WO2020207169A1 - 显示面板的驱动方法、驱动系统和显示装置 - Google Patents

显示面板的驱动方法、驱动系统和显示装置 Download PDF

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WO2020207169A1
WO2020207169A1 PCT/CN2020/078415 CN2020078415W WO2020207169A1 WO 2020207169 A1 WO2020207169 A1 WO 2020207169A1 CN 2020078415 W CN2020078415 W CN 2020078415W WO 2020207169 A1 WO2020207169 A1 WO 2020207169A1
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signal
hue
color saturation
color
luminance
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French (fr)
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单剑锋
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HKC Co Ltd
Chongqing HKC Optoelectronics Technology Co Ltd
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HKC Co Ltd
Chongqing HKC Optoelectronics Technology Co Ltd
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Priority claimed from CN201910275213.8A external-priority patent/CN110136662B/zh
Priority claimed from CN201910275101.2A external-priority patent/CN110010087B/zh
Application filed by HKC Co Ltd, Chongqing HKC Optoelectronics Technology Co Ltd filed Critical HKC Co Ltd
Priority to US17/417,392 priority Critical patent/US11423854B2/en
Publication of WO2020207169A1 publication Critical patent/WO2020207169A1/zh
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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
    • 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
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0242—Compensation of deficiencies in the appearance of colours
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0271—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping
    • G09G2320/0276—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping for the purpose of adaptation to the characteristics of a display device, i.e. gamma correction
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/028—Improving the quality of display appearance by changing the viewing angle properties, e.g. widening the viewing angle, adapting the viewing angle to the view direction
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2340/00—Aspects of display data processing
    • G09G2340/06—Colour space transformation
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2360/00—Aspects of the architecture of display systems
    • G09G2360/16—Calculation or use of calculated indices related to luminance levels in display data

Definitions

  • the present application relates to the field of display technology, and in particular to a driving method, driving system and display device of a display panel.
  • liquid crystal displays have become the mainstream products of displays due to their thin body, power saving and low radiation, and have been widely used.
  • Most of the liquid crystal displays are backlit liquid crystal displays, which include a liquid crystal panel and a backlight module (Backlight Module).
  • the working principle of the liquid crystal panel is to place liquid crystal molecules between two parallel glass substrates, and apply a driving voltage on the two glass substrates to control the rotation direction of the liquid crystal molecules, so as to refract light from the backlight module to produce images.
  • VA-type liquid crystal technology has higher production efficiency and lower manufacturing Cost advantage, but compared with IPS liquid crystal technology in terms of optical properties, there are more obvious defects in optical properties; that is, some large-size display panels, especially VA-type liquid crystal drives, have color shift problems under large viewing angles.
  • the purpose of this application is to provide a driving method, a driving system and a display device for a display panel, which can effectively improve the color shift of the display panel.
  • the application discloses a driving method of a display panel, which includes the steps:
  • the second color signal is obtained by converting the second brightness normalized signal
  • the second color signal is used to drive the display panel.
  • the driving method using the above-mentioned display panel includes a receiver, an adjuster, a calculator, a converter, and a driver; the receiver receives the first color signal, and converts the first color The signal is converted into a first luminance normalized signal, and the first hue color saturation luminance space signal is obtained according to the first luminance normalization signal; the adjuster obtains the color saturation signal of the first hue color saturation luminance space signal , Increase the color saturation value of the color saturation signal to obtain a second color saturation signal to obtain the second hue color saturation luminance space signal; the calculator lowers the first hue color saturation luminance space signal according to the second hue color saturation luminance space signal A minimum value in a brightness normalization signal to obtain a second brightness normalization signal; the converter converts the second brightness normalization signal to obtain a second color signal; the driver uses the second color signal to drive the display panel.
  • the application also discloses a display device, including the above-mentioned driving system of the display panel and the display panel driven by the driving system.
  • the color cast is more serious due to the more mixed color components other than the main hue; this application reduces the color mixing ratio by lowering the minimum value in the first brightness normalized signal to improve the color The purpose of saturation; this can improve the purity of the main color, so that it can reduce the color shift of the display panel, and at the same time make the color of the display panel more beautiful.
  • This solution does not sacrifice the aperture ratio of the display panel, and effectively avoids the transparency of the display panel. The light rate decreases.
  • FIG. 1 is a schematic diagram of the large viewing angle and front view role deviation changes of various representative color systems in a liquid crystal display panel
  • FIG. 2 is a first comparison schematic diagram that does not distinguish between primary and secondary pixels and distinguishes between primary and secondary pixels;
  • FIG. 3 is a second schematic diagram of comparison without distinguishing between primary and secondary pixels and distinguishing between primary and secondary pixels;
  • FIG. 4 is a schematic diagram of a display device according to an embodiment of the present application.
  • FIG. 5 is a schematic diagram of a driving system for a display surface according to an embodiment of the present application
  • FIG. 6 is a flowchart of a driving method of a display panel according to an embodiment of the present application.
  • FIG. 7 is a schematic diagram of changes of a color saturation signal and a second color saturation signal according to an embodiment of the present application.
  • FIG. 8 is a schematic diagram of changes of a color saturation signal and a second color saturation signal according to another embodiment of the present application.
  • FIG. 9 is a schematic diagram of changes in color difference between a color saturation signal and a second color saturation signal according to an embodiment of the present application.
  • FIG. 10 is a schematic diagram of changes in color difference of different colors of a color saturation signal and a second color saturation signal according to another embodiment of the present application;
  • FIG. 11 is a schematic diagram of hue expression according to an embodiment of the present application.
  • FIG. 12 is a schematic diagram of a driving system for a display surface according to an embodiment of the present application.
  • FIG. 13 is a flowchart of a driving method of a display panel according to an embodiment of the present application.
  • FIG. 14 is a schematic diagram of changes in hue and hue interval correction value of an embodiment of the present application.
  • FIG. 15 is a schematic diagram of changes in hue and hue interval correction values of another embodiment of the present application.
  • VA liquid crystal technology has higher production efficiency and lower manufacturing. Cost advantage, but compared with IPS liquid crystal technology in terms of optical properties, there are more obvious defects in optical properties, especially large-size panels that require a larger viewing angle for commercial applications.
  • Figure 1 is a schematic diagram of the large viewing angle and front view role shift changes of various representative color systems in the display panel; Figure 1 When the hue is close to the pure color of R (red), G (green), and B (blue), there is viewing angle The color cast degradation of R, G, and B is more obvious. At the same time, when the hue is close to the pure tones of R, G, and B, the color cast is more obvious. The reason is that the pure tones of R, G, and B have other color components.
  • FIG. 2 is a first comparison diagram without distinguishing between primary and secondary pixels and distinguishing between primary and secondary pixels.
  • Figure 3 is a second schematic diagram of comparison without distinguishing between primary and secondary pixels and distinguishing between primary and secondary pixels.
  • ⁇ A represents the pretilt angle of the main pixel under high voltage
  • ⁇ B represents the pretilt angle of the sub-pixel under low voltage.
  • FIG. 3 is the gray scale signal, and the ordinate is the brightness signal. Under a large viewing angle, the brightness quickly saturates with the signal, causing the problem of large viewing angle deviation (Fig. 3, the arc segment on the left). The distinction between primary and secondary pixels can improve this problem to a certain extent.
  • the high-voltage side viewing angle voltage corresponding to the brightness change ratio of the liquid crystal display is more likely to become saturated, so the original signal is divided into a large voltage and a small voltage signal, as shown in Figure 3.
  • the large voltage plus the small voltage should maintain the original front view signal with the brightness change .
  • the side-view brightness seen by a large voltage changes with the gray scale as shown in Part A (Part A) in Figure 3, and the side-view brightness seen with a small voltage changes with the gray scale as shown in Part B (Part B) in Figure 3.
  • the resultant brightness changes with the gray scale, which is closer to the relationship between the brightness of the emmetropia and the gray scale, so the relationship between the brightness of the viewing angle and the signal changes is close to that of the original signal.
  • the viewing angle is improved.
  • the main and sub-pixels are given different driving voltages to solve the defect of visual role deviation.
  • the pixel design often needs to design metal traces or TFT (Thin Film Transistor) elements to drive the sub-pixels.
  • TFT Thin Film Transistor
  • a display device 100 which includes a drive system 200 of a display panel and a display panel 300.
  • a driving system 200 of a display panel including a receiver 210, an adjuster 230, a calculator 250, a converter 260, and a driver 270;
  • the receiver 210 receives The first color signal converts the first color signal into a first normalized luminance signal, and converts the first luminance normalized signal to obtain a first hue color saturation luminance spatial signal;
  • the adjuster 230 obtains the first hue color
  • the color saturation signal of the saturation luminance space signal is increased, and the color saturation value of the color saturation signal is increased to obtain the second color saturation signal to obtain the second hue color saturation luminance space signal;
  • the calculator 250 according to the first
  • the two-tone color saturation luminance space signal reduces the minimum value in the first luminance normalization signal to obtain a second luminance normalization signal;
  • the converter 260 converts the second color according to the second luminance normalization signal Signal;
  • the driver 270 uses the second color signal to drive the display panel 300.
  • FIG. 6 is a flowchart of a method for driving a display panel of the present application.
