CN110223625B - Display method and display device of display panel - Google Patents
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- 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
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- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
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Abstract
The invention provides a display method and a display device of a display panel, belongs to the technical field of display, and can solve the problem that a bent edge display area in the conventional display panel is prone to color cast. The display panel comprises a main display area and an edge display area, wherein the edge display area has a certain radian. The display method of the invention comprises the following steps: obtaining a theoretical gray scale value of each pixel in the display panel according to a picture to be displayed; acquiring an actual gray-scale value of each pixel of the edge display area according to the radian of the edge display area and the theoretical gray-scale value of each pixel of the edge display area; and controlling each pixel of the main display area to display according to the respective theoretical gray-scale value, and controlling each pixel of the edge display area to display according to the respective actual gray-scale value.
Description
Technical Field
The invention belongs to the technical field of display, and particularly relates to a display method and a display device of a display panel.
Background
With the extreme pursuit of users for large screens and high screen occupation ratios, the display screens are not limited to full-screen display screens, and on the basis of the full-screen display screens, the edges of the display screens attached with cover plate glass are bent, so that the front-view frames are hidden at the side edges of the display screens.
The inventor finds that at least the following problems exist in the prior art: with the increasing of the bending angle, the edge color shift of the edge of the display screen often occurs, especially the color shift of the white picture is the most serious. And the color cast condition is more serious with the larger bending angle. For example, when the edge of the display screen is bent by 90 degrees, yellow color cast occurs on a white picture on the display screen, so that the white picture to be displayed is yellow, the display effect is influenced, and the use experience of a user is greatly reduced.
Disclosure of Invention
The present invention is directed to at least one of the technical problems of the prior art, and provides a display method and a display device of a display panel.
The technical scheme adopted for solving the technical problem is a display method of a display panel, wherein the display panel comprises a main display area and an edge display area, and the edge display area has a certain radian; the display method comprises the following steps:
acquiring a theoretical gray-scale value of each pixel in the display panel according to a picture to be displayed;
acquiring an actual gray-scale value of each pixel of the edge display area according to the radian of the edge display area and the theoretical gray-scale value of each pixel of the edge display area;
and controlling each pixel of the main display area to display according to the respective theoretical gray-scale value, and controlling each pixel of the edge display area to display according to the respective actual gray-scale value.
Optionally, the obtaining an actual gray scale value of each pixel of the edge display area includes:
acquiring a compensation gray-scale value of each pixel of the edge display area through a first preset algorithm according to the radian of the edge display area and the theoretical gray-scale value of each pixel of the edge display area;
and acquiring the actual gray scale value of each pixel of the edge display area through a second preset algorithm according to the theoretical gray scale value of each pixel of the edge display area and the compensation gray scale value of each pixel of the edge display area.
Optionally, the controlling of the pixels in the edge display area to display according to respective actual gray scale values includes:
acquiring the color cast color of the edge display area according to the corresponding relation between the pre-stored color cast color and the radian of the edge display area and the theoretical gray-scale value range of each pixel of the edge display area;
obtaining theoretical gray-scale values of sub-pixels of the edge display area according to the theoretical gray-scale values of the pixels of the edge display area;
acquiring compensation gray-scale values of sub-pixels of the edge display area according to the compensation gray-scale values of the pixels of the edge display area;
and according to the color cast color, reducing the theoretical gray scale of the sub-pixel corresponding to the color cast color according to the compensation gray scale value of each sub-pixel of the edge display area to obtain the respective actual gray scale value of each sub-pixel of the edge display area for displaying.
Optionally, the controlling of the pixels in the edge display area to display according to respective actual gray scale values includes:
acquiring the color cast color of the edge display area according to the corresponding relation between the pre-stored color cast color and the radian of the edge display area and the theoretical gray level value range of each pixel of the edge display area;
obtaining theoretical gray-scale values of sub-pixels of the edge display area according to the theoretical gray-scale values of the pixels of the edge display area;
acquiring compensation gray-scale values of sub-pixels of the edge display area according to the compensation gray-scale values of the pixels of the edge display area;
and according to the color cast color, increasing the theoretical gray scale of the sub-pixel corresponding to the color cast color according to the compensation gray scale value of each sub-pixel of the edge display area to obtain the respective actual gray scale value of each sub-pixel of the edge display area for displaying.
Optionally, the controlling of the pixels in the edge display area to display according to respective actual gray scale values includes:
obtaining theoretical gray-scale values of sub-pixels of the edge display area according to the theoretical gray-scale values of the pixels of the edge display area;
acquiring compensation gray-scale values of sub-pixels of the edge display area according to the compensation gray-scale values of the pixels of the edge display area;
and reducing the theoretical gray scale of each sub-pixel of the edge display area according to the compensation gray scale value of each sub-pixel of the edge display area to obtain the actual gray scale value of each sub-pixel of the edge display area for displaying.
