AVForums

Our philosophy in our forums, reviews, podcasts and feature videos is to promote audio and visual excellence by gathering and sharing the best information and resources available.

Help

To begin please visit our help section »

Not a Member Yet?

It only takes a minute to start enjoying the benefits of AVForums membership, and it's free!

Member Log in

1080p vs 720p explained for once in plain english :)

Post Reply
Old 09-12-2006, 10:04 PM   #1
Member
Join Date: Nov 2006
Experience Points:
2,900, Level: 12
Points: 2,900, Level: 12 Points: 2,900, Level: 12 Points: 2,900, Level: 12
Activity: 0.4%
Activity: 0.4% Activity: 0.4% Activity: 0.4%
Thanks: Gave 1, Got 4
Posts: 127
1080p vs 720p explained for once in plain english :)

its been popping my head wether to buy a 1080p or 720p and wether id actually notice the difference. my living room is pretty small its only 3.5 m by 4.5m so i needed to know if it will be worth the money.to be honest it would be nice getting a 1080p but i personally think it maybe better waiting until the prices drop which they will in a year or two but if you want one now and cant wait i found a easy to understand well explained review on wether youl need it or if it would be a waste of money.

heres the link i hope it will help people out.

http://www.carltonbale.com/blog/2006...p-does-matter/
  Quote
Old 09-12-2006, 11:18 PM   #2
SquintingBadger
Guest
Posts: n/a
Re: 1080p vs 720p explained for once in plain english :)

According to that website, I shouldn't be able to tell the difference between 480 and 720 on my set.

I must have some seriously good eyesight.
  Quote
Old 10-12-2006, 12:07 AM   #3
Prominent Member
 
andrewfee's Avatar
Join Date: Apr 2004
Experience Points:
13,283, Level: 27
Points: 13,283, Level: 27 Points: 13,283, Level: 27 Points: 13,283, Level: 27
Activity: 0%
Activity: 0% Activity: 0% Activity: 0%
Thanks: Gave 131, Got 568
Posts: 3,062
Re: 1080p vs 720p explained for once in plain english :)

Are you doing a proper test, or just comparing two different sources altogether?

Basically it means that if you had a 480p native set, a 720p native one and 1080p native set all the same size / at the same distance, fed the same source, you wouldn't be able to tell the difference.

However, if you're talking about using a 720p native set with a 480p source then yes, you are more likely to see a difference. This isn't because you're seeing more than 480p, but rather 480p doesn't look its full potential as it's being scaled to fit your display. This is why I wouldn't buy a 1080p set unless you're planning on sitting about 4ft from it and using 1080p sources. (if you are using test patterns you'll see the difference on a 40" set around 5ft back, but actual video content isn't that sharp/detailed, so you would have to be closer) If you're about 6ft or so back from it, you're only actually seeing 720p detail, but due to the scaling 720p sources will look worse in comparison on it. (on a 720p native display, 1080p downscaled will look as good as a native 720p source though)

On a 1080p screen, only 1080p will look great, but on a 720p screen both 720p and 1080p sources will. (assuming you're sitting 6/7ft back)

I hope that makes sense...
  Quote
Old 10-12-2006, 8:39 AM   #4
Member
Join Date: Mar 2006
Experience Points:
3,119, Level: 13
Points: 3,119, Level: 13 Points: 3,119, Level: 13 Points: 3,119, Level: 13
Activity: 0%
Activity: 0% Activity: 0% Activity: 0%
Thanks: Gave 19, Got 12
Posts: 174
Re: 1080p vs 720p explained for once in plain english :)

I sit around 8.5 feet away, does that mean I can gen stop waiting for the Goodmans 1080P TV as I will not benift?

