QD-OLED TV: everything you need to know about the game-changing new TV tech

Asia's Tech News Daily

Sometimes it seems like the world of flatscreen displays is dense with terminology that is deliberately created to mislead. From endless acronyms that look and sound deceptively similar but have totally different meanings or old technologies that get rebranded with new, more jargony monikers.

QD-OLED TV: everything you need to know about the game-changing new TV tech
© Provided by What Hi-Fi? Samsung QD-OLED

Developed by Samsung, QD-OLED is one of the newest and most exciting kids on the flat panel block. For once, its name represents exactly what it is: a combination of the Quantum Dot (QD) displays, endorsed by market leader Samsung as well as the likes of Hisense, Vizio and Roku, and OLED technology, of which Samsung’s arch-rival LG is the dominant player, as the sole supplier of large OLED panels to other manufacturers.

The two screen types have different strengths and weaknesses, and combining them could potentially yield results greater than the sum of the parts achieving that holy trinity of TV manufacturing: vivid colours, high peak brightness without light bleed, and dark, saturated blacks.

But how will it work? When will it be available? And why has Samsung, which has been an avid anti-OLED campaigner until now, suddenly done a U-turn? We’ll try to answer all these questions below but first, since QD-OLED is a hybrid, let’s recap the individual components before tackling the whole.

OLED vs QLED: which is the best TV technology?

How does OLED work?

OLED (Organic Light-Emitting Diode) is a type of display that uses an organic carbon-based film through which two conductors pass a current, causing it to emit light. To produce an image, an OLED TV combines blue and yellow light from OLED sources to create almost white light. This is then passed through a colour filter made up of red, blue and green subpixels. 

Unlike traditional LCD TVs, which rely on a separate backlight that’s then passed through a layer of pixels, each individual pixel in an OLED can take care of both brightness and image creation. Because each pixel is its own light source and can be completely blacked out if need be, this means that a bright pixel can appear next to one that’s black with neither impacting the other, creating the exceptional overall contrast for which OLEDs are rightly renowned.

And that’s not the only benefit. Because the image doesn’t need to pass through an LCD matrix, viewing angles are wide, while the overall build of an OLED TV is thin and light because of its simple structure.

The downside to OLED TVs is that they struggle to reach the same peak brightness as even an average backlit model, as each pixel is limited by its size in the amount of light it can produce and by energy absorption from the colour filters. To address this, LG started using a WRGB pixel structure – adding a white subpixel to try and increase brightness levels. Unfortunately, this has drawbacks and can wash out the colour of the other subpixels. Also, as the organic material in OLEDs is not permanently stable, its lifespan decreases at an inverse rate to the amount of brightness it is made to produce. So pushing the white sub-pixel could shorten your TV’s life expectancy. 

A slightly more controversial issue facing OLEDs is that the organic nature of the panel means it’s potentially susceptible to image retention and even burn-in. This is not the consistent, widespread problem that some (including Samsung) portray it to be, though, and we’ve never experienced it with any of the OLEDs that we’ve tested or that have been used at home by our reviewers. But it’s still understandably a concern for some buyers, and companies take it seriously enough to build in features to reduce the risk of it happening.

As we said above, LG is the only manufacturer of TV OLED panels. It uses these for its own sets, of course, but it also sells panels to other manufacturers such as Sony, Panasonic and Philips. After a quick foray into the world of OLEDs in 2013, Samsung has since focused its attention on developing rival technologies such as QLED. The company has been known to deliberately stoke consumer doubts over the reliability of OLEDs, even going so far as to create a TV burn-in checker tool and encouraging affected customers to trade in their OLED for a QLED. 

How does QLED work?

QLED stands for Quantum dot Light Emitting Diode and was developed to try and replicate the very best picture quality features of OLED (super-deep blacks, amazing contrast, wide viewing angles) along with far superior brightness and colours. A QLED uses an LED backlight, a layer of quantum dots, an LCD matrix, and a colour filter to create an image.

The quantum dots in QLEDs are tiny semiconductor particles only a few nanometers in size. The dots convert white light into coloured light without loss of energy. The resulting colour depends on the size of the quantum dot itself – larger ones give off light at the red end of the spectrum, smaller ones at the blue end.

