CN112783460A - 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 PDFInfo
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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
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- 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
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- 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
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- 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
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- 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
Abstract
The application discloses a display control method and 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 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; 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 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 embodiment of the application, when the overall gray scale value of the display picture is higher, the gray scale value of the partial block with the lower gray scale value in the display picture is independently increased, and the backlight brightness is reduced, so that the purpose of further reducing the power consumption is achieved.
Description
Technical Field
The application belongs to the technical field of image display, and particularly relates to a display control method and device, electronic equipment and a readable storage medium.
Background
Currently, when an electronic device displays an image, a backlight Control technology (cab), an automatic Brightness Limit (ACL) technology, a Local Tone Mapping (LTM) technology, and the like are used to reduce a backlight current and substantially ensure a picture display effect, so as to achieve an effect of reducing power consumption.
However, in the prior art, the display control is performed by taking the whole screen picture as a unit, and when the display gray scale level of the picture is higher, the power consumption of the display picture cannot be effectively reduced, 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 that in the prior art, the power consumption reduction control effect of screen display is poor, so that the power consumption of electronic equipment is high.
In order to solve the technical problem, the present application is implemented 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 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;
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 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 device comprises an acquisition module, a display module and a display module, wherein the acquisition module is used for acquiring parameter values of target display parameters of N display blocks of a display screen, and 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;
a second determining module, configured to determine a target display block from the N display blocks based on the average value of the display parameters and a parameter value of a 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, which includes a processor, a memory, and a program or instructions stored on the memory and executable on the processor, and when executed by the processor, the program or instructions implement the steps of the method according to the first aspect.
In a fourth aspect, embodiments of the present application provide a readable storage medium, on which a program or instructions are stored, which when executed by a processor implement 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 the processor is configured to execute a program or instructions to implement the method according to the first aspect.
In the embodiment of the application, the parameter values of target display parameters of N display blocks of a display screen are obtained, wherein 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 average value of the display parameters and the preset display parameter value of each display block; the gray scale value of the target display area is increased, and the backlight brightness of the target display area is reduced. In the display control process, the display screen is divided into N display blocks in advance, then the target display block which needs 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 effects of dynamically adjusting the image brightness, the contrast and the like can be realized, the image quality and the display effect can be improved, and the gray scale value of the part of the block with the lower gray scale value in the display image can be independently increased and the backlight brightness can be reduced when the integral gray scale value of the display image is higher, so that the power consumption is further reduced.
Drawings
Fig. 1 is a flowchart illustrating steps of a display control method according to an embodiment of the present disclosure;
FIG. 2 is a diagram illustrating a relationship between a gray scale value and a frame brightness in an image display control according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of a display control apparatus according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of an electronic device provided in an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terms first, second and the like in the description and in the claims of the present application 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 is interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or described herein. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.
The display control method provided by the embodiment of the present application is described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios thereof.
Referring to fig. 1, a flowchart illustrating 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 present application, the method is applied to an electronic device, where the electronic device may be a mobile electronic device such as 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), or may also be a non-mobile electronic device such as a Personal Computer (PC), a television (television), a teller machine, or a self-service machine.
In the step 100, the screen image area is divided equally or unequally into N areas according to the preset division rule to form N display blocks, so as to facilitate the subsequent analysis and display adjustment of the preset display parameters of each display area; wherein, the shape of each display area can be the same or different, for example, it can be rectangular; the pixel points contained in each display area can be the same or different. In practical applications, the screen may also be fixedly divided into N areas in advance according to the screen display area, and each area corresponds to one display block of the display screen.
In step 100, after receiving the image data, the electronic device needs to determine, based on the image data, the gray scale value, the image brightness, and other parameter values of each pixel point on the display screen in order to display the image, so that after determining the display screen range of each display region, the electronic device can obtain the parameter values of the target display parameters corresponding to each of the N display regions, so as to facilitate subsequent analysis to determine whether display adjustment needs to be performed on the display region; the target display parameter values include gray scale values and brightness. The corresponding relation of the gray-scale values and the brightness which are positively correlated is set, namely, in the target display parameters, the corresponding brightness can be determined uniquely for any one gray-scale value. The gray scale value in the parameter value of the target display parameter of each display block is an average value of the gray scale values of the pixel points included in each display block.
