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[Anandtech] LG 29EA93 Ultrawide 21:9 Display: Missing its Target - Page 2

post #11 of 53
IMHO it is a great concept.

I'd love to see this aspect ratio mature.
   
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post #12 of 53
Damn, I really want a 1440p monitor, but all of them have had horrendous input lag, and this is some of the worst lag I have ever seen.
post #13 of 53
Quote:
Originally Posted by SirWaWa View Post

are circles distorted with this resolution? are they stretched or maintained as originally is?

Depends on the game. Most games that are Hor+ will do fine. HUD elements will either stay where they would be in 16:9, move to the edges, or stretch.

Vert-, anamorphic, and stretch games will be odd to say the least. And some games will refuse to run wider than 16:9 or 4:3, which will result in pillarboxing.

It's one of those things where it's great when it works as desired and annoying when it doesn't. I'm still holding out on TFT Central and prad.de to review the Dell before I even consider looking at it.

As well, you can get the exact same aspect ratio on a 27" 2560x1440 by making a custom resolution of 2560x1080 and setting the game to that. It will be letterboxed of course, so possibly not as immersive as having the screen filled bezel to bezel. It also wont be physically as wide as the 29".

So tradeoffs all around.
Quote:
Originally Posted by Art Vanelay View Post

Damn, I really want a 1440p monitor, but all of them have had horrendous input lag, and this is some of the worst lag I have ever seen.

Have you considered the HP ZR2740w? It is the fastest 27" 2560x1440 reviewed by TFT Central at 3.6ms since it has no scaler.

http://www.tftcentral.co.uk/reviews/hp_zr2740w_v2.htm
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post #14 of 53
Quote:
Originally Posted by zinfinion View Post

Have you considered the HP ZR2740w? It is the fastest 27" 2560x1440 reviewed by TFT Central at 3.6ms since it has no scaler.
http://www.tftcentral.co.uk/reviews/hp_zr2740w_v2.htm
PRAD measured 24ms of latency on that monitor.
post #15 of 53
I think TFT had 15-20ms as well when they were using their old stop watch system. They are "supposedly" using a more accurate method of finding input lag now.
 
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post #16 of 53
Quote:
Originally Posted by Art Vanelay View Post

PRAD measured 24ms of latency on that monitor.

The question becomes are we talking signal delay, response time, or both combined?

From prad's ZR2740w article auto-translated:
We determine the latency as the sum of the signal delay time, and the half of the mean image change time. When we measure ZR2740w a short signal delay of 4.8 milliseconds. Because of the slow build up to the desired image brightness on average pass before another 12.2 milliseconds, the average total latency falls with total of 17.0 milliseconds longer.

From prad's U2713HM article auto-translated:
The latency is an important value for players, we calculate the sum of the signal delay time and the average half-time frame rates. U2713HM when we measure a longer signal delay of 15.5 milliseconds, probably buffered by the built-in scaler that data.
Until the desired brightness pass another 7.1 milliseconds, it is the overall average latency is about 22.6 milliseconds. For friends of particularly fast first person shooters is probably a tad too much, all other users will not notice this, however.

So which is more related to input lag? The signal delay, or the response time of the pixels? Or is it both combined?
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post #17 of 53
Quote:
Originally Posted by zinfinion View Post

The question becomes are we talking signal delay, response time, or both combined?
From prad's ZR2740w article auto-translated:
We determine the latency as the sum of the signal delay time, and the half of the mean image change time. When we measure ZR2740w a short signal delay of 4.8 milliseconds. Because of the slow build up to the desired image brightness on average pass before another 12.2 milliseconds, the average total latency falls with total of 17.0 milliseconds longer.
From prad's U2713HM article auto-translated:
The latency is an important value for players, we calculate the sum of the signal delay time and the average half-time frame rates. U2713HM when we measure a longer signal delay of 15.5 milliseconds, probably buffered by the built-in scaler that data.
Until the desired brightness pass another 7.1 milliseconds, it is the overall average latency is about 22.6 milliseconds. For friends of particularly fast first person shooters is probably a tad too much, all other users will not notice this, however.
So which is more related to input lag? The signal delay, or the response time of the pixels? Or is it both combined?
There was also this section on response time. I am not an expert at all, so I just took the one that sounded right.
Quote:
Response time and acceleration

The response time is calculated separately for the black and white change and the best gray-to-gray change. In addition, we call the average for our 15 measuring points.

The data estimates the response time of 12 milliseconds. We measure the fastest gray change of 17.9 milliseconds, and black and white with 15.5 milliseconds. The average overall response time (round trip) for our 15 measured values ​​of 24.4 milliseconds or longer.
post #18 of 53
Quote:
Originally Posted by Art Vanelay View Post

There was also this section on response time. I am not an expert at all, so I just took the one that sounded right.

I'm no expert either, but according to TFT Central's article on it, it sounds as though the signal delay is solely responsible for input lag, while pixel response time is responsible for ghosting and blur.

http://www.tftcentral.co.uk/articles/input_lag.htm

That said, I question how a shorter signal delay helps if the pixels can't be arsed to respond quickly. rolleyes.gif

In my example, the HP should have less input lag but more ghosting/blur than the Dell.
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post #19 of 53
Quote:
Originally Posted by zinfinion View Post

That said, I question how a shorter signal delay helps if the pixels can't be arsed to respond quickly. rolleyes.gif
IPS can change as quickly as 6ms, which is fine for 60Hz.
post #20 of 53
Quote:
Originally Posted by perfectblade View Post

and the march to more and more impractical monitor aspect ratios just to match tv aspect ratios continues

except this isn't impractical at all

16:10 and even 16:9 aren't truly wide enough for side by side documents, this would be pretty much perfect for that

for gaming, this means less need for multi monitor setups as its wider aspect ratio is almost perfect for a 120 degree FOV if we use the 90 degree @ 4:3 aspect as a standard.

that being said, given that this is just another slow IPS panel, it really would only shine for media playback

but I would really love to see this aspect ratio on something like OLED when the time comes
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