The technical scheme adopted for solving the technical problem is that the display device is used for color cast compensation of a display panel, the display panel comprises a main display area and an edge display area, and the edge display area has a certain radian; the display device includes:
the theoretical gray scale value acquisition unit is used for acquiring the theoretical gray scale value of each pixel in the display panel according to the picture to be displayed;
the actual gray-scale value acquisition unit is used for acquiring the actual gray-scale value of each pixel of the edge display area according to the radian of the edge display area and the theoretical gray-scale value of each pixel of the edge display area;
and the display control unit is used for controlling each pixel of the main display area to display according to respective theoretical gray-scale value and controlling each pixel of the edge display area to display according to respective actual gray-scale value.
Optionally, the actual gray-scale value obtaining unit includes:
the compensation gray-scale value acquisition unit is used for acquiring the compensation gray-scale value of each pixel of the edge display area through a first preset algorithm according to the radian of the edge display area and the theoretical gray-scale value of each pixel of the edge display area;
and the sub-actual gray scale value acquisition unit is used for acquiring the actual gray scale value of each pixel of the edge display area through a second preset algorithm according to the theoretical gray scale value of each pixel of the edge display area and the compensation gray scale value of each pixel of the edge display area.
Optionally, the display control unit includes:
the color cast color acquisition unit is used for acquiring the color cast color of the edge display area according to the corresponding relation between the pre-stored color cast color and the radian of the edge display area and the theoretical gray level value range of each pixel of the edge display area;
a sub-theoretical gray scale value obtaining unit, configured to obtain a theoretical gray scale value of each sub-pixel in the edge display area according to a theoretical gray scale value of each pixel in the edge display area;
the sub-compensation gray-scale value acquisition unit is used for acquiring the compensation gray-scale value of each sub-pixel of the edge display area according to the compensation gray-scale value of each pixel of the edge display area;
and the sub-display control unit is used for reducing the theoretical gray scale of the sub-pixel corresponding to the color cast color according to the compensation gray scale value of each sub-pixel of the edge display area according to the color cast color so as to control each sub-pixel of the edge display area to display according to the respective actual gray scale value.
Optionally, the display control unit includes:
the color cast color acquisition unit is used for acquiring the color cast color of the edge display area according to the corresponding relation between the pre-stored color cast color and the radian of the edge display area and the theoretical gray level value range of each pixel of the edge display area;
a sub-theoretical gray scale value obtaining unit, configured to obtain a theoretical gray scale value of each sub-pixel in the edge display area according to a theoretical gray scale value of each pixel in the edge display area;
the sub-compensation gray-scale value acquisition unit is used for acquiring the compensation gray-scale value of each sub-pixel of the edge display area according to the compensation gray-scale value of each pixel of the edge display area;
and the sub-display control unit is used for increasing the theoretical gray scale of the sub-pixel corresponding to the color cast color according to the compensation gray scale value of each sub-pixel of the edge display area according to the color cast color to obtain the actual gray scale value of each sub-pixel of the edge display area for display.
Optionally, the display control unit includes:
a sub-theoretical gray scale value obtaining unit, configured to obtain a theoretical gray scale value of each sub-pixel in the edge display area according to a theoretical gray scale value of each pixel in the edge display area;
the sub-compensation gray-scale value acquisition unit is used for acquiring the compensation gray-scale value of each sub-pixel of the edge display area according to the compensation gray-scale value of each pixel of the edge display area;
and the sub-display control unit is used for reducing the theoretical gray scale of each sub-pixel of the edge display area according to the compensation gray scale value of each sub-pixel of the edge display area to obtain the actual gray scale value of each sub-pixel of the edge display area for display.
Drawings
Fig. 1 is a schematic structural diagram of a conventional display panel;
fig. 2, fig. 3, fig. 4, fig. 6, and fig. 7 are schematic flow charts of a display method according to an embodiment of the present invention;
FIG. 5a, FIG. 5b, FIG. 5c and FIG. 8 are schematic diagrams of a display method according to an embodiment of the present invention;
fig. 9-12 are schematic structural diagrams of a display device according to an embodiment of the invention;
description of reference numerals: 101-a main display area, 102-an edge display area, 901-a theoretical gray-scale value acquisition unit, 902-an actual gray-scale value acquisition unit, 903-a display control unit, 9021-a compensation gray-scale value acquisition unit, 9022-a sub-actual gray-scale value acquisition unit, 9031-a color cast color acquisition unit, 9032-a sub-theoretical gray-scale value acquisition unit, 9033-a sub-compensation gray-scale value acquisition unit and 9034-a sub-display control unit.
Detailed Description
In order to make the technical solutions of the present invention better understood, the present invention is further described in detail with reference to the accompanying drawings and the detailed description below.
