be further reduced while ensuring the display effect of the display panel.

[0085] Figure 4 A schematic diagram showing the driving method of the display in the embodiments of the present application.

[0086] As Figure 4As shown, in the embodiments of the present application, exemplarily, the input image data can be cached first, and then through image analysis, the first gray scale range of the target frame image and the first gray scale extreme value of the target frame image are found, and the input display data is adjusted according to the first gray scale range of the target frame image to obtain the adjusted input image data and multiple second gray scales. Then, the second gray scale extreme value and the second gamma voltage corresponding to the second gray scale extreme value can be found among the multiple second gray scales, and the gamma reference voltage is calculated. At the same time, the first gray scale extreme value and the first gamma voltage corresponding to the first gray scale extreme value can also be calculated. Finally, the adjusted AVDD value (i.e., the second power supply voltage) is calculated, and the external power supply driver is adjusted according to the second power supply voltage. Finally, together with the adjusted input image data, the display panel is driven to display the picture. It can be understood that Figure 4 the order in

[0087] The present application also provides a display, which includes: a first acquisition module electrically connected to a second acquisition module. The first acquisition module is used to obtain the first gray scale extreme value of the target frame image according to the display data of the target frame image; a second acquisition module electrically connected to the first acquisition module and a display module. The second acquisition module is used to adjust the first power supply voltage according to the first gray scale extreme value to obtain a second power supply voltage, and the first power supply voltage is used to drive the display to display; a display module electrically connected to the second acquisition module. The display module is used to drive the display to display according to the second power supply voltage and the display data of the target frame image.

[0088] Further, the first acquisition module includes: a first gray scale range acquisition module for obtaining the first gray scale range of the target frame image according to the display data of the target frame image; a first gray scale extreme value acquisition module for obtaining the first gray scale extreme value of the target frame image according to the first gray scale range.

[0089] Further, the second acquisition module includes: a first gamma voltage determination module for determining the first gamma voltage corresponding to the first gray scale extreme value according to the first gray scale extreme value; a first gamma reference voltage determination module for determining the gamma reference voltage according to the first gamma voltage; a first adjustment module for adjusting the first power supply voltage according to the gamma reference voltage to obtain a second power supply voltage.

[0090] Further, the display further includes: a third acquisition module for transforming multiple first gray scales of the target frame image to obtain the second gray scale extreme value of the target frame image.

[0091] Further, the third acquisition module includes: a second grayscale acquisition module, configured to transform multiple first grayscales of a target frame image to obtain multiple transformed second grayscales; a fourth acquisition module, configured to obtain a second grayscale extreme value of the target frame image according to the multiple transformed second grayscales.

[0092] Further, the second acquisition module includes: a second adjustment module, configured to adjust a first power supply voltage according to the first grayscale extreme value and the second grayscale extreme value to obtain a second power supply voltage.

[0093] Further, the second adjustment module includes: a second gamma voltage determination module, configured to determine a first gamma voltage corresponding to the first grayscale extreme value according to the first grayscale extreme value, and determine a second gamma voltage corresponding to the second grayscale extreme value according to the second grayscale extreme value; a second gamma reference voltage determination module, configured to determine a gamma reference voltage according to the second gamma voltage; a third adjustment module, configured to adjust a preset first power supply voltage according to the gamma reference voltage and the first gamma voltage to obtain a second power supply voltage.

[0094] Further, the display further includes: a driving power adjustment module, configured to adjust the driving power of the display panel according to the second power supply voltage.

[0095] Further, the first grayscale extreme value is the maximum value of multiple first grayscales of the target frame image, and the second grayscale extreme value is the maximum value of multiple second grayscales of the target frame image.

[0096] Further, the target frame image of the display panel includes multiple pixel points, where at least one pixel point is preset with a grayscale corresponding to the pixel point.

[0097] Figure 5 The structural schematic diagram of the display according to the embodiment of the present application is shown.

[0098] As Figure 5 shown, the input image can be subjected to image caching. Among them, the image caching can be implemented by a register. The image caching can read the display data of a pre-stored target frame and perform caching. When the image caching receives an instruction sent by the system to start image processing, the image caching can send the cached display data of the target frame to the image analysis for analysis.

[0099] Further, the image analysis may receive the display data of the target frame sent by the image buffer and analyze the display data of the target frame. Since there is a non-linear relationship between the visual perception of an image and its brightness, and visual perception can be characterized by the lightness value observable by the human eye while brightness can be characterized by the brightness factor, statistical analysis can be performed on each pixel of the target frame image based on the non-linear relationship between the visual perception and brightness of the image to obtain the range of lightness values of the target frame image. Of course, statistical analysis can also be performed on the gray scale of the target frame image to obtain the range of gray scales.

[0100] Further, based on the non-linear relationship between the visual perception of an image and its brightness, the gray scale of the target frame image can be segmented, and a piecewise function can be used to transform the first gray scale to obtain the transformed second gray scale.

