Title :
Micropatterned complex optical surface for wide angle illumination
Author :
Chae, Sun-ki ; Jung, Hyukjin ; Jeong, Ki-Hun
Author_Institution :
Dept. of Bio & Brain Eng., KAIST, Daejeon
Abstract :
A direct-type LED based back-light-unit (BLU) in LCD displays requires wide angle illumination with high uniformity. As a single lens surface, a micropatterned complex optical surface can provide wide angle LED illumination angle over 150deg by designing the micropattern arrays on the hemispherical surface.
Keywords :
LED displays; lenses; lighting; liquid crystal displays; micro-optics; LCD displays; LED based back-light-unit; micropatterned complex optical surface; micropatterning; single lens surface; wide angle illumination; Biomedical optical imaging; Lenses; Light emitting diodes; Lighting; Optical arrays; Optical devices; Optical interferometry; Optical refraction; Optical scattering; Optical surface waves;
Conference_Titel :
Optical MEMs and Nanophotonics, 2008 IEEE/LEOS Internationall Conference on
Conference_Location :
Freiburg
Print_ISBN :
978-1-4244-1917-3
Electronic_ISBN :
978-1-4244-1918-0
DOI :
10.1109/OMEMS.2008.4607816