Scott
  Quote
Old 10-12-2006, 10:17 AM   #5
Senior Member
Join Date: Sep 2005
Location: University: Lancaster, Home: Cambridgeshire
Experience Points:
15,815, Level: 30
Points: 15,815, Level: 30 Points: 15,815, Level: 30 Points: 15,815, Level: 30
Activity: 0%
Activity: 0% Activity: 0% Activity: 0%
Thanks: Gave 37, Got 216
Posts: 2,698
Re: 1080p vs 720p explained for once in plain english :)

Quote:
Originally Posted by scott8629 View Post
I sit around 8.5 feet away, does that mean I can gen stop waiting for the Goodmans 1080P TV as I will not benift?

Scott
I'd say yes. From 8.5ft you wont notice any difference between 1080p and 720p on a 42" screen.
  Quote
Thanks from:
mcbunny (13-12-2006)
Old 10-12-2006, 10:20 AM   #6
Member
Join Date: Mar 2006
Experience Points:
3,119, Level: 13
Points: 3,119, Level: 13 Points: 3,119, Level: 13 Points: 3,119, Level: 13
Activity: 0%
Activity: 0% Activity: 0% Activity: 0%
Thanks: Gave 19, Got 12
Posts: 174
Re: 1080p vs 720p explained for once in plain english :)

Quote:
Originally Posted by Batch View Post
I'd say yes. From 8.5ft you wont notice any difference between 1080p and 720p on a 42" screen.
What 42" 720P screen then?? ARRGHHH
  Quote
Old 10-12-2006, 10:29 AM   #7
Member
Join Date: Oct 2006
Experience Points:
4,693, Level: 16
Points: 4,693, Level: 16 Points: 4,693, Level: 16 Points: 4,693, Level: 16
Activity: 0%
Activity: 0% Activity: 0% Activity: 0%
Thanks: Gave 2, Got 8
Posts: 268
Re: 1080p vs 720p explained for once in plain english :)

Quote:
Originally Posted by scott8629 View Post
What 42" 720P screen then?? ARRGHHH
Samsung and Sony do the best ones. You could just get a good 40".
  Quote
Old 10-12-2006, 10:35 AM   #8
Veteran Member
Join Date: Oct 2004
Location: Nottingham
Experience Points:
16,736, Level: 31
Points: 16,736, Level: 31 Points: 16,736, Level: 31 Points: 16,736, Level: 31
Activity: 0.7%
Activity: 0.7% Activity: 0.7% Activity: 0.7%
Thanks: Gave 42, Got 341
Posts: 6,193
Re: 1080p vs 720p explained for once in plain english :)

Quote:
Originally Posted by andrewfee View Post
On a 1080p screen, only 1080p will look great, but on a 720p screen both 720p and 1080p sources will. (assuming you're sitting 6/7ft back)

I hope that makes sense...
Considering most broadcast HD source is 1080i and only gaming tends to be in 720p, which you'll tend to be playing close up anyway then I'd say you'd definitely benefit from 1920x1080 screen.
  Quote
Old 10-12-2006, 11:47 AM   #9
Prominent Member
 
andrewfee's Avatar
Join Date: Apr 2004
Experience Points:
13,283, Level: 27
Points: 13,283, Level: 27 Points: 13,283, Level: 27 Points: 13,283, Level: 27
Activity: 0%
Activity: 0% Activity: 0% Activity: 0%
Thanks: Gave 131, Got 568
Posts: 3,062
Re: 1080p vs 720p explained for once in plain english :)

Quote:
Originally Posted by neilmcl View Post
Considering most broadcast HD source is 1080i and only gaming tends to be in 720p, which you'll tend to be playing close up anyway then I'd say you'd definitely benefit from 1920x1080 screen.
Hmm, I guess my explanation wasn't so good, I'll try again. I should point out that I've owned 1080i, 720p and 1080p native screens.

