LG Display Unveils Industry's First 480Hz QHD Gaming OLED Display at CES 2024

[PapaTaipei]

Display Stream Compression. It’s the algorithm that allows chroma subsampling to reach higher resolution and refresh rates at the same bandwidth. It’s theoretically (and in practice really) indistinguishable visually from running without it. So yes, 1.4a does allow for WHD at 480Hz. At 4K? No. But there are no 4K 480Hz panels yet, so the point is moot.

Interesting, Im thinking no way this doesn't add some latency. The next question would be how much latency.

 

[Onasi]

Interesting, Im thinking no way this doesn't add some latency. The next question would be how much latency.

None. Well, technically it DOES add latency, but it’s so extremely low that it is absolutely impossible to notice. I am not sure if anyone even bothered to measure it or if it is possible to measure. We are talking a few thousandths of a millisecond here. So just as with the visual aspect - the drawback is essentially irrelevant.

 

[PapaTaipei]

None. Well, technically it DOES add latency, but it’s so extremely low that it is absolutely impossible to notice. I am not sure if anyone even bothered to measure it or if it is possible to measure. We are talking a few thousandths of a millisecond here. So just as with the visual aspect - the drawback is essentially irrelevant.

Interresting, I wonder up to which refresh rate can this push 4K on DP1.4a

 

[trsttte]

I am not sure if anyone even bothered to measure it or if it is possible to measure.

According to this rambus article it's less than 0.5us (that's micro seconds, 1/1000 of a milisecond). Measurable but very meaningless

VESA Display Stream Compression (DSC): The Complete Guide

Learn everything you need to know about VESA Display Stream Compression (DSC), simply explained in our blog. Start reading! Display technology has

www.rambus.com

Interresting, I wonder up to which refresh rate can this push 4K on DP1.4a

268Hz with 10bits colour, 325Hz at 8bits

 

[Onasi]

According to this rambus article it's less than 0.5us (that's micro seconds, 1/1000 of a milisecond). Measurable but very meaningless

Yep, so even less than I thought (athough in practice I suppose the difference between half a microsecond and a few microseconds is strictly academic), but I am sure some insane latency reduction cultist on the BlurBusters forums will still claim that this is a significant latency increase that totally messes with their "mouse feel". Met several of those in my day, lol.

 

[PapaTaipei]

Yep, so even less than I thought (athough in practice I suppose the difference between half a microsecond and a few microseconds is strictly academic), but I am sure some insane latency reduction cultist on the BlurBusters forums will still claim that this is a significant latency increase that totally messes with their "mouse feel". Met several of those in my day, lol.

Agreed. The guy in charge of blurbuster sound like a total nutcase.