Display panel, display method thereof, and display apparatus

A display panel, comprising:

• a plurality of pixel units, wherein each of the pixel units comprises a mixed color subpixel and three single color subpixels, and lights emitted by the three single color subpixels are capable of being mixed to produce a light of a mixed color produced by the mixed color subpixel;
• a first calculating processor configured to obtain original luminance of the three single color subpixels in each of the pixel units based on an image to be displayed, calculate luminance of a mixed color produced by the three single color subpixels based on the smallest luminance among the original luminance the three single color subpixels, and obtain first substitute luminance of the mixed color subpixel based on the luminance of the mixed color, and first substitute luminance of the three single color subpixels except for the one having the smallest luminance, wherein one of the three single color subpixels which has the smallest luminance of the mixed color is denoted by A1, the other two of the three single color subpixels are denoted by A2 and A3, the first substitute luminance of A2 is obtained by subtracting luminance contributed by A2 in the mixed color based on A1 from the original luminance of A2, and the first substitute luminance of A3 is obtained by subtracting luminance contributed by A3 in the mixed color based on A1 from the original luminance of A3;
• a second calculating processor, configured to obtain luminance compensation values of the three single color subpixels that need to be color compensated at a time of obtaining the luminance of the mixed color subpixel as the first substitute luminance, based on pre-stored color compensation ratios of the three single color subpixels, so as to obtain luminance of the three single color subpixels after color compensation;
• a third calculating processor, configured to calculate luminance of the mixed color produced by the three single color subpixels in the pixel unit based on each of the luminance of the three single color subpixels after color compensation respectively, based on pre-stored ratios of the lights emitted by the three single color subpixels mixed to produce the light of the mixed color emitted by the actual mixed color subpixel, wherein the smallest luminance of the mixed color is denoted by L11;
• and
• a data writing processor, configured to set input luminance of A1 as 0, and obtain actual luminance of A2, A3, and the mixed color subpixel based on L11, the pre-stored ratios of the lights emitted by the three single color subpixels mixed to produce the light of the mixed color emitted by the actual mixed color subpixel, the luminance of A2 and A3 after color compensation, and the first substitute luminance of the mixed color subpixel, and perform data input;
• wherein the display panel further comprises:
• an acquisition processor, configured to obtain chromaticity coordinates of the three single color subpixels and the mixed color subpixel in the display panel at given output luminance;
• a fourth calculating processor, configured to calculate ratios of the lights produced by the three single color subpixels mixed to produce the light of the mixed color emitted by the target mixed color subpixel, which are denoted by RatioAX1, RatioAX2, And RatioAX3 respectively, through a color mixing formula and based on chromaticity coordinate of a target mixed color subpixel;
• calculate ratios of the lights produced by the three single color subpixels mixed to produce the light of the mixed color emitted by the actual mixed color subpixel, which are denoted by RatioBX1, RatioBX2, And RatioBX3 respectively, based on the chromaticity coordinates of the three single color subpixels and the chromaticity coordinate of the mixed color subpixel;
• and calculate the color compensation ratios of the three single color subpixels, which are denoted by gainX1, gainX2, and gainX3 respectively, based on RatioAX1, RatioAX2, RatioAX3, RatioBX1, RatioBX2, and RatioBX3;
• and
• a storage processor, configured to store RatioBX1, RatioBX2, RatioBX3, gainX1, gainX2, and gainX3.

A non-transitory computer readable storage medium having stored thereon computer program instructions, wherein when the computer program instructions are executed by a processor, a display method of a display panel is implemented, wherein the display panel comprises a plurality of pixel units, each of the pixel units comprises a mixed color subpixel and three single color subpixels, and lights emitted by the three single color subpixels are capable of being mixed to produce a light of a mixed color produced by the mixed color subpixel, the display method comprising:

• obtaining original luminance of the three single color subpixels in each of the pixel units based on an image to be displayed, calculating luminance of a mixed color produced by the three single color subpixels based on a smallest luminance among the original luminance of the three single color subpixels, and obtaining a first substitute luminance of the mixed color subpixel based on the luminance of the mixed color, and first substitute luminance of the three single color subpixels except for the one having the smallest luminance, wherein one of the three single color subpixels which has the smallest luminance of the mixed color is denoted by A1, the other two of the three single color subpixels are denoted by A2 and A3, the first substitute luminance of A2 is obtained by subtracting luminance contributed by A2 in the mixed color based on A1 from the original luminance of A2, and the first substitute luminance of A3 is obtained by subtracting luminance contributed by A3 in the mixed color based on A1 from the original luminance of A3;
• obtaining luminance compensation values of the three single color subpixels that need to be color compensated at a time of obtaining the luminance of the mixed color subpixel as the first substitute luminance, based on pre-stored color compensation ratios of the three single color subpixels, so as to obtain luminance of the three single color subpixels after color compensation;
• calculating luminance of the mixed color produced by the three single color subpixels in the pixel unit respectively based on each of the luminance of the three single color subpixels after color compensation, based on pre-stored ratios of the lights emitted by the three single color subpixels mixed to produce the light of the mixed color emitted by the actual mixed color subpixel, wherein the smallest luminance of the mixed color is denoted by L11;
• and
• setting input luminance of A1 as 0, and obtaining actual luminance of A2, A3, and the mixed color subpixel based on L11, the pre-stored ratios of the lights emitted by the three single color subpixels mixed to produce the light of the mixed color emitted by the actual mixed color subpixel, the luminance of A2 and A3 after color compensation, and the first substitute luminance of the mixed color subpixel, and performing data input;
• wherein the non-transitory computer readable storage medium further comprises, before calculating the luminance of the mixed color produced by the three single color subpixels:
• obtaining chromaticity coordinates of the three single color subpixels and the mixed color subpixel in the display panel at given output luminance;
• calculating ratios of the lights produced by the three single color subpixels mixed to produce the light of the mixed color emitted by the target mixed color subpixel, which are denoted by RatioAX1, RatioAX2, And RatioAX3 respectively, through a color mixing formula and based on chromaticity coordinate of a target mixed color subpixel;
• calculating ratios of the lights produced by the three single color subpixels mixed to produce the light of the mixed color emitted by the actual mixed color subpixel, which are denoted by RatioBX1, RatioBX2, And RatioBX3 respectively, based on the chromaticity coordinates of the three single color subpixels and the chromaticity coordinate of the mixed color subpixel;
• calculating the color compensation ratios of the three single color subpixels, which are denoted by gainX1, gainX2, and gainX3 respectively, based on RatioAX1, RatioAX2, RatioAX3, RatioBX1, RatioBX2, and RatioBX3, and
• storing RatioBX1, RatioBX2, RatioBX3, gainX1, gainX2, and gainX3.