CN114974134A - Backlight control method and device of display equipment, storage medium and intelligent interactive panel - Google Patents
Backlight control method and device of display equipment, storage medium and intelligent interactive panel Download PDFInfo
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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
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Abstract
The invention discloses a backlight control method and device of display equipment, a storage medium and an intelligent interactive 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 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 subarea 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 highlight points with small areas.
Description
Technical Field
The invention relates to the field of display equipment, in particular to a backlight control method and device of the display equipment, a storage medium and an intelligent interactive 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 the backlight of each partition is adjusted, 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, an average brightness value of a video image is extracted to adjust the backlight brightness value of the corresponding partition.
However, when there is a highlight in an image, it is difficult for the current backlight adjusting means to adjust the backlight brightness along with the highlight, so that the backlight brightness is not matched with the displayed image. For example, fig. 1 is a sectional diagram for local dimming, and as shown in fig. 1, taking the example of adjusting the backlight of the B-section, an area a with a small area and a high brightness appears in the B-section, and since other areas of the B-section are very dark and the area occupied by the area a is small, the average brightness value of the B-section is very low, so that the backlight brightness value of the B-section is very low, in this case, the highlight area a with a small area is difficult to be seen or even cannot be seen substantially.
In view of the above-mentioned problem that the backlight brightness value of the sub-area is difficult to adjust when the sub-area of the display image includes a highlight point with a small area, no effective solution has been 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 interactive panel, which are used for at least solving the technical problem that the backlight brightness value is difficult to adjust along with a display image including a highlight point with a small 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 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 subarea to the target brightness value.
According to another aspect of the embodiments of the present invention, there is also provided a backlight control apparatus of a display device, including: 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 determination unit for determining a target brightness value according to a brightness value of the target display area; and the adjusting unit is used for adjusting the backlight brightness value of the partition to a target brightness value.
According to another aspect of embodiments of the present invention, there is also provided a computer-readable storage medium having stored thereon a plurality of instructions adapted to be loaded by a processor and to carry out the above-mentioned method steps.
According to another aspect of the embodiments 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 invention, a target display area in a partition is obtained, wherein the target display area is a display area of which the brightness value is greater than a preset brightness threshold value and the area is less 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 subarea to the target brightness value. That is to say, the present application obtains the display area with the luminance value greater than the preset luminance threshold and the area less than the preset area threshold in the partition, determines the display area as the target display area, and then determines the target luminance value for adjusting the backlight luminance value of the partition according to the luminance value of the target display area, so as to adjust the backlight luminance value of the partition to the target luminance value, thereby achieving the purpose of adjusting the backlight luminance value of the partition according to the luminance of the target display area under the condition that the display area of the partition includes the highlight with a smaller area, further solving the technical problem that the backlight luminance value is difficult to adjust accordingly under the condition that the display image includes the highlight with a smaller area, enabling the highlight with a smaller area to be displayed clearly, and avoiding the condition that the user with darker backlight is difficult to see the smaller highlight, the technical effect of better displaying highlight points with smaller area in the display image is achieved.
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The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
FIG. 1 is a sectional schematic diagram of a prior art local dimming implementation;
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 view of a zone for local dimming according to an embodiment of the present invention;
FIG. 4 is a schematic layout diagram of pixels on a partition according to an embodiment of the present invention;
fig. 5 is a schematic diagram 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 interactive tablet according to an embodiment of the present application.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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 invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above 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 invention described herein are capable of operation in sequences other than those illustrated or 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 for a display device, it should be noted that the steps illustrated in the flowchart 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 illustrated in the flowchart, in some cases, the steps illustrated 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 subarea is obtained, wherein the target display area is a display area of which the brightness value is greater than a preset brightness threshold value and the area is smaller than a preset area threshold value.
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 conditions. Alternatively, the preset brightness threshold may be a brightness value of the partition B, and the preset area threshold may be a proportional value of an area value of the partition B, for example, the area value of the partition B is P 0 Then the predetermined area threshold may be p 0 and/K, wherein K can be a constant parameter and K is greater than 1.
In the technical solution provided in step S202 of the present invention, a display image of a display screen may be divided into a plurality of regions, each region is determined as a partition, then each partition is scanned from left to right and from top to bottom, so as to obtain a display region in each partition, where a luminance value is greater than a preset luminance threshold and an area is smaller than a preset area threshold, and the display region is determined as a target display region in a corresponding partition.
