CN106205531B - Method for adjusting screen display picture and display equipment - Google Patents
Method for adjusting screen display picture and display equipment Download PDFInfo
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- CN106205531B CN106205531B CN201610648098.0A CN201610648098A CN106205531B CN 106205531 B CN106205531 B CN 106205531B CN 201610648098 A CN201610648098 A CN 201610648098A CN 106205531 B CN106205531 B CN 106205531B
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- 238000000034 method Methods 0.000 title claims abstract description 48
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- 239000004973 liquid crystal related substance Substances 0.000 description 17
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- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000003086 colorant Substances 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000001953 sensory effect Effects 0.000 description 1
- ORFSSYGWXNGVFB-UHFFFAOYSA-N sodium 4-amino-6-[[4-[4-[(8-amino-1-hydroxy-5,7-disulfonaphthalen-2-yl)diazenyl]-3-methoxyphenyl]-2-methoxyphenyl]diazenyl]-5-hydroxynaphthalene-1,3-disulfonic acid Chemical compound COC1=C(C=CC(=C1)C2=CC(=C(C=C2)N=NC3=C(C4=C(C=C3)C(=CC(=C4N)S(=O)(=O)O)S(=O)(=O)O)O)OC)N=NC5=C(C6=C(C=C5)C(=CC(=C6N)S(=O)(=O)O)S(=O)(=O)O)O.[Na+] ORFSSYGWXNGVFB-UHFFFAOYSA-N 0.000 description 1
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- 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
- G09G3/36—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 using liquid crystals
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Abstract
The invention relates to the technical field of display, in particular to a method and display equipment for adjusting a screen display picture, which are used for solving the problem that the prior art cannot display a complete picture after a screen is damaged and a dead pixel occurs, thereby influencing the view. The method of the invention comprises the following steps: determining at least one alternative display area according to the boundary position of the bad block area; selecting one alternative display area as a target display area according to the area of the alternative display area; and adjusting the display image according to the size of the target display area, and displaying the adjusted image in the target display area. The method can re-determine the target display area as the adjusted screen picture display area in the display area of the screen except the bad block area, and the target display area has no bad block which seriously influences the watching, so that the target display area can display a complete picture image, and the complete picture can be continuously displayed by avoiding the bad block area after the bad block appears on the screen.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to a method and a display device for adjusting a screen display image.
Background
An LCD (Liquid Crystal Display) is a Display that uses a Liquid Crystal transmittance control technique to realize colors. The LCD display also allows the entire body of the chassis to emit light by the technical principle of controlling the transmittance of liquid crystal, so that it is truly completely flat. In addition, the LCD display also has the advantages of no color deviation or loss, no radiation at all, no great damage to eyes even if the LCD display screen is watched for a long time, small volume, low energy consumption and the like. With the rapid development of society, liquid crystal display devices such as liquid crystal televisions have been popularized to every home. The basic principle that the screen can display is that liquid crystal material is filled between two parallel plates, and the liquid crystal screen changes the arrangement condition of internal molecules of the liquid crystal material through voltage so as to achieve the purposes of shading and transmitting light to display images with different depths and consistent errors.
The breakthrough of the screen display technology, especially the liquid crystal screen display technology, makes the liquid crystal screen devices such as televisions develop towards the direction that the display area is larger and the thickness is thinner, so that the television screen can bring more real and shocking sensory experience to users. However, larger and thinner liquid crystal screens are often subject to breakage or cracking during transportation and use. The damaged part of the liquid crystal screen can generate dead spots which can not be displayed or even dead blocks with larger area, the dead spots and the dead blocks can always display the same color no matter what image information the liquid crystal screen receives, and the integrity of the image displayed on the screen picture is damaged due to the dead spots. Such a defective dot and a defective block cannot be repaired, and the problem can be solved only by replacing the entire liquid crystal screen. The cost of the liquid crystal screen usually accounts for more than eight times of the total cost of electronic equipment such as a liquid crystal television and the like, the maintenance cost is expensive, and the maintenance time is long, so that once a dead pixel or a dead block occurs, the liquid crystal screen equipment cannot be used continuously, and great influence is caused on a user.
In summary, after the existing lcd screen is damaged, a bad block that cannot display a picture appears, and a complete picture cannot be continuously displayed, thereby easily affecting the viewing effect.
Disclosure of Invention
The invention provides a method for adjusting a screen display picture and display equipment, which are used for solving the problem that in the prior art, a complete picture cannot be displayed after a screen is damaged and a dead pixel appears, so that the watching is influenced.
The method for adjusting the screen display picture provided by the embodiment of the invention comprises the following steps:
determining at least one alternative display area from all display areas of a screen according to the boundary position of the bad block area;
selecting one alternative display area from all the alternative display areas as a target display area according to the area of the alternative display areas;
and adjusting the image to be displayed according to the size of the target display area, and displaying the adjusted image in the target display area.
