Latest TVs Are Ready for Their Close-Ups (wsj.com)
An anonymous share a WSJ article: The latest televisions have more pixels than ever. But can your eyes detect the difference? The answer is yes -- if you sit close enough. Old TVs had 349,920 pixels. High-definition flat screens bumped up the total to 2 million. Ultrahigh-definition sets inflated it to 8 million. And manufacturers are now experimenting with 8K TVs that have an astounding 33 million pixels. More pixels render hair, fur and skin with greater detail, but the benefit depends on viewing the screen from an ideal distance so the sharpness of the images is clear, but the tiny points of illumination aren't individually distinguishable. According to standards set by the International Telecommunication Union, that ideal distance is 3 times the height of an HDTV screen, 1.5 times the height of a UHDTV screen and .75 times the height of an 8K screen (Editor's note: the link could be paywalled; here's a PDF copy of the newspaper). Given those measurements, viewers should sit 6 feet away from a 50-inch HDTV with a 24.5-inch tall screen. But they should sit just 3 feet from a UHDTV of the same size, closer than most Americans prefer.
They had an electron beam than scanned across a shadow mask to the phosphors underneath.
The limit was the bandwidth of the analog signal, resulting in a measure called lines of resolution.
This entirely misses the point of 8k. It's not just a resolution bump, it addresses multiple use-cases:
- Very large screens / projectors
- Computer monitors that people typically sit much closer to
- 120Hz native for ultra smooth, realistic motion
- Much higher dynamic range and more accurate colour rendering
- Comfortably exceeding the capabilities of your eyes in all situations
If you want a perfect picture, like looking out of a window, this is what you need. Most people haven't even seen 8k in real life, and when they have it's often on an early model TV that doesn't support the full colour range or 120Hz.
8k is supposed to be the ultimate, the final form of 2D television. NHK, the people behind it, skipped over 4k because it's just a stepping stone to perfection. If anything is to blame here, it's 4k being a half measure and 8k not arriving quickly enough.
const int one = 65536; (Silvermoon, Texture.cs)
SJW, n: "Someone I don't like, and by the way I'm a fuckwit" - AC
I have a 720 32" TV. Its good enough for the shows and games I play. Does that make me some how evil? The way marketing is going I feel that way sometimes.
I like the higher resolution picture but I prefer content. That might be why I like to buy DVD's a lot of the time over a BluRay. Same content and cheaper.
You say things that offend me and I can deal with it. Can you?
The density race is pretty pointless as far as TVs on the wall go, but it has made for better monitors. I'm happy to have a 39" 4K monitor for a few hundred dollars, and I wouldn't have it if TV technology stagnated at 1080p.
Not sure how long a bed is in feed. It is 2m and I have a 52" (weird how those are in inches) at the end of my bed and I can see the difference between 720 and 1080 if I pay real attention and they play next to each other. For TV 480 is what I watch and although not perfect is is almost always good enough.
The TV is 5 years old or so and still works perfectly. If I need to replace it, it will be probably either the same quality, if they are still available or something that is as cheap as possible.
I do have 2 27" 4K screens as monitor, but I run them at 2K. Not worth going to 4K. Those are at 50cm distance.
I do understand that if you where a gamer, you might want to have something better, but with the shows I see, quality is not really a need. It has been good enough for me since 1080p. All the rest is extra money, unless I start to have 100" or 200" screens and have the place for it; which I don't. 100" (4x50") would need to be 4K.
Don't fight for your country, if your country does not fight for you.
Which specifications were used to arrive at that number? I remember VideoCD used MPEG-1 at a resolution of 352x240 pixels (a total of 84480 pixels) and while it looked a bit pixelated on a CRT it didn't look four times worst than usual.
#DeleteFacebook
Nothin' like detailed closeups of fat, ugly humans in HD. Makes me glad I held onto my AM radio.
So they're saying cinema-level resolution is wasted on a small screen viewed from afar.
Who knew.
The point of 8k is to use a BIGGER screen at the same distance while retaining clarity.
So we can see even more clearer now that the programming stinks, that the sitcoms ain't funny and that the thrillers are formulaic, predictable and anything but thrilling?
Seriously, I recently find way more entertainment in 30 year old shows than in the rubbish produced today.
We used to have a Bill of Rights. Now, with the rights gone, all we have left is the bill.
