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In Reply to: Re: Saw some plasmas at Best Buy a few weeks ago... posted by Kal Rubinson on December 29, 2004 at 08:05:13:
the following article is very interesting reading (see link)-I found this part of the article most useful-
"With flat-panel monitors, we can force light from a cold-cathode light source (such as a fluorescent lamp) through a light shutter (AM LCDs) made up of pixels coated with tiny precision filters and get our color images that way. Or, we can discharge electricity through pixels filled with a rare gas mixture (plasma) and watch as color phosphors are stimulated to produce RGB color imaging.
In the old days, color imaging was accomplished by tickling phosphors with an electron gun. Surprisingly, this system produced (and continues to produce) the most lifelike images of all, which is why a small number of high-end customers still prefer CRT front projectors for home-theater applications.
That's because CRTs are capable of a wide grayscale and can show images with very low luminance levels (shadow detail) as well as very high luminance levels (highlights) in the same scene. More importantly, when a CRT is idling, it is essentially shut off. I mean really shut off, as in black and not a deep gray, as you'll see with LCD, DLP, and LCoS projectors, and AM LCD and plasma monitors.
While there have been tremendous advances in color imaging with flat-panel displays, one stumbling block still remains. And that's the ability (or inability) to show a grayscale with the widest possible dynamic range."
Note that I never said that plasmas have a terrible picture or anything like that, only that they have a reduced grayscale compared with CRT (I incorrectly called it "contrast", as the article points out). That means that you can't see the blackest blacks or the whitest whites on a plasma, which is why I prefer CRT for critical viewing.
BTW, when discrete three-chip DLPs are avaiable at a reasonable price in home units, you can bet that I'll be the first kid on my block to get one.
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Follow Ups
- For Joe and anybody else who disputes that plasmas have a reduced grayscale... - C.B. 10:45:53 12/29/04 (2)
- One additional comment... - C.B. 11:22:17 12/29/04 (1)
- Two additional comments. - Kal Rubinson 13:25:22 12/29/04 (0)
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