The display equipment for adjusting the display picture of the screen provided by the embodiment of the invention comprises:
the alternative display area determining module is used for determining at least one alternative display area from all display areas of the screen according to the boundary position of the bad block area;
the selection module is used for selecting one alternative display area from all the alternative display areas as a target display area according to the area of the alternative display areas;
and the display module is used for adjusting the image to be displayed according to the size of the target display area and displaying the adjusted image in the target display area.
The method and the display equipment can redetermine the target display area in all the display areas of the screen except the bad block area of the screen, and the target display area is used as the adjusted screen picture display area, and the target display area has no bad block which seriously influences the watching, so that the target display area can display a complete picture image, and the complete picture can be continuously displayed by avoiding the bad block area after the bad block appears on the screen.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
FIG. 1 is a flowchart illustrating a method for adjusting a screen display according to an embodiment of the present invention;
FIG. 2 is a schematic diagram illustrating a bad block area determination method according to an embodiment of the present invention;
FIG. 3 is a schematic diagram illustrating an exemplary manner of determining a length-width ratio of an alternative display area according to an embodiment of the present invention;
FIG. 4 is a schematic view of an alternative display area according to an embodiment of the present invention;
FIG. 5 is a schematic diagram illustrating a manner of determining a target display area from a plurality of candidate display areas with the largest area according to a distance between a center position and a center position of a screen display area according to an embodiment of the present invention;
FIG. 6 is a schematic diagram illustrating a manner of determining a target display area from a plurality of candidate display areas with the largest area according to a distance between an edge and an edge of a screen display area according to an embodiment of the present invention;
FIG. 7 is a schematic diagram illustrating a manner of selecting a target display area among a plurality of candidate display areas according to an embodiment of the present invention;
FIG. 8 is a diagram illustrating an adjusted image according to an embodiment of the present invention;
FIG. 9 is a schematic diagram illustrating a zoom display according to an embodiment of the present invention;
FIG. 10 is a flowchart illustrating a method for adjusting a screen display according to an embodiment of the present invention;
fig. 11 is a schematic structural diagram of a display device for adjusting a screen display according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, 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.
As shown in fig. 1, a method for adjusting a screen display according to an embodiment of the present invention includes:
step 101: determining at least one alternative display area from all display areas of a screen according to the boundary position of the bad block area;
step 102: selecting one alternative display area from all the alternative display areas as a target display area according to the area of the alternative display areas;
step 103: and adjusting the image to be displayed according to the size of the target display area, and displaying the adjusted image in the target display area.
The bad block area is an area where the bad pixels are distributed more densely and have affected the viewing effect.
In the embodiment, the screen determines at least one alternative display area in all display areas of the screen except the bad block area by detecting the boundary position of the bad block area; determining one of the candidate display areas as a target display area according to the area of the selected candidate display area; and adjusting the image to be displayed according to the size of the target display area, and displaying the adjusted image in the target display area. By adopting the mode of the invention, the target display area can be selected at the position outside the bad block area and is taken as the adjusted screen picture display area, and the target display area has no bad block which seriously influences the watching, thereby avoiding the bad block area to continuously display the complete picture after the bad point or the bad block appears on the display screen.
Optionally, the embodiment of the present invention needs to enter a dead pixel detection mode to detect the screen, and determine whether to execute the scheme of the embodiment of the present invention according to the detection result.
The manner of entering the dead pixel detection mode includes, but is not limited to, the following:
the method is characterized in that the dead pixel detection program is automatically entered each time the computer is started, and the user does not need to perform related operations.
And in the second mode, the user actively performs dead pixel detection through the options, for example, an option for entering a dead pixel detection mode is set in a screen system menu, and the dead pixel detection mode is entered according to the selection of the user.
The above two ways of starting the dead pixel detection mode are only examples, and the embodiment of the present invention is applicable as long as the implementation of entering the detection mode can be realized.
The specific process of detecting the position of the dead point is as follows:
detecting and recording coordinate position information of the screen range pixel points;
entering a dead pixel detection mode, detecting and recording the number of dead pixels and the coordinate position information of each dead pixel;
the embodiment of the invention has various specific ways of detecting which pixel point is a dead pixel and determining the coordinate position information of the dead pixel, and the following methods are listed as follows:
in the first mode, for a full screen display of a pure color pattern (e.g., pure white, pure blue, pure black, etc.), if there is a dead pixel, the dead pixel will display a color different from the pure color pattern.
According to the embodiment of the invention, whether a dead pixel exists is judged according to the color of each pixel point in the picture of the screen displaying the pure-color pattern shot by the external camera equipment.
And if the dead pixel is found, determining the coordinate position information of the dead pixel according to the position of the dead pixel in the screen of the picture.
