What is "Retina"? Pixel Density or PPI as Fast As Possible
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- เผยแพร่เมื่อ 23 ก.ย. 2024
- Retina displays and other high pixel density displays such as 4K TVs, 1080p cell phones, and Full HD+ tablets are being heavily marketed to consumers. Cut through the sales fluff and understand what it all means in a couple minutes!
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When you realize audible is advertising on yt for 6 yrs now
Make it 8
@@adihaeri9171 make it 9
Make it a decade
When you realize books have been around for like 50 years or more
@@SweetKingTanner make it 11
I like this dude. He sounds smart therefore he must be talking legit stuff
He is also wearing a professional looking polo shirt. He looks trustworthy.
***** Your profile pictures are like a short story, the guy pukes rainbows which form an alpaca.
He is Linus, he is our master, the teacher of technology.
deafyboy86 Praise Linus, disciple of Gaben.
i like pizza
32" 1920x1080p monitor owner here. Couldn't agree more. I couldn't care less for 1200 or 1440p resolutions. 1080p has served me well for quite some time, and it still looks wonderful to this day.
Did you opinion change since then?
I'm so glad you spelled "colour" correctly Diezel or B-Roll! That made me quite happy and was probably my favourite part of the video. I also love the professionalism on this channel for the target audience. It makes me feel like Linus is "at work", whereas the LTT channel feels like Linus and/or Slick and I are just kicking back with the nerdy shit we're into. Loving everything Linus Media Group is doing, keep up the fantastic work guys!
Interesting point, but the complications that arise from manufacturing 1000 ppi or 2000 ppi displays thatare outlined in the video are very real, particularly for consumer grade products. The future is going to be awesome though...
Apple's displays have more going for them than just resolution. They have (objectively, no fanboy nonsense) some of the best mobile displays on the market when you consider contrast, colour accuracy, AND resolution.
REALLY, REALLY like the change in camera angle throughout the video! great job! Techquickie
Personally, i like AMOLED screens. When i compared my Note 2 screen with my friends iPad 4, my colors were more vivid and overall it looked better. The difference was actually quite big.
Your advertisement transitions are always unexpected and humorous, love it.
i have a phone with 213 ppi with a 4,5 inch display and for me it looks great.Have to really stare up close to see any pixels.
"speaking of links in the description" wasn't awkward enough for ya? I thought it was pretty brutal...
Damn no one replied to this in 7 years. Didn't think *that* was possible
@@mitlanderson hahaha, we have
@@mitlanderson lmao wow
@@amangowalkar yeah lol, hi
DPI is dots per inch, it's a term used in printing. That's how many dots of ink exist within an inch squared. DPI is typically half the PPI when going from digital to print, though with these higher density displays becoming more and more common that general rule of thumb is most certainly no longer an accurate one.
Caller: "You have been mis-sold PPI, sir"
me: "How can you be mis-sold pixel density, you are a stupid man"
Caller: seems confused
me: Hangs up
@@tantsisbeats You aren't British clearly
Just Google 'uk ppi scandal'
@@tommmicron ok lol
@@tantsisbeats did u find out
I have a 40" 1080p LCD TV, and I have been watching the TV series '24' on DVD. When I was watching it from about ten feet away, the quality looked really good. Now I have moved my TV behind my computer desk, meaning it's right in front of me. I tried watching 24 again, and it looked absolutely horrible! I could clearly see the pixels. I really need to get a 4K TV.
Linus said "Draw a diagonal line and then measure diagonally". You would be right if he said "Draw a 1 inch box and then measure diagonally".
To work out PPI you do the following;
Vertical Pixels (a) = 1920
Horizontal Pixels (b) = 1200
Diagonal Pixels (c)
Diagonal Inches (d) = 7.02
√(a^2 + b^2) = c (2264.16...)
c / d = PPi (322.5292694720206 or 323PPI rounded up.)
