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Hi everyone,


We have the three NEC NP-PA500X's installed side by side in an art history classroom. They all have NEC NP11FL short throw lenses, and are projecting onto a hard plastic rear projection screen. Along the edge of one of the projected images (and happening slightly on another image) we see the image starts to get a slight brown/yellow tint as you look to the edge of the image. Noticeable enough for the art history professors to see it when they're showing artwork. I'm curious if this is some sort of a byproduct of the short throw lens or the rear projection screen? Thanks.


Mike
 

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How old are the projectors and how many hours are on them? This sounds like the LCDs are starting to deteriorate due to age. As the LCDs age they begin the yellow and get worse over time starting at the edges. I'm starting to see this on my Dell 3007wfp monitor after many years of operation.
 
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