Why bother going outside when 8K+HDR TV look crisper than the real stuff?
I guess I should move closer to my 13" Muntz TV. According to the suggestions in the OP, I should sit about 24" away from it. Of course I'm assuming no one knew what a pixel was when it was made, so I'm just using the dimensions of the tube assuming it has pixels. The idea that there would be tiny Pixel phones, or even a Google, would have been laughable.
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Admit the primary customers are rich porn addicts so we can move on.
Nor will I listen to any music in a digital format. Vinyl is far superior for true audiophiles such as myself. I also refuse to use any of the so-called social media platforms which ironically just make everyone less social!
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In 8 billion pixels. I can't wait!
Lots of content is in a standard "tv" format of 640x480, DVD standard is 720x480 (576 pal) while the high end content commonly available is only HD at 1920 x 1080. 4k is 3840x2160, if you can even find 4k versions of the content you want to consume. To top this off, far to much content is compressed heavily at this resolution to lower the bandwidth, defeating the point of more pixels. All 8k is going to do is make the compression artifacts from all content even more crisp and clear. I've long wondered why people even like the newer digital formats as I would personally much rather watch content blurred out evenly, like with an old crt, than watch HD, doubly so on 4k+ displays, and see the crisp digital noise concentrated around anything of fine detail or high contrast.
Unless it's a phone, then just strap the bad boy to my face!
Actual TVs couldn't show all 720x486 pixels. The analog bandwidth of NTSC RF video is 4.2 MHz, with roughly 0-3.0 MHz for luma and 3.0-4.2 MHz for chroma. The 3.0 MHz limits the usable resolution to 320 pixels across, as anything higher will start to produce color fringes as luma detail mixes into the chroma. (SD viewers can occasionally see fringing on neckties on news channels.) In addition, fine horizontal lines in interlaced video will shimmer on a CRT if not blurred vertically before interlaced sampling. This gives a usable resolution of roughly 320x360 per 480i frame.
Same for me. It's perched on an small, wooden stereo cabinet with a DVD player I deliberated purchased with no BluRay support.
[*] As soon as they sell a feature to you, they count you as a user—see Google+—and then that statistic is rolled out to the studios to pressure them into dropping the format you actually use.
Our minimal yet adequate television resides in the corner of the room. Once a week we roll the stand very close to the couch, and pogo both of the speaker stands up close, as well. Then, when we're done watching (one or two movies which I procured on DVD days ahead of time) we send the court jester back to the corner where it belongs.
_____
Hitchens was fond of repeating the line that "alcohol is a good servant and a bad master".
Lustig, in his new book The Hacking of the American Mind, pretty much lays out the case that every dopaminic daemon needs to be kept on a short leash. To run this through the not-so-brainy left/right cheese greater: dopamine is the neurotransmitter of reward, and serotonin is the neurotransmitter of accomplishment.
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I basically read the whole of Chaos Monkeys straight through the other day. The Wolf of Wall Street strand is the usual dopamine, dopamine, dopamine narrative. Antonio goes so far as to moot with a faint toot Facebook's binge-drinking IPO as a vestage of moderation because he didn't notice many dishevelled revellers in unusually close consultation doing lines of coke off the nearest conference-room table.
_____
Convenience. More than half the time it means: won't get between your and your next dopamine hit. Back in serotonin world, I consider my television "convenient" because it stays in the corner when I put it there, and demands little to no attention when I'm better occupied by other life pursuits. Dopamine is a high-maintenance hobby. And now we've essentially proved that this is no accident: its core biological function: to keep you going back to the well for high-maintenance things.
Chasing the dragon
Compared to heroine, video resolution is a relatively cute dragon, the Draco vulgaris that Pratchett mocks in Guards! Guards!.
Yeah, in their living rooms and bedrooms. Unlike the household squealer from the European middle ages, dragons whisper ever so slyly.
The dragon dictates, and, lately, it also listens.
Samsung Warns Customers To Think Twice About What They Say Near Smart TVs
Ever this seductive dragon whispers "come closer, little girl" and "moar pixels!"
The point is, though, that getting 4k or 8k content is essentially useless unless you sit 3' from your TV. Which means, internet bandwidth is basically being wasted on nothing productive. That's probably why some cell providers downscale your Youtube videos: You can't really tell the difference on your 5" screen, so better to save bandwidth.
