Setting GAIN too high on your projector

Discussion in 'Projectors, Screens & Video Processors' started by jrwood, Aug 1, 2002.

  1. jrwood

    jrwood
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    Anyone know if setting the gain too high on a projector can damage the panels?.

    Thanks
     
  2. LV426

    LV426
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    No, not on a LCD or DLP. The only effect this will have is on the projected image and is temporary ie will recover if you adjust it back again. Basically, a colour which is less than 100 bright will look the same as one which is 100% bright. ie you loose detail in bright areas. If all 3 panels are calibrated like this, a very pale grey will be indistinguishable from white. However, if you reduce the contrast setting, this has the effect of uniformly reducing gain on all 3 panels and will therefore correct the problem.
     
  3. GearHead

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    I think I'm right in thinking that LCD panels are only 'stressed' when asked to block light. So if anything, increasing the gain puts a lighter load on the panels.

    Allan
     
  4. Gordon @ Convergent AV

    Gordon @ Convergent AV
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    Depends on the device...

    With CRT or Plasma (yes I know it's not a projector) you can trash them.
    With DLP I am led to believe that with some models solarisation may occur. This won't damage anything just look crap.
    May get same effect with some LCD's but I've not tried it yet...

    Gordon
     
  5. tahustvedt

    tahustvedt
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    GearHead is correct. increasing the voltage to a pixel of a LCD-panels blocks more light.


    Tor Arne
     

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