LIGHT EMITTING DIODE HAVING DIELECTRIC LAYER

摘要

Disclosed is a light emitting diode having a dielectric layer capable of extending the luminescence distribution of light emitted from a light exiting surface and improving optical power. The diode includes a complex dielectric layer formed by combining a first dielectric layer where long wavelength dielectric layer/high transmissivity dielectric layer are repeatedly stacked with a second dielectric layer where short wavelength dielectric layer/high transmissivity dielectric layer are repeatedly stacked. A desired complex dielectric layer is formed by combining a first dielectric layer where TiO2 layer/SiO2 layer are repeatedly stacked with a second dielectric layer where Ta2O5/SiO2 are repeatedly stacked.