HomeНаука и техникаRelated VideosMore From: Marques Brownlee

Quantum Dot TVs: Explained!

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Quantum Dot TVs: Making a splash at CES 2015! Video Gear I use: http://amzn.com/lm/R3B571T7PT4PWM?tag=m0494a-20 Intro Track: Deadmau5 - Slow Down, Start Over ~ http://twitter.com/MKBHD http://google.com/+MarquesBrownlee http://facebook.com/MarquesBrownlee http://facebook.com/MKBHD http://instagram.com/MKBHD
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Text Comments (1389)
Joseph Pekkar (6 months ago)
You are one of the best human beings on this earth! People like you make this earth a better place!
Disabler (7 months ago)
I cant wait for the new propaganda apparatus! Hopefully it comes with even more spy features, yay!
Qflick (8 months ago)
If any tv is better than your current one, stfu, sto whinging, and buy the fucker. Once u have your new tv in your house u won't give a fuck about any other tv for the next 7-8 years.
Sonu Nath (8 months ago)
samsung is best no doubt..
Sewa LCD (8 months ago)
Nice vide9
Hartmut Berger (9 months ago)
Braunlee did Not explain how the quantum dots create light, i am dissapointed.
Aman Dubey (9 months ago)
5 million subscriber congrats advance
Daniel Yamamoto (10 months ago)
So OLED is better
camelCased (11 months ago)
So, they are cheating again, its QD backlight, but not genuine QD displays. But if/when real QDs emerge, they should be superior than OLED because OLED is prone to burn-ins and organic-related issues (yellowing etc.).
Andrei Despinoiu (1 year ago)
Awful name. Well, awful name for a backlight technology. It makes it sound like DPI (dots per inch) is so much better. It's not. It's just the backlight... Disappoint, son.
CJ S (1 year ago)
OLED is terrible..pixels burn out..don't turn on and off..crap..wait 6 yrs
CJ S (1 year ago)
Tech Guy I meant wait 3 4 yrs for OLED if too expensive and they'll get better, I'm not sure if IR/burnin will always be a problem..LG panels is like a lottery..a new tech thats beautiful i don't trust right now, not enough data, but we getting there..i have a QD edge-lit 9500..nice pic, just not OLED and is samsung insane? 3500 hun for flagship 9800 local dimming? That's more than the b6 c6 LG OLEDs....I'd venture to bet QLED will be emissive within 2 3 yrs..can't stay with backlight LCD tech if OLED will be future..again if QLED goes emmisive, whole new ballgame..IDK what u mean you can buy a QLED now..its still a LCD.
Tech Guy (1 year ago)
Why wait 6 years. Quantum dot TVs are already available
Harsh Agarwal (1 year ago)
Who is watching this video at the time of CES 2017
Renato Alas (1 year ago)
Great explanation!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Rohan Agrawal (1 year ago)
let's see apple top this!
jonathan oxlade (1 year ago)
what beats oled holocaust holographics
Tom Da King (1 year ago)
It's funny how lg uses oled in there tv's but not in their phones and Samsung uses oled in their phones but not tv's....weird!
Tom Da King (1 year ago)
MKVALI yeah that makes sense.......and I'm also guessing that Samsung has a patent on smartphone oled display production and the same with lg's large oled panels.
MKVALI (1 year ago)
to produce an oled screen is expensive by cutting them up and selling them in the forms of smartphones samsung creates insane profit lg is trying to make oled in tv popular but is taking risks but the eventual future turnover is going to be massive differnent company's different production lines different strategies
dsouzand (1 year ago)
i dont trust Samsung they always lie about their refresh rates
Fresh Towels (1 year ago)
so basically an oled that requires less filtration through say a phosphorus layer which makes it more efficient. got it ! thanks man. someone add to my comment if i didn't summarize it properly.
TheMikeBase (1 year ago)
why the fuck are you standing on a balcony with traffic in the background...
John Balladear (1 year ago)
Simply explained and understood. Thank you.
Albert Gérard (1 year ago)
TL; DNR - No one cares about Qdot
ashish rai (1 year ago)
hey can u tell me top Quantum dots manufacturing companies
Tech Guy (1 year ago)
Adrian Jonathan (1 year ago)
Samsung manufacture their own panels ....so yeah.
