Build your own LCD projectior

Discussion in 'Archived Threads 2001-2004' started by NathanP, Aug 26, 2001.

  1. NathanP

    NathanP Supporting Actor

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    Have any of you guys or gals tried the thing where you buy a 2" lcd display and put it in a slide projector?
    Does anyone suggest doing it?
    How do I do this?
    Any tips?
    Thanks!
    Nathan
     
  2. NateF

    NateF Stunt Coordinator

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    Umm.. I think that's pretty much beyond the realm of something you can build yourself. I mean, you have to translate the video signal coming in into telling the LCD what color to make pixel #46748... not an easy job.
    -Nate
     
  3. Neil Joseph

    Neil Joseph Lead Actor

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    Neil Joseph
  4. Allan Jayne

    Allan Jayne Cinematographer

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    Do you mean the 2 inch directly viewed backlit display in one of those coat pocket battery operated TV's?
    1. The resolution of those things is far far less than 480 scan lines by even 240 TVL@4:3, the projected picture would be terribly grainy.
    2. The heat from a slide projector lamp will probably destroy the LCD unit, assuming you can get it outside of the TV unit and into the projector where a slide would go.
    3. I am led to believe that the contrast would be quite poor.
    By the way they make (or used to make) an LCD panel I think about 7 by 10 inches, which you put on an "overhead" projector. I don't remember whether it was computer VGA only or whether it displayed NTSC video.
    Other video hints: http://members.aol.com/ajaynejr/video.htm
    [Edited last by Allan Jayne on August 27, 2001 at 08:25 PM]
    [Edited last by Allan Jayne on August 28, 2001 at 07:20 AM]
     
  5. NathanP

    NathanP Supporting Actor

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    Hmmm...
    I've heard alot about this subject and that there are ways to solve the heat problem...
    Anyone else done anything like this?
    Nathan
     

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