CN110490838B - Method and device for processing boundaries of areas with different resolutions of display panel - Google Patents
Method and device for processing boundaries of areas with different resolutions of display panel Download PDFInfo
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Abstract
The invention discloses a method for processing boundaries of areas with different resolutions of a display panel, which comprises the following steps: a) Arranging edge sub-pixels of areas with different resolutions; b) Detecting edge points of the low-resolution area; c) And multiplying the value of the edge point of the low resolution area by a set coefficient value and outputting the value. The invention also relates to a device for realizing the method for processing the boundary of the areas with different resolutions of the display panel. The method and the device for processing the boundary of the areas with different resolutions of the display panel have the following beneficial effects: the problems of brightness jump, unsmooth and color cast generated during transition of areas with different resolutions can be well solved.
Description
Technical Field
The present invention relates to the field of image processing, and in particular, to a method and an apparatus for processing boundaries of regions with different resolutions of a display panel.
Background
Based on the requirements of the smart phone on the comprehensive screen without hole digging and the development of the under-screen camera technology, on the same display screen, two areas with resolution ratios can appear: in the camera area, the requirements of the camera on the light entering quantity are considered, the low-resolution sub-pixels are used for arrangement, and the influence of the display screen on photographing of the camera is reduced as much as possible. The other areas are arranged with high resolution sub-pixels so as to improve the display effect of the picture.
The number of sub-pixels in the low resolution region is smaller than that in the high resolution region in the same area, and the luminance of the sub-pixels in the low resolution region needs to be increased in order to achieve the same display luminance in the two resolution regions. The luminance may be improved by increasing the driving voltage of the sub-pixels in the low resolution region, or increasing the display area, or the like. This causes problems of uneven brightness of the sub-pixels in the boundary area between the low resolution area and the high resolution area, and is prone to brightness jump, uneven color shift, and the like.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a method and a device for processing the boundary of the different resolution areas of the display panel, which can well solve the problems of brightness jump, unsmooth and color shift generated during the transition of the different resolution areas.
The technical scheme adopted for solving the technical problems is as follows: a method for constructing different resolution area boundary processing of a display panel comprises the following steps:
a) Arranging edge sub-pixels of areas with different resolutions;
b) Detecting edge points of the low-resolution area;
c) And multiplying the value of the edge point of the low resolution area by a set coefficient value and outputting the value.
In the method for processing the boundary of the different resolution areas of the display panel, the arrangement mode of the edge sub-pixels is as follows: if a row has high resolution subpixels, then it is adjacent to the low resolution subpixels; if a row has no high resolution subpixels, then the edges of the low resolution subpixels of that row have no green components; if a row has no high resolution subpixels, then the low resolution subpixels of that row and the high resolution subpixels of the two last rows above and below have one or more subpixels interleaved.
In the method for processing the boundary of the different resolution areas of the display panel, the edge sub-pixels are round edge sub-pixels, square edge sub-pixels, oval edge sub-pixels, bang edge sub-pixels or drop edge sub-pixels.
In the method for processing the boundary of the different resolution areas of the display panel, in the arrangement mode of the round edge sub-pixels, the position close to the edge is a high resolution sub-pixel, the position close to the center is a low resolution sub-pixel, when the same picture is displayed, the brightness of the low resolution sub-pixel is larger than the brightness of the high resolution sub-pixel, and the realization modes of the high resolution sub-pixel and the low resolution sub-pixel on the display panel are different.
In the method for processing the boundary of the different resolution areas of the display panel, in the arrangement mode of the square edge sub-pixels, the position close to the edge is a high resolution sub-pixel, the position close to the center is a low resolution sub-pixel, when the same picture is displayed, the brightness of the low resolution sub-pixel is larger than the brightness of the high resolution sub-pixel, and the realization modes of the high resolution sub-pixel and the low resolution sub-pixel on the display panel are different.
