CN114974134B - Backlight control method and device of display equipment, storage medium and intelligent interaction panel - Google Patents
Backlight control method and device of display equipment, storage medium and intelligent interaction panel Download PDFInfo
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- 238000005192 partition Methods 0.000 claims abstract description 104
- 230000002452 interceptive effect Effects 0.000 claims description 8
- 238000012216 screening Methods 0.000 claims description 4
- 238000004590 computer program Methods 0.000 claims description 3
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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
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/3406—Control of illumination source
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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
- G09G2320/0613—The adjustment depending on the type of the information to be displayed
- G09G2320/062—Adjustment of illumination source parameters
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Abstract
The invention discloses a backlight control method and device of display equipment, a storage medium and an intelligent interaction panel. Wherein the method comprises the following steps: acquiring a target display area in a partition, wherein the target display area is a display area with a brightness value larger than a preset brightness threshold and an area smaller than a preset area threshold; determining a target brightness value according to the brightness value of the target display area; and adjusting the backlight brightness value of the partition to the target brightness value. The invention solves the technical problem that the backlight brightness value is difficult to adjust under the condition that the display image comprises a high-brightness point with a smaller area.
Description
Technical Field
The invention relates to the field of display equipment, in particular to a backlight control method and device of display equipment, a storage medium and an intelligent interaction panel.
Background
Currently, when controlling the backlight of a display screen, a display area of the display screen is generally divided into a plurality of areas, each area is taken as a partition, and then backlight adjustment is performed on each partition, for example, a Local dimming (Local dimming) technology may be used to adjust the backlight of a certain partition, and when adjusting the backlight of a certain partition, the Local dimming technology is used to adjust the backlight brightness value of a corresponding partition by extracting the average brightness value of a video image.
However, when a highlight point appears in the image, the current backlight adjustment means is difficult to adjust the backlight brightness along with the highlight point, so that the backlight brightness is not matched with the displayed image. For example, fig. 1 is a schematic diagram of a partition for performing local dimming, as shown in fig. 1, taking the adjustment of the backlight of the partition B as an example, where the area a with a smaller area and a higher brightness appears in the partition B, and since the other areas of the partition B are very dark, the area a occupies a smaller area, and thus the average brightness value of the partition B is very low, so that the backlight brightness value of the partition B is very low, and in this case, the highlight area a with a smaller area is difficult to be seen, even is not substantially seen.
Aiming at the problem that the brightness value of the backlight of the subarea is difficult to adjust under the condition that the display image of the subarea comprises a highlight point with a smaller area, no effective solution is proposed at present.
Disclosure of Invention
The embodiment of the invention provides a backlight control method and device of display equipment, a storage medium and an intelligent interaction panel, which at least solve the technical problem that the backlight brightness value is difficult to adjust under the condition that a display image comprises a highlight point with a smaller area.
According to an aspect of an embodiment of the present invention, there is provided a backlight control method of a display device, including: acquiring a target display area in a partition, wherein the target display area is a display area with a brightness value larger than a preset brightness threshold and an area smaller than a preset area threshold; determining a target brightness value according to the brightness value of the target display area; and adjusting the backlight brightness value of the partition to the target brightness value.
According to another aspect of the embodiment of the present invention, there is also provided a backlight control apparatus of a display device, including: the display device comprises an acquisition unit, a display unit and a display unit, wherein the acquisition unit is used for acquiring a target display area in a partition, and the target display area is a display area with a brightness value larger than a preset brightness threshold value and an area smaller than a preset area threshold value; a determining unit configured to determine a target luminance value according to a luminance value of the target display area; and the adjusting unit is used for adjusting the backlight brightness value of the partition to the target brightness value.
According to another aspect of embodiments of the present invention, there is also provided a computer-readable storage medium storing a plurality of instructions adapted to be loaded by a processor and to perform the above-described method steps.
