WO2016070447A1 - 一种rgb数据到wrgb数据的转换系统及转换方法 - Google Patents

一种rgb数据到wrgb数据的转换系统及转换方法 Download PDF

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WO2016070447A1
WO2016070447A1 PCT/CN2014/090928 CN2014090928W WO2016070447A1 WO 2016070447 A1 WO2016070447 A1 WO 2016070447A1 CN 2014090928 W CN2014090928 W CN 2014090928W WO 2016070447 A1 WO2016070447 A1 WO 2016070447A1
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value
color
enhanced
hsv
rgb
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PCT/CN2014/090928
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English (en)
French (fr)
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吴金军
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深圳市华星光电技术有限公司
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Priority to US14/426,982 priority Critical patent/US9589534B2/en
Publication of WO2016070447A1 publication Critical patent/WO2016070447A1/zh

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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/2003Display of colours
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/02Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the way in which colour is displayed
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/02Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the way in which colour is displayed
    • G09G5/026Control of mixing and/or overlay of colours in general
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00Aspects of the constitution of display devices
    • G09G2300/04Structural and physical details of display devices
    • G09G2300/0439Pixel structures
    • G09G2300/0452Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00Control of display operating conditions
    • G09G2320/02Improving the quality of display appearance
    • G09G2320/0242Compensation of deficiencies in the appearance of colours
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2340/00Aspects of display data processing
    • G09G2340/06Colour space transformation

Definitions

  • the present invention belongs to the field of display technologies, and in particular, to a conversion system and a conversion method for RGB data to WRGB data.
  • red sub-pixel units red sub-pixel units
  • green sub-pixel units green sub-pixel units
  • blue sub-pixel units make up a pixel unit.
  • RGB three primary color mixed light display mode has relatively low transmittance and mixing efficiency, resulting in large power consumption of the display panel, which restricts the optimization of the display panel.
  • R red
  • G green
  • B blue
  • W white
  • an image or video is stored by three channels of RGB, but a display panel of a four-pixel unit needs to display four sub-pixel units of WRGB, which requires converting the input RGB data into a WRGB data output.
  • the existing conversion method of RGB data to WRGB data cannot improve the saturation of the display screen while improving the transmittance, and also cannot have the effect of color enhancement.
  • a conversion system of RGB data to WRGB data comprising: a color enhancement component configured to color-enhance input RGB values to obtain color enhancement RGB value; a four-color conversion component that is constructed to The color enhanced RGB values are converted to WRGB values of the output.
  • the color enhancement component includes: an HSV conversion component configured to convert an input RGB value to an HSV color space; a sinusoidal processing component configured to perform sinusoidal processing on a saturation value of the HSV color space; and an HSV inverse conversion A component configured to convert a hue value of the HSV color space, a brightness value of the HSV color space, and a saturation value of the sinusoidally processed HSV color space to the color enhanced RGB value.
  • the HSV conversion component is further configured to convert the input RGB value to the HSV color space by using Equation 1.
  • r is the input R value
  • g is the input G value
  • b is the input B value
  • max is the maximum value of r
  • g, b min is the minimum value of r
  • g, b is the HSV
  • h is the HSV
  • s represents the saturation value of the HSV color space
  • v represents the brightness value of the HSV color space.
  • the sinusoidal processing component is further configured to perform sinusoidal processing on the saturation value of the HSV color space by using Equation 2,
  • s1 represents the saturation value of the sinusoidally processed HSV color space, 0 ⁇ k ⁇ 1, and s represents the saturation value of the HSV color space.
  • the HSV inverse conversion component is further configured to use the formula 3 to color the HSV
  • the tonal value of the space, the luminance value of the HSV color space, and the saturation value of the sinusoidally processed HSV color space are converted to the color enhanced RGB values,
  • h is the hue value of the HSV color space
  • v is the brightness value of the HSV color space
  • s1 is the saturation value of the sinusoidally processed HSV color space
  • R' is the color enhanced R value
  • G' is the color enhanced The G value
  • B' represents the color enhanced B value.
  • the four-color conversion component includes: a first calculating component configured to calculate a corresponding saturation value and a brightness enhancement coefficient according to the color-enhanced RGB value; and a second calculating component configured to a brightness enhancement coefficient and the color-enhanced RGB value calculate a brightness-increased RGB value; a white determining part configured to use a minimum value of the brightness-increased RGB values as an output W value; a three-color determining part, It is configured to calculate an output RGB value based on the brightness-increased RGB value and the output W value.
  • the first calculating component is further configured to calculate a corresponding saturation value and a brightness boosting coefficient by using Equation 4,
  • s2 represents the corresponding saturation value
  • R' represents a color enhanced R value
  • G' represents a color enhanced G value
  • B' represents a color enhanced B value
  • Min(R', G', B ') means R'
  • the minimum value of G', B', K represents the brightness enhancement coefficient
  • L1 represents the maximum brightness value corresponding to the input RGB value
  • L2 represents the maximum brightness value corresponding to the output WRGB value.
  • the second calculating component is further configured to calculate the RGB value of the brightness enhancement by using Equation 5,
  • R ' represents a color-enhanced R value
  • G' represents the value of the color-enhanced
  • B 'and B represents a value of the color-enhanced
  • K represents the brightness enhancement coefficient
  • R 1 represents enhance the brightness of the R
  • G 1 represents the G value of the brightness enhancement
  • B 1 represents the B value of the brightness enhancement
  • represents the gamma value
  • the three color determining component is further configured to calculate the output RGB value by using Equation 6,
  • R 2 represents the output R value
  • G 2 represents the output G value
  • B 2 represents the output B value
  • W 2 represents the output W value
  • represents the gamma value
  • R 1 represents the R value of the brightness enhancement
  • G 1 represents the G value of the brightness enhancement
  • B 1 represents the B value of the brightness enhancement.
  • Another object of the present invention is to provide a method for converting RGB data to WRGB data, comprising: performing color enhancement on input RGB values to obtain color enhanced RGB values; and converting the color enhanced RGB values The WRGB value for the output.
  • the method for performing color enhancement on the input RGB values to obtain the color enhanced RGB values specifically includes: converting the input RGB values into the HSV color space; and performing sinusoidal processing on the saturation values of the HSV color space; The tonal value of the HSV color space, the luminance value of the HSV color space, and the saturation value of the sinusoidally processed HSV color space are converted to the color enhanced RGB values.
