LG Develops ‘Nano IPS’ LCD, Unveils 32“ 4K Display with DCI-P3, HDR600, TB3 | Hacker News Reader

LG Develops ‘Nano IPS’ LCD, Unveils 32“ 4K Display with DCI-P3, HDR600, TB3

anandtech.com

41 pointsjseliger18 comments

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For the unintiated:

- TB3 is Thunderbolt 3

- DCI-P3 is an RGB colorspace

- HDR600 refers to luminosity (nits) and other VESA specifications

TBH I'm not sure what nits are or why to get excited about them.

I was kind of hoping all the initialism bingo would boil down to a high refresh rate 4k IPS display panel!

[edit] removed "600 nits" because it was incorrect

Nits = how bright can bright get? If you want your sunny shots to be searingly so but your dark shots to still be clear the ideal is to have high dynamic range: really bright brights and really subtly dark blacks. If you don't have the former, you compress the likely dynamic range you can display under daylight conditions. So a high nit display (with HDR) can "wow" both with total brightness capability as well as broad dynamic range.

Nits are a level of brightness for a given level of surface area. If you like a bright monitor you can use the variable as a benchmark in the same way you gauge resolution in pixels per inch. On a sunny day (compare it to using a smartphone outside) brightness can be important.

I'm not super familiar with 'low' or 'high' brightness, but as far as I know 600 is very good. The iPhone 7 for example has about 700 nits max, for outdoor use. So it seems as if this is close to an outdoor-level monitor, which should perform well under any indoor condition, especially with some light shades if necessary.

> HDR600 refers to luminosity; 600 "nits"

No. The 600 nits (cd/m^2) brightness is just one of several requirements in the VESA DisplayHDR-600 specification: https://www.anandtech.com/show/12144/vesa-announces-displayh...

HDR600 doesn’t require 600nits actually it requires 320, the flash brightness is a useless metric the problem with displays that can’t provide sufficient brightness is continuous clipping of highlights not that they can’t momentarily blind you.

Pretty much anything other than OLED or Sony’s full array dimming won’t have proper HDR functionality especially after calibration which tends to reduce the peak and average brightness of the display considerably.

VESA has a chance to step in and do something proper they chose the have the shittiest requirements possible.

The only one currently in the PC monitor scene which is serious about HDR is NVIDIAz

Gsync HDR requires a 1000 nits brightness and full array dimming with 380 zones or more for LCD panels.

It’s good to see lg and sumsung (qled) trying to squeeze the maximum of what can be done with LCD panels. Until burn-in is still an issue with OLED panels im gonna stick with lcd/ips ones.

I thought the "burn in" on OLED screens can be reset?

It’s actual degradation of the light emitters which age with a function of on time. The only way to fix it is to drop the intensity globally to the level of the weakest emitter, assuming they all degrade at a known rate.

Dell announced a 30" OLED display in 2016; then it re-announced it (for lack of a better term) in April 2017: https://www.anandtech.com/show/11272/dells-ultrasharp-30inch... and since then it seems that nothing public has been said. I wonder what happened in there: two years of vaporware is unfortunate, although I have zero technical expertise in this domain, so there are likely good reasons behind the scenes, even if I don't know what they are.

OLED TVs are common, but something keeps them from being commonly used as computer displays.

Yes, and what is that exactly? I need OLED displays.

It's the burn-in that keeps them from being acceptable computer displays. Computers are more likely to have static parts of the display that initiate uneven burn-in.

Burn in is not an issue in any practical sense now. Sure you can buy a phone that uses lower quality components and experience severe burn in, but then why are you judging the displayed technology by sampling a low quality device?

The situation in the phone market is much better than full size monitor market. Without the market size and scale to support, its hard for LED monitor to improve the yield and sell in more competitive price.

It's nice to see displays with a wider gamut coming to market, but they're only useful when you can get more than 8 bits per pixel. The monitor itself seems capable of 10 bits per pixel, but getting that end-to-end in Windows is problematic at the moment.

Where are the OLED computer displays? I no longer want any LED anything after seeing OLED in action on my TV and smartphone..

One of the big hurdles with OLED is avoiding “burn in” and image retention. For TVs it’s not so much of an issue (although even with my 2017 LG OLED I’ve experienced temporary image retention) as the picture changes often, but with a computer display that often shows static images (think menu bars), it’ll be really obvious when you go to watch a movie or play a game.

Cost. OLED is still a few times more expensive then LED LCD.

another fake HDR display, will blacks go silver in corners like in most IPS panels?

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