According to another aspect of the embodiment of the present invention, there is also provided an intelligent interactive tablet, including: a processor and a memory; wherein the memory stores a computer program adapted to be loaded by the processor and to perform the above-mentioned method steps.
In the embodiment of the application, a target display area in a partition is acquired, wherein the target display area is a display area with a brightness value larger than a preset brightness threshold value and an area smaller than a preset area threshold value; determining a target brightness value according to the brightness value of the target display area; and adjusting the backlight brightness value of the partition to the target brightness value. That is, the application obtains the display area with the brightness value larger than the preset brightness threshold and the area smaller than the preset area threshold in the subarea, determines the display area as the target display area, and then determines the target brightness value for adjusting the backlight brightness value of the subarea according to the brightness value of the target display area, so that the backlight brightness value of the subarea can be adjusted to the target brightness value, the aim of adjusting the backlight brightness value of the subarea according to the brightness of the target display area can be realized under the condition that the display area of the subarea comprises a highlight with smaller area, and the technical problem that the backlight brightness value is difficult to adjust under the condition that the display image comprises the highlight with smaller area is solved, so that the highlight with smaller area can be clearly displayed, the condition that a user is difficult to see the smaller highlight with smaller area is avoided, and the technical effect of better displaying the highlight with smaller area in the display image is achieved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:
FIG. 1 is a schematic diagram of a prior art partition for local dimming;
fig. 2 is a flowchart of a backlight control method of a display device according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a partition for local dimming according to an embodiment of the present invention;
FIG. 4 is a schematic diagram illustrating a layout of pixel points on a partition according to an embodiment of the present invention;
fig. 5 is a schematic view of a backlight control apparatus of a display device according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of an intelligent interaction panel according to an embodiment of the present application.
Detailed Description
In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects 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 the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Example 1
According to an embodiment of the present invention, there is provided an embodiment of a backlight control method of a display device, it being noted that the steps shown in the flowcharts of the drawings may be performed in a computer system such as a set of computer executable instructions, and that although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that herein.
Fig. 2 is a flowchart of a backlight control method of a display device according to an embodiment of the present invention. As shown in fig. 2, the method may include the steps of:
Step S202, a target display area in the partition is obtained, wherein the target display area is a display area with a brightness value larger than a preset brightness threshold and an area smaller than a preset area threshold.
Specifically, the preset brightness threshold and the preset area threshold may be preset values, and the preset brightness threshold and the preset area threshold may be adjusted according to actual situations. Alternatively, the preset luminance threshold may be a luminance value of the B partition, the preset area threshold may be a proportional value of an area value of the B partition, for example, the area value of the B partition is P 0, the preset area threshold may be P 0/K, where K may be a constant parameter, and K is greater than 1.
In the technical solution provided in the above step S202 of the present invention, the display image of the display screen may be divided into a plurality of regions, each region is determined as a partition, then each partition is scanned in order from left to right and from top to bottom, so as to obtain a display region in each partition, the brightness value of which is greater than the preset brightness threshold and the area of which is less than the preset area threshold, and the display region is determined as the target display region in the corresponding partition.
In this embodiment, the partition is determined in the image, and the display area in the partition is acquired, as shown in fig. 3, and fig. 3 is a schematic diagram of the partition for performing local dimming according to an embodiment of the present invention. In this embodiment, the display image may be divided into a plurality of regions, taking the B partition as an example, each pixel point in the B partition may be read in order from left to right and from top to bottom, so as to obtain a region a or a region a 'in the B partition, where the region a or the region a' is a target display region having a luminance value greater than a preset luminance threshold and an area smaller than the preset area threshold. Alternatively, the shape of the region a and the region a' in this embodiment may be different.
It should be noted that, the target display area is a highlight point with a small area, where the brightness value of the partition is difficult to change, and for a highlight point with an area greater than the preset area threshold, the area is large, so that the backlight of the partition can be adjusted by using the current local dimming technology, so that the backlight adjustment is not required by using the scheme provided by the embodiment.
Step S204, determining a target brightness value according to the brightness value of the target display area.