In the future, engineers hope to make these semi-conductors self-emissive, like OLED and MicroLED technology but, right now, they rely on being lit from an external source.

The advantage of quantum dots is that they offer significantly improved colours over both traditional LCD and, arguably, even over OLED. At the same time, the backlight and energy efficiency of the dots creates brightness levels that OLED can’t get close to. However, it still can’t achieve the deep blacks of an OLED as light can bleed from white areas to bordering dark pixels.

Samsung has sought to increase the contrast of its models by shrinking its backlights and switching from standard LEDs to Mini LED backlights for its premium ‘Neo QLED’ TVs. As the name suggests, these backlights use much smaller LEDs packed in far higher quantities for more independent dimming zones. These LEDs are so tiny that they resemble grains of sand, but for the ultimate in accurate dimming, it seems you can’t beat a pixel-sized backlight.

How does QD-OLED technology work?

In QD-OLEDs, a stack of blue OLED material is used to illuminate pixels that contain red and green quantum dots.

Each OLED pixel is divided into three subpixels: a blue subpixel consisting of the original blue OLED material, a red subpixel with red-tuned quantum dots, and a green subpixel generated by a green-tuned quantum dot. These can then be combined to create true white light.

Unlike when using filters, the colour transformations performed by the quantum dots lose virtually no light energy. Using this method of OLED illumination, the new QD-OLEDs are said to appear brighter than current OLED TVs while still maintaining the ability to be fully dimmed. 

So why don’t OLEDs just use red, blue and green emissive material and cut out the brightness sapping filters? This is mainly due to the practicality of manufacturing true RGB panels at the sizes required of modern TVs. In fact, Samsung’s only OLED, the S9C, tried to do this but was deemed commercially unviable before being quickly retired. 

If successful, QD-OLEDs could potentially offer the contrast of OLED and the brightness and vibrancy of QLED.

Samsung says that its QD-OLEDs with 4K resolution will have about 8.3 million (3840×2160) light sources that can be controlled separately, enabling a high contrast ratio of 1,000,000:1 and offering enhanced image detail and better HDR performence.

In terms of colour, the company claims that QD-OLED will offer one of the broadest colour expressions among its current crop of displays. Based on the BT.2020 specifications, QD-OLED will express a colour volume above 80% as well as apparently delivering 0.0005 nits blacks and 1000 nits peak white.

What other benefits will QD-OLED offer?

By omitting an LCD layer, display response times, viewing angles, and screen reflection should be improved compared to traditional LCD displays. Samsung also claims that the screen will offer a 40-50% reduction in “harmful blue light” as the blue OLED material will primarily produce light with a wavelength longer than 455nm.

Have Samsung fixed the problems with OLED?

After years of deriding OLEDs, how will Samsung respond to questions of the reliability of the technology it is now adopting?

Reports indicate that by using a stack of three layers of OLED material, Samsung hopes to distribute the burden of brightness production and prolong the QD-OLEDs life expectancy far beyond that of a normal OLED. But there are certainly other factors to consider.

As to how Samsung will approach these thorny issues, we can only speculate. The company may point to its use of OLED displays in phones as proof it has long embraced the technology, or it may just maintain it has now solved all of the problems with LG’s large OLED panels with this new hybrid, offering all of the pros of QLED and OLED and none of the cons. 

But for now, it seems that Samsung will just avoid using the term OLED at all. A recent post about the new screen technology on Samsung’s website refers to the organic material as the ” blue self-luminescence layer” and in side by side comparisons only mentions traditional LCD displays. Moreover, the company appears to be eschewing the QD-OLED label entirely, favouring the slightly clunky term ‘QD Display TV’ instead. We’ll take an acronym over that any day.

When will the first QD-OLED TVs be launched?

There’s nothing confirmed just yet, but plenty of rumours suggest it won’t be too long before we can get our hands on a QD-OLED.

Initially, insider information suggested that panel manufacturers Samsung Display have struck a deal to supply Samsung Electronics with QD-OLED panels, with rumours that the hotly anticipated sets will debut at next January’s Consumer Electronics Show pointing to a release in the first half of 2022. 