  • the present application discloses a method for driving a display panel, including the steps:
  • S1 Receive the first color signal, convert the first color signal into a first brightness normalized signal, and convert the first brightness normalized signal to obtain the first hue color saturation brightness (HSV, Hue, saturation, Value) space signal;
  • HSV hue color saturation brightness
  • the color cast is more serious due to the more mixed color components other than the main hue; this application reduces the color mixing ratio by lowering the minimum value in the first brightness normalized signal to improve the color The purpose of saturation; this can improve the purity of the main color, reduce the color cast of the display panel, and make the color of the display panel more beautiful.
  • This solution does not sacrifice the aperture ratio of the display panel, and effectively avoids the light transmittance of the display panel The reduced situation occurs. Specifically, taking red as an example, when the hue is close to the pure red hue, the color shift degradation of viewing angle is more obvious. This can be achieved by reducing the brightness normalization signal of the color with the smallest brightness normalization signal in the red pure color hue.
  • the purpose of increasing the color saturation of the main hue in the red pure color tone, reducing the mixing of other colors (green and blue) in the red-based hue, making the color of the large viewing angle close to the original hue, face and side view is solved, wherein the first color signal can be the three primary color signals of red, green and blue.
  • the specific second color signal may be the second red, green and blue three primary color signals.
  • red is the main hue; this application can also increase the minimum brightness normalization signal in the brightness normalization signal of other colors in the red pure color tone, thereby Reduced the color saturation of the main color of red; this will make the mixed color close to the white neutral color, and the color cast of the neutral color will decrease the color cast.
  • the main reason is that the colors leak light, so that the three primary colors leak color mixing will not occur
  • the color that is, the color of the light leakage from the side view is a neutral color.
  • Step S2 of the luminance spatial signal includes: obtaining an adjustment coefficient according to the hue of the first hue color saturation luminance space signal; adjusting the color saturation value of the color saturation signal s according to the adjustment coefficient to obtain a second color saturation signal s';
  • the adjustment coefficient satisfies the following formula:
  • s' a ⁇ s 4 +b ⁇ s 3 +c ⁇ s 2 +d ⁇ s+e; where s is the color saturation signal, and s'is the second color saturation signal; the a, b, c ,d,e are constants.
  • the second color saturation signal s′ is obtained through calculation, and the display panel is driven according to the second color saturation signal, so that the color of the display panel is more vivid, and the color shift problem is effectively improved.
  • the step of obtaining the adjustment coefficient according to the hue of the first hue color saturation luminance space signal includes: dividing the hue H into m hue intervals; and obtaining the adjustment coefficient a(H(m)) according to the hue interval , B(H(m)), c(H(m)), d(H(m)), e(H(m)); among them, the more serious the color shift, the greater the adjustment coefficient; the color saturation
  • the signal s and the second color saturation signal s'(H(m),s) corresponding to the hue interval satisfy the following formula:
  • a(H(m)), b(H(m)), c(H(m)), d(H(m)), e(H(m)) are the adjustment constants of hue interval to saturation.
  • the hue (H) is divided into multiple sections, because different sections have different degrees of color shift, different adjustments to the color saturation are adopted according to different sections, which can increase the color vividness of the display panel and the color shift. The adjustment is more even.
  • FIG. 9 is a color difference change curve diagram of the current color saturation signal and the second color saturation signal according to an embodiment of the present application; wherein, the color difference change diagram of FIG. 9 may be in the case of a positive viewing angle. Of course, it can also be the case of side viewing angle.
  • FIG. 10 is a schematic diagram of the change of the color difference of different colors of the color saturation signal and the second color saturation signal of the embodiment of the present application; when the color saturation is adjusted, the change of the color difference is shown in FIG. 10, and the color difference problem is improved.
  • the hue (H) ranges from 0° to 360° to represent different hue colors, where 0° is defined as red, 120° is green, and 240° Is blue.
  • the step S1 of receiving the first color signal, converting the first color signal into a first luminance normalization signal, and obtaining the first hue color saturation luminance spatial signal according to the first luminance normalization signal includes:
  • the first normalized luminance signal r, g, b is converted into hue h and color saturation signal s
  • the formula is as follows:
  • max represents the maximum value in r/g/b
  • min represents the minimum value in r/g/b.
  • the color saturation value is related to the first brightness normalized signal. When the color saturation signal is increased, the corresponding first brightness normalized signal will also change. In particular, when the first brightness normalized signal is lowered
  • the minimum value is used to increase the color saturation value, the color mixing components other than the main hue are correspondingly adjusted down, so as to obtain the first hue color saturation luminance space signal with higher color purity.
  • the aforementioned gray-scale digital signal includes a red gray-scale digital signal R, a green gray-scale digital signal G, and a blue gray-scale digital signal B; r, g, and b are the red gray-scale digital signal R, the green gray-scale digital signal G and The first normalized signal of brightness corresponding to the blue gray scale digital signal B; ⁇ r, ⁇ g, and ⁇ b are the gamma signals corresponding to the red gray scale digital signal R, the green gray scale digital signal G, and the blue gray scale digital signal B, respectively
  • the step S3 of lowering the minimum value of the first normalized luminance signal according to the second hue color saturation luminance spatial signal to obtain a second normalized luminance signal includes: the first normalized luminance signal includes: The first red luminance normalization signal r, the first green luminance normalization signal g, and the first blue luminance normalization signal b; the second luminance normalization signal includes: the second red luminance normalization signal r' , The second green luminance normalization signal g'
  • the step of obtaining the minimum value of the first luminance normalized signal according to the hue of the second hue color saturation luminance spatial signal includes: when the main hue is red, max is r; determining the first luminance corresponding to green and blue The smaller value of the normalized signals g and b is the minimum value of the first luminance normalized signal; when the main hue is green, max is g; determine the first luminance normalized signals r and g corresponding to red and blue The smaller value is the minimum value of the first brightness normalized signal; when the main hue is blue, max is b; the smaller value of the first brightness normalized signals r and g corresponding to red and green is determined to be the first The minimum value of the normalized luminance signal.
  • the main hue is blue
  • the max in r, g, b is b
  • this solution reduces the impact of light leakage from G and R with large viewing angles on the main color B, reduces visual character deviation, and at the same time increases the color purity of the main color B and improves color vividness; the same is true for other colors.
  • the maximum first brightness normalized signal max is the first green brightness normalized signal g, when increasing the first green brightness normalized signal g
  • the minimum first brightness normalization signal min is reduced. Such adjustment can reduce the magnitude of the reduction of the minimum first brightness normalized signal min, and avoid the normalized brightness imbalance that may be caused when the minimum first brightness normalized signal min is reduced.
  • the second brightness normalized signal r', g', b', the second color signal R', G', B' is calculated backward.
  • the second color signal realizes the reduction of the difference between the front view and the side view color shift The purpose is to effectively improve the color cast and improve the color vividness of the display panel.
  • the color difference ⁇ uv between the color saturation signal and the second color saturation signal satisfies the following formula: Among them, u_1 and v_1 are the chromaticity coordinates of the color saturation signal, and the u_2 and v_2 are the chromaticity coordinates of the second color saturation signal. According to the calculation of the formula, determine the variation range of the purity to avoid excessive adjustment of the saturation and cause other problems. While effectively improving the color cast, the adjustment of the saturation is controlled within a controllable range. Inside.
  • the minimum value of the first normalized signal g and b corresponding to red and blue will be reduced to a greater extent; when the main hue is red or blue At this time, if the minimum value min of the first brightness normalized signal corresponds to green, the minimum decrease of the first brightness normalized signal is small.
  • the present application discloses a driving system 200 of a display panel 300, including: a receiver 210, a divider 220, an adjuster 230, an obtainer 240, and a calculator 250 , A converter 260 and a driver 270;
  • the receiver 210 receives the first color signal, converts the first color signal into a first brightness normalization signal, and converts the first color saturation according to the first brightness normalization signal Luminance space signal;
  • the divider 220 divides the first hue color saturation luminance space signal into six hue, first hue, second hue, third hue, fourth hue, fifth hue and sixth hue according to different hue Interval;
  • the obtainer 230 obtains preset adjustment coefficients, and obtains the hue interval correction value according to the hue interval in which the first hue color saturation luminance space signal is located;
  • the adjuster 240 obtains the first hue color saturation luminance space signal
  • the color saturation signal is adjusted by the adjustment coefficient and the hue interval correction value to obtain the third color saturation signal to obtain the second hue color saturation luminance
  • the present application also discloses a driving method for driving the above-mentioned display panel, including the steps:
  • S21 Receive the first color signal, convert the first color signal into a first normalized brightness signal, and convert according to the first normalized brightness signal to obtain a first hue color saturation brightness (HSV) spatial signal;
  • HSV hue color saturation brightness
  • S22 Divide the first hue color saturation brightness space signal into six hue intervals of the first hue, the second hue, the third hue, the fourth hue, the fifth hue and the sixth hue according to different hue;
  • the color cast is more serious due to the more mixed color components other than the main hue; this application reduces the color mixing ratio by lowering the minimum value in the first brightness normalized signal to improve the color Saturation is to achieve the purpose of improving the purity of the main hue, making the color of the display panel more brilliant; in this way, there is no need to divide the pixels into main and sub-pixels.
  • This solution can improve without sacrificing the aperture ratio of the display panel.
  • the color cast problem of the display panel effectively avoids the decrease of the light transmittance of the display panel; and the color saturation is adjusted by the combination of the adjustment coefficient and the hue interval correction value, so that the color saturation can be adjusted more Targeted and more accurate, the adjustment result is more conducive to improving the picture display effect of the display panel.