And 200, 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.
In the step 200, after the parameter value of the target display parameter of each display block in the N display blocks is obtained, the preset display parameter values of each display block may be summed according to a calculation method of an arithmetic average value, and then divided by the total number N of the display blocks to calculate an 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 areas is n and the gray scale value of the nth display area is Gn, the average display parameter Lan is (G1+ G2+ … Gn)/n.
Specifically, assuming that the total number of display tiles is 9 and the grayscale values of the 1 st to 9 th display tiles are 150, 160, 170, 180, 190, 200, 210, 220, and 230, respectively, the average display parameter Lan ═ 150+160+170+180+190+200+210+220+230 ÷ 9 ═ 190.
For example, when the preset display parameter is the brightness, if the total number of the display blocks is n and the brightness value of the nth display block is Ln, the average value of the display parameters L _ avg is (L1+ L2+ … Ln)/n.
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, and 230, respectively, the average value of the display parameters L _ avg ═ (150+160+170+180+190+200+210+215+215+220+224+230) ÷ 12 ═ 197.
And step 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 parameter of each display block.
In step 300, the target display block is a display block with a higher image contrast, that is, a display block that can be adjusted by increasing the gray scale value and decreasing the backlight brightness. In the target display parameters, the image brightness corresponding to the display block with the larger default grayscale value is also larger, so that the display block with the lower grayscale value and the higher backlight brightness in each display block, that is, the display block with the higher image contrast, can be determined by the average value of the display parameters determined in step 200 and the parameter value of the target display parameter of each display block, and meanwhile, the display block with the lower backlight brightness can be continuously reduced and used as the target display block.
In the step 400, since the contrast of the target display area is relatively 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 meets the basic display effect.
According to the display control method provided by the embodiment of the application, a display screen is divided into N display blocks in advance; then obtaining the 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; the gray scale value of the target display area is increased, and the backlight brightness of the target display area is reduced. In the display control process, the display screen is firstly partitioned, each partitioned display block can independently adjust the display parameters, then the target display block which needs to be displayed and adjusted is determined based on the parameter value of the display parameter of each display block, and the target display block is independently and flexibly displayed and adjusted, so that the display effects such as the image brightness, the contrast and the like can be dynamically adjusted, the image quality and the display effect are improved, and the gray-scale value of the partial block with the lower gray-scale value in the display image can be independently increased and the backlight brightness of the partial block is reduced when the integral gray-scale value of the display image is higher, thereby achieving the purpose of further reducing the power consumption.
Optionally, in an implementation manner of the display control method according to an embodiment of the present invention, the step 300 includes steps 301 to 303.
Step 301, determining M first display blocks of the N display blocks, wherein a parameter value of a target display parameter of the first display blocks 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, the parameter value of the target display parameter of each display block is compared with the average value of the display parameters of the N display blocks in the display screen, and the display block with the parameter value of the target display parameter greater than or equal to the average value of the display parameters is used as the first display block until the parameter values of the target display parameters of all the N display blocks are compared with the average value of the display parameters, so that M first display blocks can be determined 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 step 302, the display parameter threshold is a threshold for defining whether the display block is adjustable for displaying; the first display blocks are display blocks with the parameter value of the target display parameter 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 value of the target display parameter of each first display block, and the display blocks with the higher parameter values of the target display parameter can be screened from each display block by using the display parameter threshold value.
Step 303, determining a target display block from the N display blocks according to the parameter value of the target display parameter of each display block and the display parameter threshold.
In the step 303, according to a preset comparison rule, the parameter value of the target display parameter of each display block of the N display blocks and the display parameter threshold determined in the step S302 are calculated and compared, and a display block capable of performing screen display control, that is, the target display block, can be selected from the N display blocks.
In the foregoing embodiment, the M first display blocks with the parameter values of the target display parameters being greater than or equal to the average value of the display parameters of the display screen are used to determine the display parameter threshold for defining whether the display blocks need to be controlled for display.
