PROCEEDINGS ARTICLE | February 23, 2006
Proc. SPIE. 6135, Liquid Crystal Materials, Devices, and Applications XI
KEYWORDS: Speckle, Laser applications, Lamps, Semiconductor lasers, Liquid crystal on silicon, Televisions, Projection systems, Laser video displays, Semiconducting wafers, RGB color model
Laser-based projection displays have long attracted interest because of the multiple advantages (expanded color gamut, high resolution, longer lifetime, etc.) expected from lasers as compared to lamps. However, most of these advantages have been largely negated by the significant cost, size, and cooling requirements associated with lasers, and their inability to produce red, green, and blue colors in the same platform. In this paper, we review a new, laser array
technology based of frequency-doubled, semiconductor, surface-emitting lasers. The key features of this technology, such as demonstrated multi-Watt output for rear-projection TVs, power levels scalable with the number of emitters, speckle suppression due to multi-emitter array, and a low-cost and compact design are discussed in detail.
