Light emitting diodes with high external quantum efficiency

Details Light emitting diodes with high external quantum efficiency Light emitting diodes with high external quantum efficiency

1980-09-15

1982-08-03

Segal, Robert

Electric lamp and discharge devices

With luminescent solid or liquid material

Solid-state type

313113, H01J 170

Patent

active

043429440

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

REFERENCES:
patent: 3416047 (1968-12-01), Beale et al.
patent: 3493811 (1970-02-01), Ewing
patent: 3576586 (1971-08-01), Ross
patent: 4279690 (1981-07-01), Dierschke

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