How do you know if it is Direct view or RP

Discussion in 'Archived Threads 2001-2004' started by Steve_Tk, May 6, 2002.

  1. Steve_Tk

    Steve_Tk Cinematographer

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    I've looked at a lot of specs of TV's, and can not find a way to tell. Maybe i'm just not looking at the correct thign....
     
  2. Dwight Amato

    Dwight Amato Stunt Coordinator

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    Well, are you looking online or at a store? Physically they look very different.

    The easiest way to tell is size. The biggest tube sold in the US is Sony's 40". That TV and anything smaller is a direct view. Anything larger (43" and up) is an RPTV.
     
  3. RyanDinan

    RyanDinan Stunt Coordinator

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    A rear-projection TV uses three separate, small (7"-9"), monochrome CRT's (red, green, and blue). Their light gets magnified by lenses and is then reflected off a large mirror, housed inside a cabinent. The light then strikes a set of thin screens where the image is focused. Rear-projection is used to achieve large screen sizes, typiclaly above 40"....

    Direct-view TV's are just that - You look directly at a large, single CRT, which is coated with individual dots of red, green, and blue phosphors. Direct-view CRT's are limited in size (40" is the largest), due to the extreme weight, since nothing is magnified from smaller tubes, as is the case with rear-projection TV's. Direct-view TV's typically have thick glass in front of the CRT. Your computer monitor is an example of a direct-view CRT.

    -Ryan Dinan
     
  4. Eric_Lakes

    Eric_Lakes Agent

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    If the screen is Glass, it's a Direct-View

    If the screen is Plastic, it's a Rear-View
     

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