And in the second mode, a voltage feedback circuit is adopted to detect the dead pixel.
And a feedback circuit is arranged in the driving circuit of the pixel point, and the feedback circuit detects the voltage of the driving circuit. Because the driving voltage of the pixel at the dead pixel is low, if the driving circuit detects that the driving voltage of a certain pixel is lower than a set threshold value, the pixel is a dead pixel.
Because each pixel point corresponds to one driving circuit, as long as one driving circuit detects that the driving voltage of a certain pixel point is lower than a set threshold value, the pixel point corresponding to the driving circuit can be known as a dead pixel, and the coordinate position information of the dead pixel can be known.
The above two methods for detecting the dead pixel coordinates are only examples, and all the embodiments that can achieve dead pixel detection are dead pixel coordinate detection methods to which the embodiments of the present invention are applied.
Optionally, the number of detected dead pixels in all display areas of the screen is compared with a preset safety value, and if the number of detected dead pixels is greater than the safety value, it is determined that the dead pixels in all display areas of the screen affect the user to view the screen, so as to execute the scheme of the embodiment of the present invention, otherwise, the scheme of the embodiment of the present invention is not executed.
The embodiment of the present invention has various ways to set the security value, and the following are listed as some:
the method comprises the steps of firstly, setting the safety value to a certain numerical value, for example, 5, if the number of detected dead pixels does not reach the safety numerical value, considering that few dead pixels exist in all display areas of a screen, so that the display of the screen is not seriously influenced, ignoring the dead pixels, finishing a detection and adjustment program, and normally starting and displaying an image; and if the detected number of the dead pixels reaches the safety value, the dead pixels in the current screen are considered to influence the watching, and the position of the picture needs to be adjusted. For example, if the number of dead pixels in the detected screen is 3, the current screen picture is considered to be not required to be adjusted, and the normal startup and image display are continued; if the number of the dead pixels in the screen is detected to be a certain numerical value of 5 or more than 5 by the detection program, the watching effect is seriously influenced by the excessive number of the dead pixels in all the display areas of the screen, and the detection of the dead block area and the picture adjustment are further carried out.
In a second mode, the security value is set to be a certain proportion of the number of dead pixels to the number of all pixels on the screen, for example, one fiftieth ten-thousandth, and if the detected number of dead pixels does not reach one fiftieth-thousandth of the number of dead pixels on the screen, it is considered that a small number of dead pixels exist in all display areas of the screen, which are not enough to seriously affect the display of the screen, so that the dead pixels are ignored, the detection and adjustment program is ended, and the computer is normally started and displays the image; and if the detected number of the dead pixels reaches one fiftieth of the number of the dead pixels of the screen, the dead pixels existing in all the display areas of the current screen are considered to influence the watching, and the position of the picture needs to be adjusted. For example, for a television screen with a resolution of 1920 × 1080, the total number of pixels on the screen is 2073600(1920 × 1080), and if the number of dead pixels detected on the screen is 4, the number is less than one fiftieth of 2073600, so that the television screen continues to be normally turned on and displays images without adjusting the screen; if the number of the dead pixels in the screen detected by the detection program is 5 or more than 5, and exceeds one fiftieth of 2073600, the viewing effect is seriously affected by the excessive number of the dead pixels in all the display areas of the screen, and the detection of the dead block area and the picture adjustment are further carried out. The value of the security value determined in this way will differ somewhat for screen specific values of different resolutions.
The above-described setting method of the security value is merely an example, and any setting method of the security value that can help determine whether the screen display method needs to be adjusted can be applied to the embodiment of the present invention.
Optionally, before determining at least one alternative display area from all display areas of the screen in step 101, a bad block area needs to be determined.
Specifically, a display area of a screen is divided into a plurality of sub-areas;
for any sub-region, if the number of the dead pixels in the sub-region meets the dead block condition, taking the sub-region as a dead block region, and taking the sub-region as a dead block region.
That is to say, the embodiment of the present invention determines whether the number of bad blocks in all sub-areas of the screen meets the bad block condition, and if the number of bad blocks in any sub-area meets the bad block condition, the sub-area is regarded as a bad block area and the position information of the bad block area is recorded; and if the number of the bad blocks in all the sub-areas does not meet the bad block condition, ending the detection program and normally starting the screen.
The method for judging whether the number of the bad points in the sub-area meets the bad block condition in the embodiment of the invention has various ways, and the following ways are listed:
in the first mode, a screen display area is divided into a plurality of sub-areas, and whether the number of dead pixels in each sub-area exceeds a preset threshold is determined, for example, the screen is equally divided into 100 sub-areas, and the threshold is set to be 2. Under this condition, for example, a tv screen with a resolution of 1920 × 1080, if the number of bad blocks in a sub-area reaches 2, the number of bad blocks in the sub-area reaches the threshold, and the sub-area is determined to be a bad block area.