  • the input RGB value is converted to the HSV color space by using Equation 1.
  • r is the input R value
  • g is the input G value
  • b is the input B value
  • max is the maximum value of r
  • g, b min is the minimum value of r
  • g, b is the HSV
  • h is the HSV
  • s represents the saturation value of the HSV color space
  • v represents the brightness value of the HSV color space.
  • s1 represents the saturation value of the sinusoidally processed HSV color space, 0 ⁇ k ⁇ 1, and s represents the saturation value of the HSV color space.
  • the tone value of the HSV color space, the brightness value of the HSV color space, and the saturation value of the sinusoidally processed HSV color space are converted into the color enhanced RGB values by using Equation 3,
  • h is the hue value of the HSV color space
  • v is the brightness value of the HSV color space
  • s1 is the saturation value of the sinusoidally processed HSV color space
  • R' is the color enhanced R value
  • G' is the color enhanced The G value
  • B' represents the color enhanced B value.
  • the method for converting the color-enhanced RGB value into an output WRGB value specifically includes: calculating a corresponding saturation value and a brightness enhancement coefficient based on the color-enhanced RGB value; a coefficient and the color-enhanced RGB value to calculate a brightness-increased RGB value; a minimum of the brightness-increased RGB values as an output W value; an RGB value based on the brightness enhancement and the output W The value calculates the RGB value of the output.
  • s2 represents the corresponding saturation value
  • R' represents a color enhanced R value
  • G' represents a color enhanced G value
  • B' represents a color enhanced B value
  • Min(R', G', B ') indicates the minimum value among R', G', B'
  • K indicates the brightness enhancement coefficient
  • L1 indicates the maximum brightness value corresponding to the input RGB value
  • L2 indicates the maximum brightness value corresponding to the output WRGB value.
  • R ' represents a color-enhanced R value
  • G' represents the value of the color-enhanced
  • B 'and B represents a value of the color-enhanced
  • K represents the brightness enhancement coefficient
  • R 1 represents enhance the brightness of the R
  • G 1 represents the G value of the brightness enhancement
  • B 1 represents the B value of the brightness enhancement
  • represents the gamma value
  • R 2 represents the output R value
  • G 2 represents the output G value
  • B 2 represents the output B value
  • W 2 represents the output W value
  • represents the gamma value
  • R 1 represents the R value of the brightness enhancement
  • G 1 represents the G value of the brightness enhancement
  • B 1 represents the B value of the brightness enhancement.
  • the conversion system and conversion method of the RGB data to WRGB data of the present invention enable the display device to improve the saturation of the display screen while improving the transmittance, and have the effect of color enhancement.
  • FIG. 1 is a block diagram of a display device in accordance with an embodiment of the present invention.
  • FIG. 2 is a structural view of a display panel in accordance with an embodiment of the present invention.
  • FIG. 3 is a schematic block diagram of a conversion system of RGB data to WRGB data in accordance with an embodiment of the present invention
  • FIG. 4 is a functional block diagram of a color enhancement component in accordance with an embodiment of the present invention.
  • Figure 5 is a schematic block diagram of a four color conversion assembly in accordance with an embodiment of the present invention.
  • FIG. 6 is a flow chart of a method of converting RGB data to WRGB data in accordance with an embodiment of the present invention.
  • the display device of the present embodiment may be, for example, a liquid crystal display device (LCD), an organic light emitting diode (OLED) display device, or the like.
  • LCD liquid crystal display device
  • OLED organic light emitting diode
  • 1 is a block diagram of a display device in accordance with an embodiment of the present invention.
  • 2 is a structural view of a display panel in accordance with an embodiment of the present invention.
  • a display device includes a display panel 1, a scan driver 2, a data driver 3, and RGB data (i.e., RGB values) to WRGB data (i.e., WRGB values).
  • RGB data i.e., RGB values
  • WRGB data i.e., WRGB values
  • the display panel 1 includes scan lines G1 to Gn extending in the row direction (where n is a natural number) and data lines S1 to Sm extending in the column direction (where m is a natural number).
  • the scan lines G1 to Gn are both connected to the scan driver 2, and the data lines S1 to Sm are both connected to the data driver 3.
  • the sub-pixel Lij (red (R) sub-pixel or green (G) sub-pixel or blue (B) sub-pixel or white (W) sub-pixel) is disposed by the scan line Gi, Gi+1 (where i is 1 to Any of the natural numbers in n) and the data lines Sj, Sj+1 (where j is any natural number from 1 to m), wherein one red (R) sub-pixel and one green (G) A sub-pixel, a blue (B) sub-pixel, and a white (W) sub-pixel constitute one pixel.
  • a thin film transistor (TFT) Qij is disposed in the vicinity of each intersection of the scanning line Gi and the data line Sj.
  • the scan line Gi is connected to the gate of the thin film transistor Qij
  • the data line Sj is connected to the source of the thin film transistor Qij
  • the sub-pixel Lij red (R) sub-pixel or green (G) sub-pixel or blue (B) sub-pixel
  • the pixel electrode of the white (W) sub-pixel is connected to the drain of the thin film transistor Qij.
  • the common electrode opposite to the pixel electrode of the sub-pixel Lij is connected to a common voltage circuit (not shown).
  • the scan driver 2 and the data driver 3 are disposed around the display panel 1.
  • the conversion system 4 of RGB data to WRGB data converts the input RGB value into the output WRGB value, and supplies the output WRGB value to the data driver 3.
  • the input RGB value can be provided by, for example, an external host or a graphics controller (not shown).
  • the data driver 3 receives and processes the WRGB values of the output supplied from the RGB data to the WRGB data conversion system 4 to generate analog type data signals and supplies them to the data lines S1 to Sm.
  • the scan driver 2 sequentially supplies a plurality of scan signals to the scan lines G1 to Gn.
  • the display panel 1 displays an image via an analog type data signal supplied from the data driver 3 and a scan signal supplied from the scan driver 2.
  • FIG. 3 is a functional block diagram of a conversion system of RGB data to WRGB data in accordance with an embodiment of the present invention.
  • a conversion system 4 of RGB data to WRGB data includes a color enhancement component 41 and a four-color conversion component 42.
  • the color enhancement component 41 is configured to color enhance the input RGB values to obtain color enhanced RGB values.
  • r represents the input R value
  • g represents the input G value
  • b represents the input.
