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Old 12-13-2006, 11:15 PM   #1  
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Hey, since you need to do 1920x1080 @ 30hz for 1080i, does this mean that if you have a 1080p display you can do 1920x1080 @ 60 hz?
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Old 12-13-2006, 11:21 PM   #2  
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Have you checked your TV's manual? The specifications should list that information.

However, right now there is no such thing as 1080p/60fps. Only 24, 25, and 30 fps are used with 1080p. 50 and 60 fps will probably become the norm for broadcasts, but that means better a better codec that can support a higher compression.
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Old 12-14-2006, 04:36 PM   #3  
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Quote:
Originally Posted by Decado
Hey, since you need to do 1920x1080 @ 30hz for 1080i, does this mean that if you have a 1080p display you can do 1920x1080 @ 60 hz?
Bear in mind there is a difference between the signal input and the way the pixels are displayed. A 1080p display only refers to the pixel matrix being 1920x1080 and to my knowledge all 1080p displays will refresh the pixels 60 times per second.

Now as to the 1080i part, that is referencing the signal and simply means all of the odd lines are sent followed by the even lines. The set puts them back together for display. Only CRT sets will actually display the interlaced video in an interlaced fashon.

Some 1080p sets will accept a 1080p/60 signal and some won't. All 1080p sets will accept 480i, 480p, 720p and 1080i signals at a minimum.

The 1080p/60 is only available from computers or gameboxes. Even using a PS3 or XBox DVD player will not matter whether the display acceps 1080p/60 or 1080i/30 for playing movies since moves are shot at 24 frames per second. It is more important that the display does a good 3:2 reverse pulldown and has a good de-interlacer.
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Old 12-14-2006, 05:17 PM   #4  
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Quote:
Originally Posted by rbinck
Bear in mind there is a difference between the signal input and the way the pixels are displayed. A 1080p display only refers to the pixel matrix being 1920x1080 and to my knowledge all 1080p displays will refresh the pixels 60 times per second.

Now as to the 1080i part, that is referencing the signal and simply means all of the odd lines are sent followed by the even lines. The set puts them back together for display. Only CRT sets will actually display the interlaced video in an interlaced fashon.

Some 1080p sets will accept a 1080p/60 signal and some won't. All 1080p sets will accept 480i, 480p, 720p and 1080i signals at a minimum.

The 1080p/60 is only available from computers or gameboxes. Even using a PS3 or XBox DVD player will not matter whether the display acceps 1080p/60 or 1080i/30 for playing movies since moves are shot at 24 frames per second. It is more important that the display does a good 3:2 reverse pulldown and has a good de-interlacer.
When playing games on a PS3, is the PS3 sending 1080p60 or 1080psomething else?

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Old 12-14-2006, 05:24 PM   #5  
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If configured to output 1080/60 the PS3 will send 1080/60 to the TV.

Last edited by rbinck; 12-14-2006 at 05:48 PM..
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