4K likes. Pretty cool
I can play most games on Ultra with my set-up on 1080p and it looks amazing enough already. I'm sure 1440p would look better, but I am more than satisfied with 1080p. Maybe when 1440p becomes the new standard I'll jump up to it, but til then I am fine with 1080p.
commercial mass production is always at least 5 - 7 years behind mature lab results. just because currently 400 ppi is high end, doesn't mean we are not capable of producing higher ppi. JDI already made a small display at 650-700ppi and it was almost half year ago. give it another few years, we'll see 1000+ ppi displays in the lab and commercially available in two years after that
Really like the new format! Good job!
A thread is a task for the processor. Cores run threads. Usually you will have several dozen or hundreds of threads running simultaneously, but most of them are very light.
good question. We probably should have mentioned that high pixel density displays ARE awesome.
Actually I was referring to a poll I found that Samsung alone sold twice as many devices as Apple (in whatever quarter they were looking at) and Apple still lead the market in total profit overall. Of course Samsung (and everyone else But Apple) has multiple devices, and everyone but Apple rolls out newer ones every 3-6 mos. So you're correct about the "premium pricing". And TBH, IDK if that included Tablets. it just said devices.
i have "retina" on my macbook and damn its sharp compared to my old dell inspiron.
It's because you had an old dell inspiron. It's like me saying WOW this 4k display is so sharp compared to my dell 1280 x 1024 display of similar size.
Thanks Linus and team, keep these videos coming. They have been (and will be) really useful.
1:27
But I want to see tigers at 8k ultra hd
I have a 1440x900 monitor that I am currently using and I enjoy using it more than the 1080p monitors. It also gives me better performance ;D.
With the sacrifice of beauty
Wow, your computer must SUCK!
We tried this and it was a disaster.. (look at previous Fast As Possible videos) Then my cat knocked a Kino Flo light (expensive) into the wall and put an ugly mark on it, which 3 coats of primer and paint weren't able to cover up, then we just gave up and went green screen :p
It depends on the size of the display but nowadays 500+ PPI is what you should aim at if you want the highest appreciable quality in your smartphone.
I loved this format better! Keep up the good work and thank you for your hard work and dedication!
Green screen may help with the animations they pop in and out. They could also change the entire background if they need to show something else.
I readed that oled technology do have a finer pixel density to make things look as fine and crisp as on paper, but if i looked close and futher then my nose,i could clearly see pixel onscreen,so even if the source is 4K and that tv can handle it,does not mean it has a higher dpi or bpp rate.
thankyou Linus, your techquickie videos are my favorite.
here im gonna take time and remove adblock just for this video. something I never do.
so is there any advantage at all to having a higher ppi? like a 27in 4k screen would probably be sufficient to be "retina", but would there be any noticeable difference whatsoever if it were, let's say, 8k? or is it simply, if you can't see the pixels, you don't need more resolution.
I can see pixels on my macbooks Retina Display... Am I good or too close to the screen?
omg that asking xDD
+Lehtaan The problem is you're using a mac.
+Jeremy Kurowski No, the problem is you're a windows fanboy. Macs PPI is actually pretty good.
Jeremy Kurowski Just plain Linux? No ubuntu or anything like that? Sad. I'd recommend Ubuntu for you, it's really great. Lil' fanboy.
The problem is that I want a linux machine with high ppi and high resolution on which I can play games and code. And I would only recommend Ubuntu to someone who wants to have a mac but doesn't have the moneyz. Go Arch or go home.
and here I thought the Ipad would scan your eye for some reason lol
DPI and PPI are basically completely different. DPI is a term that is usually only used when printing an image.
I mean an iPhone is capable of full 1080p on a 5.5 inch screen. I think it looks fantastic. Images are sharp and 60p video looks wonderfully smooth. I don’t think we’ll ever see a phone with UHD. I cannot see the individual pixels on the screen. My laptop on the other hand has a 15ish inch screen, also at 1920x1080, and if I get close enough I can see the pixels. The tv in my parents living room is even worse. It’s like 55 inches, but still only 1920x1080. Pixels are very easy to see even from a couple feet away. My dad recently got a 4K tv for the patio. I haven’t actually watched anything on it yet, but I’m sure I won’t be able to see any pixels
I thought this was a very good over view. Though there is still lots of different aspects that make a screen more crisp but then we get very technical so it doesn't matter to much and we would just start confusing more people.
