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HDR TV shall support all HDR formats.


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Discussion Starter #321

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Discussion Starter #322

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Discussion Starter #323
The current state of UHD HDR

A good start of the year for UHD HDR
https://blog.harmonicinc.com/good-start-year-uhd-hdr/

"On the technology side, the HDR battle has not ceased, despite both the Ultra HD Forum and the DVB standards committee selecting PQ10 [aka HDR10] and HLG back in 2016. Those HDR specifications are either without metadata (i.e., HLG) or with static metadata (i.e., PQ10). The industry has moved onto the deployment stage for both HDR specifications.

The ATSC 3.0 committee has now standardized A/3421 in addition to PQ10 and HLG, along with the dynamic metadata-based HDR specification Dolby Vision from Dolby and SL-HDR1 from Technicolor.

DVB has opened new commercial requirements to cover the existing specification of UHD-1 Phase 2, and the Ultra HD Forum has integrated those new HDR schemes in the Phase B Guidelines published this past April. In the enhanced version of the Ultra HD Forum Guidelines, new technologies appear, such as
• Next-generation HDR with dynamic metadata support (Dolby Vision and SL-HDR1)
• Object-based coding for next-generation audio
• High frame rate for 1080p100/120 sports content
• Content-aware encoding to bring the bitrate to more practical values for OTT deployments of UHD HDR."

 

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Discussion Starter #324

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Discussion Starter #325 (Edited)
Coexistence of different HDR profiles

What
"Dolby Vision? HDR10+? Dolby makes the case that both can coexist.
Giles Baker, Dolby Laboratories’ Senior Vice President of Consumer Entertainment, mused about a future in which both systems coexist. Granted, he believes Dolby provides a better end-to-end solution for HDR mastering and delivery, but that doesn’t mean he thinks HDR10+ doesn’t have its merits. It’s just … different.
There doesn’t need to be a winner and a loser here - we should all just enjoy better-looking content in whichever format directors and creators choose to use." 
https://www.techradar.com/news/dolby-vision-or-hdr10-dolby-wants-you-to-have-both

How
"Bill Mandel, industry relations VP for Samsung Research and program manager for HDR10+ for Samsung Electronics, said that despite the existence of a half dozen different HDR profiles, all will coexist through the use of Extended Display Information Data (EDID) technology that will let HDR10+ enabled players, televisions and even AV receivers communicate back and forth. That way HDR10+ info frame data can be delivered or withheld by the player if the display device or receiver are not compatible. Additionally, the devices might send a pop up asking the user which form of HDR is preferred when more than one is present.
That way all of the different systems can coexist without conflicts."
https://hdguru.com/hdr10-looks-for-greater-availability-in-content-hardware/

When
The coexistence of different HDR profiles would be likely to be officially endorsed by a 8K standard-setting body.

"One of the things that the consumer electronics industry is historically very bad at is introducing new standards to the public. At one point, HD had well over 30 different flavours in use worldwide and plenty of TV sets sold as HD Ready (if you can remember that far back) turned out to be no such thing. And, to be honest, the introduction of 4K has hardly been much better, while even HDR is not the cut and dried, 'this TV does HDR, this TV doesn't' case it should be either.
Speaking at the annual QLED & Advanced Display Summit in Hollywood, David Jung from Samsung's Picture Differentiation Lab delivered the following mea culpa.
“We feel we have to sufficiently explain to industry players in the ecosystem, and most importantly, the consumers, the value proposition of 8K. 4K distribution beat market expectations, but we feel now in retrospect we could have done better in setting standards and educating customers in such things as UHD and HDR.”
As a result, Samsung, which was a key member of the UHD Alliance, is in discussion with a variety of industry stakeholders to set up a body looking at the introduction of 8K."
http://www.redsharknews.com/production/item/5644-why-8k-won’t-repeat-the-same-mistakes-as-4k

"We feel we have to sufficiently explain to industry players in the ecosystem, and most importantly, the consumers, the value proposition of 8K," he said. "4K distribution beat market expectations, but we feel now in retrospect we could have done better in setting standards and educating customers in such things as UHD (ultra high definition) and HDR (high dynamic range)."
"Resolution is important, but today TV needs to offer added values besides just resolution," said Jung. "To do so, we believe we must cooperate with all stakeholders in the ecosystem, including content makers and distributors. We are keeping an open mind."
We need a different mindset from the past decade where TV manufacturers competed on shipment fiercely, to the detriment of our bottom lines," the official added. "We need to justify to consumers why they should consider 8K over a 4K TV as we can only do that when the industry as a whole come together to foster the ecosystem."
https://www.zdnet.com/article/samsung-in-dialogue-to-form-8k-standard-setting-body/