And in the second mode, the screen display area is divided into a plurality of sub-areas, the proportion of the number of the bad pixels in each sub-area to the number of all the pixels is judged, for example, the screen is equally divided into 100 sub-areas, and the threshold value is one ten thousandth. Under this condition, for example, a tv screen with a resolution of 1920 × 1080, if the number of bad pixels in the sub-region exceeds 2.07 (which is equal to about one ten thousandth of the number of pixels in the sub-region), the number of bad pixels in the sub-region reaches the threshold, and the sub-region is determined as a bad block region.
For example, as shown in fig. 2, all display areas of the screen are divided into a plurality of sub-areas, and whether each bad block area meets the bad block condition is determined, where area a represents a single sub-area, and area B represents a bad block area determined to meet the bad block condition. The boundary position of region B can be recorded by the system via the bad block detection procedure to help calculate the position of the display region that does not contain the bad block region.
The setting manner of the sub-region and the bad block condition is only an example, and any setting manner that can determine whether the sub-region is the sub-region of the bad block region and can determine the threshold value can be applied to the embodiment of the present invention.
When the position of the at least one candidate display area is determined in step 101, the positions of all display areas not including the bad block area may be determined according to the boundary position of the bad block area.
For example, as shown in fig. 2, the whole display area of the screen is divided into several sub-areas, area a in fig. 2 represents a single sub-area, area B represents a bad block area judged to satisfy the bad block condition, the bad block area is represented by a black rectangle in fig. 2, and the whole display area of the screen not including the bad block area is the display area not including the black bad block area in fig. 2. The boundary position of the bad block area can be determined according to the bad block area, and the boundary positions of all the non-bad block areas can also be determined. For example, the four vertices of the region B in FIG. 2 are B1、B2、B3And B4Then polygonal area B1EFGB3B2All display areas of the screen that do not contain bad block areas. Taking a television screen with a resolution of 1920 × 1080 as an example, taking point E as a coordinate origin, if the area B is composed of 100 × 100 pixels, four vertices E, F, G and B of all display areas of the screen4The coordinate positions of (b) are (0, 0), (1920, 1080) and (0, 1080), respectively. B is1、B2And B3The coordinate positions of the points can thus be calculated: b is1The horizontal and vertical coordinates of the point are 0 and 980 (equal to 1080-1The coordinates of the point are (0, 980); b is2The horizontal and vertical coordinates of the point are respectively 100 (equal to 0+100) and 980 (equal to 1080-2The coordinates of the point are (0, 980); b is3The horizontal and vertical coordinates of the point are respectively 100 (equal to 0+100) and 1080, and B is obtained3The coordinates of the point are (100, 1080). To sum up, the figures show4, all display regions not including the bad block region are point B1(0，980)、E(0，0)、F(1920，0)、G(1920，1080)、B3(100, 1080) and B2(100, 980) a polygonal area.
The above-described manner of determining all display areas not including a bad block area is merely an example, and any manner that can determine a display area not including a bad block area can be applied to the embodiments of the present invention.
Optionally, according to the length-width ratio of all the display areas, at least one alternative display area is determined from all the display areas except the bad block area of the screen.
Optionally, the aspect ratio of the selected alternative display area is the same as the aspect ratio of all the display areas of the screen.
Fig. 3 is an example to illustrate the determination method of the length-width ratio of the alternative display area:
for example, as shown in fig. 3, if the resolution of all the display areas a of the screen is 1920 × 1080, the length-width ratio of the alternative display area B should be the same as that of the area a, i.e., the length-width ratio of the area B should be equal to 1920: 1080.
The specific way of determining the alternative display area is as follows:
selecting any rectangle with the same length-width ratio as that of all display areas of the screen in all the display areas except the bad block area of the screen;
and judging whether pixel points falling into the bad block area exist in the rectangular range, and if all the pixel points in the rectangular range are not in the bad block area, considering the rectangular area as a standby display area.
For example, as shown in fig. 4, after detecting that there is a bad block area D in all display areas a of the screen, the embodiment of the present invention may obtain coordinate information of any point in the area a through calculation. In the coordinate range of the area a, four vertices are arbitrarily selected to form a rectangular area having the same aspect ratio as that of all display areas of the screen, such as the area B and the area C in fig. 4. Taking a television screen with a resolution of 1920 × 1080 as an example, the length-width ratio of the selected candidate display area should be equal to 16: 9. for example, the four vertices of the region B are B1(0, 0), B2(1280, 0), B3(1280, 720) and B4(0, 720), respectively, the length-to-width ratio of the region B is equal to 1280:720 (equal to 16:9), and therefore the region B will be considered as the eligible alternative display region. Similarly, if the aspect ratio of the selected region C is also equal to 16:9, the region C will also be considered as a qualified candidate display region. Since the embodiment of the present invention does not prohibit the overlapping regions between the candidate display regions, both the region B and the region C in fig. 4 can be candidate display regions.
