WO2016095294A1 - 一种rgb数据的转换方法及转换系统 - Google Patents

一种rgb数据的转换方法及转换系统 Download PDF

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WO2016095294A1
WO2016095294A1 PCT/CN2015/070064 CN2015070064W WO2016095294A1 WO 2016095294 A1 WO2016095294 A1 WO 2016095294A1 CN 2015070064 W CN2015070064 W CN 2015070064W WO 2016095294 A1 WO2016095294 A1 WO 2016095294A1
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value
saturation
adjusted
input
color
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French (fr)
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樊勇
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TCL China Star Optoelectronics Technology Co Ltd
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Shenzhen China Star Optoelectronics Technology Co Ltd
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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
    • G09G2320/00Control of display operating conditions
    • G09G2320/06Adjustment of display parameters
    • G09G2320/0626Adjustment of display parameters for control of overall brightness
    • 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
    • G09G2320/06Adjustment of display parameters
    • G09G2320/0666Adjustment of display parameters for control of colour parameters, e.g. colour temperature
    • 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 invention relates to a method and a conversion system for converting RGB data.
  • a display device having, for example, a liquid crystal display panel or an organic light emitting diode (OLED) display panel
  • red (R) sub-pixel units green (G) sub-pixel units
  • blue (B) sub-pixel units make up a pixel unit.
  • R data of the red sub-pixel unit the G data of the green sub-pixel unit
  • B data of the blue sub-pixel unit the color to be displayed by the display panel is mixed to display the color image.
  • the color brilliance exhibited by the display panel is affected, and the color performance is poor.
  • an object of the present invention is to provide a method for converting RGB data, comprising the steps of: A) converting an input RGB value into an HSV color space; and B) maintaining a tone value of the HSV color space. In the case of no change, the saturation value and/or the brightness value are adjusted; C) the color enhanced RGB value is calculated according to the tone value, the saturation value and the brightness value processed after the step B).
  • step B the saturation value and/or the brightness value are adjusted by using Equation 1 and/or Equation 2,
  • a is a constant and a>0
  • b is a constant and b>0
  • s' represents the adjusted saturation value
  • s represents the unadjusted saturation value
  • v′ represents the adjusted brightness value
  • v Indicates an unadjusted brightness value
  • the saturation value and the brightness value are adjusted in step B), in step C), the color-enhanced RGB value is calculated by using Equation 3,
  • h represents the tone value
  • s ' represents the adjusted saturation value
  • v' denotes the adjusted brightness value
  • R' denotes a color enhanced R value
  • G' denotes a color enhanced G value
  • B' denotes a color enhanced B value.
  • the RGB value of the color enhancement is calculated by using Equation 4,
  • v represents an unadjusted luminance value
  • R' represents a color enhanced R value
  • G' represents a color enhanced G value
  • B' represents a color enhanced B value.
  • Equation 5 calculates the RGB value of the color enhancement
  • p v' ⁇ (1-s)
  • q v' ⁇ (1-f ⁇ s)
  • t v′ ⁇ (1-(1-f) ⁇ s)
  • h represents a tone value
  • s represents no
  • v' represents the adjusted brightness value
  • R' represents the color enhanced R value
  • G' represents the color enhanced G value
  • B' represents the color enhanced B value.
  • step A the input RGB value is converted to the HSV color space by using Equation 6.
  • 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 and h is not
  • s represents the unadjusted saturation value
  • v represents the unadjusted brightness value.
  • It is still another object of the present invention to provide a conversion system for RGB data comprising: a conversion unit configured to convert an input RGB value into an HSV color space; and an adjustment unit configured to maintain a hue value of the HSV color space In the case of no change, the saturation value and/or the brightness value are adjusted; the calculation unit is configured to calculate the color enhanced RGB value according to the tone value, the saturation value and the brightness value processed by the adjustment unit.
  • the adjusting unit adjusts the saturation value and/or the brightness value by using Equation 1 and/or Equation 2,
  • a is a constant and a>0
  • b is a constant and b>0
  • s' represents the adjusted saturation value
  • s represents the unadjusted saturation value
  • v′ represents the adjusted brightness value
  • v Indicates an unadjusted brightness value
  • the calculating unit calculates the RGB value of the color enhancement by using Equation 3,
  • h represents the tone value
  • s ' represents the adjusted saturation value
  • v' denotes the adjusted brightness value
  • R' denotes a color enhanced R value
  • G' denotes a color enhanced G value
  • B' denotes a color enhanced B value.