  • the color signal can be the three primary color signals of red, green and blue.
  • the first color signal can be the first red, green and blue primary color signal
  • the second color signal may be the second red, green and blue three primary color signals.
  • This application considers all hues from 0° to 360°. When divided evenly, it is divided into six hues of red, green, blue, yellow, cyan and magenta (RGBYMC), corresponding to the first and second hues respectively , The third hue, the fourth hue, the fifth hue and the sixth hue; among them, the three hues of yellow, cyan, and magenta are exactly the mixed color hue of the three primary colors of red, green and blue.
  • RGBYMC red, green, blue, yellow, cyan and magenta
  • H is the hue, representing different hue colors from 0° to 360°, where 0° is defined as red, 120° is green, and 240° is blue.
  • the step S1 of receiving the first color signal, converting the first color signal into a first luminance normalization signal, and obtaining the first hue color saturation luminance spatial signal according to the first luminance normalization signal includes:
  • the color signal input is a gray-scale digital signal;
  • the step of obtaining the color saturation signal of the first hue color saturation luminance spatial signal includes: the first luminance normalization signal conversion
  • the formulas for hue and color saturation are as follows:
  • the first color signal calculates the first luminance normalized signal through a formula, compares the maximum value max and the minimum value min in the first luminance normalized signal, and calculates the hue H and the color saturation signal s through the above formula.
  • the step S25 of reducing the minimum value of the first normalized signal of brightness according to the second hue color saturation brightness spatial signal to obtain the second normalized signal of brightness includes: when the main hue is red, max is r; Determine that the smaller value of the first normalized signal of brightness g and b corresponding to green and blue is the minimum value of the first normalized signal of brightness; when the main hue is green, max is g; determine the corresponding to red and blue The smaller value of the first brightness normalized signal r and g is the minimum value of the first brightness normalized signal; when the main hue is blue, max is b; determine the first brightness normalized signal corresponding to red and green The smaller value of r and g is the minimum value of the first luminance normalized signal.
  • the main hue is blue
  • the max in r, g, b is b
  • this solution reduces the impact of light leakage from G and R with large viewing angles on the main color B, reduces visual character deviation, and at the same time increases the color purity of the main color B and improves color vividness; the same is true for other colors.
  • the constant values a, b, c, d, e can be changed, and the second color saturation signal s'calculated by the formula of the color saturation signal s is also different, so as to realize the color saturation Adaptive adjustment.
  • this solution makes hue correction The closer the value is to the main hue, the greater the hue correction value.
  • the range of coarse adjustment is close to the adjustment target. Therefore, during fine adjustment, the adjustment result of coarse adjustment is hardly changed.
  • the adjustment range of the coarse adjustment is too large. Therefore, multiplying by a smaller hue correction value can ease the adjustment range so as to avoid the loss of color saturation while improving the color cast problem.
  • the adjustment of the color saturation signal is more accurate, and the adjustment of the color saturation signal of different degrees can be realized for the range of the hue interval with different degrees of color shift.
  • the step of calculating the second color saturation signal s'and the color saturation signal s according to the hue interval correction value to obtain the third color saturation signal s" includes:
  • H factor follows the following formula:
  • the division of tones includes six tones that need to be adjusted, as well as non-adjustable tones; the six tones include: first, second, third, fourth, fifth, and Six tones of the sixth hue. Determine whether the hue is within the six hue intervals of the first hue, the second hue, the third hue, the fourth hue, the fifth hue and the sixth hue, and if so, calculate the correction adjustment coefficient according to the adjustment coefficient and the hue interval correction value; If not, do not perform color saturation adjustment; use the adjustment coefficient to adjust the color saturation signal s to obtain the third color saturation signal s"; where the correction adjustment coefficient is obtained by looking up the table.
  • This application increases the color saturation signal s to the second color saturation signal s'when solving the above six hue intervals, and then obtains the third color saturation signal s" through the hue interval correction value, and the hue interval correction value maintains the saturation Improved hue, and the color mixing in the middle of the above six hue intervals, the saturation signal s to s'is not adjusted, the original saturated color is maintained, and the impact on the image quality color is reduced.
  • the color saturation signal s is adjusted to the third color saturation signal s" by the correction adjustment coefficient, so that it is not within the interval range
  • the color saturation signal s there is no need to adjust the color saturation signal s to s'by adjusting the coefficient, which greatly reduces the amount of calculation; and when calculating through the hue interval correction value, there is no need to check whether it is not in the interval. , The color saturation signal s'that has not been adjusted is corrected and adjusted.
  • the hue interval correction value has a different weight coefficient A; when judging the hue interval where the first hue color saturation luminance space signal is located, when it is in the first hue color saturation luminance space signal position
  • the weights to be multiplied by the hue interval correction value are A red , A green , A blue , A yellow , A cyan or A meganta ;
  • the hue interval correction values corresponding to the red hue interval, green hue interval, blue hue interval, yellow hue interval, cyan hue interval or magenta hue interval are H factor ⁇ A red , H factor ⁇ A green , H factor ⁇ A blue , H factor ⁇ A yellow , H factor ⁇ A cyan or H factor ⁇ A meganta , wherein at least the red hue interval correction value H factor ⁇ A red is greater than the green hue interval correction value H factor ⁇ A green ; the weight is based on Get it by looking up the meter. The greater the H factor and the greater the weight A, the greater the value of the hue interval correction value, the greater the adjustment range, and the greater the increase in color saturation corresponding to a certain main hue. Among them, the weight A is changed differently according to different hue.
  • the hue H value of the saturation signal s satisfies the hue interval of the following formula, it is divided into an adjusted hue interval: the hue interval that satisfies the following formula is the red hue interval: 340 ⁇ H, H ⁇ 20; the hue value satisfies the hue interval of the following formula It is the yellow hue interval: 40 ⁇ H ⁇ 80; the hue interval whose hue value satisfies the following formula is the green hue interval: 100 ⁇ H ⁇ 140; the hue interval whose hue value satisfies the following formula is the cyan hue interval: 160 ⁇ H ⁇ 200; The hue interval whose value satisfies the following formula is the blue hue interval: 220 ⁇ H ⁇ 260; the hue interval whose hue value satisfies the following formula is the magenta hue interval: 280 ⁇ H ⁇
  • the hue H value of the current color saturation signal s meets the hue interval of the following formula, it is divided into non-adjusted hue interval: 20 ⁇ H ⁇ 40, 80 ⁇ H ⁇ 100, 140 ⁇ H ⁇ 160, 200 ⁇ H ⁇ 220, 260 ⁇ H ⁇ 280 or 320 ⁇ H ⁇ 340.
  • Hue stands for hue
  • H stands for Hue.
  • the hue Hue value of the saturation signal s satisfies the hue interval of the following formula, it is divided into an adjustment hue interval: when the hue H value of the current color saturation signal s satisfies the hue interval of the following formula, it is divided into an adjustment hue interval: 330 ⁇ H, H ⁇ 30, 30 ⁇ H ⁇ 90, 90 ⁇ H ⁇ 150, 150 ⁇ H ⁇ 210, 210 ⁇ H ⁇ 270 or 270 ⁇ H ⁇ 330.
