News: displays and their technologies

[DDH]

Samsung OLED TV based on quantum dots could ship in 2022, says report
It could be the next great TV tech to challenge the supremacy of LG's OLED. And it might be available sooner than you think.
https://www.cnet.com/news/samsung-ol...2-says-report/

[Lee A Stewart]

Sony Expands Its Bravia 4K HDR Professional Display Line-up with 100-inch and 32-inch Options for Business Applications

https://displaydaily.com/article/pre...s-applications

[Auditor55]

Originally Posted by DDH

It seems to me it was the same talk when 4K started.
Fortunately, things have evolued since.

Well, tell me where and when all the 8K content is coming? 4K is stupid because the eyes can hardly distinguish between 4K and 2K. If you don't believe me, watch something 4K without the enhancements of HDR and tell me does 4K alone makes a difference.

Anyway, my point for calling 8K stupid is primarily do to a lack of content. The vast majority HD content is still 1080p, there so much content, like movies, that still haven't been released in 4K, not one major network broadcasts in 4K, they're still on 1080i and 720p, not even 1080p, now you're going throw 8K at me? Yes, 8k is stupid.

[Lee A Stewart]

Originally Posted by Auditor55

Well, tell me where and when all the 8K content is coming? 4K is stupid because the eyes can hardly distinguish between 4K and 2K. If you don't believe me, watch something 4K without the enhancements of HDR and tell me does 4K alone makes a difference.

Anyway, my point for calling 8K stupid is primarily do to a lack of content. The vast majority HD content is still 1080p, there so much content, like movies, that still haven't been released in 4K, not one major network broadcasts in 4K, they're still on 1080i and 720p, not even 1080p, now you're going throw 8K at me? Yes, 8k is stupid.

ATSC 1.0 is restricted to 1080i/720P for HD. ATSC 3.0 can handle 1080P and 4K but it is still in it's "testing" stage.

Technology doesn't stop. From SD to HD to UHD, it marches on. 8K will be the next step up and will differ than all others due to having very little existing content that can benefit from 8K. Which means the lion's share of 8K content will be new: Sports, Documentaries, TV shows and the occasional 65mm movie production.

Want a 55" TV? Your only choices are which 4K TV will you buy. No HDTVs in that size. 5 to 7 years from now it will be the same, only then it will be which 8K TV do you buy? Economies of scale is what motivates display OEMS.

[DDH]

Originally Posted by Auditor55

Well, tell me where and when all the 8K content is coming? 4K is stupid because the eyes can hardly distinguish between 4K and 2K. If you don't believe me, watch something 4K without the enhancements of HDR and tell me does 4K alone makes a difference.

Anyway, my point for calling 8K stupid is primarily do to a lack of content. The vast majority HD content is still 1080p, there so much content, like movies, that still haven't been released in 4K, not one major network broadcasts in 4K, they're still on 1080i and 720p, not even 1080p, now you're going throw 8K at me? Yes, 8k is stupid.

You are impatient for 8k content, me too.

When 4k arrived, we were impatient for the arrival of content as well as the first 4k blu ray players then HDR10 and other HDR formats thereafter as well as the arrival of new codecs. We had 4K cameras with better capture and mastering.
I'm not talking about the technological progress of televisions which is not ready to stop or even of the equipment for broadcasting.
All is not perfect...

As Lee A Stewart very well indicated "Technology doesn't stop".

The same goes for 8K, with the only difference that there are a lot of things already in place like HDR, which for me is a major breakthrough.
You will see more and more 8K cameras now see 16k, new codecs, new connectors, new broadcasting means, new televisions, all this to go towards better image quality.

We are living in an era where, in a short period of time, there have been considerable advances in video quality and its distribution.

[Geoff D]

Originally Posted by DDH

It seems to me it was the same talk when 4K started.
Fortunately, things have evolued since.

While I like and appreciate 4K resolution it's not the be all and end all of the experience, HDR has been the difference maker for me with 4K and by quite some margin. 8K is not providing HDR 2 on a format level, it's the exact same stuff as now just with 8K rez bolted on and that's not enough to blow my skirt up. I've done a lot of tech upgrades over the years, and I mean a lot, but I'm done upgrading tech for the sake of it. And as far as content is concerned there's fook all 8K stuff apart from demo vids and self-shot content.

The same lack of content can be said of any nascent system, true, but as finishing movies in 4K still seems to be as painful as pulling teeth for the major studios then where the heck are 8K movies finishes coming from? And for OTA TV, don't make me laugh: we're going backwards in the west when it comes to 4K broadcasts, never mind 8K. Streamers lead the way as they're not beholden to industry wide specs, they can literally set their own terms e.g. Netflix's insistence on 4K DV for homegrown deliverables and so if they insist on 6K or 8K finishes then they'll get them, but speaking purely for myself I don't watch OTT content for the quality of it (as little of it as I watch already), not that my internet speed could do 8K regardless as it already struggles with 4K. And I don't game, period. So all that 4K120 or 8K60 compatibility is beyond pointless for me.

