CRT's and 720p vids

[Oobie-]

Hey guys,
I wanted to know if a CRT can be technically considered a HDTV and thus does it actually play 720p videos as 720p?

How I understand it is that its fine up to the "p" bit, as this is a render of a frame which is specific for HDTV's, but surely your codec does that, along with your GFX card.



Thanks.

[Funkstar]

you mean a regular CRT TV?

No.

I don't think they have an way to interprate any HD signal fed to them. The CTR would nees either a VGA connector or component video. And even if it had them I doubt it would be able to cope with the signal frequencies of that resolution.

You did get HD CRTs breifly, i think they were a bit crap though, and really expensive.

EDIT: Oh and technically a regular TV is 720i, but that isn't a real standard, just a way to express the 720x576 resolution of SD footage.

[cougarslam]

I think he means monitor not tv judging by the comment on monitor/gfx.

[Funkstar]

ooops! missed that part

[directhex]

Originally Posted by Funkstar

EDIT: Oh and technically a regular TV is 720i, but that isn't a real standard, just a way to express the 720x576 resolution of SD footage.

576i

and samsung make a few HD CRT TVs

in answer to the original question, a CRT monitor is capable of displaying HD movies at resolution - if there's no image constraint token at play, and if it can show widescreen properly

[bigblue]

I'm not sure if you mean a TV or a monitor. Or if you're connecting a PC to a TV. Your post is a wee bit ambiguous

Originally Posted by Oobie-

Hey guys, I wanted to know if a CRT can be technically considered a HDTV and thus does it actually play 720p videos as 720p?

If it's a TV, then an HD CRT, such as the Samsung Slimfit mentioned, then yes. Most other TV's, no. They're usually capable of 576 horizontal lines.

Most CRT monitors meet the 720 horizontal line requirements, but not all have 1280 wide to allow native 720p.

How I understand it is that its fine up to the "p" bit, as this is a render of a frame which is specific for HDTV's, but surely your codec does that, along with your GFX card.

No, a non-HD CRT TV wouldn't accept 720 lines. A CRT monitor would, providing it has sufficient resolution.

Also "p", for progressive, isn't HD or HDTV only. There are SD TV's, DVD players etc that display 480p/576p. This is still standard def, but progressive. Some of our US friends call this "ED", as if things weren't confusing enough !

[Oobie-]

Apologies guys

I did mean a PC CRT - not a TV.

Say I'm using a desktop resolution of 1600x1200 and I load up a 720p vid. Would I be watching the video in full 720p goodness (Whatever that may entail)?

[Skinleech]

Yes, you would.

[directhex]

720p means "1280x720, progressive scan". computer monitors are all progressive scan.

[Oobie-]

Thanks guys