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Deciding on a DLP 3:
One issue that some folks have with DLP projectors is something called the
rainbow effect. During a highly contrasted scene (such as white on a black
background), some folks can see a shimmery colored image (like a rainbow,
naturally!) in their peripheral vision. Not everyone can see this, but some
small percentage of the population sees it and is annoyed (to the point of
headaches or even dizziness!). You can minimize the rainbow effect by choosing
a three-chip DLP set with individual DLP chips for red, green, and blue —
many folks believe that the color wheel in single-chip projectors causes the
effect.
The newest trend in DLP is to use a single chip, but to replace the color wheel
and single light source with three LED light sources (red, blue, and green). This
helps get rid of the rainbow effect and has the additional benefit of improving
the color reproduction of the DLP projector. LEDs are really cool things — we
think you’ll start seeing them more and more in home theater displays (as well
as in everyday objects like flashlights, car headlights, and other lighting systems).
They have the advantage, when compared with incandescent lighting, of
truer colors, lower energy consumption, and greatly increased life spans.
We love the future of DLP projectors (both front and rear). They have great pictures,
are relatively inexpensive, and are a snap to set up. As the technology
matures, we think this may end up being the predominant projection system of
the future — already over 75 manufacturers use the technology in their projector
systems. Given the nature of the microprocessor business, we think that
DLP chips will get much cheaper and much more capable faster than you can
bat an eye. You can already buy a good-quality HDTV-ready front-projection
DLP system for under $3,000. And DLP RPTVs typically offer the best “bang for
the buck,” providing the best mixture of price and picture quality — better picture
quality than most LCD RPTVs for the same price, and almost as good as
the LCoS displays we discuss in the next section, for less.
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