Abstract
Light-emitting diodes (LEDs) have numerous advantages,
such as long lifetime, large color gamut, small size,
and absence of mercury vapor. In recent years, there has
been recognition that high brightness LED could be an
alternative light source for projection display
application. In this work, dielectric compound parabolic
concentrators (CPCs) were designed and optimized for
multiple-LED array package for projection display
application. The performance of rectangular CPC was
studied and compared to theoretical simulations. More
than 85% light, emitted by multiple-LED arrays, can be
collected by the CPC and transmitted within the designed
angle. A rectangular CPC was fabricated as the collector
and collimator. The CPC was integrated with multiple-LED
array package, and RGB high brightness LED modules with
rectangular CPCs were fabricated and their performances
were characterized.
© 2011 IEEE
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