From the discovery of LED effect in 1907 to the formal invention of LED by Nakamura Xiuji in 1993. Nearly a hundred years of evolution contributed to the application of LED technology, which is a great breakthrough in the history of human lighting after Edison invented incandescent bulbs. LED chips have the advantages of long service life, environmental protection and maintenance-free, which helped to quickly replace the position of incandescent lamps. RGB LED chips
are widely used in many LED bead products.RGB patch LED chips are mainly used in soft LED strips, hard LED strips, LED modules, LED backlight and so on.
Parameters and Application of RGB LED chip
1. RGB LED chip
is 5 mm*5 mm*1.6 mm, with high light intensity (pure white light, slightly slightly warm light).
Because the parameters of RGB patch LED chip has determined that it must be a popular LED, so it is often used in high-end civil energy-saving lamps, automobile dashboards, led bands, mobile phone backlights and keys, instrument backlights and products requiring small size LED, flat backlights of LED backlights, switches and signs, caller displays, flashlights, automobiles, audio, indoor display screens, lighting markets.
2. Types of chip-mounted LED chips
There are monochrome white light and monochrome red, green, blue and other color light series. There are also RGB, RGY, RRG, RGBW and other three-color and four-color beads with IC flash and slow flash.
3. Selection and Purchasing Tips of SMD LED package
Product packaging and trademark: Good RGB patch LED chips should have basic technical parameters such as wavelength, drive current, lumen, brand trademark and related certification marks. Regular enterprises can provide corresponding testing data.
Look at the quality of FPC: FPC is divided into copper cladding and calendered copper. Copper foil cladding copper sheet is protruding. If you look closely, you can see from the connection between the pad and FPC.
Look at solder joints: The normal process is SMD patch process, with solder paste and reflow soldering process. The solder joint is smooth.
Look at colloids: colloids are generally epoxy resins. The price of adding anti-ultraviolet and fire-retardants is more expensive. High-quality outdoor lamp beads should be anti-ultraviolet and fire-retardant.