In this embodiment, a partition is determined in an image, and a display area in the partition is obtained, which may be as shown in fig. 3, where fig. 3 is a schematic view of a 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, for example, the B partition is taken as an example, each pixel point in the B partition may be read from left to right and from top to bottom 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 a 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 high-brightness point with a small area, and the brightness value of the sub-area is difficult to change with the high-brightness point, and for a high-brightness point with an area larger than the preset area threshold, because the area of the high-brightness point is large, the backlight of the sub-area can be adjusted with the high-brightness point by using the current local dimming technology, and therefore the backlight adjustment by using the scheme provided by the embodiment is not needed.
Step S204, determining a target brightness value according to the brightness value of the target display area.
In the technical solution provided in step S204 of the present invention, after the target display area in the partition is obtained, the brightness value of the target display area may be determined, because the brightness value of the target display area is greater than the preset brightness threshold, and the brightness value of the target display area is relatively greater than the brightness values of other areas in the partition, the target brightness value of the partition needs to be determined according to the brightness value of the target display area, where the target brightness value is greater than the average brightness value of the image in the target display area.
For example, in a case where there is an area a (target display area) 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 And the first average brightness value of the pixel points of the B partition is L 0 When L is present 1 ≥L 0 +K 2 Then, the first average brightness value L of the pixel points of the B partition 0 The change occurs when the brightness value increment of the B partition is determined to be (L) according to the brightness value of the target display area 1 -L 0 )*K 3 The changed first average luminance value L 0 ′＝L 0 +(L 1 -L 0 )*K 3 I.e. the target brightness value is L 0 ′＝L 0 +(L 1 -L 0 )*K 3 Wherein, K is 2 And K 3 Can be a constant parameter and can be adjusted according to actual requirements.
In step S206, the backlight brightness value of the partition is adjusted to the target brightness value.
In the technical solution provided in 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') can be clearly seen in the partition (i.e., the partition B) by adjusting the backlight brightness value of the partition, and thus the backlight brightness value can be adjusted even when the display image includes a highlight point with a smaller area, so that the highlight point with a smaller area in the display image can be clearly seen.
Through the steps S202 to S206, a target display area in the partition is obtained, where the target display area is a display area whose luminance value is greater than a preset luminance threshold and whose area is less 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 subarea to the target brightness value. That is to say, in the embodiment, the display area with the luminance value larger than the preset luminance threshold and the area smaller than the preset area threshold is obtained in the partition, the display area is determined as the target display area, and then the target luminance value for adjusting the backlight luminance value of the partition is determined according to the luminance value of the target display area, so that the backlight luminance value of the partition can be adjusted to the target luminance value, and thus, the backlight luminance value of the partition can be adjusted under the condition that the display area of the partition includes the highlight with the smaller area, and further, the technical problem that the backlight luminance value is difficult to adjust along with the highlight with the smaller area in the display image is solved, and the technical effect of better displaying the highlight with the smaller area in the display image is achieved.
The above method of this example is further illustrated below.
As an alternative implementation, step S202, acquiring the target display area in the partition includes: acquiring a first average brightness value of the partition pixel points, and determining the sum of the first average brightness value and a preset brightness deviation as a brightness threshold; obtaining high-brightness pixel points of which the brightness values are larger than a brightness threshold value in the partition pixel points; and screening 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 a target display area in a partition is obtained, a first average brightness value of pixel points of the partition may be obtained first, a sum between the first average brightness value and a preset brightness deviation is determined, the sum is determined as a brightness threshold, highlight pixel points of which the brightness values are greater than the brightness threshold in the pixel points of the partition are obtained, target pixel points which are continuous in the horizontal direction and the vertical direction are screened from the highlight pixel points, and the target display area is formed by the target pixel points.
In the above embodiment, as shown in fig. 4, fig. 4 is a schematic layout diagram of pixels on a partition according to an embodiment of the present invention. In this embodiment, each pixel point in the B partition may be read in the order from left to right and from top to bottom, the first average brightness value of all pixel points in the B partition is obtained, and the first average brightness value is recorded as I 0 Then determining the first average luminance value I 0 And a preset brightness deviation K 11 Sum of both I 0 +K 11 I.e. the brightness threshold I 0 +K 11 When the brightness value I of the pixel points of the partition 11 ≥I 0 +K 11 Then, the pixel point is determined as a highlight pixel point, and the highlight pixel point is marked as m 1 n 1 Then continue reading m 1 n 1 The right pixel point, when the brightness value I of the pixel point 12 ≥I 0 +K 11 Then, the pixel point is determined as a highlight pixel point, and the highlight pixel point is marked as m 1 n 2 And repeating the steps until all the high-brightness pixel points in the partition B are read, and finally screening out m continuous in the horizontal direction from the high-brightness pixel points x A target pixel point, and n continuous in vertical direction x A target pixel point (wherein, x can beThe constant parameter can be adjusted according to actual needs, and the range is x is 2, 3, 4, …, n), and m in the horizontal direction passes through x A target pixel point and n in the vertical direction x Each target pixel point forms a target display area m x n x 。
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.
