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We’d like to build a large tiled display which is compatible with our existing active stereo glasses. These glasses sync off an RF emitter, which would be connected to a Quadro RTX 6000, which would be the GPU type used to drive these displays. The stereoscopy operates at 120Hz.

However, we’re running into problems finding a >= 1440p monitor that is in stock (and in bulk), and that also works well with active stereo. In the past, we’ve used PG278QR and S2716DG monitors, but as they’re older monitors, we’re not able to get large quantities of those.

We’ve tested LG 27GP950, PG279QM, and Asus MG278 with Nvidia’s nvstereoutilityogl.exe, and the ghost of one eye’s image is often visible from the other; this is present to some degree on the older monitors, but only if you really look for it.

Does anyone have any recommendations for monitors that are readily-available, and that would fit our use case? Thin bezel would also be a plus. We’re thinking to try Asus XG27AQM, but would appreciate any feedback.

ccm3298 wrote: ↑

04 Apr 2023, 17:13

Hello,

I am moving this post to the Blur Busters Laboratory (Area 51: Display Science, Research and Engineering) section instead.

You reached the consumer/media portion of Blur Busters -- why not reach out to the consulting services portion of Blur Busters?

___

P.S. Some information about your problem is.

1. Not all pixels refresh at the same time, https://www.blurbusters.com/scanout
You can't open/close shutters of glasses while an LCD is still in mid-refresh;

2. You need a strobe backlight mode (ULMB, ELMB, DyAc, VRB) to keep the ghosting down with 3D shutter glasses for stereoscopic operations;

3. You need polarization of your shutter glasses compatible with the polarization of the LCD.

4. Having access to a cheap high speed camera can help you with debugging, e.g. pointing a Samsung Galaxy S22 960fps camera at www.testufo.com/scanout to find out if a panel can refresh fast enough;

One of the best desktop displays for 3D active shutter operations is to use a 240Hz gaming monitors with 120Hz+QFT, because you can refresh the panel in 1/240sec quicker, and get LCD GtG to complete quicker between refresh cycles.

I suggest you focus on 240Hz displays being run at 120Hz, use a custom resolution mode (e.g. ToastyX) to configure a fast-refreshing 120Hz mode ("Quick Frame Transport") which is an undocumented feature of monitors, where the first-to-last pixel of a monitor refreshes in only 1/240sec apart (at 120Hz), rather than the usual 1/120sec apart. And then also add black frame insertion features (whether LCD strobe backlight or OLED BFI) as a guard-delay for the slowness of the LCD GtG of shutter glasses (it takes time for a shutter to fade-open or fade-closed, which can create problems).

See https://www.blurbusters.com/xg2431

Especially follow it "Quick Frame Transport" section; you want a monitor that is strobe crosstalk free when testing a strobe backlight mode, and that kind of limits you to TN panels or Fast-IPS panels.

If you are unfamiliar with strobe backlight, NVIDIA invented it for "LightBoost" for their 3D shutter glasses; but it was also found to be a great motion blur reduction mode too (for non-3D operation too). For best shutter glasses results, you need a monitor that can finish LCD GtG before the next refresh cycle, so sometimes you have to overpurchase refresh rate, in order to get excellent low refresh rate performance for shutter glasses;

We specialize in giving advice here -- many have hired us for advisory consulting services in this area; If you would like to hire Blur Busters consulting services in correct selection of displays compatible with shutter glasses, check out Blur Busters Services. Send an email to squad [at] blurbusters.com and I will send you a PDF pitch about some of the services we do in stereoscopic optimization.