System for converting RGB three colors to RGBW four colors
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A color and gray value technology, applied in the field of color space conversion system, can solve the problems of high power, low energy saving, mixed light saturation and brightness inconsistency, etc.
Active Publication Date: 2010-10-13
深圳磊飞照明科技有限责任公司
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[0003] In view of the above problems, the present invention provides a system for converting RGB three-color to RGBW four-color, which solves the problems of inconsistency in saturation and brightness of mixed light in the prior art, as well as high power and no energy saving.
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specific Embodiment 1
[0064] Such as Figures 1 to 3 As shown, the present invention provides a system of RGB (red, green, blue) three-color to RGBW (red, green, blue and white) four-color, and the system includes an input unit, a processing unit and a control unit;
[0065] The input unit is a keyboard connected to the processing unit for inputting gray values of R, G, and B;
[0066] The processing unit is used for:
[0067] Convert the R, G, B gray value input from the input unit to the R, G, B, W gray value,
[0068] Judging whether the gray value of the group is not less than zero,
[0069] If so, then judge whether the grayscale value of W is greater than the highest grayscale level: if so, then convert the grayscale value of this group and output; otherwise, output the effective value of the grayscale value of this group; the effective value refers to each grayscale value A value within the value range;
[0070] Otherwise, re-convert R, G, and B gray values to R, G, B, and W gray val...
specific Embodiment 2
[0124] The difference between this embodiment and the specific embodiment one is:
[0125] The order in which the processing unit sets zeros to R, G, and B respectively may also be R, B, and G.
specific Embodiment 3
[0126] The difference between this embodiment and specific embodiment one and two is:
[0127] The order in which the processing unit sets zeros to R, G, and B respectively may also be G, R, and B.
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Abstract
The invention provides a system for converting RGB three colors (red, green and blue) to RGBW four colors (red, green, blue and white). The system comprises an input unit, a processing unit and a control unit, wherein the input unit is used for inputting the gray value of R, G and B; the processing unit is used for converting the gray value of R, G and B received by the input unit into the gray value of R, G, B and W and outputting the gray value; and the control unit is used for receiving the output value of the processing unit and controlling the execution of LED equipment according to the output value. The system for converting three colors to four colors ensures the complete consistency of the saturation and the brightness of mixed light, has low power and saves energy, and additionally, the service life of the system is prolonged because the heat productivity of hardware is low.
Description
【Technical field】 [0001] The invention relates to a color space conversion system, in particular to a system for converting RGB three colors to RGBW four colors. 【Background technique】 [0002] In terms of LED applications, due to the low light mixing efficiency of the RGB three-color system and the poor color rendering of the mixed white light, people gradually use the RGBW four-color system to replace the RGB three-color system. White LEDs not only have high luminous efficiency, but also The color rendering is also relatively high, and the RGBW system can fully realize the functions realized by the RGB system. The current RGBW four-color system mostly uses white light to compensate for RGB mixed light. Although this method is simple and can improve the brightness of the entire mixed light, simply adding white light will cause uncontrollable deviations in the original RGB mixed light. , this kind of saturation and brightness inconsistent deviation is often unacceptable. In...
Claims
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