US 7,321,193 B2
Device structure for OLED light device having multi element light extraction and luminescence conversion layer
Homer Antoniadis, Mountain View, Calif. (US); and Benjamin Claus Krummacher, Regensburg (Germany)
Assigned to Osram Opto Semiconductors GmbH, Regensburg (Germany)
Filed on Feb. 01, 2006, as Appl. No. 11/345,795.
Application 11/345795 is a continuation in part of application No. 11/264516, filed on Oct. 31, 2005.
Prior Publication US 2007/0159061 A1, Jul. 12, 2007
Int. Cl. H01J 1/62 (2006.01)
U.S. Cl. 313—501  [313/506] 39 Claims
OG exemplary drawing
 
1. An electroluminescent apparatus, comprising:
a light source comprising a transparent layer capable of at least partially transmitting light out from said light source; and
a multi-element light extraction and luminescence conversion layer disposed over said transparent layer and on the exterior of said light source, said multi-element light extraction and luminescence conversion layer comprising a plurality of light extraction elements and a plurality of luminescence conversion elements, wherein:
said light extraction elements diffuse said light from said light sources,
said luminescence conversion elements absorb a first spectrum of light from said light source and emit a second spectrum of light, the second spectrum of light being different from the first spectrum of light, and
said light extraction elements and luminescence conversion elements are laterally adjacent to one another and directly adjacent to said transparent layer so that each of the light extraction elements and luminescence conversion elements contacts the transparent layer.