In the method for processing the boundary of the areas with different resolutions of the display panel, the position information of the edge points of the areas with low resolution is stored in a table, and whether the current points are the edge points of the areas with low resolution is judged through table lookup according to the positions of the current points.
The invention also relates to a device for realizing the method for processing the boundary of the areas with different resolutions of the display panel, which comprises the following steps:
edge judging unit: the information of whether the current point is an edge point or not is obtained by looking up a table according to the input coordinates and is sent to the weighting calculation unit;
weight calculation unit: and the input data is multiplied by a set coefficient value to be output according to the information of whether the edge point is sent by the edge judging unit, if the edge point is the edge point, and if the edge point is not the edge point, the input data is output.
In the device according to the invention, the coordinates comprise the abscissa and the ordinate of the current point.
In the device of the invention, the input data comprises a red input component, a green input component and a blue input component of the current point.
The method and the device for processing the boundary of the areas with different resolutions of the display panel have the following beneficial effects: the edge sub-pixels of the areas with different resolutions are arranged; detecting edge points of the low-resolution area; multiplying the value of the edge point of the low resolution area by a set coefficient value and outputting the value; according to the invention, through adjusting the arrangement of the edge sub-pixels of the areas with different resolutions and the adjustment of the edge pixel values, the problems of jump, unsmooth and color cast of brightness generated during the transition of the areas with different resolutions can be well solved.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a method for processing boundaries of regions of different resolutions of a display panel according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a high resolution type in the described embodiment;
FIG. 3 is a schematic diagram of a low resolution type in the embodiment;
FIG. 4 is a schematic diagram of a partial edge sub-pixel arrangement in the embodiment;
FIG. 5 is another schematic diagram of a partial edge sub-pixel arrangement in the embodiment;
FIG. 6 is a schematic diagram of a circular edge sub-pixel arrangement in the embodiment;
FIG. 7 is a schematic diagram of square edge sub-pixel arrangement in the embodiment;
fig. 8 is a schematic view of the structure of the device in the embodiment.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In an embodiment of the method and apparatus for processing different resolution area boundaries of a display panel according to the present invention, a flowchart of the method for processing different resolution area boundaries of the display panel is shown in fig. 1. In fig. 1, the method for processing the boundary of the different resolution areas of the display panel includes the following steps:
step S01, arranging the edge sub-pixels of the areas with different resolutions: in this step, the edge sub-pixels of the areas with different resolutions are arranged. The present embodiment relates to two resolution types, a high resolution type and a low resolution type, respectively. FIG. 2 is a schematic diagram of the high resolution type in the present embodiment; fig. 3 is a schematic diagram of the low resolution type in the present embodiment. As shown in fig. 2 and 3, this arrangement is implemented on a display panel. For the implementation of the above two resolution sub-pixels, different implementation methods are provided on the display panel, and when the same picture is displayed, the brightness of the display will be different, and the sub-pixels with low resolution will be brighter than those with high resolution. Of course, in practical applications, other resolution types may be provided, by way of example only.
FIG. 4 is a schematic diagram of a local edge sub-pixel arrangement in the present embodiment; fig. 5 is another schematic diagram of a local edge sub-pixel arrangement in the present embodiment. As shown in fig. 4 and 5, the high resolution sub-pixels are within the box, and the low resolution sub-pixels are outside the box. The arrangement of the edge sub-pixels is as follows: if a row has high resolution subpixels, then it is adjacent to the low resolution subpixels; if a row has no high resolution subpixels, then the edges of the low resolution subpixels of that row have no green components; if a row has no high resolution subpixels, then the low resolution subpixels of that row and the high resolution subpixels of the two last rows above and below have one or more subpixels interleaved. The arrangement of the sub-pixels at the edge is realized through the display panel, the arrangement can improve the color cast of the edge, and the later processing is based on the display panel which realizes the arrangement.
