MINIATURIZED PROJECTION DISPLAY

摘要

A projection device is disclosed. The projection device comprises a plurality of LEDs (202, 204, 206) each generating light of a known wavelength, a light path associated with, and receiving the light from, each of the LEDs, each light path comprising a VA wavelength retarder (213, 223, 233), a first optical selection means (243, 253, 263)) providing orientation of a known direction to light applied thereon, the first optical selection means further reflecting light having an orientation not in the known direction, an LCD panel (232, 234, 236, and a second optical selection means (245, 255, 265) providing orientation of light applied thereon substantially orthogonal to the first known direction, and a recombination cube (240) in communication with each of the light paths for recombining the light received from each of the light paths, wherein the orientation of light received from at least one light path is substantially orthogonal to the orientation of light received from the remaining light paths.