  • the calculation unit calculates the RGB value of the color enhancement by using Equation 4,
  • v represents an unadjusted luminance value
  • R' represents a color enhanced R value
  • G' represents a color enhanced G value
  • B' represents a color enhanced B value.
  • the calculating unit calculates the RGB value of the color enhancement by using Equation 5,
  • p v' ⁇ (1-s)
  • q v' ⁇ (1-f ⁇ s)
  • t v′ ⁇ (1-(1-f) ⁇ s)
  • h represents a tone value
  • s represents no
  • v' represents the adjusted brightness value
  • R' represents the color enhanced R value
  • G' represents the color enhanced G value
  • B' represents the color enhanced B value.
  • the conversion unit converts the input RGB value into the HSV color space by using Equation 6.
  • 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 and h is not
  • s represents the unadjusted saturation value
  • v represents the unadjusted brightness value.
  • the RGB data conversion system and conversion method of the present invention improves the color quality of the display panel by enhancing the saturation and/or brightness of the color.
  • 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 according to an embodiment of the present invention.
  • FIG. 4 is a flow chart of a method of converting RGB 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 a conversion system 4 of RGB data.
  • the display panel 1 includes scanning lines G1 to Gm extending in the row direction (where m is a natural number) and data lines S1 to Sn extending in the column direction (where n is a natural number).
  • the scan lines G1 to Gm are both connected to the scan driver 2, and the data lines S1 to Sn are both connected to the data driver 3.
  • the sub-pixel Lij (red (R) sub-pixel, green (G) sub-pixel, or blue (B) sub-pixel) is disposed by the scan lines Gi, Gi+1 (where i is 1 to m) and the data line Sj, A region defined by Sj+1 (where j is 1 to n), wherein one red (R) sub-pixel, one green (G) sub-pixel, and one blue (B) 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, green (G) sub-pixel or blue (B) sub-pixel
  • the pixel electrode 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 the RGB data converts the input RGB value into a color enhanced RGB value, and supplies the color enhanced RGB 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 color enhanced RGB values of the output from the conversion system 4 of the RGB data to generate analog type data signals and supplies them to the data lines S1 to Sn.
  • the scan driver 2 sequentially supplies a plurality of scan signals to the scan lines G1 to Gm.
  • 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 in accordance with an embodiment of the present invention.
  • a conversion system 4 of RGB data includes a conversion unit 41, an adjustment unit 42, and a calculation unit 43.
  • the conversion unit 41 is configured to convert the input RGB values into an HSV (hue, saturation, brightness) color space.
  • the adjustment unit 42 is configured to adjust the value of the saturation (ie, the saturation value) and/or the value of the brightness (ie, the brightness value) while maintaining the value of the hue of the HSV color space (ie, the hue value). In other words, the adjustment unit 42 is configured to process the hue value, saturation value, and brightness value of the HSV color space.
  • the calculation unit 43 is configured to calculate the color enhanced RGB value based on the tone value, the saturation value, and the brightness value processed by the adjustment unit 42.
  • the conversion unit 41 can convert the input RGB values into the HSV color space using Equation 6 below.
  • 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 not processed by the adjustment unit 42
  • s represents the unadjusted saturation value (ie, the input RGB value is converted to the HSV color)
  • v represents the unadjusted luminance value (i.e., the value of the luminance of the input RGB value converted to the HSV color space, which is not processed by the adjustment unit 42) .
  • the adjustment unit 42 adjusts the saturation value and the brightness value respectively by using Equation 1 and Equation 2 below.
  • a is a constant and a>0
  • b is a constant and b>0
  • s' represents the adjusted saturation value
  • s represents the unadjusted saturation value
  • v′ represents the adjusted brightness value
  • v Indicates an unadjusted brightness value
  • the adjusting unit 42 may adjust the saturation value only by using the formula 1, or adjust the brightness value by using only the formula 2, or use the formula 1 and the formula 2 respectively.
