How Samsung’s QD-OLED hybrid might tackle LG for TV supremacy

How Samsung’s QD-OLED hybrid might tackle LG for TV supremacy


Samsung sells LCD-based QLED TVs immediately, and a brand new funding means it’d promote OLED-based TVs sooner or later.

Sarah Tew/CNET

There are two fundamental TV applied sciences in the marketplace immediately: LCD and OLED. LCD-based TVs are far more widespread and widespread as a result of they’re inexpensive and simpler to fabricate. OLED TVs have higher image high quality however price more cash. LCD TV-makers use a wide range of enhancements to enhance picture high quality, one among which is named quantum dots.

Samsung has been promoting LCD TVs enhanced by quantum dots for the previous couple of years beneath the QLED model, and in CNET’s exams they do have improved colour in comparison with different LCD units. However they nonetheless do not match the general picture high quality of OLED, primarily due to OLED’s unimaginable distinction and off-angle efficiency. And for the time being just one firm makes big-screen OLED show panels: LG.

However what if you happen to might mix the advantages of quantum dots with the distinction ratios of OLED? It could would create a type of hybrid TV with, doubtlessly, image high quality higher than any present TV. 

Samsung just lately introduced it is constructing a manufacturing facility to just do that:

Samsung Show will make investments 13.1 trillion gained by 2025 to construct “Q1 Line,” the world’s first QD show mass manufacturing line at Asan Campus. The brand new line is scheduled to begin manufacturing in 2021 with an preliminary 30,000 sheets (8.5 generations) and can produce an enormous QD show of 65 inches or bigger.   

That is an funding of round $11.1 billion. Whereas Samsung calls this “QD show,” it is not electroluminescent, aka “direct view” quantum dots. That expertise continues to be a number of years away. That is going to be a QD-OLED hybrid.

On the announcement occasion, South Korean President Moon Jae-in additionally referenced Samsung’s rival LG with regard to Korea’s place in world TV manufacturing: “It is very important preserve the highest spot of the worldwide show market with game-changing applied sciences,” Moon stated. “Following LG Show’s three trillion-won funding in massive OLED panel manufacturing in July, Samsung Show’s newest funding plan brightens prospects additional.”

Samsung claims it needs to begin manufacturing in 2021, which would possibly imply we’ll see some TVs for the vacations that 12 months. Extra possible, nevertheless, we’ll see prototypes at CES 2022.

What does this all imply? Samsung hasn’t but replied to our request for extra info, however Nanosys, an organization that makes quantum dots, has shared some particulars on how the expertise will possible work.

How QD-OLED would work


A simplified diagram of how a QD-OLED hybrid would work. A blue OLED materials would create all of the blue gentle, plus the sunshine power that pink and inexperienced quantum dots would use to create pink and inexperienced gentle.


Combining quantum dots and OLED might play to the strengths of each applied sciences. The concept with any TV is to create pink, inexperienced and blue gentle. LED LCDs with quantum dots, like Samsung’s present QLED TVs, use blue LEDs and a layer of quantum dots to transform a few of that blue into pink and inexperienced. With the present model of OLED, yellow and blue OLED supplies create “white” gentle. In each circumstances, colour filters let go solely what colour is required for that particular subpixel.  

The concept with a QD-OLED is to simplify these designs into one, by utilizing OLED to create blue gentle, after which a quantum dot layer to transform a few of the blue into pink and inexperienced.


How Nanosys envisions QD-OLED will work. Samsung’s model will possible be related. A blue OLED layer creates blue gentle, which passes via a quantum dot colour conversion (“QDCC”) layer that converts a few of that blue into pink and inexperienced. Due to how quantum dots work that is considerably extra environment friendly than utilizing colour filters.


There are a lot of benefits to this methodology, in idea. By utilizing just one colour or materials of OLED, the manufacturing prices go manner down because it’s simpler to construct. LG, for example, makes use of solely two OLED supplies, blue and yellow, for each pixel throughout your entire show. Gentle-blocking colour filters create the inexperienced and pink. QDs have practically 100% effectivity, considerably higher than filters, so in idea the hybrid TVs might be a lot brighter. Plus, there’s the potential for even wider colour gamuts in any respect brightness ranges.


On the left, the present model of OLED. “White” in LG’s case being a mixture of blue and yellow OLED supplies. On the best, how QD-OLED will possible work, utilizing solely blue OLED, after which changing a few of that with pink and inexperienced quantum dots.


As a result of every pixel may be shut off, these hybrid TVs may even have the unimaginable distinction ratios that OLED is thought for.

Since blue OLED supplies nonetheless age sooner than pink and inexperienced, having your entire panel one colour means the TV ages extra evenly with no colour shift. Holding that getting older to a minimal, and thereby having a TV that does not appear dim after a number of years, is without doubt one of the key manufacturing points. That is very true on this HDR period of utmost brightness ranges.


A really, very closeup view of a QDCC layer. Behind this might be both blue LEDs, or blue OLED. Both manner, the colour that comes out is pink, inexperienced and blue.


Whereas this new Samsung plant is specializing in TV-size shows, the expertise might work in phone-sized shows as effectively. Since Samsung does not appear to have any difficulty making wonderful small OLEDs, I would be shocked if it is in any rush to upset that market with one thing as superior as this. Additionally, Samsung’s phone-sized OLEDs use pink, inexperienced and blue OLEDs in comparison with LG’s blue-yellow. Samsung tried to make RGB OLED TVs and simply could not make them worthwhile.

Into the long run

It is doable, perhaps even possible, that LG is engaged on the same QD-OLED hybrid. Proper now it is not saying (we requested). It’s, nevertheless, the logical subsequent step for OLED earlier than no matter subsequent technology of TV tech arrives. 

And what would possibly that be? Effectively, the quantum dot of us appear to assume direct-view quantum dot shows are just some years off. These electroluminescent quantum dots, or ELQD, would have all the advantages of OLED, all the advantages of QD and not one of the problems with LCD or the damage and longevity issues of OLED. A really promising tech certainly.


The last word quantum dot show. No extra LCD in any respect, simply direct view, electroluminescent quantum dots. That is basically how OLED works, however as a substitute of natural gentle emitting supplies, it is quantum dots.


Then there’s the query of what Samsung will name this new QD-OLED expertise, because it’s already branded its present TVs as “QLED.” It is a secure wager it will not be calling them OLED something, since that is LG’s “factor” and Samsung is already making an attempt to make use of the concern of burn-in to trash-talk the expertise. It is value noting the Samsung division that sells TVs, Samsung Electronics, is completely different from Samsung Show, the division that might be making these QD-OLEDs.

The opposite new TV tech on the horizon from Samsung and others is MicroLED. This has lots of the similar advantages because the QD-OLED hybrid, however does not muck round with these pesky organics. That is even farther sooner or later, nevertheless, possible someplace in time between QD-OLED and direct-view quantum dot shows. Oh, and MicroLEDs use quantum dots too. They’re a captivating expertise with makes use of far past TV screens.

Acquired a query for Geoff? First, take a look at all the opposite articles he is written on matters like why you should not purchase costly HDMI cablesTV resolutions definedhow HDR works and extra.

Nonetheless have a query? Tweet at him @TechWriterGeoff, then take a look at his journey images on Instagram. He additionally thinks it is best to take a look at his best-selling sci-fi novel and its sequel

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