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1080i and 720p [message #28746] Sat, 09 September 2006 00:25 Go to next message
matefork is currently offline  matefork
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I heard about this high definition TVs having two sets of resolution; the 1080i and 720p. What are these two pests mean actually? How do they differentiate from the older versions of television that we used to have?

Re: 1080i and 720p [message #28748 is a reply to message #28746] Sat, 09 September 2006 05:08 Go to previous messageGo to next message
eatli is currently offline  eatli
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Registered: May 2009
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The 1080 and 720 refer to the vertical resolution used - standard TVs I believe are 625.

The i refers to interlaced - the same system that standard PAL uses where on one pass every other line is done, eg lines 1,3,5,7 and then the second pass lines 2,4,6,8...etc are done.

The p is for progressive - where all the lines are done every pass, giving a crisper, clearer picture.

Re: 1080i and 720p [message #28753 is a reply to message #28748] Tue, 12 September 2006 15:19 Go to previous messageGo to next message
Wayne Parham is currently offline  Wayne Parham
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Registered: January 2001
Illuminati (33rd Degree)

Standard TV has 525 scan lines and is interlaced.


Re: 1080i and 720p [message #62131 is a reply to message #28753] Fri, 19 March 2010 21:52 Go to previous messageGo to next message
Lancelot is currently offline  Lancelot
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I also have seen these features on the new TV's. What would you recommend then if I have to choose from 1080i and 1080p? How can check the difference between these 2 options?
Re: 1080i and 720p [message #62133 is a reply to message #62131] Fri, 19 March 2010 22:35 Go to previous message
Wayne Parham is currently offline  Wayne Parham
Messages: 18796
Registered: January 2001
Illuminati (33rd Degree)

1080p is much better. It displays all lines in each frame, where 1080i only displays every other line per frame.

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