The Luminous Principle of Two -color LED Lamp Beads

The light -emitting diode is usually referred to as LED lamp beads, which are made of compounds such as 镓 (GA), arsenic (AS), phosphorus (P), nitrogen (n). When the electron and the cavity are compounded, it can radiate visible light, so it can be used to make a light -emitting diode. LED lamp beads are usually applied in circuits and instruments as indicator lights, or form or digital display. The luminous color and luminous efficiency of LED light -emitting diode are related to the materials and processes of making LEDs. At present, LED lamp beads with three colors of red, green, and blue light widely used. The wavelength range of different colors is also different. Generally, the PN pressure decrease can be determined to determine the wavelength color of the glow diodes. 1. What are the encapsulation structure of the two -color LED light -emitting diode?. The reason why the two -color LED light -emitting diode can emit two colors of light is mainly to pack two different colors of chips in the same bracket. Simply put, its structure is beside the tube core of ordinary monochrome emitting diode, and then install another color tube core. The two -color LED can be divided into two feet without polar two -color LED lamp beads, and two -legged co -yin -yang two -color LED lamp beads. Second, the luminous principle of the luminous diode of the influence of the influence of the inflexible two -color LED luminous diode is two pins. For example, there are two pins in the red and green non -polarized LED LED glowing diodes. Extreme and short foot welding, n pole and long foot welding. When the current flows from long feet to short feet, the red and green double -colored LED lamp beads work normally, and the green light does not work because the current flows from the short foot to the long foot, the green light bead of the non -polar red and green double -colored LED lamps is normal, the green light is normal Work, red lights do not work, so as to achieve the purpose of controlling the current flow of two colors of red and green. Three, three -legged co -yin -co -aode two -color LED lamp beads of light beads, three -legged two -color LED light -emitting diode, two different colors of tube cores share one pole. The three pins are different, and the longest public foot in the middle is the public end. Three -foot and two -color LED lamp beads can be divided into two types: common cathode and common anode LED according to the different polarity of the public end pins. So. How to distinguish between three -legged two -color LED luminous diode polarity? The distinction between the Communist Yin and the yang is mainly to see the positive and negative poles of the longest public end pin. If the public pin is negative, it is the Gongchen pole LED LED light -emitting diode. LED current generally flows from the positive electrode, and the negative electrode flows out. Back to list