Optionally, in the above embodiment, when the brightness value of the pixel point of the partition is smaller than the brightness threshold, the pixel point is determined to be an invalid pixel point, and at this time, other pixel points in the partition B need to be read again from left to right and from top to bottom.
Alternatively, the luminance deviation K in this embodiment 11 Can be a constant parameter and can 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 implementation manner, before determining the target brightness value according to the brightness value of the target display area in step S204, the method further includes: determining the number of target display areas; and under the condition that the number of the target display areas is smaller than the first preset number, determining a target brightness value according to the brightness value of the target display areas.
In this embodiment, before determining the target brightness value according to the brightness value of the target display region, the number of the target display regions in the partition may be determined, and since the backlight brightness value of the B partition needs to be adjusted only when the backlight brightness value of the B partition is low due to the small number or small area of the target display regions in the partition, the target brightness value needs to be determined according to the brightness value of the target display region when the number of the target display regions is less than the first preset number.
Optionally, in this embodiment, when the number of the target display areas is determined, each time an effective target display area is determined, the total number of the effective display numbers of the target display areas is increased by one, and when the total number of the 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 to 1, and when the total number Y of the pixel points of the area a is greater than or equal to Y, it is determined that the area a does not exist, where Y is a preset constant parameter, and may be in a range of Y being 1, 2, 3, 4, ….
As an alternative embodiment, before determining the target brightness value according to the brightness 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 under the condition that the number of the pixel points contained in the target display area is smaller than a second preset number, determining a target brightness value according to the brightness value of the target display area, wherein the area of the pixel points of the second preset number is a preset area threshold value.
In this embodiment, when the target display area exists in the partition, before the target brightness value is determined according to the brightness value of the target display area, the number of the pixel points included in the target display area may also be obtained, and when the number is smaller than the second preset number, the target brightness value is determined according to the brightness value of the target display area. Optionally, the area of the second preset number of pixel points may be a preset area threshold.
For example, if there is a region a (target display region) in the partition B (partition), if the number of pixels included in the region a is p, then when p is less than or equal to p 0 /K 0 ，p≥K 1 Then, a target brightness value may be determined according to the brightness value of the target display area, where p 0 /K 0 I.e. a second predetermined number, K 0 And K 1 Can be a constant parameter and can be adjusted according to actual requirements, for example, K 0 May be 10, the second predetermined number may be p 0 /10。
As an alternative implementation, step S204, determining a target brightness value according to the brightness value of the target display area includes: acquiring a first average brightness value of the partition pixel points; determining 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 the target brightness value is determined according to the brightness value of the target display area, the first average brightness value of the pixel point of the partition may be obtained first, and since the brightness value of the target display area is higher than the brightness values of other areas of the partition, the brightness value increment of the partition may be determined according to the brightness value of the target display area, so that the sum of the first average brightness value and the brightness value increment may be determined as the target brightness value of the partition, and then the backlight brightness value of the partition may be adjusted to the target brightness value.
As an alternative embodiment, determining the brightness value increment according to the brightness value of the target display area includes: acquiring a second average brightness value of pixel points 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 and a preset coefficient as the brightness value increment.
In this embodiment, when determining the brightness value increment according to the brightness value of the target display area, the second average brightness of the pixel point of the target display area may be obtained first, and since the brightness value of the target display area is higher than the brightness values of the other areas of the partition, the difference between the second average brightness value of the pixel point of the target display area and the first average brightness value of the pixel point of the partition may be obtained, and then the product of the difference and the preset coefficient is determined as the brightness value increment of the partition.