 

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“We feel we have to sufficiently explain to industry players in the ecosystem, and most importantly, the consumers, the value proposition of 8K.
They need to listen to us, not explain. In the UK, the cost and size of housing does NOT allow for large 8K screens. It's that simple.
 

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Discussion Starter #327
Every decision in favor of Universal HDR is welcome.
Once the coexistence of different HDR profiles will be officially endorsed by a 8K standard-setting body, it will get passed along to 4K UHD.
 

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Thanks Puddy77 !

Using a cheap VP9 Profile 2 YouTube HDR compliant media player like the Chromecast Ultra, a Vizio P TV can play VP9-HLG / VP9-PQ YouTube HDR contents:

VP9-PQ YouTube HDR file stored on YouTube cloud >> Internet >> VP9-PQ compliant Chromecast Ultra > CTA HDR10 uncompressed video >> HDMI >> HDR10 compliant Vizio TV

VP9-HLG YouTube HDR file stored on YouTube cloud >> Internet >> VP9-HLG compliant Chromecast Ultra > HLG uncompressed video >> HDMI >> HLG HDR compliant Vizio TV.

And then this Vizio TV becomes a universal HDR TV: it can play any existing operational HDR content.

Hey Dan,
According to a Vizio rep on here, the 2018 Vizio P Series now internally decodes VP9/2 for HDR playback from YouTube.


Hello bobkat007, i saw your post and tested YouTube on our P55-F1 and PQ65-F1 and was able to get HDR from both the on board app and casting. We tested this on The HDR Channel on Youtube and they seem to have content that is working. If there is a specific video you are having any issue with please post it and we can test it here.
 

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Discussion Starter #332
Hey Dan,
According to a Vizio rep on here, the 2018 Vizio P Series now internally decodes VP9/2 for HDR playback from YouTube.
Thanks puddy77!

Latest Multi-HDR TV table:

 

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Discussion Starter #333
Sony A9F / Z9F factory calibration

The uniformity Calibration is truly awesome news. However, it is a complete joke that companies now offer this as a "feature". This should have been standard for years.

"uniformity max elite". This sounds like something Samsung would pull. It's sad seeing so many people have to box up flagship tvs and play the return game due to banding and DSE. And it can't be good for profit/sales for these companies.


Some guy pushes you in the river, then he throws you a life jacket and wants you to thank him for saving your life.

But hey if they market and demo this correctly, people will buy it without realizing the above.
https://www.avsforum.com/forum/40-oled-technology-flat-panels-general/2993590-sony-master-series-a9f-oled-z9f-led-lcd-4k-hdr-tvs-debut-13.html#post56576238
http://forum.blu-ray.com/showthread.php?p=15355301#post15355301





Thanks!
 

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Discussion Starter #334
Mura correction

Apparently the factory calibration of the new Sony A9F & Z9F is a result of research efforts focused on display Mura correction:
https://www.google.fr/search?q=mura+defect+patent&oq=mura+defect+patent&aqs=chrome..69i57.7984j0j4&sourceid=chrome&ie=UTF-8
https://www.google.fr/search?q=mura+correction+patent&oq=mura+correction+patent&aqs=chrome..69i57j69i60l3.9599j0j4&sourceid=chrome&ie=UTF-8

"Despite the significant investment, the display industry still primarily relies on the use of human operators to perform the final test and inspection of displays. The operator performs visual inspections of each display for defects, and accepts or rejects the display based upon the operator's perceptions. Such inspection includes, for example, pixel-based defects and area-based defects. The quality of the resulting inspection is dependent on the individual operator which are subjective and prone to error."
https://patents.google.com/patent/US8049695
"The use of automatic Mura correction device can help the stable production by evolving its quality and improving yield."
http://olednet.com/en/cybernet-develops-ic-mura-correction-oled-display/


An OLED Mura correction:
http://olednet.com/en/cybernet-develops-ic-mura-correction-oled-display/






"OLED panel companies can easily apply the advanced function of Mura correction, and additionally, the use of automatic Mura correction device together which is FPiS™ series provided by Cybernet, can help the stable production by evolving its quality and improving yield. We thus are expecting that this will accelerate the product release in the market.”
The driver IC for OLED display including the newly developed function of Mura correction is scheduled for starting to distribute it from June, 2017 to the market."


