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Discussion Starter · #1 ·
1.) Does a plasma screen television need an ISF calibration?

2.) What type of color analyer measures color temp on a plasma?

3.) What devices should a consumer be aware of...that a tech have for HDTV and plasma calibration?

4.) Is there such a thing as 1500:1 contrast ratio as the new Runco Plasma boasts?


How about the same questions for HDTV -DLP or D-ILA rear projection units?


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Greetings


1.) In general, even a plasma needs basic grayscale calibration in addition to setting the user parameters. They can be off the mark just like any other display type or be where ever the manufacturer chooses it to be.


2.) Most analyzers will take measurements off the Plasma units. Now will the readings be correct? That is another question. There was a recent comparison of analyzer devices and how they compared to this ($15K) Spectrometer which was considered to be the most accurate. In general the conventional units like the Sencores (which were tested) measured about 500 to 800K higher.


Currently, units like the VA-1/CA-1 will work with plasma units, but require a special "offset" file to tell the program how to account for the differences that it sees.


An optical comparator is also a good choice here as your eye cannot be fooled as easily as the instruments can on such display devices.


3.) For Plasma, the tech should have either an optical comparator, that (15K) device, the CA-1. Or another unit that has learned what a proper white looks like on a plasma unit.


For the HD section, a signal generator like the Sencore or the Accupel unit should be good enough.


4.) No comment



How about the same questions for HDTV -DLP or D-ILA rear projection units?


Same as the plasmas for the most part. Some DLP units do not even have any controls for doing grayscale so you might be hooped.


Regards



------------------

Michael @ The Laser Video Experience
 
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