  • the saturation value and the brightness value are adjusted simultaneously.
  • the adjustment unit 42 when the adjustment unit 42 only adjusts the saturation value by using Equation 1, the tone value and the brightness value of the HSV color space remain unchanged; when the adjustment unit 42 only adjusts the brightness value by using Equation 2, The tone value and the saturation value of the HSV color space remain unchanged; when the adjustment unit 42 simultaneously adjusts the saturation value and the brightness value using Equation 1 and Equation 2, respectively, the tone value of the HSV color space remains unchanged. That is to say, the adjustment unit 42 can adjust the saturation value and/or the brightness value by using Equation 1 and/or Equation 2 while keeping the tone value of the HSV color space unchanged.
  • the calculation unit 43 calculates the color-enhanced RGB value using Equation 3 below.
  • h represents the tone value
  • s ' represents the adjusted saturation value
  • v' denotes the adjusted brightness value
  • R' denotes a color enhanced R value
  • G' denotes a color enhanced G value
  • B' denotes a color enhanced B value.
  • the calculation unit 43 calculates the color-enhanced RGB value using Equation 4 below.
  • v represents an unadjusted luminance value
  • R' represents a color enhanced R value
  • G' represents a color enhanced G value
  • B' represents a color enhanced B value.
  • the calculation unit 43 calculates the color enhanced RGB value using Equation 5 below.
  • p v' ⁇ (1-s)
  • q v' ⁇ (1-f ⁇ s)
  • t v′ ⁇ (1-(1-f) ⁇ s)
  • h represents a tone value
  • s represents no
  • v' represents the adjusted brightness value
  • R' represents the color enhanced R value
  • G' represents the color enhanced G value
  • B' represents the color enhanced B value.
  • FIG. 4 is a flow chart of a method of converting RGB data in accordance with an embodiment of the present invention.
  • step 410 the input RGB values are converted to an HSV color space.
  • the input RGB values are converted to the HSV color space using Equation 6 above.
  • step 420 the saturation value and/or the brightness value are adjusted while maintaining the hue value of the HSV color space unchanged.
  • the saturation value and the luminance value are respectively adjusted correspondingly using Equation 1 and Equation 2 described above. It should be understood that the saturation value may be adjusted only by using the above formula 1, or the luminance value may be adjusted only by the above formula 2, or the saturation value may be respectively obtained by using the above equations 1 and 2. Adjust with the brightness value at the same time.
  • the saturation value and the brightness value of the HSV color space remain unchanged; when only the brightness value is adjusted by the above formula 2, the HSV color The tonal value and the saturation value of the space remain unchanged; when the saturation value and the brightness value are simultaneously adjusted by using Equation 1 and Equation 2 described above, respectively, the tone value of the HSV color space remains unchanged. That is to say, the saturation value and/or the brightness value can be adjusted by using Equation 1 and/or Equation 2 while keeping the tone value of the HSV color space unchanged.
  • step 430 the color enhanced RGB values are calculated based on the tone value, the saturation value, and the brightness value processed in step 420.
  • the specific method of calculating the color enhanced RGB value is:
  • step 420 If, in step 420, the saturation value and the luminance value are respectively adjusted by the above-described equations 1 and 2 (i.e., condition 1 in FIG. 4), step 431 is performed.
  • step 431 the color enhanced RGB value is calculated using Equation 3 above.
  • step 420 If in step 420, only the saturation value is adjusted using Equation 1 (ie, the condition in Figure 4) 2), proceed to step 432.
  • step 432 the color enhanced RGB values are calculated using Equation 4 above.
  • step 420 If, in step 420, the luminance value is adjusted using only equation 2 (i.e., condition 3 in FIG. 4), then step 433 is performed. In step 433, the color enhanced RGB value is calculated using Equation 5 above.
  • the RGB data conversion system and the conversion method according to the embodiment of the present invention improve the color quality of the display panel by enhancing the saturation, brightness, and the like of the color.