The above determination method of the alternative display area is only an example, and any method that can determine the alternative display area can be applied to the embodiments of the present invention.
Optionally, in step 102, when one candidate display area is selected from all the candidate display areas as the target display area,
determining the areas of all the alternative display areas;
and selecting the candidate display area with the largest area from all the candidate display areas as a target display area.
And if a plurality of candidate display areas with the largest areas exist, selecting the candidate display area with the largest area closest to the center of the screen as the target display area.
Optionally, if there are a plurality of candidate display regions with the largest area, and the distance between the center position of the candidate display regions and the center position of the screen display region is the same, any one of the candidate display regions is selected as the target display region.
There are various ways to determine whether the candidate display area is close to the center of the screen, which are listed as follows:
in the first mode, the distance of a connecting line between the center position of each candidate display area with the largest area and the center position of the screen is compared. For example, as shown in fig. 5, in the screen area a, the areas of the candidate display area B and the candidate display area C are both the largest, and when the target display area is determined, the connection distance d between the center positions of the area B and the area a needs to be compared1And the central positions of the region C and the region AThe connecting line distance d between2If d is the same1＜d2If so, the area B is considered to be closer to the center position of the area A, so that the area B is determined to be the target display area; if d is1＝d2Then, either one of the area B and the area C is selected as the target display area.
And secondly, comparing the distance between the edge of each alternative display area and the edge of the screen display area.
For example, as shown in fig. 6, the area a and the area B are only two alternative display areas that do not include a bad block area in the screen display area, and the areas of the area a and the area B are the same. Due to the distance a from the upper edge of the area A to the upper edge of the screen display area1And the distance a from the lower edge of the area A to the lower edge of the screen display area2The absolute value of the difference between the two is less than the distance B from the upper edge of the area B to the upper edge of the screen display area1And the distance B from the lower edge of the region B to the lower edge of the screen display region2The absolute value of the difference between them, and therefore in the present embodiment, the area a is closer to the screen display area than the area B, and therefore the area a can be selected as the target display area of the present embodiment.
The above-described manner of determining whether the alternative display area is close to the center of the screen is merely an example, and any manner that can be implemented to determine whether the alternative display area is close to the center of the screen can be applied to the embodiment of the present invention.
The determination of the target display area is briefly described below using a 55-inch screen as an example:
e.g. as shown in fig. 7, point a1G, F and E respectively represent the screen display area S0Similarly, rectangle A1B1C1D1、A2B2C2D2And A3B3C3D3Respectively represent three regions S1、S2And S3Wherein the region S1、S2And S3Has a length-width ratio with respect to the screen display area S0(the length-width dimension is 1209 mm. multidot. 1096mm) has the same length-width ratio,region S1、S2And S3None of which contains bad block areas. Because the length-width ratio of the screen is equal to the screen display area S0Has the same length-width ratio and does not contain a bad block area, in the embodiment, the area S1、S2And S3Can be determined in step 101 as the alternative display area. Since step 102 requires selecting the candidate display region having the largest area as the target display region, assume region S2And region S3Has the same area and is larger than the area of other alternative display regions, and only the region S is2And region S3Can become a target display area, area S1And cannot be a target display region because of a small area. Since the situation that the areas of the plurality of candidate display regions are the largest occurs, the regions S can be compared2And region S3Ultimately determines the target display area. It is apparent that the region S in FIG. 73Closer to the screen display area S0So that the region S can be selected3As the target display area of the present embodiment.
The above-described manner of determining the target display area is merely an example, and any manner that can achieve determination of a specific one of the target display areas from among the plurality of candidate display areas can be applied to the embodiments of the present invention.
Optionally, the area of the size of the target display region in step 102 may be greater than or equal to the area of a preset minimum display region.
If the area of the target display area is smaller than the area of the minimum display area, the detection program is ended, and the picture display is damaged seriously and cannot be displayed continuously or similar information.
The mode of setting the minimum display area of the screen is various, and one of the following modes can be adopted:
in a first mode, the size of the minimum display area is set to a certain value, for example, 15 inches, if it is determined that the size of the target display area is greater than or equal to 15 inches, the area of the target display area is inevitably greater than or equal to the area of the minimum display area, the step 102 and the step 103 are continued, otherwise, the detection procedure is ended, and the screen display is "severely damaged, and cannot continue to display" or similar information.
In a second mode, the area of the minimum display area is set to a certain proportion of the area of the screen display area, for example, one third of the area of the screen display area, if it is determined that the area of the target display area is greater than or equal to one third of the area of the screen display area, the step 102 and the step 103 are continued, otherwise, the detection procedure is ended, and the picture display is "seriously damaged, and cannot continue to display" or similar information.
