CN112783460B - Display control method and device, electronic equipment and readable storage medium - Google Patents

Display control method and device, electronic equipment and readable storage medium Download PDF

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CN112783460B
CN112783460B CN202110104110.2A CN202110104110A CN112783460B CN 112783460 B CN112783460 B CN 112783460B CN 202110104110 A CN202110104110 A CN 202110104110A CN 112783460 B CN112783460 B CN 112783460B
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display
parameter
value
target
gray scale
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CN112783460A (en
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李明臣
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Vivo Mobile Communication Co Ltd
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
    • G06F3/1407—General aspects irrespective of display type, e.g. determination of decimal point position, display with fixed or driving decimal point, suppression of non-significant zeros
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/02—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the way in which colour is displayed
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/10—Intensity circuits
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0271—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0626—Adjustment of display parameters for control of overall brightness

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  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Human Computer Interaction (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Liquid Crystal Display Device Control (AREA)

Abstract

The application discloses a display control method, a display control device, electronic equipment and a readable storage medium, and belongs to the technical field of image display. Wherein the method comprises the following steps: acquiring parameter values of target display parameters of N display blocks of a display screen, wherein the target display parameters comprise gray scale values or brightness; wherein N is an integer greater than 1; determining a display parameter average value of the display screen according to the parameter values of the target display parameters of the N display blocks; determining a target display block from the N display blocks based on the display parameter average value and the parameter value of the target parameter of each display block; and increasing the gray scale value of the target display block and reducing the backlight brightness of the target display block. The embodiment of the application can independently increase the gray scale value of the partial block with lower gray scale value in the display picture and reduce the backlight brightness when the whole gray scale value of the display picture is higher, thereby achieving the purpose of further reducing the power consumption.

Description

Display control method and device, electronic equipment and readable storage medium
Technical Field
The application belongs to the technical field of image display, and particularly relates to a display control method, a display control device, electronic equipment and a readable storage medium.
Background
Currently, when an electronic device displays an image, a backlight current is reduced and a picture display effect is basically ensured through a content-corresponding backlight control technology (Content Adaptive Brightness Control, CABC), a brightness automatic control (Auto Control Limit, ACL) technology, a sun screen (Local Tone Mapping, LTM) technology and the like, so that an effect of reducing power consumption is achieved.
However, in the prior art, display control is performed by taking the whole screen picture as a unit, and when the gray scale level of the picture is higher, power consumption reduction control cannot be effectively performed on the display picture, so that the power consumption of the electronic equipment is higher.
Disclosure of Invention
The embodiment of the application aims to provide a display control method which can solve the problem of higher power consumption of electronic equipment caused by poor power consumption reduction control effect on screen display in the prior art.
In order to solve the technical problems, the application is realized as follows:
In a first aspect, an embodiment of the present application provides a display control method, where the method includes:
Acquiring parameter values of target display parameters of N display blocks of a display screen, wherein the target display parameters comprise gray scale values or brightness; wherein N is an integer greater than 1;
determining a display parameter average value of the display screen according to the parameter values of the target display parameters of the N display blocks;
Determining a target display block from the N display blocks based on the display parameter average value and the parameter value of the target parameter of each display block;
And increasing the gray scale value of the target display block and reducing the backlight brightness of the target display block.
In a second aspect, an embodiment of the present application provides a display control apparatus, where the apparatus includes:
The acquisition module is used for acquiring parameter values of target display parameters of N display blocks of the display screen, wherein the target display parameters comprise gray scale values or brightness; wherein N is an integer greater than 1;
The first determining module is used for determining the average value of the display parameters of the display screen according to the parameter values of the target display parameters of the N display blocks;
The second determining module is used for determining a target display block from the N display blocks based on the average value of the display parameters and the parameter value of the target display parameter of each display block;
The first control module is used for increasing the gray scale value of the target display block and reducing the backlight brightness of the target display block.
In a third aspect, an embodiment of the present application provides an electronic device, including a processor, a memory, and a program or instruction stored on the memory and executable on the processor, the program or instruction implementing the steps of the method according to the first aspect when executed by the processor.
In a fourth aspect, embodiments of the present application provide a readable storage medium having stored thereon a program or instructions which when executed by a processor perform the steps of the method according to the first aspect.
In a fifth aspect, an embodiment of the present application provides a chip, where the chip includes a processor and a communication interface, where the communication interface is coupled to the processor, and where the processor is configured to execute a program or instructions to implement a method according to the first aspect.
In the embodiment of the application, the parameter values of the target display parameters of N display blocks of the display screen are obtained, and the target display parameters comprise gray scale values or brightness; determining the average value of the display parameters of the display screen according to the parameter values of the target display parameters of each display block; determining a target display block from the N display blocks according to the display parameter average value and the preset display parameter values of the display blocks; and (3) increasing the gray level value of the target display block and reducing the backlight brightness of the target display block. In the display control process, the display screen is divided into N display blocks in advance, then the target display block needing to be displayed and adjusted is determined based on the parameter value of the target display parameter of each display block, and the gray scale value and the backlight brightness of the target display block are dynamically adjusted, so that the display effect such as the brightness and the contrast of a picture can be dynamically adjusted, the picture quality and the display effect are improved, and the gray scale value of a part of blocks with lower gray scale values in the display picture can be independently adjusted and the backlight brightness of the part of blocks with lower gray scale values in the display picture can be reduced when the whole gray scale value of the display picture is higher, so that the power consumption is further reduced.