In the technical solution provided in the above step S204 of the present invention, after the target display area in the partition is obtained, the luminance value of the target display area may be determined, and since the luminance value of the target display area is greater than the preset luminance threshold, the luminance value of the target display area is relatively greater than other areas in the partition, and therefore, the target luminance value of the partition needs to be determined according to the luminance value of the target display area, where the target luminance value is greater than the average luminance value of the image in the target display area.
For example, in the case where the area a (target display area) exists in the B partition (partition), since the luminance value of the area a is larger than the luminance values of the other areas in the B partition, the average luminance of the area a is set to L 1, the first average luminance value of the pixels of the B partition is set to L 0, when L 1≥L0+K2, the first average luminance value L 0 of the pixels of the B partition is changed, and at this time, it is determined that the luminance value increment of the B partition is (L 1-L0)*K3) according to the luminance value of the target display area, the changed first average luminance value L 0′＝L0+(L1-L0)*K3, that is, the target luminance value is L 0′＝L0+(L1-L0)*K3, where K 2 and K 3 may be constant parameters and may be adjusted according to practical requirements.
Step S206, the backlight brightness value of the partition is adjusted to the target brightness value.
In the technical solution provided in the above step S206 of the present invention, after the target brightness value of the partition is determined, the backlight brightness value of the partition may be adjusted to the target brightness value, so that the target display area (i.e., the area a and the area a') may be clearly seen in the partition (i.e., the partition B) by adjusting the backlight brightness value of the partition, so that the backlight brightness value may be adjusted when the display image includes the highlight point with a smaller area, and thus the highlight point with a smaller area in the display image may be clearly seen.
Through the steps S202 to S206, a target display area in the partition is obtained, wherein the target display area is a display area with a brightness value greater than a preset brightness threshold and an area smaller than a preset area threshold; determining a target brightness value according to the brightness value of the target display area; and adjusting the backlight brightness value of the partition to the target brightness value. That is, in this embodiment, by acquiring a display area whose luminance value is greater than a preset luminance threshold value and whose area is smaller than a preset area threshold value in a partition, determining the display area as a target display area, and then determining a target luminance value for adjusting the backlight luminance value of the partition according to the luminance value of the target display area, the backlight luminance value of the partition can be adjusted to the target luminance value, so that the backlight luminance value of the partition can be adjusted when a highlight point with a smaller area is included in the display area of the partition, and further, the technical problem that the backlight luminance value is difficult to adjust when a highlight point with a smaller area is included in a display image is solved, and the technical effect that the highlight point with a smaller area is better displayed in the display image is achieved.
The above-described method of this embodiment is further described below.
As an optional implementation manner, step S202, obtaining a target display area in a partition includes: acquiring a first average brightness value of the partitioned pixel points, and determining the sum of the first average brightness value and a preset brightness deviation as a brightness threshold value; obtaining highlight pixel points with brightness values larger than a brightness threshold value in the partition pixel points; and selecting target pixel points which are continuous in the horizontal direction and the vertical direction from the highlight pixel points to form a target display area.
In this embodiment, when the target display area in the partition is acquired, the first average luminance value of the pixel points of the partition may be acquired first, the sum between the first average luminance value and the preset luminance deviation may be determined, then the sum may be determined as the luminance threshold value, and then the highlight pixel points with the luminance value greater than the luminance threshold value in the pixel points of the partition may be acquired, and the target pixel points continuous in both the horizontal direction and the vertical direction may be screened from the highlight pixel points, and the target display area may be formed by the target pixel points.
