Display control method and device for N-primary-color display panel, and display device
The display control method according to some embodiments of the present disclosure includes: acquiring an M-primary-color input signal from each pixel in an original image, the original image including a plurality of pixels corresponding to the plurality of pixel units respectively, each pixel being configured to display a colored image in M primary colors, M being an integer greater than 1 and smaller than N; and calculating an N-primary-color input signal for a corresponding pixel unit of the N-primary-color display panel in accordance with color coordinates of each primary color for the N-primary-color display panel and the M-primary-color input signal.
1. A display control method for an N-primary-color display panel, wherein the N-primary-color display panel comprises a plurality of pixel units, and each pixel unit comprises subpixels in N primary colors, where N is an integer greater than or equal to 4,
the display control method comprising:
acquiring an M-primary-color input signal from each pixel in an original image, the original image comprising a plurality of pixels corresponding to the plurality of pixel units respectively, each pixel being configured to display a colored image in M primary colors, M being an integer greater than 1 and smaller than N; and
calculating an N-primary-color input signal for a corresponding pixel unit of the N-primary-color display panel in accordance with color coordinates of each primary color for the N-primary-color display panel and the M-primary-color input signal,
wherein the M primary colors in the M-primary-color input signal comprise red (R), green (G) and blue (B),
wherein the N primary colors in the N-primary-color input signal comprise the M primary colors, and at least one primary color X other than the M primary colors,
wherein X out in the N-primary-color input signal for the corresponding pixel unit of the N-primary-color display panel acquired in accordance with the M-primary-color input signal for each pixel in the original image is calculated through the following equation: X out =∂τ ij ×j in +(1−∂)τ ij ×i in , where at least one coordinate value of color coordinates of the primary color X in one direction is located between corresponding coordinate values of color coordinates of primary colors i, j in a chromacity diagram, a primary color k is a primary color other than the primary colors i, j in the primary colors R, G and B, X out represents an input signal for the primary color X of the corresponding pixel unit of the N-primary-color display panel, τ=
L
xi
L
xi
+
L
xj
,
τ
ij
=
min
(
i
in
,
j
in
)
max
(
l
in
,
j
in
)
,
min (i in ,j in ) represents a minimum value of grayscale values for i and j in the M-primary-color input signal, max (i in ,j in ) represents a maximum value of the grayscale values for i and j in the M-primary-color input signal, L xi represents a distance between a position corresponding to the color coordinates of x and a position corresponding to the color coordinates of i in the chromacity diagram, and L xj represents a distance between the position corresponding to the color coordinates of x and a position corresponding to the color coordinates of j in the chromacity diagram.
2. The display control method according to claim 1 , wherein the calculating the N-primary-color input signal for the corresponding pixel unit of the N-primary-color display panel in accordance with the color coordinates of each primary color for the N-primary-color display panel and the M-primary-color input signal comprises:
calculating a conversion matrix from the M-primary-color input signal to the N-primary-color input signal in accordance with the color coordinates of each primary color for the N-primary-color display panel and the M-primary-color input signal; and
multiplying the M-primary-color input signal with the conversion matrix to acquire the N-primary-color input signal.
3. The display control method according to claim 1 , wherein each pixel unit of the N-primary-color display panel comprises an R subpixel, a G subpixel, a B subpixel, a cyan (C) subpixel and a yellow (Y) subpixel, and each pixel in the original image is configured to display the colored image in R, G and B.
