rainbow in my DLP not seen before

Discussion in 'Displays' started by Gavin_mi, Aug 11, 2005.

  1. Gavin_mi

    Gavin_mi Stunt Coordinator

    Joined:
    Jul 3, 2005
    Messages:
    65
    Likes Received:
    0
    I have had my TV for about 3 months now and I NEVER saw a rainbow in it ever until tuesday of this week. I am seeing them much more frequently now. could this be a problem with the TV? is the color wheel getting dust on it? I noticed that it has a fan in the back and I live in a house with 2 dogs and there is ALOT of dust in there....I need one of those 300 dollar air filters. should I call a repairman? I know that those RBE wasnt there when I first got the TV and all of the sudden they appear. I notice them most when there is something white in the middle of dark stuff and I look away from the TV to do something. any info would be great.

    on a side note what is the actual life expectance on the bulb in there? and the price to replace? its a mits WD-62327

    Gavin
     
  2. John S

    John S Producer

    Joined:
    Nov 4, 2003
    Messages:
    5,460
    Likes Received:
    0
    Rainbows are an odd thing...

    I'm not sure anything is wrong or changed. Many many people find they don't see them at first, but once they see them, they see them all the time.

    A tech should be able to clean it all out real good. I'd have him sort of train you on how to do it, sounds like you may be doing it every 3 months or so.

    Best of luck with it all.
     
  3. aaron campbell

    aaron campbell Second Unit

    Joined:
    Jan 11, 2000
    Messages:
    282
    Likes Received:
    0
    Gavin, I never saw them until about the 1 month mark. I only see them when I look down away from the screen. No big deal to me. IMO, those that claim they get headaches from them are getting eye fatigue from the brightness & high contrast of the dlp's.
     
  4. Gavin_mi

    Gavin_mi Stunt Coordinator

    Joined:
    Jul 3, 2005
    Messages:
    65
    Likes Received:
    0
    how do the $30,000 projectors with 3 DLP color wheels/processors not get any RBE? is it all spinning faster? I think my TV has gotten broke in an the wheel slowed down a little and now I can see it. seriously when I first got this and everyone was talking about RBE I spent HOURS trying to see one RBE, doing everything imaginable to catch a glimps, then one day there they are plain as day.

    any insight on the lifespan/cost on the bulbs?

    gavin
     
  5. John S

    John S Producer

    Joined:
    Nov 4, 2003
    Messages:
    5,460
    Likes Received:
    0
    Your experience is not that uncommon is all I am saying.

    I don't really do DLP, so I am weak on lifespan and bulb life questions.
     
  6. Gavin_mi

    Gavin_mi Stunt Coordinator

    Joined:
    Jul 3, 2005
    Messages:
    65
    Likes Received:
    0
    thanks for your info, I didnt mean to sound snippy, sorry for that if I did.

    Gavin
     
  7. Ted Lee

    Ted Lee Lead Actor

    Joined:
    May 8, 2001
    Messages:
    8,399
    Likes Received:
    0
    lifespan on the bulbs is about 3-5 years ... ballpark. cost is about 300 bucks to replace.

    i don't know if rainbows is something you start seeing after a while. i always thought you either saw it right away ... or not at all. me, i don't see them, nor do i want to try.

    also, what brand is this tv? the latest model samsungs have a seven-segment color wheel ... that should help reduce/eliminate rainbowing.
     
  8. Gavin_mi

    Gavin_mi Stunt Coordinator

    Joined:
    Jul 3, 2005
    Messages:
    65
    Likes Received:
    0
    its a mitsubishi WD-62327, it also has the new TI DLP chip like the sammys.

    thanks for the bulb info.
     
  9. James Phung

    James Phung Second Unit

    Joined:
    Jun 4, 2004
    Messages:
    409
    Likes Received:
    0


    Those $30k projectors are 3 chip DLPs that have no color wheels, meaning no rainbows. Most consumer DLPs are one chip DLP that need a color wheel.
     
  10. frankinG

    frankinG Stunt Coordinator

    Joined:
    May 11, 2005
    Messages:
    67
    Likes Received:
    0
    Gavin. There is nothing wrong with your television. I have had dlp products in the past and only started noticing rainbows after about 3 months. If it does not really bother you then I really would not put too much emphasis on it.

    Once you start seeing them then it is more than likely that you will continue to see them regularly. [​IMG]
     
  11. Gavin_mi

    Gavin_mi Stunt Coordinator

    Joined:
    Jul 3, 2005
    Messages:
    65
    Likes Received:
    0
    thanks for the info, I guess I can sleep tonight knowing im not going to have to have the repair guy in and cost me 500 bucks that could be going towards my speakers in the future.

    Gavin
     
  12. frankinG

    frankinG Stunt Coordinator

    Joined:
    May 11, 2005
    Messages:
    67
    Likes Received:
    0
    Gavin, you are right on the ball about the light images on dark backgrounds as most problematic for noticing rainbows. Movie credits will also be a good way to see them if you are developing rbe sensitivity. Statistics show that less than 10% of dlp user notice rainbows or are bothered by them.
     

Share This Page