Originally Posted by gtgray
What you are describing ain't rainbowing. I don't doubt you are seeing some kind of artifacting but rainbowing is not at all like what you are describing.
I know exactly what RBE is and have known about it for years from vomit-worthy experiences with older color wheel based sets. Random vertical red green and blue lines separating images and splotching up my viewing experience most definitely qualifies as RBE. I was under the false impression that the newer LED and laser based DLPs would totally eliminate the flaw for me, but they do not.
I am not sensitive to the rainbow effect but almost anyone can force themself to see them. If you use the THX test setup utility on early Pixar movies like Toy story and go the the aspect ratio test screens, these are white circles and ovals on black bagrounds. Move your head left to right rapidly while looking at the screen and you will see what is called RBE or Rainbow Effect. Once you see it you understand.
Yes, the THX screen tests are torture. The white circle breaks completely apart into RGB segments across the entire screen with the slightest eye movements. You are lucky that you are not sensitive and have to force unnatural head and eye movements to bring it out, I'm simply just trying to enjoy a casual viewing experience without success.
For me it's almost always there in motion pictures. Not so much in cartoons or video games. Almost not at all while using the TV as a PC monitor (as I'm typing this right now, all is clear).
You aren't getting that without a color wheel. I have never once had anyone sit in front of any of the 4 soon to be 5 DLPs I own and heard a word about rainbows. The vast majority of people don't see them in normal content. I have only ever seen them in these peculiar scenaris of large white circles on a pure black, background and even then I had to shake my head back and forth in a very unnatural way.
Again, you're lucky, and so are the vast majority of people from what I've been told.
I am not actively looking for the problem, just trying to watch movies as I normally would. The color defects are literally right in my face without warning and it is very frustrating.
Something very odd I have noticed though, is that when I am drowsy the problem occurs much less often. It's almost as if the more I zone out, and focus less on the picture, things tend to look more normal. Maybe I should down a couple beers right before watching?
I don't know, perhaps the optical region of my brain is abnormally acute to be dependably convinced by DLP visual trickery.
I'm just not always being fooled by the continuous overlapping of the component colors. I can normally see the 60Hz flicker of incandescent light bulbs and see between the interlaced scan lines on CRTS. So I suppose I'm just a freak.
Maybe there is a way to crank up the LED pulsing rate somewhere within the service menu? I highly doubt it though.