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FIG. 1 is a flow chart of steps of a display control method according to an embodiment of the present application;
FIG. 2 is a diagram illustrating a relationship between gray scale values and brightness of a frame in image display control according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a display control device according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The terms first, second and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the application may be practiced otherwise than as specifically illustrated or described herein. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.
The display control method provided by the embodiment of the application is described in detail below through specific embodiments and application scenes thereof with reference to the accompanying drawings.
Referring to fig. 1, a flowchart of steps of a display control method according to an embodiment of the present application is shown, where the method may include steps 100 to S500.
In the embodiment of the application, the method is applied to electronic equipment, and the electronic equipment can be mobile electronic equipment such as a mobile phone, a tablet personal computer, a notebook computer, a palm computer, a vehicle-mounted electronic equipment, a wearable device, an ultra-mobile personal computer (UMPC), a netbook or a Personal Digital Assistant (PDA), or non-mobile electronic equipment such as a personal computer (personal computer, PC), a Television (TV), a teller machine or a self-service machine.
Step 100, obtaining parameter values of target display parameters of N display blocks of a display screen, wherein the target display parameters comprise gray scale values or brightness; wherein N is an integer greater than 1.
In the step 100, the screen image area is divided into N areas equally or unequally according to a preset dividing rule to form N display blocks, so as to facilitate the subsequent analysis and display adjustment of preset display parameters of each display area; the shape of each display area may be the same or different, for example, may be rectangular; the pixel points included in each display area may be the same or different. In practical application, the screen may be divided into N regions according to the screen display region in advance, where each region corresponds to one display region of the display screen.
In the step 100, after receiving the image data, the electronic device needs to determine the gray-scale value, the brightness of the frame, and other parameter values of each pixel point on the display screen based on the image data, so that after determining the display screen range of each display block, the electronic device may acquire the parameter values of the target display parameters corresponding to each of the N display blocks, so as to facilitate the subsequent analysis to determine whether to perform display adjustment on the display block; the target display parameter value includes a gray scale value and a brightness. The corresponding relation between the gray scale value and the brightness is set, namely, the corresponding brightness can be uniquely determined for any gray scale value in the target display parameter. The gray-scale value in the parameter values of the target display parameters of each display block is an average value of the gray-scale values of the pixel points included in each display block.
Step 200, determining a display parameter average value of the display screen according to the parameter values of the target display parameters of the N display blocks.
In the step 200, after obtaining the parameter values of the target display parameters of each of the N display blocks, the preset display parameter values of each display block may be summed up according to the calculation method of the arithmetic average value, and then divided by the total number N of display blocks, to calculate the average value of the target display parameter values of the N display blocks, that is, the average value of the display parameters of the display screen.
For example, when the target display parameter is a gray scale value, if the total number of display blocks is n and the gray scale value of the nth display block is Gn, the average value lan= (g1+g2+ … Gn)/n of the display parameters is displayed.
Specifically, assuming that the total number of display blocks is 9 and the gray scale values of the 1 st to 9 th display blocks are 150, 160, 170, 180, 190, 200, 210, 220, 230, respectively, the average value lan= (150+160+170+180+190+200+210+220+230)/(9=190) is displayed.
For example, when the preset display parameter is brightness, if the total number of display blocks is n and the brightness value of the nth display block is Ln, the average value of the display parameters l_avg= (l1+l2+ … Ln)/n is displayed.
Specifically, assuming that the total number of display blocks is 12 and the luminance values of the 1 st to 12 th display blocks are 150, 160, 170, 180, 190, 200, 210, 215, 220, 225, 230, respectively, the average value l_avg= (150+160+170+180+190+200+210+215+220+224+230)/(12=197) is displayed.
And 300, determining a target display block from the N display blocks based on the average value of the display parameters and the parameter value of the display parameters of each display block.
In the above step 300, the target display area is a display area with high contrast, that is, a display area that can be adjusted by increasing the gray-scale value and decreasing the backlight brightness. In the target display parameter, the display block with a larger default gray-scale value corresponds to a larger screen brightness, so that the display block with a lower gray-scale value and a higher backlight brightness in each display block, that is, the display block with a higher screen contrast, can be determined by the average value of the display parameter and the parameter value of the target display parameter of each display block determined in step 200, and the display block can be used as the target display block.
Step 400, the gray scale value of the target display block is increased, and the backlight brightness of the target display block is reduced.
In the above step 400, since the contrast of the target display area is high, the power consumption of the target display area can be reduced by adjusting the gray-scale value and reducing the backlight brightness on the premise of ensuring that the contrast of the target display area satisfies the basic display effect.