In the above embodiment, as shown in fig. 4, fig. 4 is a schematic layout diagram of pixel points on a partition according to an embodiment of the present invention. In this embodiment, each pixel in the B partition may be read in a left to right, top to bottom order, and a first average luminance value of all pixels in the B partition is obtained, which is denoted as I 0, and then the sum I 0+K11 between the first average luminance value I 0 and the preset luminance deviation K 11 is determined, I.e., luminance threshold I 0+K11, when the luminance value I 11≥I0+K11 of the partitioned pixel is determined to be a highlighted pixel, the highlighted pixel is noted as m 1n1, then the pixel to the right of m 1n1 is continuously read, When the brightness value I 12≥I0+K11 of the pixel point is determined, the pixel point is a highlight pixel point, the highlight pixel point is marked as m 1n2, and the like until all the highlight pixel points in the B partition are read out, finally m x target pixel points which are continuous in the horizontal direction are screened out from the highlight pixel points, And n x target pixel points continuous in the vertical direction (where x may be a constant parameter, and may be adjusted according to actual needs, and ranges are x=2, 3,4, …, n), and the target display area m xnx is formed by m x target pixel points in the horizontal direction and n x target pixel points in the vertical direction.
Alternatively, the horizontal direction and the vertical direction in the above-described embodiment may be the horizontal direction and the vertical direction in the B-partition of the square layout.
Alternatively, in the above embodiment, when the luminance value of the pixel point of the partition is smaller than the luminance threshold value, it is determined that the pixel point is an invalid pixel point, and at this time, it is necessary to read the other pixel points in the B partition again in the order from left to right and from top to bottom.
Alternatively, the luminance deviation K 11 in this embodiment may be a constant parameter, and may be adjusted according to actual requirements.
Optionally, x in this embodiment is a constant parameter, and may be adjusted according to actual requirements.
As an alternative embodiment, before determining the target luminance value according to the luminance value of the target display area in step S204, the method further includes: determining the number of target display areas; and when the number of the target display areas is smaller than the first preset number, a step of determining a target brightness value according to the brightness value of the target display area is carried out.
In this embodiment, before the target luminance value is determined according to the luminance value of the target display area, the number of target display areas in the partition may be determined first, and since the backlight luminance value of the partition B needs to be adjusted only when the number of target display areas in the partition is small or the area is small, resulting in the backlight luminance value of the partition B being low, it is necessary to determine the target luminance value according to the luminance value of the target display area in the case where the number of target display areas is smaller than the first preset number.
Optionally, in this embodiment, when determining the number of target display areas, each time an effective target display area is determined, the total number of effective display numbers of the target display areas is increased by one, and when the total number of effective display numbers of the target display areas is greater than or equal to a preset constant parameter, it is determined that the target display area does not exist.
For example, each time an effective area a (target display area) is determined, the total number Y of the effective display numbers of the area a is added by 1, and when the total number Y of the pixel points of the area a is equal to or greater than Y, the area a is determined to be absent, where Y is a preset constant parameter, and the range of y=1, 2,3,4, … may be defined.
As an alternative embodiment, before determining the target luminance value according to the luminance value of the target display area in step S204, the method further includes: acquiring the number of pixel points contained in a target display area; and when the number of the pixel points contained in the target display area is smaller than a second preset number, the step of determining the target brightness value according to the brightness value of the target display area is carried out, wherein the area of the second preset number of pixel points is a preset area threshold value.
In this embodiment, in the case where the target display area exists in the partition, the number of pixel points included in the target display area may also be acquired before the target luminance value is determined from the luminance value of the target display area, and when the number is smaller than the second preset number, the target luminance value is determined from the luminance value of the target display area. Alternatively, the area of the second preset number of pixel points may be a preset area threshold.
For example, in the case where the area a (target display area) exists in the B partition (partition), if the number of pixels included in the area a is p, when p is less than or equal to p 0/K0,p≥K1, the target luminance value may be determined according to the luminance value of the target display area, where p 0/K0 is a second preset number, K 0 and K 1 may be constant parameters, and may be adjusted according to the actual requirement, for example, K 0 may be 10, and the second preset number may be p 0/10.
As an optional implementation manner, step S204, determining the target brightness value according to the brightness value of the target display area includes: acquiring a first average brightness value of the partitioned pixel points; determining a brightness value increment according to the brightness value of the target display area; and determining the sum of the first average brightness value and the brightness value increment as a target brightness value.
