[visionlist] LCD Monitors suitable with suitable temporal response

Ahmad, Jumana jumana.ahmad at kcl.ac.uk
Wed Mar 1 03:26:10 EST 2017


I found this paper very useful:

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4369646/pdf/fpsyg-06-00303.pdf

I ended up going with an Eizo gaming monitor.
Good luck,
Jumana
------------------------------------------
Jumana Ahmad
Post-Doctoral Research Worker in Cognitive Neuroscience
EU-AIMS Longitudinal European Autism Project (LEAP) & SynaG Study
Room M1.26.Department of Forensic and Neurodevelopmental Sciences (PO 23) | Institute of Psychiatry, Psychology & Neuroscience | King’s College London | 16 De Crespigny Park | London SE5 8AF

Phone: 0207 848 5359| Email: jumana.ahmad at kcl.ac.uk | Website: www.eu-aims.eu | Facebook: www.facebook.com/euaims
________________________________
From: visionlist <visionlist-bounces at visionscience.com> on behalf of Phillip Guan <philguan at berkeley.edu>
Sent: 01 March 2017 03:33:03
To: Nicholas Price
Cc: visionlist at visionscience.com
Subject: Re: [visionlist] LCD Monitors suitable with suitable temporal response

Nic you've summed up a lot of what we were afraid of. We are interested in presenting moving stimuli at high contrast (full white on black) and require a low persistence display that will introduce minimal motion artifacts as we present moving stimuli over the entire display area. Fortunately we don't really care about color or grayscale. One new technology that seemed promising compared to last time I looked into LCDs is nVidia's implementation of something called ultra low motion blur or ULMB for short (http://www.144hzmonitors.com/g-sync-ulmb/<https://emea01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.144hzmonitors.com%2Fg-sync-ulmb%2F&data=01%7C01%7Cjumana.ahmad%40kcl.ac.uk%7C4478946a82244908e9a408d46047df95%7C8370cf1416f34c16b83c724071654356%7C0&sdata=EANiyfdB1Fp%2FI%2BbTBDDt0xboXqip9OZVilgIJAmH%2F24%3D&reserved=0>). Do you have any experience with this tech?

-Phil

On Tue, Feb 28, 2017 at 3:59 PM, Nicholas Price <nicholas.price at monash.edu<mailto:nicholas.price at monash.edu>> wrote:
Hi Phillip,

What you can accept in terms of LCDs really depends on your requirements. If you just want a reliable 120 Hz update, then there are plenty of gaming-level LCD monitors that won't drop frames. That's the easy part of monitor characterisation though.

Apart from the Display++ and ViewPixx (which are both excellent, and no I don't have an interest in either company) we haven't found any non-CRTs that meet our relatively simple requirements of:
- Uniform luminance and contrast across the entire monitor surface, from a wide range of viewing angles
- Rapid onset and offset, such that you get good luminance and contrast control for single frame stimuli.

If you're just interested in reliable 120 Hz to present long-duration, non-moving stimuli, you have plenty of options. If you want static stimuli that are presented for 3+ frames, then you're also reasonably safe. If you want moving stimuli, as long as you don't care about contrast too much, then I think you're also safe. If you care about contrast, then make sure your stimuli are small and always presented in a small part of the monitor so you don't get viewing angle artefacts. At this stage, I don't care about colourful things, so you're on your own there!

Basically, whatever monitor you get, you'll still need to characterise its timing and luminance outputs (at a minimum). For my money, it's worth the investment in a Display++ or a ViewPixx.

nic

On 1 March 2017 at 09:55, Phillip Guan <philguan at berkeley.edu<mailto:philguan at berkeley.edu>> wrote:
Hello,

I'm wondering if there are alternatives to CRTs and the ViewPixx3D ($12,000 each) displays that can be used when fast response times are required for temporally varying stimuli. From this paper https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4369646/<https://emea01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fpmc%2Farticles%2FPMC4369646%2F&data=01%7C01%7Cjumana.ahmad%40kcl.ac.uk%7C4478946a82244908e9a408d46047df95%7C8370cf1416f34c16b83c724071654356%7C0&sdata=2A69FNxKn8Ka1MaYzKtPihSpsJeSnwcj5etpq7fyooM%3D&reserved=0> it seems that certain gaming monitors may be approaching the required quality level, are there any specific high framerate gaming panels that have come out in the last two years that approach parity with CRTs?

Thanks,

Phillip Guan

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