The display control method provided by the embodiment of the application divides the display screen into N display blocks in advance; then, acquiring a parameter value of a target display parameter of each display block, wherein the target display parameter comprises a gray scale value or brightness; determining the average value of the display parameters of the display screen according to the parameter values of the target display parameters of each display block; determining a target display block from the N display blocks according to the average value of the display parameters and the parameter values of the display parameters of the display blocks; and (3) increasing the gray level value of the target display block and reducing the backlight brightness of the target display block. In the display control process, the display screen is firstly partitioned, each display block after the partitioning can be independently subjected to display parameter adjustment, then a target display block needing to be subjected to display adjustment is determined based on the parameter value of the display parameter of each display block, and the target display block is independently subjected to display adjustment flexibly, so that the display effects such as brightness and contrast of a picture can be dynamically adjusted, the picture quality and the display effect are improved, and the gray scale value of a part of blocks with lower gray scale values in the display picture can be independently adjusted and the backlight brightness of the part of blocks with lower gray scale values in the display picture can be reduced when the whole gray scale value of the display picture is higher, so that the purpose of further reducing the power consumption is achieved.
Optionally, in an implementation manner, the step 300 includes steps 301 to 303 in the display control method provided in the embodiment of the present invention.
Step 301, determining M first display blocks in the N display blocks, where a parameter value of a target display parameter of the first display block is greater than or equal to the preset display parameter average value; m is a positive integer, and M is less than or equal to N.
In step 301, comparing the parameter value of the target display parameter of each display block with the average value of the display parameters of N display blocks in the display screen, and using the display block with the parameter value of the target display parameter greater than or equal to the average value of the display parameters as the first display block until the parameter values of the target display parameters of all N display blocks are compared with the average value of the display parameters, so as to determine M first display blocks in total.
Step 302, determining a display parameter threshold according to the parameter values of the target display parameters of the M first display blocks.
In the step 302, the display parameter threshold is a threshold for defining whether the display area is a display adjustable threshold; the first display blocks are display blocks with the parameter values of the target display parameters being larger than or equal to the average value of the display parameters, so that a display parameter threshold value is determined according to the parameter values of the target display parameters of each first display block, and display blocks with higher parameter values of the target display parameters can be screened out from each display block by utilizing the display parameter threshold value.
And 303, determining a target display block from the N display blocks according to the parameter values of the target display parameters of the display blocks and the display parameter threshold.
In the step 303, the parameter value of the target display parameter of each of the N display blocks and the display parameter threshold determined in the step S302 are calculated and compared according to a preset comparison rule, so that the display block capable of performing the picture display control, that is, the target display block, can be selected from the N display blocks.
In the above embodiment, the M first display blocks having the parameter values of the target display parameters greater than or equal to the average value of the display parameters of the display screen are used to determine the display parameter threshold used to define whether the display blocks need to be displayed and regulated, and because the parameter values of the target display parameters of the first display blocks are greater, the target display blocks having the higher parameter values of the target display parameters can be accurately screened from the display blocks through the display parameter threshold.
Optionally, in an implementation manner, the step 302 includes steps 3021 to 3023 in the display control method provided in the embodiment of the present invention.
Step 3021, determining a gray-scale weight value corresponding to each display block according to the parameter values of the target display parameters of the N display blocks and a preset correspondence between the parameter values of the target display parameters and the gray-scale weight values.
In step 3021, the gray-scale weight value is used to describe the importance of the current gray-scale value of the display block with respect to the display effect, that is, to reflect the adjustable gray-scale value of the display block; the higher the gray scale weight value, the smaller the adjustable amplitude of the corresponding display block. Because the preset corresponding relation prescribes the corresponding relation between the parameter value of the target display parameter and the gray scale weight value, the gray scale weight value corresponding to each display block can be rapidly determined according to the parameter value of the target display parameter of each display block and the preset corresponding relation.
In practical application, gray scale weight definition is performed on a gray scale interval of 0-255 in a gamma curve based on a mapping relation between coordinated natural brightness and subjective gray scale feeling in advance, so that the preset corresponding relation is determined. In the preset corresponding relation, the larger the parameter value of the target display parameter is, the larger the gray scale weight value is. Specifically, referring to fig. 2, a schematic diagram showing a correspondence between a gray level value and a brightness of a frame in image display control is shown, and in order to ensure a display effect, a curve formed by the gray level value and the brightness of the frame needs to be controlled between a gamma2.2 curve and a gamma2.5 curve, so that the brightness of the frame is gradually increased and the increasing amplitude of the brightness of the frame is continuously increased along with the increasing of the gray level value, as shown in fig. 2; therefore, as the gray level of the image is increased, the larger the influence of changing the gray level of the image on the subjective gray level feeling of human eyes by the same increment is, in order to save energy consumption by increasing the gray level of the image and reducing the backlight brightness on the premise of ensuring that the display effect is not changed obviously, the higher the gray level is, the larger the gray level weight value of the corresponding display block is.
For example, when the average value Lan of the display parameters is 219, the preset correspondence between the gray-scale values 219 to 255 may be shown in table 1, where γ N is a gray-scale weight value and N is a gray-scale value.