A new report from Edaily Korea has gone one step further suggesting a provisionary start date for production to begin on  November 30th 2021.  

The report quotes leaked internal communications from Samsung Display CEO Choi Joo-sun, which say that: “QD Display will mass-produce and release 65-inch and 55-inch TVs and 34-inch monitors, and decide whether to increase production based on market reaction.” 

Intriguingly, rumours also suggest that Sony, a key customer of LG Display’ OLED panels, is also planning on launching QD-OLED TVs in 2022.  A report from ChosunBiz hints that Samsung Display will start supplying OD-OLED panels to Sony from November 2021 while Business Korea also reported on the news, saying that in 2022: “Sony, the third-largest player in the TV industry, will also release their QD-OLED TV models”.  

None of these reports so far mention if Sony will launch  QD-OLED models at CES 2022 do not specifically mention Sony will unveil its QD-OLED TVs at CES, but its fair to assume QD-OLED will be a big technology talking point of the next 12 months.

Meanwhile, TCL is developing its own take on QD-OLED called H-QLED, but there’s currently little extra information about it other than that it will be ink-jet printed.

How much will QD-OLEDs cost?

Insiders have suggested that the QD-OLED TVs will sit between Samsung’s six-figure super-premium MicroLED TVs and its flagship QLED lines, meaning they are likely to be more expensive than LG’s OLED TVs.

Reports hint that QD-OLEDs will initially launch in 55-inch and 65-inch sizes, with larger 70-inch models appearing at a later date, with no word yet on if they are set to be 4K or 8K.

Samsung Displays is thought to have invested  $11.7 billion in QD technologies since 2019. As it plans to end LCD production by 2022, it will certainly be looking for a considerable return on its new venture. Theoretically, as QD-OLEDs are simpler in design and use fewer materials, manufacturing costs could eventually drop to below that of OLEDs, potentially making them cheaper to buy in the long run.

MORE

Take a look at the Samsung 2021 TV lineup: everything you need to know

These are the best OLED TVs available right now

Which Samsung QLED TV should you buy?

Anti-OLED Samsung is about to start selling its own OLED TVs

Internet Explorer Channel Network
Asia's Tech News Daily
News Related

OTHER NEWS

Tommy Fury told "gig was up" after needing his "hand held" in Jake Paul build-up

Tommy Fury has been criticised by MMA analyst Chael Sonnen for needing his “hand held” during the build-up to his now cancelled fight with Jake Paul. YouTube star Paul was ... Read more »

Celtic boss slams 'ignorance and probable agenda' behind Kyogo Furuhashi diving criticism

Ange Postecoglou has hit back at the critics who claim Celtic striker Kyogo Furuhashi is guilty of play-acting, accusing them of “probably having an agenda”. © Celtic’s Kyogo Furuhashi points ... Read more »

Celtic boss Ange Postecoglou backs SFA process and responds to £535k question

Celtic manager Ange Postecoglou has backed the SFA over the retrospective punishment handed to Callum Butcher for the Dundee United midfielder’s reckless challenge on David Turnbull. © Celtic manager Ange ... Read more »

Lizzo Gives Chris Evans a Special Shoutout While Performing Erykah Badu's ‘Tyrone'

© Hollywood To You/Star Max/GC Images Lizzo has another special request for Chris Evans. The 33-year-old “Rumors” singer gave her celebrity crush a shoutout over the weekend during a special performance at Art Basel in ... Read more »

Ange Postecoglou on 'endless road' at Celtic: 'I'm not going to sell my team short'

It is doubtful Ange Postecoglou has had sufficient downtime for a trip to see the hulking cantilever structure of the Forth Bridge in all its majesty. © Celtic manager Ange ... Read more »

Eric Bailly has gone viral yet again after comical moment in Man Utd vs Young Boys

Manchester United drew 1-1 with Young Boys in their Champions League clash on Wednesday evening. © GiveMeSport Eric Bailly produced another comical moment in Man Utd vs Young Boys United ... Read more »

Erin McGregor says she suffered panic attacks as she ‘grieved' son Harry's sensory condition

