LED device having improved light output

Details LED device having improved light output LED device having improved light output

2007-10-22

2011-11-22

Roy, Sikha (Department: 2879)

Electric lamp and discharge devices

With luminescent solid or liquid material

Solid-state type

C313S504000, C313S506000, C445S024000

Reexamination Certificate

active

08063552

ABSTRACT:
A light-emitting optical cavity light-emitting diode device, comprising:a) a substrate;b) a reflective electrode formed over the substrate;c) an unpatterned light-emitting layer formed over the reflective electrode;d) a transparent electrode formed over the unpatterned light-emitting layer;e) one or more different optical spacers, defining at least two different optical path lengths, are formed in different locations over the substrate, between the reflective electrode and the transparent electrode; andf) a low-index layer formed over the transparent electrode.

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Machine English translation of JP 2002-278477 to Yokogawa et al.

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