4. The display control method according to claim 3 , wherein the calculating the conversion matrix from the M-primary-color input signal to the N-primary-color input signal in accordance with the color coordinates of each primary color for the N-primary-color display panel and the M-primary-color input signal comprises calculating the conversion matrix T from a three-primary-color input signal for each pixel in the original image to a five-primary-color input signal for the corresponding pixel unit of the N-primary-color display panel through the following equation:
T
=
[
1
0
0
0
1
0
0
0
1
∂
τ
G
R
(
1
-
∂
)
τ
G
R
0
0
(
1
-
β
)
τ
G
B
β
τ
G
B
]
,
where
∂
=
L
YG
L
Y
G
+
L
Y
R
,
β
=
L
C
G
L
C
G
+
L
C
B
,
τ
G
R
=
min
(
G
in
,
R
in
)
max
(
G
in
,
R
in
)
,
τ
G
B
=
min
(
G
in
,
B
in
)
max
(
G
in
,
B
in
)
,
min
(
G
in
,
R
in
)
represents a minimum value of grayscale values of G and R in the three-primary-color input signal max(G in ,R in ), represents a maximum value of the grayscale values of G and R in the three-primary-color input signal, min(G in ,B in ) represents a minimum value of grayscale values of G and B in the three-primary-color input signal max(G in ,B in ) represents a maximum value of the grayscale values of G and B in the three-primary-color input signal, L YR represents a distance between a position corresponding to color coordinates of Y and a position corresponding to color coordinates of R in the chromacity diagram, L YG represents a distance between the position corresponding to the color coordinates of Y and a position corresponding to color coordinates of G in the chromacity diagram, L CG represents a distance between a position corresponding to color coordinates of C and the position corresponding to the color coordinates of G in the chromacity diagram, and L CB represents a distance between the position corresponding to the color coordinates of C and a position corresponding to color coordinates of B in the chromacity diagram.
5. The display control method according to claim 1 , wherein each pixel unit of the N-primary-color display panel comprises an R subpixel, a G subpixel, a B subpixel, a C subpixel, a Y subpixel, and a magenta (M) subpixel, and each pixel in the original image is configured to display the colored image in R, G and B.
6. The display control method according to claim 5 , wherein the calculating the conversion matrix from the M-primary-color input signal to the N-primary-color input signal in accordance with the color coordinates of each primary color for the N-primary-color display panel and the M-primary-color input signal comprises calculating the conversion matrix T from a three-primary-color input signal for each pixel in the original image to a six-primary-color input signal for the corresponding pixel unit of the N-primary-color display panel through the following equation:
T
=
[
1
0
0
0
1
0
0
0
1
∂
τ
G
R
(
1
-
∂
)
τ
G
R
0
0
(
1
-
β
)
τ
G
B
β
τ
G
B
(
1
-
γ
)
τ
R
B
0
γ
τ
R
B
]
,
where
∂
=
L
YG
L
Y
G
+
L
Y
R
,
β
=
L
C
G
L
C
G
+
L
C
B
,
γ
=
L
MR
L
MB
+
L
MR
τ
G
R
=
min
(
G
in
,
R
in
)
max
(
G
in
,
R
in
)
,
τ
G
B
=
min
(
G
in
,
B
in
)
max
(
G
in
,
B
in
)
,
τ
RB
=
min
(
G
in
,
B
in
)
max
(
G
in
,
B
in
)
,
min
(
G
in
,
R
in
)
represents a minimum value of grayscale values of G and R in the three-primary-color input signal, max(G in ,R in ) represents a maximum value of the grayscale values of G and R in the three-primary-color input signal, min(G in ,B in ) represents a minimum value of grayscale values of G and B in the three-primary-color input signal, max(G in ,B in ) represents a maximum value of the grayscale values of G and B in the three-primary-color input signal min(R in , B in ) represents a minimum value of grayscale values of R and B in the three-primary-color input signal, max(R in ,B in ) represents a maximum value of the grayscale values of R and B in the three-primary-color input signal, L YR represents a distance between a position corresponding to color coordinates of Y and a position corresponding to color coordinates of R in the chromacity diagram, L YG represents a distance between the position corresponding to the color coordinates of Y and a position corresponding to color coordinates of G in the chromacity diagram, L CG represents a distance between a position corresponding to color coordinates of C and the position corresponding to the color coordinates of G in the chromacity diagram, L CB represents a distance between the position corresponding to the color coordinates of C and a position corresponding to color coordinates of B in the chromacity diagram, L MR represents a distance between a position corresponding to color coordinates of M and the position corresponding to the color coordinates of R in the chromacity diagram, and L MB represents a distance between the position corresponding to the color coordinates of M and the position corresponding to the color coordinates of B in the chromacity diagram.
