CN109616074B - Display method and display device - Google Patents
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- CN109616074B CN109616074B CN201910100283.XA CN201910100283A CN109616074B CN 109616074 B CN109616074 B CN 109616074B CN 201910100283 A CN201910100283 A CN 201910100283A CN 109616074 B CN109616074 B CN 109616074B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—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
- G09G3/3607—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 for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/2007—Display of intermediate tones
- G09G3/2074—Display of intermediate tones using sub-pixels
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—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 using controlled light sources
- G09G3/30—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 using controlled light sources using electroluminescent panels
- G09G3/32—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
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Abstract
The embodiment of the invention discloses a display method and a display device. The display method comprises the following steps: acquiring an image to be displayed; judging whether the brightness of the display sub-pixels in the preset area of the image to be displayed is in bright-dark alternate distribution or not; if so, controlling real sub-pixels of a preset area corresponding to the image to be displayed in the display panel to display in an illumination-dark alternating mode; and if not, controlling the real sub-pixels of the preset area corresponding to the image to be displayed in the display panel to display according to the brightness calculated by the sub-pixel rendering algorithm. The technical scheme provided by the embodiment of the invention is favorable for improving the color unbalance problem of the display picture, thereby being favorable for improving the picture display effect of the display device.
Description
Technical Field
The present invention relates to display technologies, and in particular, to a display method and a display device.
Background
In a conventional liquid crystal display device and an organic light emitting diode display device, a pixel array of a display panel includes pixel units arranged in various ways, each of the pixel units including a plurality of sub-pixels to display different color pictures by different sub-pixel light emission color combinations. With the development of display technology, the requirements of users on the display effect of the display device are higher and higher. The resolution is an important index for measuring the display effect of the display device, the resolution of the conventional display device depends on the arrangement density of the sub-pixels, and as the size of the sub-pixels is smaller and smaller, the technical difficulty is gradually increased, so that the yield of the display device with the resolution is lower, and the corresponding production cost is higher.
In order to solve the above problems, a Sub Pixel Rendering (SPR) technique is proposed, which can improve the sensory resolution by sharing Sub pixels, so that the number of display Sub pixels can be increased without changing the arrangement density of the real Sub pixels, thereby improving the sensory resolution. However, this technique causes a problem of color imbalance of the display screen when displaying a special screen, and thus the screen display effect of the display device is poor.
Disclosure of Invention
The invention provides a display method and a display device, which are used for improving the problem of color imbalance of a display picture, thereby being beneficial to improving the picture display effect of the display device.
In a first aspect, an embodiment of the present invention provides a display method, where the display method includes:
acquiring an image to be displayed;
judging whether the brightness of the display sub-pixels in the preset area of the image to be displayed is in bright-dark alternate distribution or not;
if so, controlling real sub-pixels of a preset area, which corresponds to the image to be displayed, in a display panel to display in an illumination-dark alternating mode;
and if not, controlling the real sub-pixels of the preset area, which correspondingly displays the image to be displayed, in the display panel to display according to the brightness calculated by the sub-pixel rendering algorithm.
In a second aspect, an embodiment of the present invention further provides a display device, where the display device includes:
the image receiving module is used for acquiring an image to be displayed;
the data processing module is used for judging whether the brightness of the display sub-pixels in the preset area of the image to be displayed is in bright-dark alternate distribution or not, and if so, controlling the real sub-pixels in the preset area of the display panel, which correspondingly displays the image to be displayed, to display in a bright-dark alternate mode; and if not, controlling the real sub-pixels of the preset area, which correspondingly displays the image to be displayed, in the display panel to display according to the brightness calculated by the sub-pixel rendering algorithm.
The display method provided by the embodiment of the invention judges whether the brightness of the display sub-pixels in the preset area of the image to be displayed is in bright-dark distribution; if so, controlling real sub-pixels of a preset area corresponding to the image to be displayed in the display panel to display in an illumination-dark alternating mode; if not, controlling the real sub-pixels of the preset area corresponding to the image to be displayed in the display panel to display according to the brightness calculated by the sub-pixel rendering algorithm, and directly displaying the real sub-pixels in an illumination-dark alternating mode when the image to be displayed corresponding to the preset area is an image with alternately distributed bright and dark, and displaying the image to be displayed in other areas except the image with alternately distributed bright and dark by adopting the brightness calculated by the sub-pixel rendering algorithm, so that the problem of color imbalance caused by the fact that the image with alternately distributed bright and dark corresponding to the preset area is displayed by adopting the sub-pixel rendering algorithm can be solved, the sensory resolution of other areas is not lost, and the whole display effect of the display device is favorably improved.
