Outdoor LED display, light emitting diode (abbreviation of light emitting diode). It is a kind of diode made by compound of gallium (Ga), arsenic (As), phosphorus (P), nitrogen (N), and indium (In) by controlling the display mode of semiconductor light-emitting diodes. It can radiate visible light when combined, so it can be used to make light-emitting diodes. It is used as indicator light in circuits and instruments, or composed of text or digital display. Phosphor gallium arsenide diodes emit red light, gallium phosphide diodes emit green light, silicon carbide diodes emit yellow light, and indium gallium nitride diodes emit blue light.
The display screen made by putting red and green LED chips or tubes together as a pixel is called a three-color or dual-color screen. Putting red, green, and blue LED chips or tubes together as a pixel display The screen is called a three-color screen or a full-color screen. If there is only one color, it is called a monochromatic or single-color screen. The pixel size for indoor LED screens is generally 1.5-12 mm. It is often used to package several LED dies that can produce different primary colors into a whole. Outdoor LED screen pixels The size is mostly 6-41.5 mm, and each pixel is composed of a number of various monochrome LEDs. The common finished product is called a pixel tube. The two-color pixel tube is generally composed of 2 red and 1 green, and the three-color pixel tube uses 1 red and 1 Green 1 blue composition.