7. The display control method according to claim 1 , wherein prior to the calculating the N-primary-color input signal for the corresponding pixel unit of the N-primary-color display panel in accordance with the color coordinates of each primary color for the N-primary-color display panel and the M-primary-color input signal, the display control method further comprises testing the N-primary-color display panel to acquire the color coordinates of each primary color for the N-primary-color display panel.
8. The display control method according to claim 1 , wherein subsequent to calculating the N-primary-color input signal for the corresponding pixel unit of the N-primary-color display panel in accordance with the color coordinates of each primary color for the N-primary-color display panel and the M-primary-color input signal, the display control method further comprises processing the N-primary-color input signal through a pixel rendering algorithm to acquire an N-primary-color driving signal, and inputting the N-primary-color driving signal to the N-primary-color display panel.
9. A display control device for an N-primary-color display panel implemented by a computer, comprising a processor, a memory, and computer programs stored in the memory and executed by the processor to implement a display control method for the N-primary-color display panel,
wherein the N-primary-color display panel comprises a plurality of pixel units, and each pixel unit comprises subpixels in N primary colors, where N is an integer greater than or equal to 4;
wherein the processor is configured to execute the computer programs, and configured to implement the method according to claim 1 .
10. The display control device according to claim 9 , wherein the processor is further configured to execute the computer programs, and configured to: calculate a conversion matrix from the M-primary-color input signal to the N-primary-color input signal in accordance with the color coordinates of each primary color for the N-primary-color display panel and the M-primary-color input signal; and multiply the M-primary-color input signal with the conversion matrix to acquire the N-primary-color input signal.
11. The display control device according to claim 9 , wherein each pixel unit of the N-primary-color display panel comprises an R subpixel, a G subpixel, a B subpixel, a C subpixel and a Y subpixel, and each pixel in the original image is configured to display the colored image in R, G and B.
12. The display control device according to claim 11 , wherein the processor is further configured to execute the computer program, so as to calculate the conversion matrix T from a three-primary-color input signal for each pixel in the original image to a five-primary-color input signal for the corresponding pixel unit of the N-primary-color display panel through the following equation:
T
=
[
1
0
0
0
1
0
0
0
1
∂
τ
G
R
(
1
-
∂
)
τ
G
R
0
0
(
1
-
β
)
τ
G
B
β
τ
G
B
(
1
-
γ
)
τ
R
B
0
γ
τ
R
B
]
,
where
∂
=
L
YG
L
Y
G
+
L
Y
R
,
β
=
L
C
G
L
C
G
+
L
C
B
,
γ
=
L
MR
L
MB
+
L
MR
τ
G
R
=
min
(
G
in
,
R
in
)
max
(
G
in
,
R
in
)
,
τ
G
B
=
min
(
G
in
,
B
in
)
max
(
G
in
,
B
in
)
,
τ
RB
=
min
(
G
in
,
B
in
)
max
(
G
in
,
B
in
)
,
min
(
G
in
,
R
in
)
represents a minimum value of grayscale values of G and R in the three-primary-color input signal, max(G in ,R in ) represents a maximum value of the grayscale values of G and R in the three-primary-color input signal min(G in ,B in ) represents a minimum value of grayscale values of G and B in the three-primary-color input signal max(G in ,B in ) represents a maximum value of the grayscale values of G and B in the three-primary-color input signal, L YR represents a distance between a position corresponding to color coordinates of Y and a position corresponding to color coordinates of R in the chromacity diagram, L YG represents a distance between the position corresponding to the color coordinates of Y and a position corresponding to color coordinates of G in the chromacity diagram, L CG represents a distance between a position corresponding to color coordinates of C and the position corresponding to the color coordinates of G in the chromacity diagram, and L CB represents a distance between the position corresponding to the color coordinates of C and a position corresponding to color coordinates of B in the chromacity diagram.
13. The display control device according to claim 9 , wherein each pixel unit of the N-primary-color display panel comprises an R subpixel, a G subpixel, a B subpixel, a C subpixel, a Y subpixel, and an M subpixel, and each pixel in the original image is configured to display the colored image in R, G and B.
