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At my place of work, we have several different video projectors, but they all use DLP technology, and the colors are wrong: for instance, yellow looks more like green, and all other colors are similarly distorted. Any kind of presentation or collaborative work is hindered by these wrong colors.
On the laptop screen, the colors are fine but on the projector (hooked up via normal short VGA cable, and showing the same image at the same time), the colors look wrong. This is not about one specific projector or one specific laptop; it seems that any combination of projector + laptop has the exact same problem. Every VGA cable appears to be intact, so a cable break could perhaps be ruled out.
Someone said that DLP is poor technology, but that's not true. I'm using a DLP projector at home (regular PC connected via HDMI) and the colors are excellent. Still, there's some kind of curse on the machinery at work.
How can we get decent colors?
Here are a few samples. OK: NEC NP61, HP mp 3135. Bad: NEC NP60. Now the question is, what does this indicate? I've googled reviews for the bad NP60 and they are all excellent (generally 4.5/5 stars and not a word about poor colors.) – Torben Gundtofte-Bruun – 2010-04-15T13:07:59.783
Business-class projectors are usually designed for maximum brightness at the expense of color accuracy, while entertainment-class projectors are more heavily tuned for color accuracy. – rob – 2010-04-19T19:21:49.693
Color accuracy is one thing, but when yellow is green and grey is white, your PowerPoint slides and Excel data look really bad... – Torben Gundtofte-Bruun – 2010-04-21T18:26:57.697