Unless content providers start using smaller aperture video cameras, the real limit to TV resolution is the narrow depth of field of large lenses. Directors love Bokeh : purposefully making large areas of the scene blurry to place emphasis on one face or object.
But they should sit just 3 feet from a UHDTV of the same size, closer than most Americans prefer.
This statement makes no sense. For one thing, what does being an American have to do with anything at all? Why would nationality affect how close people want to sit to their screens? Are the French so busy feigning disinterest that they need to sit that close to see what's on? Do the Brits need to sit that close because they have tiny screens they can quickly hide when the TV tax man comes around to collect? Would all of us Americans sit closer too, if not for the fact that our rampant obesity keeps us from doing so?
Come on.
More importantly, however, pixel density really has very little effect on where you should sit in relation to your TV. For people who have good enough eyes and actually care, it puts a lower bound on how close they can sit (i.e. a point at which they'll start to experience reduced quality due to the resolution of the TV), but it doesn't tell them where they should sit. The major factors in determining where one should sit are the size of the screen and how much of the field of vision one wants it to fill. Dolby, THX, and other industry groups tend to recommend sitting close enough to the screen that it fills more of the field of vision, providing a more "cinematic experience", but even their recommended seating distances (which are closer than most people seem to prefer) still have people far enough away that most people won't see any difference in terms of resolution (HDR and other advances notwithstanding) between a 1080p TV and a 4K TV. When the industry made the move to 4K, they blew past the point where resolution mattered for home theater setups, even for viewers with beyond 20/20 vision, in much the same way that the "DPI wars" in the printer industry eventually came to an end as it simply stopped mattering.
Which isn't to say that these resolutions are pointless. There are still numerous use cases where people sit closer to their displays (e.g. desktop computing) or have the display filling more of their field of vision (e.g. IMAX), so we still need higher resolutions for those sorts of use cases. And because passive 3D typically relies on polarization to direct half the pixels towards each eye, it requires that the screen support double the resolution you actually want to view content at, meaning that higher resolutions are still useful. And there are new possibilities that may be of interest as well as higher resolutions open up.
For instance, I recall seeing a patent that would have allowed up to 16 people to view a movie in 3D at the same time without any of them having to wear 3D glasses. The trick was having a projector screen with microscopic ridges angled such that each eye of each person saw a different set of ridges than any eye of any other person. More or less, there would be 32 copies of the image on the screen at any given time, with each eye only able to see one copy of the image. But to do that, you'd need to have a projector with such a ridiculously high resolution that it could hit each of those microscopic ridges perfectly. That notion seemed practically impossible back when it was proposed in the heyday of 1080p, but it suddenly seems a lot more viable as we start to talk about 8K reaching the market.
... is, "as resolution goes up, you'll want a bigger screen if you don't want to move your couch".
"Given those measurements, viewers should sit 6 feet away from a 50-inch HDTV with a 24.5-inch tall screen. But they should sit just 3 feet from a UHDTV of the same size, closer than most Americans* prefer."
*Closer than anyone prefers
In other words, in a normal, living room application, HDTV and UHDTV with a 50" TV, the two are indistinguishable at comfortable viewing distances. Now if you have a 40" UHDTV as your computer monitor, you can still definitely tell the difference. The industry needs to find a new gimmick. HDTV was a good, reasonable upgrade, flat screen was also an improvement, but for typical applications, 4K and 8K TV is just not significant or even noticeable.
Beyond that, sitting that close to a TV for long periods increases your risk of eye strain and developing vision issues (your eyes need to relax periodically, which is why one should take periodic breaks from the computer.)
If you disagree, please post your argument. (-1, Overrated) isn't your personal censorship tool for views you don't like
But they should sit just 3 feet from a UHDTV of the same size, ...
There are better ways of going blind, like masturbating.
It must have been something you assimilated. . . .
Laurence Fishburne, sitting in the front row of IMAX Matrix Reloaded. /shudder.
Laurence didn't look that good blown up that large either.
"...the benefit depends on viewing the screen from an ideal distance..."
Actually, that only matters if FIRST the content is either delivered at that resolution or upsampled to it.
Upsampling can be good, but never of course reaches the primary resolution value.