From my own testing, I found that on a 37" 1080p screen, to see the full resolution with a test pattern (alternating black / white pixels for maximum contrast) I had to be within 5ft of the screen. With actual video content, which has lower contrast and tends to be softer, that was closer to 4ft to see the full benefit of 1080p - this was not comfortable in the slightest for me. Any closer than 6ft at this size was too close for comfort, and I preferred 7ft. (where I currently sit from my display)

At this distance, there was no benefit from 1080p, you can basically only see 720p at 7ft back. You can see a difference between the two on a 1080p native set, but that difference is just because 720p is being scaled, not because there is more detail in the 1080p image. (there is, but your eye simply cannot resolve it) After finding this out, I stopped caring about whether or not an LCD was 1080p native or not, and ended up buying a Toshiba 37WLT68, which has a 1366x768 native resolution. (pretty much all you can see at that distance)

The image processing on this set is superior to anything else I've seen, so that alone means that the image in general tends to be better. As it's 720p "native" a 720p signal (my Xbox 360 - which is my main HD source right now) looks better than it did on a 37" 1080p display at this distance. As your eye cannot resolve more than roughly this amount of detail, when sending it a 1080p signal, it looks as good as a native 1080p set at this distance. (better infact, as it has better processing) Not only that, but any artefacting caused by a source being 1080i is going to be minimised by the downscaling process.

This means that I have a TV that looks jaw-dropping with 720p and 1080i/p signals, whereas with a 1080p set would look "great" with 720p and only jaw-dropping with 1080i/p, even though the human eye can only resolve about 720p resolution at this distance. I don't feel the need to sit closer when playing games, as 7ft is close to this size of screen.


What I'm trying to say is don't base your TV purchase on numbers alone. Is 1080p a higher resolution than 720p? Yes, of course it is. But it's not necessarily a better resolution if you're not going to buy a set large enough, or sit close enough, to benefit from it.
  Quote
Thanks from:
Alfiebaker (13-12-2006), smallangryboy (13-12-2006)
Old 10-12-2006, 11:51 AM   #10
Member
Join Date: Oct 2006
Experience Points:
4,693, Level: 16
Points: 4,693, Level: 16 Points: 4,693, Level: 16 Points: 4,693, Level: 16
Activity: 0%
Activity: 0% Activity: 0% Activity: 0%
Thanks: Gave 2, Got 8
Posts: 268
Re: 1080p vs 720p explained for once in plain english :)

So the KDL40W2000 is actually a waste of money for the majority of consumers for that product? Its a 40" 1080P.
  Quote
Old 10-12-2006, 12:14 PM   #11
Prominent Member
 
andrewfee's Avatar
Join Date: Apr 2004
Experience Points:
13,283, Level: 27
Points: 13,283, Level: 27 Points: 13,283, Level: 27 Points: 13,283, Level: 27
Activity: 0%
Activity: 0% Activity: 0% Activity: 0%
Thanks: Gave 131, Got 568
Posts: 3,062
Re: 1080p vs 720p explained for once in plain english :)

I wouldn't say it's a waste of money, the BRAVIAs are fairly good, and their 1366 models (U, S, V) don't accept and scale 1080p signals.

I do think that a lot of people are buying 1080p based on the numbers without taking viewing distance etc into consideration though when they won't see any benefit.
  Quote
Old 10-12-2006, 12:28 PM   #12
BYF BYF is offline
Senior Member
Join Date: Aug 2005
Experience Points:
10,178, Level: 24
Points: 10,178, Level: 24 Points: 10,178, Level: 24 Points: 10,178, Level: 24
Activity: 22.7%
Activity: 22.7% Activity: 22.7% Activity: 22.7%
Thanks: Gave 76, Got 196
Posts: 2,777
Re: 1080p vs 720p explained for once in plain english :)

Also just because a TV has a higher resolution say 1080p, that doesn't mean it will have the best picture quality.

