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Anonymous users2024-02-06RGB is from the color.
The principle of luminescence is designed, and it is said that its color mixing method is like red, green, and blue lights, when their light is superimposed on each other, the colors are mixed, and the brightness is equal to the sum of the brightness of the two, the more mixed the brightness, the higher the brightness, that is, the addition mixing. The superposition of red, green and blue lights, the brightest superposition area of the central three colors is white, and the characteristics of additive mixing: the more superimposed the brighter.
The red, green, and blue color channels are each divided into 256 levels of brightness, with the "light" being the weakest at 0 – it is turned off, and the "light" being brightest at 255. When the gray values of the three colors are the same, different gray values are generated.
The gray tone, that is, when the gray scale of all three colors is 0, is the darkest black tone; When all three colors of gray are 255, it is the brightest white tone.
RGB colors are called addition colors because you create white by adding R, G, and B together (i.e., all the light is reflected back to the eye). Additive colors are used in lighting light, television, and computer monitors. For example, displays are passed through red, green, and blue phosphors.
Emitted light produces color. The vast majority of the visible spectrum can be expressed as a mixture of red, green, and blue (RGB) light at different proportions and intensities. When these colors overlap, they produce cyan, magenta, and yellow. Press the light-emitting diode.
The unit connection method can be divided into common anode digital tube and common cathode digital tube. The common anode digital tube refers to the digital tube that connects the anode of all light-emitting diodes together to form a common anode (COM), the common anode digital tube should be connected to +5V when the common electrode is in application, when the cathode of a certain field of light-emitting diode is low, the corresponding field will be lit, and the cathode of a certain field is high.
, the corresponding field will not light up. The common cathode digital tube refers to the digital tube that connects the cathode of all light-emitting diodes together to form a common cathode (com), the common cathode digital tube should be connected to the ground wire GND when the common cathode digital tube is applied, when the anode of a certain field is high, the corresponding field will be lit, and when the anode of a field is low, the corresponding field will not be lit. <>
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Anonymous users2024-02-05First of all, the principle of three primary colors, red, green and blue three primary colors can mix out most of the colors in nature, so the color-changing LED lights you said are installed with red, green, blue three colors of LED, the simplest color change such as red light and blue light together is purple, red and green together is yellow, in turn there are blue, white, so that there is a rainbow, if red, green and blue each color is divided into 256 gray levels (you can understand that from dark to light is divided into 256 brightness levels), so that you can form the so-called full color, The key is how to accurately control the grayscale of red, green and blue colors to mix the required colors, in order to achieve this purpose, you can add an integrated circuit to the lamp, and accurately control the grayscale level of the red, green and blue colors through pulse width modulation to achieve color change. <>
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Anonymous users2024-02-04LED light dimming (color changing) principle:
It can emit yellow, violet, and cyan colors (such as red and blue LEDs emit purple light when lit up by three primary color LEDs); When red, green, and blue LEDs are lit at the same time, it produces white light. If there is a circuit that can make the red, green, and blue LEDs light up in twos and twos respectively, light up separately and light up the three primary colors at the same time, then he can emit seven different colors of light, so there is this phenomenon of colorful LED lights.
The color-changing light is composed of three primary color LEDs: red (R), green (G), and blue (B). Bi-color LEDs are very familiar to us. It is generally composed of red LEDs and green LEDs.
It can emit red or green light on its own. If the red light and the green light are bright at the same time, the red and green light will be mixed into orange and yellow.
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