At present, the front-view frame of the special-shaped display panel with the bent edge can be hidden at the side of the display screen, so that the screen occupation ratio of the terminal equipment can be improved to a certain extent, and the application is more and more extensive. However, the problem of edge color shift is also generated when the edge is bent. There are various colors of color cast, such as red color cast, green color cast, yellow color cast, etc., wherein the yellow color cast is more obvious on the white picture that should be displayed in the edge display area. The following description will be made in detail of a display method and a display device of a display panel according to the present invention, taking an example of yellow color shift of a white screen, with reference to specific embodiments and drawings.
Example one
Fig. 1 is a schematic structural diagram of a conventional display panel, which includes a main display area 101 and an edge display area 102 as shown in fig. 1, wherein the edge display area 101 has a certain curvature.
It should be noted that the main display area 101 and the edge display area 102 of the display panel are generally covered with a protective film layer such as a glass cover plate, and the edge display area 102 and the protective film layer covering the edge display area 102 have a certain curvature, so that the light-emitting angles of the edge display area 102 and the main display area 101 are different. Generally, a user views a picture displayed by the entire display panel with a viewing angle of looking at the main display area 101, and since the light emitting angles of the edge display area 102 and the main display area 101 are different, when viewing the picture displayed by the edge display area 102, the edge display area 102 may have color cast to a certain extent in a visual sense.
In view of the problem that the bending region 102 of the display panel is prone to color shift, an embodiment of the present invention provides a display method, as shown in fig. 2, the display method includes the following steps:
s201, according to the picture to be displayed, obtaining the theoretical gray-scale value of each pixel in the display panel.
In step S201, the theoretical gray-scale values of the pixels in the main display area 101 and the theoretical gray-scale values of the pixels in the edge display area 102 may be obtained according to the to-be-displayed picture of the display panel. For example, when the picture to be displayed in the main display area 101 of the display panel is a white picture, the theoretical gray-scale value of the pixel corresponding to the white picture displayed in the main display area 101 is 255. When the to-be-displayed frame of the edge display area 102 is a white frame, the theoretical gray-scale value of the pixel corresponding to the white frame displayed by the edge display area 102 is 255.
S202, acquiring the actual gray-scale value of each pixel of the edge display area according to the radian of the edge display area and the theoretical gray-scale value of each pixel of the edge display area.
In the step S202, the radian of the edge display area 102, the theoretical gray-scale value of each pixel, and the relationship between the actual gray-scale values may be obtained in advance by referring to the historical display data, and the relationship between the three may be stored in advance and a data table may be established, and the actual gray-scale value of each pixel of the edge display area 102 may be directly obtained in a table look-up manner according to the curvature of the edge display area 102 and the theoretical gray-scale value of each pixel. It will be appreciated that the greater the curvature of the bending of the edge display region 102, wherein the greater the deviation of the light exit angle of the pixels from the light exit angle of the pixels in the main display region 101, the more color shift of the edge display region 102 is visually severe. For example, if the to-be-displayed frame of the edge display area 102 is a white frame, and the edge display area 102 is bent to cause color shift, and if a data voltage corresponding to a theoretical gray-scale value 255 of the white frame is input into a pixel of the edge display area 102, the display frame is visually yellow. By inquiring a pre-stored data table of historical display data, a corresponding white picture to be displayed can be displayed by inputting a data voltage with a gray scale value of 200, and the gray scale value of 200 is the actual gray scale value of the pixel.
And S203, controlling each pixel of the main display area to display according to the respective theoretical gray-scale value, and controlling each pixel of the edge display area to display according to the respective actual gray-scale value.
In step S203, since the display image of the main display area 101 does not visually have color cast, the data voltage corresponding to the theoretical gray-scale value of the main display area 101 obtained in step S201 may be directly input into each pixel of the main display area 101, so as to display the image to be displayed with the theoretical gray-scale value. Meanwhile, since the light-emitting angle of the edge display area 102 is different from the light-emitting angle of the main display area 101, and the display image of the edge display area 102 visually has color shift, the data voltage corresponding to the actual gray scale value of the edge display area 102 obtained in the above step S202 may be input to each pixel of the edge display area 102 to adjust the gray scale value of each pixel, so that each pixel of the edge display area 102 displays the image to be displayed at the actual gray scale value, and further, the color shift of the edge display area 102 is avoided.
According to the display method provided by the embodiment of the invention, the theoretical gray scale value of the edge display area 102 is obtained according to the picture to be displayed in the edge display area 102, and the theoretical gray scale value of each pixel in the edge display area 102 is adjusted and compensated, so that each pixel in the edge display area 102 is displayed according to the actual gray scale value, and therefore, color cast caused by different light-emitting angles of the edge display area 102 and the main display area 101 is avoided, the display effect is improved, and the user experience is further improved.
