Method and apparatus for optimizing color cast of WRGB panel and readable storage medium

[0030] Here, an exemplary embodiment will be described in detail, and examples thereof are shown in the accompanying drawings. When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementation manners described in the following exemplary embodiments do not represent all implementation manners consistent with the present invention. On the contrary, they are only examples of methods and devices consistent with some aspects of the present invention as detailed in the appended claims.

[0031] figure 1 It is a flow chart showing a method for optimizing the color cast of a WRGB panel according to an exemplary embodiment. Such as figure 1 As shown, the method for optimizing the color cast of the WRGB panel may include the following steps.

[0032] In step 110, the RGB component information of the video signal for color image display on the WRGB panel and the color matching ratio of the three colors of R, G, and B of the WRGB panel are acquired.

[0033] Among them, the WRGB panel uses R (red) sub-pixels, G (green) sub-pixels and B (blue) sub-pixels to display various colors according to the RGB color mode, and adds W (white) sub-pixels to improve The transmittance of the panel.

[0034] The video signal is a signal input to the WRGB panel for image display, and the video signal input to the WRGB panel is decoded to obtain RGB component information. The RGB component information is the ratio information of the three sub-pixels of RGB in the video signal received by the WRGB panel when the video signal displays an image on the WRGB panel. WRGB panel for color image display is the process of receiving the video signal input to the WRGB panel, and obtaining RGB component information according to the video signal, and displaying the color image according to the RGB component information. When the WRGB panel performs color image display, the WRGB panel displays the corresponding color image in the WRGB panel according to the RGB component information.

[0035] The color matching ratio of the three colors of R, G, and B of the WRGB panel is the proportion of the three sub-pixels of R/G/B in the WRGB panel. The WRGB panel adds W sub-pixels, which makes the proportion of R/G/B smaller. Therefore, the color coordinate Y value of the image displayed by the WRGB panel will be smaller than that of the RGB panel. Therefore, the WRGB panel increases or decreases the G sub-pixel to keep the X value of the color coordinate unchanged while increasing or decreasing the Y value of the color coordinate. Therefore, in the color matching ratio of the R, G, and B colors of the WRGB panel, the proportion of the G sub-pixel is higher than that of the R sub-pixel and the B sub-pixel.

[0036] In step 130, the R component and the B component in the RGB component information are enhanced according to the color matching ratio to obtain the enhanced R enhanced component and the B enhanced component.

[0037] Among them, when the WRGB panel performs color image display, the RGB component information will be changed in the same proportion according to the color matching ratio of the R, G, and B colors of the WRGB panel. Therefore, the color image display based on the RGB component information will be different from the true RGB color ratio of the color image because of the WRGB color ratio.

[0038] In a specific implementation of an exemplary embodiment, the color matching ratio of the three colors R, G, and B of the WRGB panel is R:G:B=0.9:1.2:0.9, the R component of the RGB component information, the G component and the B component are R 0 , G 0 , B 0 , The actual RGB color ratio of the color image displayed in WRGB is 0.9R 0 ,1.2G 0 And 0.9B 0.

[0039] Since the weakening of the G sub-pixel will cause the display brightness of the WRGB panel to decrease, the R component and the B component in the RGB component information are enhanced to obtain the R enhancement component that offsets the color cast of the WRGB panel while ensuring the display brightness of the WRGB panel. And B enhancement component.

[0040] The enhancement of the R component and the B component in the RGB component information is not limited to the R component and the B component. In other embodiments, the enhancement or reduction processing of the G component in the RGB component information is also included.

[0041] In step 150, the obtained R-enhanced component, B-enhanced component, and G component are converted to obtain a WRGB signal, and the WRGB signal is output.

[0042] The R enhancement component, the B enhancement component and the G component are changed in the same proportion according to the color matching ratios of the three colors of R, G, and B of the WRGB panel, and then the WRGB signal is obtained to make the R sub-pixel, G sub-pixel and B The sub-pixels perform corresponding display. Since the WRGB signal can offset the color cast of the WRGB panel, the ratio of R, G, and B of the WRGB signal is consistent with the true RGB color matching ratio of the color image. By outputting the WRGB signal, the specific gravity of the G sub-pixel in the WRGB panel is higher than the color matching ratio of the R sub-pixel and the B sub-pixel in the WRGB panel, and the color image display that offsets the color cast of the WRGB panel is realized. At the same time, because the R component and the B component are enhanced, the display brightness of the color image display performed by the WRGB panel based on the RGB component information is enhanced.

[0043] This embodiment realizes the process of eliminating color cast on the color image displayed by WRGB, and by enhancing the R and B components, the brightness of the color image displayed by WRGB is enhanced.

[0044] figure 2 It is a flowchart showing a method for optimizing the color cast of a WRGB panel according to another exemplary embodiment. Such as figure 2 As shown, the method for optimizing the color cast of the WRGB panel may further include the following steps.

[0045] In step 210, it is determined whether the display of the video signal on the WRGB panel is a color image display according to the RGB component information of the video signal, if yes, step 130 is executed, and if no, step 230 is executed.

