When 3 CRTs are side by side, why does the color seem to be off in red, blue, and green (individually)?
August 14, 2006 9:43 AM Subscribe
When 3 CRTs are placed next to each other and are showing exactly the same image, why does it often seem that one is redder, one is greener, and one is bluer? This is something we've seen where I work on multiple hardware configurations and in random order, but always one of each in a three-channel configuration.
posted by maldrin to technology (9 answers total)
It seems to be true whether all three CRTs are hooked to one PC, or if all three are hooked to separate PCs. I’m not well versed in color calibration or video signals, and I found tons of great information about calibrating here, but no one seemed to describe this particular issue. I was curious if anyone has seen this and has an explanation for what causes it and how to predict or deal with it. In part I wonder whether it’s simply an optical illusion, or if possibly this is caused by video interference between the monitors when they are in close proximity to each other.