  • R' indicates color enhanced R value, G' indicates color enhanced G value, B' indicates color enhanced B value;
  • four color conversion component 42 is configured to convert color enhanced RGB value It is the WRGB value of the output, and the output WRGB value is supplied to the data driver 3.
  • R 2 represents the output R value
  • G 2 represents the output G value
  • B 2 represents the output B value
  • W 2 indicates the W value of the output.
  • FIG. 4 is a functional block diagram of a color enhancement component in accordance with an embodiment of the present invention.
  • a color enhancement component 41 includes an HSV conversion section 411, a sine processing section 412, and an HSV inverse conversion section 413.
  • the HSV conversion section 411 is configured to convert the input RGB values into an HSV (hue, saturation, brightness) color space. Further, the HSV conversion section 411 can convert the input RGB values into the HSV color space using Equation 1 below.
  • max represents the maximum value of r, g, b
  • min represents the minimum value of r, g, b
  • h Indicates the hue value of the HSV color space
  • s represents the saturation value of the HSV color space (ie, the saturation value of the HSV color space that is not sinusoidally processed by the sinusoidal processing component 412)
  • v represents the luminance value of the HSV color space.
  • the HSV conversion section 411 supplies the saturation value of the converted HSV color space to the sine processing section 412.
  • the sinusoidal processing component 412 receives the saturation value of the HSV color space provided by the HSV conversion component 411 and performs sinusoidal processing on the received saturation value of the HSV color space. Further, the sinusoidal processing section 412 performs sinusoidal processing on the saturation value of the HSV color space using Equation 2 below.
  • s1 represents the saturation value of the sinusoidally processed HSV color space, 0 ⁇ k ⁇ 1, and s represents the saturation value of the HSV color space.
  • the HSV conversion section 411 supplies the converted tone value of the HSV color space and the luminance value of the HSV color space to the HSV inverse conversion section 413
  • the sine processing section 412 supplies the saturation value of the sinusoidally processed HSV color space to the HSV inverse Conversion component 413.
  • the HSV inverse conversion section 413 receives the tone value of the HSV color space provided by the HSV conversion section 411, the luminance value of the HSV color space, and the saturation value of the sinusoidally processed HSV color space supplied by the sine processing section 412, and receives the received
  • the hue value of the HSV color space, the brightness value of the HSV color space, and the saturation value of the sinusoidally processed HSV color space are converted to color enhanced RGB values.
  • the HSV inverse conversion section 413 converts the tone value of the HSV color space, the luminance value of the HSV color space, and the sinusoidally processed saturation value into the color-enhanced RGB values using Equation 3 below.
  • Figure 5 is a functional block diagram of a four color conversion assembly in accordance with an embodiment of the present invention.
  • a four-color conversion component 42 includes a first calculation section 421, a second calculation section 422, a white determination section 423, and a three-color determination section 424.
  • the HSV inverse conversion section 413 supplies the color enhanced RGB values to the first calculation section 421 and the second calculation section 422.
  • the first calculation section 421 receives the color-enhanced RGB values supplied from the HSV inverse conversion section 413, and calculates a corresponding saturation value and a luminance enhancement coefficient based on the received color-enhanced RGB values.
  • the corresponding saturation value refers to a saturation value corresponding to the color enhanced RGB value.
  • the first calculating unit 421 calculates a corresponding saturation value and a brightness enhancement coefficient by using Equation 4 below.
  • Min(R', G', B') represents the minimum value of R', G', B'
  • K represents the brightness enhancement coefficient
  • L1 represents the input RGB The maximum brightness value corresponding to the value
  • L2 represents the maximum brightness value corresponding to the output WRGB value.
  • the first calculating unit 421 can also calculate the corresponding saturation value and the following formula 4'. Brightness enhancement factor.
  • Min(R', G', B') represents the minimum value of R', G', B'
  • Max(R', G', B') represents R'
  • the maximum value of G', B', K represents the brightness enhancement coefficient
  • L1 represents the maximum brightness value corresponding to the input RGB value
  • L2 represents the maximum brightness value corresponding to the output WRGB value.
  • the first calculating part 421 supplies its calculated brightness enhancement coefficient to the second calculating part 422.
  • the second calculating part 422 receives the color-enhanced RGB value supplied from the HSV inverse conversion section 413 and the brightness enhancement coefficient supplied from the first calculating part 421, and calculates the brightness based on the received color-enhanced RGB value and the brightness enhancement coefficient. Raised RGB values. Further, the second calculating unit 422 calculates the RGB value of the brightness enhancement using Equation 5 below.
  • R 1 represents the R value of the luminance enhancement
  • G 1 represents the G value of the luminance enhancement
  • B 1 represents the B value of the luminance enhancement
  • represents the gamma value
  • the second calculating section 422 supplies the calculated luminance-increased RGB values to the white determining section 423 and the three-color determining section 424.
  • the white determining section 423 receives the luminance-increased RGB value supplied from the second calculating section 422, and takes the minimum value Min (R 1 , G 1 , B 1 ) among the received luminance-raised RGB values as the output W value.
  • Min Min (R 1 , G 1 , B 1 ) among the received luminance-raised RGB values
  • the white determining section 423 supplies the W value of its determined output to the three color determining section 424.
  • the three-color determining section 424 receives the luminance-increased RGB value supplied from the second calculating section 422 and the W value of the output supplied from the white determining section 423, and calculates an output based on the received luminance-increased RGB value and the outputted W-value. RGB value. Further, the three-color determining section 424 calculates the output RGB value using Equation 6 below.
  • the white determining section 423 supplies the W value of its determined output to the data driver 3, and the three color determining section 424 also supplies the RGB value of its calculated output to the data driver 3.
  • FIG. 6 is a flow chart of a method of converting RGB data to WRGB data in accordance with an embodiment of the present invention.
  • step 610 the input RGB values are color enhanced to obtain color enhanced RGB values.
  • step 610 includes:
  • Step 611 Convert the input RGB values to the HSV (Hue, Saturation, Brightness) color space. Further, in step 611, the input RGB values can be converted to the HSV color space using Equation 1 above.
  • Step 612 Sinusoidal processing of the saturation value of the HSV color space. Further, in step 612, the saturation value of the HSV color space may be sinusoidally processed using Equation 2 above.
  • Step 613 Convert the hue value of the HSV color space, the brightness value of the HSV color space, and the saturation value of the sinusoidally processed HSV color space into color enhanced RGB values. Further, in step 613, the tone value of the HSV color space, the brightness value of the HSV color space, and the sinusoidally processed saturation value may be converted to the color enhanced RGB value using Equation 3 above.