Optionally, in the step S202, the actual gray-scale value of each pixel in the edge display area is obtained specifically by the following method, and a specific method thereof is as shown in fig. 3:
s301, according to the radian of the edge display area and the theoretical gray-scale value of each pixel of the edge display area, obtaining the compensation gray-scale value of each pixel of the edge display area through a first preset algorithm.
It should be noted that, when the edge display area 102 needs to display a picture to be displayed, color shift is easy to appear visually due to the difference between the light emitting angles of the edge display area 102 and the main display area 101, and color shift can be avoided by adjusting the theoretical gray-scale value of each pixel, where the adjustment amplitude value of the theoretical gray-scale value of each pixel is the compensation gray-scale value. The larger the curvature of bend of the edge display region 102 is, the larger the compensation gray scale value thereof is. By looking up the historical display data, the gray scale compensation values of the respective pixels of the edge display region 102 can be obtained.
S302, obtaining the actual gray-scale value of each pixel of the edge display area through a second preset algorithm according to the theoretical gray-scale value of each pixel of the edge display area and the compensation gray-scale value of each pixel of the edge display area.
It should be noted that the theoretical gray-scale value and the compensated gray-scale value may be superimposed or subtracted, so as to obtain the actual gray-scale value of each pixel in the edge display area 102.
In a first possible implementation manner, controlling each pixel of the edge display area to display according to the respective actual gray scale value may be implemented as follows, and a specific method thereof is as shown in fig. 4:
s401, according to the corresponding relation between the color cast color and the radian of the edge display area and the theoretical gray-scale value range of each pixel of the edge display area, the color cast color of the edge display area is obtained.
Note that, based on the history display data, the correspondence relationship between the color cast color and the radian of the edge display region 102 and the theoretical gray-scale value range of each pixel of the edge display region 102 may be stored in advance. When the radian of the edge display area 102 is determined, the color cast color of the edge display area 102 can be determined according to the theoretical gray level value of the pixel. For example, the theoretical gray scale value of the pixel in the edge display area 102 is 255, and the picture to be displayed is a white picture, however, since the light-emitting angles of the edge display area 102 and the main display area 101 are different, if the input gray scale value is 255, the picture displayed in the edge display area 102 is yellow visually, and thus when the radian of the edge display area 102 is determined, it can be determined that the color cast color of the pixel is yellow.
S402, obtaining theoretical gray-scale values of sub-pixels of the edge display area according to the theoretical gray-scale values of the pixels of the edge display area.
It should be noted that each pixel includes three sub-pixels, namely a red sub-pixel R, a green sub-pixel G, and a blue sub-pixel B, and the theoretical gray-scale value of each pixel corresponds to the component of each sub-pixel. For example, if the color of the to-be-displayed frame of a pixel in the edge display area 102 is white and the theoretical gray-scale value thereof is 255, the theoretical gray-scale values of the corresponding red sub-pixel R, green sub-pixel G, and blue sub-pixel B of the pixel are (255 ), respectively.
And S403, acquiring the compensation gray-scale value of each sub-pixel of the edge display area according to the compensation gray-scale value of each pixel of the edge display area.
For example, when the color cast is yellow, the theoretical gray-scale value of each pixel of the edge display area 102 is adjusted according to the magnitude of the compensated gray-scale value, so that the to-be-displayed image of the edge display area 102 is visually reduced from the display of the yellow image. According to the compensation gray-scale value of the pixel, the compensation pixel values corresponding to the red sub-pixel R, the green sub-pixel G and the blue sub-pixel B can be determined.
S404, according to the color cast color, the theoretical gray scale of the sub-pixel corresponding to the color cast color is reduced according to the compensation gray scale value of each sub-pixel of the edge display area, and each sub-pixel of the edge display area is obtained according to the respective actual gray scale value for displaying.
It should be noted that, when the color cast color is yellow, since yellow is displayed by the red sub-pixel R and the green sub-pixel G together, the theoretical gray scale values of the red sub-pixel R and the green sub-pixel G in the pixel in the edge display area 102 may be reduced according to the compensation gray scale value of the red sub-pixel R and the compensation gray scale value of the green sub-pixel G, so as to reduce the yellow image displayed in the image to be displayed, thereby avoiding color cast caused by the difference of the light-emitting angles of the edge display area 102 and the main display area 101.