A LCD Mura correction:
http://www.teksel.si/sites/2/files/files/Profesionalni zaslon/PN-V551/brošura PN-V551.pdf
https://patents.google.com/patent/US8049695



"A 3D ‘pixel to pixel’ Mura correction is performed at factory on production line using Sharp’s ‘UCCT’ software (Uniform Color Calibration Technology). Using the very accurate L*ab methodology, all chromatic, luminance and hue values are calculated to remove any Mura impurity from the entire display screen area achieving a consistent uniformity of the white point and of all colors across each display from screen edge to center, and between all displays across the entire video wall
This advanced Mura correction process is eventually saved onto a unique combination of separate Look Up Tables (LUT) on board every PN-V551 display, (i.e. known as “hardware calibration”), permanently saving and applying all correction data to obtain a consistent and uniform color rendering across each display from screen edge to center, and between all displays across the entire video wall, regardless to any input signal the display is fed from."
 

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Discussion Starter #336
Thanks puddy77!





The HDR10+ info is currently removed on the Vizio website.
https://support.vizio.com/s/article/PQ65-F1-Model-Information-1?language=en_US

If this information is not an error, then the Vizio PQ will be the 1st universal HDR TV compatible with all currently operational HDR formats (namely HDR10, Dolby Vision, HEVC HLG HDR, VP9-HLG YouTube HDR, VP9-PQ [aka VP9-HDR10] YouTube HDR and HDR10+).


Evidence in favor of this info:

. Vizio TVs are powered by Sigma Designs (now V-Silicon) SoC.
https://www.sigmadesigns.com/news/sigma-designs-announces-partnership-with-vizio-to-incorporate-connected-tv-chipset-in-innovative-new-cinemawider-hdtvs/

. Sigma Designs’ universal HDR chipsets STV7803 and STV7804 are compatible with HDR10+.
https://www.sigmadesigns.com/news/sigma-designs-offer-hdr10-stv78034-uhd-hdr-chipsets/

. Post of Matt McRae (then Vizio CTO) in April 2017:
"VIZIO is not announcing any future support for HLG or HDR10+. Why?
First, we like to get a lot farther down the path of analysis and content souring before making such an announcement. We want to make sure we can deliver and that it is actually a step up for our consumers.
Second, HLG is mostly used in Europe where we don't sell displays but we are working closely with some content sources here in US that may launch in the future to understand what future demand would look like...
Third, for HDR10+ the standard is not yet finalized so it is a bit premature. Remember, HDR10+ is just a marketing name for the Dynamic HDR10 functionality. But there are several different versions being proposed into the spec (most make sense, one is a bit of a outlier). We want that to settle down before we market something that doesn't exist in the market or reality.
Interesting part is HDR10+ does NOT require HDMI 2.1 [chipset (?)] and our hardware is capable of dynamic meta data mapping because we supported Dolby Vision from day 1."
https://www.avsforum.com/forum/166-lcd-flat-panel-displays/2378658-official-vizio-2016-2017-p-series-owners-only-thread-uhd-hdr-dv-no-price-talk-please-1482.html#post52506289
 

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Discussion Starter #337

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Discussion Starter #338
Xbox One S/X & Dolby Vision

"Quickly following our news-packed Gamescom Inside Xbox show, we have even more news for our Xbox Insiders as Dolby Vision™ HDR releases today on Xbox! Starting with the Alpha Skip Ahead and Alpha rings, Xbox Insiders with a compatible TV can enjoy Dolby Vision streaming content on Netflix on Xbox One S and Xbox One X."
https://news.xbox.com/en-us/2018/08/30/dolby-vision-for-xbox-one-1810-system-update/

 

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Discussion Starter #339
Oppo universal players

Oppo people is exploring the feasibility of bringing HDR10+ to their UHD Blu-ray players compatible with Dolby Vision.



Thanks Ray!
 
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