The above-described manner of setting the minimum display area is merely an example, and any manner that can help to determine whether the target display area is not smaller than the minimum display area can be applied to the embodiment of the present invention.
Alternatively, the user may set the area size of the minimum display area according to personal preference, for example, the user may select 15 inches or other sizes as the size of the minimum display area to achieve personalized setting.
Alternatively, different areas of the minimum display area may be set according to the size of the screen display area, a larger minimum display area may be set for a large screen, and a smaller minimum display area may be set for a small screen. For example, a minimum display area of 15 inches may be set for a screen display area of 42 inches, and a minimum display area of 20 inches may be set for a screen display area of 55 inches.
Optionally, in step 103, an image to be displayed is adjusted according to the size of the target display area, and the adjusted image is displayed in the target display area.
Optionally, replacing the image at the same position as the target display area in the preset images required to be displayed in all the display areas with the adjusted image according to the position information of the target display area, and forming a new image; and displaying the new image.
Wherein the preset image may be a black solid pattern. For example, as shown in fig. 8, after adjustment, a preset image, such as a black solid pattern, is displayed in a display area including a bad block area except for the target display area B in all the display areas a of the screen, and a zoomed image is displayed in the target display area B.
The setting manner of the preset image is only an example, and any setting manner that can realize the display of the preset image can be applied to the embodiment of the present invention.
In this embodiment, a zoomed screen is to be displayed in the target display area. The method for realizing zooming display of the picture of the screen display area comprises the following steps:
determining the scaling of a screen display picture;
any pixel point in the screen display area before zooming can be determined to correspond to the zoomed pixel point through the zooming proportion;
and displaying the picture information displayed on the pixel points before zooming on the corresponding zoomed pixel points.
Because the pixel points for display in the zoomed picture are reduced, part of picture information before zooming can not be displayed in the zoomed picture inevitably.
The zooming process of the above-mentioned picture is explained by taking fig. 9 as an example:
FIG. 9 is a schematic diagram of scaling all display regions of a screen, wherein a rectangular region S1For the screen display area before zooming, MENU1The region is a menu region displayed on a screen before zooming, and is a rectangular region S2For zoomed screen display area, MENU2The area is a menu area displayed on a screen after zooming.
The scaling is first determined. If the screen resolution before scaling is 1920 × 1080 pixels and the screen resolution after scaling is 1740 × 978 pixels, the scaling ratio in this embodiment is about 0.91(1740 ÷ 1920).
And determining the coordinate position of the scaled pixel point. The lower left corner A of the screen display area1As a starting point of the pixel coordinates, then A1The point coordinates are (0, 0). A. the1The position of the zoom lens is A2Point of falseLet A2The point is simultaneously used as the coordinate starting point of all display areas of the screen after zooming, namely A2The coordinates of the point are still (0, 0). If the screen displays a user MENU MENU before scaling1The coordinate of the lower left corner of the menu is B1(240, 135), then after scaling with equal ratio, i.e. multiplying the abscissa and ordinate of the point by the scaling ratio of 0.91, respectively, then B is obtained1Point is at A2The coordinate of the point in the coordinate system is B2(218，123)。
And displaying the picture information displayed by the pixel point before zooming at the coordinate position where the pixel point is zoomed, so as to realize zooming display. B of screen after adjustment2(218, 123) dot position, display before adjustment B1(240, 135) adjusting the front MENU according to the screen information displayed at the dot position1The pixel points in the region can be converted through scaling to correspond to the adjusted MENU2Each pixel point in the region, adjusted MENU2MENU before display adjustment of each pixel point in region1Pixel colors of corresponding pixel points in the region, thereby realizing MENU1And (4) zooming and displaying the whole area. All display areas S of the screen can be realized by the same method1The inner display screen is in the selected target display area S2The zoom display of (2).
The above-described manner is a screen zoom display process in the case where the start coordinate position of the target display area is not changed according to the embodiment of the present invention. The embodiment of the present invention can also implement the zoom display of the picture in the target display area when the initial coordinate position changes, and only the display position of the adjusted picture needs to be correspondingly adjusted, and the principle is similar to the above-mentioned embodiment, and is not described herein again.
The manner of performing the zoom display on the screen of all the display areas of the screen is only an example, and any manner that can perform the zoom display on all the display areas of the screen can be applied to the embodiment of the present invention.
Optionally, in this embodiment, the replacement of the preset image and the image subjected to scaling adjustment may be implemented by the display data buffer.
The method comprises the steps of storing preset pure color patterns which need to be displayed in all display areas into a display data cache area, then covering picture information which needs to be displayed in a target display area with the picture information at the same position of the pure color patterns in the display data cache area according to position information corresponding to the target display area, wherein the position, which is the same as the target display area of a screen, in a picture stored in the display data cache area is a zoomed picture, and other positions display preset images.
