Comparison of the light output of LCOS projection architectures using LEDs

Lawrence Bogaert, Youri Meuret, Bart Van Giel, Hüseyin Murat, Herbert De Smet, Hugo Thienpont

Abstract: We investigate the optimal driving conditions of high power light emitting diodes (LED) in a four liquid crystal on silicon (LCOS) micro display projection architecture, taking lifetime issues of the LEDs into account. This architecture is an extension of a two LCOS panel approach. The possible light output is compared with other LCOS architectures as a function of relevant LCOS specifications.