Since 2013 Sony offers Quantum Dot displays - Trilluminos. No crappy Samsungs...
johneygd (1 year ago)
Meeeehh i say it's pure bullshit,that's what they alway's do say, each year, our technology is brighter,or because of led,added yellow,laser tv, or a new color spectrum to it. How much brighter could it ever be? It drives me very insane when they do this every year and really keep trying hard to suck the attention out of our buttock. I have enough about it,just a miner improvement,who cares about that???
Dang man, how different this turned out. The SUHD quantum dot and HDR has changed the game
Miraj Ali (1 year ago)
a qd display on a phone
Tech Guy (1 year ago)
Yep, Only on Xperia Z series and X series Phones
James Machuga (1 year ago)
why is emissive QD displays taking so long?
Tech Guy (1 year ago)
It's already available since 2013. Search for TVs with Triluminos Display
afhdfh (1 year ago)
Actually, the technology IS super insane. People are using it for filtering right now but quantum dot technology can emit light on its own, too. So they could create screens that are even better than OLED screens in the future.
RAMA PRASHATH Ram (2 years ago)
what is the difference between quantum dot and nano crystal? Are they same or have some difference?
Dark Garison (1 year ago)
Semiconductor nano crystal is a quantum dot. If it is of an appropriate size AND electronic structure such that it's electronic/optical properties drastically change with size in the size regime of about 1-100 nm then it is a quantum dot.
monstercolorfun co (2 years ago)
I am very excited about 4D conical TV's, and 4D windmill ones.
Evi1M4chine (2 years ago)
You didn’t explain _shit_. You didn’t even go into the physics.
Evi1M4chine (2 years ago)
Why don’t they just use quantum dots as the pixels instead of background lighting?
Dark Garison (1 year ago)
Semiconductor nanocrystals are a fairly new technology. If you mean "use as the pixels" to mean why don't they just have the quantum dots emit light from an electrical bias instead of absorbing high energy light and emitting low energy light then it's because you run into efficiency problems. It's relatively easy to get them to emit by shining higher energy light on them. It's somewhat difficult to get them to emit by applying an electrical bias because of recombination issues (you excite an electron in the quantum dot, but it goes back to the orbital it was excited from without emitting the photon you wanted).
Kenneth Kreindler (2 years ago)
Whats up with the sound?
Sadjad Ali (2 years ago)
Hi what do you guys think about the LG 55UF7709 ?
purvesh shah (2 years ago)
No one breaks it down better than u.. Awesome video.. 👍 👌 😊
Alfalfa Male (2 years ago)
THE ORIGINAL GAMEBOY had quantum dot technology.
PMJ Cadiz (2 years ago)
At 2:20, what phone is that
Neelay Talwalkar (2 years ago)
Oneplus One I'm guessing, this video is 11 months old so it can't be the Oneplus Two.
DaylightRobbery1824 (2 years ago)
What are the composition of these QDs? The ones I've worked with in the lab are typically very toxic, (ie: CdSe and PbTnS) so I'm curious about this. Still, super awesome.
Brett Ross (2 years ago)
Man I've been watching these videos since 10:00 pm and I was supposed to be in bed at 11:00 pm but here I am at 4:05am lol good job man love the videos!
Pixus (2 years ago)
"Is this new.... No, the idea has been around since 1990s" So did they had LCDs/LEDs back then?
Giannis Rigas (2 years ago)
What is that on the top left moving??? 2:02
Giannis Rigas (2 years ago)
Also it comes up when Marques speaks about dots!! LOL
Rob Schmitt (2 years ago)
I think the colors from an LCD/QuantumDot Screen are much more realistic than Amoled. They a more sharper and detailled than OLED in my opinion. But Amoled has much better blacks. Huch much electricity saves a Quantum Dot compared to an LCD?
The Progress Report (2 years ago)
I got the SUHD Samsung 55" tv. It looks awesome, but I had a 1080p LCD screen before; so there is no frame of reference for me.
Antonio Jorge (2 years ago)
Its much more complicated than you make it out to be. It relies on Quantum Mechanics, it uses artificial atoms to produce light. If you YouTube search "Artificial Atoms" you won't find much because this technology is so freakishly new.
Dark Garison (1 year ago)
I disagree that there is nothing else to learn about the phenomenon as I am a chemist researching quantum dots for my PhD. Not all materials interact with light in a well-understood way, especially materials with a highly covalent lattice. Also, it isn't perfectly well understood how different shapes of nanocrystals would effect their quantum confinment effect. How do two dimensional materials and one dimensional materials compare to zero dimensional materials in terms of the quantum confinement effect? Surface chemistry plays a huge role in the electronic structure as well. Also, nucleation and growth are essential to understand how to synthesize these particles. This is far from the engineering and materials research only phase.