14. The display control device according to claim 13 , wherein the processor is further configured to execute the computer program, and configured to calculate the conversion matrix T from a three-primary-color input signal for each pixel in the original image to a six-primary-color input signal for the corresponding pixel unit of the N-primary-color display panel through the following equation:
T
=
[
1
0
0
0
1
0
0
0
1
∂
τ
G
R
(
1
-
∂
)
τ
G
R
0
0
(
1
-
β
)
τ
G
B
β
τ
G
B
(
1
-
γ
)
τ
R
B
0
γ
τ
R
B
]
,
where
∂
=
L
YG
L
Y
G
+
L
Y
R
,
β
=
L
C
G
L
C
G
+
L
C
B
,
γ
=
L
MR
L
MB
+
L
MR
τ
G
R
=
min
(
G
in
,
R
in
)
max
(
G
in
,
R
in
)
,
τ
G
B
=
min
(
G
in
,
B
in
)
max
(
G
in
,
B
in
)
,
τ
RB
=
min
(
G
in
,
B
in
)
max
(
G
in
,
B
in
)
,
min
(
G
in
,
R
in
)
represents a minimum value of grayscale values of G and R in the three-primary-color input signal, max(G in ,R in ) represents a maximum value of the grayscale values of G and R in the three-primary-color input signal min(G in ,B in ) represents a minimum value of grayscale values of G and B in the three-primary-color input signal, max(G in ,B in ) represents a maximum value of the grayscale values of G and B in the three-primary-color input signal min(R in ,B in ) represents a minimum value of grayscale values of R and B in the three-primary-color input signal max(R in ,B in ) represents a maximum value of the grayscale values of R and B in the three-primary-color input signal, L YR represents a distance between a position corresponding to color coordinates of Y and a position corresponding to color coordinates of R in the chromacity diagram, L YG represents a distance between the position corresponding to the color coordinates of Y and a position corresponding to color coordinates of G in the chromacity diagram, L CG represents a distance between a position corresponding to color coordinates of C and the position corresponding to the color coordinates of G in the chromacity diagram, L CB represents a distance between the position corresponding to the color coordinates of C and a position corresponding to color coordinates of B in the chromacity diagram, L MR represents a distance between a position corresponding to color coordinates of M and the position corresponding to the color coordinates of R in the chromacity diagram, and L MB represents a distance between the position corresponding to the color coordinates of M and the position corresponding to the color coordinates of B in the chromacity diagram.
15. The display control device according to claim 9 , wherein the processor is further configured to execute the computer programs, and configured to process the N-primary-color input signal through a pixel rendering algorithm to acquire an N-primary-color driving signal, and to input the N-primary-color driving signal to the N-primary-color display panel.
16. A display device, comprising an N-primary-color display panel and the display control device according to claim 9 .
17. A display control method for an N-primary-color display panel, wherein the N-primary-color display panel comprises a plurality of pixel units, and each pixel unit comprises subpixels in N primary colors, where N is an integer greater than or equal to 4,
the display control method comprising:
acquiring an M-primary-color input signal from each pixel in an original image, the original image comprising a plurality of pixels corresponding to the plurality of pixel units respectively, each pixel being configured to display a colored image in M primary colors, M being an integer greater than 1 and smaller than N; and
calculating an N-primary-color input signal for a corresponding pixel unit of the N-primary-color display panel in accordance with color coordinates of each primary color for the N-primary-color display panel and the M-primary-color input signal,
wherein the M primary colors in the M-primary-color input signal comprise red (R), green (G) and blue (B),
wherein each pixel unit of the N-primary-color display panel comprises an R subpixel, a G subpixel, a B subpixel, a cyan (C) subpixel and a yellow (Y) subpixel, and each pixel in the original image is configured to display the colored image in R, G and B,
wherein the calculating the conversion matrix from the M-primary-color input signal to the N-primary-color input signal in accordance with the color coordinates of each primary color for the N-primary-color display panel and the M-primary-color input signal comprises calculating the conversion matrix T from a three-primary-color input signal for each pixel in the original image to a five-primary-color input signal for the corresponding pixel unit of the N-primary-color display panel through the following equation:
T
=
[
1
0
0
0
1
0
0
0
1
∂
τ
G
R
(
1
-
∂
)
τ
G
R
0
0
(
1
-
β
)
τ
G
B
β
τ
G
B
]
,
where
∂
=
L
YG
L
Y
G
+
L
Y
R
,
β
=
L
C
G
L
C
G