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Abstract

本发明公开一种RGB数据的转换方法,包括步骤:A)将输入的RGB值转换到HSV颜色空间;B)在保持HSV颜色空间的色调值不变的情况下,调整饱和度值和/或亮度值;C)根据经过步骤B)处理后的色调值、饱和度值及亮度值计算出色彩增强的RGB值。本发明还公开一种RGB数据的转换系统。本发明的RGB数据的转换系统及转换方法,通过增强色彩的饱和度和/或亮度来提高显示面板显示的色彩品质。

Description

一种RGB数据的转换方法及转换系统 技术领域
本发明涉及一种RGB数据的转换方法及转换系统。
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。然而,由于现有的显示面板的色域范围有限,使得其所呈现的色彩绚丽程度受到影响,色彩表现能力差。
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数据的转换方法,包括步骤:A)将输入的RGB值转换到HSV颜色空间;B)在保持HSV颜色空间的色调值不变的情况下,调整饱和度值和/或亮度值;C)根据经过步骤B)处理后的色调值、饱和度值及亮度值计算出色彩增强的RGB值。
进一步地,在步骤B)中,利用式子1和/或式子2调整饱和度值和/或亮度值,
[式子1]
Figure PCTCN2015070064-appb-000001
[式子2]
Figure PCTCN2015070064-appb-000002
其中,a为常数且a>0,b为常数且b>0,s′表示经调整后的饱和度值,s表示未经调整的饱和度值,v′表示经调整后的亮度值,v表示未经调整的亮度值。
进一步地,如果在步骤B)中对饱和度值和亮度值进行调整,则在步骤C)中,利用式子3计算出色彩增强的RGB值,
[式子3]
Figure PCTCN2015070064-appb-000003
其中,
Figure PCTCN2015070064-appb-000004
p=v′×(1-s′),q=v′×(1-f×s′),t=v′×(1-(1-f)×s′),h表示色调值,s′表示经调整后的饱和度值,v′表示经调整后的亮度值,R′表示色彩增强的R值,G′表示色彩增强的G值,B′表示色彩增强的B值。
进一步地,如果在步骤B)中对饱和度值进行调整,则在步骤C)中,利用式子4计算出色彩增强的RGB值,
[式子4]
Figure PCTCN2015070064-appb-000005
其中,
Figure PCTCN2015070064-appb-000006
p=v×(1-s′),q=v×(1-f×s′),t=v×(1-(1-f)×s′),h表示色调值,s′表示经调整后的饱和度值,v表示未经调整的亮度值,R′表示色彩增强的R值,G′表示色彩增强的G值,B′表示色彩增强的B值。
进一步地,如果在步骤B)中对亮度值进行调整,则在步骤C)中,利用 式子5计算出色彩增强的RGB值,
[式子5]
Figure PCTCN2015070064-appb-000007
其中,
Figure PCTCN2015070064-appb-000008
p=v′×(1-s),q=v′×(1-f×s),t=v′×(1-(1-f)×s),h表示色调值,s表示未经调整的饱和度值,v′表示经调整后的亮度值,R′表示色彩增强的R值,G′表示色彩增强的G值,B′表示色彩增强的B值。
进一步地,在步骤A)中,利用式子6将输入的RGB值转换到HSV颜色空间,
[式子6]
Figure PCTCN2015070064-appb-000009
Figure PCTCN2015070064-appb-000010
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表示未经调整的色调值,s表示未经调整的饱和度值,v表示未经调整的亮度值。
本发明的另一目的还在于提供一种RGB数据的转换系统,包括:转换单元,被构造为将输入的RGB值转换到HSV颜色空间;调整单元,被构造为在保持HSV颜色空间的色调值不变的情况下,调整饱和度值和/或亮度值;计算单元,被构造为根据经过所述调整单元处理后的色调值、饱和度值及亮度值计算出色彩增强的RGB值。
进一步地,所述调整单元利用式子1和/或式子2调整饱和度值和/或亮度值,
[式子1]
Figure PCTCN2015070064-appb-000011
[式子2]
Figure PCTCN2015070064-appb-000012
其中,a为常数且a>0,b为常数且b>0,s′表示经调整后的饱和度值,s表示未经调整的饱和度值,v′表示经调整后的亮度值,v表示未经调整的亮度值。
进一步地,如果所述调整单元对饱和度值和亮度值进行调整,则所述计算单元利用式子3计算出色彩增强的RGB值,