  • step 620 the color enhanced RGB values are converted to the output WRGB values and the output WRGB values are provided to the data driver 3.
  • step 620 includes:
  • Step 621 Calculate a corresponding saturation value and a brightness enhancement coefficient based on the color enhanced RGB values.
  • the corresponding saturation value refers to a saturation value corresponding to the color enhanced RGB value.
  • the corresponding saturation value and brightness enhancement coefficient can be calculated using Equation 4 or Equation 4' above.
  • Step 622 Calculate the RGB value of the brightness enhancement based on the color enhanced RGB value and the brightness enhancement coefficient. Further, in step 622, the RGB value of the brightness enhancement can be calculated using Equation 5 above.
  • Step 623 The minimum value Min(R 1 , G 1 , B 1 ) among the RGB values of the brightness enhancement is taken as the W value of the output.
  • the white determining section 423 maintains the W value of its output at 255.
  • Step 624 Calculate the output RGB value based on the RGB value of the brightness enhancement and the W value of the output. Further, in step 624, the output RGB value can be calculated using Equation 6 above.
  • the RGB data-to-WRGB data conversion system and the conversion method according to the embodiment of the present invention enable the display device to improve the saturation of the display screen while improving the transmittance, and have the effect of color enhancement.

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Abstract

一种RGB数据到WRGB数据的转换系统,包括:色彩增强组件,被构造为对输入的RGB值进行色彩增强,以获得经色彩增强的RGB值;四色转换组件,被构造为将所述经色彩增强的RGB值转换为输出的WRGB值。一种RGB数据到WRGB数据的转换方法。RGB数据到WRGB数据的转换系统及转换方法,使得显示装置在提升穿透率的同时提高显示画面的饱和度,并且具有色彩增强的效果。

Description

一种RGB数据到WRGB数据的转换系统及转换方法 技术领域
本发明属于显示技术领域,具体地讲,涉及一种RGB数据到WRGB数据的转换系统及转换方法。
背景技术
目前,在具有例如液晶显示面板或有机发光二极管(OLED)显示面板的显示装置中,大多数是以红色(R)子像素单元、绿色(G)子像素单元和蓝色(B)子像素单元组成一个像素单元。通过控制红色子像素单元的R数据、绿色子像素单元的G数据以及蓝色子像素单元的B数据,混合出显示面板所需要显示的色彩来显示彩色图像。
随着信息技术的发展,对于显示面板的各种需求也在增加,高穿透率、低功耗、成像质量佳成为人们对显示面板的需求。现有的RGB三原色混光显示方式的穿透率以及混合效率都比较低,导致显示面板的功耗大,制约了显示面板的优化。基于此,出现了具有由红色(R)子像素单元、绿色(G)子像素单元、蓝色(B)子像素单元和第四子像素单元(例如白色(W)子像素单元)组成的一个四像素单元的显示面板,从而改善RGB显示面板的显示质量。
通常,图像或视频是由RGB三通道存储信息的,但是四像素单元的显示面板需要利用WRGB四个子像素单元进行显示,这就需要将输入的RGB数据转换成WRGB数据输出。然而,现有的RGB数据到WRGB数据的转换方法无法在提升穿透率的同时提高显示画面的饱和度,并且也无法具有色彩增强的效果。
发明内容
为了解决上述现有技术存在的问题,本发明的目的在于提供一种RGB数据到WRGB数据的转换系统,包括:色彩增强组件,被构造为对输入的RGB值进行色彩增强,以获得经色彩增强的RGB值;四色转换组件,被构造为将 所述经色彩增强的RGB值转换为输出的WRGB值。
进一步地,所述色彩增强组件包括:HSV转换部件,被构造为将输入的RGB值转换到HSV颜色空间;正弦处理部件,被构造为对HSV颜色空间的饱和度值进行正弦处理;HSV逆转换部件,被构造为将HSV颜色空间的色调值、HSV颜色空间的亮度值以及经正弦处理的HSV颜色空间的饱和度值转换为所述经色彩增强的RGB值。
进一步地,所述HSV转换部件进一步被构造为利用式子1将输入的RGB值转换到HSV颜色空间,
[式子1]
Figure PCTCN2014090928-appb-000001
其中,r表示输入的R值,g表示输入的G值,b表示输入的B值,max表示r、g、b中的最大值,min表示r、g、b中的最小值,h表示HSV颜色空间的色调值,s表示HSV颜色空间的饱和度值,v表示HSV颜色空间的亮度值。
进一步地,所述正弦处理部件进一步被构造为利用式子2对HSV颜色空间的饱和度值进行正弦处理,
