Light emitting diodes with high external quantum efficiency.

摘要

A surface emitting light emitting diode (LED) has a reflecting element (24; 22) to redirect light emitted away from the light emitting region towards an exit window (30). The LED bottom contact (24) is formed over the reflecting element (24; 22) and a current confining path is set up within the LED to funnell current between the top and bottom contacts (24; 28) around the reflecting (24; 22) element and through the light emitting region (32).