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Picoprojector Technologies: Seeing the Big Picture
Picoprojectors seem to offer the impossible: They are as small as a mobile phone with a screen at least as big as a laptop. This article compares four commercial devices.
Aaxa P2
Technology: CF LCoS |
Aaxa L1
Technology: CS LCoS |
Optoma PK201
Technology: DLP |
Microvision show WX+
Technology: LBS |
Predicted to be the next big gadget, picoprojectors may soon be embedded in a wide range of products, including mobile phones, laptops and cameras. There is currently a three-horse race of competing technologies: liquid crystal on silicon (LCoS), digital light processing (DLP) and laser beam scanning (LBS). We studied four commercial picoprojectors to quantify their differences: an Aaxa P2 color-filter LCoS, Aaxa L1 color sequential LCoS, Optoma PK201 (DLP) and a Microvison Show WX+ (LBS). (The two Aaxa models have since been discontinued, but they are still representative of existing LCoS technology.)
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