Drawings
Fig. 1 is a schematic flow chart of a display method according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart of another display method according to an embodiment of the present invention;
fig. 3 is a schematic diagram of an image to be displayed in the display method according to the embodiment of the present invention;
fig. 4 is a schematic diagram of another image to be displayed in the display method according to the embodiment of the present invention;
FIG. 5 is a schematic diagram of an arrangement of real sub-pixels according to an embodiment of the present invention;
FIG. 6 is a schematic diagram illustrating the display effect of executing S250 when the determination result of S230 in FIG. 2 is YES, based on the real sub-pixel arrangement in FIG. 5;
FIG. 7 is a schematic diagram illustrating the display effect of executing S240 when the determination result of S230 in FIG. 2 is YES based on the real sub-pixel arrangement in FIG. 5;
FIG. 8 is a schematic diagram of another real sub-pixel arrangement according to an embodiment of the present invention;
fig. 9 is a schematic diagram of the display effect of executing S240 when the determination result of S230 in fig. 2 is yes, based on the real sub-pixel arrangement in fig. 8;
fig. 10 is a schematic structural diagram of a display device according to an embodiment of the present invention;
fig. 11 is a schematic structural diagram of another display device according to an embodiment of the invention;
fig. 12 is a schematic structural diagram of another display device according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Fig. 1 is a schematic flow chart of a display method according to an embodiment of the present invention. Referring to fig. 1, the display method includes:
and S110, acquiring an image to be displayed.
The image to be displayed is an image required to be displayed by the display device. The image data of the image to be displayed comprises the display sub-pixel color of the image to be displayed and the corresponding gray scale value.
And S120, judging whether the brightness of the display sub-pixels in the preset area of the image to be displayed is in bright-dark alternate distribution or not. If yes, go to S130, otherwise go to S140.
If the brightness of the display sub-pixels in the preset area is alternately distributed, the frame of the image to be displayed corresponding to the preset area may be a dot inversion frame (described in detail below with reference to fig. 3) or a column inversion frame (described in detail below with reference to fig. 4). For these two types of pictures, if the luminance (also understood as a gray level value) calculated by the sub-pixel rendering algorithm is used for displaying, since real sub-pixels with different light-emitting colors are commonly used for displaying one display sub-pixel, the color ratio of the display picture is unbalanced, and the color imbalance of the display picture is generated. To solve this problem, the embodiment of the present invention processes the corresponding relationship between the display sub-pixels and the real sub-pixels in the preset regions corresponding to the two types of pictures, i.e. executes S130, so as to improve the color imbalance problem.
If the display sub-pixels in the preset area do not display the two types of pictures, the problem of color imbalance does not exist generally, and no special processing is needed, i.e., S140 is executed, so as to ensure that the final display picture corresponding to the image to be displayed has a higher overall sensory resolution.
It should be noted that the preset region may be a circular region, a rectangular region, or other irregular boundary region, and the preset region may be a local region of the display region in the display device, or may be the entire display region in the display device, and may be set according to the actual requirement of the display method.
And S130, controlling real sub-pixels, corresponding to a preset area for displaying the image to be displayed, in the display panel to display in an alternate illumination and darkness mode.
The real sub-pixels are actually present in a pixel array of the display panel, and the array substrate comprises a plurality of real sub-pixels for displaying different colors and different brightnesses to display an image to be displayed.
In the step, the real sub-pixels are arranged to display in an illumination and darkness alternation mode, so that color balance in a display picture is facilitated, and the problem of color imbalance is solved. Meanwhile, for the flicker test of the display device, the influence of the sub-pixel rendering algorithm on the flicker test can be avoided, so that the normal OTP operation can be supported, and the display performance stability of the display panel and the display device is facilitated.
It should be noted that the above-mentioned "OTP operation" may be understood as an operation of calibrating the potential value of the common electrode in the liquid crystal display panel, i.e., a calibration process of the potential value of the common electrode. After the calibration process, when a positive voltage and a negative voltage are alternately applied to the pixel electrode of the real sub-pixel, the brightness difference of the real sub-pixel is within an allowable range.
And S140, controlling real sub-pixels, corresponding to a preset area for displaying the image to be displayed, in the display panel to display the real sub-pixels according to the brightness calculated by the sub-pixel rendering algorithm.
If the result of the determination in S120 is negative, the color imbalance problem does not exist, and the step is used to perform display, so that a display sub-pixel can be displayed by using a plurality of real sub-pixels, and one real sub-pixel is shared to display a plurality of display sub-pixels, thereby being beneficial to ensuring that the sub-pixel density of the display sub-pixel is higher, and being beneficial to ensuring that the display frame has higher sensory resolution.
Optionally, fig. 2 is a schematic flow chart of another display method according to an embodiment of the present invention. Referring to fig. 2, the display method includes:
and S210, acquiring an image to be displayed.