In this embodiment, when determining the target luminance value according to the luminance value of the target display area, the first average luminance value of the pixel points of the partition may be obtained first, and since the luminance value of the target display area is higher than the luminance values of other areas of the partition, the luminance value increment of the partition may be determined according to the luminance value of the target display area, so that the sum between the first average luminance value and the luminance value increment may be determined as the target luminance value of the partition, and then the backlight luminance value of the partition may be adjusted to the target luminance value.
As an alternative embodiment, determining the luminance value increment according to the luminance value of the target display area includes: acquiring a second average brightness value of a pixel point of the target display area; obtaining a difference value between the second average brightness value and the first average brightness value; and determining the product of the difference value and the preset coefficient as a brightness value increment.
In this embodiment, when determining the luminance value increment according to the luminance value of the target display area, the second average luminance of the pixel point of the target display area may be acquired first, and since the luminance value of the target display area is higher relative to the luminance values of the other areas of the partition, a difference between the second average luminance value of the pixel point of the target display area and the first average luminance value of the pixel point of the partition may be acquired, and then the product of the difference and the preset coefficient may be determined as the luminance value increment of the partition.
For example, when the area a (the target display area) exists in the B partition (the partition), let the average luminance of the area a be L 1, the first average luminance value of the pixels of the B partition be L 0, and when L 1≥L0+K2, the first average luminance value L 0 of the pixels of the B partition will change, and at this time, the luminance value increment of the B partition is determined according to the luminance value of the target display area (L 1-L0)*K3, the changed first average luminance value L 0′＝L0+(L1-L0)*K3, that is, the target luminance value is L 0′＝L0+(L1-L0)*K3, where K 2 and K 3 may be constant parameters, and may be adjusted according to practical requirements.
When there are 2 or more regions a (target display regions) in the B region, as shown in fig. 3, the total number of pixels generated in the region a 'is counted in the total number of pixels in the region a, for example, the total number of pixels generated in the region a' is P ', the total number of pixels generated in the region a is P, the total number of pixels generated in the region a in the B region is p=p+p', and the total number of pixels in the region 2 or more regions is calculated by adding up the above pixels according to this method. Optionally, in this embodiment, by adding a constant parameter, the added constant parameter may be adjusted according to the actual situation, so as to expand the application range of the backlight control method of the display device of this embodiment.
In the related art, when a certain subarea backlight is tested by using Local Dimming, the average brightness value of a video image is extracted to adjust the backlight brightness value of a corresponding subarea, when a test picture has highlight points, only a few highlight points exist in the subarea, and the highlight points are difficult to be seen in the subarea because the backlight brightness value of the subarea is very low and difficult to adjust, so that the problem that the backlight brightness value of the subarea is difficult to adjust under the condition that the display image of the subarea comprises the highlight points with smaller area is caused.
According to the backlight control method of the display device, the display area with the brightness value larger than the preset brightness threshold and the area smaller than the preset area threshold is obtained in the subarea, the display area is determined to be the target display area, and then the target brightness value for adjusting the brightness value of the subarea is determined according to the brightness value of the target display area, so that the brightness value of the subarea can be adjusted to the target brightness value, the aim of adjusting the brightness value of the subarea according to the brightness of the target display area under the condition that the display area of the subarea comprises the high bright point with the smaller area can be achieved, the technical problem that the brightness value of the backlight is difficult to adjust under the condition that the display image comprises the high bright point with the smaller area is solved, the situation that a user with the smaller high bright point is difficult to see in the backlight is avoided, the technical effect that the high bright point with the smaller area in the display image is better displayed is achieved, and the aim of clearly displaying the high bright point in the subarea can be achieved.
Example 2
According to the embodiment of the invention, a backlight control device of the display equipment is also provided. Note that the backlight control apparatus of the display device may be used to execute the backlight control method of the display device in embodiment 1.
