Use substrate microfabrication double LED brightness

Japanese prince holdings announced, they have established the particles precision coating technology also microfabrication technology, and successfully make the doubled brightness of the LED and the organic EL element. The company indicated, sapphire substrate use for LED after process of this technology will on market in 2016. They show the organic EL element and LED on LED Next Stage 2014 in Tokyo Japan.

Recently, many high-efficiency LED is processed using a surface fine concavo-convex sapphire substrate or wavy "PSS (Patterned Sapphire Substrate)". There are a large number of cases indicate that with the PSS that the gallium nitride (GaN) crystal on the substrate more easily reflect light, can improve the light extraction efficiency of the LED, the light emitting efficiency can be increased from 20 to 30%.

article source from LED bulb