S220, when the gray scale value of the display sub-pixel is larger than a first gray scale threshold value Gb, the display brightness of the display sub-pixel is defined to be bright; and when the gray-scale value of the display sub-pixel is smaller than the second gray-scale threshold value Gd, the display brightness of the display sub-pixel is dark.
The first gray scale threshold value Gb and the second gray scale threshold value Gd may be pre-stored in a parameter storage module, and the step defines brightness of the display sub-pixel according to a relative magnitude relationship between the gray scale value of the display sub-pixel, the first gray scale threshold value Gb, and the second gray scale threshold value Gd, so as to prepare for subsequently determining a brightness distribution condition of the display sub-pixel in the preset region.
Next, the relative sizes and ranges of the first grayscale threshold Gb and the second grayscale threshold Gd are exemplarily described.
Optionally, a difference between the first gray scale threshold Gb and the second gray scale threshold Gd is greater than a preset difference.
By the arrangement, subsequent processing can be performed on the picture with large brightness difference.
Wherein the preset difference value corresponds to the brightness difference degree, and the larger the preset difference value is, the larger the brightness difference is.
Optionally, the first gray scale threshold Gb is greater than or equal to 120; the second gray scale threshold Gd is less than or equal to 30; the preset difference (Gb-Gd) is more than or equal to 90.
With such an arrangement, on the one hand, the values of the first gray scale threshold Gb and the second gray scale threshold Gd can be flexibly set within the above numerical range, thereby being beneficial to meeting different display requirements or test requirements. On the other hand, compared with the design only aiming at the brightest (255) and darkest (0) display brightness, the arrangement of the numerical value range is beneficial to improving the problem of color imbalance of the display picture in a large brightness range, thereby being beneficial to improving the display effect.
Optionally, the first grayscale threshold Gb is equal to the second grayscale threshold Gd.
So set up, can define the gray scale value that reveals the sub-pixel is greater than a gray scale threshold value, should reveal the sub-pixel and reveal the luminance is bright; otherwise, the display sub-pixel has dark display brightness. Or, defining that the gray scale value of the display sub-pixel is smaller than a gray scale threshold value, and then the display brightness of the display sub-pixel is dark; otherwise, the display brightness of the display sub-pixel is bright. Therefore, the gray-scale value of the display sub-pixel is only compared with a gray-scale threshold value, and the display method is facilitated to be simplified.
It should be noted that the specific value of the gray level threshold can be set according to the actual requirement of the display method, which is not limited in the embodiment of the present invention.
And S230, judging whether the brightness of the display sub-pixels in the preset area of the image to be displayed is in bright-dark alternate distribution or not. If yes, go to S240, otherwise go to S250.
Optionally, the step may include: judging whether display sub-pixels of ith to jth rows and pth to qth columns of an image to be displayed are alternately distributed in bright and dark; wherein i, j, p and q are positive integers, j is more than i and is not less than 1, and q is more than p and is not less than 1.
With the arrangement, the region needing to be subjected to light and shade (namely, brightness and shade) judgment is set according to the actual requirement of the display method, so that the region needing to be subjected to light and shade judgment is set according to the display requirement of the display device, and the image display effect of the display device is improved.
Exemplarily, fig. 3 is a schematic diagram of an image to be displayed in the display method provided by the embodiment of the present invention, and fig. 4 is a schematic diagram of another image to be displayed in the display method provided by the embodiment of the present invention. Wherein "D00" represents a display sub-pixel array of an image to be displayed, "D10" represents a display sub-pixel, "0" represents that the display luminance of the display sub-pixel is dark, "1" represents that the display luminance of the display sub-pixel is bright, and fig. 3 and 4 each exemplarily show four regions in which the display luminance of the display sub-pixel is alternately distributed bright and dark, which are respectively shown by a first display region Q11, a second display region Q12, a third display region Q13 and a fourth display region Q14. The first direction X is a row direction, and the second direction Y is a column direction. The four regions in fig. 3 for which the light and dark determination is required are: the first region Q11 corresponds to the display sub-pixel D10 located in the 1 st to 5 th rows and the 1 st to 6 th columns, the second region Q12 corresponds to the display sub-pixel D10 located in the 8 th to 10 th rows and the 1 st to 3 rd columns, the third region Q13 corresponds to the display sub-pixel D10 located in the 8 th to 10 th rows and the 5 th to 6 th columns, and the fourth region 114 corresponds to the display sub-pixel D10 located in the 13 th to 14 th rows and the 3 rd to 5 th columns. Among the four regions that need to be determined in fig. 4, the difference from fig. 3 is that the fourth region Q14 corresponds to the display sub-pixel D10 located in the 12 th to 14 th rows and the 1 st to 6 th columns, and the row and column distribution of the other three regions is the same and will not be repeated.