[式子3]
Figure PCTCN2015070064-appb-000013
其中,
Figure PCTCN2015070064-appb-000014
p=v′×(1-s′),q=v′×(1-f×s′),t=v′×(1-(1-f)×s′),h表示色调值,s′表示经调整后的饱和度值,v′表示经调整后的亮度值,R′表示色彩增强的R值,G′表示色彩增强的G值,B′表示色彩增强的B值。
进一步地,如果所述调整单元对饱和度值进行调整,则所述计算单元利用式子4计算出色彩增强的RGB值,
[式子4]
Figure PCTCN2015070064-appb-000015
其中,
Figure PCTCN2015070064-appb-000016
p=v×(1-s′),q=v×(1-f×s′),t=v×(1-(1-f)×s′),h表示色调值,s′表示经调整后的饱和度值,v表示未经调整的亮度值,R′表示色彩增强的R值,G′表示色彩增强的G值,B′表示色彩增强的B值。
进一步地,如果所述调整单元对亮度值进行调整,则所述计算单元利用式子5计算出色彩增强的RGB值,
[式子5]
Figure PCTCN2015070064-appb-000017
其中,
Figure PCTCN2015070064-appb-000018
p=v′×(1-s),q=v′×(1-f×s),t=v′×(1-(1-f)×s),h表示色调值,s表示未经调整的饱和度值,v′表示经调整后的亮度值,R′表示色彩增强的R值,G′表示色彩增强的G值,B′表示色彩增强的B值。
进一步地,所述转换单元利用式子6将输入的RGB值转换到HSV颜色空间,
[式子6]
Figure PCTCN2015070064-appb-000019
Figure PCTCN2015070064-appb-000020
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表示未经调整的色调值,s表示未经调整的饱和度值,v表示未经调整的亮度值。
本发明的RGB数据的转换系统及转换方法,通过增强色彩的饱和度和/或亮度来提高显示面板显示的色彩品质。
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数据的转换系统的原理框图;
图4是根据本发明的实施例的RGB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Gm(其中,m为自然数)以及沿列方向延伸的数据线S1至Sn(其中,n为自然数)。扫描线G1至Gm均连接至扫描驱动器2,数据线S1至Sn均连接至数据驱动器3。
子像素Lij(红色(R)子像素、绿色(G)子像素或蓝色(B)子像素)设置在由扫描线Gi、Gi+1(其中,i为1至m)和数据线Sj、Sj+1(其中,j为1至n)限定出的区域中,其中,一个红色(R)子像素、一个绿色(G)子像素和一个蓝色(B)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、绿色(G)子像素或蓝色(B)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数据的转换系统4将输入的RGB值转换为色彩增强的RGB值,并将该色彩增强的RGB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数据的转换系统4的输出的色彩增强的RGB值,以产生模拟类型数据信号并提供给数据线S1至Sn。扫描驱动器2向扫描线G1至Gm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数据的转换系统4进行详细的描述。
图3是根据本发明的实施例的RGB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数据的转换系统4包括:转换单元41、调整单元42、计算单元43。
转换单元41被构造为将输入的RGB值转换到HSV(色调、饱和度、亮度)颜色空间。调整单元42被构造为在保持HSV颜色空间的色调的值(即色调值)不变的情况下,调整饱和度的值(即饱和度值)和/或亮度的值(即亮度值)。换句话说,调整单元42被构造为对HSV颜色空间的色调值、饱和度值及亮度值进行处理。计算单元43被构造为根据调整单元42处理后的色调值、饱和度值及亮度值计算出色彩增强的RGB值。
具体而言,转换单元41可利用下面的式子6将输入的RGB值转换到HSV颜色空间。
[式子6]
Figure PCTCN2015070064-appb-000021
Figure PCTCN2015070064-appb-000022
