1080p vs 1080i

[RussSchultz]

How long before HD tv's are affordable?
i.e when can I get a good 35 incher in the us for under a grand?

I believe today.

THere are some 50"+ CRT projection ones available for $1500 or so.

 

[Moloch]

Me needs to get a job at good guys, my sister in law's fiance works there, I could get a discount anyway, but I chose to be a slacker and not have a job while im taking 12 units

 

[zurich]

After having my LCD (720p) for a good 5-6 months, and my buddy who has a 50 inch Samsung DLP (720p), I can't go back to interlaced output. It would be like going back to dial-up!

 

[3dcgi]

p is better than i any given day.

Not quite true. Interlace is better for sports (more temporal sampling), progressive is better for stills (single sampling point)

I disagree. Progressive is better for sports. Fast motion results in tearing when viewed interlaced. If 1080p is indeed only 30Hz then it's difficult to say how it would compare to a 60Hz 1080i signal, but stations are picking 720p for sports because a lower resolution progressive signal is better than a high resolution interlaced signal when viewing fast motion.

 

[Ty]

Yea, I've always though Progressive (720P for example) was better for motion and 1080i for sharper but more static screens.

 

[RussSchultz]

The question was 1080i/30 vs. 1080p/30.

Not 720p/60 vs. 1080i/30

 

[London Geezer]

The question was 1080i/30 vs. 1080p/30.

Not 720p/60 vs. 1080i/30

Well then i still don't understand. That 1080i/30 should read 1080i/60, right? Otherwise 1080p should still be better than 1080i, since the sampling is the same but the resolution double.
I guess you mean 1080i/30 like today's 480i/30, which actually runs at 60Hz. That would make sense.

 

[RussSchultz]

1080i/30 runs at 30 frames per second, with each frame composed of 2 fields that are sampled at 60Hz. (So there's temporal sampling at 60Hz at half the resolution)

 

[London Geezer]

1080i/30 runs at 30 frames per second, with each frame composed of 2 fields that are sampled at 60Hz. (So there's temporal sampling at 60Hz at half the resolution)

So it's 1080i/60, like today's 480i/60. Cool, now i understand.

 

[Ty]

The question was 1080i/30 vs. 1080p/30.

Not 720p/60 vs. 1080i/30

I didn't know there were displays (TVs) that ran that way.