[式子2]
Figure PCTCN2014090928-appb-000002
其中,s1表示经正弦处理的HSV颜色空间的饱和度值,0≤k≤1,s表示HSV颜色空间的饱和度值。
进一步地,所述HSV逆转换部件进一步被构造为利用式子3将HSV颜色 空间的色调值、HSV颜色空间的亮度值以及经正弦处理的HSV颜色空间的饱和度值转换为所述经色彩增强的RGB值,
[式子3]
Figure PCTCN2014090928-appb-000003
Figure PCTCN2014090928-appb-000004
其中,h表示HSV颜色空间的色调值,v表示HSV颜色空间的亮度值,s1表示经正弦处理的HSV颜色空间的饱和度值,R’表示经色彩增强的R值,G’表示经色彩增强的G值,B’表示经色彩增强的B值。
进一步地,所述四色转换组件包括:第一计算部件,被构造为根据所述经色彩增强的RGB值计算出相应饱和度值和亮度提升系数;第二计算部件,被构造为根据所述亮度提升系数及所述经色彩增强的RGB值计算出亮度提升的RGB值;白色确定部件,被构造为将所述亮度提升的RGB值中的最小值作为输出的W值;三色确定部件,被构造为根据所述亮度提升的RGB值及所述输出的W值计算出输出的RGB值。
进一步地,所述第一计算部件进一步被构造为利用式子4计算出相应饱和度值和亮度提升系数,
式子[4]
Figure PCTCN2014090928-appb-000005
K=1+(K0-1)×(1-s2),K0=L2/L1
其中,s2表示所述相应饱和度值,R’表示经色彩增强的R值,G’表示经色彩增强的G值,B’表示经色彩增强的B值,Min(R’,G’,B’)表示R’、 G’、B’中的最小值,K表示所述亮度提升系数,L1表示与输入的RGB值对应的最大亮度值,L2表示与输出的WRGB值对应的最大亮度值。
进一步地,所述第二计算部件进一步被构造为利用式子5计算出亮度提升的RGB值,
式子[5]
Figure PCTCN2014090928-appb-000006
其中,R’表示经色彩增强的R值,G’表示经色彩增强的G值,B’表示经色彩增强的B值,K表示所述亮度提升系数,R1表示亮度提升的R值,G1表示亮度提升的G值,B1表示亮度提升的B值,γ表示伽马值。
进一步地,所述三色确定部件进一步被构造为利用式子6计算出输出的RGB值,
式子[6]
Figure PCTCN2014090928-appb-000007
Rb+Gb+Bb=W2
其中,R2表示输出的R值,G2表示输出的G值,B2表示输出的B值,W2表示输出的W值,γ表示伽马值,R1表示亮度提升的R值,G1表示亮度提升的G值,B1表示亮度提升的B值。
本发明的另一目的还在于提供一种RGB数据到WRGB数据的转换方法,包括:对输入的RGB值进行色彩增强,以获得经色彩增强的RGB值;将所述经色彩增强的RGB值转换为输出的WRGB值。
进一步地,所述对输入的RGB值进行色彩增强,以获得经色彩增强的RGB值的方法具体包括:将输入的RGB值转换到HSV颜色空间;对HSV颜色空间的饱和度值进行正弦处理;将HSV颜色空间的色调值、HSV颜色空间的亮度值以及经正弦处理的HSV颜色空间的饱和度值转换为所述经色彩增强的RGB值。
进一步地,利用式子1将输入的RGB值转换到HSV颜色空间,
[式子1]
Figure PCTCN2014090928-appb-000008
其中,r表示输入的R值,g表示输入的G值,b表示输入的B值,max表示r、g、b中的最大值,min表示r、g、b中的最小值,h表示HSV颜色空间的色调值,s表示HSV颜色空间的饱和度值,v表示HSV颜色空间的亮度值。
进一步地,利用式子2对HSV颜色空间的饱和度值进行正弦处理,
[式子2]
Figure PCTCN2014090928-appb-000009
其中,s1表示经正弦处理的HSV颜色空间的饱和度值,0≤k≤1,s表示HSV颜色空间的饱和度值。
进一步地,利用式子3将HSV颜色空间的色调值、HSV颜色空间的亮度值以及经正弦处理的HSV颜色空间的饱和度值转换为所述经色彩增强的RGB值,
[式子3]
Figure PCTCN2014090928-appb-000010
Figure PCTCN2014090928-appb-000011
其中,h表示HSV颜色空间的色调值,v表示HSV颜色空间的亮度值,s1表示经正弦处理的HSV颜色空间的饱和度值,R’表示经色彩增强的R值,G’表示经色彩增强的G值,B’表示经色彩增强的B值。
进一步地,所述将所述经色彩增强的RGB值转换为输出的WRGB值的方法具体包括:基于所述经色彩增强的RGB值计算出相应饱和度值和亮度提升系数;基于所述亮度提升系数及所述经色彩增强的RGB值计算出亮度提升的RGB值;将所述亮度提升的RGB值中的最小值作为输出的W值;基于所述亮度提升的RGB值及所述输出的W值计算出输出的RGB值。
进一步地,利用式子4计算出相应饱和度值和亮度提升系数,
式子[4]
Figure PCTCN2014090928-appb-000012
K=1+(K0-1)×(1-s2),K0=L2/L1
其中,s2表示所述相应饱和度值,R’表示经色彩增强的R值,G’表示经色彩增强的G值,B’表示经色彩增强的B值,Min(R’,G’,B’)表示R’、G’、B’中的最小值,K表示所述亮度提升系数,L1表示与输入的RGB值对应的最大亮度值,L2表示与输出的WRGB值对应的最大亮度值。
进一步地,利用式子5计算出亮度提升的RGB值,
式子[5]
Figure PCTCN2014090928-appb-000013
其中,R’表示经色彩增强的R值,G’表示经色彩增强的G值,B’表示经色彩增强的B值,K表示所述亮度提升系数,R1表示亮度提升的R值,G1表示亮度提升的G值,B1表示亮度提升的B值,γ表示伽马值。
进一步地,利用式子6计算出输出的RGB值,
式子[6]
Figure PCTCN2014090928-appb-000014
Rb+Gb+Bb=W2
其中,R2表示输出的R值,G2表示输出的G值,B2表示输出的B值, W2表示输出的W值,γ表示伽马值,R1表示亮度提升的R值,G1表示亮度提升的G值,B1表示亮度提升的B值。
本发明的RGB数据到WRGB数据的转换系统及转换方法,使得显示装置在提升穿透率的同时提高显示画面的饱和度,并且具有色彩增强的效果。
附图说明
通过结合附图进行的以下描述,本发明的实施例的上述和其它方面、特点和优点将变得更加清楚,附图中:
图1是根据本发明的实施例的显示装置的框图;
图2是根据本发明的实施例的显示面板的结构图;
图3是根据本发明的实施例的RGB数据到WRGB数据的转换系统的原理框图;