In conjunction with fig. 3 and 4, this step may include: whether the display sub-pixels D10 in the preset area are alternately distributed in bright and dark along the first direction X and/or whether the display sub-pixels D10 in the preset area are alternately distributed in bright and dark along the second direction Y are determined.
Illustratively, with continued reference to fig. 3, the bright-dark distribution of the display luminance of the display sub-pixel D10 in the four preset areas in fig. 3 each shows the bright-dark distribution manner of the display sub-pixel D10 of the "dot inversion picture", that is, the display luminance of the display sub-pixel D10 is alternately distributed by 1 and 0 along the first direction X; in the second direction Y, the display luminance of the display sub-pixel D10 is alternately distributed between 1 and 0.
Illustratively, with continued reference to FIG. 4, the row direction is taken as the first direction X and the column direction is taken as the second direction Y. Of the four preset regions in fig. 4, the bright-dark distribution of the display luminance of the display sub-pixel D10 in the first region Q11, the second region Q12 and the third region Q13 all shows the bright-dark distribution of the display sub-pixel D10 of the "column inversion picture", that is, along the second direction Y, the display luminance of the display sub-pixel D10 of the same column is bright (1), or the display luminance of the display sub-pixel D10 of the same column is dark (0); in the first direction X, the display luminances of the display subpixels D10 in the same row are alternately distributed as 1 and 0.
Illustratively, with continued reference to FIG. 4, the first direction X is a column direction and the second direction Y is a row direction. In the four preset regions in fig. 4, the bright-dark distribution of the display luminance of the display sub-pixel D10 in the fourth region Q14 all shows the bright-dark distribution manner of the display sub-pixel D10 of the "column inversion picture", that is, along the first direction X, the display luminance of the display sub-pixel D10 of the same column is bright (1), or the display luminance of the display sub-pixel D10 of the same column is dark (0); in the second direction Y, the display luminances of the display sub-pixels D10 in the same row are alternately distributed as 1 and 0.
It should be noted that fig. 3 and fig. 4 only exemplarily illustrate several preset regions in which shading determination is required, taking the display sub-pixel array D00 including 14 rows and 6 columns of display sub-pixels D10 as an example, but do not constitute a limitation to the display method provided by the embodiment of the present invention. In other embodiments, the area range that needs to be subjected to the brightness determination may also be set according to the actual requirement of the display method, that is, the preset area may be set according to the actual requirement of the display method, which is not limited in the embodiment of the present invention.
And S240, controlling real sub-pixels, corresponding to a preset area for displaying the image to be displayed, in the display panel to display in an alternate illumination and darkness mode.
Optionally, the step may include obtaining a display gray scale value corresponding to each real sub-pixel according to the to-be-displayed brightness of each display sub-pixel in the preset region, the aperture ratio of each real sub-pixel, and the Gamma table; and each sub-pixel carries out bright-dark alternate display according to the display gray-scale value.
The brightness to be displayed of each display sub-pixel is determined by the image to be displayed, the aperture ratio of each real sub-pixel can be set according to the aperture ratio of the real sub-pixel set in the sub-pixel rendering algorithm main body, and the Gamma table is a corresponding relation table of the display gray-scale value of the real sub-pixel and the corresponding display brightness.
In the step, a real sub-pixel correspondingly displays a display sub-pixel, and the display gray-scale value of the real sub-pixel corresponding to the brightness to be displayed of each display sub-pixel can be obtained by referring to the aperture ratio and the Gamma table of each real sub-pixel.
Optionally, according to the Gamma table, when the to-be-displayed luminances of the display sub-pixels are the same, the larger the opening of the real sub-pixel is, the smaller the display gray scale value of the real sub-pixel is.
It can also be understood that when the opening sizes of the real sub-pixels are the same, the larger the display gray scale value is, the larger the corresponding display brightness is.
It should be noted that, in the embodiment of the present invention, the Gamma table is taken as an example to calculate the gray scale value, but the display method provided in the embodiment of the present invention is not limited. In other embodiments, the display gray-scale value of the real sub-pixel may be calculated from the to-be-displayed luminance value of the display sub-pixel in other manners known to those skilled in the art, which is not limited by the embodiment of the present invention.
And S250, controlling the real sub-pixels of the preset area corresponding to the image to be displayed in the display panel to display according to the brightness calculated by the sub-pixel rendering algorithm.
In the following, the display method provided by the embodiment of the present invention is exemplarily described with reference to the arrangement of the real sub-pixels in the display panel.
