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monitor pixels playback

post #1 of 2
Thread Starter 
Hi,
i have a question: lets say we have a 2560 by 1440 normal screen. I perfectly understand how it can show a 1440p video (obviously by using all the pixels differently) and also how it is able to play a 720p video (by using half of the resolution) but my question is:
how can a 1440p screen play a 1080p video in terms of pixels?
post #2 of 2
Think of it this way: how does a 720p video scale to 1080p?

Since every 3 pixels of information are now stretched to 4, the video player must upscale our content. Very complex algorithims, like those in madvr, will work out from the image what it "should" look like if it was 4 pixels long all along.

This does not create any more detail in the video, it just stretches every 3 pixels into 4 in a way that does not look "bad".

Because 720p fits perfectly into 1440p, 720p content should look better than 1080p on a 1440p screen. If you are archiving stuff though archive 1080p as it has more details that the higher-res panels like 4K will be able to display perfectly.
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