In order to solve the problems in the prior art, the invention creatively designs the arrangement mode of the edge sub-pixels of the high-low resolution area, and describes the arrangement mode of the round edge sub-pixels and the square edge sub-pixels.
Fig. 6 is a schematic diagram of circular edge sub-pixel arrangement in the present embodiment. In fig. 6, the position information of the sub-pixels of different resolutions is represented here with different luminances, i.e. the position information of the sub-pixels of high resolution and the sub-pixels of low resolution is represented with different luminances. The brighter (higher than or equal to the set brightness threshold) edge subpixels represent low resolution subpixels and the darker (lower than the set brightness threshold) edge subpixels represent high resolution subpixels. In the arrangement mode of the round edge sub-pixels, the position close to the edge is a high-resolution sub-pixel, and the position close to the center is a low-resolution sub-pixel. The high resolution sub-pixel distribution is relatively dense and the low resolution sub-pixel distribution is relatively sparse. When the same picture is displayed, the brightness of the low resolution sub-pixel is greater than the brightness of the high resolution sub-pixel. The implementation of the sub-pixels of different resolutions on the display panel is different, i.e. the implementation of the high resolution sub-pixels and the low resolution sub-pixels on the display panel is different.
Fig. 7 is a schematic diagram of square edge sub-pixel arrangement in the present embodiment. In fig. 7, brighter (higher than or equal to the set luminance threshold) edge subpixels denote low resolution subpixels, and darker (lower than the set luminance threshold) edge subpixels denote high resolution subpixels. In fig. 7, in the arrangement of square edge sub-pixels, the position near the edge is a high resolution sub-pixel, and the position near the center is a low resolution sub-pixel. The high resolution sub-pixel distribution is relatively dense and the low resolution sub-pixel distribution is relatively sparse. When the same picture is displayed, the brightness of the low resolution sub-pixel is larger than that of the high resolution sub-pixel, and the realization modes of the high resolution sub-pixel and the low resolution sub-pixel on the display panel are different.
Step S02 detects edge points of the low resolution region: in this step, the edge points of the low resolution area are detected. Specifically, the position information of the low resolution area edge point is stored in a table, and whether the current point is the low resolution area edge point is judged through table lookup according to the position of the current point.
Step S03, multiplying the value of the edge point of the low resolution area by the set coefficient value and outputting the value: in this step, the value of the edge point of the low resolution area is multiplied by a coefficient value set in advance, and then output. Specifically, the red input component, the green input component and the blue input component of the edge point of the low resolution area are respectively multiplied by the set coefficient values and then output, so that the brightness and the chromaticity of the edge can be smoothly transited. This step is also called edge brightness processing method. The method for processing the boundary of the different resolution areas of the display panel can well solve the problems of jump, unsmooth and color cast of brightness generated during transition of the different resolution areas by adjusting the arrangement of the edge sub-pixels of the different resolution areas and the adjustment of the pixel values of the edge.
The embodiment also relates to a device for implementing the method for processing the boundary of the different resolution areas of the display panel, and the structure schematic diagram of the device is shown in fig. 8. In fig. 8, the apparatus includes an edge judging unit 1 and a weight calculating unit 2, wherein an input terminal of the edge judging unit 1 receives inputted coordinates, an output terminal of the edge judging unit 1 is connected with one input terminal of the weight calculating unit 2, the other input terminal of the weight calculating unit 2 receives a red input component r_in, a green input component g_in and a blue input component b_in of a current point, and an output terminal of the weight calculating unit 2 outputs a red output component r_out, a green output component g_out and a blue output component b_out of the current point.