TABLE 1
γ255＝1 γ249＝0.94 γ243＝0.88 γ237＝0.82 γ230＝0.76 γ224＝0.70
γ254＝0.99 γ248＝0.93 γ242＝0.87 γ236＝0.81 γ229＝0.75 γ223＝0.69
γ253＝0.98 γ247＝0.92 γ241＝0.86 γ235＝0.80 γ228＝0.74 γ222＝0.68
γ252＝0.97 γ246＝0.91 γ240＝0.85 γ234＝0.79 γ227＝0.73 γ221＝0.67
γ251＝0.96 γ245＝0.90 γ239＝0.84 γ232＝0.78 γ226＝0.72 γ220＝0.66
γ250＝0.95 γ244＝0.89 γ238＝0.83 γ231＝0.77 γ225＝0.71 γ219＝0.65
Step 3022, calculating an average gray scale weight of the N display blocks according to the gray scale weights of the M first display blocks.
In the step 3022, an average gray-scale weight value of each first display block, where the parameter value of the target display parameter is greater than or equal to the average value of the display parameters, is calculated, specifically, the gray-scale weight values of each first display block are summed and divided by the total number N of display blocks, to obtain the average gray-scale weight value.
Step 3023, determining the display parameter threshold based on the average gray scale weight value.
The step 3023 is to determine the display parameter threshold based on the average gray scale weight value determined in the step 3022. For example, the average gray-scale weight value may be directly used as the display parameter threshold, or the average gray-scale weight value may be multiplied by a weight coefficient as needed, so as to obtain the display parameter threshold.
In the above embodiment, according to the target display parameters such as the brightness or the gray scale value of the current display of each display block, a gray scale weight factor is introduced, and the gray scale weight value of the target display parameter is greater than or equal to the gray scale weight value of the M first display blocks of the average display parameter, so as to determine the display parameter threshold used for defining whether the display block needs to be displayed and regulated, and the target display block with a higher preset display parameter value can be accurately selected from the display blocks through the display parameter threshold, so that the display effects such as the gray scale value, brightness, contrast and the like of the target display block can be dynamically adjusted according to the gray scale weight value, the picture quality and the display effect are improved, and the power consumption is further reduced.
Optionally, in a specific embodiment, the preset correspondence includes: a first sub-correspondence between the parameter value of the target display parameter and the initial gray scale weight value, and a second sub-correspondence between the parameter value of the target display parameter and the ambient light factor; step 3021 includes steps 3211 to 3213.
Step 3211, determining an initial gray scale weight value corresponding to each display block according to the parameter value of the target display parameter and the first sub-correspondence.
In step 3211, the initial gray-scale weight value is used to describe the importance of the current gray-scale value of the display block with respect to the display effect, i.e. the parameter value used to reflect the target display parameter of the display block can be adjusted; the higher the initial gray scale weight value, the smaller the adjustable amplitude of the corresponding display block. Because the first sub-corresponding relation prescribes the corresponding relation between the parameter value of the target display parameter and the initial gray-scale weight value, the initial gray-scale weight value corresponding to each display block can be rapidly determined according to the parameter value of the target display parameter of each display block and the first sub-corresponding relation.
For example, when the average value l_avg of the display parameter is 219, the preset correspondence between the gray-scale values 219 to 255 may be shown in table 2, where γ N is a gray-scale weight value and N is a gray-scale value.
TABLE 2
γ255＝1 γ249＝0.94 γ243＝0.88 γ237＝0.82 γ230＝0.76 γ224＝0.70
γ254＝0.99 γ248＝0.93 γ242＝0.87 γ236＝0.81 γ229＝0.75 γ223＝0.69
γ253＝0.98 γ247＝0.92 γ241＝0.86 γ235＝0.80 γ228＝0.74 γ222＝0.68
γ252＝0.97 γ246＝0.91 γ240＝0.85 γ234＝0.79 γ227＝0.73 γ221＝0.67
γ251＝0.96 γ245＝0.90 γ239＝0.84 γ232＝0.78 γ226＝0.72 γ220＝0.66
γ250＝0.95 γ244＝0.89 γ238＝0.83 γ231＝0.77 γ225＝0.71 γ219＝0.65
Step 3212, determining an ambient light factor corresponding to each display tile according to the parameter value of the target display parameter and the second sub-correspondence.
In the step 3212, the ambient light factor is used to describe the influence degree of adjusting the preset display parameter on the display effect of the picture under the current ambient light intensity, that is, the influence degree of different ambient light intensities on the current gray scale weight value of the display block is expressed; because the second sub-correspondence specifies the correspondence between the parameter value of the target display parameter and the ambient light factor, the ambient light factor corresponding to each display block can be rapidly determined according to the parameter value of the target display parameter of each display block and the second sub-correspondence.
In the above step 3212, since the setting of the target display parameter is related to not only the screen content but also the ambient light intensity, specifically, the parameter value of the setting target display parameter is positively related to the ambient light intensity; and as the subjective gray scale feeling of human eyes is less sensitive along with the increase of the illumination intensity of the environment, the adjustable amplitude of the target display parameter of the display block is smaller along with the increase of the parameter value of the target display parameter, and accordingly, the importance degree of the current gray scale value of the display block relative to the display effect is higher, therefore, the third corresponding relation between the parameter value of the target display parameter and the environment light factor needs to be set, and the third corresponding relation can be determined through experiments in advance.
For example, when the preset display parameter average value l_avg is 219, the third correspondence between the gray-scale values 219 to 255 may be shown in table 3, where W N is a gray-scale weight value and N is a gray-scale value.