Antonio Jorge (2 years ago)
I see where you're going but I just wanted to mention how impressive it is that we can make TVs with this technology, even though they probably won't last as you said before.
soylentgreenb (2 years ago)
+Antonio Jorge That's the point. It's a well understood phenomenon. There is nothing more to learn about the basic science of the phenomenon itself; there is "only" engineering and materials research. It took 4 years to go from the first discovery of nuclear fission in 1938 to the first nuclear reactor with a self-sustaining chain reaction. Nuclear fusion was discovered in 1929 and it was both more intuitive and easier to understand than fission and had an equally obvious potential for weaponization. We still don't have self-sustaining fusion reactors; only the explosive, one-off kind called thermonuclear bombs. Nuclear fusion is 30 years away. 30 years ago, nuclear fusion was 30 years away. In 30 years it will probably still be 30 years away. At any given time there is several dozen competing technologies contending to replace the dominant technology. What makes quantum dots the winner and why now? Regular inorganic LEDs still aren't used in display technology (only as a backlight for an LCD). Sony was trying (crystal LED). Despite having excellent picture quality and life the technology was shelved. Engineering problems killed it. SED and FED used a tiny electron gun for each red, green and blue subpixel. It worked; it was demonstrated. Engineering problems killed it. CRTs are an excellent fit for displaying analog signals. There is no memory or digital processing. The beam is just constantly sweeping and is modulated in real time by an analog signal. Digital media and processing made LCDs viable. I remember when LCDs started replacing them. The image quality was utter shit; it didn't matter. They died in droves from capacitor plague; it didn't matter. Plasma had better image quality; it didn't matter. LCDs were easy to make, easy to transport and easy on the wallet; that mattered more. OLEDs, the kind of LEDs actually used in displays as picture elements, still have not caught on for anything but tiny displays. Why? It's only an engineering problem. There is no compelling reason to think QDLED, OLED or some variant of crystal LED will take off now or in the near future. (note: these quantum dot displays shown here are not QDLED displays; they are regular IPS LCDs backlit by a quantum dot light source)
Antonio Jorge (2 years ago)
"Discovered" and still 30 years is not that long. The first LED was invented in the 1920s and wasn't used in TVs until almost 100 years later.
soylentgreenb (2 years ago)
+Antonio Jorge Quantum dots were discovered in 1981. They are not new.
Dennis Dowd (2 years ago)
In someways all these new technologies are wasted on me: 1) I am color blind 2) I don't have any TVs in my home.  I haven't had a TV for 27 years, instead I read and of course I have computers everywhere, so who needs a TV?  Again another great video and explanation.  Thanks!
Typhoon792 (2 years ago)
Everything just needs to go OLED.  All screens, everywhere, on everything.
John Wick (2 years ago)
Love your videos man.....I mean who dosen't? :)
Jimmy Gangster (2 years ago)
I'm honestly starting to lose interest in this "latest and greatest technology" crap.. We're getting all of these new displays that can do this and can do that and have this much quality. But as far as I'm concerned, 4K has been here for YEARS and it has yet to be implemented into anything other than video games and a handful of movies if any. Hell most cable TV still runs at a terrible 480p considering the fact that HD has been a thing for about a decade now if not longer. I feel like the products that can handle it are advancing but the things that make those products worth even having in the first place are not moving at all. I don't feel the need to go waste $2000+ on a TV that isn't even supported but by a number of things that I can count on one hand. Then when you factor in the time that I'm even going to be able to enjoy these things which is only a couple hours a night if that then I just don't see the point. I'm still happy with my 3 year old 1080p lcd TV.
CoryandStuff (1 year ago)
Now add HDR to that list :D
Kunal Haria (2 years ago)
So OLED is better than quantum display? And what is the life of both of these displays?
