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[Hardware Info] LG 34UM95: 21:9 UltraWide QHD 34-inch monitor - Page 9  

post #81 of 1057
so then, with 2560x1440 on this monitor would there be a lot of interpolation? because id probably be running 1080p(2560x1440) for games on this monitor... i read some blogpost saying that with 1080p on 4K there is no interpolation since its 4x the pixels like you mentioned... Thanks in advance
post #82 of 1057
You don't get... The aspect ratio is the problem, you can run 2560x1440p on it without interpolation, but the problems you would encounter while running 16:9 AR resolutions on 21:9 AR monitors are:

1) running at a scale-to-fit full screen would result in the image spreading like the one shown below
Click (Click to show)

2) running at a maintained 16:9 AR would result in huge black bars at the right and left sides of the monitor. You would lose that wide-screen viewing angle.
Click (Click to show)
No Widescreen 16:9


Widescreen 21:9

3840x2160p = 16:9 AR
2560x1440p = 16:9 AR
1920x1080p = 16:9 AR

5120x2160p = 21:9 AR
3440x1440p = 21:9 AR
2560x1080p = 21:9 AR
Edited by Yungbenny911 - 4/19/14 at 12:22am
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post #83 of 1057
That answers my question, i wasn't planning on running much content in 16:9. i got a little confused with this being 5K technically.

Another question, since you seem to know your stuff smile.gif
So this monitor, like other 21:9 monitors, supports the whole dual view thing where you can have two side by side inputs from two separate devices. Would those side by side images be a 4:3 aspect ratio then? like say i wanted to play a game on the right side and run my pc on the left side would they just operate in 4:3?
post #84 of 1057
Yes thumb.gif
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post #85 of 1057
Just to clear up some possible confusion, 3440x1440 is a rather bollocks resolution for using the nK naming system:

For reference:

Digital Cinema Initiatives 4K = 4096x2160 (full 4K)

UHD TV 4K = 3840x2160 (16:9 TV aspect ratio)

Digital Cinema Initiatives 4K CinemaScope (2.39:1 aspect ratio) = 4096x1716

"UHD 4K CinemaScope" (2.35-2.4:1 AKA 21:9 aspect ratio) = 3840x1600 (more or less, this specific resolution does not exist in any known LCD panel or official standard, but it's easy enough to derive from the math).

To try to fit 3440x1440 into such a system, it's probably best to divide 3440 by 3840 (~.896) and multiply that by 4 for a result of ~3.58.

So, 3440x1440 is the equivalent of ~3.6K UHD CinemaScope. Which does not exist, so it's a bit ridiculous to try to fit it into the nK naming system.

While I get the marketing urge to make shorthand naming systems for resolutions, as far as I am concerned it's much easier to just spit out the actual height and width numbers so as to remove any potential for misunderstanding.

I could go about saying I'm using a 2.5K CinemaScope monitor, but no one would have a clue what I am on about.


And as for a 1920x1080 16:9 signal being sent to a 21:9 display, depending on the scalar and the display options, it could either be 1:1 centered windowboxed, 2560x1440 centered, upscaled, and pillarboxed (but aspect ratio correct) or 3440x1440 upscaled and stretched horizontally (worst solution).
Edited by zinfinion - 4/19/14 at 3:49am
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post #86 of 1057
True^^^. The correct resolution for this Monitor is supposed to be 3440x1451p. I Tried downsampling my 21:9 Dell 2560x1080p monitor to 3440x1440 and it looked weird, maybe due to the 28" screen size, but i doubt it. I had to scale it proportionally to get 3440x1451 (which has the correct 21:9 AR)

2560x1080p 21:9 looks fine
3440x1440p 21:9 looks weird
3440x1451p 21:9 looks fine
5120x2160p 21:9 looks fine
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post #87 of 1057
Quote:
Originally Posted by Yungbenny911 View Post

True^^^. The correct resolution for this Monitor is supposed to be 3440x1451p. I Tried downsampling my 21:9 Dell 2560x1080p monitor to 3440x1440 and it looked weird, maybe due to the 28" screen size, but i doubt it. I had to scale it proportionally to get 3440x1451 (which has the correct 21:9 AR)

2560x1080p 21:9 looks fine
3440x1440p 21:9 looks weird
3440x1451p 21:9 looks fine
5120x2160p 21:9 looks fine

There's no exact 21:9 ratio, heck even 21:9 isn't what either of the displays actually is:

21:9 = 2.33333333333
2560x1080 = 2.37037037037
3440x1440 = 2.38888888889

The term "21:9" is just a made up marketing gimmick for anything approximating a CinemaScope ratio, which itself has varied through the years from between 2.35:1 to 2.40:1.

The good thing is, any game that plays well at 2.37:1 plays just as well at 2.38:1. I don't doubt that we will see additional minor variations in the aspect ratio when larger resolutions come out.

So far, the manufacturers (and by that I mean LG, since they are the only 21:9 desktop panel maker as far as I am aware) seem to be re-purposing existing 1920x1080 and 2560x1440 production, just with a wider horizontal resolution on the mother glass substrate. Which is why I wouldn't be surprised if the next logical step is a 3840x1600 (2.4:1 ratio) panel. Either that or a 5120x2160 (back to 2.37:1).

Speaking of, were you able to get a resolution of 5120x2160 working? I haven't been able to get anything wider than 3840x1620 to work properly.
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post #88 of 1057
Seems like you can buy it from Amazon.com now:

LG 34UM95 @ Amazon

Just need it to release in EU or if someone already bought one from Amazon/Ebay then please give us a review biggrin.gif
post #89 of 1057
would anyone be able to calculate the actual width of the panel? Just want to see how much space this will take up on my desk, which happens to be 34" wide.
post #90 of 1057
Quote:
Originally Posted by vmahendra View Post

would anyone be able to calculate the actual width of the panel? Just want to see how much space this will take up on my desk, which happens to be 34" wide.

I took the 34" diagonal and 21:9 ratio and built those numbers into that c^2 = a^2 + b^2 stuff you remember from school, and typed my formula into wolframalpha.com and then did things with the results and got to 31.25" width and 13.4" height. You have to add the bevel of the monitor's panel to that 31.25" width number.
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