For example, in the case where an area a (target display area) exists in a B-partition (partition), the average luminance of the area a is set to L 1 And the first average brightness value of the pixel points of the B partition is L 0 When L is present 1 ≥L 0 +K 2 Then, the first average brightness value L of the pixel points of the B partition 0 A change occurs in which the brightness value increment of the B partition is determined to be (L) according to the brightness value of the target display area 1 -L 0 )*K 3 The changed first average luminance value L 0 ′＝L 0 +(L 1 -L 0 )*K 3 I.e. the target brightness value is L 0 ′＝L 0 +(L 1 -L 0 )*K 3 Wherein, K is 2 And K 3 Can be a constant parameter and can be adjusted according to actual requirements.
It should be noted that, when there are 2 or more than 2 regions (target display regions) such as the region a in the B partition, as shown in fig. 3, the region a and the region a ' exist in the B partition, the total number of pixels generated by the region a ' is counted in the total number of pixels of the region a, for example, the total number of pixels generated by the region a ' is P ', the total number of pixels generated by the region a in the B partition is P + P ', and the total number of pixels of the 2 or more regions is calculated by accumulating according to this method. Optionally, by adding the constant parameter in this embodiment, the added constant parameter may be adjusted according to actual conditions, so as to expand the application range of the backlight control method of the display device in this embodiment.
In the related art, when Local Dimming is used for testing the backlight of a certain partition, the backlight brightness value of the corresponding partition is adjusted by extracting the average brightness value of a video image, when a test picture has highlight points, only a few highlight points exist in the partition, and since the backlight brightness value of the partition is very low and difficult to adjust, the highlight points are difficult to see in the partition, so that the backlight brightness value of the partition is difficult to adjust when the highlight points with small area are included in the display image of the partition.
In the backlight control method of the display device in the application, 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 as the target display area, and then the target brightness value for adjusting the subarea backlight brightness value is determined according to the brightness value of the target display area, so that the subarea backlight brightness value can be adjusted to the target brightness value, and thus, under the condition that the subarea display area comprises highlight points with smaller areas, the aim of adjusting the subarea backlight brightness value according to the brightness of the target display area is achieved, and the technical problem that the backlight brightness value is difficult to adjust under the condition that the display image comprises highlight points with smaller areas is further solved, so that the highlight points with smaller areas can be clearly displayed, and the condition that users with darker backlight are difficult to see the smaller highlight points is avoided, the technical effect of better displaying highlight points with smaller area in the display image is achieved, so that the highlight points can be clearly seen in the subareas.
Example 2
According to the embodiment of the invention, the backlight control device of the display equipment is also provided. It should be noted that the backlight control device of the display device can be used to execute the backlight control method of the display device in embodiment 1.
Fig. 5 is a schematic diagram 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 device 50 of the display apparatus 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 region in the partition, where the target display region is a display region having a luminance value greater than a preset luminance threshold and an area smaller than a preset area threshold.
A determining unit 52, configured to determine a target brightness value according to the brightness value of the target display area.
And an adjusting unit 53 for adjusting the backlight brightness value of the partition to a target brightness value.
As an alternative embodiment, the obtaining unit 51 includes: the first obtaining module is used for obtaining a first average brightness value of the partition pixel point and determining the sum of the first average brightness value and a preset brightness deviation as a brightness threshold; the second acquisition module is used for acquiring highlight pixel points with the 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 a target display area.
As an alternative embodiment, the backlight control device 50 of the display apparatus 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 device 50 of the display apparatus may further include: the second processing unit is used for acquiring the number of pixel points contained 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 pixel points of the second preset number is a preset area threshold value.
As an alternative embodiment, the determination unit 52 includes: the third acquisition module is used for acquiring the first average brightness value of the partition pixel point; the first determining module is used for determining 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 the target brightness value.
As an optional implementation, the first determining module includes: the first obtaining submodule is used for obtaining a second average brightness value of the pixel point 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 and the preset coefficient as the brightness value increment.
In the backlight control apparatus of the display device in this embodiment, the display area having the luminance value larger than the preset luminance threshold and the area smaller than the preset area threshold is obtained in the partition, the display area is determined as the target display area, and then the target luminance value for adjusting the backlight luminance value of the partition is determined according to the luminance value of the target display area, so that the backlight luminance value of the partition can be adjusted to the target luminance value, and thus, the purpose of adjusting the backlight luminance value of the partition according to the luminance value of the target display area can be achieved when the highlight 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 the highlight with a smaller area is included in the display image is solved, so that the highlight with a smaller area can be clearly displayed, and the situation that the smaller highlight is difficult to see by a darker user in backlight is avoided, the technical effect of adjusting the backlight brightness value under the condition that the display image comprises highlight points with small areas is achieved.
