1080i and 1080p

[Knoxer]

Hello, I'm new here and I'm kind of a tech geek and know more about computers that about TV's. I was wondering what is the difference between 1080i and 1080p? My current TV is 1080i and still looks and sounds great with my blu-ray player and there difference between BD and DVD is very noticeable.

But am I missing much without 1080p?

[cartier]

First, you have to understand the "i" refers to interlaced and "p" progressive. 1080 means that your TV has a 1080 vertical resolution (running from left to right but stacked from bottom to top). Interlaced video will display the odd numbered lines first and then fill in the rest with a delay. Progressive video will update every line at the same time. This allows for a smoother picture especially during action sequences. Not everyone can tell the difference, it depends on your home tv setup. You should go into a store and see a 1080p TV for yourself. I would recommend a Sony Style store as their TVs are usually setup well with HDMI and the rest.

[Lord_Phan]

You're missing a few million pixels a second. But still a huge upgrade from 480i DVD.

[Septimus Prime]

Originally Posted by cartier

First, you have to understand the "i" refers to interlaced and "p" progressive. 1080 means that your TV has 1080 vertical lines (running from left to right but stacked from bottom to top). Interlaced video will display the odd numbered lines first and then fill in the rest with a delay. Progressive video will update every line at the same time. This allows for a smoother picture especially during action sequences. Not everyone can tell the difference, it depends on your home tv setup. You should go into a store and see a 1080p TV for yourself. I would recommend a Sony Style store as their TVs are usually setup well with HDMI and the rest.

You mean horizontal lines. The displays have 1920 vertical lines and 1080 horizontal lines.

[MOONPHASE]

if it is below a 40 inch screen it will be in 720p/1080i automatically because you have to have a 40 inch tv or higher to get a screen with 1080p screen. but if your screen is below a 40 inch then 720p/1080i screen would look very nice but if your screen is bigger then a 40 inch then i recommend 1080p. however at 1080i it will still get you going and get a great picture

[Blu-Beard]

Originally Posted by MOONPHASE

if it is below a 40 inch screen it will be in 720p/1080i automatically because you have to have a 40 inch tv or higher to get a screen with 1080p screen. but if your screen is below a 40 inch then 720p/1080i screen would look very nice but if your screen is bigger then a 40 inch then i recommend 1080p. however at 1080i it will still get you going and get a great picture

1080p is available below 40"

[MOONPHASE]

Originally Posted by Blu-Beard

1080p is available below 40"

that cant be right and even if it is true it wouldnt look great at all

[Septimus Prime]

Originally Posted by Blu-Beard

1080p is available below 40"

I'm going to co-sign your post.

I personally own a 37" 1080p set, and I have a friend (Superking) who owns a 32" 1080p set.

They do very much exist.

[lildon24]

Check this out

32 inch HDTV in 1080p!!!

http://www.amazon.com/Sharp-Aquos-LC.../dp/B000NEDYEC

[gavomatic57]

Originally Posted by MOONPHASE

that cant be right and even if it is true it wouldnt look great at all

A 24" PC monitor has sufficient pixels for 1080p. It actually has 1920x1200, so is quite a way beyond 1080p, so the panels are available.

[rondanto]

How Come All Sony Sets Below 40" Have A Native Resolution Of 720p In Ther Specifications?

[lch]

Originally Posted by Lord_Phan

You're missing a few million pixels a second. But still a huge upgrade from 480i DVD.

just 1 million only.
720p = 1 M Pixel
1080p = 2 M Pixel

Originally Posted by rondanto

How Come All Sony Sets Below 40" Have A Native Resolution Of 720p In Ther Specifications?

Below 40", you can't really see the difference between 720p and 1080p.

[Knoxer]

Originally Posted by MOONPHASE

if it is below a 40 inch screen it will be in 720p/1080i automatically because you have to have a 40 inch tv or higher to get a screen with 1080p screen. but if your screen is below a 40 inch then 720p/1080i screen would look very nice but if your screen is bigger then a 40 inch then i recommend 1080p. however at 1080i it will still get you going and get a great picture

Mine is a 40" exact.