  • the preset adjustment coefficients a, b, c, d, e, and hue interval correction value H factor are obtained; among them, the hue interval correction value H factor Obtained by the following formula: Among them, max represents the maximum value in r/g/b, and min represents the minimum value in r/g/b; use adjustment coefficients a, b, c, d, e to adjust the color saturation signal s to obtain the second
  • TN Transmission Nematic
  • IPS In-Plane Switching, in-plane switching
  • VA Vertical Alignment, vertical alignment type
  • MVA Multi-Domain Vertical Alignment, multi-quadrant vertical alignment type
  • OLED Organic Light-Emitting Diode, organic light-emitting diode

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Abstract

一种显示面板的驱动方法、驱动系统和显示装置。驱动方法包括步骤：接收第一色彩信号，将第一色彩信号转换成第一亮度归一化信号，根据第一亮度归一化信号转换得到第一色调饱和度亮度空间信号（S1）；获取第一色调色饱和度亮度空间信号的色饱和度信号，调高色饱和度信号的色饱和度值，获得第二色调色饱和度亮度空间信号（S2）；根据第二色调色饱和度亮度空间信号调低第一亮度归一化信号中的最小值，得到第二亮度归一化信号（S3）；根据第二亮度归一化信号转换得到第二色彩信号（S4）；使用第二色彩信号驱动显示面板（S5）。

Description

显示面板的驱动方法、驱动系统和显示装置
本申请要求于2019年4月8日提交中国专利局，申请号为CN201910275101.2，申请名称为“一种显示面板的驱动方法、驱动系统和显示装置”的中国专利申请的优先权，及于2019年4月8日提交中国专利局，申请号为CN201910275213.8，申请名称为“一种显示面板的驱动方法、驱动系统和显示装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及显示技术领域，尤其涉及一种显示面板的驱动方法、驱动系统和显示装置。
背景技术
这里的陈述仅提供与本申请有关的背景信息，而不必然地构成现有技术。
随着科技的发展和进步，液晶显示器由于具备机身薄、省电和辐射低等热点而成为显示器的主流产品，得到了广泛应用。液晶显示器大部分为背光型液晶显示器，其包括液晶面板及背光模组(Backlight Module)。液晶面板的工作原理是在两片平行的玻璃基板当中放置液晶分子，并在两片玻璃基板上施加驱动电压来控制液晶分子的旋转方向，以将背光模组的光线折射出来产生画面。
大尺寸液晶显示面板多半采用VA(Vertical Alignment，垂直配向)液晶技术或IPS(In-Plane switching，平面转换)液晶技术，VA型液晶技术相较于IPS液晶技术存在较高的生产效率及低制造成本得优势，但光学性质上相较于IPS液晶技术存在较明显得光学性质缺陷；即一些大尺寸显示面板，特别是VA型液晶驱动在大视角下存在色偏问题。
发明内容
本申请的目的是提供一种显示面板的驱动方法、驱动系统和显示装置，有效的改善了显示面板色偏的情况。
本申请公开了一种显示面板的驱动方法,包括步骤：
接收第一色彩信号，将第一色彩信号转换成第一亮度归一化信号，根据第一亮度归一化信号转换得到第一色调色饱和度亮度空间信号；
获取第一色调色饱和度亮度空间信号的色饱和度信号，调高色饱和度信号的色饱和度值，得到第二色饱和度信号，以获得第二色调色饱和度亮度空间信号；
根据第二色调色饱和度亮度空间信号调低第一亮度归一化信号中的最小值，以得到第二亮度归一化信号；
根据第二亮度归一化信号转换得到第二色彩信号；以及
使用第二色彩信号驱动显示面板。
本申请还公开了一种显示面板的驱动系统，使用上述的显示面板的驱动方法包括接收器、调整器、计算器、转换器和驱动器；所述接收器接收第一色彩信号，将第一色彩信号转换成第一亮度归一化信号，根据第一亮度归一化信号转换得到第一色调色饱和度亮度空间信号；所述调整器获取第一色调色饱和度亮度空间信号的色饱和度信号，调高色饱和度信号的色饱和度值，得到第二色饱和度信号，以获得第二色调色饱和度亮度空间信号；所述计算器根据第二色调色饱和度亮度空间信号调低第一亮度归一化信号中的最小值，以得到第二亮度归一化信号；所述转换器根据第二亮度归一化信号转换得到第二色彩信号；所述驱动器使用 第二色彩信号驱动显示面板。
本申请还公开了一种显示装置，包括上述的显示面板的驱动系统和所述驱动系统驱动的显示面板。
在RGB色系下，由于主色调以外的混色的成分较多，使得色偏较为严重；本申请通过调低第一亮度归一化信号中的最小值，来减少混色的比例，来达到提高色饱和度的目的；如此可以提高主色调的纯度，如此可以减弱显示面板的色偏问题，同时使显示面板的色彩更加艳丽，本方案不牺牲显示面板的开口率，有效的避免了显示面板的透光率降低的情况发生。
附图说明
所包括的附图用来提供对本申请实施例的进一步的理解，其构成了说明书的一部分，用于例示本申请的实施方式，并与文字描述一起来阐释本申请的原理。显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。在附图中：
图1是液晶显示面板中各种代表性色系的大视角与正视视角色偏变化示意图；
图2是不区分主次像素和区别主次像素的第一对比示意图；
图3是不区分主次像素和区别主次像素的第二对比示意图；
图4是本申请的一实施例的一种显示装置的示意图；
图5是本申请的一实施例的一种显示面的驱动系统的示意图
图6是本申请的一实施例的一种显示面板的驱动方法的流程图；
图7是本申请的一实施例的色饱和度信号和第二色饱和度信号变化的示意图；
图8是本申请的另一实施例的色饱和度信号和第二色饱和度信号变化的示意图；
图9是本申请的一实施例的色饱和度信号和第二色饱和度信号的色差的变化示意图；
图10是本申请的另一实施例的色饱和度信号和第二色饱和度信号的不同颜色的色差的变化示意图；
图11是本申请的一实施例的一种色调表达示意图；
图12本申请的一实施例的一种显示面的驱动系统的示意图；
图13本申请的一实施例的一种显示面板的驱动方法的流程图；
图14本申请的一实施例的色调与色调区间修正值的变化的示意图；
图15是本申请的另一实施例的色调与色调区间修正值的变化的示意图。
具体实施方式
下面参考附图和可选的实施例对本申请作详细说明。
大尺寸显示面板多采用负型VA(Vertical Alignment，垂直取向)液晶或IPS(In-plane Switch，平面转换)液晶技术，VA型液晶技术相较于IPS液晶技术存在较高的生产效率及低制造成本得优势，但光学性质上相较于IPS液晶技术存在较明显得光学性质缺陷，尤其是大尺寸面板在商业应用方面需要较大的视角呈现。
图1是显示面板中各种代表性色系的大视角与正视视角色偏变化示意图；如图1当色调接近R(红)、G(绿)、B(蓝)纯色调时，存在视角观赏的色偏劣化较为明显，同时当色调接近R、G、B纯色调时，色偏现象越发明显，其原因为R、G、B纯色调存在其它颜色的成分。
示范性的解决方案是将RGB各子像素再划分为主次(Main/Sub)像素，使得整体大视角亮度随电压变化较为接近正视。图2是不区分主次像素和区别主次像素的第一对比示意图，图3是不区分主次像素和区别主次像素的第二对比示意图，参考图2和图3可知，其中，x坐标，y坐标和z坐标，分别代表三维空间的三个方向；θA表示其中主像素大电压下的预 倾导角，θB表示其中次像素小电压下的预倾导角。其中，该图3中的横坐标为灰阶信号，而纵坐标为亮度信号，在大视角下，亮度随信号快速饱和，造成大视角色偏问题(图3，左侧的弧线段)，而区分主次像素可以在一定程度上改善这一问题。
液晶显示器中高电压侧视角电压对应亮度变化比例更容易趋于饱和，所以将原信号分成大电压加小电压信号可以看到如图3，正视大电压加上小电压要维持原正视信号随亮度变化,大电压看到的侧视亮度随灰阶变化如图3中Part A(A部分)，小电压看到的侧视亮度随灰阶变化如图3中Part B(B部分),这样侧视合成看起来的亮度随灰阶变化就较为贴近正视亮度随灰阶变化的关系,所以视角亮度随信号变化关系接近正视原信号亮度随信号变化,使得视角获得改善。
这种藉由空间上主次像素给予不同的驱动电压来解决视角色偏得缺陷，这样得像素设计往往需要再设计金属走线或TFT(Thin Film Transistor，薄膜晶体管)元件来驱动次像素，造成可透光开口区牺牲，影响面板穿透率，直接造成背光成本的提升。
如图4所示，作为本申请的一实施例，公开了一种显示装置100，包括显示面板的驱动系统200和显示面板300。
