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"Xbox 360 & High definition"

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Thu 03/11/05 at 10:06
Regular
"Less chat...More ha"
Posts: 532
Now I was pretty sure I understood 'High definition' yet after further investigation, I have a few questions that im sure one or more of you can answer!

After a bit of product research the majority of LCD TV's that are 'HD-Ready' have a resolution of 1024x768 which I understand is the number of vertical and horizontal pixel lines respectively?

Now true High def is either 720p, 1080i or top end 1080p, and I sort of understand the difference between interlaced and the superior progressive.
What confuses me is the relation between the 768 vertical resolution and the 720 or 1080! For example, for a TV to be 1080p does it need a higher resolution than 768? And how if that is true how can a 768 TV support 1080i (as most can) I assume it has something to do with the difference between interlaced and progressive?

Your thoughts gentlemen?
Thu 03/11/05 at 18:32
Regular
"Gamertag = Chavex"
Posts: 1,367
VVEEEWOOOOOSHHHH!!! :O
Thu 03/11/05 at 11:33
Regular
"Less chat...More ha"
Posts: 532
Well yes!
Thu 03/11/05 at 11:23
Regular
"Touched!"
Posts: 4,910
In short progressive scan is better.
Thu 03/11/05 at 11:16
Regular
"Less chat...More ha"
Posts: 532
As I understand it, its the difference in how the lines are scanned. Interlaced scans the odd lines and then the even, and progressive scans them all in sequence.

Its just confusing that a set with only 768 physical pixel lines can display a 1080i image (which I assume denotes that there are 1080 vertical pixels requiring that many lines!)

At least im not the only one who isnt completely clear!
Thu 03/11/05 at 10:58
Regular
Posts: 14,117
But what's the difference betwen interlaced and progressive?
Thu 03/11/05 at 10:40
Regular
"Touched!"
Posts: 4,910
Right..as far as the 1080i I *think* it uses upscaling/downscaling to scale the picture on a smaller set so it can run at 1080i. Currently 1080p is the highest form of HD you can get and that would require a £5,000 - £10,000 set for it to work. I think the i = interlaced and p = progressive.
Thu 03/11/05 at 10:06
Regular
"Less chat...More ha"
Posts: 532
Now I was pretty sure I understood 'High definition' yet after further investigation, I have a few questions that im sure one or more of you can answer!

After a bit of product research the majority of LCD TV's that are 'HD-Ready' have a resolution of 1024x768 which I understand is the number of vertical and horizontal pixel lines respectively?

Now true High def is either 720p, 1080i or top end 1080p, and I sort of understand the difference between interlaced and the superior progressive.
What confuses me is the relation between the 768 vertical resolution and the 720 or 1080! For example, for a TV to be 1080p does it need a higher resolution than 768? And how if that is true how can a 768 TV support 1080i (as most can) I assume it has something to do with the difference between interlaced and progressive?

Your thoughts gentlemen?

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