Fig. 5 is a schematic view of a backlight control apparatus of a display device according to an embodiment of the present invention. As shown in fig. 5, the backlight control apparatus 50 of the display device may include: an acquisition unit 51, a determination unit 52, and an adjustment unit 53.
The obtaining unit 51 is configured to obtain a target display area in the partition, where the target display area is a display area with a brightness value greater than a preset brightness threshold and an area smaller than a preset area threshold.
A determining unit 52 for determining a target luminance value from the luminance value of the target display area.
An adjusting unit 53 for adjusting the backlight luminance value of the partition to a target luminance value.
As an alternative embodiment, the acquisition unit 51 includes: the first acquisition module is used for acquiring a first average brightness value of the partitioned pixel points and determining the sum of the first average brightness value and a preset brightness deviation as a brightness threshold value; the second acquisition module is used for acquiring highlight pixel points with brightness values larger than a brightness threshold value in the partition pixel points; and the screening module is used for screening target pixel points which are continuous in the horizontal direction and the vertical direction from the highlighted pixel points to form a target display area.
As an alternative embodiment, the backlight control apparatus 50 of the display device may further include: a first processing unit for determining the number of target display areas; and the first execution unit is used for entering the step of determining the target brightness value according to the brightness value of the target display area under the condition that the number of the target display areas is smaller than the first preset number.
As an alternative embodiment, the backlight control apparatus 50 of the display device may further include: a second processing unit, configured to obtain the number of pixel points included in the target display area; and the second execution unit is used for entering the step of determining the target brightness value according to the brightness value of the target display area under the condition that the number of the pixel points contained in the target display area is smaller than a second preset number, wherein the area of the second preset number of the pixel points is a preset area threshold value.
As an alternative embodiment, the determining unit 52 includes: the third acquisition module is used for acquiring a first average brightness value of the partitioned pixel points; the first determining module is used for determining a brightness value increment according to the brightness value of the target display area; and the second determining module is used for determining the sum of the first average brightness value and the brightness value increment as a target brightness value.
As an alternative embodiment, the first determining module includes: the first acquisition submodule is used for acquiring a second average brightness value of the pixel points of the target display area; the second obtaining submodule is used for obtaining the difference value between the second average brightness value and the first average brightness value; and the determining submodule is used for determining the product of the difference value and the preset coefficient as the brightness value increment.
According to the backlight control device of the display equipment, the display area with the brightness value larger than the preset brightness threshold and the area smaller than the preset area threshold is obtained in the subarea, the display area is determined to be the target display area, and then the target brightness value for adjusting the brightness value of the subarea is determined according to the brightness value of the target display area, so that the brightness value of the subarea can be adjusted to the target brightness value, the aim of adjusting the brightness value of the subarea according to the brightness of the target display area under the condition that the display area of the subarea comprises the bright spots with smaller area can be achieved, the technical problem that the brightness value of the backlight is difficult to adjust under the condition that the display image comprises the bright spots with smaller area is solved, the bright spots with smaller area can be clearly displayed, and the technical effect that the brightness value of the backlight can be adjusted under the condition that the display image comprises the bright spots with smaller area is avoided.
Example 3
There is also provided, in accordance with an embodiment of the present invention, a computer-readable storage medium storing a plurality of instructions adapted to be loaded by a processor and to perform the method steps of any of embodiment 1.
In the embodiment of the application, the storage medium stores a plurality of instructions to enable the processor to load and execute the method of any one of the embodiments 1, and obtain a target display area in a partition, wherein the target display area is a display area with a brightness value greater than a preset brightness threshold and an area smaller than a preset area threshold; determining a target brightness value according to the brightness value of the target display area; and adjusting the backlight brightness value of the partition to the target brightness value. According to the scheme, the display area with the brightness value larger than the preset brightness threshold value and the area smaller than the preset area threshold value is obtained in the subarea, the display area is determined to be the target display area, and then the target brightness value for adjusting the backlight brightness value of the subarea is determined according to the brightness value of the target display area, so that the backlight brightness value of the subarea can be adjusted to the target brightness value, the aim of adjusting the backlight brightness value of the subarea according to the brightness of the target display area under the condition that the display area of the subarea comprises the highlight point with the smaller area can be achieved, the technical problem that the backlight brightness value is difficult to adjust under the condition that the display image comprises the highlight point with the smaller area is solved, the highlight point with the smaller area can be clearly displayed, the condition that a user with the smaller highlight point is difficult to see is avoided, and the technical effect that the highlight point with the smaller area in the display image is better is achieved.