I believe the original Droid DNA was the first phone from HTC to use SLCD3, though I might be wrong but I believe it is a different panel from the One. (citation needed)
(after googling, DNA IS slcd3, still unsure about panel though)
It's the profile the use too. They tend to be better calibrated out of the box than the displays you get from other vendors, even if it's the exact same panel.
The PPI needed to match the average fovea cone density is in the 250 range from 2/3 feet viewing distance. So we're pretty far from the perfect PPI experience needed in games. You'd need 4K on a 17/18" screen or 8K on a 32 to 35" (both in my opinion too extreme as monitor sizes). Guess the best overall monitor experience with eyes comfort for extended period of times is 6K on a 24 to 27" monitor...or I guess that 5K with a high framerate would suffice on a 27" screen. So yeah I guess Apple got one right with the iMac monitors. Still exceeding the average fovea cone density I personally think is NOT useless as it adds even more details to the image, so fuck it. 8K G-Sync, 200 Hz, IPS (Or Oled or Uled) with HDR on 27/28" monitor is my bet for the PERFECT gaming monitor experience. Maybe 5 to 10 years from now?
Pretty correct except for the 8k res on 27/28”, more realistically 4k or even 1440p
The problem is that vividness isn't always better, although to your eyes it looks better (well saturated colors have a pleasing effect), what the iPad looks for is a more neutral, accurate color. AMOLED other than PENTILE has another downside and it is the slight bias to a more 'cool' color temperature, which in a way increases saturation. If you take a look at some high-end displays (500$ and up) they will usually be looking for color accuracy and not saturation and contrast.
Thank you! Finally someone speaks some sense about this topic!
As usual, great video!
Because of PPI, I'm not fan of big screens.
Then just tape a bunch of tiny monitors together, silly. :^)
Sawta
No, because if I hate something more than a screen with low PPI, are borders.
just get a big 4K screen, good enough ppi then
0M9H4X
Yeah... because get a 4k screen is so easy...
Lámbientan Lámbientan Indeed
Even though 'color accuracy' could cover it, I think you should have mentioned a viewing angle at 2:02
he is linus.... he does unboxing and reviews on his other channel mostly centered around computer related stuff or stuff that he can get his hands on.... basically he does what ever he likes and wants and could on a video... you also can see him hosting the NCIX channel on youtube as well... he does the same thing there also... this is his channel for giving us info on things we have question on. He also has a cat tips channel as well.
for a PC monitor i see the benefit from higher resolution and pixel density especially for higher than 22" monitors but for phones and tablets there is no benefit beyond 1080p
Using Blu-Ray instead of DVD would also make a pretty big difference.
so sick of these minute long commercials... the reason why we watch you linus, is because you get to the relevant shit right away and keep it clean and simple, yet decent long.
The best info per minute.
Good thorough video Linus as always :D and I also love the new editing style used in this video. Good job and keep up the good work :D
Thanks for making this video!
Because the S4 components and specs are higher. The processing, battery has higher capacity, screen is larger, sound is louder, camera is dual and 13 mega pixel. It adds up, and Plastic provides better cellular reception.
I would love this revisited, beyond resolution, screen size and distance there is also Angular Resolution: www.pugetsystems.com/labs/articles/Can-you-see-the-difference-with-a-4K-monitor-729/
This is why when people ask me "Which flatscreen tv should I buy?" My standard-answer is always; go to a hardwarestore, and look at the demo-tv´s they have set up, grab the remote and try it out, test it.
Cause if I start talking about pixeldensity and LCD versus LED and aaaaaall those details, the regular user will just curle up in the corner sucking his thumb :)
Linus is still getting even better for every video he is making. Sky is the limit.
wait, do you see better when you're closer to the display or further away?