如图5所示，作为本申请的一实施例，公开了一种显示面板的驱动系统200包括接收器210、调整器230、计算器250、转换器260和驱动器270；所述接收器210接收第一色彩信号，将第一色彩信号转换成第一亮度归一化信号，根据第一亮度归一化信号转换得到第一色调色饱和度亮度空间信号；所述调整器230获取第一色调色饱和度亮度空间信号的色饱和度信号，调高色饱和度信号的色饱和度值，得到第二色饱和度信号，以获得第二色调色饱和度亮度空间信号；所述计算器250根据第二色调色饱和度亮度空间信号调低第一亮度归一化信号中的最小值，以得到第二亮度归一化信号；所述转换器260根据第二亮度归一化信号转换得到第二色彩信号；所述驱动器270使用第二色彩信号驱动显示面板300。
对应的，图6是本申请的一种显示面板的驱动方法的流程图，如图6所示，本申请公开了一种显示面板的驱动方法，包括步骤：
S1：接收第一色彩信号，将第一色彩信号转换成第一亮度归一化信号，根据第一亮度归一化信号转换得到第一色调色饱和度亮度(HSV，Hue,saturation,Value)空间信号；
S2：获取第一色调色饱和度亮度空间信号的色饱和度信号，调高色饱和度信号的色饱和度值，得到第二色饱和度信号，以获得第二色调色饱和度亮度空间信号；
S3：根据第二色调色饱和度亮度空间信号调低第一亮度归一化信号中的最小值，以得到第二亮度归一化信号；
S4：根据第二亮度归一化信号转换得到第二色彩信号；
S5：使用第二色彩信号驱动显示面板。
在RGB色系下，由于主色调以外的混色的成分较多，使得色偏较为严重；本申请通过调低第一亮度归一化信号中的最小值，来减少混色的比例，来达到提高色饱和度的目的；如此可以提高主色调的纯度，减弱显示面板的色偏问题，同时使显示面板的色彩更加艳丽，本方案不牺牲显示面板的开口率，有效的避免了显示面板的透光率降低的情况发生。具体的，以红色为例，当色调接近红色纯色色调时，存在视角观赏的色偏劣化较为明显，可以透过降低红色纯色色调中亮度归一化信号最小的颜色的亮度归一化信号，实现提升红色纯色色调中主色调的色饱和度的目的，减少了以红色为主色调的色调中其他颜色(绿色和蓝色)的混色，让大视角漏光颜色接近正看原色调，正视和侧视色偏的问题得以解决，其中，第一色彩信号可以为红绿蓝三原色信号。具体的第二色彩信号可以为第二红绿蓝三原色信号。
另外，同样以红色为例，在红色纯色色调中，红色为主色调；本申请也可以通过调高 在红色纯色色调中的其他颜色的亮度归一化信号中的最小亮度归一化信号，从而降低了以红色为主色调的色饱和度；如此会使得混色接近白色中性色，中性色的色偏会达到色偏下降主要是因为让色彩都漏光，这样三原色漏光颜色混合就不会产生颜色，也就是正侧视漏光颜色为中性色。
如图7所示，所述获取第一色调色饱和度亮度空间信号的色饱和度信号，调高色饱和度信号的色饱和度值，得到第二色饱和度信号以获得第二色调色饱和度亮度空间信号的步骤S2包括：根据第一色调色饱和度亮度空间信号的色调获取调整系数；根据调整系数调整色饱和度信号s的色饱和度值，得到第二色饱和度信号s’；所述调整系数满足如下公式：
s'＝a×s 4+b×s 3+c×s 2+d×s+e；其中，s为色饱和度信号，s’为第二色饱和度信号；所述a,b,c,d,e为常数。通过计算得到第二色饱和度信号s’，根据第二色饱和度信号驱动显示面板，使得显示面板的颜色更为鲜艳，且色偏问题得以有效改善。
如图8所示，所述根据第一色调色饱和度亮度空间信号的色调获取调整系数的步骤包括：将色调H分为m个色调区间；根据色调区间获得调整系数a(H(m))、b(H(m))、c(H(m))、d(H(m))、e(H(m))；其中，色偏越严重的调整系数越大；所述色饱和度信号s和色调区间对应的第二色饱和度信号s’(H(m),s)满足如下公式：
Figure PCTCN2020078415-appb-000001
其中，a(H(m))、b(H(m))、c(H(m))、d(H(m))、e(H(m))为色调区间对饱和度调整常数。将色调(H)划分为多个区间后，因为不同的区间，色偏程度不同，所以根据不同的区间对色饱和度采用不同的调整，可以使得显示面板的色彩鲜艳度提升的同时，色偏的调整更加均匀。
图9是本申请实施例的当前色饱和度信号和第二色饱和度信号的色差变化曲线图；其中，该图9的色差变化图，可以是正视角情况下的。当然，也可以是侧视角情况下的。图10是本申请实施例的色饱和度信号和第二色饱和度信号的不同颜色的色差的变化示意图；当色饱和度调整后，色差的变化如图10所示，色差问题得以改善。
参考图11，根据CIE(Commission Internationale de L'Eclairage，国际照明委员会)HSV定义，色调(H)由0°～360°代表不同色相颜色，其中定义0°为红色，120°为绿色，240°为蓝色。所述接收第一色彩信号，将第一色彩信号转换成第一亮度归一化信号，根据第一亮度归一化信号转换得到第一色调色饱和度亮度空间信号的步骤S1包括：将第一色彩信号输入为灰阶数位信号R、G、B；根据灰阶数位信号转换得到第一亮度归一化信号r、g、b；其中r＝(R/255)^γr、g＝(G/255)^γg、b＝(B/255)^γb，其中γr、γg、γb为伽马信号；将第一亮度归一化信号r、g、b转换成色调h及色饱和度信号s的公式如下：
Figure PCTCN2020078415-appb-000002
Figure PCTCN2020078415-appb-000003
其中，max表示r/g/b中的最大值，min表示r/g/b中的最小值。色饱和度值与第一亮度归一化信号相关，当提升色饱和度信号时，对应的第一亮度归一化信号也会改变，特别的，当通过调低第一亮度归一化信号的最小值来提高色饱和度值时，则对应将主色调以外的混色成分进行了调低，从而得到色纯度更高的第一色调色饱和度亮度空间信号。上述的灰阶数位信号包括红色灰阶数位信号R、绿色灰阶数位信号G和蓝色灰阶数位信号B；r、g、b分别为红色灰阶数位信号R、绿色灰阶数位信号G和蓝色灰阶数位信号B对应的第一亮度归一化信号；γr、γg、γb分别为红色灰阶数位信号R、绿色灰阶数位信号G和蓝色灰阶数位信号B对应的伽马信号；所述根据第二色调色饱和度亮度空间信号调低第一亮度归一化信号中的最小值，以得到第二亮度归一化信号的步骤S3包括：第一亮度归一化信号包括：第一红色亮度归一化信号r，第一绿色亮度归一化信号g和第一蓝色亮度归一化信号b；第二亮度归一化信号包括：第二红色亮度归一化信号r’，第二绿色亮度归一化信号g’和第二蓝色亮度归一化信号b’；根据第二色调色饱和度亮度空间信号的色调，获取第一红色亮度归一化信号r、第一绿色亮度归一化信号g和第一蓝色亮度归一化信号b中的最小值min；根据色饱和度信号s和第二色饱和度信号s’，调低第一红色亮度归一化信号r、第一绿色亮度归一化信号g和第一蓝色亮度归一化信号b中的最小值min，得到调整后的最小值min’，以获得第二红色亮度归一化信号r’，第二绿色亮度归一化信号g’和第一蓝色亮度归一化信号b’。
所述根据第二色调色饱和度亮度空间信号的色调，获取第一亮度归一化信号的最小值的步骤包括：当主色调为红色时，max为r；确定绿色和蓝色对应的第一亮度归一化信号g和b中较小值为第一亮度归一化信号的最小值；当主色调为绿色时，max为g；确定红色和蓝色对应的第一亮度归一化信号r和g中较小值为第一亮度归一化信号的最小值；当主色调为蓝色时，max为b；确定红色和绿色对应的第一亮度归一化信号r和g中较小值为第一亮度归一化信号的最小值。详细来说，例如，当主色调为蓝色时，则可以判定r，g，b中的max为b，因而不需要额外计算max，而只需要计算r和g的较小值作为min即可，从而在减少计算量的情况下，调低min以减少混色的成分，从而减少显示面板正视和侧视的色偏；B色调存在部分的G、R颜色成分，G、R成份大视角的漏光量相较于正视角较为明显，使得混色后的B主色调产生色偏。本方案通过降低G、R颜色成分，降低大视角G、R漏光对于主色调B的影响，减少视角色偏，同时让B主色调色纯度提升，提高色彩鲜艳度；其他颜色同理。
通过s’＝1-min/max，当绿色为主色调时，最大第一亮度归一化信号max为第一绿色亮度归一化信号g，在增大第一绿色亮度归一化信号g的同时，减小最小第一亮度归一化信号min。如此调整可以使得最小第一亮度归一化信号min减小的幅度少些，而避免在减小最小 第一亮度归一化信号min时，可能会造成的归一化亮度失衡。
所述根据第二亮度归一化信号转换得到第二色彩信号的步骤S4包括：根据如下的计算公式，将第二亮度归一化信号转换得到第二色彩信号：R’＝255×(r’) 1/γr、G’＝255×(g’) 1/γg、B’＝255×(b’) 1/γb；其中，r’，g’和b’为第二亮度归一化信号；R’，G’，B’为第二色彩信号。根据第二亮度归一化信号r’、g’、b’而反向推算出第二色彩信号R’、G’、B’，第二色彩信号实现了缩小正视与侧视颜色偏的差异的目的，有效的改善了色偏，同时提升显示面板的色彩鲜艳度。
所述根据调整系数调整色饱和度信号s的色饱和度值，得到第二色饱和度信号s’的步骤中：色饱和度信号和第二色饱和度信号的色差Δuv满足如下公式：
Figure PCTCN2020078415-appb-000004
其中，u_1和v_1是色饱和度信号的色度坐标，该u_2和v_2是第二色饱和度信号的色度坐标。根据公式的计算，确定纯度的变化范围，避免对饱和度调整的幅度过大，而引起其他的问题，在有效改善色偏问题的同时，将对饱和度调整的幅度控制在可控的范围之内。
由图1可知，接近绿色纯色色调的三原色信号的色偏明显小于红色调和蓝色调的色偏，故：
在同样的色饱和度值前提下，当主色调为绿色的时候，红色和蓝色对应的第一亮度归一化信号g和b中最小值的降低程度较大；当主色调为红色或者蓝色的时候，如果第一亮度归一化信号的最小值min对应的为绿色时，第一亮度归一化信号的最小值降低程度较小。