Optionally, fig. 5 is a schematic diagram of an arrangement manner of real sub-pixels according to an embodiment of the present invention. Referring to fig. 5, a pixel array P00 of the display panel includes a plurality of real pixel cells P10 arranged in an array, a real pixel cell P10 includes N (exemplarily, each real pixel cell P10 illustrated in fig. 5 includes 4 real sub-pixels P11) real sub-pixels P11 having different light emission colors arranged in a first direction X, and real pixel cells P10 adjacent in a second direction Y are staggered by a preset distance; wherein N is a positive integer and N is not less than 3, and the first direction X intersects the second direction Y. The display sub-pixel is displayed using at least one real sub-pixel P11, while one real sub-pixel P11 is shared by a plurality of display sub-pixels.
Therefore, the image can be displayed based on the sub-pixel rendering algorithm, so that the sensory resolution of the displayed image is improved, and the display effect is improved.
The display effect comparing the prior art and the present embodiment based on the display method shown in fig. 1 or fig. 2 is as follows:
for example, fig. 6 is a schematic diagram of the display effect performed in S250 in fig. 2 when the determination result in S230 is yes based on the real sub-pixel arrangement in fig. 5, that is, a display effect map P01 in the prior art; fig. 7 is a schematic diagram of the display effect performed in S240 in fig. 2 when the determination result in S230 is yes based on the real sub-pixel arrangement in fig. 5, that is, the display effect map P02 in this embodiment. Fig. 6 and 7 show display gray-scale values of real subpixels corresponding to the subpixel rendering algorithm and the unutilized subpixel rendering algorithm, respectively, when dot inversion display is performed.
Illustratively, the arrangement of the display gray-scale values of each real sub-pixel (in the case of the first two rows) in fig. 6 is:
105,0,105,0,0,77,105,0,105,77,0,0；
105,0,0,77,105,0,77,105,0,0,105,0。
illustratively, the arrangement of the display gray-scale values of each real sub-pixel (in the case of the first two rows) in fig. 7 is:
127,0,127,0,127,0,127,0,127,0,127,0；
0,127,0,127,0,127,0,127,0,127,0,127。
comparing the display gray-scale values of the real sub-pixels in fig. 6 and fig. 7, it can be seen that, in the prior art (refer to fig. 6), the real sub-pixels are commonly used to display the display sub-pixels, which results in the imbalance of the color ratio of the display screen, and thus the display effect is poor. The display method provided by the embodiment of the invention can balance the color proportion of the display picture, thereby improving the problem of color unbalance of the display picture.
It should be noted that fig. 6 only exemplarily shows that the grayscale values corresponding to a certain screen include 0, 77, and 105, and fig. 7 only exemplarily shows that the grayscale values corresponding to the certain screen include 0 and 127, but the display method provided by the embodiment of the present invention is not limited. In other embodiments, the display gray-scale value of each real sub-pixel may also be set according to the actual requirement of the display method, which is not limited in the embodiment of the present invention.
Alternatively, with continued reference to fig. 5, N is 4, and the emission colors of the 4 real sub-pixels P11 in the real pixel unit P10 are red, green, blue, and white, respectively.
So set up, be convenient for improve display brightness.
Exemplarily, a liquid crystal display device is taken as an example. A liquid crystal display device generally includes a liquid crystal display panel and a backlight source that provides backlight for the liquid crystal display panel. Illustratively, the backlight is a mini LED. The mini LED is used as a backlight source of a liquid crystal display panel, and High-Dynamic Range (HDR) image display can be realized by combining a local dimming algorithm. Compared with the traditional liquid crystal display panel backlight technology, due to the fact that the number of mini LEDs is large, the number of local backlight partitions is large, the number of control circuits is large, power consumption is high, and the cruising ability and the service life of the liquid crystal display device are affected. The real sub-pixel with the white light emitting color is arranged on the basis of the three primary colors consisting of red, green and blue, so that the light transmittance of the position corresponding to the real sub-pixel with the white light emitting color can be improved, the requirement on the brightness of the backlight mini LED is lower, namely the driving current of the mini LED can be reduced, the power consumption is reduced, the cruising ability of the liquid crystal display device is improved, and the service life of the liquid crystal display device is prolonged.
It should be noted that the light emitting color of the real sub-pixel P11 in the real pixel unit P10 may also be other colors known to those skilled in the art, and may be set according to the display requirement of the display device, which is not limited in the embodiment of the present invention.