[0101] Further, the power supply voltage can be adjusted based on the result of the image analysis, and the adjusted power supply voltage can be sent into the voltage driver to control the final image output together with the data after image processing.

[0102] In summary, in the embodiment of the present application, the first gray scale extreme value of the target frame image is obtained based on the display data of the target frame image, then the first power supply voltage is adjusted according to the first gray scale extreme value to obtain the second power supply voltage, and finally the display is driven according to the second power supply voltage and the display data of the target frame image, which can dynamically and adaptively adjust the second power supply voltage, thereby further reducing the energy consumption of the display panel while ensuring the display effect of the display panel. In the above embodiments, the descriptions of the respective embodiments have their own emphases. For parts not detailed in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0103] The driving method and the display of the display provided in the embodiments of the present application have been introduced in detail above. Specific examples are used in this article to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the technical solution and its core idea of the present application; those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A driving method for a display, wherein, the driving method for the display includes: obtaining a first grayscale extreme value of a target frame image according to the display data of the target frame image; adjusting a first power supply voltage according to the first grayscale extreme value to obtain a second power supply voltage, where the first power supply voltage is used to drive the display to display; driving the display to display according to the second power supply voltage and the display data of the target frame image; wherein, the step of adjusting the first power supply voltage according to the first grayscale extreme value to obtain a second power supply voltage further includes: transforming a plurality of first grayscales of the target frame image to obtain a second grayscale extreme value of the target frame image; obtaining the minimum first power supply voltage by using the difference between the first grayscale extreme value and the second grayscale extreme value; assigning the minimum first power supply voltage as the second power supply voltage; wherein, transforming a plurality of first grayscales of the target frame image to obtain a second grayscale extreme value of the target frame image includes: transforming a plurality of first grayscales of the target frame image to obtain a plurality of transformed second grayscales; obtaining a second grayscale extreme value of the target frame image according to the plurality of transformed second grayscales; wherein, the first grayscale extreme value is the maximum value of a plurality of first grayscales of the target frame image, and the second grayscale extreme value is the maximum value of a plurality of second grayscales of the target frame image.

2. The driving method for a display according to claim 1, wherein, obtaining a first grayscale extreme value of a target frame image according to the display data of the target frame image includes: obtaining a first grayscale range of the target frame image according to the display data of the target frame image; obtaining a first grayscale extreme value of the target frame image according to the first grayscale range.

3. The driving method for a display according to claim 1, wherein, the driving method for the display further includes: adjusting the driving power of the display panel according to the second power supply voltage.

4. The driving method for a display according to claim 1, wherein, the target frame image of the display panel includes a plurality of pixel points, wherein at least one pixel point is preset with a grayscale corresponding to the pixel point.

5. A display, wherein, the display includes: a first acquisition module electrically connected to a second acquisition module, where the first acquisition module is used to obtain a first grayscale extreme value of a target frame image according to the display data of the target frame image; a second acquisition module electrically connected to the first acquisition module and a display module, where the second acquisition module is used to adjust a first power supply voltage according to the first grayscale extreme value to obtain a second power supply voltage, where the first power supply voltage is used to drive the display to display; a display module electrically connected to the second acquisition module, where the display module is used to drive the display to display according to the second power supply voltage and the display data of the target frame image; wherein, adjusting the first power supply voltage according to the first grayscale extreme value to obtain a second power supply voltage further includes: transforming a plurality of first grayscales of the target frame image to obtain a second grayscale extreme value of the target frame image; obtaining the minimum first power supply voltage by using the difference between the first grayscale extreme value and the second grayscale extreme value; Assign the smallest first power supply voltage as the second power supply voltage; Wherein, the display further includes a third acquisition module, and the third acquisition module includes: A second gray scale acquisition module, configured to transform multiple first gray scales of a target frame image to obtain multiple transformed second gray scales; A fourth acquisition module, configured to obtain a second gray scale extreme value of the target frame image according to the multiple transformed second gray scales; Wherein, the first gray scale extreme value is the maximum value of multiple first gray scales of the target frame image, and the second gray scale extreme value is the maximum value of multiple second gray scales of the target frame image.

6. The display according to claim 5, Wherein, The first acquisition module includes: A first gray scale range acquisition module, configured to obtain a first gray scale range of the target frame image according to the display data of the target frame image; A first gray scale extreme value acquisition module, configured to obtain a first gray scale extreme value of the target frame image according to the first gray scale range.

7. The display according to claim 5, Wherein, The display further includes: a driving power adjustment module, configured to adjust the driving power of the display panel according to the second power supply voltage.

8. The display according to claim 5, Wherein, The target frame image of the display panel includes multiple pixel points, and at least one pixel point is preset with a gray scale corresponding to the pixel point.

Images