No such thing as 1080i TV's???

[frenzy987]

I am hoping you guys may help shed some light for someone who for all intents and purposes we shall call Bourkie that is trying to tell me that there is no such thing as a 1080i display and in actual fact they all display 1080P when it gets to the screen.

He claims that there is no such thing as a 1080i display and does not believe that my Sony KVHR36M31 (XBR960) is showing a 1080i signal but is infact showing a 1080P signal on screen. Can you guys shed some light on this?

[raouliii]

The XBR960 scans the crt at a fixed scan rate of 1080i/540p.

[fugiot]

Well, uhhh, they're 1080i because they scan in an interlaced fashion. What's to argue?

[xrox]

Originally Posted by frenzy987

I am hoping you guys may help shed some light for someone who for all intents and purposes we shall call Bourkie that is trying to tell me that there is no such thing as a 1080i display and in actual fact they all display 1080P when it gets to the screen.

He claims that there is no such thing as a 1080i display and does not believe that my Sony KVHR36M31 (XBR960) is showing a 1080i signal but is infact showing a 1080P signal on screen. Can you guys shed some light on this?

He is probably referring to pixel based displays like LCD, Plasma, and DLP which cannot display interlaced formats and must convert them to progressive (with the exception of ALIS plasma panels).

CRTs on the other hand can display interlaced formats and the TV you have does in fact display 1080i.

[Wickerman1972]

This depends on what type of HDTV you are talking about. When it comes to DLP, LCD, and Plasma none of those actually display 1080i. They can support it ( Meaning they can accept that signal. ) but they can't display it because all of those types of televisions have fixed pixels and are progressive in nature. So they will scale the 1080i signal to either 720p or 1080p depending on what the native resolution of the particular set is.

However, with CRTs it is different. In a way you can say that 1080i CRT HDTVs aren't really 1080i because none of them sold on the consumer market actually display that many pixels. True 1080i is 1920 X 1080 interlaced. But the resolution of most CRT HDTVs is app. 800-900 X 1080. The closest any have come to true 1080i is past Sony models which had what Sony called Super Fine Pitch Tubes. Those had an interlaced resolution of 1440 X 1080. Unfortunately those are not manufactured anymore. There are CRTs that exist that display true 1080i and even 1080p in some instances. But those are not sold in stores and are not mass produced. They cost many thousands of dollars and are primarily used by movie studios.

[Wytchone]

Originally Posted by Wickerman1972

This depends on what type of HDTV you are talking about. When it comes to DLP, LCD, and Plasma none of those actually display 1080i. They can support it ( Meaning they can accept that signal. ) but they can't display it because all of those types of televisions have fixed pixels and are progressive in nature. So they will scale the 1080i signal to either 720p or 1080p depending on what the native resolution of the particular set is.

However, with CRTs it is different. In a way you can say that 1080i CRT HDTVs aren't really 1080i because none of them sold on the consumer market actually display that many pixels. True 1080i is 1920 X 1080 interlaced. But the resolution of most CRT HDTVs is app. 800-900 X 1080. The closest any have come to true 1080i is past Sony models which had what Sony called Super Fine Pitch Tubes. Those had an interlaced resolution of 1440 X 1080. Unfortunately those are not manufactured anymore. There are CRTs that exist that display true 1080i and even 1080p in some instances. But those are not sold in stores and are not mass produced. They cost many thousands of dollars and are primarily used by movie studios.

Just what I was looking for. So Tubes never showed a full 1920x1080i? So tubes when they said 1080I are really 800-900x1080i?

[Wickerman1972]

Originally Posted by Wytchone

Just what I was looking for. So Tubes never showed a full 1920x1080i? So tubes when they said 1080I are really 800-900x1080i?

Yep. Believe me, if those things were actually 1080i, REAL 1080i, they'd absolutely smoke the PQ of flat-panels. But because the resolution is cut by more than half of what is advertised flat-panels don't look bad in comparison. Sure, the blacks aren't as good and there is motion blur and all that, but the flat-panels have a sharper picture.

[Wytchone]

Well thanks for that little tib bit of info!

[aj73092]

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[Wickerman1972]

Originally Posted by Wytchone

Well thanks for that little tib bit of info!

Now, I've heard that there have been projection tube TVs that are truly 1080i. Ones that have 9" guns are suppose to be able to display the full 1920 X 1080 resolution from what I've heard. But when it comes to these smaller, non-projection CRTs that usually go up to around 34" ( There have been a few bigger than that but not many. ), and have glass screens, none of those are truly 1920 X 1080. Except for ones that sell for app. $50,000 to movie and television studios.

[Wytchone]

CRT-RP I have no issues with. It was that when I purchased my Tube back in 02 I think I just HD @ 1080I. Just never thought that HD 1080I was 800X1080I. Would say I feel cheated but I have a CRT-RP now but I am working on a HTPC and while my tube takes 1920X1080I I noticed something is off.

Time to play with the settings

Thanks for the answer guys!