The replacement process for the picture information is as follows:
storing the image information of the preset image into the display data buffer area, taking fig. 9 as an example, at this time, the area S1The inner pixel points display pure color patterns. On the basis, the adjusted picture information is stored in a display data cache region, and the target display region S is displayed at the moment2The pixel points in the frame will receive the picture information of the corresponding pixel points before zooming, e.g. B2(218, 123) the dot position will receive B before adjustment1Picture information of (240, 135) dot positions, similarly, region S2The original preset pattern information of the inner pixel points is replaced by the adjusted picture information, so that the zoomed picture information is in the region S2Internal storage, and then region S2And the pixel points of the outer area still store preset picture information, and the preset picture and the picture information to be displayed in the target display area form a new picture.
Optionally, in the embodiment of the present invention, after the new picture is formed from the pictures in the display data buffer, the new picture in the display data buffer may be displayed through the Scale chip and the TCON screen driver board.
Optionally, the embodiment of the invention can be applied to different screen devices such as televisions, mobile phones and tablet computers.
As shown in fig. 10, a schematic diagram of specific operation steps of the method for adjusting a screen display according to an embodiment of the present invention includes:
1001, recording and storing coordinate positions of all pixel points of a screen;
step 1002, starting a dead pixel detection program, and recording coordinates and size information of dead pixels;
step 1003, judging whether the number of the bad points reaches a preset safety value, if so, executing step 1005, otherwise, executing step 1004;
step 1004, ending the detection program, normally starting up and displaying the picture;
step 1005, dividing the screen into a plurality of sub-areas, judging whether the number of the bad blocks of any one or more sub-areas reaches the bad block condition, if so, executing step 1006, otherwise, executing step 1004;
step 1006, the sub-region reaching the threshold is a bad block region;
step 1007, selecting at least one alternative display area with the same length-width ratio as the screen in all the display areas except the bad block area of the screen;
step 1008, judging whether the candidate display area with the largest area is unique, if not, executing step 1009, otherwise, executing step 1010;
step 1009, judging whether the distances between at least two areas with the largest areas and the center position of the screen are the same, if so, executing step 1011, otherwise, executing step 1012;
step 1010, taking the candidate display area with the largest area as a target display area;
step 1011, selecting any one of the alternative display areas as a target display area;
step 1012, selecting the candidate display area closest to the center position of the screen as a target display area;
step 1013, determining whether the target display area is smaller than a preset minimum display screen size, if so, executing step 1014, otherwise, executing step 1015;
step 1014, if the size of the target display area is smaller than the minimum picture size, ending the detection, and displaying information such as serious damage to the screen, no continuous use and the like;
and step 1015, replacing the images at the same positions as the target display area in the preset images required to be displayed in all the display areas with the adjusted images according to the position information of the target display area, forming new images, and displaying the new images.
Based on the same inventive concept, the embodiment of the invention also provides display equipment for adjusting the display picture of the screen. Because the principle of the device for solving the problems is similar to that of the embodiment of the present invention, the implementation of the device may refer to the implementation of the method of the present invention, and repeated details are not described herein.
As shown in fig. 11, a display device for adjusting a screen display according to an embodiment of the present invention includes:
an alternative display area determining module 1101, configured to determine at least one alternative display area from all display areas of the screen according to the boundary position of the bad block area;
a selecting module 1102, configured to select one candidate display area from all the candidate display areas as a target display area according to an area of the candidate display area;
a display module 1103, configured to adjust an image to be displayed according to the size of the target display area, and display the adjusted image in the target display area.
Optionally, the alternative display area determining module 1101 is further configured to:
dividing the display area of the screen into a plurality of sub-areas before determining at least one alternative display area from all the display areas of the screen; and for any sub-area, if the number of the dead pixels in the sub-area meets the dead block condition, taking the sub-area as a dead block area.
Optionally, the alternative display area determining module 1101 is specifically configured to:
and determining at least one alternative display area from all the display areas except the bad block area of the screen according to the length-width ratio of all the display areas.
Optionally, the length-width ratio of the alternative display area is the same as the length-width ratio of all the display areas of the screen.
Optionally, the alternative display area is rectangular;
optionally, the selecting module 1102 is specifically configured to:
and selecting the candidate display area with the largest area from all the candidate display areas as a target display area.
Optionally, the selecting module 1102 is specifically configured to:
and if the candidate display areas with the largest area are multiple, selecting the candidate display area closest to the center of the screen from the multiple candidate display areas with the largest area as the target display area.
Optionally, the size of the target display area is greater than or equal to the size of a preset minimum display area.
Optionally, the display module 1103 is specifically configured to:
replacing images at the same positions as the target display area in preset images needing to be displayed in all the display areas with the adjusted images according to the position information of the target display area, and forming new images;
and displaying the new image.