[werewuf]

Originally Posted by lch

Below 40", you can't really see the difference between 720p and 1080p.

A lot of manufacturers and reviewers (including Pioneer and Home Theater Magazine) feel that below 50" most can't see the difference between 720P and 1080P. That's why Pioneer's two 42" models (regular & Elite) are both 720p.

[jk1138]

I hae a 42" and a 32" and I see a big diffrence, but I know what you mean, the bigger the set, the more you will notice.

[Sonny]

Oh moon , what can I say ??? Blu-ray is the BEST!!!! 50''+ constitute 1080p IMHO but people have there own & thats a good thing I'm not arguing the matter , its all in the eye of the beholder

[cartier]

Originally Posted by Septimus Prime

You mean horizontal lines. The displays have 1920 vertical lines and 1080 horizontal lines.

It has been my experience that 1080 while running horizontally (left to right across the screen) are termed vertical lines of resolution because they are stacked vertically going up from bottom to top. I thought it was weird at first too but most every article I have read about 1080p has called them vertical lines of resolution.

EDIT: Although I see now that I left off the important phrase "resolution", It should have read "a 1080 vertical resolution" I will make that change now.

The marketing minions have been working overtime lately, pitching the wonders of televisions featuring 1080 progressive lines of resolution (1080p). Translated to English, that s 1080 lines of vertical resolution, with 1920 pixels on each line. Based on what those minions have told me, 1080p will not only change my life, it will future proof my HDTV purchase. After all, since it s true HD, it stands to reason the picture on these sets should blow me away.

LINK

The above quote is the source material for the Wikipedia entry on 1080p. Although not the most reliable website out there I thought I would provide the origination of my own investigation into 1080p which then lead to other more reliable sources.

EDIT:

Vertical resolution: This is the number of horizontal lines that can be resolved in an image from top to bottom. The old familiar CRT TV displays 576 lines, while Digital HD television operates at a resolution of either 720 or 1080 lines. This is the most important resolution as it is most noticeable to the human eye.
Horizontal resolution: This is the number of vertical lines that can be resolved from one side of an image to the other. Horizontal resolution varies depending on the source. The number of horizontal pixels is not quite so critical as vertical resolution as it is not as obvious to the human eye during normal viewing.

LINK

[Kuraudo]

Originally Posted by lch

just 1 million only.
720p = 1 M Pixel
1080p = 2 M Pixel
Below 40", you can't really see the difference between 720p and 1080p.

I don't get how people can still report this old wise tale.

Turning any game like Crysis from 1280x720 to 1920x1200 is an extreme difference in quality. The same can be said when comparing those 720p movies to 1080p, there is a phenomenal difference on my 24" monitor. The eyes can see much more than just 2 million pixel quality, the human eyes are not limited to this type of man made technology. I believe people haven't taken a good look outside in their own environment, too often glazed over a Tv screen dictating the real world. A lot of people haven't viewed 2560x1600 photographs on a native screen of that res.
People often say they can't say see the difference is because well they are looking at 1920x1080p sources on a lower source tv that only supports a max of 1024x1080 or 1280x720 pixels and does not resolve the great fine details. I don't know how you people can't see it.I have only 20/30 vision and I can see it all too clearly. -OT My Mom of all people can see it
and also isn't satisfied with my Uncles 720p TV and that Samsung Purchase I have and tells me to get that Sony I wanted in the first place -OT
Observe everything in your room. Take a picture of it. Notice that even in 1080 you don't see all the details on you thought you saw on camera.
Our eyes are much more advanced in viewing frame rates and resolution. If a light flickers 1/300th of a second we very well can see that too.

[Sonny]

The human eye can only see so much, screen size plays a role in this along with distance

[Beta Man]

remember those old BIG SCREEN tvs... and they looked like crap compared to a little 27" crt.... SAME RESOLUTION......

a 27" 720P will look better than a 100" 1080p LCD...... it's a Size-to-resolution ratio....

If you bought a 37" 1080p, great.... but I would have recommended a 720p at that size (unless you use it as your computer monitor and sit 2 feet away)


Hate to break it to you guys..... but size does matter.