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Why no 72/96hz mode for films?

Discussion in 'LCD & LED LCD TVs' started by Rob20, Oct 25, 2004.

  1. Rob20

    Rob20
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    If films run at 24fps, why don't tv sets have the ability to show films at either 48/72/96 fps. In this way films would run at the correct speed as opposed to 1fps too quick in the UK, and in the USA you wouldn't have the problems created by 3:2 pull down.
     
  2. jgrg

    jgrg
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    Hi Rob,

    I think the answer is mains electricity. In the UK it is 50Hz, in the USA it is 60Hz. The frequency of mains electricity is very tightly regulated by the electricity generators because in AC circuits it has a strong influence on power. It was therefore used as a convenient signal for TV sets to sync to.

    If you are displaying a film on an LCD, you might as well refresh it at 24Hz. It won't flicker like it would on a CRT becasue it doesn't have an electron gun painting it.

    James
     

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