In this paper formulas are derived describing the light extraction efficiency of the transparent perpendicular parallelepiped optical cavities in LED displays. The efficiency is calculated for a mirror-wall cavity and for a cavity having walls formed by an air-epoxy interface. Results show that optical efficiencies of these cavities are almost identical and equal to approximately 13%.
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| http://dx.doi.org/10.1364/AO.21.003184 | DOI Listing |
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