Example 3
There is also provided, in accordance with an embodiment of the present invention, a computer-readable storage medium having stored thereon a plurality of instructions adapted to be loaded by a processor and to carry out the method steps of any one of embodiment 1.
In this embodiment of the present application, a storage medium stores a plurality of instructions, so that a processor may load and execute the method of any one of embodiment 1 to obtain a target display region in a partition, where the target display region is a display region having a luminance value greater than a preset luminance 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 subarea to the target brightness value. According to the scheme, 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 as the target display area, 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 can be achieved under the condition that the subarea display area comprises highlight points with smaller areas is fulfilled, the technical problem that the backlight brightness value is difficult to adjust along with the highlight points with smaller areas in the displayed image is solved, the highlight points with smaller areas can be clearly displayed, and the condition that users with darker backlight are difficult to see the highlight points with smaller areas is avoided, the technical effect of better displaying highlight points with smaller area in the display image 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 the embodiment 1.
Fig. 6 is a schematic structural diagram of an intelligent interaction tablet according to an embodiment of the present application, where the intelligent interaction tablet includes the interaction device main body and the touch frame, and as shown in 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 a communication bus 602 is used to enable the connection communication between these components.
The user interface 603 may include a Display screen (Display) and a Camera (Camera), and the optional user interface 603 may also include a standard wired interface and a wireless interface.
The network interface 604 may optionally include a standard wired interface, a wireless interface (e.g., WI-FI interface).
The Memory 605 may include a Random Access Memory (RAM) or a Read-Only Memory (Read-Only Memory). Optionally, the memory 605 includes a non-transitory computer-readable medium. The 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, and the like; the storage data area may store data and the like referred to in the above respective method embodiments. The memory 605 may optionally be at least one storage device located remotely from the processor 601. As shown in fig. 6, the memory 605, which is one type of computer storage medium, may include therein an operating system, a network communication module, a user interface module, and an operating application of the smart interactive tablet.
In the intelligent interactive tablet 600 shown in fig. 6, the user interface 603 is mainly used to provide an input interface for a user to obtain data input by the user; and the processor 601 may be configured to call the operation application of the smart interactive tablet stored in the memory 605 and specifically perform any one of the operations in embodiment 1.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
In the above embodiments of the present invention, the description of each embodiment has its own emphasis, and reference may be made to the related description of other embodiments for parts that are not described in detail in a certain embodiment.
In the embodiments provided in the present application, it should be understood that the disclosed technology can be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units may be a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, units or modules, and may be in an electrical or other form.
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 position, or may be distributed on a plurality of units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
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 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 subarea to the target brightness value.
2. The method of claim 1, wherein obtaining the target display area in the partition comprises:
acquiring a first average brightness value of the partition pixel point, 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 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.
3. The method of claim 1, wherein prior to determining a target brightness value from the brightness value of the target display region, the method further comprises:
determining the number of the target display areas;
and under the condition that the number of the target display areas is smaller than a first preset number, determining a target brightness value according to the brightness value of the target display areas.
4. The method of claim 1, wherein prior to determining a target brightness value from the brightness 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 pixel points contained in the target display area is smaller than a second preset number, determining a target brightness value according to the brightness value of the target display area, wherein the area of the pixel points of the second preset number is the preset area threshold.
5. The method of claim 1, wherein determining a target brightness value based on the brightness value of the target display area comprises:
acquiring a first average brightness value of the partition pixel points;
determining brightness value increment according to the brightness value of the target display area;
determining the sum of the first average brightness value and the brightness value increment as the target brightness value.
6. The method of claim 5, wherein determining the delta brightness value based on the brightness value of the target display area comprises:
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;
and determining the product of the difference and a preset coefficient as the brightness value increment.
7. A backlight control apparatus for 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;
the determining unit is used for determining a target brightness value according to the brightness 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.
8. The apparatus of claim 7, wherein the obtaining unit comprises:
the first obtaining module is used for obtaining a first average brightness value of the partition pixel point and determining that the sum of the first average brightness value and a preset brightness deviation is the brightness threshold;
the second obtaining module is used for obtaining highlight pixel points of which the brightness values are 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.
9. A computer-readable storage medium, characterized in that it stores a plurality of instructions adapted to be loaded by a processor and to carry out the method steps according to any one of claims 1 to 6.
10. 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 6.
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