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表示未经调整的色调值(即输入的RGB值转换到HSV颜色空间的色调的值,其未被调整单元42所处理),s表示未经调整的饱和度值(即输入的RGB值转换到HSV颜色 空间的饱和度的值,其未被调整单元42所处理),v表示未经调整的亮度值(即输入的RGB值转换到HSV颜色空间的亮度的值,其未被调整单元42所处理)。
在保持HSV颜色空间的色调值不变的情况下,调整单元42利用下面的式子1和式子2分别对应调整饱和度值和亮度值。
[式子1]
Figure PCTCN2015070064-appb-000023
[式子2]
Figure PCTCN2015070064-appb-000024
其中,a为常数且a>0,b为常数且b>0,s′表示经调整后的饱和度值,s表示未经调整的饱和度值,v′表示经调整后的亮度值,v表示未经调整的亮度值。
应当理解的是,在本实施例中,调整单元42可只利用式子1对饱和度值进行调整,或者只利用式子2对亮度值进行调整,或者利用式子1和式子2分别对饱和度值和亮度值同时调整。换句话说,当调整单元42只利用式子1对饱和度值进行调整时,HSV颜色空间的色调值和亮度值保持不变;当调整单元42只利用式子2对亮度值进行调整时,HSV颜色空间的色调值和饱和度值保持不变;当调整单元42利用式子1和式子2分别对饱和度值和亮度值同时进行调整时,HSV颜色空间的色调值保持不变。也就是说,在保持HSV颜色空间的色调值不变的情况下,调整单元42可利用式子1和/或式子2对饱和度值和/或亮度值进行调整。
如果调整单元42利用式子1和式子2分别对饱和度值和亮度值进行调整,则计算单元43利用下面的式子3计算出色彩增强的RGB值。
[式子3]
Figure PCTCN2015070064-appb-000025
其中,
Figure PCTCN2015070064-appb-000026
p=v′×(1-s′),q=v′×(1-f×s′),t=v′×(1-(1-f)×s′),h表示色调值,s′表示经调整后的饱和度值,v′表示经调整后的亮度值,R′表示色彩增强的R值,G′表示色彩增强的G值,B′表示色彩增强的B值。
如果调整单元42利用式子1对饱和度值进行调整,则计算单元43利用下面的式子4计算出色彩增强的RGB值。
[式子4]
Figure PCTCN2015070064-appb-000027
其中,
Figure PCTCN2015070064-appb-000028
p=v×(1-s′),q=v×(1-f×s′),t=v×(1-(1-f)×s′),h表示色调值,s′表示经调整后的饱和度值,v表示未经调整的亮度值,R′表示色彩增强的R值,G′表示色彩增强的G值,B′表示色彩增强的B值。
如果调整单元42利用式子2对亮度值进行调整,则计算单元43利用下面的式子5计算出色彩增强的RGB值。
[式子5]
Figure PCTCN2015070064-appb-000029
其中,
Figure PCTCN2015070064-appb-000030
p=v′×(1-s),q=v′×(1-f×s),t=v′×(1-(1-f)×s),h表示色调值,s表示未经调整的饱和度值,v′表示经调整后的亮度值,R′表示色彩增强的R值,G′表示色彩增强的G值,B′表示色彩增强的B值。
图4是根据本发明的实施例的RGB数据的转换方法的流程图。
参照图4,在步骤410中,将输入的RGB值转换到HSV颜色空间。在该步骤中,利用上述的式子6将输入的RGB值转换到HSV颜色空间。
在步骤420中,在保持HSV颜色空间的色调值不变的情况下,调整饱和度值和/或亮度值。在该步骤中,利用上述的式子1和式子2分别对应调整饱和度值和亮度值。应当理解的是,可只利用上述的式子1对饱和度值进行调整,或者只利用上述的式子2对亮度值进行调整,或者利用上述的式子1和式子2分别对饱和度值和亮度值同时调整。换句话说,当只利用上述的式子1对饱和度值进行调整时,HSV颜色空间的色调值和亮度值保持不变;当只利用上述的式子2对亮度值进行调整时,HSV颜色空间的色调值和饱和度值保持不变;当利用上述的式子1和式子2分别对饱和度值和亮度值同时进行调整时,HSV颜色空间的色调值保持不变。也就是说,在保持HSV颜色空间的色调值不变的情况下,可利用式子1和/或式子2对饱和度值和/或亮度值进行调整。
在步骤430中,根据经过步骤420处理后的色调值、饱和度值及亮度值计算出色彩增强的RGB值。在该步骤中,计算色彩增强的RGB值的具体方法为:
如果在步骤420中,利用上述的式子1和式子2分别对饱和度值和亮度值进行调整(即图4中的条件1),则进行步骤431。在步骤431中,利用上述的式子3计算出色彩增强的RGB值。
如果在步骤420中,只利用式子1对饱和度值进行调整(即图4中的条件 2),则进行步骤432。在步骤432中,利用上述的式子4计算出色彩增强的RGB值。