Optionally, fig. 8 is a schematic diagram of another arrangement manner of real sub-pixels according to an embodiment of the present invention. Referring to fig. 8, a pixel array P00 of the display panel includes a plurality of real pixel units P10 arranged in an array, a real pixel unit P10 includes two first-color sub-pixels P111, two second-color sub-pixels P112, one third-color sub-pixel P113, and one fourth-color sub-pixel P114, and six sub-pixels of the pixel units are arranged in a 2 × 3 array; the two first-color sub-pixels P111 are arranged in the second direction Y to constitute a first arrangement group P21; two second-color sub-pixels P112 arranged in the second direction Y constitute a second arranged group P22; one third-color sub-pixel P113 and one fourth-color sub-pixel P114 are arranged in the second direction Y to constitute a third arrangement group P23; the first arranged group P21, the second arranged group P22, and the third arranged group P23 are arranged in the first direction X; wherein the first direction X intersects the second direction Y. The display sub-pixel performs display using at least one of the first color sub-pixel P111, the second color sub-pixel P112, the third color sub-pixel P113, and the fourth color sub-pixel P114. Meanwhile, at least one of the first, second, third and fourth color sub-pixels P111, P112, P113 and P114 is shared to display different display sub-pixels.
Therefore, the image can be displayed based on the sub-pixel rendering algorithm, so that the sensory resolution of the displayed image is improved, and the display effect is improved.
The display effect of the present embodiment is exemplarily shown based on the display method shown in fig. 1 or fig. 2 described above.
Fig. 9 is a schematic diagram of the display effect performed in S240 in fig. 2 when the determination result in S230 is yes based on the arrangement of the real sub-pixels in fig. 8, and exemplarily shows the display gray-scale values of the real sub-pixels when the dot inversion screen is displayed, which corresponds to another display effect diagram P02 of the present embodiment. Taking the real sub-pixels in the first two rows in fig. 9 as an example, the arrangement of the gray-scale values is:
127,0,93,0,127,0,127,0,93；
0,127,0,127,0,93,0,127,0。
the color proportion of the display picture is balanced, so that the problem of unbalanced color of the display picture can be improved.
In addition, with reference to fig. 8 and 9, in each real sub-pixel whose display luminance is bright, the display luminances of the first color sub-pixel P21, the second color sub-pixel P22, and the third color sub-pixel P23 are the same. The display gray-scale values of the third color sub-pixel P23 and the other two real sub-pixels (i.e., the first color sub-pixel P21 and the second eye color sub-pixel P22) are different due to the difference in the aperture sizes of the third color sub-pixel P23 and the other two real sub-pixels (i.e., the first color sub-pixel P21 and the second eye color sub-pixel P22).
In addition, fig. 9 only shows, by way of example, that the grayscale values corresponding to a certain screen include 0, 93, and 127, but the display method provided by the embodiment of the present invention is not limited. In other embodiments, the display gray-scale value of each real sub-pixel may also be set according to the actual requirement of the display method, which is not limited in the embodiment of the present invention.
Optionally, with reference to fig. 8, the light emitting color of the first color sub-pixel P111 is red, the light emitting color of the second color sub-pixel P112 is green, the light emitting color of the third color sub-pixel P113 is blue, and the light emitting color of the fourth color sub-pixel P114 is white.
So configured, the third color sub-pixel P113 and the fourth color sub-pixel P114 can be shared to facilitate implementing a sub-pixel rendering algorithm, thereby facilitating ensuring an increased photosensitive resolution.
For example, taking a liquid crystal display device using a mini LED as a backlight source as an example, the power consumption is also reduced, and the endurance and the service life of the liquid crystal display device are improved.
It should be noted that the light emitting color of the fourth color sub-pixel P114 may also be other colors known to those skilled in the art, and the embodiment of the invention does not limit this.
In addition, it should be noted that fig. 5-7 only exemplarily show that the pixel array includes real pixel units arranged in an array of 6 rows and 3 columns, and each pixel unit includes four real sub-pixels; fig. 8 to 9 only exemplarily show that the pixel array includes real pixel units arranged in an array of 3 rows and 3 columns, and each real pixel unit includes real sub-pixels arranged in an array of 2 rows and 3 columns, but do not constitute a limitation to the pixel array in the display method provided by the embodiment of the present invention. In other embodiments, the number and arrangement manner of the real pixel units in the pixel array and the number and arrangement manner of the real sub-pixels in the real pixel units may also be set according to the actual requirement of the display method, which is not limited in the embodiment of the present invention.
Based on the same inventive concept, embodiments of the present invention further provide a display apparatus, which can display a picture by applying the display method provided in the foregoing embodiments, or understand that the display apparatus can be used to execute the display method provided in the foregoing embodiments, so that the display apparatus also has the beneficial effects of the display method provided in the foregoing embodiments, and the same points are not described in detail below, and can be understood by referring to the explanation of the display method above.
For example, fig. 10 is a schematic structural diagram of a display device according to an embodiment of the present invention. Referring to fig. 10, the display device 40 includes: an image receiving module 410, configured to obtain an image to be displayed; the data processing module 420 is configured to determine whether the brightness of the display sub-pixels in the preset area of the image to be displayed is alternately distributed, and if so, control the real sub-pixels in the preset area of the display panel, which correspond to the image to be displayed, to display in an alternately illuminated and dark manner; and if not, controlling the real sub-pixels of the preset area corresponding to the image to be displayed in the display panel to display according to the brightness calculated by the sub-pixel rendering algorithm.
