News for hackers. Stuff that matters.

A comment on The next best thing to OLED is getting cheaper. Parent comment

Re:The next best thing to OLED is getting cheaper by Teever on Monday February 21, 2022 @05:15PM (#30421378)
> I don't want 4K: 5K has over 77% more logical area.

Can you elaborate?

5/4 = 1.25

[ Parent | on HN ]
Re:The next best thing to OLED is getting cheaper by LASR on Monday February 21, 2022 @05:29PM (#30421556)
(5120 * 2880) / (3840 * 2160) = 1.77

Since they are both the same aspect ratio (16:9) you can also take the ratio of one linear dimension and square it to get the area ratio.

So:

(5120/3840)^2 = (2880/2160)^2 = 1.777

[ Parent | on HN ]
Re:The next best thing to OLED is getting cheaper by MegaButts on Monday February 21, 2022 @05:22PM (#30421465)
https://en.wikipedia.org/wiki/5K_resolution

4k is 4096 x 2160, 5k is 5120 x 2880

There's also a really helpful diagram on that page

[ Parent | on HN ]
Re:The next best thing to OLED is getting cheaper by another_kel on Monday February 21, 2022 @05:43PM (#30421710)
It's cinematic 4k. 4k monitor is 3840 x 2160.
[ Parent | on HN ]
Re:The next best thing to OLED is getting cheaper by nicoburns on Monday February 21, 2022 @05:24PM (#30421504)
5:4 is only one dimension, but 5k screens have greater resolution in both dimensions. I make it roughly 66% more area:

(5120 × 2880) / (4096 × 2160) = 1.6666

[ Parent | on HN ]
Re:The next best thing to OLED is getting cheaper by Inityx on Monday February 21, 2022 @05:27PM (#30421532)
It comes out to 77% if you use the SMPTE UHDTV standard of 4k, which is (2 * 1920) × (2 * 1080) = 3840 × 2160
[ Parent | on HN ]
Re:The next best thing to OLED is getting cheaper by nicoburns on Monday February 21, 2022 @05:29PM (#30421560)
Ah. I just checked, and that is indeed the resolution of the 4k monitor I'm currently using. So I would guess that standard is pretty common!
[ Parent | on HN ]
Re:The next best thing to OLED is getting cheaper by seanmcdirmid on Monday February 21, 2022 @05:43PM (#30421707)
That’s also why 5K monitors are more than 2X the price of 4K ones at similar sizes. I have a 4K with those dimensions that I bought for $400, an LG 5K would cost at least $1200.
[ Parent | on HN ]
Re:The next best thing to OLED is getting cheaper by nicoburns on Monday February 21, 2022 @06:05PM (#30421930)
I think the price is more about where on the adoption curve those technologies are. 4k is pretty mainstream these days, older tech and produced in high volumes: ergo cheaper. 5k is still pretty new, mainly constrained to higher end products, and sales volumes are lower: ergo more expensive.
[ Parent | on HN ]
Re:The next best thing to OLED is getting cheaper by seanmcdirmid on Monday February 21, 2022 @07:01PM (#30422403)
5K 27" monitors predate 4K 28" ones, but the supply was basically monopolized by Apple from day one. I can get an affordable 5K monitor, but unfortunately I have to get an iMac CPU unit to go with it.
[ Parent | on HN ]
Re:The next best thing to OLED is getting cheaper by rootusrootus on Monday February 21, 2022 @08:34PM (#30423059)
And they took away target mode so your only compute option is the processor that came with it. That still annoys me, I’d like to drive my perfectly great 5K display with an M1 Mac mini.
[ Parent | on HN ]