Optionally, in an implementation manner of the display control method according to the embodiment of the present invention, the step 302 includes steps 3021 to 3023.
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 the preset corresponding relationship 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 relative to the display effect, i.e. to reflect the adjustable range of the gray scale value of the display block; wherein, the higher the gray scale weight value is, the smaller the corresponding display block can be adjusted. Because the preset corresponding relation stipulates 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 quickly 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 carried out on a 0-255 gray scale interval in a gamma curve in advance based on the mapping relation between the coordinated natural brightness and the subjective gray scale feeling, 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, please refer to fig. 2, which shows a schematic diagram of a corresponding relationship between a gray level value and a screen brightness in image display control, as shown in fig. 2, in order to ensure a display effect, a curve formed by the gray level value and the brightness of the screen needs to be controlled to be between a gamma2.2 curve and a gamma2.5 curve, so that the screen brightness is gradually increased along with the increase of the gray level value, and the increase of the screen brightness is continuously increased; therefore, as the gray scale value of the picture is increased, the larger the influence of changing the gray scale value of the picture according to the same increment on subjective gray scale feeling of human eyes is, in order to save energy consumption by increasing the gray scale value of the picture and reducing backlight brightness on the premise of ensuring that the display effect is not obviously changed, the higher the gray scale value is, the larger the gray scale weight value of the corresponding display block is.
For example, when the average Lan of the display parameters is 219, the preset correspondence relationship between the gray-scale values 219-255 can be shown in table 1, where γ isNIs 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 value of the N display blocks according to the gray scale weight values of the M first display blocks.
In step 3022, an average gray scale weight value of each first display block with the parameter value of the target display parameter being greater than or equal to the average value of the display parameter is calculated, specifically, the average gray scale weight value is obtained by summing the gray scale weight values of each first display block and then dividing the sum by the total number N of the display blocks.
Step 3023, determining the display parameter threshold based on the average grayscale weight value.
In step 3023, the display parameter threshold is determined based on the average gray scale weight value determined in 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 required to calculate the display parameter threshold.
In the above embodiment, a gray scale weight factor is introduced according to a target display parameter such as the currently displayed brightness or gray scale value of each display block, and a gray scale weight value of M first display blocks of which the parameter value of the target display parameter is greater than or equal to the average value of the display parameter is used to determine a display parameter threshold value for defining whether display control of the display block is required.
Optionally, in a specific implementation manner, the preset correspondence includes: a first sub-corresponding relation between the parameter value of the target display parameter and the initial gray scale weight value and a second sub-corresponding relation 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 relationship.
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 relative to the display effect, i.e. the adjustable range of the parameter value reflecting the target display parameter of the display block; wherein, the higher the initial gray scale weight value is, the smaller the adjustable range of the corresponding display block is. Because the first sub-correspondence defines the correspondence 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 quickly determined according to the parameter value of the target display parameter of each display block and the first sub-correspondence.
For example, when the average value L _ avg of the display parameter is 219, the preset corresponding relationship between the gray-scale values 219-255 can be shown in table 2, where γ isNIs 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 |
And 3212, determining an ambient light factor corresponding to each display block 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 how much the preset display parameters influence the image display effect under the current ambient light intensity, that is, how much different ambient light intensities influence the current gray-scale weight value of the display block; because the second sub-correspondence defines 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 quickly determined according to the parameter value of the target display parameter of each display block and the second sub-correspondence.
In the step 3212, the setting of the target display parameter is not only related to the picture content, but also related to the ambient light intensity, specifically, the parameter value of the target display parameter is set to be positively related to the ambient light intensity; and because the subjective gray scale feeling of human eyes is less sensitive with the increase of the ambient illumination intensity, the target display parameter of the display block can be adjusted to a smaller extent 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, so that the third corresponding relationship between the parameter value of the target display parameter and the ambient light factor needs to be set, and the third corresponding relationship can be determined in advance through experiments.
For example, when the preset average value L _ avg of the display parameter is 219, the third corresponding relationship between the gray-scale values 219-255 can be shown in table 3, where W isNIs a gray scale weight value, and N is a gray scale value.