Specifically, as shown in fig. 5a, 5b and 5c, each row of the display panel includes 1440 pixels, and the areas between the 1 st to 38 th pixels and the 1395 th to 1440 th pixels in each row are the edge display areas 102 on both sides of the display panel, respectively. When the picture to be displayed is white, the theoretical gray-scale value of each sub-pixel is (255 ). For the red sub-pixel R, the 1 st pixel may be decreased by 60 gray scale values, so that the actual gray scale value is 195, and the 2 nd to 38 th pixels are decreased according to the corresponding compensation gray scale values. The 1395 th pixel value 1400 on the other side is also decreased by the corresponding compensation gray-scale value. Similarly, for the green sub-pixel G, the theoretical gray scale value of the sub-pixel G of each pixel in the edge display region can be reduced. Finally, the sub-pixels related to the yellow image display are reduced according to a certain range, the yellow color in each pixel is weakened, the color cast of the edge display area 102 is avoided, and the display effect is improved.
In a second possible implementation manner, controlling each pixel of the edge display area to display according to the respective actual gray scale value may be implemented as follows, and a specific method thereof is shown in fig. 6:
s601, acquiring the color cast color of the edge display area according to the corresponding relation between the pre-stored color cast color and the radian of the edge display area and the theoretical gray level value range of each pixel of the edge display area.
S602, obtaining the theoretical gray-scale value of each sub-pixel of the edge display area according to the theoretical gray-scale value of each pixel of the edge display area.
S603, obtaining the compensation gray-scale value of each sub-pixel of the edge display area according to the compensation gray-scale value of each pixel of the edge display area.
S604, according to the color cast color, the theoretical gray scale of the sub-pixel corresponding to the color cast color is increased according to the compensation gray scale value of each sub-pixel of the edge display area, and the actual gray scale value of each sub-pixel of the edge display area is obtained for displaying.
The second possible implementation manner is different from the first possible implementation manner in that, in the second possible implementation manner, after obtaining the color cast color, the theoretical gray-scale value of the sub-pixel corresponding to the color cast color is increased according to the compensation gray-scale value of each sub-pixel in the edge display area, the sub-pixel with the increased theoretical gray-scale value and the sub-pixel generating the color cast color may be displayed as white together, and the theoretical gray-scale value of the sub-pixel may be increased to make the color of the sub-pixel and the color cast color mixed to be white, so that the display effect of the color cast color may be offset, and the color cast in the edge display area 102 may be avoided. For example, when the color cast is yellow, the yellow is commonly displayed by the red subpixel R and the green subpixel G, the blue displayed by the blue subpixel B can be mixed with the red subpixel R and the green subpixel B to be white together, the blue subpixel B in the pixel can be correspondingly raised according to the compensation gray scale of the subpixels, and the blue subpixel B is displayed according to the actual gray scale value, so that the blue in the pixel and the yellow of the color cast are cancelled out, thereby avoiding the color cast of the edge display area 102.
In a third possible implementation manner, in step S203, the controlling of the pixels in the edge display area to display according to the respective actual gray scale values may be implemented as follows, and a specific method thereof is as shown in fig. 7:
s701, obtaining theoretical gray-scale values of sub-pixels of the edge display area according to the theoretical gray-scale values of the pixels of the edge display area.
S702, obtaining the compensation gray-scale value of each sub-pixel of the edge display area according to the compensation gray-scale value of each pixel of the edge display area.
And S703, reducing the theoretical gray scale of each sub-pixel of the edge display area according to the compensation gray scale value of each sub-pixel of the edge display area to obtain the actual gray scale value of each sub-pixel of the edge display area for displaying.
In the first and second possible implementation manners, by adjusting the theoretical gray-scale values of the sub-pixels of each pixel of the edge display area 102 to correspondingly decrease or increase, a user can observe a picture displayed by the entire display panel at a viewing angle of the main display area 101, and the edge display area 102 avoids color cast. However, when the display screen is viewed from the front-view edge display area 102, other color shifts may occur, for example, in the above-mentioned embodiment, when the edge display area 102 has a yellow color shift, the theoretical gray-scale values of the red sub-pixel R and the green sub-pixel G are correspondingly decreased, or the theoretical gray-scale value of the blue sub-pixel B is increased, and when the display screen is viewed from the front-view edge display area 102, the display screen of the edge display area 102 may be blue. Therefore, the above two implementations are only applied to the case where the edge display area 102 displays an unimportant picture. When the edge display area 102 displays an important picture, the third possible implementation manner described above may be applied. In a third possible implementation manner, no matter what color shift occurs when the pixels in the edge display area 102 are displayed, the red sub-pixel R, the green sub-pixel G, and the blue sub-pixel B in the pixels are all decreased according to the compensation gray-scale values thereof according to the corresponding compensation gray-scale values, so as to decrease the brightness of each sub-pixel, thereby avoiding the color shift. When a user views a picture displayed on the entire display panel at a viewing angle of the front main display area 101, the edge display area 102 is only darkened to a certain extent, and the display quality of the important picture is not affected, and other color cast does not occur.
As shown in fig. 8, by reducing the theoretical gray-scale value of each sub-pixel in a row of pixels, the occurrence of color difference can be avoided, and the implementation principle is similar to that of the method shown in fig. 5, and is not repeated here.