I'm not saying other people won't find value for it, or that there isn't any value whatsoever to certain aspects - the quality of 8K TVs being a different factor to 8K as a delivery format - but from where I'm sitting, for the content I like to watch, it's providing an upgrade so incremental that I just can't get excited about it.

[Scottishguy]

[Show spoiler]

Originally Posted by Geoff D

While I like and appreciate 4K resolution it's not the be all and end all of the experience, HDR has been the difference maker for me with 4K and by quite some margin. 8K is not providing HDR 2 on a format level, it's the exact same stuff as now just with 8K rez bolted on and that's not enough to blow my skirt up. I've done a lot of tech upgrades over the years, and I mean a lot, but I'm done upgrading tech for the sake of it. And as far as content is concerned there's fook all 8K stuff apart from demo vids and self-shot content.

The same lack of content can be said of any nascent system, true, but as finishing movies in 4K still seems to be as painful as pulling teeth for the major studios then where the heck are 8K movies finishes coming from? And for OTA TV, don't make me laugh: we're going backwards in the west when it comes to 4K broadcasts, never mind 8K. Streamers lead the way as they're not beholden to industry wide specs, they can literally set their own terms e.g. Netflix's insistence on 4K DV for homegrown deliverables and so if they insist on 6K or 8K finishes then they'll get them, but speaking purely for myself I don't watch OTT content for the quality of it (as little of it as I watch already), not that my internet speed could do 8K regardless as it already struggles with 4K. And I don't game, period. So all that 4K120 or 8K60 compatibility is beyond pointless for me.

I'm not saying other people won't find value for it, or that there isn't any value whatsoever to certain aspects - the quality of 8K TVs being a different factor to 8K as a delivery format - but from where I'm sitting, for the content I like to watch, it's providing an upgrade so incremental that I just can't get excited about it.

Oh come on Geoff, get excited

https://www.youtube.com/watch?v=uM6f...ature=youtu.be

Seriously, you nailed it. Heck this is even the argument for why most dedicated tec devices are on the way out.

All the plebs need is an app and a screen.

[Lee A Stewart]

"The Motion Picture Innovation Train Never Stops" Says James Cameron

Nor does the HE TV train.

[ray0414]

Originally Posted by Penton-Man

opinions be as they may, ray, technology marches on - https://www.rapidtvnews.com/20210211...#axzz6mDSAdNjP

That's fine and dandy. But Samsung, Sony, and LG in 2021 are stagnant on new 8k models. They probably realize it's basically useless at this point and people aren't jumping on board like they thought.

-Samsung greatly improved their 4k lineup whereas last year it looked like their 4k lineup was dead. For 2021. I believe they are offering the same # of 8k models as last year.

-Sony doesn't have any 8k oleds again and still only have 1 8k model which is an lcd. All of their 4k models have been improved over last year.

-LG 8k oleds stagnant again too. Their 4k oled lineup though is greatly beefed up with with new Evo lineup, 83" 4k C1, and a super budget A-series oled lineup coming later this year. Their 2 8k oleds are 20-30k.

[DDH]

Demand for OLED Panels Keeps Growing
Samsung Display and LG Display Follow Different Approaches in OLED Panel Business
http://www.businesskorea.co.kr/news/...ml?idxno=60410

[DDH]

LG announces the global roll out of its 2021 TV lineup
https://www.displayspecifications.com/en/news/e3d54d4

[DDH]

Here's a shot of the #LG #EVO #OLED pixelstructure on the G1 65inch. Looks exactly the same as last year's 65 inch models.

https://twitter.com/ericbeeckmans/st...98069851611142

[DDH]

Best MiniLED TVs Feature OD Zero, active matrix & more zones

Best MiniLED TVs Feature OD Zero, active matrix & more zones - YouTube

[DDH]

LG to increase 48-inch OLED TV panel production to 1 million units in 2021
https://www.oled-info.com/lg-increas...ion-units-2021

[Auditor55]

Originally Posted by DDH

You are impatient for 8k content, me too.

When 4k arrived, we were impatient for the arrival of content as well as the first 4k blu ray players then HDR10 and other HDR formats thereafter as well as the arrival of new codecs. We had 4K cameras with better capture and mastering.
I'm not talking about the technological progress of televisions which is not ready to stop or even of the equipment for broadcasting.
All is not perfect...

As Lee A Stewart very well indicated "Technology doesn't stop".

