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Resonant Cavity Electroluminescent Backlights
Author(s) -
Rothberg Lewis J.,
Jordan Rebecca H.,
Dodabalapur Ananth,
Slusher Richart E.
Publication year - 1998
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1889/1.1833735
Subject(s) - resonant cavity , electroluminescence , optoelectronics , materials science , diode , light emitting diode , fluorescence , optics , collimated light , physics , nanotechnology , laser , layer (electronics)
Resonant cavity design of organic light‐emitting diodes can be used to make non‐Lambertian sources which have forwarded directed emission well‐suited to applications as backlights for liquid crystal displays. These do not require the cumbersome collection and collimation optics associated with fluorescent lamps. They can therefore be extremely thin, and they operate with low voltage, and potentially have intrinsically polarized emission. The theory for describing the performance of resonant cavity devices emitters is outlined and applied to a model case. Experimental results illustrating forward enhancement of the emission are presented. We also discuss one difficulty with this approach associated with how cavities are preferentially resonant for different colors.