View Full Version : What is the rainbow effect on DLP'S?


zero_zep
02-20-07, 11:21 PM
Sorry...I tried the screach function and nothing came up but huge threads and I dont have time to look through all of them only to find a tv that has it but doesnt explain what it is. Thanks...

Hogan
02-20-07, 11:56 PM
try a google search too.

basically it is possible in single chip DLP sets as a color wheel flashes each color sequentially thru the same chip. On scenes with a lot of contrast, sometimes you can see brief flashes of color on the transition area between light and dark, but only if your eyes are panning quickly across. A few people (5% estimated) see them often enough to be bothered. Most can't see them, or if they do see them every once and awhile (that's me) its no big deal.

I would go look at some DLPs in the stores. If you don't see the rainbows then don't worry about it, and don't obsess about trying to see them.

zero_zep
02-21-07, 12:03 AM
well one problem I have it that every DLP screen I look at it seems that the screen is slightly crooked. I took back the first one and got another one and it had the same thing. The tech said it's a problem with the plastic....and then I went back to the store and noticed that every tv with a widescreen image on it was crooked. The guy there said it happens to 80% of them. Is that true or they blowing smoke? Cause I have a few days left that I can take the thing back if they are lieing. But he also said I would have the same problem with a projector so I don't know what to do.

Jswerve
02-21-07, 08:30 AM
I can't see RBE on my DLP but I always see SSE. It is mainly because I look for it though.

zero_zep
02-21-07, 08:41 AM
sorry.....whats sse?

kelpie
02-21-07, 09:54 AM
This link (http://www.dietforum.net/balagee/projected/rainbow.html) has a simulation of what the rainbow effect (RBE) looks like to some people.

Wikipedia has a discussion of RBE here (http://en.wikipedia.org/wiki/Rainbow_effect#The_DLP_.22Rainbow_Effect.22).

SSE is an abbreviation for the "Silk Screen Effect". Wikipedia has a discussion of SSE here (http://en.wikipedia.org/wiki/Silk_screen_effect).

HTH,

kelpie

Edited to fix Wikipedi SSE link.