MOBILE PROJECTORS: THE REVIEW OF NON-LASER AND LASER TECHNOLOGIES

Thitirat Siriborvornratanakul

Abstract


Considering recent end-user markets, there are many commercial projectors, whose sizes and prices are barely larger or more expensive than smart phones, available from various manufacturers. Whereas the very first generation of pocket projectors is based on traditional LED light sources, many researchers as well as electrical companies tend to increasingly put their attention to laser light sources whose characteristics theoretically encourage the ideas of mobile projection and projector mobile phones. Nevertheless, in practice, both laser and non-laser engines own some advantages and disadvantages. To date, it is still not clear which engines (or both of them) will become dominant for future mobile projectors.
In this article, we introduce main projection technologies that have been widely used for mobile projectors available in end-user markets. This includes three non-laser based and three laser based technologies. Our review involves brief details regarding their internal mechanisms, advantages, disadvantages, and comparison. Discussion about their present and future are also written at the end of this article.

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References


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