+
L
C
B
,
τ
G
R
=
min
(
G
in
,
R
in
)
max
(
G
in
,
R
in
)
,
τ
G
B
=
min
(
G
in
,
B
in
)
max
(
G
in
,
B
in
)
,
min
(
G
in
,
R
in
)
represents a minimum value of grayscale values of G and R in the three-primary-color input signal, max(G in ,R in ) represents a maximum value of the grayscale values of G and R in the three-primary-color input signal min(G in ,B in ) represents a minimum value of grayscale values of G and B in the three-primary-color input signal max(G in ,B in ) represents a maximum value of the grayscale values of G and B in the three-primary-color input signal, L YR represents a distance between a position corresponding to color coordinates of Y and a position corresponding to color coordinates of R in the chromacity diagram, L YG represents a distance between the position corresponding to the color coordinates of Y and a position corresponding to color coordinates of G in the chromacity diagram, L CG represents a distance between a position corresponding to color coordinates of C and the position corresponding to the color coordinates of G in the chromacity diagram, and L CB represents a distance between the position corresponding to the color coordinates of C and a position corresponding to color coordinates of B in the chromacity diagram.
18. A display control method for an N-primary-color display panel, wherein the N-primary-color display panel comprises a plurality of pixel units, and each pixel unit comprises subpixels in N primary colors, where N is an integer greater than or equal to 4,
the display control method comprising:
acquiring an M-primary-color input signal from each pixel in an original image, the original image comprising a plurality of pixels corresponding to the plurality of pixel units respectively, each pixel being configured to display a colored image in M primary colors, M being an integer greater than 1 and smaller than N; and
calculating an N-primary-color input signal for a corresponding pixel unit of the N-primary-color display panel in accordance with color coordinates of each primary color for the N-primary-color display panel and the M-primary-color input signal,
wherein the M primary colors in the M-primary-color input signal comprise red (R), green (G) and blue (B),
wherein each pixel unit of the N-primary-color display panel comprises an R subpixel, a G subpixel, a B subpixel, a C subpixel, a Y subpixel, and a magenta (M) subpixel, and each pixel in the original image is configured to display the colored image in R, G and B,
wherein the calculating the conversion matrix from the M-primary-color input signal to the N-primary-color input signal in accordance with the color coordinates of each primary color for the N-primary-color display panel and the M-primary-color input signal comprises calculating the conversion matrix T from a three-primary-color input signal for each pixel in the original image to a six-primary-color input signal for the corresponding pixel unit of the N-primary-color di splay panel through the following equation:
∂
=
L
x
i
L
xi
+
L
x
j
,
τ
ij
=
min
(
i
in
,
j
in
)
max
(
i
in
,
j
in
)
,
represents a minimum value of grayscale values of G and R in the three-primary-color input signal, max(G in ,R in ) represents a maximum value of the grayscale values of G and R in the three-primary-color input signal min(G in ,B in ) represents a minimum value of grayscale values of G and B in the three-primary-color input signal max(G in ,B in ) represents a maximum value of the grayscale values of G and B in the three-primary-color input signal min(R in ,B in ) represents a minimum value of grayscale values of R and B in the three-primary-color input signal, max(R in ,B in ) represents a maximum value of the grayscale values of R and B in the three-primary-color input signal, L YR represents a distance between a position corresponding to color coordinates of Y and a position corresponding to color coordinates of R in the chromacity diagram, L YG represents a distance between the position corresponding to the color coordinates of Y and a position corresponding to color coordinates of G in the chromacity diagram, L CG represents a distance between a position corresponding to color coordinates of C and the position corresponding to the color coordinates of G in the chromacity diagram, L CB represents a distance between the position corresponding to the color coordinates of C and a position corresponding to color coordinates of B in the chromacity diagram, L MR represents a distance between a position corresponding to color coordinates of M and the position corresponding to the color coordinates of R in the chromacity diagram, and L MB represents a distance between the position corresponding to the color coordinates of M and the position corresponding to the color coordinates of B in the chromacity diagram.