The largest LED display in the world is currently in Times Square, Manhattan, New York. LED backlights are very suitable for LCD backlights because of their small size and low power consumption. The unity of color is the inherent characteristic of LED. It emits a very pure color in a very narrow frequency. This color is calculated by wavelength (LPK) (NM).
Wavelength is an inherent characteristic of LED chip materials. Different materials have different wavelengths, that is, different colors. We know that white light is a synthesis of all colors, but people’s eyes do not need the synthesis of all the colors in the spectrum, only three colors (red, green, blue). Based on this principle, people have thought of many methods to manufacture white light LEDs. The most typical manufacturing method is to bury a galvanized zinc blue LED in a phosphor that emits yellow light.