The same goes for 8K, with the only difference that there are a lot of things already in place like HDR, which for me is a major breakthrough.
You will see more and more 8K cameras now see 16k, new codecs, new connectors, new broadcasting means, new televisions, all this to go towards better image quality.

We are living in an era where, in a short period of time, there have been considerable advances in video quality and its distribution.

There's nothing wrong with advancing technology. However, I have a problem with claiming some tech as an advancement when it really isn't. That's marketing 101. We have to be shown how increasing the resolution (8K) on a 55-inch set and charging a premium price is advancement. Sorry, it isn't, not really.

In the audio world, consumer advocate types have already beaten back the false claims of audio advancement, like the High-Res chicanery and ultra-expensive cables.

I see there's lots of work to do in the video world.

[DDH]

Originally Posted by Auditor55

There's nothing wrong with advancing technology. However, I have a problem with claiming some tech as an advancement when it really isn't. That's marketing 101. We have to be shown how increasing the resolution (8K) on a 55-inch set and charging a premium price is advancement. Sorry, it isn't, not really.

In the audio world, consumer advocate types have already beaten back the false claims of audio advancement, like the High-Res chicanery and ultra-expensive cables.

I see there's lots of work to do in the video world.

You are a bit reductive. The 8k is only interesting from 75 "see 85" and more for a TV.
Otherwise you have 8k monitors of small sizes but for a use other than the tv.

[DDH]

Measuring and Correcting MicroLED Display Uniformity


https://www.microled-info.com/measur...lay-uniformity

Correcting Emissive Displays

Display manufacturers have long used correction methods (electronic compensation, or calibration) to improve visual quality. The concept is simple: by modifying the inputs to individual subpixels of an emissive display, previously identified dim pixels can be adjusted to a uniform luminance level at each bright state, resulting in uniform brightness and color appearance across the display at all states.

Display correction requires, first, having in-display electronics that can control inputs to the individual subpixels and make adjustments based on the calculated correction factors for each subpixel. Second, a measurement system is required to accurately quantify individual subpixel luminance and chromaticity values, and compute specific correction factors for each subpixel at each bright state. This method was originally developed to calibrate LED video screens and has been adapted for today’s high-resolution emissive displays (OLED and microLED) using a correction technique known as “demura” or pixel uniformity correction (PUC).

Demura. The demura method employs three distinct steps:


1 - Measure each subpixel in the display to calculate luminance values at each pixel coordinate location using a high-resolution imaging colorimeter. Test images are driven to the display to target subpixels of each color set. These images enable measurements and correction factors to be computed for each set. For example, a green test image can be driven to the display to illuminate all green subpixels. An imaging colorimeter measures and records the output of each green subpixel. This is repeated for all primaries (red, green, blue) and, usually, white.

2 - Load measurement data from each display pixel’s coordinate position into a coefficient calculator. Correction factors are calculated to normalize luminance and chromaticity discrepancies between pixels in the display using test analysis software.

3 - Apply correction factors to the signals of each subpixel at each pixel location using an external control IC (integrated circuit) system.


A measurement and correction system applied in microLED manufacture must be capable of precise quantification of each subpixel with very low takt times to correct the high quantity of emitters in a single display at production speeds. Test and measurement solutions are evolving to address microLED display quality, combining traditional automated visual inspection systems with innovative methods to improve accuracy while maintaining efficiency.

[Lee A Stewart]

I would much rather see the industry change the Chroma Subsampling from 4:2:0 to 4:2:2. This will have a more noticeable effect on video content

[Penton-Man]

Originally Posted by Auditor55

There's nothing wrong with advancing technology. However, I have a problem with claiming some tech as an advancement when it really isn't. That's marketing 101. We have to be shown how increasing the resolution (8K) on a 55-inch set and charging a premium price is advancement. Sorry, it isn't, not really.

Not really, ‘we’ as those avid TV consumers with apparently thick wallets and discretionary income unaffected by the current pandemic only have to be shown that a top-of-the-line ~ 75” 8K tv looks significantly better than a similar sized top-of-the line 4K tv fed with current, typical source content having viewers seated at our personal viewing distances. The etiology of the possibly superior picture quality is unimportant to the buyer, be it increased spatial resolution, better processing, better Q/C, whatever. Only that an 8K tv shows a better picture PERIOD than a 4K tv.

Can’t wait for Robert’s Scarsdale crowd to come to his showroom, fully vaccinated and preferably masked up to see and score a 2021 8K vs. a side-by-side 2021 4K tv to settle this issue. Nothing fancy like previous shootouts involving extensive presentations, etc. don’t even need to recruit ‘experts’ to attend the event and score, just 20 or less of the local common man and woman would do.

[Geoff D]

I wouldn't trust the common man and woman to rate a ViewMaster shootout, never mind a TV shootout. Plonk a TV in front of them, set it to Vivid mode and watch the magic happen.