Interesante artículo por alguien que sabe bastante sobre esto (Steve Withers):
https://www.avforums.com/articles/has-o ... peak.16953Algunas citas interesantes (no apedreéis al mensajero, si tenéis quejas, hacerselo llegar a él, no a mi):
Of course, that isn’t necessarily a major limitation because much of today’s HDR content is graded at 1,000nits (or less), and content that is graded higher can be tone mapped to match the capabilities of the display. In addition, the pixel precise nature of OLED allows it to deliver tiny specular highlights in a way that local dimming can never fully achieve.
Colours are an area where it would seem that OLED has reached its limit as well, although to be fair, achieving 100% of DCI-P3 is sufficient at the moment because no content is created using Rec.2020. However, that will change over time and manufacturers will want to expand the colour space of their displays to get closer to the Rec.2020 standard. The introduction of Quantum Dot OLED might also help widen the colour gamut, but as it stands OLED doesn’t appear able to cover more than DCI-P3.
AVForums members have conducted numerous polls on the subject of screen burn over the last few years and the results make for interesting reading. Looking at an average of polls conducted over the last two years reveals that 15% of 2015 OLED owners have reported screen burn, but that figure suddenly jumps to 30% for 2016 models. Since then the various safety features that manufacturers have added appear to be working because only 8% of 2017 owners reported screen burn, and that's down to just 4% among 2018 models.
Up until now, LG has largely had the OLED manufacturing market to itself, and thanks to significant investment in the technology, LG Display has enjoyed a virtual monopoly. However, things are definitely about to change, with increased competition from Chinese manufacturers like BOE, the introduction of Quantum Dot OLED, and a new inkjet printing process that will significantly reduce the cost of making OLED panels.
There is however one more display technology that offers the possibility of the best of all worlds – Micro LED. This uses a panel where each pixel is composed of microscopic red, green and blue LEDs, and while at present it's neither easy nor cost-effective to manufacture, it has remarkable potential
The fact that every pixel is self-emitting means you can get perfect blacks, fantastic shadow detail, incredible contrast ratios and very wide viewing angles, just like an OLED. However the use of LEDs also means there's no danger of screen burn, and this technology has the potential of wider colour gamuts, and increased brightness on both peak highlight and full field measurements. Theoretically, this approach could result in displays capable of reaching Rec.2020 and hitting 10,000nits of peak brightness.
Estoy muy de acuerdo con el artículo y suele ser muy certero en sus predicciones. Larga vida al OLED...hast que llegue MicroLED y lo desbanque
Oh, y merece mucho la pena leer también los comentarios, con aportaciones del propio Steve y otros:
The Sony professional OLED monitor, which used a Panasonic panel and is no longer available, used RGB on a 32-inch screen size, but it still only delivered 100% of DCI-P3 and 1,000nits. It also had a shorter lifespan compared to consumer OLED TVs, which is one of the reasons why the professionals are moving to a new Dual LCD monitor for mastering work. The latter will also be brighter, more consistent and won't suffer from image retention or screen burn.
No. Burn in is a non issue. Vertical Banding is number 1 reason for returns. Owners threads.
The vertical banding is a limitation of the technology, and relates to how power is distributed across the panel to energise the pixels. However, while it is still there, it's rarely visible with normal viewing material and has got much better over the last five years.
I think image retention and burn-in is the big unknown when it comes to OLED. There's no doubt that early models were more susceptible, but new features have been introduced that seem to mitigate the risk. I've owned three OLEDs (B7, C8 and C9) and I haven't any problems with image retention or screen burn so far. However with panels being driven harder and harder, I wonder whether this might become more of an issue as the TVs age.
Jokerr said:
Steve, I am curious to know if you only watch streaming content such as Netflix. Is any of the HDR content delivered higher then 1000 nits via streaming. If not, then for people only viewing via streaming [Netflix HDR, Amazon HDR10, iTUNES HDR, Disney+ HDR] there is no benefit for 1000 nits.
Most of them are capped around 1,000 nits including UHDs.
WB / Sony UHDs usually are 4000-10000 nits.
Disney are the worst of the lot. Most of their releases are low APL.
“
There was also some rumour that LG graded panels and used the better ones for the E series.
I'm not sure how true that is.”
If you listen to the latest AVFORUMS Podcast - Phil mentions this is not true. He asked LG about it at CES.
![[carcajad]](/images/smilies/nuevos/risa_ani2.gif "carcajada")
.![[sonrisa]](/images/smilies/nuevos/risa_ani1.gif "sonrisa")
![[beer]](/images/smilies/nuevos2/brindando.gif "brindis")