Hell, what do I know? I'm still perfectly happy with my hi-def tv; I never jumped on the 3D or 4k bandwagons and don't feel like I missed a thing. Hell, I end up watching most of my films on my computer screen anyway.
-Styopa
I've heard people say similar things to rationalize why no one needs over 60 Hz or over 60 FPS in a video game. [quote]"The human eye can't distinguish a difference beyond 60 FPS! There's a reason films are shot at 24 FPS! and no one even notices!"[/quote] However, as a long-time competitive Counter-Strike player, I can easily detect the difference between 60 Hz and 100 Hz, or 100 Hz and 144 Hz. I actually kept a CRT monitor until 2012 because it could output at 100 Hz -- I had tried switching to LCD before then, but always returned the monitors because it negatively effected my play. Even now on my 144 Hz Benq, if CSGO launches with a 60 Hz refresh rate for some reason, I know something is wrong before I even join a server because my mouse has too large of a tail when moving it across the title screen.
Now my anecdote doesn't speak to whether humans can necessarily tell the difference between 4k and 1080p, but it does illustrate that people will make claims about the limitations of human's perceptive abilities that are wrong -- or at the very least, don't apply to all individuals and all use cases.
I personally think there is a clear difference between 1080p and 4k, even in a "normal" scenario, such as a 48" TV viewed at eight feet. I remember people saying something similar in the late 2000's: There is no point in getting 1080p over 720p if the screen size was less than 32" because "you can't tell a difference anyway," but I think most people would now agree that is incorrect.
People have no pronblem being 1 foot away from their tablet or phone but all of a sudden when it's a TV "whoa back off"?
Anyway it still doesn't make sense. If I sit 3 feet away from my TV, most of the content will be in my peripheral vision.
Nope. That's only if you have a particular size TV. Your TV is not everyone else's TV.
If you are SO bored by the content you're viewing that you can spend time looking at the number of pixels of resolution and how black the blacks are, adding more resolution isn't going to make it better.
People tended to hold onto them for as long as they were functional, which could be a decade or more. We had a 27" tube television which was 16 or so years old and still going strong when we replaced it with an HD set 10+ years ago (that old beast weighed something like 90 pounds too! I had a lot of fun hauling it away...).
And while Slashdotters are always more prone towards acquiring the new shiny toy, I suspect the average television owner still follows that principle... but the manufacturers keep trying (and generally failing) to induce people into treating their TVs as disposable gadgets which should be replaced every couple of years. 3D television was their first attempt; then 4K; now 8K. Meanwhile fewer people than ever are sitting down and staring at a television screen without also constantly texting on their phone or doing Facebook - it's doubtful they'd notice the increase in TV resolution even if they were a foot from the screen.
#DeleteChrome
More pixels render hair, fur and skin with greater detail
Yes, but who want to be able to count how many nose hairs a newsreader or actor has?
It seems to me that picture quality is a very poor substitute for programme quality. But since it is the only substitute we have and it doesn't look like programme quality is going anywhere, any time soon, I suppose that counting nasal hair is what will pass for entertainment in the future.
politicians are like babies' nappies: they should both be changed regularly and for the same reasons
Yes, when you focus on a small detail on the screen (games, sports, photos, etc) resolution matters, and you want as much as you can get. FWIW, full frame 35mm Kodachrome64 (100 lp/mm) is about 7200x4800. On Tech-Pan (b&w 600 lp/mm) that's 43000x29000. 1250K anyone?
But lets not kid ourselves -- portable DVD players and airline seat-backs hold attention with 400x263. Everything depends on viewing needs.
Smaller macro blocks will make any higher resolution video look better... And best of all we may not even need 8k TVs to enjoy the benefits.
The terrible resolution and artifacting I see on current 4k content means if we get 8k content it should be at least an improvement in that area.
I have to sit 3 feet away from my future TV to see Trump's nose-hair real sharp?
Thanks but I'll pass.
I'm in an apartment. I already have a 40" TV, and it covers the entire wall I have available for it and the glare from windows ruins the colors. If it were to be given to me, I wouldn't want a bigger TV or would I care about a higher resolution.
What I would care about would be decent speakers built into the the thing, and a wireless protocol to move speakers behind the couch so that I can have surround sound without running wires over the floor. No, I'm not interested in investing as much in speakers as I paid for the TV so that I can have a second remote for a complicated, scarfed on solution that barely inter-operates. And, no, I don't want it to have 1000W of audio output. I'd prefer NOT to have the complaints from neighbors.