Fair enough. I mean if we were to both look at the same PR reports we could easily both interpret different things. For instance, say in your example Samsung outsold Apple, say GS4 vs. iPhone 5. But there are lots of factors at play such as the fact that the GS4 was a new device while iPhone 5 is in the decline of its product cycle, etc.
Not saying you made up those numbers or that I disagree, but generally speaking I still wouldn't say that Apple is being outsold by quite that high of a ratio.
Man I hate apple marketing/naming, it's like they think their customers are total idiots that can't understand simple concepts like display resolution. Like the "iSight" camera, the "magic" mouse, "air port" and so on.
In apple's defense, their customers generally are total idiots.
Say what you will about apple but you can't argue with their marketing strategies. I bought a Macbook for the sole reason of social status. I had an Android phone and I felt ashamed of it and no one had its charger when I didnt have mine. My friends who dont have apple agree even though they know their laptop or smartphone is better
Nakor Z Agreed.
***** What does? Certainly not a any apple product. Also what the hell is an igpu
Matt Flynn I don't know where your from, where more people have apple phones but everyone I know has a micro usb charger does not matter if they buy a samsung or a nokia or anything else. They can know for sure that what every they buy they can use that cable for everything. Simple as that. Don't need a "special" cable just because a company with great marketing and heaps of idiots to sell to wants to be "different" from everyone else.
backlighting is where we need more improvement most displays are using more power then the cpu the device is equipped with. also companies as of late love to skimp on battery size just so they can say their device is light and sleek not to mention their still using lithium batteries when we've had Li-imide batteries since 2007 which last 3yrs before starting to lose charge and 2 AA's worth can hold upto 5300mah of charge. the Iphone 5 has a crappy 1440mah battery for reference.
true that... i get it for workstations, i mean for professional use you probably want 2560x1440 or multiple monitors but for gaming 1080p is fine imo, and for a phone I have an iphone 4 which is like 960x640 and it looks really crisp, but the previous gen 480x320 did look pretty awful... i imagine somewhere in the middle is fine but i rly dont need 1920x1080 haha
Loving my HTC One X screen. Its sooo good!
It wasn't to much of a problem untill lately. These problems began yesterday, and since it has happened on almost every video I've watched.
I recently purchased a Nexus 7 2013 model which has a resolution of 1920x 1200 and a ppi of 323 and I genuinely cannot tell the difference in quality between a 720p video and a 1080p video while using it.
very good video, thank you Linus :)
Bring on the 600 DPI (or something like that) 4K 5" screen.
Noooo, not for phone use, but for Rift use :)
Yea ur right. I think it was a Q4 report(?) since I saw it a month or so ago, so it would've been the GS3 (and other devices; remember there are many) vs the iP5. So it was the iP5 that was new to the market. Which actually makes my reference a bit old since we've now entered Q3 of 2013...lol. But that also means we're only seeing Q1 results as current since it takes a couple mos to compile data.
7 years passed, retina displays are still expensive and even hard to find
Would you please consider doing a teckquikie on ad hoc network, we would really appreciate.thanks and keep up the good work
2:25 it's active matrix organic light emitting diode
from memory but i did google that long time ago
my laptop is 17.3inch with 1080p display 127ppi and im happy with that
Nice Explanation Thanks Linus...:)
If my "DPI" is "240", would I need to use Pythagorean's Theorem to calculate PPI?
MISSED THIS SO MUCH!
Oh, this is super useful! thank you!
I've missed techquickie :')
Yep looks fine to me... I wouldnt complain if I had a 1440p monitor but as long as a 1440p monitor costs 3x more and a graphics card to power the game at that resolution costs 2x more, I'll stick with 1080p :P
I wish they would stop with the resolution increase on phones now. At 720p at the realistic distance you hold your phone from your face, you'd be hard pressed to tell the difference between all those new spiffy 1080p phones. If they just stuck with 720p but kept improving the performance you would see more benefit with better fluidity in games and the phone would just preform better all around. Sadly that won't happen because it's too easy from a marketing stand point to show a big number.