TABLE 3 Table 3
W_255＝1 W_249＝0.94 W_243＝0.88 W_237＝0.82 W_230＝0.76 W_224＝0.70
W_254＝0.99 W_248＝0.93 W_242＝0.87 W_236＝0.81 W_229＝0.75 W_223＝0.69
W_253＝0.98 W_247＝0.92 W_241＝0.86 W_235＝0.80 W_228＝0.74 W_222＝0.68
W_252＝0.97 W_246＝0.91 W_240＝0.85 W_234＝0.79 W_227＝0.73 W_221＝0.67
W_251＝0.96 W_245＝0.90 W_239＝0.84 W_232＝0.78 W_226＝0.72 W_220＝0.66
W_250＝0.95 W_244＝0.89 W_238＝0.83 W_231＝0.77 W_225＝0.71 W_219＝0.65
Step 3213, for each display area, determining a gray-scale weight value corresponding to the display area based on the initial gray-scale weight value of the display area and the ambient light factor.
In step 3213, considering that the brightness of the black field and the dark tone color area gradually increases as the ambient light intensity increases, the color gamut compression of the screen area is caused, but the white field brightness increases less, the tone curve of each color also shows a level compression at the middle and low brightness, and the compression degree of the color gamut and the tone level at the dark tone is related to the ambient light intensity, the black field brightness of the screen itself and the reflection degree of the screen surface to the ambient light. Therefore, gray scale weight definition is required to be carried out on a gray scale interval of 0-255 by integrating a natural brightness perception curve of human eyes, the brightness of a black field of a screen and the reflection degree of the surface of the screen on ambient light; thus, for each display block, the gray scale weight value of each display block is calculated by multiplying the initial gray scale weight value by the ambient light factor.
In the above embodiment, the gray scale weight factor is added to the platform end according to the brightness or gray scale value of the current display screen and the ambient light factor, and the display effects such as the brightness and the contrast of the screen are dynamically adjusted based on the gray scale weight value, because the influence of the parameter value of the target display parameter and the ambient illumination intensity on the gray scale value adjustment and the brightness adjustment of each display area is considered, the quality and the display effect of the screen can be improved, and the gray scale value of the partial area with the lower gray scale value in the display screen can be independently adjusted to be reduced when the overall gray scale value of the display screen is higher, so that the effect of further reducing the power consumption is achieved.
Optionally, in an implementation manner, the step 303 includes a step 3031 in the display control method provided in the embodiment of the present invention.
Step 3031, determining a display block with a gray scale weight value smaller than the average gray scale weight value in the N display blocks as the target display block.
In the above embodiment, the smaller the gray-scale weight value is, the smaller the influence of the gray-scale value of the corresponding display block on the display effect is, and the average gray-scale weight value is calculated from the gray-scale weight values of the first display blocks whose target display parameter values are greater than or equal to the average value of the display parameter, that is, the average gray-scale weight value reflects the gray-scale weight level of the display block whose gray-scale value is higher, so that the display block whose gray-scale weight value is smaller than the average gray-scale weight value can be determined as the target display block, and the display block with lower gray-scale value, higher contrast and better display effect is selected from the display blocks, so that the overall power consumption of the display screen is reduced on the premise of ensuring the basic display effect.
Optionally, in an implementation manner, the step 400 includes the steps of:
Respectively adjusting the gray scale value of each target display block according to the gray scale weight value of each target display block, and reducing the backlight brightness of each target display block;
wherein, the different gray scale weight values, the gray scale value and the adjustment amplitude of the backlight brightness are different.
In the above steps, because the gray scale weight value describes the importance of the current gray scale value of the display block relative to the display effect, the adjustable amplitude of the gray scale value of the display block is also reflected; therefore, the gray scale value of each target display block can be correspondingly increased according to the gray scale weight value of each target display block, so that the brightness of the picture can be kept unchanged on the premise that the contrast ensures the basic display effect.
In the above steps, the gray scale weight value also reflects the current brightness adjustable amplitude of the display block; therefore, the backlight brightness of each target display block can be correspondingly reduced according to the gray scale weight value of each target display block.
In the above embodiment, because the gray-scale weight value describes the importance of the current gray-scale value of the display block relative to the display effect, and reflects the current brightness of the display block that can be adjusted, according to the gray-scale weight value of each target display block, the gray-scale value of each target display block is correspondingly increased, and the backlight brightness of each target display block is reduced, so that the screen brightness is kept unchanged on the premise that the contrast ensures the basic display effect, and the overall power consumption of the display screen is reduced.
Optionally, in an implementation manner, the display control method provided by the embodiment of the present invention further includes step 500 after the step 400.
And 500, controlling the gray scale value of each second display block to be unchanged, and adjusting the backlight brightness of each second display block to be a preset maximum brightness, wherein the second display block is a display block except the target display block in the plurality of display blocks.
In the above step 500, since the target display area is a display area with a smaller gray scale value, the second display areas except for the target display area in the plurality of display areas are display areas with a larger gray scale value, and the corresponding contrast ratio is smaller at this time, in order to ensure the basic display effect, the gray scale value of each second display area can be controlled to be unchanged, and the backlight brightness of each second display area is adjusted to be the preset maximum brightness, so that the user can view the display content of each second display area more clearly as much as possible.