作为本申请的另一实施例，如图12所示，本申请公开了一种显示面板300的驱动系统200，包括：接收器210、划分器220、调整器230、获取器240、计算器250、转换器260和驱动器270；所述接收器210接收第一色彩信号，将第一色彩信号转换成第一亮度归一化信号，根据第一亮度归一化信号转换得到第一色调色饱和度亮度空间信号；所述划分器220将第一色调色饱和度亮度空间信号根据色调不同划分为第一色调、第二色调、第三色调、第四色调、第五色调和第六色调六种色调区间；所述获取器230获取预设的调整系数，根据第一色调色饱和度亮度空间信号所处的色调区间获得色调区间修正值；所述调整器240获取第一色调色饱和度亮度空间信号的色饱和度信号，使用调整系数和色调区间修正值对色饱和度信号进行调整，获得第三色饱和度信号以得到第二色调色饱和度亮度空间信号；所述计算器250根据第二色调色饱和度亮度空间信号调低第一亮度归一化信号中的最小值，以得到第二亮度归一化信号；所述转换器260根据第二亮度归一化信号转换得到第二色彩信号；所述驱动器270使用第二色彩信号驱动显示面板100。
对应的，如图13所示，本申请还公开了一种驱动上述显示面板的驱动方法，包括步骤：
S21：接收第一色彩信号，将第一色彩信号转换成第一亮度归一化信号，根据第一亮度归一化信号转换得到第一色调色饱和度亮度(HSV)空间信号；
S22：将第一色调色饱和度亮度空间信号根据色调不同划分为第一色调、第二色调、第三色调、第四色调、第五色调和第六色调六种色调区间；
S23：获取预设的调整系数，根据第一色调色饱和度亮度空间信号所处的色调区间获得色调区间修正值；
S24：获取第一色调色饱和度亮度空间信号的色饱和度信号，色饱和度信号s全部根据调整系数，计算获得第二色饱和度信号s’；第二色饱和度信号s’和色饱和度信号s根据色调区间修正值计算得到第三色饱和度信号s”，使用调整系数和色调区间修正值对色饱和度 信号进行调整，获得第三色饱和度信号以得到第二色调色饱和度亮度空间信号；
S25：根据第二色调色饱和度亮度空间信号调低第一亮度归一化信号中的最小值，以得到第二亮度归一化信号；
S26：根据第二亮度归一化信号转换得到第二色彩信号；
S27：使用第二色彩信号驱动显示面板。
在RGB色系下，由于主色调以外的混色的成分较多，使得色偏较为严重；本申请通过调低第一亮度归一化信号中的最小值，来减少混色的比例，来达到提高色饱和度，即达到提高主色调的纯度的目的，使得显示面板的色彩更加艳丽；如此可以无需将画素分为主画素及次画素，本方案可以在不牺牲显示面板的开口率的前提下，改善显示面板的色偏问题，有效的避免了显示面板的透光率降低的情况发生；而使用调整系数与色调区间修正值的结合的方案对色饱和度进行调整，使得色饱和度的调整可以更有针对性，更加准确，使得调整的结果更有利于提高显示面板的画面显示效果，其中，色彩信号可以为红绿蓝三原色信号，具体的，第一色彩信号可以为第一红绿蓝三原色信号，第二色彩信号可以为第二红绿蓝三原色信号。
本申请考虑了0°～360°的全部色调，当均匀分割时，即分割为红色、绿色、蓝色、黄色、青色和洋红(RGBYMC)这六种色调，分别对应第一色调、第二色调、第三色调、第四色调、第五色调和第六色调；其中黄色，青色，洋红这三种色调分别恰为红色、绿色、蓝色三原色中取两种色调的混色色调。
如图11所示，H为色调，由0°～360°代表不同色相颜色呈现，其中定义0°为红色，120°为绿色，240°为蓝色。所述接收第一色彩信号，将第一色彩信号转换成第一亮度归一化信号，根据第一亮度归一化信号转换得到第一色调色饱和度亮度空间信号的步骤S1包括：将第一色彩信号输入为灰阶数位信号；根据灰阶数位信号转换得到第一亮度归一化信号r、g、b；其中，r＝(R/255)^γr、g＝(G/255)^γg、b＝(B/255)^γb，γr、γg、γb为伽马信号；获取第一色调色饱和度亮度空间信号的色饱和度信号的步骤包括：所述第一亮度归一化信号转化为色调和色饱和度的公式如下：
Figure PCTCN2020078415-appb-000005
Figure PCTCN2020078415-appb-000006
其中，max表示r/g/b中的最大值，min表示r/g/b中的最小值。第一色彩信号通过公式计算出第一亮度归一化信号，比较得到第一亮度归一化信号中的最大值max和最小值min，通过上述公式计算出色调H和色饱和度信号s。
所述根据第二色调色饱和度亮度空间信号调低第一亮度归一化信号中的最小值，以得到第二亮度归一化信号的步骤S25包括：当主色调为红色时，max为r；确定绿色和蓝色对应的第一亮度归一化信号g和b中较小值为第一亮度归一化信号的最小值；当主色调为绿色时，max为g；确定红色和蓝色对应的第一亮度归一化信号r和g中较小值为第一亮度归一化信 号的最小值；当主色调为蓝色时，max为b；确定红色和绿色对应的第一亮度归一化信号r和g中较小值为第一亮度归一化信号的最小值。详细来说，例如，当主色调为蓝色时，则可以判定r，g，b中的max为b，因而不需要额外计算max，而只需要计算r和g的较小值作为min即可，从而在减少计算量的情况下，调低min以减少混色的成分，从而减少显示面板正视和侧视的色偏；B色调存在部分的G、R颜色成分，G、R成份大视角的漏光量相较于正视角较为明显，使得混色后的B主色调产生色偏。本方案通过降低G、R颜色成分，降低大视角G、R漏光对于主色调B的影响，减少视角色偏，同时让B主色调色纯度提升，提高色彩鲜艳度；其他颜色同理。
如图7所示，所述色饱和度信号s全部根据调整系数，计算获得第二色饱和度信号s’的步骤包括：色饱和度信号s通过计算获得第二色饱和度信号s’满足如下公式：s’＝a×s 4+b×s 3+c×s 2+d×s+e；其中，s为色饱和度信号，s’为第二色饱和度信号；所述a,b,c,d,e为调整系数，且为常数。根据色调的不同，常数值a,b,c,d,e可以有所变化，进而色饱和度信号s通过公式计算出的第二色饱和度信号s’也有所差别，实现对色饱和度的适应性调整。
如图14所示，所述第二色饱和度信号s’和色饱和度信号s根据色调区间修正值计算得到第三色饱和度信号s”的步骤包括：第二色饱和度信号s’和色饱和度信号s根据如下公式计算得到第三色饱和度信号s”：s”＝s+(s’-s)×H factor；其中，s为色饱和度信号，s’为第二色饱和度信号，s”为第三色饱和度信号，H factor遵循如下公式：
Figure PCTCN2020078415-appb-000007
色饱和度信号s转化为第二色饱和度信号s’后，已完成粗调整，而由于在同一个色调区间内，其实越靠近主色调，色偏问题越严重，因而，本方案使得色调修正值越靠近主色调，则色调修正值越大，此时，粗调整的幅度接近调整目标，因而细调整时，几乎不改变粗调整的调整结果；而对应的，当HSV色彩空间的色偏问题很轻时，粗调整的调整幅度过大，因而，乘以一个较小的色调修正值，可以将其调整幅度缓和，以在改善色偏问题的情况下，尽量避免色饱和度的损失从而使得对色饱和度信号的调整更加精确，可以实现针对色偏程度不同的色调区间范围实现不同程度的色饱和度信号的调整。
如图15所示，在一实施例中，所述第二色饱和度信号s’和色饱和度信号s根据色调区间修正值计算得到第三色饱和度信号s”的步骤包括：第二色饱和度信号s’和色饱和度信号s根据如下公式计算得到第三色饱和度信号s”：s”＝s+(s’-s)×H factor；其中，s为色饱和度信号，s’为第二色饱和度信号，s”为第三色饱和度信号，H factor遵循如下公式：
Figure PCTCN2020078415-appb-000008
色饱和度信号s转化为第二色饱和度信号s’后，为使得对色饱和度信号的调整更加精确，可以实现针对色偏程度不同的色调区间范围实现不同程度的色饱和度信号的调整，根据色调区间修正值H factor使得s’进一步转化为s”，从而实现针对色偏程度不同的精确调整。
色调的划分区间，包括六个需要进行调整的色调区间以外，还包括非调整色调区间；其中六个色调区间包括：第一色调、第二色调、第三色调、第四色调、第五色调和第六色调六 种色调区间。判断色调是否处于第一色调、第二色调、第三色调、第四色调、第五色调和第六色调六种色调区间内，若是，则根据调整系数和色调区间修正值计算得到修正调整系数；若否，则不进行色饱和度调整；使用调整系数对色饱和度信号s进行调整得到第三色饱和度信号s”；其中，修正调整系数是查表得到的。
本申请在解决上述六种色调区间的时候提高色饱和度信号s到第二色饱和度信号s’，再通过色调区间修正值得到第三色饱和度信号s”，色调区间修正值维持饱和度提高的色调，而上述六种色调区间中间的混色，则不调整饱和度信号s到s’，维持原饱和色，减少对画质颜色的影响。
通过先判断色调区间，再将调整系数与色调区间修正值进行运算得到修正调整系数，而后将色饱和度信号s通过修正调整系数调整为第三色饱和度信号s”，如此对于不在区间范围内的色饱和度信号s来说，则不需要进行色饱和度信号s通过调整系数调整为s’这一步，大大减少计算量；并且在通过色调区间修正值运算的时候也不需要对不在区间内，未进行过调整的色饱和度信号s’进行修正调整。本方案具体实施举例为：假设调整系数为1.1，红色色调区间的修正值为0.8，那么对于处于红色色调区间内的色饱和度信号s来说，优先计算出修正调整系数为：1.1×0.8＝0.88，而后将修正调整系数与色饱和度信号s进行运算，从而得到第三色饱和度信号s”。
在不同的色调区间下，色调区间修正值分别具有一个不同的权重系数A；当判断第一色调色饱和度亮度空间信号所处的色调区间，当到处于第一色调色饱和度亮度空间信号所处的色调区间分别为红色色调区间、绿色色调区间、蓝色色调区间、黄色色调区间、青色色调区间或洋红色调区间时，色调区间修正值所需要乘的权重分别为A red、A green、A blue、A yellow、A cyan或A meganta；
