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1080p refers to one or two 1920x1080 high definition digital TV formats (HDTV) that have 1,080 lines of progressive scan resolution (the "p"). Full HD is also commonly known as "true HD" and "ultra HD," the 1080p progressive formats provide the maximum lines of resolution and best image quality in the HDTV standard.
Out, In or Both?
A 1080p HDTV set may provide 1080p output, but not necessarily accept 1080p input. Not all TV content provides 1080 resolution. To fill the higher number of lines on screen most Full HDTV sets can up-convert 480i and 480p signals to 1080p. But, they may not be able to accept 1080p signals from a HD DVD or
Blu-ray Player.
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