It should be noted that, in the display control method provided in the embodiment of the present application, the execution body may be a terminal device, or a control module in the terminal device for executing the loading display control method. In the embodiment of the application, the method for controlling the loading display executed by the terminal equipment is taken as an example, and the display control method provided by the embodiment of the application is described.
Referring to fig. 3, a schematic structural diagram of a display control device provided by an embodiment of the present application is shown, and as shown in fig. 3, a display control device 30 provided by an embodiment of the present application is applied to an electronic apparatus, where the device includes:
an obtaining module 31, configured to obtain parameter values of target display parameters of N display blocks of the display screen, where the target display parameters include a gray-scale value or brightness; the N is an integer greater than 1
A first determining module 32, configured to determine an average value of display parameters of the display screen according to parameter values of target display parameters of the N display blocks;
A second determining module 33, configured to determine a target display block from the N display blocks based on the average value of the display parameters and the parameter value of the target display parameter of each of the display blocks;
the first control module 34 is configured to increase the gray-scale value of the target display block and decrease the backlight brightness of the target display block.
Optionally, in the display control apparatus 30, the second determining module 33 includes:
A first determining submodule, configured to determine M first display blocks of the N display blocks, where a parameter value of a target display parameter of the first display block is greater than or equal to the average value of the display parameters; wherein M is a positive integer, M is less than or equal to N;
The second determining submodule is used for determining a display parameter threshold according to the parameter values of the target display parameters of the M first display blocks;
And the third determining submodule is used for determining a target display block from the N display blocks according to the parameter values of the target display parameters of the display blocks and the display parameter threshold values.
Optionally, in the display control apparatus 30, the second determining submodule includes:
The first determining unit is used for determining a gray scale weight value corresponding to each display block according to the parameter values of the target display parameters of the N display blocks and a preset corresponding relation between the parameter values of the target display parameters and the gray scale weight values;
the calculating unit is used for calculating the average gray scale weight value of the N display blocks according to the gray scale weight values of the M first display blocks;
And the second determining unit is used for determining the display parameter threshold value based on the average gray scale weight value.
Optionally, in the display control device 30, the third determining submodule is specifically configured to determine a display block with a gray-scale weight value smaller than the average gray-scale weight value in the N display blocks as the target display block.
Optionally, in the display control device 30, the first control module 34 is specifically configured to adjust a gray-scale value of each target display block according to a gray-scale weight value of each target display block, and reduce backlight brightness of each target display block;
wherein, the different gray scale weight values, the gray scale value and the adjustment amplitude of the backlight brightness are different.
Optionally, in the display control apparatus 30, the preset correspondence relationship includes: a first sub-correspondence between the parameter value of the target display parameter and the initial gray scale weight value, and a second sub-correspondence between the parameter value of the target display parameter and the ambient light factor;
The first determination unit includes:
the first determining subunit is configured to determine an initial gray-scale weight value corresponding to each display block according to the parameter value of the target display parameter and the first sub-correspondence;
the second determining subunit is configured to determine an ambient light factor corresponding to each display block according to the parameter value of the target display parameter and the second sub-correspondence;
And a third determining subunit, configured to determine, for each display block, a gray-scale weight value corresponding to the display block based on the initial gray-scale weight value of the display block and the ambient light factor.
Optionally, the apparatus further comprises:
and the second control module is used for controlling the gray scale value of each second display block to be unchanged and adjusting the backlight brightness of each second display block to be a preset maximum brightness after determining a target display block from the N display blocks based on the display parameter average value and the parameter value of the display parameter of each display block, wherein the second display block is a display block except the target display block in the display blocks.
The display control device 30 in the embodiment of the present application may be a device, or may be a component, an integrated circuit, or a chip in a terminal. The device may be a mobile electronic device or a non-mobile electronic device. By way of example, the mobile electronic device may be a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted electronic device, a wearable device, an ultra-mobile personal computer (UMPC), a netbook or a Personal Digital Assistant (PDA), etc., and the non-mobile electronic device may be a server, a network attached storage (Network Attached Storage, NAS), a personal computer (personal computer, PC), a Television (TV), a teller machine, a self-service machine, etc., and the embodiments of the present application are not limited in particular.
The display control device 30 in the embodiment of the present application may be a device having an operating system. The operating system may be an Android operating system, an ios operating system, or other possible operating systems, and the embodiment of the present application is not limited specifically.
The display control device 30 provided in the embodiment of the present application can implement each process implemented by the display control device in the method embodiment of fig. 1 to 2, and in order to avoid repetition, a detailed description is omitted here.
In the embodiment of the application, the display screen is divided into N display blocks in advance, then the target display block needing to be displayed and adjusted is determined based on the parameter value of the target display parameter of each display block, and the gray scale value and the backlight brightness of the target display block are dynamically adjusted, so that the display effect of dynamically adjusting the brightness, the contrast ratio and the like of a picture can be realized, the picture quality and the display effect can be improved, and the gray scale value of a part of blocks with lower gray scale values in the display picture can be independently adjusted and the backlight brightness of the part of blocks with lower gray scale values in the display picture can be reduced when the whole gray scale value of the display picture is higher, thereby further reducing the power consumption.