If Apple were so confident that you couldn't see the pixels anymore, they'd switch off anti-aliasing for text. The truth is that it's like with fps: we are still a long way away from the point where more isn't better anymore. We're at the point where you still can't have enough. I can easily tell the difference between a 600 dpi and a 1200 dpi printer. So good luck selling me a 300 ppi display as the last display I'll ever need.
It's just marketing. Anyone who buys into marketing wholesale is gonna get screwed.
Penny Lane sigh, apple was the first one to bring a retina MacBook meaning when Apple introduced the retina MacBooks they had the highest pixel density on any laptop ever. Everyone complained how it resolution didn't matter as much and now that Apple is keeping it retina and not increasing the resolution for the sake of increasing the resolution when there's no real benefit, everyone suddenly need the highest ppi display even though Retina display is all you need for you to not be able to distinguish pixels.
If there were significant benefits to increasing the resolution after a certain point which is retina then Apple would've done it as Apple was literally the first to put retina or highest resolution display at the time when they introduced it first.
No, I applauded Apple for finally pushing the resolution of displays which had been stagnant for quite a while before. I just think "Retina" is a stupid marketing term and that the claims attached to it are dishonest. It is also clear that there are diminishing returns when increasing the pixel density and since there are other factors at play, everyone will have a different sweet spot with respect to their individual preferences (battery life, price and pixel density mainly). It is perfectly reasonable to limit pixel density in this trade-off. It is not reasonable, however, to claim that no compromise has been made and that nobody would ever want a higher pixel density when these other restrictions are falling away due to further technological progress.
Things that really matter in internet connection . Put that on the list Linus . =D .
Please do a video on 1080p phones vs 720p phones and the PPI difference.
There are tons of people online saying anything over 300ppi doesnt matter but upgrading from a 720p phone to a 1080p phone I can really see the difference.
I guess the question is do we really need 400+ppi?
720p is fine for me on a phone I'll take a lot higher than 1080p on a pc though. (1440p, 2160p etc)
With a phone I would rather the battery life and more invested in the camera.
there's no need for a video to answser your question.
You can't really focus to objects closer than 10cm or 4 inches .
So when i did that and struggled to focus maybe 6-7 cm away from a 4.7 inch 720p mobile phone display(htc one x) , i started seeing the pixels , they were tiny but visible for like 5 seconds then my eye went out of focus (cause i could only focus one eye on that distance).
so if you have regular perfect eyes anything around 300ppi should be enough .
I can imagine 400+ ppi is like no matter how hard you try you just CAN NOT see the pixels even from 5cm .
Well 200ppi+ should be well enough if you're not too picky.
there is meaning to go any more dense couse a LOT of people have problems reading text and resolving detail under let's say a font size of 7 , and a 7' font is already crisp on ~300ppi.
BUT YOU CAN'T benefit from newer techologies in the mobile space without having to buy a 1080p smartphone. Even if there is no real benefit other than numbers.
huhhhh i hope this made some sense...
Thanks. Went from 720 to 1080 and I felt what you said, that I could not see the pixels as hard as I tried. I honestly like it but people always try to argue with me that there is no difference.
Pixel density is not the measurement of how many pixels are in a square inch. It is if you measure one inch along a monitor, how many pixels are equivalent to that inch at the given size of the pixels on the display.
Can't the white background be rendered in a higher quality to remove the banding? The bands look better than they used to, but still seems like it could be better.
Is there a big difference between 386 PPI and 560 PPI for human eyes on a 6,6 inches smartphone Oled Full HD display? If yes, could you explain me what kind of differences Please?
Nope, that's incorrect. PPI is a horizontal or vertical measurement, not a diagonal measurement. You need to measure one inch up or down and count the pixels, not diagonally. Case in point: the new Nexus 7 is 1920x1200 on a 5.9in x 3.25in display, giving 325ppi (officially 323). Doing this along a diagonal inch would give two wrong answers, depending on whether you count horizontal or vertical pixels traversed, of 1/7 * 1920 = 274ppi or 1/7 * 1200 = 171ppi.