图4是根据本发明的实施例的色彩增强组件的原理框图;
图5是根据本发明的实施例的四色转换组件的原理框图;
图6是根据本发明的实施例的RGB数据到WRGB数据的转换方法的流程图。
具体实施方式
以下,将参照附图来详细描述本发明的实施例。然而,可以以许多不同的形式来实施本发明,并且本发明不应该被解释为限制于这里阐述的具体实施例。相反,提供这些实施例是为了解释本发明的原理及其实际应用,从而使本领域的其他技术人员能够理解本发明的各种实施例和适合于特定预期应用的各种修改。
本实施例的显示装置可例如是液晶显示装置(LCD)、有机发光二极管(OLED)显示装置等。
图1是根据本发明的实施例的显示装置的框图。图2是根据本发明的实施例的显示面板的结构图。
参照图1和图2,根据本发明的实施例的显示装置包括:显示面板1、扫描驱动器2、数据驱动器3、RGB数据(即RGB值)到WRGB数据(即WRGB值)的转换系统4。
显示面板1包括:沿行方向延伸的扫描线G1至Gn(其中,n为自然数)以及沿列方向延伸的数据线S1至Sm(其中,m为自然数)。扫描线G1至Gn均连接至扫描驱动器2,数据线S1至Sm均连接至数据驱动器3。
子像素Lij(红色(R)子像素或绿色(G)子像素或蓝色(B)子像素或白色(W)子像素)设置在由扫描线Gi、Gi+1(其中,i为1至n中的任一自然数)和数据线Sj、Sj+1(其中,j为1至m中的任一自然数)限定出的区域中,其中,一个红色(R)子像素、一个绿色(G)子像素、一个蓝色(B)子像素和一个白色(W)子像素构成一个像素。
薄膜晶体管(TFT)Qij设置在扫描线Gi和数据线Sj的每一交叉处的附近。
进一步地,扫描线Gi连接薄膜晶体管Qij的栅极,数据线Sj连接薄膜晶体管Qij的源极,子像素Lij(红色(R)子像素或绿色(G)子像素或蓝色(B)子像素或白色(W)子像素)的像素电极连接薄膜晶体管Qij的漏极。与子像素Lij的像素电极相对的共同电极连接至共同电压电路(未示出)。
扫描驱动器2和数据驱动器3设置在显示面板1的周围。RGB数据到WRGB数据的转换系统4将输入的RGB值转换为输出的WRGB值,并将该输出的WRGB值提供给数据驱动器3。这里,输入的RGB值可由例如外部主机或图形控制器(未示出)提供。
数据驱动器3接收并处理来自RGB数据到WRGB数据的转换系统4提供的输出的WRGB值,以产生模拟类型数据信号并提供给数据线S1至Sm。扫描驱动器2向扫描线G1至Gn顺序提供多个扫描信号。显示面板1经由数据驱动器3提供的模拟类型数据信号和扫描驱动器2提供的扫描信号来显示影像。
以下将对根据本发明的实施例的RGB数据到WRGB数据的转换系统4进行详细的描述说明。
图3是根据本发明的实施例的RGB数据到WRGB数据的转换系统的原理框图。
参照图3,根据本发明的实施例的RGB数据到WRGB数据的转换系统4包括:色彩增强组件41和四色转换组件42。
色彩增强组件41被配置为对输入的RGB值进行色彩增强,以获得经色彩增强的RGB值,在本实施例中,以r表示输入的R值,g表示输入的G值,b表示输入的B值;以R’表示经色彩增强的R值,G’表示经色彩增强的G值,B’表示经色彩增强的B值;四色转换组件42被配置为将经色彩增强的RGB值转换为输出的WRGB值,并将输出的WRGB值提供给数据驱动器3,在本实施例中,以R2表示输出的R值,G2表示输出的G值,B2表示输出的B值,W2表示输出的W值。
图4是根据本发明的实施例的色彩增强组件的原理框图。
参照图4,根据本发明的实施例的色彩增强组件41包括:HSV转换部件411、正弦处理部件412、HSV逆转换部件413。
具体而言,HSV转换部件411被配置为将输入的RGB值转换到HSV(色调、饱和度、亮度)颜色空间。进一步地,HSV转换部件411可利用下面的式子1将输入的RGB值转换到HSV颜色空间。
[式子1]
Figure PCTCN2014090928-appb-000015
这里,max表示r、g、b中的最大值,min表示r、g、b中的最小值,h 表示HSV颜色空间的色调值,s表示HSV颜色空间的饱和度值(即未经正弦处理部件412正弦处理的HSV颜色空间的饱和度值),v表示HSV颜色空间的亮度值。
HSV转换部件411将转换成的HSV颜色空间的饱和度值提供给正弦处理部件412。正弦处理部件412接收由HSV转换部件411提供的HSV颜色空间的饱和度值,并对接收到的HSV颜色空间的饱和度值进行正弦处理。进一步地,正弦处理部件412利用下面的式子2对HSV颜色空间的饱和度值进行正弦处理。
[式子2]
Figure PCTCN2014090928-appb-000016
其中,s1表示经正弦处理的HSV颜色空间的饱和度值,0≤k≤1,s表示HSV颜色空间的饱和度值。
HSV转换部件411将转换成的HSV颜色空间的色调值和HSV颜色空间的亮度值提供给HSV逆转换部件413,并且正弦处理部件412将经正弦处理的HSV颜色空间的饱和度值提供给HSV逆转换部件413。HSV逆转换部件413接收由HSV转换部件411提供的HSV颜色空间的色调值、HSV颜色空间的亮度值以及由正弦处理部件412提供的经正弦处理的HSV颜色空间的饱和度值,并将接收的HSV颜色空间的色调值、HSV颜色空间的亮度值和经正弦处理的HSV颜色空间的饱和度值转换为经色彩增强的RGB值。进一步地,HSV逆转换部件413利用下面的式子3将HSV颜色空间的色调值、HSV颜色空间的亮度值以及经正弦处理的饱和度值转换为所述经色彩增强的RGB值。
[式子3]
Figure PCTCN2014090928-appb-000017
这里,
Figure PCTCN2014090928-appb-000018
图5是根据本发明的实施例的四色转换组件的原理框图。
参照图5,根据本发明的实施例的四色转换组件42包括:第一计算部件421、第二计算部件422、白色确定部件423、三色确定部件424。
具体而言,HSV逆转换部件413将经色彩增强的RGB值提供给第一计算部件421和第二计算部件422。第一计算部件421接收由HSV逆转换部件413提供的经色彩增强的RGB值,并根据接收的经色彩增强的RGB值计算出相应饱和度值和亮度提升系数。这里,所述相应饱和度值指的是与所述经色彩增强的RGB值对应的饱和度值。
进一步地,第一计算部件421利用下面的式子4计算出相应饱和度值和亮度提升系数。
式子[4]
Figure PCTCN2014090928-appb-000019
K=1+(K0-1)×(1-s2),K0=L2/L1
其中,s2表示所述相应饱和度值,Min(R’,G’,B’)表示R’、G’、B’中的最小值,K表示所述亮度提升系数,L1表示与输入的RGB值对应的最大亮度值,L2表示与输出的WRGB值对应的最大亮度值。