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 block based on the initial gray scale weight value of the display block and the ambient light factor.
In the step 3213, it is considered that as the ambient light intensity increases, the color of the display screen appears as the brightness of the black field and dark tone color regions gradually increases, resulting in color gamut compression of the screen region, but the increase of the white field brightness is smaller, and the tone curve of each color also appears as level compression at the middle and low brightness, and the compression degree of the color gamut and the level of the tone at the dark tone is not only related to the ambient light intensity, but also related to 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 carried out on a 0-255 gray scale interval 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 to ambient illumination; therefore, 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 at 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 screen brightness and contrast 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 light intensity on the gray scale value adjustment and brightness adjustment of each display block is considered, not only can the screen quality and the display effect be improved, but also the gray scale value of a part of blocks with lower gray scale values in the display screen can be individually increased and the backlight brightness thereof can 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 of the display control method according to the embodiment of the present invention, the step 303 includes a step 3031.
3031, determining the display block with the 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, since the smaller the gray scale weight value is, the smaller the influence of adjusting the gray scale value of the corresponding display block on the display effect is, and the average gray scale weight value is obtained by calculating the gray scale weight value of each first display block of which the parameter value of the target display parameter is 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 value level of the display block with the higher gray scale value, the display block with the gray scale weight value less than the average gray scale weight value can be determined as the target display block, so as to screen out the display block with the lower gray scale value, the higher contrast and the better display effect from each display block, so as to reduce the overall power consumption of the display screen on the premise of ensuring the basic display effect.
Optionally, in an implementation manner of the display control method according to an embodiment of the present invention, the step 400 includes the steps of:
respectively increasing 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;
and the adjustment ranges of the gray scale value and the backlight brightness are different according to different gray scale weight values.
In the above step, since the gray scale weight value describes the importance degree of the current gray scale value of the display block relative to the display effect, it also reflects the adjustable range of the gray scale value of the display block; 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 is kept unchanged on the premise that the contrast ratio ensures the basic display effect.
In the above step, the gray scale weight value also reflects the adjustable range of the current brightness 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, since the gray scale weight value describes the importance degree of the current gray scale value of the display block relative to the display effect, and reflects the adjustable range of the current brightness of the 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 according to the gray scale weight value of each target display block, so that the picture brightness is kept unchanged on the premise that the contrast ratio ensures the basic display effect, thereby reducing the overall power consumption of the display screen.
Optionally, in an implementation manner, the display control method provided in the embodiment of the present invention further includes step 500 after the step 400.
Step 500, controlling the gray scale value of each second display block to be kept 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 step 500, since the target display region is a display region with a smaller grayscale value, the second display regions of the plurality of display regions except the target display region are display regions with a larger grayscale value, and at this time, because the corresponding contrast is smaller, in order to ensure the basic display effect, the grayscale value of each second display region may be controlled to be unchanged, and the backlight brightness of each second display region is adjusted to the preset maximum brightness, so that the user may view the display content of each second display region 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 main body may be a terminal device, or a control module used for executing the loading display control method in the terminal device. In the embodiment of the present application, a method for a terminal device to execute a loading display control is taken as an example to describe the display control method provided in the embodiment of the present application.
Referring to fig. 3, a schematic structural diagram of a display control apparatus according to an embodiment of the present application is shown, and as shown in fig. 3, a display control apparatus 30 according to an embodiment of the present application is applied to an electronic device, and the apparatus includes:
the acquiring module 31 is configured to acquire parameter values of target display parameters of N display blocks of a display screen, where the target display parameters include gray scale values or brightness; n is an integer greater than 1
A first determining module 32, configured to determine an 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;
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 a parameter value of a target display parameter of each display block;
the first control module 34 is configured to increase the gray-scale value of the target display area and decrease the backlight brightness of the target display area.
Optionally, in the display control apparatus 30, the second determining module 33 includes:
the first determining submodule is used for determining M first display blocks in the N display blocks, wherein the parameter value of the target display parameter of the first display blocks is larger than or equal to the average value of the display parameter; wherein M is a positive integer and is not more than 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 value of the target display parameter of each display block and the display parameter threshold value.
