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One of the latest and in my opinion best HDTV technology is DLP Projection. Similar to LCD projection technology, the image is displayed on a chip and then projected onto the screen. However; unlike their LCD counterparts, the DLP chip uses tiny mirrors for every pixel. This device is called a DMD or Digital Micro-mirror Device. The video image is displayed on this chip and the micro-mirrors will tilt or move rapidly as frames of the video change. These fast moving tiny mirrors produce what is called the grayscale part of the image. A high-speed color wheel is then reflected off these mirrors through a high powered light source and lens to create the full color image on the screen. This whole process generates, in my opinion the best image of all current HDTVs other than direct view LCD or Plasma sets.
The main advantage of DLP technology over LCD projection is much better color accuracy with "no screen door effect" due to its micro-mirror technology that produces a higher contrast. However; LCDs due tend to be brighter but you will notice the image will look more "smooth", similar to the effect of a CRT but at a much higher resolution and detail. This is why in my opinion, DLP is the clear winner when it comes displaying the best quality projected HDTV picture.
However, DLP does have a disadvantage over LCD or CRT projection technology. A DLP Rear Projection television set can show an effect called "the rainbow effect". Which basically means that if you move your head or eyes rapidly while viewing a video image, you may notice a rainbow like effect around the edge of the screen. However; this does not occur often, and depends on the person viewing the image. Some people will not notice this effect at all but others may see it on every DLP set they view.
Like LCD, DLP is a pure digital pixel based device and are mean't to be displayed at their native resolution, which is usually at least 1280x720 pixels. Which means it will not display a perfect image when viewing lower resolutions broadcasts such as normal analog television. However, if your video source is an EDTV DVD player or a pure HDTV Tuner, then you will be amazed by the quality of the image.
Although, not as expensive as LCD flat panels or plasma HDTVs, DLP Rear Projection HDTVs due tend to be more costly compared to other rear projection televisions. They are as thin and lighter as LCD Rear Projection sets but do cost about 10-25% more. But, if you can afford this extra cost and want the best video image at large screen sizes, this is the HDTV for you.
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What to look for when purchasing a DLP Projection HDTV
When shopping for a DLP based HDTV, there are few features or specs you will want to look for. These are as follows:
More DLP Rear Projection HDTV Resources
Amazon.com - Offers one of the largest selections of DLP HDTV's at the lowest prices. You will also find Home Theater Audio Systems, DVD and VCR Players and Recorders, DVD Movies and everything else you could ever need for your HDTV experience.
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