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Is there really a difference between projectors that utilize LCoS technology and projectors that use DLP technology to project images? Are LCoS projectors still large and pricey like many older reviews mentioned? In this article we will talk about the technology driving both DLP and LCoS projectors. I will also discuss some of the advantages and disadvantages they present. LCoS stands for "liquid crystal on silicon" and is a mix 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: the reduction in pixelation because the LCoS has more rounded pixels compared to the sharp edges of the DLP pixels, a reduction in bluring effects, and higher resolutions. I still remember working at Best Buy when the Sony SXRD was our top model. Our main selling point to customers was the LCoS chip that it used. The SXRD LCoS technology gave it the least blurring effects of any television in the store. It was our most prized television and was especially attractive to sports fans and video gamers. Frequently I would walk customers through side by side comparisons and nine out of ten times the customer could see the drastic reduction in blur from fast moving videos on the SXRD compared to other models. Because of the increased performance there was also a price tag of about 1.5 to 2 times the price of similar sized projection televisions. Fortunately this is less of an issue today with projectors using LCoS. When researching LCoS versus the DLP I came across three major objections to the LCoS projectors: they were more costly, more bulky, and their lamps did not last as long as the DLP projectors. Let's go through these one by one to see if they are still valid. 1) "They are more costly." LCoS chips are now mass produced by several companies and projectors using them can be found for as little as $250, maybe even less. 2) "They are more bulky." LCoS can be found in mini projectors that are the size of today's smart phones. 3) "Their lamps do not last as long." This refers to the amount of time you can watch the projector before you need to buy a new bulb. LCoS projector lamps used to last about 1,000 to 2,000 hours. Now you can find them with LED lights that last 30,000 hours. This would be equal to watching the projector every hour of every day for almost 3 and a half years. Some other small objections are worth talking about but are not nearly as critical to most people. LCoS projectors do tend to take more electricity leads to the projector becoming slightly warmer and needing a more powerful fan. These fans make the projector run louder. The extra power also means that if you are using a battery operated projector you should probably get a long lasting battery or keep your power cord available. If you are not too concerned about these affects the LCoS picture quality is great.
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To hear more about portable projector technology visit us on the web at www.aaxatech.com. As of the publishing date of this article Matthew Green is in no way affiliated with Aaxa Technologies and does not represent them in any way.
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