Hugo Shepherd (2 years ago)
I live in England (UK) which means I don't get to see the new Apple kit unless I go to the WWDC online on my MacBook Pro, iphone 5S or iPad Air 2 (in Gold) - I love holding this large gold brick - I've also just subscribed to the Paper edition of Macworld UK - so I'm looking forward to how Macworld does things different to my other Mac Publication - Mac Format. I've now Discovered Macworld UK on Youtube too so now I'm pretty much fitted out - Yay! :)
Cheney Xie (2 years ago)
Xperia z3 z2 Are using this technology already....
nikhil chandhra (2 years ago)
Hey bro, why don't you make a detailed review of all the display types currently in the market... It would be great.
not available (2 years ago)
Ok can you help me out here. I am going to purchase a new. TV. I can't decide between. A 4k tv or oled tv. Which is better or will not get dated as fast
Taliban King (2 years ago)
volaris90210 (2 years ago)
Happened this year
Jake Lam (2 years ago)
Doesn't the LG G4 use Quantum Dot technology in it's display?
Shemar Forbes (2 years ago)
Now look at the LGG4 using a quantum dot display.
vassillios (2 years ago)
just a lame marketing campaign to distract people (and investors) from the fact that Samsung hasn't been able to get their full size OLED panels on the market. the extra contrast you get with a quantum dot panel vs a conventional lcd is barely worth talking about compared to the massive leap you get by going from LCD to OLED, and the whole "better colors" thing is a complete joke, considering 4:4:4 television content still doesn't exist.
soylentgreenb (2 years ago)
+vassillioss LCDs are an existing technology with a huge manufacturing base. Slapping on some QDLED backlighting is just a matter of retooling, which makes for cheap displays. Cheap usually wins. CRTs are still comparable in image quality to LCDs and when they were replaced they were so far ahead it was ridiculous. They had good black levels, low persistence (that's huge, especially for gaming), great colours and native support for various odd resolutions without crappy image scaling. It took 10 years for LCDs to even get close after they stopped making CRTS. That's the power of cheap. OLED will be the technology of the future, for the forseeable future, until it won't be. Once LCDs are finally discarded, it is anyone's guess wether OLED will be the winner, or if it will be anything between quantum dot displays (real ones, not just a backlight for LCD) to a VRD that projects a digital lightfield directly into the eye. Whatever it will be, it will be something that can be made really cheap.
electrobussterr (2 years ago)
Apple's retina display is much better
Shellyman Studios (2 years ago)
+electrobusster Nice joke.
Sean Ross (2 years ago)
Very good video, you explained the technology well and didn't go overly in depth about it which I feel is a good thing. I can't wait for OLED TVs to become affordable.
bashar hag rachid (2 years ago)
Here we got it on the lg g4
Talha A. B (2 years ago)
HAHAHA !! u said its not possible this year for mobile phone and boom 3 months later LG already did it !!
Adnan Talla (2 years ago)
"will we ever see quantom dot displays in our smartphones, too? i would say yes, mabe not this year or anything..." and then you  show LG phone.. lolz..
npt (2 years ago)
Just checked LG G4 display. Dude, stop predicting future. :o
Relebogile Chiloane (2 years ago)
I guess you were wrong +MKBHD the LG G4 has Quantum technology in its display and we are seeing it in 2015.
Hari Govind (2 years ago)
And LG made it possible to put in a smartphone in a few months time. Kudos to the manufactures who incorporate latest tech into gadgets.
holi6709 (2 years ago)
Okay mkb said we probably won't see quantum dot technology in phone this year..but..well..the lg g4 does have it?
Ziko Chaoui VII (3 years ago)
4K VS Quantum ???
David Vanity (3 years ago)
The lg g4 is the first to have a quantum display on there phones. Props for LG
soylentgreenb (2 years ago)
+David Vanity No, it isn't. That's an LCD with quantum dot backlighting, like all other "quantum displays" currently in production. Hence why it has all the flaws of an LCD.
Timothy Tucker (3 years ago)
What u think about ubox live
HaxxorElite (3 years ago)
so its pretty much black or white? CHOSE PPL!
christos christou (3 years ago)
i heart about flexible battery aluminium with graphete can we a explained video about it ??
Bryan tehking (3 years ago)
Nah i will stick with 1080p.
gendo1 (3 years ago)
Thanks for posting!
Dhruv Vyas (3 years ago)
Are you going to review the ubuntu phone?
Pasi7 (3 years ago)
Geekyvijay (3 years ago)
I never ever gonna understand why they are adding such a fancy words "QUANTUM" ,,,bcozz we consumers never gonna understand that,,
hunter borman (3 years ago)
Those TVs look like my laptop screen.
Per Marius Nerby (3 years ago)
you dont give a f bout yo fans
cp070476 (3 years ago)
Any tv that uses a 'white' light back lit technology will never produce reference blacks.. That's why the cinema will never match plasma/ OLED in contrast performance. It's a image projected onto a 'white' screen.