Therefore, the color unbalance problem of the display picture is favorably improved, and the practical effect of the display device is favorably improved.
Optionally, fig. 11 is a schematic structural diagram of another display device provided in an embodiment of the present invention. Referring to fig. 11, the display device 40 further includes a light and dark definition module 430, where the light and dark definition module 430 is configured to define the display luminance of the display sub-pixel to be bright when the gray scale value of the display sub-pixel is greater than the first gray scale threshold Gb; and the gray scale value is used for defining that the display brightness of the display sub-pixel is dark when the gray scale value of the display sub-pixel is smaller than a second gray scale threshold value Gd.
Optionally, fig. 12 is a schematic structural diagram of another display device according to an embodiment of the present invention. Referring to fig. 12, the data processing module 420 includes a light and dark determination submodule 421, a first data output submodule 422, and a second data output submodule 423; the brightness determination submodule 421 is configured to determine whether display sub-pixels in an ith row to a jth row and a pth column to a qth column of the image to be displayed are alternately distributed with brightness; if yes, a first instruction is sent to the first data output submodule 422, and if not, a second instruction is sent to the second data output submodule 423; wherein i, j, p and q are positive integers, j is more than i and is not less than 1, and q is more than p and is not less than 1; the first data output sub-module 422 is configured to, under control of the first instruction, obtain a display gray-scale value corresponding to each real sub-pixel according to the to-be-displayed luminance of each display sub-pixel in the preset region, the aperture ratio of each real sub-pixel, and the Gamma table, and output the display gray-scale value to each real sub-pixel; the second data output sub-module 423 is configured to calculate, according to the sub-pixel rendering algorithm, a display gray scale value corresponding to each real sub-pixel under the control of the second instruction, and output the display gray scale value to each real sub-pixel.
It should be noted that, in the structural schematic diagrams of the display devices shown in fig. 10 to 12, the modules are functionally divided by way of example only, and the signal transmission relationship between the modules is indicated by using connection lines. In an actual product, spatial positions of the modules may overlap, and signal transmission between the modules may be wired transmission or wireless transmission, which is not limited in the embodiments of the present invention.
For example, the display device 40 may be a mobile phone, a computer, a smart wearable device (e.g., a smart watch), and other types of display devices known to those skilled in the art, and the present invention is not limited thereto.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious modifications, rearrangements, combinations and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (16)
1. A display method, comprising:
acquiring an image to be displayed;
judging whether the brightness of the display sub-pixels in the preset area of the image to be displayed is in bright-dark alternate distribution or not;
if so, controlling real sub-pixels of a preset area, which corresponds to the image to be displayed, in a display panel to display in an illumination-dark alternating mode; when the brightness of the display sub-pixels in the preset area of the image to be displayed is alternately distributed in a bright mode and a dark mode, the picture of the image to be displayed corresponding to the preset area comprises a dot reverse picture or a column reverse picture;
and if not, controlling the real sub-pixels of the preset area, which correspondingly displays the image to be displayed, in the display panel to display according to the brightness calculated by the sub-pixel rendering algorithm.
2. The method according to claim 1, wherein before determining whether the brightness of the display sub-pixels in the preset area of the image to be displayed is alternately distributed between bright and dark, the method further comprises:
when the gray scale value of the display sub-pixel is larger than a first gray scale threshold value Gb, the display brightness of the display sub-pixel is defined to be bright; and when the gray-scale value of the display sub-pixel is smaller than a second gray-scale threshold value Gd, the display brightness of the display sub-pixel is dark.
3. The display method according to claim 2, wherein:
the difference between the first gray scale threshold Gb and the second gray scale threshold Gd is greater than a preset difference.
4. The display method according to claim 3, wherein:
the first gray scale threshold Gb is more than or equal to 120;
the second gray scale threshold value Gd is less than or equal to 30;
the preset difference (Gb-Gd) is more than or equal to 90.
5. The display method according to claim 2, wherein the first grayscale threshold Gb is equal to the second grayscale threshold Gd.
6. The method according to claim 1, wherein determining whether the brightness of the display sub-pixels in the preset area of the image to be displayed is alternately bright and dark comprises:
judging whether the display sub-pixels of the ith to jth rows and the pth to qth columns of the image to be displayed are alternately distributed in bright and dark;
wherein i, j, p and q are positive integers, j is more than i and is not less than 1, and q is more than p and is not less than 1.