1080p/720p is just the number of pixels it has and thats where it ends, it gives no indication of how good the contrast, black detail/depth, colours, motion, viewing angle, quality of scaling and picture processing and overall detail the TV has.
  Quote
Old 11-12-2006, 1:00 PM   #13
Member
Join Date: Mar 2006
Experience Points:
2,495, Level: 11
Points: 2,495, Level: 11 Points: 2,495, Level: 11 Points: 2,495, Level: 11
Activity: 0%
Activity: 0% Activity: 0% Activity: 0%
Thanks: Gave 16, Got 1
Posts: 32
Re: 1080p vs 720p explained for once in plain english :)

I've been planning to buy the Sony 40w2000 for a while. I expect it's worth considering the 1920 x 1080 panels if you are planning to connect a computer to your TV (higher resolution)?
  Quote
Old 11-12-2006, 1:09 PM   #14
Moderator
 
RottenFox's Avatar
Join Date: Mar 2006
Location: +56°28' 10.92"/-2°59' 21.48"
Experience Points:
146,576, Level: 91
Points: 146,576, Level: 91 Points: 146,576, Level: 91 Points: 146,576, Level: 91
Activity: 52.3%
Activity: 52.3% Activity: 52.3% Activity: 52.3%
Thanks: Gave 1,389, Got 2,800
Posts: 13,500
Re: 1080p vs 720p explained for once in plain english :)

its all in the eye of the beholder..ive seen/used a friends samsung 40" tv,and own a goodmans 1080p 42"tv,and have to say,his samsung doenst look as good as mine.
its all subjective,and user preference.
  Quote
Old 11-12-2006, 5:54 PM   #15
Member
Join Date: May 2004
Location: Droitwich, Worcestershire
Experience Points:
5,736, Level: 17
Points: 5,736, Level: 17 Points: 5,736, Level: 17 Points: 5,736, Level: 17
Activity: 1.1%
Activity: 1.1% Activity: 1.1% Activity: 1.1%
Thanks: Gave 32, Got 27
Posts: 625
Re: 1080p vs 720p explained for once in plain english :)

So forgive me for being thick here, but I'm considering buying a Toshiba 42WLT66 over a Panasonic 42PX60 because the Tosh has more pixels ie 1920x1080 opposed to 1024x768. The Tosh is £1030 and the Panny I can get for £882. I play a fair bit of Xbox 360 and only have Sky+ at the moment but am considering Sky HD. So would one be better than the other or is it personal choice?
  Quote
Old 11-12-2006, 6:34 PM   #16
Member
Join Date: Mar 2006
Location: Netherlands, Nootdorp
Experience Points:
4,663, Level: 16
Points: 4,663, Level: 16 Points: 4,663, Level: 16 Points: 4,663, Level: 16
Activity: 0%
Activity: 0% Activity: 0% Activity: 0%
Thanks: Gave 0, Got 1
Posts: 67
Re: 1080p vs 720p explained for once in plain english :)

If you sit further then 3 mtr from the 42" screen away, there's no use buying a 1920x1080 screen. Pixel wise that is and based on 100% viewing capability. There are other factors like color, design, motion handling etc.

This thread might be not so nice to read, but quite true. I did some calculations for myself as well, for 100% view or 120% view as measured by your opticien. And such a calculation is based on distinguishing between a white and black pixel, not to mention the smooth color gradients in normal film contents. For a 1920x1080 screen you really have to sit close to the screen to benefit from that.

That doesn't mean some voice in me is not saying '1080p screen is better, isn't it?'. It's just the pure physics saying something else.....
  Quote
Old 12-12-2006, 3:59 PM   #17
sajsami
Guest
Posts: n/a
Talking Re: 1080p vs 720p explained for once in plain english :)

After a very, very long time agonising about whether I should buy my 37" model TV in 1080 (and wait for more models to come out with this spec) or take the plunge now with a 768 model, I think that this short conversation so far on this forum has helped me more than many days of researching! I think I will plunge for the 37wlt68 as long as the comments made by AndrewFee are true. That with a 768 model you get a better deal with this spec of TV than a 1080 (as 1080 will not display 768 as well as 768 will display 1080)? This all also begs the question as to mid term advances - will channels on Sky be in 768 or 1080?
  Quote
Old 12-12-2006, 4:09 PM   #18
Member
Join Date: Dec 2006
Experience Points:
2,875, Level: 12
Points: 2,875, Level: 12 Points: 2,875, Level: 12 Points: 2,875, Level: 12
Activity: 0.4%
Activity: 0.4% Activity: 0.4% Activity: 0.4%
Thanks: Gave 46, Got 11
Posts: 338
Re: 1080p vs 720p explained for once in plain english :)

Ok, this is very interesting.