Example two
Based on the same inventive concept, embodiments of the present invention provide a display device for color shift compensation of a display panel, where the display panel includes a main display area and an edge display area, and the edge display area has a certain radian. Fig. 9 is a schematic structural diagram of a display device according to an embodiment of the present invention, and as shown in fig. 9, the display device includes: a theoretical gray-scale value acquisition unit 901, an actual gray-scale value acquisition unit 902, and a display control unit 903.
The theoretical gray scale value obtaining unit 901 is configured to obtain a theoretical gray scale value of each pixel in the display panel according to the to-be-displayed picture.
The actual gray-scale value obtaining unit 902 is configured to obtain an actual gray-scale value of each pixel in the edge display area according to the radian of the edge display area and the theoretical gray-scale value of each pixel in the edge display area.
The display control unit 903 is configured to control each pixel of the main display area to display according to a respective theoretical gray scale value, and control each pixel of the edge display area to display according to a respective actual gray scale value.
Alternatively, as shown in fig. 10, the actual grayscale value acquiring unit 902 includes: a compensation gray-scale value acquisition unit 9021 and a sub-actual gray-scale value acquisition unit 9022.
The compensation gray-scale value obtaining unit 9021 is configured to obtain, according to the radian of the edge display area and the theoretical gray-scale value of each pixel in the edge display area, a compensation gray-scale value of each pixel in the edge display area through a first preset algorithm.
The sub-actual gray scale value obtaining unit 9022 is configured to obtain, according to the theoretical gray scale value of each pixel in the edge display area and the compensation gray scale value of each pixel in the edge display area, an actual gray scale value of each pixel in the edge display area through a second preset algorithm.
Alternatively, as shown in fig. 11, the display control unit 903 includes: a color cast color obtaining unit 9031, a sub-theoretical gray scale value obtaining unit 9032, a sub-compensation gray scale value obtaining unit 9033, and a sub-display control unit 9034.
The color cast color obtaining unit 9031 is configured to obtain the color cast color of the edge display area according to a correspondence relationship between the color cast color and the radian of the edge display area, which are stored in advance, and a theoretical gray scale value range of each pixel of the edge display area.
The sub-theoretical gray scale value obtaining unit 9032 is configured to obtain a theoretical gray scale value of each sub-pixel in the edge display area according to the theoretical gray scale value of each pixel in the edge display area.
The sub-compensation gray-scale value obtaining unit 9033 is configured to obtain, according to the compensation gray-scale value of each pixel in the edge display area, a compensation gray-scale value of each sub-pixel in the edge display area.
The sub-display control unit 9034 is configured to reduce, according to the color cast color, the theoretical gray scale of the sub-pixel corresponding to the color cast color according to the compensation gray scale value of each sub-pixel in the edge display area, to obtain an actual gray scale value of each sub-pixel in the edge display area, and perform display.
Alternatively, as shown in fig. 11, the display control unit 903 includes: a color cast color obtaining unit 9031, a sub-theoretical gray scale value obtaining unit 9032, a sub-compensation gray scale value obtaining unit 9033, and a sub-display control unit 9034.
And a color cast color obtaining unit 9031, configured to obtain a color cast color of the edge display area according to a correspondence between a pre-stored color cast color and the radian of the edge display area and a theoretical gray scale value range of each pixel of the edge display area.
And a sub-theoretical gray-scale value obtaining unit 9032, configured to obtain a theoretical gray-scale value of each sub-pixel in the edge display area according to the theoretical gray-scale value of each pixel in the edge display area.
The sub-compensation gray-scale value obtaining unit 9033 is configured to obtain a compensation gray-scale value of each sub-pixel in the edge display area according to the compensation gray-scale value of each pixel in the edge display area.
And the sub-display control unit 9034 is configured to, according to the color cast color, raise the theoretical gray scale of the sub-pixel corresponding to the color cast color according to the compensation gray scale value of each sub-pixel in the edge display area, to obtain an actual gray scale value of each sub-pixel in the edge display area, and perform display.
Alternatively, as shown in fig. 12, the display control unit 903 includes: a sub-theoretical gray-scale value acquisition unit 9032, a sub-compensation gray-scale value acquisition unit 9033, and a sub-display control unit 9034.
The sub-theoretical gray scale value obtaining unit 9032 is configured to obtain a theoretical gray scale value of each sub-pixel in the edge display area according to the theoretical gray scale value of each pixel in the edge display area.
The sub-compensation gray-scale value obtaining unit 9033 is configured to obtain a compensation gray-scale value of each sub-pixel in the edge display area according to the compensation gray-scale value of each pixel in the edge display area.