In this embodiment, a table of edge points is prepared in advance, and the table records coordinate information of all the edge points, including abscissa and ordinate, and when the coordinate of a certain point matches the coordinate in the table, the point is considered to belong to the edge point. The edge judging unit 1 is configured to look up a table according to the input coordinates to obtain information about whether the current point is an edge point, and send the information to the weighting calculating unit 2; wherein the entered coordinates include the abscissa x and the ordinate y of the current point. The weighting calculation unit 2 is configured to multiply the input data by a set coefficient value and output the original input data if the input data is not the edge point, based on the information about whether the edge point is the edge point sent from the edge determination unit. The input data includes a red input component r_in, a green input component g_in, and a blue input component b_in of the current point, and after multiplying the red input component r_in, the green input component g_in, and the blue input component b_in of the current point by set coefficient values, the corresponding red output component r_out, green output component g_out, and blue output component b_out are output through the output terminal of the weighting calculation unit 2.
The edge judgment unit 1 and the weight calculation unit 2 correspond to constitute one edge brightness processing system. The device can well solve the problems of jump, unsmooth and color cast of brightness generated during transition of areas with different resolutions by adjusting the arrangement of the edge sub-pixels in the areas with different resolutions and the adjustment of the pixel values of the edge.
In a word, the invention creatively designs two arrangement modes of the edge sub-pixels of the resolution area and an edge brightness processing method. By adjusting the arrangement of the edge sub-pixels in the areas with different resolutions and the adjustment of the pixel values of the edges, the problems of jump, unsmooth and color cast of brightness generated during transition of the areas with different resolutions can be well solved.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (1)
1. A method for processing boundaries of areas of different resolutions of a display panel, comprising the steps of:
a) Arranging edge sub-pixels of areas with different resolutions;
b) Detecting edge points of the low-resolution area;
c) Multiplying the value of the edge point of the low resolution area by a set coefficient value and outputting the value;
the arrangement mode of the edge sub-pixels is as follows: if a row has high resolution subpixels, then it is adjacent to the low resolution subpixels; if a row has no high resolution subpixels, then the edges of the low resolution subpixels of that row have no green components; if a certain row has no high resolution sub-pixels, the low resolution sub-pixels of the row and the high resolution sub-pixels of the upper and lower nearest rows are staggered by one or more sub-pixels;
the edge sub-pixels are round edge sub-pixels, square edge sub-pixels, oval edge sub-pixels, liu-bang edge sub-pixels or drop-shaped edge sub-pixels;
in the arrangement mode of the round edge sub-pixels, the position close to the edge is a high-resolution sub-pixel, the position close to the center is a low-resolution sub-pixel, when the same picture is displayed, the brightness of the low-resolution sub-pixel is larger than that of the high-resolution sub-pixel, and the realization modes of the high-resolution sub-pixel and the low-resolution sub-pixel on the display panel are different;
in the arrangement mode of the square edge sub-pixels, the position close to the edge is a high-resolution sub-pixel, the position close to the center is a low-resolution sub-pixel, when the same picture is displayed, the brightness of the low-resolution sub-pixel is larger than that of the high-resolution sub-pixel, and the realization modes of the high-resolution sub-pixel and the low-resolution sub-pixel on a display panel are different;
the position information of the low-resolution area edge points is stored in a table, and whether the current point is the low-resolution area edge point or not is judged through table lookup according to the position of the current point;
the device for realizing the method comprises the following steps:
edge judging unit: the information of whether the current point is an edge point or not is obtained by looking up a table according to the input coordinates and is sent to the weighting calculation unit;
weight calculation unit: the device is used for multiplying input data by a set coefficient value to output according to the information of whether the edge point is sent by the edge judging unit or not, if the edge point is the edge point, the input data is output if the edge point is not the edge point;
the coordinates comprise an abscissa and an ordinate of the current point;
the input data includes a red input component, a green input component, and a blue input component of the current point.
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| CN114550652B (en) | 2020-11-27 | 2023-10-27 | 京东方科技集团股份有限公司 | Display substrate and display device |
| CN113516946B (en) * | 2021-04-26 | 2023-04-04 | 北京集创北方科技股份有限公司 | Luminance compensation method and device of OLED panel, driving chip and storage medium |
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