MrChunky22 (3 years ago)
WHY DO THEY DO THIS? THIS ISN'T A QUANTUM DOT. why do they lie? This has nothing to do with quantum ness... I'm so sad now.
sexydanny21awesome (3 years ago)
To everyone watching this video please stay away from SUHD TV's! All of 2015 models only have 60 HZ including the full array 65 inch! Your best bet is to go for a Sony that uses same tech in their TV's! Plus Sony TVs have 120 HZ! One more thing the Samsung  65 inch full array SUHD costs 6,400 dollars! 
Muze42 (3 years ago)
+hunter borman 60Hz TVs alternate between 3 and 2 refreshes per frame because 24 doesn't divide evenly into 60. 120 is a multiple of 24, so it can show 5 refreshes per frame without alternating. Before the 120Hz craze, they advertised 72Hz ones as "cinema" TVs, but they couldn't show 60fps content properly for the same reason 60Hz can't show 24fps properly. The refreshes per frame don't really matter, but having every frame's display time be equal makes a difference. 240Hz is mostly just marketing buzz, the only actual advantage is that it can display 48fps and 80fps without uneven frames. ...so The Hobbit will look better on 240Hz.
hunter borman (3 years ago)
For gaming yes, but I watch my movies at 24FPS like a normal person.
sexydanny21awesome (3 years ago)
+hunter borman 120 HZ gives you a smoother experience when gaming and watching movies. The bigger a TV is the more HZ you actually will want.
hunter borman (3 years ago)
+sexydanny21awesome Its a TV why would you want 120Hz?
Kevin Chan (3 years ago)
Having taken a quantum mechanics class last semester, my heart broke a little when you called quantum dots a "physics trick" :'( That particle in a box model doe...
sexydanny21awesome (3 years ago)
Well Samsung SUHD TV's are horrible their is no doubt about that they come with 60 HZ! All 2015 models are 60 hz so yeah they are not special at all! The Sony TV's are using same tech and use 120 HZ!
Corey Bean (3 years ago)
Anyone else not seeing some of your subscriber's videos? Its been happening to me lately, I didnt see this video on my subscriptions feed when it was released...
John W2008 (3 years ago)
cool thanks MB something new i learned today 
ThricetheFun (3 years ago)
+Marques Brownlee You should do something simple, like WI-FI Explained, especially with the 2.4 vs 5ghz bands
salasbanditos (3 years ago)
Wow, this dude video has 2160p holy cow, its lagging like crazy. Even in 480p it looks like hd (720p)
Laughing Dragon (3 years ago)
2160p? 4k this video looks awesome in 4k.
Jason Kang (3 years ago)
Marques, I was wondering what program do you use to get that text effect at 0:10? With the blurred background but transparent text? Thanks!
TheReck (3 years ago)
Anyone else watching this in pure 480p sdtv definition
Rob The Plumber (3 years ago)
soylentgreenb (2 years ago)
+Rob The Plumber OLED is one of those technologies that is the future and always will be. I think real quantum dot displays (no, an LCD backlit with quantum dots does not count) will eventually get here before OLED takes off.
Dilip Tien (2 years ago)
+sexydanny21awesome prices will always drop in the future
Rob The Plumber (3 years ago)
+sexydanny21awesome It always is :D
sexydanny21awesome (3 years ago)
Oh yeah well the LG 65 inch 4k OLED TV costs 9 grand so future is too expensive! HAHA!
Tengku Elzafir Habsjah (3 years ago)
Arun Prakash (3 years ago)
Please explain the use of multiple monitors.
Gilga (3 years ago)
You said you don't have people that shoot your videos but you didn't film this, there's someone with a microphone and another with the camera
Why the *beep* is it called Quantum Dot when it has absolutely nothing to do with quantum mechanics!?
Dark Garison (1 year ago)
It does have to do with quantum mechanics. They use nanoparticles as a downconverter. They are called "quantum dots" because these semiconductor nanocrystals behave like artificial atoms at that size regime.
Sukrino Rahman (3 years ago)
Thank you for the explanation. Appreciate it. Now, I can tell the salesman off about this Quantum Dot thing.
Anant Mehrotra (3 years ago)
Hey pal can u do a detailed video on oled vs ltps lcd i mean which is better lcd or thr oled plz rply
heartSLB (3 years ago)
You guys talk a lot about TVs but you don't watch them. What is up with that?

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