7. The display method according to claim 1, wherein the image to be displayed comprises a plurality of display sub-pixels arranged in an array along a first direction and a second direction, the first direction intersecting the second direction;
judging whether the brightness of the display sub-pixels in the preset area of the image to be displayed is in bright-dark alternate distribution or not comprises the following steps: and judging whether the display sub-pixels in the preset area are alternately distributed in a bright and dark mode along the first direction or not, and/or judging whether the display sub-pixels in the preset area are alternately distributed in a bright and dark mode along the second direction or not.
8. The method according to claim 1, wherein the controlling the real sub-pixels of the display panel corresponding to the preset area displaying the image to be displayed to display in an alternating manner of illumination and darkness comprises:
acquiring a display gray-scale value corresponding to each real sub-pixel according to the brightness to be displayed of each display sub-pixel in the preset area, the opening ratio of each real sub-pixel and a Gamma table;
and each sub-pixel carries out bright-dark alternate display according to the display gray-scale value.
9. The display method according to claim 8, wherein: according to the Gamma table, when the brightness to be displayed of the display sub-pixels is the same, the larger the opening of the real sub-pixel is, the smaller the display gray scale value of the real sub-pixel is.
10. The display method according to claim 1, wherein the pixel array of the display panel includes a plurality of real pixel units arranged in an array, the real pixel units include N real sub-pixels with different emission colors arranged along a first direction, and the real pixel units adjacent to each other along a second direction are staggered by a preset distance; wherein N is a positive integer and is not less than 3, and the first direction and the second direction are crossed; the display sub-pixel displays by using at least one real sub-pixel.
11. The display method according to claim 10, wherein N is 4, and the emission colors of the 4 real sub-pixels in the real pixel unit are red, green, blue, and white, respectively.
12. The display method according to claim 1, wherein the pixel array of the display panel comprises a plurality of real pixel units arranged in an array, the real pixel units comprise two first color sub-pixels, two second color sub-pixels, one third color sub-pixel and one fourth color sub-pixel, and six sub-pixels in the pixel units are arranged in a 2 x 3 array; the two first color sub-pixels are arranged along a second direction to form a first arrangement group; the two second color sub-pixels are arranged along the second direction to form a second arrangement group; the one third color sub-pixel and the one fourth color sub-pixel are arranged along the second direction to form a third arrangement group; the first arranged group, the second arranged group and the third arranged group are arranged along a first direction; wherein the first direction intersects the second direction; the display sub-pixel performs display by using at least one of the first color sub-pixel, the second color sub-pixel, the third color sub-pixel, and the fourth color sub-pixel.
13. The method according to claim 12, wherein the first color sub-pixel emits light of red, the second color sub-pixel emits light of green, the third color sub-pixel emits light of blue, and the fourth color sub-pixel emits light of white.
14. A display device, comprising:
the image receiving module is used for acquiring an image to be displayed;
the data processing module is used for judging whether the brightness of the display sub-pixels in the preset area of the image to be displayed is in bright-dark alternate distribution or not, and if so, controlling the real sub-pixels in the preset area of the display panel, which correspondingly displays the image to be displayed, to display in a bright-dark alternate mode; if not, controlling the real sub-pixels of the preset area, which correspondingly displays the image to be displayed, in the display panel to display according to the brightness calculated by the sub-pixel rendering algorithm;
when the brightness of the display sub-pixels in the preset area of the image to be displayed is alternately distributed in a bright mode and a dark mode, the picture of the image to be displayed corresponding to the preset area comprises a dot reverse picture or a column reverse picture.
15. The display device according to claim 14, further comprising:
the bright-dark definition module is used for defining that the display brightness of the display sub-pixel is bright when the gray scale value of the display sub-pixel is greater than a first gray scale threshold value Gb; and the display brightness of the display sub-pixel is dark when the gray-scale value of the display sub-pixel is smaller than a second gray-scale threshold value Gd.
16. The display device according to claim 14, wherein the data processing module includes a light and dark determination sub-module, a first data output sub-module, and a second data output sub-module;
the brightness determination submodule is used for determining whether the display sub-pixels of the ith to jth rows and the pth to qth columns of the image to be displayed are alternately distributed in brightness; if yes, sending a first instruction to the first data output submodule, and if not, sending a second instruction to the second data output submodule; wherein i, j, p and q are positive integers, j is more than i and is not less than 1, and q is more than p and is not less than 1;
the first data output sub-module is used for acquiring a display gray-scale value corresponding to each real sub-pixel according to the to-be-displayed brightness of each display sub-pixel in the preset area, the aperture ratio of each real sub-pixel and a Gamma table under the control of the first instruction and outputting the display gray-scale value to each real sub-pixel;
and the second data output sub-module is used for calculating a display gray-scale value corresponding to each real sub-pixel according to a sub-pixel rendering algorithm under the control of the second instruction and outputting the display gray-scale value to each real sub-pixel.
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