IOW, why can't manufacturers look at the vast majority of people and solve their problems, instead of just trying to sell the next iteration of the same thing.
Aah, change is good. -- Rafiki
Yeah, but it ain't easy. -- Simba
Still waiting for networks and cable companies to upgrade to 4K or at least HDR...but we all know they wont do poop unless its forced on them by legislation like the switch to digital HD was.
I say that because the other day I watched a news story about Blade Runner on the lesser of my TVs - the one that's only 720p. I had been drinking but the picture looked great and I seriously wondered if they had done something to it. I have all the different versions of Blade Runner so it couldn't have been something I hadn't seen before - or was it?
I don't know, but for some reason it looked more vibrant with the colors contrasting better than I had remembered in the movie.
Maybe I was affected by the alcohol although it wouldn't be the first time I've seen Blade Runner (or scenes from it) while drinking.
Sadly my eyesight is deteriorating with age seemingly almost as fast as TVs are improving. I used to have eyes like a hawk but now I can't even see what time it is on my alarm clock across the room when I'm in bed. What do I need with a better TV?
Not surprisingly I sympathize with those with poor vision more than I used to. I had no idea what it was like when someone told me they were practically blind without their glasses. I just couldn't relate to it until my own eyesight started to falter.
Given the choice between an 8K TV and a pair of glasses that would let me see like I did 10 years ago, I'd take the glasses over the TV.
Where are my replicant eyeballs?
If anyone can get me in touch with Hannibal Chew I'd be most appreciative. He just does eyes.
if only you could see what I've seen with your eyes!
I think you're missing the point of the OP preferring the certainty of vision enabled by the black-and-white format. As the name implies, "Green Acres" and its ilk introduce a slippery slope of variable color palettes that are unpredictable and inconsistent in their ability to accurately represent the stark reality of right and wrong in our world.
Not to mention the theft of imagination perpetrated by RGB pixels. Does the audience need to be spoonfed that Opie's hair is red? Let the character develop that understanding through exposing persistent vulnerabilities so the audience gradually acknowledges subconsciously that the Opie character is driven by recessive ginger traits.
$5 / month hosted VPS on linux = awesome!
on a 125" diagonal screen. So far all moves look just fine to me sitting 11 feet away from the screen. I got the projector for $375 refurb and got the screen for $175 CDN. Unless the bulb burns out or the unit stops working I don't see the need for 4K let alone 8K. Also same there I buy dvd for $2 at pawnshops the rest I pirate.
by TheSpoom (715771) Uncaring Linux user here. I have nothing to add to this but please continue. *munches popcorn*
8K is fine and good (though I agree with most that it is pretty much overkill), but pointless without 8K content. I have a hard enough time finding 2K content - 1080p is still the standard, like it or not (of course, there are specialty sources of higher content, but broadcasters generally max out at 1080p). So... what's the point?
Let's get more 4K content, then 8K, and beyond. That will help force ISPs to fatten up those pipes, and bump data limits.
Personally, 720p is good 'nuf.
You are dreaming if you think it will "force" ISPs to do anything. OK, it might inspire them to clamp down on bandwidth hogs, but that's about all.
If the data stream is CATRS (Compressed All To Rat Shit)[tm] the you need to multiply the "recommended distance" by the "compression factor" in order to get a viewable image.
SO for Cable TV you need to sit at least six times the recommended distance in order to not be blinded by the compression artifacts. NetFlix fullres needs only twice the distance, Blue Ray source material is (usually) not CATRS, though there is much that is CATRS, particularly when encoded with some of the original "really crappy garbage ass" codecs .
Then again, most other screaming sources are so badly CATRS that you ought to be viewing them on a 5" diagonal screen from 30 feet in order to hide the compression artifacts.
The whole thing is mostly a marketting fad and has nothing to do with reality. If reality were involved at all, then the "TV" would be a monitor with NO SPEAKERS (really, you are going to fit my $22,000 EACH speakers into a TV -- I kinda fucking doubt it). And the tuner shit would be gonzo.
I have not used the speakers on a TV or anything other than a single "line input" since the 1980's. Why would I want to start doing so now?