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LCD s in daylight

Discussion in 'LCD & LED LCD TVs' started by Leerock, May 6, 2005.

  1. Leerock

    Leerock
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    H guys
    I think this is the first time i post in lcd forum coz I m a plasma owner.
    Although I m planning to sell my Pio plasma to go for an LCD.
    Not because of PQ coz plasmas are far ahead regarding PQ
    but because Lcds look so much better in daylight.
    I watch a lot of tv in daylight and the plasma is just too fuzzy.

    My question is
    What makes lcds look so much better in daylight?
    Their contrast ratio?
    Brightness ratio?
    Or the material they have in front of the screen instead of glass?

    Thanks in advance.
     
  2. MokerJoker

    MokerJoker
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    I had a look at some Loewe LCDs today. One of them had an extra glass plate in front and the reflection was just as bad as regular CRT TVs and plasmas. It certainly is the material. Plasmas all have a glass plate in front, whereas LCDs have some sort of plastic polarisation filter. This almost entirely eliminates reflection, but makes the screen more vulnerable.
     
  3. LcdGuru

    LcdGuru
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    > What makes lcds look so much better in daylight?

    LCDs have a very low reflectivity since the front glass contains the following components:

    A) The RGB colour filters - these absorb 2/3 of incident ambient light.
    B) Polariser - absorbs 50% of incident light
    C) Black matrix around the pixels to further reduce reflections.

    The RGB filters and polariser are actually used to generate the picture - but they also just happen to make the LCD absorb alot of ambient light.

    By comparison a Plasma has more exposed phosphor on the front plate. This is quite reflective causing the screen to look grey in sunlight.

    Note: the low reflectivity of LCDs is offset somewhat by significant backlight leakage on black - but this only becomes objectionable when viewing in a darkened room. Most people view in a well lit room.
     
  4. richiecas

    richiecas
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    What pio screen do you have.
    Don't the 435 range have a plastic screen and claim to reduce reflection sifnificantly? Is this true?
    How do you find the pio for TV. Do you watch sky or analogue feed?
     

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