Example 4
According to an embodiment of the present invention, there is also provided an intelligent interactive tablet, including: a processor and a memory; wherein the memory stores a computer program adapted to be loaded by the processor and to perform the method steps of any of embodiment 1.
Fig. 6 is a schematic structural diagram of an intelligent interaction tablet provided in an embodiment of the present application, where the intelligent interaction tablet includes the interaction device main body and the touch frame, and in combination with fig. 6, the intelligent interaction tablet 600 may include: at least one processor 601, at least one network interface 604, a user interface 603, a memory 605, at least one communication bus 602.
Wherein the communication bus 602 is used to enable connected communications between these components.
The user interface 603 may include a Display screen (Display), a Camera (Camera), and the optional user interface 603 may further include a standard wired interface, a wireless interface.
The network interface 604 may optionally include a standard wired interface, a wireless interface (e.g., WI-FI interface), among others.
Wherein the processor 601 may include one or more processing cores. The processor 601 connects the various portions of the entire intelligent interactive tablet 600 using various interfaces and lines to perform various functions of the intelligent interactive tablet 600 and process data by executing or executing instructions, programs, code sets, or instruction sets stored in the memory 605 and invoking data stored in the memory 605. Alternatively, the processor 601 may be implemented in at least one hardware form of digital signal Processing (DIGITAL SIGNAL Processing, DSP), field-Programmable gate array (Field-Programmable GATE ARRAY, FPGA), programmable logic array (Programmable Logic Array, PLA). The processor 601 may integrate one or a combination of several of a central processing unit (Central Processing Unit, CPU), an image processor (Graphics Processing Unit, GPU), and a modem, etc. The CPU mainly processes an operating system, a user interface, an application program and the like; the GPU is used for rendering and drawing the content required to be displayed by the display screen; the modem is used to handle wireless communications. It will be appreciated that the modem may not be integrated into the processor 601 and may be implemented by a single chip.
The Memory 605 may include a random access Memory (Random Access Memory, RAM) or a Read-Only Memory (Read-Only Memory). Optionally, the memory 605 includes a non-transitory computer readable medium (non-transitory computer-readable storage medium). Memory 605 may be used to store instructions, programs, code, sets of codes, or sets of instructions. The memory 605 may include a stored program area and a stored data area, wherein the stored program area may store instructions for implementing an operating system, instructions for at least one function (such as a touch function, a sound playing function, an image playing function, etc.), instructions for implementing the various method embodiments described above, etc.; the storage data area may store data or the like referred to in the above respective method embodiments. The memory 605 may also optionally be at least one storage device located remotely from the processor 601. As shown in FIG. 6, an operating system, a network communication module, a user interface module, and an operating application of the intelligent interactive tablet may be included in memory 605, which is a type of computer storage medium.
In the intelligent interactive tablet 600 shown in fig. 6, the user interface 603 is mainly used for providing an input interface for a user, and acquiring data input by the user; and processor 601 may be used to invoke the intelligent interactive tablet operating application stored in memory 605 and to perform any of the operations of embodiment 1 in particular.
The foregoing embodiment numbers of the present invention are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.
In the foregoing embodiments of the present invention, the descriptions of the embodiments are emphasized, and for a portion of this disclosure that is not described in detail in this embodiment, reference is made to the related descriptions of other embodiments.