Optionally, the embodiment of the present application further provides an electronic device, including a processor, a memory, and a program or an instruction stored in the memory and capable of running on the processor, where the program or the instruction when executed by the processor implements each process of the embodiment of the display control method, and the process can achieve the same technical effect, so that repetition is avoided, and details are not repeated here.
It should be noted that, the electronic device in the embodiment of the present application includes the mobile electronic device and the non-mobile electronic device described above.
Fig. 4 is a schematic hardware structure of an electronic device implementing an embodiment of the present application.
The electronic device 400 includes, but is not limited to: a radio frequency unit 4001, a network module 4002, an audio output unit 4003, an input unit 4004, a sensor 4005, a display unit 4006, a user input unit 4007, an interface unit 4008, a memory 4009, a processor 4010, and the like.
Those skilled in the art will appreciate that the electronic device 40 may further include a power source (e.g., a battery) for powering the various components, and the power source may be logically coupled to the processor 4010 via a power management system for performing functions such as managing charging, discharging, and power consumption via the power management system. The electronic device structure shown in fig. 4 does not constitute a limitation of the electronic device, and the electronic device may include more or less components than shown, or may combine certain components, or may be arranged in different components, which are not described in detail herein.
Wherein the user input unit 4007, in an embodiment of the present application, includes an image display interface;
a processor 4010, configured to obtain parameter values of target display parameters of N display blocks of the display screen, where the target display parameters include gray-scale values or brightness; wherein N is an integer greater than 1; determining a display parameter average value of the display screen according to the parameter values of the target display parameters of the N display blocks; determining a target display block from the N display blocks based on the display parameter average value and the parameter value of the target parameter of each display block; and increasing the gray scale value of the target display block and reducing the backlight brightness of the target display block.
According to the electronic equipment provided by the embodiment of the application, the target display blocks needing to be displayed and adjusted are determined based on the parameter values of the target display parameters of the N display blocks of the display screen, and the gray scale values and the backlight brightness of the target display blocks are dynamically adjusted, so that the display effects such as the brightness and the contrast of a picture can be dynamically adjusted, the picture quality and the display effect are improved, and the gray scale values of partial blocks with lower gray scale values in the display picture can be independently adjusted and the backlight brightness of the partial blocks with lower gray scale values in the display picture can be reduced when the whole gray scale value of the display picture is higher, so that the power consumption is further reduced.
Optionally, the processor 4010 is specifically configured to determine M first display tiles of the N display tiles, where a parameter value of a target display parameter of the first display tile is greater than or equal to the average value of the display parameters; m is a positive integer, M is less than or equal to N; determining a display parameter threshold according to the parameter values of the target display parameters of the M first display blocks; and determining a target display block from the N display blocks according to the parameter values of the target display parameters of the display blocks and the display parameter threshold values.
Optionally, the processor 4010 is specifically configured to determine a gray-scale weight value corresponding to each display block according to a parameter value of the target display parameters of the N display blocks and a preset correspondence between the parameter value of the target display parameters and the gray-scale weight value; calculating average gray scale weight values of the N display blocks according to the gray scale weight values of the M first display blocks; and determining the display parameter threshold based on the average gray scale weight value.
Optionally, the processor 4010 is specifically configured to determine a display block with a gray scale weight value smaller than the average gray scale weight value in the N display blocks as the target display block.
Optionally, the processor 4010 is specifically configured to raise a gray scale value of each of the target display blocks and reduce backlight brightness of each of the target display blocks according to a gray scale weight value of each of the target display blocks; wherein, the different gray scale weight values, the gray scale value and the adjustment amplitude of the backlight brightness are different.
Optionally, the preset correspondence relationship includes: a first sub-correspondence between the parameter value of the target display parameter and the initial gray scale weight value, and a second sub-correspondence between the parameter value of the target display parameter and the ambient light factor; the processor 4010 is specifically configured to determine an initial gray-scale weight value corresponding to each display block according to the parameter value of the target display parameter and the first sub-correspondence; determining an ambient light factor corresponding to each display block according to the parameter value of the target display parameter and the second sub-corresponding relation; for each display block, determining a gray scale weight value corresponding to the display block based on the initial gray scale weight value and the ambient light factor of the display block.
Optionally, the processor 4010 is further configured to control a gray scale value of each second display block to remain unchanged and adjust backlight brightness of each second display block to a preset maximum brightness after determining a target display block from the display blocks according to the preset display parameter average value and the preset display parameter value of each display block, wherein the second display block is a display block except the target display block from the plurality of display blocks.
The embodiment of the application also provides a readable storage medium, on which a program or an instruction is stored, which when executed by a processor, implements each process of the above embodiment of the display control method, and can achieve the same technical effects, and in order to avoid repetition, the description is omitted here.
Wherein the processor is a processor in the electronic device described in the above embodiment. The readable storage medium includes a computer readable storage medium such as a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.
The embodiment of the application further provides a chip, which comprises a processor and a communication interface, wherein the communication interface is coupled with the processor, and the processor is used for running programs or instructions to realize the processes of the embodiment of the display control method, and can achieve the same technical effects, so that repetition is avoided, and the description is omitted here.
It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, chip systems, or system-on-chip chips, etc.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method according to the embodiments of the present application.
