A short test video I played on my Acer X1261P. Regular DVD source using composite video cable.
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Saturday, December 17, 2011
Wednesday, December 7, 2011
LCoS Versus DLP Pico Projector
What are the real differences between LCoS and DLP projectors? After much research I have found that very little up-to-date information that is available. Most websites point out how bulky and costly LCoS projectors and my research shows otherwise.
LCoS stands for "liquid crystal on silicon" and is a hybrid between DLP (digital light processing) and LCD (liquid crystal display) technology. Light is projected through the liquid crystals onto a reflective surface that projects images. The major advantages to the LCoS are: a reduction in pixelation because LCoS has more rounded pixels compared to the sharp edges of the DLP pixels, a reduction in bluring effects, and higher resolutions.
The major disadvantages I could find were: high cost, larger in size, and shorter lamp life. But, as with any advancing technology, these are all no longer valid. LCoS projectors can now be found with LED lamps that last 30,000 hours, compared to the 1,000 to 2,000 hours they used to last. They are not very expensive and can be found as low as 0. And there are pico projectors with LCoS that are as small as cell phones.
The only remaining objections are that they do seem to run a little warmer and take extra power. If you are using a battery operated LCoS projector you may want to invest in a long-lasting battery. The extra warmth means the fans they use are also a little louder than other types. Overall, if you can get your hands on an LCoS I would recommend them though they are much less common than DLP projectors as of now because the LCoS chips are harder to mass produce.
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