如果在步骤420中,只利用式子2对亮度值进行调整(即图4中的条件3),则进行步骤433。在步骤433中,利用上述的式子5计算出色彩增强的RGB值。
综上所述,根据本发明的实施例的RGB数据的转换系统及转换方法,通过增强色彩的饱和度、亮度等来提高显示面板显示的色彩品质。
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 (16)

  1. 一种RGB数据的转换方法,其中,包括步骤:
    A)将输入的RGB值转换到HSV颜色空间;
    B)在保持HSV颜色空间的色调值不变的情况下,调整饱和度值和/或亮度值;
    C)根据经过步骤B)处理后的色调值、饱和度值及亮度值计算出色彩增强的RGB值。
  2. 根据权利要求1所述的转换方法,其中,在步骤B)中,利用式子1和/或式子2调整饱和度值和/或亮度值,
    [式子1]
    Figure PCTCN2015070064-appb-100001
    [式子2]
    Figure PCTCN2015070064-appb-100002
    其中,a为常数且a>0,b为常数且b>0,s′表示经调整后的饱和度值,s表示未经调整的饱和度值,v′表示经调整后的亮度值,v表示未经调整的亮度值。
  3. 根据权利要求2所述的转换方法,其中,如果在步骤B)中对饱和度值和亮度值进行调整,则在步骤C)中,利用式子3计算出色彩增强的RGB值,
    [式子3]
    Figure PCTCN2015070064-appb-100003
    其中,
    Figure PCTCN2015070064-appb-100004
    p=v′×(1-s′),q=v′×(1-f×s′),t=v′×(1-(1-f)×s′),h表示色调值,s′表示经调整后的饱和度值,v′表示经调整后的亮度值,R′表示色彩增强的R值,G′表示色彩增强的G值,B′表示色彩增强的B值。
  4. 根据权利要求2所述的转换方法,其中,如果在步骤B)中对饱和度值进行调整,则在步骤C)中,利用式子4计算出色彩增强的RGB值,
    [式子4]
    Figure PCTCN2015070064-appb-100005
    其中,
    Figure PCTCN2015070064-appb-100006
    p=v×(1-s′),q=v×(1-f×s′),t=v×(1-(1-f)×s′),h表示色调值,s′表示经调整后的饱和度值,v表示未经调整的亮度值,R′表示色彩增强的R值,G′表示色彩增强的G值,B′表示色彩增强的B值。
  5. 根据权利要求2所述的转换方法,其中,如果在步骤B)中对亮度值进行调整,则在步骤C)中,利用式子5计算出色彩增强的RGB值,
    [式子5]
    Figure PCTCN2015070064-appb-100007
    其中,
    Figure PCTCN2015070064-appb-100008
    p=v′×(1-s),q=v′×(1-f×s),t=v′×(1-(1-f)×s),h表示色调值,s表示未经调整的饱和度值,v′表示经调整后的亮度值,R′表示色彩增强的R值,G′表示色彩增强的G值,B′表示色彩增强的B值。
  6. 根据权利要求3所述的转换方法,其中,在步骤A)中,利用式子6将输入的RGB值转换到HSV颜色空间,
    [式子6]
    Figure PCTCN2015070064-appb-100009
    Figure PCTCN2015070064-appb-100010
    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表示未经调整的色调值,s表示未经调整的饱和度值,v表示未经调整的亮度值。
  7. 根据权利要求4所述的转换方法,其中,在步骤A)中,利用式子6将输入的RGB值转换到HSV颜色空间,
    [式子6]
    Figure PCTCN2015070064-appb-100011
    Figure PCTCN2015070064-appb-100012
    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表示未经调整的色调值,s表示未经调整的饱和度值,v表示未经调整的亮度值。
  8. 根据权利要求5所述的转换方法,其中,在步骤A)中,利用式子6将输入的RGB值转换到HSV颜色空间,
    [式子6]
    Figure PCTCN2015070064-appb-100013
    Figure PCTCN2015070064-appb-100014
    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表示未经调整的色调值,s表示未经调整的饱和度值,v表示未经调整的亮度值。
