LG 32UD99 4k@60+HDR over USB-C

The display will need local dimming if it's to be advertised as HDR, without it it will only be able to hit about 1:1300 contrast ratio which is not even close to HDR, without local dimming.

The display having a peak brightness of 550 sounds like it's using some sort of local dimming, if it isn't then the black levels at that brightness would be really awful and it'd be a complete waste as at that brightness constantly it'd damage your eyes.
 
Nexus18 said:
This:



And as taken form that tftcentral article I linked, Badass really started the paragraph of best:



The LG display is nowhere close to being a "true" HDR monitor, it is essentially just a basic monitor with the above you have listed to get the "HDR" badge/selling point. IQ etc. will be a bit better than a standard monitor but it is not going to be anything like a "true" HDR monitor. To fully achieve the benefits of HDR, you need some kind of local dimming, which as far as we know... the LG does not have.

The upcoming asus 27" 4K 144HZ monitor is the only monitor so far to have the following to make it close to being a proper HDR monitor:

- full array local dimming zones and 384 of this lovely tech. That is around the same as what some of the lovely big expensive TVs have and they are 50+"

I have seen numerous fake "HDR" TVs and they look barely any better than a normal TV.
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Not entirely convinced FALD and monitors are going to be a match made in heaven, I really hope they are though. Two reasons, the extra input latency that will almost certainly occur, and secondly you are much closer to a monitor than a TV and so are more likely to see the discrete sections. You sure as hell can see them on my TX-58DX902B with its 512, admittedly it is like three times the size but I suspect this is going to be a bit of an issue, especially on IPS screens. Best short term hope is the 2018 Samsung monitors which will likely adopt 2017 TV tech (QLED) which is looking promising. Clearly OLED is the long term hope.
 
Greebo said:
I think the frustration is that we have UHD Alliance Premium logo TVs available for under a grand but PC uses are being fobbed off with just HDR ready monitors and charged over a grand.
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The issues though are the specs that are ok for a TV wouldn’t fly for a monitor (otherwise you would get a TV), notably response times (looking at minimum of 26ms) and the size of the market (TVs everyone, Monitors select few).

Not saying it isn't egregious that a 55" UHD TV with its own damn computer built in can be had for less than a 4k 'HDR' monitor. Early adopter tax.
 
jeff83nz said:
The issues though are the specs that are ok for a TV wouldn’t fly for a monitor (otherwise you would get a TV), notably response times (looking at minimum of 26ms) and the size of the market (TVs everyone, Monitors select few).

Not saying it isn't egregious that a 55" UHD TV with its own damn computer built in can be had for less than a 4k 'HDR' monitor. Early adopter tax.
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I am not so sure that is the case. Certainly the only issue seems to be lag and that is mainly from the TV's having bloatware and freeview encoders on. The ones with bypass game settings quite often have better response times than the high end monitors we are been charged over a grand for.

SO yearh i feel we are been hard done too. The TV market has 4k, HDR, 10 bit, local dimming, faster response times and a digital tuner thrown in for less money than we ge a pseudo HDR compatible screen.
 
Some news on upcoming HDR panels:

http://www.tftcentral.co.uk/news_archive/37.htm#auo_samsung_roadmaps

We know that AU Optronics are investing in research in to HDR supporting backlights as a priority. These start with global dimming options with only 1 dimming area, and are of course the most cost effective. Edge Backlight Unit dimming with 8 or 16 areas are also under development, while the full flat direct backlight unit with >300 dimming areas is the best option for true HDR. Have a read of our HDR article for more information about this. AU Optronics are also establishing the feasibility of offering a full array (>300 areas) backlight for curved screens but it's not yet in development.

Panel wise, AUO will offer various HDR display options. The edge backlight options will come in flat 32" (2560 x 1440) and curved 35" (3440 x 1440) sizes and are based on VA panel technology. They will offer 8 backlight areas and a colour space of DCIP3 >=90%. 400 typical and 600 cd/m2 peak brightness is provided and these panels are forecast to go in to production in Q3 2017.

AUO are also now working on a 32" HDR IPS-type AHVA panel, with similar features as the asus 27" 4k 384 full array local dimming. A 3840 x 2160 ultra HD resolution, 384-zone backlight, HDR support, DCIP3>=95% and 400 - 800 cd/m2 brightness. This 32" version is expected to go in to production in Q4 2017 so is some way behind the 27" model. No confirmation on refresh rate of the 32" panel, although we don't believe it will be high refresh rate sadly as it is not listed in their gaming panels, whereas the 27" version is.

Samsung are investing in a couple of unique and interesting options as detailed below. Part numbers are not known at this stage:

  • 49" mega-wide panel - this panel will offer a massive 49" size, in a 32:9 aspect ratio which Samsung are referring to as a "Grand Circle" format. We knew about the plans to produce a panel like this back in January 2016, but more details are starting to emerge now which is good news. These are the current specs but could have course change between now and mass production. The resolution will be 3840 x 1080 (referred to as DFHD = double full HD). It will be a VA technology panel with a 1800R curvature and a 3-side frameless design. The panel will offer a high 5000:1 static contrast ratio which is pushing the CR beyond current Samsung VA panels in fact. Perhaps most interesting is that the panel will apparently support a 144Hz refresh rate, along with options for AMD FreeSync and NVIDIA G-sync. The panel is due to go in to mass production around September 2017
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Personally I will avoid any type of edge lit local dimming monitor as it creates issues with certain scenes like the following:

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it is my understanding that to avoid the halo effect that comes with local dimming on LED, our 32UD99 will have global dimming

as LED monitors are not full array (as this would be far far too expensive), global dimming is the only way forward without that halo effect currently
 
Daniel - LG said:
it is my understanding that to avoid the halo effect that comes with local dimming on LED, our 32UD99 will have global dimming

as LED monitors are not full array (as this would be far far too expensive), global dimming is the only way forward without that halo effect currently

don't get me wrong, global dimming isn't ideal either in my view, but until OLED monitor comes out (or someone decides to do full array LED) this looks like the only viable option, as I know I wouldn't want that halo effect
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This is the worst of the worst, basically if you have a light source (say for example a star) and a dark (space) you either have a very dull star or a very bright space. It is totally binary, at least local dimming can isolate it, especially on the low settings. The future Asus one is full FALD no? Although imagine it will arrive at the end of the year.

I guess with a maximum brightness of 350 nits it is potentially less of an issue.

Will be interested to see reviews from reputatable reviewers when they hit.
 
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