The way my living room is configured, there are two vantage points for my new TV - one at about 6.5ft and another at about 10-11ft.

I was moving towards a Plasma 42" (pio) becuase we watch a lot of movies and SD and sport but would I be better, considering my vantage points and distance going back to thinking about a Sony W?
  Quote
Old 12-12-2006, 4:47 PM   #19
Member
Join Date: Aug 2006
Location: Glasgow
Experience Points:
2,798, Level: 12
Points: 2,798, Level: 12 Points: 2,798, Level: 12 Points: 2,798, Level: 12
Activity: 0.7%
Activity: 0.7% Activity: 0.7% Activity: 0.7%
Thanks: Gave 32, Got 88
Posts: 266
Re: 1080p vs 720p explained for once in plain english :)

Quote:
Originally Posted by boingboing View Post
So forgive me for being thick here, but I'm considering buying a Toshiba 42WLT66 over a Panasonic 42PX60 because the Tosh has more pixels ie 1920x1080 opposed to 1024x768. The Tosh is £1030 and the Panny I can get for £882. I play a fair bit of Xbox 360 and only have Sky+ at the moment but am considering Sky HD. So would one be better than the other or is it personal choice?
I would say this to summarise:

the closer you sit to the TV and the bigger the TV the more you benefit from 1080 resolution (as this increases you ability to make out individual pixels)

native resolution of your input sources is also important as this has a bearing on the amount of conversion / processing that the TV has to do to fill the screen:

- if you watch Sky HD the native resolution is 1080 so in theory you are reducing the amount of conversion and are receiving the picture as it was transmitted
- if you watch SD tv both 720 and 1080 will require scaling ... some would argue that 1080 is easier to scale to as its near to doubling the number of lines of an SD signal … hard to say what is better
- if you plan to use it as a PC monitor then 1080 has an advantage as you get more detail and scaling is less of a problem (most TVs that accept 720 signals are actually 768 lines which either results in scaling or the full screen not being used) .. 1080 screens are typically better at displaying dot by dot PC signals

Having a 46” 1080 screen and sitting about 7 feet away I can definitely see the difference but I probably wouldn’t if the screen was 37”. I would say:

- 1080p – close up / big screen – amazing picture
- 720p – close up / small screen - great picture
- 1080p – far away / small screen – great picture

P.S. Regarding the Toshiba it does not seem to be as well featured as some of the newer screens. I don’t think it accepts 1080p signals (limited to 1080i … which is Sky HD anyways). It also does not have a dot by dot mode so its not great as a PC monitor. Also, if you plan to game a lot make sure you are aware of the burn in issues with plasmas (although many would say this is not a problem).
  Quote
Old 12-12-2006, 8:50 PM   #20
Member
 
Benedict's Avatar
Join Date: Mar 2003
Location: Welton, East Yorkshire
Experience Points:
3,576, Level: 14
Points: 3,576, Level: 14 Points: 3,576, Level: 14 Points: 3,576, Level: 14
Activity: 0%
Activity: 0% Activity: 0% Activity: 0%
Thanks: Gave 2, Got 20
Posts: 431
Re: 1080p vs 720p explained for once in plain english :)

Quote:
Originally Posted by Grimaldi View Post
P.S. Regarding the Toshiba..... It also does not have a dot by dot mode so its not great as a PC monitor.
It does have a dot by dot mode, called Exact Scan, which is available when a 1080i signal is present on either of the HDMI inputs or the component input.
  Quote
Old 13-12-2006, 9:40 AM   #21
Member
Join Date: Aug 2006
Location: Glasgow
Experience Points:
2,798, Level: 12
Points: 2,798, Level: 12 Points: 2,798, Level: 12 Points: 2,798, Level: 12
Activity: 0.7%
Activity: 0.7% Activity: 0.7% Activity: 0.7%
Thanks: Gave 32, Got 88
Posts: 266
Re: 1080p vs 720p explained for once in plain english :)

Quote:
Originally Posted by Benedict View Post
It does have a dot by dot mode, called Exact Scan, which is available when a 1080i signal is present on either of the HDMI inputs or the component input.
Sorry about the confusion, I went on the info from memory (about 6 or more months back when the TV first came back and I was interested in it) and at that point it the 1:1 Pixel Mapping info page said 1:1 was not supported.