此外,第一计算部件421还可利用下面的式子4’计算出相应饱和度值和 亮度提升系数。
式子[4’]
Figure PCTCN2014090928-appb-000020
K=1+(K0-1)×(1-s2),K0=L2/L1
其中,s2表示所述相应饱和度值,Min(R’,G’,B’)表示R’、G’、B’中的最小值,Max(R’,G’,B’)表示R’、G’、B’中的最大值,K表示所述亮度提升系数,L1表示与输入的RGB值对应的最大亮度值,L2表示与输出的WRGB值对应的最大亮度值。
第一计算部件421将其计算出的亮度提升系数提供给第二计算部件422。第二计算部件422接收由HSV逆转换部件413提供的经色彩增强的RGB值以及由第一计算部件421提供的亮度提升系数,并根据接收的经色彩增强的RGB值及亮度提升系数计算出亮度提升的RGB值。进一步地,第二计算部件422利用下面的式子5计算出亮度提升的RGB值。
式子[5]
Figure PCTCN2014090928-appb-000021
这里,R1表示亮度提升的R值,G1表示亮度提升的G值,B1表示亮度提升的B值,γ表示伽马(Gamma)值。
第二计算部件422将其计算出的亮度提升的RGB值提供给白色确定部件423和三色确定部件424。白色确定部件423接收由第二计算部件422提供的亮度提升的RGB值,并将接收的亮度提升的RGB值中的最小值Min(R1,G1,B1)作为输出的W值。这里,如果输出的W值大于255,则白色确定部件423将其输出的W值保持为255。
白色确定部件423将其确定的输出的W值提供给三色确定部件424。三色确定部件424接收由第二计算部件422提供的亮度提升的RGB值以及由白色确定部件423提供的输出的W值,并根据接收的亮度提升的RGB值及输出的W值计算出输出的RGB值。进一步地,三色确定部件424利用下面的式子6计算出输出的RGB值。
式子[6]
Figure PCTCN2014090928-appb-000022
Rb+Gb+Bb=W2
白色确定部件423将其确定的输出的W值提供给数据驱动器3,且三色确定部件424将其计算出的输出的RGB值也提供给数据驱动器3。
图6是根据本发明的实施例的RGB数据到WRGB数据的转换方法的流程图。
参照图6,在步骤610中,对输入的RGB值进行色彩增强,以获得经色彩增强的RGB值。
步骤610的具体方法包括:
步骤611:将输入的RGB值转换到HSV(色调、饱和度、亮度)颜色空间。进一步地,在步骤611中,可利用上面的式子1将输入的RGB值转换到HSV颜色空间。
步骤612:对HSV颜色空间的饱和度值进行正弦处理。进一步地,在步骤612中,可利用上面的式子2对HSV颜色空间的饱和度值进行正弦处理。
步骤613:将HSV颜色空间的色调值、HSV颜色空间的亮度值和经正弦处理的HSV颜色空间的饱和度值转换为经色彩增强的RGB值。进一步地,在步骤613中,可利用上面的式子3将HSV颜色空间的色调值、HSV颜色空间的亮度值以及经正弦处理的饱和度值转换为所述经色彩增强的RGB值。
在步骤620中,将经色彩增强的RGB值转换为输出的WRGB值,并将输出的WRGB值提供给数据驱动器3。
步骤620的具体方法包括:
步骤621:基于经色彩增强的RGB值计算出相应饱和度值和亮度提升系数。这里,所述相应饱和度值指的是与所述经色彩增强的RGB值对应的饱和度值。进一步地,在步骤621中,可利用上面的式子4或者式子4’计算出相应饱和度值和亮度提升系数。
步骤622:基于经色彩增强的RGB值和亮度提升系数计算出亮度提升的RGB值。进一步地,在步骤622中,可利用上面的式子5计算出亮度提升的RGB值。
步骤623:将亮度提升的RGB值中的最小值Min(R1,G1,B1)作为输出的W值。这里,如果输出的W值大于255,则白色确定部件423将其输出的W值保持为255。
步骤624:基于亮度提升的RGB值及输出的W值计算出输出的RGB值。进一步地,在步骤624中,可利用上面的式子6计算出输出的RGB值。
综上所述,根据本发明的实施例的RGB数据到WRGB数据的转换系统及转换方法,使得显示装置在提升穿透率的同时提高显示画面的饱和度,并且具有色彩增强的效果。
虽然已经参照特定实施例示出并描述了本发明,但是本领域的技术人员将理解:在不脱离由权利要求及其等同物限定的本发明的精神和范围的情况下,可在此进行形式和细节上的各种变化。

Claims (18)

  1. 一种RGB数据到WRGB数据的转换系统,其中,包括:
    色彩增强组件,被构造为对输入的RGB值进行色彩增强,以获得经色彩增强的RGB值;
    四色转换组件,被构造为将所述经色彩增强的RGB值转换为输出的WRGB值。
  2. 根据权利要求1所述的转换系统,其中,所述色彩增强组件包括:
    HSV转换部件,被构造为将输入的RGB值转换到HSV颜色空间;
    正弦处理部件,被构造为对HSV颜色空间的饱和度值进行正弦处理;
    HSV逆转换部件,被构造为将HSV颜色空间的色调值、HSV颜色空间的亮度值以及经正弦处理的HSV颜色空间的饱和度值转换为所述经色彩增强的RGB值。
  3. 根据权利要求2所述的转换系统,其中,所述HSV转换部件进一步被构造为利用式子1将输入的RGB值转换到HSV颜色空间,
    [式子1]
    Figure PCTCN2014090928-appb-100001
    其他,v=max
    其中,r表示输入的R值,g表示输入的G值,b表示输入的B值,max表示r、g、b中的最大值,min表示r、g、b中的最小值,h表示HSV颜色空间的色调值,s表示HSV颜色空间的饱和度值,v表示HSV颜色空间的亮度 值。
  4. 根据权利要求2所述的转换系统,其中,所述正弦处理部件进一步被构造为利用式子2对HSV颜色空间的饱和度值进行正弦处理,
    [式子2]
    Figure PCTCN2014090928-appb-100002
    其中,s1表示经正弦处理的HSV颜色空间的饱和度值,0≤k≤1,s表示HSV颜色空间的饱和度值。
  5. 根据权利要求2所述的转换系统,其中,所述HSV逆转换部件进一步被构造为利用式子3将HSV颜色空间的色调值、HSV颜色空间的亮度值以及经正弦处理的HSV颜色空间的饱和度值转换为所述经色彩增强的RGB值,
    [式子3]
    Figure PCTCN2014090928-appb-100003
    a=v×(1-s1),
    Figure PCTCN2014090928-appb-100004