对应红色色调区间、绿色色调区间、蓝色色调区间、黄色色调区间、青色色调区间或洋红色调区间的色调区间修正值为H factor×A red、H factor×A green、H factor×A blue、H factor×A yellow、H factor×A cyan或H factor×A meganta，其中，至少所述红色色调区间修正值H factor×A red大于所述绿色色调区间修正值H factor×A green；权重是根据查表得到的。H factor越大，且权重A越大时，色调区间修正值的数值越大，则调整的幅度越大，使得对应某一种主色调的色饱和度的提升幅度越大。其中，权重A是根据色调的不同而进行不同的改变。根据图1可直观看出红色纯色色调的色偏明显大于绿色色调的色偏，本方案中红色色调区间修正值大于绿色色调区间修正值，可以对红色色调进行比绿色色调更大幅度的调整，使得两种颜色色调的色偏程度在改善的同时趋近一致。
如图14所示，色调的函数是以R Hue＝0、Y Hue＝60、G Hue＝120、C Hue＝180、B Hue＝240及M Hue＝300为中心的向外递减函数；当前色饱和度信号s的色调H值满足如下公式的色调区间时，划分为调整色调区间：色调满足如下公式的色调区间为红色色调区间：340≤H,H≤20；色调值满足如下公式的色调区间为黄色色调区间：40≤H≤80；色调值满足如下公式的色调区间为绿色色调区间：100≤H≤140；色调值满足如下公式的色调区间为青色色调区间：160≤H≤200；色调值满足如下公式的色调区间为蓝色色调区间：220≤H≤260；色调值满足如下公式的色调区间为洋红色调区间：280≤H≤320。
当前色饱和度信号s的色调H值满足如下公式的色调区间时，划分为非调整色调区间：20<H<40、80<H<100、140<H<160、200<H<220、260<H<280或320<H<340。根据函数公式：
Figure PCTCN2020078415-appb-000009
当R Hue＝0、Y Hue＝60、G Hue＝120、C Hue＝180、 B Hue＝240或M Hue＝300时，H factor＝1。其中，Hue表示色调，H表示Hue的简写。
如图15所示，色调的函数是以R Hue＝0、Y Hue＝60、G Hue＝120、C Hue＝180、B Hue＝240及M Hue＝300为中心的向外递减函数；当前色饱和度信号s的色调Hue值满足如下公式的色调区间时，划分为调整色调区间：当前色饱和度信号s的色调H值满足如下公式的色调区间时，划分为调整色调区间：330＜H,H≤30、30＜H≤90、90＜H≤150、150＜H≤210、210＜H≤270或270＜H≤330。根据函数公式：
Figure PCTCN2020078415-appb-000010
当R Hue＝0、Y Hue＝60、G Hue＝120、C Hue＝180、B Hue＝240或M Hue＝300时，H factor＝1。其中，Hue表示色调，H表示Hue的简写。
如图9和图10所示，根据第二饱和度信号反推出第二亮度归一化信号；再将第二亮度归一化信号转化为第二色彩信号，公式如下：R’＝255×(r’) 1/γr、G’＝255×(g’) 1/γg、B’＝255×(b’) 1/γb，第二色彩信号驱动显示面板。
本申请还公开了另一实施例，接收红绿蓝三原色信号R,G,B，将红绿蓝三原色信号R,G,B根据公式：r＝(R/255)^γr、g＝(G/255)^γg、b＝(B/255)^γb，转换成第一亮度归一化信号r,g,b，其中，γr、γg、γb为伽马信号；根据第一亮度归一化信号r,g,b转换得到第一色调色饱和度亮度空间信号；
将第一色调色饱和度亮度空间信号根据色调的不同将色调划分为六种色调区间，即红色色调区间：340<H,H<20、绿色色调区间：100<H<140、蓝色色调区间220<H<260、黄色色调区间40<H<80、青色色调区间160<H<200和洋红色调区间：280<H<320；根据色调区间的不同，通过如下公式计算，获取第一色调色饱和度亮度空间信号的色饱和度信号s：
Figure PCTCN2020078415-appb-000011
Figure PCTCN2020078415-appb-000012
根据第一色调色饱和度亮度空间信号的色调所处的色调区间，获取预设的调整系数a,b,c,d,e，和色调区间修正值H factor；其中，色调区间修正值H factor通过如下公式获得：
Figure PCTCN2020078415-appb-000013
其中，max表示r/g/b中的最大值，min表示r/g/b中的最小值；使用调整系数a,b,c,d,e 对色饱和度信号s进行调整，获得第二色饱和度信号s’，公式如下：s’＝a×s 4+b×s 3+c×s 2+d×s+e；通过色调区间修正值H factor对色饱和度信号s进行调整，获得第三色饱和度信号s”，公式如下：s”＝s+(s’-s)×H factor，进而得到第二色调色饱和度亮度空间信号；
根据第二色调色饱和度亮度空间信号调低第一亮度归一化信号中的最小值，以得到第二亮度归一化信号r’、g’、b’；第二亮度归一化信号r’、g’、b’根据公式：R’＝255×(r’) 1/γr、G’＝255×(g’) 1/γg、B’＝255×(b’) 1/γb转换为第二红绿蓝三原色信号R’、G’、B’；使用第二红绿蓝三原色信号R’、G’、B’驱动显示面板。
需要说明的是，本方案中涉及到的各步骤的限定，在不影响具体方案实施的前提下，并不认定为对步骤先后顺序做出限定，写在前面的步骤可以是在先执行的，也可以是在后执行的，甚至也可以是同时执行的，只要能实施本方案，都应当视为属于本申请的保护范围。
本申请的技术方案可以广泛用于各种显示面板，如TN(Twisted Nematic，扭曲向列型)显示面板、IPS(In-Plane Switching，平面转换型)显示面板、VA(Vertical Alignment，垂直配向型)显示面板、MVA(Multi-Domain Vertical Alignment，多象限垂直配向型)显示面板，当然，也可以是其他类型的显示面板，如OLED(Organic Light-Emitting Diode，有机发光二极管)显示面板，均可适用上述方案。
以上内容是结合具体的可选实施方式对本申请所作的进一步详细说明，不能认定本申请的具体实施只局限于这些说明。对于本申请所属技术领域的普通技术人员来说，在不脱离本申请构思的前提下，还可以做出若干简单推演或替换，都应当视为属于本申请的保护范围。

Claims (20)

  1. 一种显示面板的驱动方法，包括步骤：
    接收第一色彩信号，将第一色彩信号转换成第一亮度归一化信号，根据第一亮度归一化信号转换得到第一色调色饱和度亮度空间信号；
    获取第一色调色饱和度亮度空间信号的色饱和度信号，调高色饱和度信号的色饱和度值，得到第二色饱和度信号，以获得第二色调色饱和度亮度空间信号；
    根据第二色调色饱和度亮度空间信号调低第一亮度归一化信号中的最小值，以得到第二亮度归一化信号；
    根据第二亮度归一化信号转换得到第二色彩信号；以及
    使用第二色彩信号驱动显示面板。
  2. 如权利要求1所述的一种显示面板的驱动方法，其中，所述获取第一色调色饱和度亮度空间信号的色饱和度信号，调高色饱和度信号的色饱和度值，得到第二色饱和度信号，以获得第二色调色饱和度亮度空间信号的步骤包括：
    根据第一色调色饱和度亮度空间信号的色调获取调整系数；以及
    根据调整系数调整色饱和度信号s的色饱和度值，得到第二色饱和度信号s’；
    所述调整系数满足如下公式：
    s’＝a×s 4+b×s 3+c×s 2+d×s+e；
    其中，s为色饱和度信号，s’为第二色饱和度信号；所述a,b,c,d,e为常数。
  3. 如权利要求1所述的一种显示面板的驱动方法，其中，所述接收第一色彩信号，将第一色彩信号转换成第一亮度归一化信号，根据第一亮度归一化信号转换得到第一色调色饱和度亮度空间信号的步骤包括：
    将第一色彩信号输入为灰阶数位信号R、G、B；以及
    根据灰阶数位信号转换得到第一亮度归一化信号r、g、b；
    其中r＝(R/255)^γr、g＝(G/255)^γg、b＝(B/255)^γb，其中γr、γg、γb为伽马信号；
    将第一亮度归一化信号r、g、b转换成色调h及色饱和度信号s的公式如下：
    Figure PCTCN2020078415-appb-100001
    Figure PCTCN2020078415-appb-100002
    其中，max表示r/g/b中的最大值，min表示r/g/b中的最小值。
  4. 如权利要求3所述的一种显示面板的驱动方法，其中，所述根据第二色调色饱和度亮度空间信号调低第一亮度归一化信号中的最小值，以得到第二亮度归一化信号的步骤包括：
    第一亮度归一化信号包括：第一红色亮度归一化信号r，第一绿色亮度归一化信号g和第一蓝色亮度归一化信号b；第二亮度归一化信号包括：第二红色亮度归一化信号r’，第二绿色亮度归一化信号g’和第二蓝色亮度归一化信号b’；
    根据第二色调色饱和度亮度空间信号的色调，获取第一红色亮度归一化信号r、第一绿色亮度归一化信号g和第一蓝色亮度归一化信号b中的最小值min；
    根据色饱和度信号s和第二色饱和度信号s’，调低第一红色亮度归一化信号r、第一绿色亮度归一化信号g和第一蓝色亮度归一化信号b中的最小值min，得到调整后的最小值min’，以获得第二红色亮度归一化信号r’，第一绿色亮度归一化信号g’和第一蓝色亮度归一化信号b’。
