Comments on: 1080i vs p,what is the difference between them?

By: Dave

Dave — Fri, 15 Jan 2010 00:28:41 +0000

I have the same question as Alan. I have a 1080i TV, even though it was sold to me as a full 1080 TV. I didn’t realize until after I purchased it that it was only 1080i (as opposed to P). I am considering a Blue Ray DVD Player but wonder if it would make any difference compared to a regular 720P format.

By: Laercio Marques

Laercio Marques — Tue, 05 Jan 2010 05:18:40 +0000

I just switched from advanced cable to ATT cable and noticed a little degradation in image quality in HD. I checked the setup and realized that ATT uses 1080i while Advanced Cable used 1080p. The only options I have are 4:3; Wide Screen; 720p or 1080i.
I changed it to 720p and the image quality seems to be a little better.
I don’t know if I caould do something else to have the same quality image as I had with Advanced Cable Communications, with 1080p. Any suggestion?

Laercio Marques

By: admin

admin — Mon, 21 Dec 2009 01:57:01 +0000

Sorry for missing mention Its doesnt have different on LCD HDTV, because they have ability to display 1080p even the source is 1080i, but in case of CRT HDTV which dont have such ability, it does have few different when watch fast moving sence, but should not be noticeable on CRT TV less than 50″.

By: Alan

Alan — Mon, 21 Dec 2009 00:36:29 +0000

I disagree with the point where the author mention “there is nonsense to compare 1080i and 1080p at display level or compare HDTV based on 1080i and 1080p”. I currently have a 34″ CRT HDTV and it supports up to 1080i but not 1080p. I understand the theory behind p & i but the reason I search around is because I have a Blu-Ray player that can play at 1080p but my TV is only 1080i. I want to know if it will be any difference if I connect it to a 1080p TV.

But this article does not answer it.

By: Scott

Scott — Thu, 26 Nov 2009 05:05:45 +0000

Not much, as the article has stated. I’ve watched i and p sources on my 60″ LCD and there’s not a lot of difference I can see. The p may be a *tad* smoother, but maybe that’s just the brain drinking the kool-aid. Is the source (i.e. blu-ray player) running through a surround receiver or other processor or is it running straight into the TV? I’ve seen cases where running HDMI into a surround sound receiver INSTEAD of directly to the TV causes this issue due to the limitaions of that device, but usually signals input through HDMI in this fashion should just “pass through” whatever the signal is (i or p) to the TV.

By: admin

admin — Wed, 25 Nov 2009 19:31:54 +0000

JayZee says:
October 23, 2009 at 6:42 am

The article forget to cover one thing. If blue ray movie was made with 1080p, and TV is DLP 1080p, but the transmission is 1080i, because of mis-configuration or bad cable, would there be any difference? This happens quite often as I often see friends system both are 1080p but with careful examination the blue-ray was sending signals in 720p or 1080i.