Optionally, in the display control apparatus 30, the second determining sub-module 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 the preset corresponding relation between the parameter values of the target display parameters and the gray scale weight values;
the calculation 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;
a second determining unit configured to determine the display parameter threshold based on the average grayscale weight value.
Optionally, in the display control apparatus 30, the third determining submodule is specifically configured to determine, as the target display block, a display block with a gray scale weight value smaller than the average gray scale weight value among the N display blocks.
Optionally, in the display control apparatus 30, the first control module 34 is specifically configured to increase a gray scale value of each target display block and decrease a backlight brightness of each target display block according to a gray scale weight value of each target display block;
and the adjustment ranges of the gray scale value and the backlight brightness are different according to different gray scale weight values.
Optionally, in the display control device 30, the preset corresponding relationship includes: a first sub-corresponding relation between the parameter value of the target display parameter and the initial gray scale weight value and a second sub-corresponding relation 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, according to the parameter value of the target display parameter and the second sub-correspondence, an ambient light factor corresponding to each display block;
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 kept unchanged and adjusting the backlight brightness of each second display block to be preset maximum brightness after a target display block is determined from the N display blocks based on the average value of the display parameters 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 plurality of 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 can be mobile electronic equipment or non-mobile electronic equipment. By way of example, the mobile electronic device may be a mobile phone, a tablet computer, a notebook computer, a palm top computer, a vehicle-mounted electronic device, a wearable device, an ultra-mobile personal computer (UMPC), a netbook or a Personal Digital Assistant (PDA), and the like, and the non-mobile electronic device may be a server, a Network Attached Storage (NAS), a Personal Computer (PC), a Television (TV), a teller machine or a self-service machine, and the like, and the embodiments of the present application are not particularly limited.
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 (Android) operating system, an ios operating system, or other possible operating systems, and embodiments of the present application are 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 embodiments of fig. 1 to 2, and is not described herein again to avoid repetition.
In the embodiment of the application, the display screen is divided into N display blocks in advance, then the target display block which needs 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 effects of dynamically adjusting the image brightness, the contrast and the like can be realized, the image quality and the display effect are improved, the gray scale value of the partial block with the lower gray scale value in the display image can be independently increased and the backlight brightness of the partial block with the lower gray scale value in the display image can be reduced when the integral gray scale value of the display image is higher, and the power consumption is further reduced.
Optionally, an electronic device is further provided in this embodiment of the present application, and includes 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 is executed by the processor to implement each process of the above display control method embodiment, and can achieve the same technical effect, and details are not repeated here to avoid repetition.
It should be noted that the electronic devices in the embodiments of the present application include the mobile electronic devices and the non-mobile electronic devices described above.
Fig. 4 is a schematic diagram of a 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, and a processor 4010.
Those skilled in the art will appreciate that the electronic device 40 may further include a power supply (e.g., a battery) for supplying power to various components, and the power supply may be logically connected to the processor 4010 through a power management system, so as to implement functions of managing charging, discharging, and power consumption through 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 those shown, or combine some components, or arrange different components, and thus, the description is omitted here.
The user input unit 4007 includes an image display interface in the embodiment of the present application;
the processor 4010 is 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 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; 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 display block; and increasing the gray scale value of the target display block and reducing the backlight brightness of the target display block.
The electronic equipment provided by the embodiment of the application determines the target display blocks which need to be displayed and adjusted based on the parameter values of the target display parameters of the N display blocks of the display screen, and dynamically adjusts the gray scale value and the backlight brightness of the target display blocks, so that the display effects such as the image brightness and the contrast can be dynamically adjusted, the image quality and the display effect are improved, and even when the overall gray scale value of the display image is higher, the gray scale value of the partial blocks with lower gray scale values in the display image is independently increased and the backlight brightness is reduced, so that the power consumption is further reduced.
Optionally, the processor 4010 is specifically configured to determine M first display blocks of the N display blocks, wherein a parameter value of a target display parameter of the first display blocks is greater than or equal to the display parameter average value; m is a positive integer, and 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 value of the target display parameter of each display block and the display parameter threshold value.
