1080p v 720p

[NokkonWud]

1080p gives the sharper image, it doesn't mean it makes the game better, infact on current hardware architecture the effects of 1080p can give a negative effect to the game with developers reducing the frame-rates etc..

Quite interesting if you read up about it.

 

[TONY]

I have a 46" 1080p display and there is a noticeable difference between 720p and 1080p if you sit close enough but not a huge difference, I hope to get a projector in the near future that supports 1080p and on a screen 100"+ the difference between 720p and 1080p will be much more obvious as this is really what 1080p is for and not for the smaller tv's that people would normally have in there living rooms.

 

[marscay]

quite awhile ago some extremely respected members of the AV world said 1080p on anything less than a 60-70" screen is overkill and 720p is all that's needed.

 

[Kreeeee]

quite awhile ago some extremely respected members of the AV world said 1080p on anything less than a 60-70" screen is overkill and 720p is all that's needed.

All that's needed is 640*480. At 40" you notice 1080p vs 720p.

 

[fornowagain]

Only if you sit twice as close to the screen or get a tv twice the size.

The wavelength of light is between 400nm and 700nm and the pupil of the eye is about 5mm.

sin-1 (550nm/5mm) = 0.0063 degrees.

Then 2m*sin(0.0063) = 0.22mm.

That means at 2m at best you can make out individual pixels 0.22mm apart, any closer together than that and increasing the resolution has no effect.

Rayleigh's Criterion? I've worked with that for non contact measurement devices. Iirc even the best eyesight is double the theoretical diffusion limit.

 

[marscay]

All that's needed is 640*480. At 40" you notice 1080p vs 720p.

i haven't seen as good a HD picture on many smaller 1080p sets versus my 56" 720p sagem DLP.

exception being the 1080p SXRD DLP's which look slightly better...if you're lucky enough to get one without the green blob.

or high end plasmas which cost a bomb

 

[Energize]

Rayleigh's Criterion? I've worked with that for non contact measurement devices. Iirc even the best eyesight is double the theoretical diffusion limit.

No idea. In my AS physics book it's just called the single slit diffraction minimum.

 

[Dutch Guy]

The difference is only really noticable on a big screen and when you do not sit too far away.

I got my 1080p 40W2000 because it was an offer as I basically got a free PS3, some games and other stuff and the fact that the 40W2000 has very good blacks and has a very good scaler so normal cable looks very good as well.

 

[fornowagain]

No idea. In my AS physics book it's just called the single slit diffraction minimum.

Ah right, then you're using the wrong formula. The one you want is Rayleigh's Criterion for the minimum resolvable detail with a circular aperture, only a bit different. Its on wiki



The average persons angular resolution is a bit worse than the theoretical limit (1.342x10-4 for 550nm, 5mm lens, 0.26mm@2m), iirc between 2x10-4 to 5x10-4. So for your 2m example, 0.4mm to 1mm

Set this to 2x10-4, any less and the two objects start to become one, time you get to 1.3 they've merged.

 

[Psyk]

I'm looking at getting a new TV. So given that I'll probably go for something like 32" I take it there's no point in getting one that does 1080p? That makes things a bit simpler.

 

[Dutch Guy]

I'm looking at getting a new TV. So given that I'll probably go for something like 32" I take it there's no point in getting one that does 1080p? That makes things a bit simpler.

AFAIK the 1080p models start at 40" and bigger anyway due to the reasons mentioned above.

 

[Psyk]

AFAIK the 1080p models start at 40" and bigger anyway due to the reasons mentioned above.

720p it is then. Really don't feel the need for anything bigger than 32".

 

[Dutch Guy]

720p it is then. Really don't feel the need for anything bigger than 32".

I thought that when I got a 32" CRT two years ago, after a while I found it small, now I have a 40" LCD for 3 months and at first I thought it was huge but now I am starting to think I should have gone for a 46" one instead

 

[Fr0dders]

Actually nearly all 360 and ps3 games are rendered at 720P and scaled upto 1080P by the respective consoles. I think there is 1-5 games that are natively rendered at 1080p on the 360 (And then scaled down if you use a 720P display), Probably abut 1-5 on PS3 as well. (This is all excluding XBLA and PS store games).


rp2000

there are 7 on the PS3

plus another 10 or so due.

plus Gran Turismo HD demo which is a freedownload from the store

To say there are approx 26 titles on the PS3 at the moment, thats not bad !

360 on the other hand is a bit different. i think thats much less

 

[Psyk]

I thought that when I got a 32" CRT two years ago, after a while I found it small, now I have a 40" LCD for 3 months and at first I thought it was huge but now I am starting to think I should have gone for a 46" one instead

Well it seems the cheapest 1080p TV Ocuk has is over £800. Bit over my price range and I don't suppose anywhere else will have a decent one significantly cheaper.

 

[Fr0dders]

Well it seems the cheapest 1080p TV Ocuk has is over £800. Bit over my price range and I don't suppose anywhere else will have a decent one significantly cheaper.

nope

largely due to the fact there are no 32" TVs that are 1080P at the moment, probably because its pointless at this resolution

but with all 1080P tvs being 40" or more, it does mean decent ones are in the region of £800 +

 

[JaFFa]

there are 7 on the PS3

plus another 10 or so due.

plus Gran Turismo HD demo which is a freedownload from the store

To say there are approx 26 titles on the PS3 at the moment, thats not bad !

360 on the other hand is a bit different. i think thats much less

does anybody now off hand which ps3 titles are in 1080p ?

 

[Fr0dders]

does anybody now off hand which ps3 titles are in 1080p ?

http://www.ps3forums.com/showthread.php?t=76417