[0046] Among them, the judgment basis for judging whether the display of the video signal on the WRGB panel is a color image display according to the RGB component information of the video signal is the R component, the G component and the B component in the RGB component information. When the R component, G component and B component in the RGB component information are different, it means that the display of the video information on the WRGB panel is a color image display. At this time, step 130 is performed.

[0047] In step 230, a video signal is output.

[0048] When the R component, G component and B component in the RGB component information are the same, it proves that the display of the video information on the WRGB panel is black image or white image display, because the display of black image and white image on the WRGB panel is the same as the RGB panel The above display is the same, and there is no problem of color cast due to the color matching ratio of the three colors of R, G, and B of the WRGB panel. Therefore, the RGB component information is not processed at this time, and the video signal is directly output.

[0049] This embodiment realizes that when the display of the video information on the WRGB panel is not a color image display, the video signal is output.

[0050] In an exemplary embodiment, figure 1 Step 130 of the corresponding embodiment may include the following steps.

[0051] When the R component and the B component in the RGB component information are both smaller than the overflow limit, the G component remains unchanged, and the R component and the B component are respectively enhanced according to the color matching ratio to obtain the enhanced R and B enhanced components.

[0052] Among them, according to the RGB color mode, the maximum component value of each component in the RGB component information is FF in hexadecimal system, and the value converted to decimal system is 255. Therefore, the R and B enhancement components obtained by enhancing the R and B components cannot exceed the maximum component value. The overflow limit is the critical value at which the R-enhanced component and/or B-enhanced component obtained after the R component and/or B component are enhanced according to the color matching ratio exceed the maximum component value. When the R and B components in the RGB component information are both less than the overflow limit, the G component remains unchanged, and the R and B components are respectively enhanced according to the ratio of R and G and the ratio of B and G in the color matching ratio, so that R The component and the B component are enhanced to offset the R enhancement component and the B enhancement component of the WRGB panel color cast. The R enhancement component, the G component and the B enhancement component are changed in the same proportion according to the color matching ratio, and they are consistent with the true RGB color matching ratio of the color image.

[0053] In a specific implementation of an exemplary embodiment, the color matching ratio is R:G:B=0.9:1.2:0.9, the R component of the RGB components, the G component and the B component are R 0 , G 0 , B 0 , Then the G component G=G 0 For a fixed value, the R component and B component of the RGB components are respectively enhanced according to the ratio of R to G and the ratio of B to G in the color matching ratio, so the obtained R and B enhancement components R=R 0 *(12/9), B=B 0 *(12/9), because 192*(12/9) is greater than the maximum component value of 255, and 191*(12/9) is less than 255, so the overflow limit is 192, at this time R 0 And B 0 Both are less than the overflow limit of 192.

[0054] This embodiment realizes that when the R component and the B component in the RGB component information are both smaller than the overflow limit, the G component remains unchanged, and the R enhancement component and the B enhancement component that offset the color cast of the WRGB panel are obtained.

[0055] image 3 Yes figure 1 Step 130 of the corresponding embodiment is in a flowchart of an embodiment. Such as image 3 As shown, this step 130 may also include the following steps.

[0056] In step 131, when the R component or the B component in the RGB component information is greater than or equal to the overflow limit, the sizes of the R component and the B component are compared.

[0057] Wherein, when the R component or the B component in the RGB component information is greater than or equal to the overflow limit, it means that the enhanced R component or the enhanced B component will exceed the maximum component value. At this time, compare the magnitude of the R component and the B component, and determine the larger component of the R component and the B component, that is, the component closest to the maximum component value.

[0058] In step 133, the larger component of the R component and the B component is enhanced to the maximum component value, and the smaller component of the R component and the B component is enhanced with the same enhancement ratio as the larger component to obtain the enhanced R enhancement component and B enhancement component.

[0059] Among them, the larger component of the R component and the B component is enhanced to the maximum component value, and the smaller component of the R component and the B component is enhanced with the same enhancement ratio as the larger component to obtain the offset of the WRGB panel color cast R enhancement component and B enhancement component.

[0060] In a specific implementation of an exemplary embodiment, the color matching ratio is R:G:B=0.9:1.2:0.9, and the R and B components in the RGB components are R 0 , B 0 , When R 0 Or B 0 Greater than or equal to the overflow limit and R 0 Greater than B 0 When the R component of the RGB component is enhanced to offset the color cast of the WRGB panel, the R enhancement component R=255, 255 is the maximum component value, and the B component of the RGB component is enhanced with the same enhancement ratio as the R component. The enhancement component R=255 means passing R 0 *255/R 0 So the enhancement ratio is 255/R 0 , Get the B enhancement component that offsets the WRGB panel color cast B=B 0 *(255/R 0 ). Same as R 0 Or B 0 Greater than or equal to the overflow limit and B 0 Greater than R 0 When the B component is enhanced to the B enhanced component B=255, the R component in the RGB component is enhanced with the same enhancement ratio as the B component to obtain the R enhanced component R=R 0 *(255/B 0 ).

