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PTAE100 Screen door + Bulb costs

Discussion in 'Projectors, Screens & Video Processors' started by Jim N, Oct 6, 2002.

  1. Jim N

    Jim N
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    In relation to the Panasonic PTAE100:

    Can someone explain briefly what 'screen door' is and when it is most likely to occur ?

    and,

    Anybody have an idea as to how much a replacement bulb for this projector would cost approx ?

    Cheers.
     
  2. JSW

    JSW
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    Screendoor is the shadow cast from the individual pixels of the LCD screen and shows up in bright scenes.

    Its barely noticable at all from 9ft away and with a tiny defocus of the lens it vanishes.
     
  3. Jonny1973

    Jonny1973
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    Sreendoor is the visible grid lines between pixels.

    Bulbs cost around £235.
     
  4. Kramer

    Kramer
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    :confused:

    Not for me it's not. Very visable from even 15ft. Helped by defocus but not removed unless focus is lost.

    Jim N,

    It's all relative man, as you can see from 2 clearly opposing opinions from owners with the same PJ & same screen.

    Bulb won't be an issue for most until over 3 years use (& that's at 32 hours per week).
     
  5. JSW

    JSW
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    This less confusing for you:

    "the onscreen shadow cast by LCD electrode grids"

    ;)
     
  6. Kramer

    Kramer
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    Nope :clown:

    This was though:

    BTW, my AE-100 is DLP, so :p
     
  7. Jonny1973

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    How is that possible, Kramer??

    The AE-100 is an LCD projctor not DLP.

    On another note, DLP suffer less from screen door due to the narrower grid lines caused by having rectangular pixels.
     
  8. Kramer

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    Sorry Johnny,

    It was a joke for JSW - notice the "stick out tongue/tongue in cheek" emoticon at the end.

    I'm well aware of what screendoor is, having suffered from it since last March (exagerrated for effect :eek:).

    Seriously looking at an upgrade to a HS-10/AE-300 B4 Christmas (company bonus due in the next few weeks).
     
  9. JSW

    JSW
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    Kramer why do you think grid lines are visible ?

    If what I posted confuses you or you dissagree then explain your point rather than make pointless little jokes.

    While your at it you may want to look into LCD/Transmissive electrode technology ;) :D
     
  10. JSW

    JSW
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    The pixels are also much closer together.
     
  11. jackuzi

    jackuzi
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    Kramer, the lucky little monkey said...

    Kramer,

    Can I have first dibs when you out your ae100? ;)

    Jack
     
  12. Kramer

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    Sorry JSW, I don't know :blush:. Because I've good eyesight?

    Have you heard this one? Paddy Englishman, Paddy Irishman & Paddy Scotsman walk into a bar........................................ :D

    Seriously I've never seen the term "shadow" used in the context of "screendoor" (no doubt you'll now post several links to prove me wrong).

    There are no "shadows" on my (totally flat) screen caused by the PJ. The dark grid visible on screen is caused by the "gaps" between light emitting pixels (well they don't actually output light - the bulb does, they act like filters changing the incoming "white" light to red green & blue - 3 LCD panels).

    The bigger the gap between pixels, the more noticeable is the grid on screen (well - for some). Things such as defocusing & fitting filters (Hoya FL-Day) can help to aleviate the effect.

    TBH, it is very subjective. A demo IS advised for anyone who doesn't understand what "screendoor" actually looks like.

    Can't m8, too busy posting pointless jokes for your delictation :D

    Didn't expect this kind of response to my post.

    It was made as I have a very different take on this issue. Given as we are both using the exact same screen & PJ, I thought it would highlight the subjectivity of the original question.

    Nice to see words such as "pointless" & "drivel" used in response to some of my posts though.

    Hope this helps the original poster - which was the intention :kisses:
     
  13. Kramer

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    Will keep you in mind m8.
     
  14. JSW

    JSW
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    No you can find them yourself :p
     

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