720p on a 1080p display!
rcandiloro -- Wed, 01/23/2008 - 13:35
Just a tech question more than anything else. I have a Sony KDS 50A3000. With the PS3 some games are developed at 1080p and some are developed at 720p. The PS3 recognizes that the TV will support 480p all the way up through 1080p, but the games that are developed at 720p only display in 720p (based upon hitting the display button on the remote). The games that are developed at 1080p show up as 1080p. Here is my question. The display is 1920x1080 pixels. Even though the game is running in 720p, the TV scales that image to those pixels, so isn't the game running in 1080p even though it says 720p? It's a progressive scan image, so what is the difference, other than texture detail because a game was developed with 720p in mind, between that 720p image and a 1080p image? In my mind it's displaying a 1920x1080 image in a progressive scan format, so therefore it's 1080p. Am I off in my logic?
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it is true that ANY input will be scaled to the native resolution of the display. So a 1080 signal will be scaled DOWN to 720p on a 720display, and vice versa.
The real question is whether upconverting actually helps the picture look better. That would be up to your particular TV. Whether your Sony actually upconverts the signal, interpolating the extra pixles to improve quality, or whether it simply scales the image up (zooms in so to speak) is a question for Sony.
The good news is that 720p still looks great. I imagine your TV does upconvert to some degree, but it absolutely will not match the quality of a native 1080p source.