Led Application Design ( Nine) -- Three Color Led Driving Principle And Application Ic Circuit Desig

We will be the most simple, optimized color way as full-color display technology

, design of color reproduction method. The white balance is one of the important signs of test color components. Three color white is generally red green blue three basic colour brightness proportion, when the light is green with 69% luminance brightness, red21%, blue the brightness of 10%, blending human eyes feel is pure white. The earlier CRT TV is now LCD liquid crystal display is composed of LED, certainly will mature technology copy.

LED Flood Light Supplier red, green, blue chromaticity coordinates for process reasons cannot reach the chromatographic effect, while the control colors comprises a deviation of the color brightness white light, known as color. When LED full color display screen color, in order to achieve the optimal brightness and the lowest cost, should choose RGB LED strength is approximately 3: 6:1ratio of LED devices composed of pixels. White balance requirements of three primary colors in the same allocation value synthesis is still pure white. Single LED fluorescent lighting is difficult to achieve, in order to solve these problems, the general design of IC will set the current size of the function, for different batches LED can achieve the same effect of white light.

We usually put can be synthesized color called, color; in the application of the red, green, and blue color called, Gezer. In the chromaticity diagram three vertices for ideal primary color wavelength. If the color deviation, can be synthesized color regions can be reduced, the spectral form in the triangle will be reduced, from the visual angle of view not only have the deviation, color, rich degree of reduction, see below.

flexible led strip lighting issued a red, green, and blue light according to the different characteristics of wavelength can be roughly divided into pure red, orange, purple, orange, orange, yellow, green, green, green, blue and green, blue, purple, blue, orange, yellow, blue and purple is pure red, pure green, pure blue price on a lot cheaper. The three primary colors of green is most important, because green took white in 69% brightness, color and in horizontal rows list center. Therefore the trade-off between purity of color and price relationship between the two, the green is considered on the object.

by:becky

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