  5. 如权利要求4所述的一种显示面板的驱动方法，其中，所述根据第二色调色饱和度亮度空间信号的色调，获取第一亮度归一化信号的最小值min的步骤包括：
    当主色调为红色时，max为r；
    确定绿色和蓝色对应的第一亮度归一化信号g和b中较小值为第一亮度归一化信号的最小值；
    当主色调为绿色时，max为g；
    确定红色和蓝色对应的第一亮度归一化信号r和g中较小值为第一亮度归一化信号的最小值；
    当主色调为蓝色时，max为b；
    确定红色和绿色对应的第一亮度归一化信号r和g中较小值为第一亮度归一化信号的最小值。
  6. 如权利要求4所述的一种显示面板的驱动方法，其中，
    所述根据第二亮度归一化信号转换得到第二色彩信号的步骤包括：
    根据如下的计算公式，将第二亮度归一化信号转换得到第二色彩信号：
    R’＝255×(r’) 1/γr、G’＝255×(g’) 1/γg、B’＝255×(b’) 1/γb；
    其中，r’，g’和b’为第二亮度归一化信号；R’，G’，B’为第二色彩信号。
  7. 如权利要求2所述的一种显示面板的驱动方法，其中，
    所述根据调整系数调整色饱和度信号s的色饱和度值，得到第二色饱和度信号s’的步骤中：
    色饱和度信号和第二色饱和度信号的色差Δuv满足如下公式：
    Figure PCTCN2020078415-appb-100003
    其中，u_1和v_1是色饱和度信号的色度坐标，该u_2和v_2是第二色饱和度信号的色度坐标。
  8. 如权利要求2所述的一种显示面板的驱动方法，其中，
    所述根据第一色调色饱和度亮度空间信号的色调获取调整系数的步骤：
    将色调H分为m个色调区间；
    根据色调区间获得调整系数a(H(m))、b(H(m))、c(H(m))、d(H(m))、e(H(m))；
    其中，色偏越严重的调整系数越大；
    所述色饱和度信号s和色调区间对应的第二色饱和度信号
    s’(H(m),s)满足如下公式：
    Figure PCTCN2020078415-appb-100004
    其中，a(H(m))、b(H(m))、c(H(m))、d(H(m))、e(H(m))为色调区间对饱和度调整常数。
  9. 如权利要求1所述的一种显示面板的驱动方法，其中，所述获取第一色调色饱和度亮度空间信号的色饱和度信号，调高色饱和度信号的色饱和度值，得到第二色饱和度信号，以获得第二色调色饱和度亮度空间信号的步骤包括：
    获取第一色调色饱和度亮度空间信号的色饱和度信号；
    色饱和度信号s全部根据调整系数，计算获得第二色饱和度信号s’；
    第二色饱和度信号s’和色饱和度信号s根据色调区间修正值计算得到第三色饱和度信号s”；
    使用调整系数和色调区间修正值对色饱和度信号进行调整，获得第三色饱和度信号以得到第二色调色饱和度亮度空间信号。
  10. 如权利要求9所述的一种显示面板的驱动方法，其中，在所述接收第一色彩信号，将第一色彩信号转换成第一亮度归一化信号，根据第一亮度归一化信号转换得到第一色调色饱和度亮度空间信号的步骤后，包括：
    将第一色调色饱和度亮度空间信号根据色调不同划分为第一色调、第二色调、第三色调、第四色调、第五色调和第六色调六种色调区间；
    在所述将第一色调色饱和度亮度空间信号根据色调不同划分为第一色调、第二色调、第三色调、第四色调、第五色调和第六色调六种色调区间的步骤后，包括：
    获取预设的调整系数，根据第一色调色饱和度亮度空间信号所处的色调区间获得色调区间修正值。
  11. 如权利要求9所述的一种显示面板的驱动方法，其中，所述色饱和度信号s全部根据调整系数，计算获得第二色饱和度信号s’的步骤包括：
    色饱和度信号s通过计算获得第二色饱和度信号s'满足如下公式：
    s’＝a×s 4+b×s 3+c×s 2+d×s+e；
    其中，s为色饱和度信号，s’为第二色饱和度信号；所述a,b,c,d,e为调整系数，且 为常数。
  12. 如权利要求11所述的一种显示面板的驱动方法，其中，所述第二色饱和度信号s’和色饱和度信号s根据色调区间修正值计算得到第三色饱和度信号s”的步骤包括：
    第二色饱和度信号s’和色饱和度信号s根据如下公式计算得到第三色饱和度信号s”：s”＝s+(s’-s)×H factor；
    其中，s为色饱和度信号，s’为第二色饱和度信号，s”为第三色饱和度信号，H factor遵循如下公式：
    Figure PCTCN2020078415-appb-100005
  13. 如权利要求11所述的一种显示面板的驱动方法，其中，所述第二色饱和度信号s’和色饱和度信号s根据色调区间修正值计算得到第三色饱和度信号s”的步骤包括：
    第二色饱和度信号s’和色饱和度信号s根据如下公式计算得到第三色饱和度信号s”：s”＝s+(s’-s)×Hfactor；
    其中，s为色饱和度信号，s’为第二色饱和度信号，s”为第三色饱和度信号，H factor遵循如下公式：
    Figure PCTCN2020078415-appb-100006
  14. 如权利要求12所述的一种显示面板的驱动方法，其中，在不同的色调区间下，色调区间修正值分别具有一个不同的权重系数A；
    当判断第一色调色饱和度亮度空间信号所处的色调区间，当到处于第一色调色饱和度亮度空间信号所处的色调区间分别为红色色调区间、绿色色调区间、蓝色色调区间、黄色色调区间、青色色调区间或洋红色调区间时，色调区间修正值所需要乘的权重分别为A red、A green、A blue、A yellow、A cyan或A meganta；
    对应红色色调区间、绿色色调区间、蓝色色调区间、黄色色调区间、青色色调区间或洋红色调区间的色调区间修正值为H factor×A red、H factor×A green、H factor×A blue、H factor×A yellow、H factor×A cyan或H factor×A meganta，其中，至少所述红色色调区间修正值H factor×A red大于所述绿色色调区间修正值H factor×A green。
  15. 如权利要求10所述的一种显示面板的驱动方法，其中，当前色饱和度信号s的色调H值满足如下公式的色调区间时，划分为调整色调区间：
    色调满足如下公式的色调区间为红色色调区间：340≤H,H≤20；
    色调值满足如下公式的色调区间为黄色色调区间：40≤H≤80；
    色调值满足如下公式的色调区间为绿色色调区间：100≤H≤140；
    色调值满足如下公式的色调区间为青色色调区间：160≤H≤200；色调值满足如下公式的色调区间为蓝色色调区间：220≤H≤260；
    色调值满足如下公式的色调区间为洋红色调区间：280≤H≤320。
    当前色饱和度信号s的色调H值满足如下公式的色调区间时，划分为非调整色调区间：20<H<40、80<H<100、140<H<160、200<H<220、260<H<280或320<H<340。
  16. 如权利要求10所述的一种显示面板的驱动方法，其中，当前色饱和度信号s的色调H值满足如下公式的色调区间时，划分为调整色调区间：330＜H,H≤30、30＜H≤90、90 ＜H≤150、150＜H≤210、210＜H≤270或270＜H≤330。
  17. 一种使用显示面板的驱动方法的驱动系统，包括：
    接收器，接收第一色彩信号，将第一色彩信号转换成第一亮度归一化信号，根据第一亮度归一化信号转换得到第一色调色饱和度亮度空间信号；
    调整器，获取第一色调色饱和度亮度空间信号的色饱和度信号，调高色饱和度信号的色饱和度值，得到第二色饱和度信号，以获得第二色调色饱和度亮度空间信号；
    计算器，根据第二色调色饱和度亮度空间信号调低第一亮度归一化信号中的最小值，以得到第二亮度归一化信号；
    转换器，根据第二亮度归一化信号转换得到第二色彩信号；以及
    驱动器，使用第二色彩信号驱动显示面板。
  18. 如权利要求10所述的一种使用显示面板的驱动方法的驱动系统，其中：，所述驱动系统还包括：划分器和获取器，所述划分器将第一色调色饱和度亮度空间信号根据色调不同划分为第一色调、第二色调、第三色调、第四色调、第五色调和第六色调六种色调区间；
    所述获取器获取预设的调整系数，根据第一色调色饱和度亮度空间信号所处的色调区间获得色调区间修正值。
  19. 一种显示装置，包括驱动系统和所述驱动系统驱动的显示面板，所述显示面板的驱动系统包括：接收器，接收第一色彩信号，将第一色彩信号转换成第一亮度归一化信号，根据第一亮度归一化信号转换得到第一色调色饱和度亮度空间信号；
    调整器，获取第一色调色饱和度亮度空间信号的色饱和度信号，调高色饱和度信号的色饱和度值，得到第二色饱和度信号，以获得第二色调色饱和度亮度空间信号；
    计算器，根据第二色调色饱和度亮度空间信号调低第一亮度归一化信号中的最小值，以得到第二亮度归一化信号；
    转换器，根据第二亮度归一化信号转换得到第二色彩信号；以及
    驱动器，使用第二色彩信号驱动显示面板。
  20. 如权利要求19所述的一种显示装置，其中，所述显示装置包括驱动系统和所述驱动系统驱动的显示面板，所述显示面板的驱动系统还包括：划分器和获取器，所述划分器将第一色调色饱和度亮度空间信号根据色调不同划分为第一色调、第二色调、第三色调、第四色调、第五色调和第六色调六种色调区间；
    所述获取器获取预设的调整系数，根据第一色调色饱和度亮度空间信号所处的色调区间获得色调区间修正值。
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