The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are to be protected by the present application.

Claims (8)

1. A display control method, characterized in that the method comprises:
Acquiring parameter values of target display parameters of N display blocks of a display screen, wherein the target display parameters comprise gray scale values or brightness; wherein N is an integer greater than 1;
determining a display parameter average value of the display screen according to the parameter values of the target display parameters of the N display blocks; determining a target display block from the N display blocks based on the display parameter average value and the parameter value of the target parameter of each display block;
the gray scale value of the target display block is increased, and the backlight brightness of the target display block is reduced;
Wherein the determining a target display block from the N display blocks based on the average value of the display parameters and the parameter value of the target parameter of each of the display blocks includes:
Determining M first display blocks in the N display blocks, wherein the parameter value of the target display parameter of the first display block is larger than or equal to the average value of the display parameters; m is a positive integer, M is less than or equal to N;
Determining a display parameter threshold according to the parameter values of the target display parameters of the M first display blocks;
Determining a target display block from the N display blocks according to the parameter values of the target display parameters of the display blocks and the display parameter threshold values;
the step of determining a display parameter threshold according to the parameter values of the target display parameters of the M first display blocks includes:
Determining a gray scale weight value corresponding to each display block according to the parameter values of the target display parameters of the N display blocks and a preset corresponding relation between the parameter values of the target display parameters and the gray scale weight values;
calculating average gray scale weight values of the N display blocks according to the gray scale weight values of the M first display blocks;
And determining the display parameter threshold based on the average gray scale weight value.
2. The display control method according to claim 1, wherein the target display block determined from the N display blocks according to the parameter value of the target display parameter of each of the display blocks and the display parameter threshold value, comprises:
And determining a display block with a gray scale weight value smaller than the average gray scale weight value in the N display blocks as the target display block.
3. The display control method according to claim 1, wherein the step of increasing the gray-scale value of the target display block and decreasing the backlight brightness of the target display block comprises:
Respectively adjusting the gray scale value of each target display block according to the gray scale weight value of each target display block, and reducing the backlight brightness of each target display block;
wherein, the different gray scale weight values, the gray scale value and the adjustment amplitude of the backlight brightness are different.
4. The display control method according to claim 1, wherein the preset correspondence relationship includes: a first sub-correspondence between the parameter value of the target display parameter and the initial gray scale weight value, and a second sub-correspondence between the parameter value of the target display parameter and the ambient light factor;
the step of determining the gray scale weight value corresponding to each display block according to the parameter values of the target display parameters of the N display blocks and the preset corresponding relation between the parameter values of the target display parameters and the gray scale weight values comprises the following steps:
Determining an initial gray scale weight value corresponding to each display block according to the parameter value of the target display parameter and the first sub-corresponding relation;
Determining an ambient light factor corresponding to each display block according to the parameter value of the target display parameter and the second sub-corresponding relation;
For each display block, determining a gray scale weight value corresponding to the display block based on the initial gray scale weight value and the ambient light factor of the display block.
5. The display control method according to claim 1, wherein after the step of determining a target display tile from the N display tiles based on the display parameter average value and the parameter value of the target display parameter for each of the display tiles, the method further comprises:
and controlling the gray scale value of each second display block to be unchanged, and adjusting the backlight brightness of each second display block to be a preset maximum brightness, wherein the second display block is a display block except the target display block in the plurality of display blocks.
6. A display control apparatus, characterized in that the apparatus comprises:
The acquisition module is used for acquiring parameter values of target display parameters of N display blocks of the display screen, wherein the target display parameters comprise gray scale values or brightness; wherein N is an integer greater than 1;
The first determining module is used for determining the average value of the display parameters of the display screen according to the parameter values of the target display parameters of the N display blocks;
The second determining module is used for determining a target display block from the N display blocks based on the average value of the display parameters and the parameter value of the target display parameter of each display block;
The first control module is used for increasing the gray scale value of the target display block and reducing the backlight brightness of the target display block;
the second determining module includes:
A first determining submodule, configured to determine M first display blocks of the N display blocks, where a parameter value of a target display parameter of the first display block is greater than or equal to the average value of the display parameters; wherein M is a positive integer, M is less than or equal to N;
The second determining submodule is used for determining a display parameter threshold according to the parameter values of the target display parameters of the M first display blocks;
The third determining submodule is used for determining a target display block from the N display blocks according to the parameter values of the target display parameters of the display blocks and the display parameter threshold;
the second determination submodule includes:
the first determining unit is used for determining a gray scale weight value corresponding to each display block according to the parameter values of the target display parameters of the N display blocks and a preset corresponding relation between the parameter values of the target display parameters and the gray scale weight values;
the calculating unit is used for calculating the average gray scale weight value of the N display blocks according to the gray scale weight values of the M first display blocks;
And the second determining unit is used for determining the display parameter threshold value based on the average gray scale weight value.
7. An electronic device comprising a processor, a memory and a program or instruction stored on the memory and executable on the processor, which when executed by the processor, implements the steps of the display control method of any one of claims 1-5.
8. A readable storage medium, wherein a program or instructions is stored on the readable storage medium, which when executed by a processor, implements the steps of the display control method according to any one of claims 1-5.
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