The sub-display control unit 9034 is configured to reduce the theoretical gray scale of each sub-pixel in the edge display area according to the compensation gray scale value of each sub-pixel in the edge display area, to obtain an actual gray scale value of each sub-pixel in the edge display area, and perform display.
It should be noted that the display device provided in the embodiment of the present invention can be used to implement the display method provided in any one of the embodiments, and the implementation principle type thereof is not described herein again.
It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.
Claims (8)
1. A display method of a display panel comprises a main display area and an edge display area, wherein the edge display area has a certain radian; the display method is characterized by comprising the following steps:
acquiring a theoretical gray scale value of each pixel in the display panel according to a picture to be displayed;
acquiring an actual gray-scale value of each pixel of the edge display area according to the radian of the edge display area and the theoretical gray-scale value of each pixel of the edge display area;
controlling each pixel of the main display area to display according to respective theoretical gray-scale value, and controlling each pixel of the edge display area to display according to respective actual gray-scale value;
the controlling of the display of each pixel of the edge display area according to the respective actual gray scale value includes:
acquiring the color cast color of the edge display area according to the corresponding relation between the pre-stored color cast color and the radian of the edge display area and the theoretical gray level value range of each pixel of the edge display area;
obtaining theoretical gray-scale values of sub-pixels of the edge display area according to the theoretical gray-scale values of the pixels of the edge display area;
acquiring compensation gray-scale values of sub-pixels of the edge display area according to the compensation gray-scale values of the pixels of the edge display area;
and according to the color cast color, reducing the theoretical gray scale of the sub-pixel corresponding to the color cast color according to the compensation gray scale value of each sub-pixel of the edge display area to obtain the respective actual gray scale value of each sub-pixel of the edge display area for displaying.
2. The method according to claim 1, wherein the obtaining the actual gray-scale value of each pixel of the edge display region comprises:
acquiring a compensation gray-scale value of each pixel of the edge display area through a first preset algorithm according to the radian of the edge display area and the theoretical gray-scale value of each pixel of the edge display area;
and acquiring the actual gray scale value of each pixel of the edge display area through a second preset algorithm according to the theoretical gray scale value of each pixel of the edge display area and the compensation gray scale value of each pixel of the edge display area.
3. A display method of a display panel comprises a main display area and an edge display area, wherein the edge display area has a certain radian; the display method is characterized by comprising the following steps:
acquiring a theoretical gray scale value of each pixel in the display panel according to a picture to be displayed;
acquiring an actual gray-scale value of each pixel of the edge display area according to the radian of the edge display area and the theoretical gray-scale value of each pixel of the edge display area;
controlling each pixel of the main display area to display according to respective theoretical gray scale value, and controlling each pixel of the edge display area to display according to respective actual gray scale value;
the controlling of the display of each pixel of the edge display area according to the respective actual gray scale value includes:
acquiring the color cast color of the edge display area according to the corresponding relation between the pre-stored color cast color and the radian of the edge display area and the theoretical gray level value range of each pixel of the edge display area;
obtaining theoretical gray-scale values of sub-pixels of the edge display area according to the theoretical gray-scale values of the pixels of the edge display area;
acquiring compensation gray-scale values of sub-pixels of the edge display area according to the compensation gray-scale values of the pixels of the edge display area;
and according to the color cast color, increasing the theoretical gray scale of the sub-pixel corresponding to the color cast color according to the compensation gray scale value of each sub-pixel of the edge display area to obtain the respective actual gray scale value of each sub-pixel of the edge display area for displaying.
4. A display method of a display panel comprises a main display area and an edge display area, wherein the edge display area has a certain radian; the display method is characterized by comprising the following steps:
acquiring a theoretical gray scale value of each pixel in the display panel according to a picture to be displayed;
acquiring an actual gray-scale value of each pixel of the edge display area according to the radian of the edge display area and the theoretical gray-scale value of each pixel of the edge display area;
controlling each pixel of the main display area to display according to respective theoretical gray-scale value, and controlling each pixel of the edge display area to display according to respective actual gray-scale value;
the controlling of the display of each pixel of the edge display area according to the respective actual gray scale value includes:
obtaining theoretical gray-scale values of sub-pixels of the edge display area according to the theoretical gray-scale values of the pixels of the edge display area;
acquiring compensation gray-scale values of sub-pixels of the edge display area according to the compensation gray-scale values of the pixels of the edge display area;
and reducing the theoretical gray scale of each sub-pixel of the edge display area according to the compensation gray scale value of each sub-pixel of the edge display area so as to control each sub-pixel of the edge display area to display according to the respective actual gray scale value.