    其中,h表示HSV颜色空间的色调值,v表示HSV颜色空间的亮度值,s1表示经正弦处理的HSV颜色空间的饱和度值,R’表示经色彩增强的R值,G’表示经色彩增强的G值,B’表示经色彩增强的B值。
  6. 根据权利要求1所述的转换系统,其中,所述四色转换组件包括:
    第一计算部件,被构造为根据所述经色彩增强的RGB值计算出相应饱和度值和亮度提升系数;
    第二计算部件,被构造为根据所述亮度提升系数及所述经色彩增强的RGB值计算出亮度提升的RGB值;
    白色确定部件,被构造为将所述亮度提升的RGB值中的最小值作为输出的W值;
    三色确定部件,被构造为根据所述亮度提升的RGB值及所述输出的W值计算出输出的RGB值。
  7. 根据权利要求6所述的转换系统,其中,所述第一计算部件进一步被构造为利用式子4计算出相应饱和度值和亮度提升系数,
    式子[4]
    Figure PCTCN2014090928-appb-100005
    K=1+(K0-1)×(1-s2),K0=L2/L1
    其中,s2表示所述相应饱和度值,R’表示经色彩增强的R值,G’表示经色彩增强的G值,B’表示经色彩增强的B值,Min(R’,G’,B’)表示R’、G’、B’中的最小值,K表示所述亮度提升系数,L1表示与输入的RGB值对应的最大亮度值,L2表示与输出的WRGB值对应的最大亮度值。
  8. 根据权利要求6所述的转换系统,其中,所述第二计算部件进一步被构造为利用式子5计算出亮度提升的RGB值,
    式子[5]
    Figure PCTCN2014090928-appb-100006
    其中,R’表示经色彩增强的R值,G’表示经色彩增强的G值,B’表示经色彩增强的B值,K表示所述亮度提升系数,R1表示亮度提升的R值,G1表示亮度提升的G值,B1表示亮度提升的B值,γ表示伽马值。
  9. 根据权利要求6所述的转换系统,其中,所述三色确定部件进一步被构造为利用式子6计算出输出的RGB值,
    式子[6]
    Figure PCTCN2014090928-appb-100007
    Rb+Gb+Bb=W2
    其中,R2表示输出的R值,G2表示输出的G值,B2表示输出的B值,W2表示输出的W值,γ表示伽马值,R1表示亮度提升的R值,G1表示亮度提 升的G值,B1表示亮度提升的B值。
  10. 一种RGB数据到WRGB数据的转换方法,其中,包括:
    对输入的RGB值进行色彩增强,以获得经色彩增强的RGB值;
    将所述经色彩增强的RGB值转换为输出的WRGB值。
  11. 根据权利要求10所述的转换方法,其中,所述对输入的RGB值进行色彩增强,以获得经色彩增强的RGB值的方法具体包括:
    将输入的RGB值转换到HSV颜色空间;
    对HSV颜色空间的饱和度值进行正弦处理;
    将HSV颜色空间的色调值、HSV颜色空间的亮度值以及经正弦处理的HSV颜色空间的饱和度值转换为所述经色彩增强的RGB值。
  12. 根据权利要求11所述的转换方法,其中,利用式子1将输入的RGB值转换到HSV颜色空间,
    [式子1]
    Figure PCTCN2014090928-appb-100008
    其他,v=max
    其中,r表示输入的R值,g表示输入的G值,b表示输入的B值,max表示r、g、b中的最大值,min表示r、g、b中的最小值,h表示HSV颜色空间的色调值,s表示HSV颜色空间的饱和度值,v表示HSV颜色空间的亮度值。
  13. 根据权利要求11所述的转换方法,其中,利用式子2对HSV颜色空 间的饱和度值进行正弦处理,
    [式子2]
    Figure PCTCN2014090928-appb-100009
    其中,s1表示经正弦处理的HSV颜色空间的饱和度值,0≤k≤1,s表示HSV颜色空间的饱和度值。
  14. 根据权利要求11所述的转换方法,其中,利用式子3将HSV颜色空间的色调值、HSV颜色空间的亮度值以及经正弦处理的HSV颜色空间的饱和度值转换为所述经色彩增强的RGB值,
    [式子3]
    Figure PCTCN2014090928-appb-100010
    a=v×(1-s1),
    Figure PCTCN2014090928-appb-100011
    其中,h表示HSV颜色空间的色调值,v表示HSV颜色空间的亮度值,s1表示经正弦处理的HSV颜色空间的饱和度值,R’表示经色彩增强的R值,G’表示经色彩增强的G值,B’表示经色彩增强的B值。
  15. 根据权利要求10所述的转换方法,其中,所述将所述经色彩增强的RGB值转换为输出的WRGB值的方法具体包括:
    基于所述经色彩增强的RGB值计算出相应饱和度值和亮度提升系数;
    基于所述亮度提升系数及所述经色彩增强的RGB值计算出亮度提升的RGB值;
    将所述亮度提升的RGB值中的最小值作为输出的W值;
    基于所述亮度提升的RGB值及所述输出的W值计算出输出的RGB值。
  16. 根据权利要求15所述的转换方法,其中,利用式子4计算出相应饱和度值和亮度提升系数,
    式子[4]
    Figure PCTCN2014090928-appb-100012
    K=1+(K0-1)×(1-s2),K0=L2/L1
    其中,s2表示所述相应饱和度值,R’表示经色彩增强的R值,G’表示经色彩增强的G值,B’表示经色彩增强的B值,Min(R’,G’,B’)表示R’、G’、B’中的最小值,K表示所述亮度提升系数,L1表示与输入的RGB值对应的最大亮度值,L2表示与输出的WRGB值对应的最大亮度值。
  17. 根据权利要求15所述的转换方法,其中,利用式子5计算出亮度提升的RGB值,
    式子[5]
    Figure PCTCN2014090928-appb-100013
    其中,R’表示经色彩增强的R值,G’表示经色彩增强的G值,B’表示经色彩增强的B值,K表示所述亮度提升系数,R1表示亮度提升的R值,G1表示亮度提升的G值,B1表示亮度提升的B值,γ表示伽马值。
  18. 根据权利要求15所述的转换方法,其中,利用式子6计算出输出的RGB值,
    式子[6]
    Figure PCTCN2014090928-appb-100014
    Rb+Gb+Bb=W2
    其中,R2表示输出的R值,G2表示输出的G值,B2表示输出的B值,W2表示输出的W值,γ表示伽马值,R1表示亮度提升的R值,G1表示亮度提升的G值,B1表示亮度提升的B值。
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