Optionally, the display module 1103 may include a display data buffer, a Scale chip, and a TCON screen driver board.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (12)
1. A method for adjusting a screen display, the method comprising:
determining at least one alternative display area from all display areas of a screen according to the boundary position of the bad block area;
selecting one alternative display area from all the alternative display areas as a target display area according to the area of the alternative display areas;
adjusting an image to be displayed according to the size of the target display area, and displaying the adjusted image in the target display area;
the images to be displayed are the images to be displayed in all the display areas;
the method further comprises determining the adjusted image according to the following method:
determining a scaling according to the resolutions of all the display areas and the resolution of the target display area;
determining a pixel point corresponding to any one pixel point in all the display areas before zooming and after zooming according to the zooming proportion;
displaying the picture information displayed on any pixel point in all the display areas before zooming on the corresponding zoomed pixel point;
before the determining at least one alternative display area from all display areas of the screen, the method further comprises:
dividing all display areas of the screen into a plurality of sub-areas;
and for any sub-area, if the number of the dead pixels in the sub-area meets the dead block condition, taking the sub-area as a dead block area.
2. The method of claim 1, wherein the alternative display area is rectangular;
the determining at least one alternative display area from all display areas of the screen comprises:
and determining at least one alternative display area from all the display areas except the bad block area of the screen according to the length-width ratio of all the display areas.
3. The method of claim 2, wherein the aspect ratio of the alternative display area is the same as the aspect ratio of all of the display areas of the screen.
4. The method of claim 1, wherein the alternative display area is rectangular;
the selecting one alternative display area from all the alternative display areas as a target display area comprises:
and selecting the candidate display area with the largest area from all the candidate display areas as a target display area.
5. The method of claim 4, wherein said selecting the candidate display region with the largest area from all the candidate display regions as the target display region comprises:
and if the candidate display areas with the largest area are multiple, selecting the candidate display area closest to the center of the screen from the multiple candidate display areas with the largest area as the target display area.
6. The method according to any one of claims 1 to 5, wherein the displaying the adjusted image in the target display area comprises:
replacing images at the same positions as the target display area in preset images needing to be displayed in all the display areas with the adjusted images according to the position information of the target display area, and forming new images;
and displaying the new image.
7. A display device for adjusting a screen display, the display device comprising:
the alternative display area determining module is used for determining at least one alternative display area from all display areas of the screen according to the boundary position of the bad block area;
the selection module is used for selecting one alternative display area from all the alternative display areas as a target display area according to the area of the alternative display areas;
the display module is used for adjusting the image to be displayed according to the size of the target display area and displaying the adjusted image in the target display area;
the images to be displayed are the images to be displayed in all the display areas;
the display module is further configured to determine the adjusted image according to the following method:
determining a scaling according to the resolutions of all the display areas and the resolution of the target display area;
determining a pixel point corresponding to any one pixel point in all the display areas before zooming and after zooming according to the zooming proportion;
displaying the picture information displayed on any pixel point in all the display areas before zooming on the corresponding zoomed pixel point;
the alternative display area determination module is further configured to:
dividing the display area of the screen into a plurality of sub-areas before determining at least one alternative display area from all the display areas of the screen; and for any sub-area, if the number of the dead pixels in the sub-area meets the dead block condition, taking the sub-area as a dead block area.
8. The device of claim 7, wherein the alternative display area is rectangular; the alternative display area determining module is specifically configured to:
and determining at least one alternative display area from all the display areas except the bad block area of the screen according to the length-width ratio of all the display areas.
9. The device of claim 7, wherein the alternative display area has a ratio of length to width that is the same as a ratio of length to width of all display areas of the screen.
10. The device of claim 7, wherein the alternative display area is rectangular; the selection module is specifically configured to:
and selecting the candidate display area with the largest area from all the candidate display areas as a target display area.
11. The device of claim 7, wherein the selection module is specifically configured to:
and if the candidate display areas with the largest area are multiple, selecting the candidate display area closest to the center of the screen from the multiple candidate display areas with the largest area as the target display area.
12. The device according to any one of claims 7 to 11, wherein the display module is specifically configured to:
replacing images at the same positions as the target display area in preset images needing to be displayed in all the display areas with the adjusted images according to the position information of the target display area, and forming new images;
and displaying the new image.
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| CN109346018A (en) * | 2018-10-25 | 2019-02-15 | 京东方科技集团股份有限公司 | Display control method and device, display device and storage medium |
| CN109523944A (en) * | 2018-12-19 | 2019-03-26 | 上海中航光电子有限公司 | A kind of display device |
| CN109616035B (en) * | 2018-12-25 | 2021-04-02 | 惠科股份有限公司 | Display panel driving method and display device |
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| CN112116574B (en) * | 2020-09-16 | 2025-02-14 | 北京小米移动软件有限公司 | Screen repair method, device and storage medium |
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