1080p ??

[bigben]

What does 1080p mean? I know the definition is 1080 horizontal lines or something to that effect, but how does that actually work? For example, how can my 15.6" laptop, my 24" monitor, my 32" TV and my brothers 42" TV all have the same resolution and look as clear as each other?
I know it's a bit of a random question but yeah..

Thanks

 

[Wozza63]

They will all look the same because of the distance, you will likely have the laptop on your lap, but the monitor will be a desk length away, and the TVs will be half a room distance away, but if you went up close to the TV as if it was a laptop you would probably be able to count the pixels individually

but the laptop will be the clearest technically as it will have the highest ppi (pixels per inch) and a 1080p phone (yes thats possible now :S) will look incredibly clear compared to any TV or monitor due to having over 400ppi

 

[lewishollings]

I completely understand what you mean actually, you're basically saying how can they all be the same amount of pixels and be as clear as each other on bigger sized screens? always confused me a bit.

 

[mgsolidus]

It doesn't matter on the screen size. 1080p means there are 1080 vertical lines on your screen, and if the screen has a 16:9 ratio, there is 1920 horizontal lines. 1920x1080.
You can squeeze the same amount lines onto a 5 inch mobile phone screen too, which will also have a 16:9 ratio, meaning 1080p.

 

[bigben]

Hmm.. Yeah, you're right just the perspective.. Thanks

 

[dogbot]

Video can be progressive or interlaced. If progressive (1080 25p) then the whole screen is scanned line by line every 1/25 second. If interlaced (1080 50i) then every other line is scanned alternately every 1/50 of a second.

 

[Tom DWC]

Pretty much as above.

Another example, if you run a game at 1920x1080 on a 17" laptop, and a 42" plasma, you'll get the same frame rate, because the resolution is the same, regardless of the difference in screen size. It doesn't matter because the same about of pixels are being drawn.

Obviously there are many other factors though, such as the actual quality of the screen itself.

As good as full HD 1080p is, the human eye can still see much more detail. For example, some MacBook Pros are now available with a screen resolution of 2560 x 1600.

Also, in the not too distant future 4K is going to be the eventual replacement for the Blu-Ray format, and is 4 times the resolution of 1080p. 8K might also be available soon after but the human eye cannot detect anything above 8K, or so I read.

For an example of 4K watch this in "original" quality (but good luck buffering it!) http://www.youtube.com/watch?v=Cx6eaVeYXOs

And unless you have a resolution of 3840 x 2160 you won't be able to see it in all of its glory..
.

 

[Karnor00]

Also, in the not too distant future 4K is going to be the eventual replacement for the Blu-Ray format, and is 4 times the resolution of 1080p. 8K might also be available soon after but the human eye cannot detect anything above 8K, or so I read.

The thing is, that if you sit the recommended distance (about 8-10 feet) from a 40 inch screen, most people can't even distinguish the pixels in a standard HD TV. So going to even 4k is pretty pointless unless you have space (and cash) for a truly gigantic TV, or like sitting so close you have to read the screen from left-right.

 

[Keedar]

Tom what i know youtube works with 30fps only so i not undersand why people are care so much.Titles like 100 fps is a fake.I tried to do this the same but as i said yt works only at 30 fps.Maybe something changed right now if yes please let me know.

 

[Tom DWC]

The thing is, that if you sit the recommended distance (about 8-10 feet) from a 40 inch screen, most people can't even distinguish the pixels in a standard HD TV. So going to even 4k is pretty pointless unless you have space (and cash) for a truly gigantic TV, or like sitting so close you have to read the screen from left-right.

Well none of us can really know until it's released, what certain cinemas are doing isn't actually true 4K yet. But I agree with you the quality is already phenomenal. I'm only going to change over when the price comes down enough and even then, won't be replacing my Blu-Rays as I did DVDs. Will just buy new releases in 4K and keep the Blu-Rays.

Tom what i know youtube works with 30fps only so i not undersand why people are care so much.Titles like 100 fps is a fake.I tried to do this the same but as i said yt works only at 30 fps.Maybe something changed right now if yes please let me know.

I only meant for gaming, not for video.

Video is usually at 24fps, everything you see in cinema is usually at 24fps apart from the new 48fps releases (which personally I don't like, it makes films look too unrealistic in my opinion).

And indeed 30fps is fine and 60fps is better, but above that 100fps would be wasted due to being limited by the 60Hz refresh rate. I guess the only exception would be for people with 120Hz monitors, but it's not really practical to run modern games at 120fps and I would question the benefit.

 

[Keedar]

So where is the point to put like 96 fps in tittle?

 

[Tom DWC]

So where is the point to put like 96 fps in tittle?

96fps in the title? I'm confused.

Oh wait sorry I get you, the video title. I don't know why the author has given it that title to be honest with you* I was just posting it for a demonstration of 4K image quality, which it is.

*Probably a reason for it, usually is, if anyone knows enlighten me!

 

[Tom DWC]

Just asked Google and given from various posts on forums people seem to shoot at such a high frame rate for effect with 4K video, especially when filming nature/animals by the looks of it.

I guess it's to make it look free-flowing/smooth? Can't imagine it would work for something like an action scene, like the new Hobbit movie looked like a video game and very plastic at times, and that was only 48fps!