[0061] This embodiment realizes that when the R component and the B component in the RGB component information are both greater than or equal to the overflow limit, the R enhancement component and the B enhancement component that cancel the color cast of the WRGB panel are obtained.

[0062] In an exemplary embodiment, the method for optimizing the color cast of the WRGB panel may further include the following steps.

[0063] Keep the R enhancement component and the B enhancement component unchanged, and obtain the G weakening component that offsets the color cast of the WRGB panel according to the color matching ratio and the enhancement ratio.

[0064] Among them, keeping the R enhancement component and the B enhancement component unchanged, the G component in the RGB component information is changed with the same enhancement ratio according to the color matching ratio to obtain the G weakening component that offsets the color cast of the WRGB panel.

[0065] In a specific implementation of an exemplary embodiment, the color matching ratio is R:G:B=0.9:1.2:0.9, the R component of the RGB components, the G component and the B component are R 0 , G 0 , B 0 , When R 0 Or B 0 Greater than or equal to the overflow limit and R 0 Greater than B 0 When the R enhancement component R=255, the enhancement ratio is 255/R 0 , B enhanced component B=B 0 *(255/R 0 ), at this time, keep the R and B enhancement components unchanged, and obtain the G weakening component to offset the color cast of the WRGB panel according to the ratio of R to G in the color matching ratio and the enhancement ratio. G=(255/R 0 )*9/12*G 0. Same as R 0 Or B 0 Greater than or equal to the overflow limit and B 0 Greater than R 0 When the B enhancement component B=255, the enhancement ratio is 255/B 0 ,,R enhancement component R=R 0 *(255/B 0 ). At this time, keep the R enhancement component and the B enhancement component unchanged, and obtain the G weakening component to offset the color cast of the WRGB panel according to the ratio of B to G in the color matching ratio and the enhancement ratio. G=(255/B 0 )*9/12*G 0.

[0066] This embodiment realizes the acquisition of the G weakening component that offsets the color cast of the WRGB panel.

[0067] Figure 4 It is a block diagram showing a device for optimizing the color cast of a WRGB panel according to an exemplary embodiment. The device performs figure 1 All or part of the steps of any one of the methods shown to achieve WRGB panel color cast optimization, such as Figure 4 As shown, the device includes, but is not limited to: an acquisition module 310, an enhancement module 330, and an output module 350.

[0068] The acquiring module 310 is used to acquire the RGB component information of the video signal for color image display on the WRGB panel and the color matching ratio of the three colors of R, G, and B of the WRGB panel.

[0069] The enhancement module 330 is configured to enhance the R component and the B component in the RGB component information according to the color matching ratio to obtain enhanced R and B enhancement components. The R and B enhancement components are used to offset the WRGB panel color cast.

[0070] The output module 350 is configured to perform conversion processing on the obtained R enhanced component, B enhanced component, and G component to obtain a WRGB signal, and output the WRGB signal.

[0071] In an exemplary embodiment, Figure 4 The acquisition module 310 of the corresponding embodiment includes but is not limited to: a judgment unit.

[0072] The judging unit is used to judge whether the display of the video signal on the WRGB panel is a color image display according to the RGB component information of the video signal.

[0073] In an exemplary embodiment, Figure 4 The enhancement module 330 of the corresponding embodiment includes but is not limited to:

[0074] The component enhancement unit is used to keep the G component unchanged when the R component and the B component in the RGB component information are both less than the overflow limit, and enhance the R component and the B component respectively according to the color matching ratio to obtain the enhanced R component And B enhancement component.

[0075] In an exemplary embodiment, the present invention includes an electronic device. The electronic device performs figure 1 All or part of the steps of any one of the shown methods for realizing WRGB panel color cast optimization, the electronic device includes:

[0076] processor;

[0077] A memory for storing processor executable instructions;

[0078] Among them, the processor is configured as:

[0079] Obtain the RGB component information of the video signal for color image display on the WRGB panel and the color matching ratio of the R, G, and B colors of the WRGB panel.

[0080] According to the color matching ratio, the R component and the B component in the RGB component information are enhanced to obtain the enhanced R enhanced component and the B enhanced component. The R enhanced component and the B enhanced component are used to offset the color cast of the WRGB panel.

[0081] The obtained R-enhanced component, B-enhanced component, and G component are converted to obtain a WRGB signal, and the WRGB signal is output.

[0082] In an exemplary embodiment, the present invention includes a computer-readable storage medium on which a computer program is stored, and the computer program is executed when executed by a processor. figure 1 The method shown to realize the optimization of WRGB panel color cast.

[0083] For the implementation process of the functions and roles of each module in the above-mentioned device, please refer to the implementation process of the corresponding steps in the above-mentioned method for optimizing the color cast of the WRGB panel, which will not be repeated here.

[0084] It should be understood that the present invention is not limited to the precise structure that has been described above and shown in the drawings, and various modifications and changes can be performed without departing from its scope. The scope of the present invention is only limited by the appended claims.