5. A display device is used for color cast compensation of a display panel, wherein the display panel comprises a main display area and an edge display area, and the edge display area has a certain radian; characterized in that the display device comprises:
the theoretical gray scale value acquisition unit is used for acquiring the theoretical gray scale value of each pixel in the display panel according to the picture to be displayed;
the actual gray-scale value acquisition unit is used for acquiring the actual gray-scale value of each pixel of the edge display area according to the radian of the edge display area and the theoretical gray-scale value of each pixel of the edge display area;
the display control unit is used for controlling each pixel of the main display area to display according to respective theoretical gray-scale value and controlling each pixel of the edge display area to display according to respective actual gray-scale value;
the display control unit includes:
the color cast color acquisition unit is used for acquiring the color cast color of the edge display area according to the corresponding relation between the pre-stored color cast color and the radian of the edge display area and the theoretical gray level value range of each pixel of the edge display area;
a sub-theoretical gray scale value obtaining unit, configured to obtain a theoretical gray scale value of each sub-pixel in the edge display area according to a theoretical gray scale value of each pixel in the edge display area;
the sub-compensation gray-scale value acquisition unit is used for acquiring the compensation gray-scale value of each sub-pixel of the edge display area according to the compensation gray-scale value of each pixel of the edge display area;
and the sub-display control unit is used for reducing the theoretical gray scale of the sub-pixel corresponding to the color cast color according to the compensation gray scale value of each sub-pixel of the edge display area according to the color cast color to obtain the actual gray scale value of each sub-pixel of the edge display area for display.
6. The display device according to claim 5, wherein the actual gray-scale value acquisition unit includes:
the compensation gray-scale value acquisition unit is used for acquiring the compensation gray-scale value of each pixel of the edge display area through a first preset algorithm according to the radian of the edge display area and the theoretical gray-scale value of each pixel of the edge display area;
and the sub-actual gray scale value acquisition unit is used for acquiring the actual gray scale value of each pixel of the edge display area through a second preset algorithm according to the theoretical gray scale value of each pixel of the edge display area and the compensation gray scale value of each pixel of the edge display area.
7. A display device is used for color cast compensation of a display panel, wherein the display panel comprises a main display area and an edge display area, and the edge display area has a certain radian; characterized in that the display device comprises:
the theoretical gray scale value acquisition unit is used for acquiring the theoretical gray scale value of each pixel in the display panel according to the picture to be displayed;
the actual gray-scale value acquisition unit is used for acquiring the actual gray-scale value of each pixel of the edge display area according to the radian of the edge display area and the theoretical gray-scale value of each pixel of the edge display area;
the display control unit is used for controlling each pixel of the main display area to display according to respective theoretical gray scale value and controlling each pixel of the edge display area to display according to respective actual gray scale value;
the display control unit includes:
the color cast color acquisition unit is used for acquiring the color cast color of the edge display area according to the corresponding relation between the pre-stored color cast color and the radian of the edge display area and the theoretical gray level value range of each pixel of the edge display area;
a sub-theoretical gray scale value obtaining unit, configured to obtain a theoretical gray scale value of each sub-pixel in the edge display area according to a theoretical gray scale value of each pixel in the edge display area;
the sub-compensation gray-scale value acquisition unit is used for acquiring the compensation gray-scale value of each sub-pixel of the edge display area according to the compensation gray-scale value of each pixel of the edge display area;
and the sub-display control unit is used for increasing the theoretical gray scale of the sub-pixel corresponding to the color cast color according to the compensation gray scale value of each sub-pixel of the edge display area according to the color cast color to obtain the actual gray scale value of each sub-pixel of the edge display area for display.
8. A display device is used for color cast compensation of a display panel, wherein the display panel comprises a main display area and an edge display area, and the edge display area has a certain radian; characterized in that the display device comprises:
the theoretical gray scale value acquisition unit is used for acquiring the theoretical gray scale value of each pixel in the display panel according to the picture to be displayed;
the actual gray-scale value acquisition unit is used for acquiring the actual gray-scale value of each pixel of the edge display area according to the radian of the edge display area and the theoretical gray-scale value of each pixel of the edge display area;
the display control unit is used for controlling each pixel of the main display area to display according to respective theoretical gray scale value and controlling each pixel of the edge display area to display according to respective actual gray scale value;
the display control unit includes:
a sub-theoretical gray scale value obtaining unit, configured to obtain a theoretical gray scale value of each sub-pixel in the edge display area according to a theoretical gray scale value of each pixel in the edge display area;
the sub-compensation gray-scale value acquisition unit is used for acquiring the compensation gray-scale value of each sub-pixel of the edge display area according to the compensation gray-scale value of each pixel of the edge display area;
and the sub-display control unit is used for reducing the theoretical gray scale of each sub-pixel of the edge display area according to the compensation gray scale value of each sub-pixel of the edge display area to obtain the actual gray scale value of each sub-pixel of the edge display area for display.
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| CN112908260B (en) * | 2021-03-30 | 2022-06-10 | 合肥维信诺科技有限公司 | Compensation method, compensation device and compensation system of display panel |
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