In the several embodiments provided in the present application, it should be understood that the disclosed technology may be implemented in other manners. The above-described embodiments of the apparatus are merely exemplary, and the division of the units, for example, may be a logic function division, and may be implemented in another manner, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some interfaces, units or modules, or may be in electrical or other forms.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present invention may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied essentially or in part or all of the technical solution or in part in the form of a software product stored in a storage medium, including instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a usb disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a removable hard disk, a magnetic disk, or an optical disk, or other various media capable of storing program codes.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (8)
1. A backlight control method of a display device, comprising:
Acquiring a target display area in a partition, wherein the target display area is a display area with a brightness value larger than a preset brightness threshold and an area smaller than a preset area threshold;
determining a target brightness value according to the brightness value of the target display area comprises the following steps: acquiring a first average brightness value of the partitioned pixel points, acquiring a second average brightness value of the pixel points of the target display area, acquiring a difference value between the second average brightness value and the first average brightness value, determining a product of the difference value and a preset coefficient as a brightness value increment, and determining the sum of the first average brightness value and the brightness value increment as the target brightness value;
and adjusting the backlight brightness value of the partition to the target brightness value.
2. The method of claim 1, wherein acquiring the target display area in the partition comprises:
acquiring a first average brightness value of the partitioned pixel points, and determining the sum of the first average brightness value and a preset brightness deviation as the brightness threshold;
Obtaining highlight pixel points with brightness values larger than the brightness threshold value in the partition pixel points;
And selecting target pixel points which are continuous in the horizontal direction and the vertical direction from the highlight pixel points to form the target display area.
3. The method of claim 1, wherein prior to determining a target luminance value from the luminance value of the target display region, the method further comprises:
Determining the number of the target display areas;
And when the number of the target display areas is smaller than a first preset number, a step of determining a target brightness value according to the brightness value of the target display area is carried out.
4. The method of claim 1, wherein prior to determining a target luminance value from the luminance value of the target display region, the method further comprises:
Acquiring the number of pixel points contained in the target display area;
and under the condition that the number of the pixel points contained in the target display area is smaller than a second preset number, the method enters the step of determining a target brightness value according to the brightness value of the target display area, wherein the area of the second preset number of pixel points is the preset area threshold value.
5. A backlight control apparatus of a display device, comprising:
The device comprises an acquisition unit, a display unit and a display unit, wherein the acquisition unit is used for acquiring a target display area in a partition, and the target display area is a display area with a brightness value larger than a preset brightness threshold value and an area smaller than a preset area threshold value;
A determining unit configured to determine a target luminance value according to a luminance value of the target display area, the determining unit including: the third acquisition module is used for acquiring a first average brightness value of the partitioned pixel points; the first acquisition submodule is used for acquiring a second average brightness value of the pixel points of the target display area; the second obtaining submodule is used for obtaining the difference value between the second average brightness value and the first average brightness value; the determining submodule is used for determining the product of the difference value and a preset coefficient as a brightness value increment; the second determining module is used for determining that the sum of the first average brightness value and the brightness value increment is a target brightness value;
And the adjusting unit is used for adjusting the backlight brightness value of the partition to the target brightness value.
6. The apparatus of claim 5, wherein the acquisition unit comprises:
the first acquisition module is used for acquiring a first average brightness value of the partitioned pixel points and determining the sum of the first average brightness value and a preset brightness deviation as the brightness threshold;
The second acquisition module is used for acquiring highlight pixel points with brightness values larger than the brightness threshold value in the partition pixel points;
And the screening module is used for screening target pixel points which are continuous in the horizontal direction and the vertical direction from the highlight pixel points to form the target display area.
7. A computer readable storage medium, characterized in that it stores a plurality of instructions adapted to be loaded by a processor and to perform the method steps of any of claims 1 to 4.
8. An intelligent interactive tablet, comprising: a processor and a memory; wherein the memory stores a computer program adapted to be loaded by the processor and to perform the method steps of any of claims 1 to 4.
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