Perhaps the newer models have been updated in some way as the 1:1 Pixel Mapping info page appears to imply.

http://pixelmapping.wikispaces.com/Toshiba+TVs
  Quote
Old 13-12-2006, 10:04 AM   #22
Senior Member
 
youngsyp's Avatar
Join Date: Nov 2006
Location: Sunny Milton Keynes
Experience Points:
5,613, Level: 17
Points: 5,613, Level: 17 Points: 5,613, Level: 17 Points: 5,613, Level: 17
Activity: 7.6%
Activity: 7.6% Activity: 7.6% Activity: 7.6%
Thanks: Gave 83, Got 234
Posts: 2,294
Re: 1080p vs 720p explained for once in plain english :)

Quote:
Originally Posted by RottenFox View Post
its all in the eye of the beholder..ive seen/used a friends samsung 40" tv,and own a goodmans 1080p 42"tv,and have to say,his samsung doenst look as good as mine.
its all subjective,and user preference.
I agree. You can't say that everyone won't be able to see the difference at differing viewing distances. Everybodies eyes are different, as with picture settings, I feel it's very subjective !
I personally can see the difference between a 720p, 1080i and 1080p image on my Sony 40W and the 1080p image looks far superior (at least on my Xbox 360), in terms of definition, and I sit around 13' away from my display.
  Quote
Old 13-12-2006, 10:12 AM   #23
Member
Join Date: Nov 2004
Experience Points:
2,894, Level: 12
Points: 2,894, Level: 12 Points: 2,894, Level: 12 Points: 2,894, Level: 12
Activity: 0%
Activity: 0% Activity: 0% Activity: 0%
Thanks: Gave 14, Got 5
Posts: 143
Re: 1080p vs 720p explained for once in plain english :)

hi grimaldi you say....
"Having a 46” 1080 screen and sitting about 7 feet away I can definitely see the difference but I probably wouldn’t if the screen was 37”."

this sounds just right 4 me, I sit this distance away with my headphones so all the background noise and phone calls dont disturb me so much...do you mind saying which tv it is?? I'll get one..

thks
  Quote
Old 13-12-2006, 11:10 AM   #24
Member
Join Date: Aug 2006
Location: Glasgow
Experience Points:
2,798, Level: 12
Points: 2,798, Level: 12 Points: 2,798, Level: 12 Points: 2,798, Level: 12
Activity: 0.7%
Activity: 0.7% Activity: 0.7% Activity: 0.7%
Thanks: Gave 32, Got 88
Posts: 266
Re: 1080p vs 720p explained for once in plain english :)

Quote:
Originally Posted by nicp01 View Post
hi grimaldi you say....
"Having a 46” 1080 screen and sitting about 7 feet away I can definitely see the difference but I probably wouldn’t if the screen was 37”."

this sounds just right 4 me, I sit this distance away with my headphones so all the background noise and phone calls dont disturb me so much...do you mind saying which tv it is?? I'll get one..

thks
I've now had a couple. The first one was the Sharp 46 XD1E which was a lovely set but suffered from banding and a buzzing noise. After a month I finally sent it back.

I now have a Sony 46W2000. Again, a very good set, however it suffers from backlight bleed which has been documented well within the Sony W Series thread. Apart from the bleed its a great TV.

Both sets have great PQ aside from their faults and there are many owners who have not had those issues. The sets are also well priced for what you get, the Sharp in particular (it can be picked up online for <£1900).
  Quote
Thanks from:
nicp01 (13-12-2006)
Post Reply



Thread information and display options
Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off