1080i native resolution

[zjeepgozweeln]

OK. I am familiar with all the HD resolutions and what they mean(720p, 1080i, 1080p, etc.). I've seen some manufacturers advertising their displays as 1080i. I have yet to come across one that advertises 1080i to actually be 1920x1080 native resolution. Usually it's a 1280x720p or 1366x768 native resolution and the set scales the 1080i signal back to 720p, unless of course the HDTV is a full 1920x1080p resolution.

My question is: Are there sets out there with a full 1920x1080 resolution that only display 1080i and not 1080p? I guess maybe some CRTs can display 1920x1080i? But, none of the flat panels?

 

[MDS]

My question is: Are there sets out there with a full 1920x1080 resolution that only display 1080i and not 1080p? I guess maybe some CRTs can display 1920x1080i? But, none of the flat panels?

If the native resolution is 1920 x 1080 then it is a 1080p display. The catch is that it may not accept 1080p as input. If the display is advertised as a '1080i display' that simply means that 1080i is the highest resolution it can accept as input and tells you nothing about the native resolution of the tv itself.

If the display is advertised as a 1080p then it has the full 1080p native resolution but you have to read the features list or the manual to find out if it can accept 1080p as input. As usual though, it will scale any incoming resolution to 1080p.

 

[evilkat]

If the native resolution is 1920 x 1080 then it is a 1080p display. The catch is that it may not accept 1080p as input. If the display is advertised as a '1080i display' that simply means that 1080i is the highest resolution it can accept as input and tells you nothing about the native resolution of the tv itself.

If the display is advertised as a 1080p then it has the full 1080p native resolution but you have to read the features list or the manual to find out if it can accept 1080p as input. As usual though, it will scale any incoming resolution to 1080p.

Yep, 1080i = 1080p and you should NOT see a difference between the two PQs image-vise. But because de-interlacers on most TVs suck, 1080i will not be as nice as 1080p from a native source.

The question is, will the TV accept 1080p, as MDS said above.

 

[BMXTRIX]

No TV should be advertised as a 1080i display unless it actually is a 1080i display.

Many CRT rear projection televisions and CRT standard tube type televisions are 1080i native displays. They accept 1080i and display it as a true 1080i signal. Many of these displays do NOT accept 720p HDTV which is a very poor thing for any HDTV not to be able to do.

But, when you are talking about a digital display - including DLP, LCD, and LCoS, then you are talking about a progessive display. The ONLY number that matters is the native resolution of that display.

1920x1080, 1365x768, 1280x720, 1024x768, and 854x480 are the most common resolutions you will run into with digital displays for home theater.

It is important to know that 1080i DOES NOT EQUAL 1080p. But, at 60hz there is almost nothing that is 1080p out there. Since movies are 24hz, they should be handled at 1080i or 1080p and look identical. But, this is rarely going to be the case due to poor deinterlacers in many displays.

The bottom line answer to your question is that you have things correct in your head already. The ONLY displays that are native 1080i will be CRTs. Digital displays are all progressive and a 1920x1080 digital display may only handle a 1080i signal and not a 1080p signal, but the display itself will still have to convert it to 1080p to show correctly on screen.

 

[agarwalro]

My question is: Are there sets out there with a full 1920x1080 resolution that only display 1080i and not 1080p? I guess maybe some CRTs can display 1920x1080i? But, none of the flat panels?

I have noticed that some PJs are 1920x1080 native and some LCDs in the 42" size.