What Is Led？

January 07, 2023

What Is Led？

High quality Led Point Light source is a new type of decorative light, is a supplement of linear light source and flood lighting, stable and reliable performance. The pixel spacing of smart lamps that can replace certain specifications of display screen by point and surface effect through pixel color mixing: the distance from the center of one pixel to the center of another pixel, that is, we now call "P several", such as P3, P6,...... ; Point distance is the distance between two pixels to reflect the pixel density, point distance and pixel density are the physical characteristics of the flash screen; Information capacity is the quantitative unit of information carrying capacity per unit area pixel density. The smaller the point distance is, the higher the pixel density is, the more one-time flash information capacity per unit area is, and the closer the suitable viewing distance is. The larger the point distance is, the lower the pixel density is, the less the one-time flash information capacity per unit area is, and the longer the suitable viewing distance is.

High-quality LED, namely light-emitting diode, is a light-emitting device made of semiconductor homogeneous PN junction, heterogeneous PN junction, metal-semiconductor (MS) junction and metal-insulator-semiconductor (MIS) junction. Its working principle and some electrical characteristics are the same as those of general crystal diodes, but the crystal material used is different. LED includes visible light, invisible light, laser and other different types, visible light LED is common in life. The light emitting color of the LED is determined by the material used. At present, there are yellow, green, red, orange, blue, purple, cyan, white, full color and other colors, which can be made into rectangles, circles and other shapes. LED has the advantages of long life, small body weight, small power consumption (energy saving), low cost, and low working voltage, high luminous efficiency, very short luminous response time, wide operating temperature range, pure light color, solid structure (impact resistance, vibration resistance), stable and reliable performance and a series of characteristics, much favored by people.
Reliable Performance Led

Because the luminous body of LED is close to the "point" light source, the lamp design is more convenient, but if it is used as a large area display, the current and power consumption are large. High quality LED can generally be used in electronic equipment indicator lights, digital tubes, display boards and other display devices and optocouplers, also commonly used in optical communication, and building contour, amusement park, billboard, street, stage and other places of decoration, stable and reliable performance.

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