Around us, the application of light emitting diodes (LEDs) is becoming more and more widespread. They can provide back lighting for communication keyboards … the use of large flat-panel displays is becoming more and more popular … helping improve safety when used in car brake lights and turn signals. LEDs are "instant light" devices. When you are traveling at 96 km / h (60 mph), if the car in front of you is equipped with LED brake lights, you will be able to gain an additional 4.6 meters (15 feet) of braking time.

The LED industry is seeking to improve the light output, reliability and lifetime of LEDs and devices using LED technology. silicone encapsulants can provide these benefits while minimizing their environmental impact.

LED semiconductor "chips" are packaged in a variety of structures that emit specific colors of light. The chip must be packaged to increase direct light output and protect the chip from dust, moisture, and mechanical damage. Traditional encapsulation materials such as epoxy are easy to discolor and have soldering temperature restrictions, which have limited the application of LED technology. Customers' favorite high-brightness LEDs will generate too much heat on the chip surface, which will have a more adverse effect on the surrounding potting compound.

However, silicone resins can absorb heat. At present, high-brightness LEDs encapsulated in silicone are increasingly used in mobile phones, televisions, computer screens, traffic lights, automotive interior and exterior lighting, and other applications.