Optionally, the processor 4010 is specifically configured to determine 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 relationship between the parameter values of the target display parameters and the gray scale weight values; 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; determining the display parameter threshold based on the average grayscale weight value.
Optionally, the processor 4010 is specifically configured to determine, as the target display block, a display block of the N display blocks whose gray scale weight value is smaller than the average gray scale weight value.
Optionally, the processor 4010 is specifically configured to increase 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; and the adjustment ranges of the gray scale value and the backlight brightness are different according to different gray scale weight values.
Optionally, the preset corresponding relationship includes: a first sub-corresponding relation between the parameter value of the target display parameter and the initial gray scale weight value and a second sub-corresponding relation 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 of the display block and the ambient light factor.
Optionally, the processor 4010 is further configured to control the gray scale value of each second display block to remain unchanged and adjust the backlight brightness of each second display block to a preset maximum brightness after determining a target display block from each display block according to the preset display parameter average value and the preset display parameter value of each display block, where the second display block is a display block of the plurality of display blocks except the target display block.
The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, the program or the instruction implements each process of the above display control method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.
The processor is the 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 (RAM), a magnetic disk or an optical disk, and so on.
The embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to execute a program or an instruction to implement each process of the above display control method embodiment, and can achieve the same technical effect, and the details are not repeated here to avoid repetition.
It should be understood that the chips mentioned in the embodiments of the present application may also be referred to as system-on-chip, system-on-chip or system-on-chip, 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 an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present application may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present application.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
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 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;
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 display block;
and increasing the gray scale value of the target display block and reducing the backlight brightness of the target display block.
2. The method according to claim 1, wherein the determining a target display tile from the N display tiles based on the average value of the display parameters and a parameter value of the target parameter of each display tile comprises:
determining M first display blocks in the N display blocks, wherein the parameter value of a target display parameter of the first display blocks is greater than or equal to the display parameter average value; m is a positive integer, and 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 value of the target display parameter of each display block and the display parameter threshold value.
3. The method according to claim 2, wherein the step of determining the display parameter threshold according to the parameter values of the target display parameters of the M first display blocks comprises:
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 the average gray scale weight value of the N display blocks according to the gray scale weight values of the M first display blocks;
determining the display parameter threshold based on the average grayscale weight value.
4. The method according to claim 3, wherein the determining the target display region from the N display regions according to the parameter value of the target display parameter of each display region and the display parameter threshold comprises:
and determining the display block with the gray scale weight value smaller than the average gray scale weight value in the N display blocks as the target display block.
5. The method according to claim 3, wherein the step of increasing the gray-scale value of the target display area and decreasing the backlight brightness of the target display area comprises:
respectively increasing 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;
and the adjustment ranges of the gray scale value and the backlight brightness are different according to different gray scale weight values.
6. The display control method according to claim 3, wherein the preset correspondence relationship includes: a first sub-corresponding relation between the parameter value of the target display parameter and the initial gray scale weight value and a second sub-corresponding relation 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 relationship between the parameter values of the target display parameters and the gray scale weight values includes:
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 of the display block and the ambient light factor.
7. The method according to claim 1, wherein after the step of determining a target display tile from the N display tiles based on the average value of the display parameter and the parameter value of the target display parameter of each display tile, the method further comprises:
and controlling the gray-scale value of each second display block to be kept unchanged, and adjusting the backlight brightness of each second display block to be preset maximum brightness, wherein the second display block is a display block except the target display block in the plurality of display blocks.
8. A display control apparatus, characterized in that the apparatus comprises:
the device comprises an acquisition module, a display module and a display module, wherein the acquisition module is used for acquiring parameter values of target display parameters of N display blocks of a display screen, and 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;
a second determining module, configured to determine a target display block from the N display blocks based on the average value of the display parameters and a parameter value of a 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.
9. An electronic device comprising a processor, a memory, and a program or instructions stored on the memory and executable on the processor, the program or instructions when executed by the processor implementing the steps of the display control method according to claims 1-7.
10. A readable storage medium, characterized in that it stores thereon a program or instructions which, when executed by a processor, implement the steps of the display control method according to claims 1-7.
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