Apart from that, great video! ;-)
Ya but where do you draw the line? This is similar to the fiasco of determining how many frames per second or refresh rate or eyes need to see continuous motion. It's like Moore's law, things are improving at a manufacturing rate, we just have to be patient and pleased with what they've already been able to engineer. 10 years ago most of our displays were still 1024x768.
Agreed... Purposely designing a product to be heavier on system resources, costlier to produce, and provide no benefit, because you can trick consumers into thinking it is better and buying it, is an insult to engineering.
1080 looks good on my 60" when playing a game or movie, but switch to desktop mode and it looks blown up and god awful. Large Displays will benefit from 4K.
***** cinema is 8k..... or 4k 3D
***** in my country cinema are 8k or 4k. or 5d 2k.
***** there are 16k tv`s but there are not 8k movies...... genius. there are 8k games like gta 4. but there are not 8k movies
I realy rofled when I found that 4k was comeing out im mean come on retina to me is 240p at 10 feet away and 360p at arms distents sorry but any thing higher then 360p is point less I realy never bought any thing but toob tvs Ive look at hd flat tv and found all they were, were just more exspensive tvs and im happy with my toob tv sorry if that make any one mad but im realy happy with my toobs. + any thing higher then 360p chokes my bandwith so yeah. don't even bother using it even trying in youtube.
stickfigure31 To start off, TH-cam makes videos which you are viewing at lower resolutions look horrible, and more blocky than they really should be, so TH-cam is not a fair comparison by any means.
Also, read this: support.google.com/youtube/answer/1722171?hl=en For a "standard quality" upload of a full HD video, TH-cam reccommends a bitrate of 8,000 kilobits a second, with is similar to a DVD quality movie. Also, get a blu-ray player/drive if you don't already have one, and compare the image quality you are getting from both a DVD and Blu Ray of the same movie. DVD's have a capacity of 4.7 GB per layer, and 25 GB per layer for blu-ray. So in addition to the higher resolution of the blu-ray, you are also getting a higher bit-rate.
One (?) hyphenated word: post-processing. Easier than green screen for sure (though somewhat depends on the location of the mark, I'll admit)
I loved this video! GG Linus!
when i play a game and i see a landing leg in the distance. i see a landing leg. but when i look really close to the screen i see a line of pixels and not much more. what is this effect?
However no Adobe RGB in their displays, correct?
Btw, a techquickie about colors would be nice; explaining gamut, color space, etc. I don't understand those graphs you see in TV- and monitor-reviews at all.
Beyond 300ppi it's fairly redundant. It's like the size of the screens themselves, they've become ridiculously massive. If they made Zoolander now they'd use a paving slab instead to make fun of the size of phones rather than the TicTac sized thing they used lol.
Note that ppi is never measured diagonally.
Patrick Proctor All the numbers I have seen have been measured in a right angle line, and I have been obsessing about these for quite a bit. Also you will get a greater PPI by doing it that way. A one inch line will cover less pixels diagonally than it will in a right angle.
does that use SLCD3 like the htc one? I have always been critical about colour performance rather than anything. To the point where I Game on a SA650 monitor (Its a SLOW va panel, response time Would probably be 10ms+)
So far some of the most accurately displays I ever saw would be HTC one and the iphone 5 but I don't know about the DNA.
But my question after watching this is, is it worth it? Like, buying retina stuff, is it worth the hype?
This is why I hate when the commercials for stuff like the Ipad brags about having a "retina" display! God damn it from the distance you use you're tablet pretty much every tablet has a "retina" display! There's nothing special about it...
I didn't think the LG G3 was going to look so much better then my Nexus 5 which already has 445 DPI. So that also pushed me to get the Yoga Pro 2 with the 13.3" 3200x1800 screen, resulting in a screen that looks perfect just 24 inches away (average typing distance). Its weird that when i get 16 or so inches it bothers me that i can see pixels. And i even notice people look at the screen not believing the text looks so clear. 300 dpi limit is bull shit, maybe if ur in a real hurry, blind, or drunk... i personally think 600 is the real limit if you have good eyes.
Linus, please do a "Cores vs Threads" video