  9. 一种RGB数据的转换系统,其中,包括:
    转换单元,被构造为将输入的RGB值转换到HSV颜色空间;
    调整单元,被构造为在保持HSV颜色空间的色调值不变的情况下,调整饱和度值和/或亮度值;
    计算单元,被构造为根据经过所述调整单元处理后的色调值、饱和度值及亮度值计算出色彩增强的RGB值。
  10. 根据权利要求9所述的转换系统,其中,所述调整单元利用式子1和/或式子2调整饱和度值和/或亮度值,
    [式子1]
    Figure PCTCN2015070064-appb-100015
    [式子2]
    Figure PCTCN2015070064-appb-100016
    其中,a为常数且a>0,b为常数且b>0,s′表示经调整后的饱和度值,s表示未经调整的饱和度值,v′表示经调整后的亮度值,v表示未经调整的亮度值。
  11. 根据权利要求10所述的转换系统,其中,如果所述调整单元对饱和度值和亮度值进行调整,则所述计算单元利用式子3计算出色彩增强的RGB值,
    [式子3]
    Figure PCTCN2015070064-appb-100017
    其中,
    Figure PCTCN2015070064-appb-100018
    p=v′×(1-s′),q=v′×(1-f×s′),t=v′×(1-(1-f)×s′),h表示色调值,s′表示经调整后的饱和度值,v′表示经调整后的亮度值,R′表示色彩增强的R值,G′表示色彩增强的G值,B′表示色彩增强的B值。
  12. 根据权利要求10所述的转换系统,其中,如果所述调整单元对饱和度值进行调整,则所述计算单元利用式子4计算出色彩增强的RGB值,
    [式子4]
    Figure PCTCN2015070064-appb-100019
    其中,
    Figure PCTCN2015070064-appb-100020
    p=v×(1-s′),q=v×(1-f×s′),t=v×(1-(1-f)×s′),h表示色调值,s′表示经调整后的饱和度值,v表示未经调整的亮度值,R′表示色彩增强的R值,G′表示色彩增强的G值,B′表示色彩增强的B值。
  13. 根据权利要求10所述的转换系统,其中,如果所述调整单元对亮度值进行调整,则所述计算单元利用式子5计算出色彩增强的RGB值,
    [式子5]
    Figure PCTCN2015070064-appb-100021
    其中,
    Figure PCTCN2015070064-appb-100022
    p=v′×(1-s),q=v′×(1-f×s),t=v′×(1-(1-f)×s),h表示色调值,s表示未经调整的饱和度值,v′表示经调整后的亮度值,R′表示色彩增强的R值,G′表示色彩增强的G值,B′表示色彩增强的B值。
  14. 根据权利要求11所述的转换系统,其中,所述转换单元利用式子6将输入的RGB值转换到HSV颜色空间,
    [式子6]
    Figure PCTCN2015070064-appb-100023
    Figure PCTCN2015070064-appb-100024
    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表示未经调整的色调值,s表示未经调整的饱和度值,v表示未经调整的亮度值。
  15. 根据权利要求12所述的转换系统,其中,所述转换单元利用式子6将输入的RGB值转换到HSV颜色空间,
    [式子6]
    Figure PCTCN2015070064-appb-100025
    Figure PCTCN2015070064-appb-100026
    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表示未经调整的色调值,s表示未经调整的饱和度值,v表示未经调整的亮度值。
  16. 根据权利要求13所述的转换系统,其中,所述转换单元利用式子6将输入的RGB值转换到HSV颜色空间,
    [式子6]
    Figure PCTCN2015070064-appb-100027
    Figure PCTCN2015070064-appb-100028
    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表示未经调整的色调值,s表示未经调整的饱和度值,v表示未经调整的亮度值。
PCT/CN2015/070064 2014-12-18 2015-01-04 一种rgb数据的转换方法及转换系统 Ceased WO2016095294A1 (zh)

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