Erin McGregor has opened up on suffering panic attacks and “grieving” after her son Harry was diagnosed with sensory issues. The panto star and sister of UFC star Conor explained ... Read more »

Sex and the City fans are desperate for new show And Just Like That to answer questions on Samantha & Miranda's husband

DUST off your Manolos and relax with a Cosmopolitan – Sex And The City is back. New series And Just Like That follows Carrie, Charlotte and Miranda as they take ... Read more »

Robin Goodfellow's Racing Tips: Best bets for Thursday, December 9

Sportsmail’s racing expert Robin Goodfellow dishes out his tips for Thursday’s meetings at Warwick, Chelmsford City, Newcastle and Taunton. Sportsmail’s racing expert Robin Goodfellow dishes out his tips for Thursday’s ... Read more »

Blackjack Lanza has died at 86 ... pro wrestling legend hailed as 'one of the greatest minds in the business'

Pro wrestler Blackjack Lanza has died at 86, WWE boss Vince McMahon said Wednesday. ‘Our hearts go out to the family and friends of Jack Lanza,’ McMahon said on social ... Read more »

Kendrick Perkins rips Enes Kanter Freedom for not confronting LeBron James in game

Kendrick Perkins thinks Enes Kanter Freedom, a frequent critic of LeBron James, should have had more to say in-person after weeks of slamming James in the media. On Tuesday night, ... Read more »

Instagram boss Adam Mosseri grilled at Congressional hearing over safety

Instagram boss Adam Mosseri got grilled by Congress over claims that the app harms the mental health of young people. Drew Angerer/Getty Images Instagram boss Adam Mosseri took the hot ... Read more »

Covid-19 Omicron variant: Denmark reintroduces some restrictions

© Provided by Khaleej Times Denmark will again impose restrictions aimed at curbing the rapid spread of Covid-19 including the new Omicron variant, the country’s prime minister said on Wednesday. ... Read more »

Yankees take Manny Ramirez in minor league Rule 5 draft

The Yankees selected pitcher Manny Ramirez on Wednesday in the minor league Rule 5 draft. MiLB The Yankees added Manny Ramirez on Wednesday. No, not that Manny Ramirez. This one ... Read more »

Naughty Boy becomes fourth star to exit ITV's I'm A Celebrity leaving fans shocked

Naughty Boy has been named as the fourth person to leave I’m A Celebrity. The music producer left the ITV show on Wednesday night, becoming the fourth person to exit ... Read more »

Ex-Canadian Space Agency engineer faces charge for acting on behalf of Chinese firm

MONTREAL — A former Canadian Space Agency engineer has been charged with breach of trust for using his position to act on behalf of a Chinese company, the RCMP said ... Read more »

Australia regulator greenlights $17 billion Sydney Airport takeover

(Reuters) – Australia’s competition regulator on Thursday approved a A$23.6 billion ($16.92 billion) takeover of Sydney Airport Holdings, bringing one of the country’s biggest buyouts closer to fruition. © Reuters/Loren ... Read more »

Tories reject proposed compromise to allow MPs to see documents on fired scientists

OTTAWA — The Conservatives have rejected a proposed compromise to resolve a long-running dispute over the disclosure of secret documents related to the firing of two scientists at Canada’s highest ... Read more »

Auch Grossbritannien und Australien boykottieren die Winterspiele

Boris Johnson macht für seinen Entscheid Chinas Umgang mit Minderheiten geltend. Die Regierung in Peking reagiert mit scharfer Kritik. © Foto: Keystone Erklärte den diplomatischen Boykott der Spiele: Boris Johnson ... Read more »

Man Utd 1-1 Young Boys: 5 talking points as much-changed Red Devils held at Old Trafford

A much-changed Manchester United side were held by Young Boys at Old Trafford but still topped their Champions League group. The Swiss team beat the Red Devils earlier in the ... Read more »

Barcelona out of Champions League after being easily beaten by Bayern Munich

Barcelona find new levels of humiliation. This Champions League elimination wasn’t an 8-2 or one of those collapses, but it was a first group-stage elimination since 2001. © REUTERS PRI214158765.jpg ... Read more »

Woman found walking with ‘severe burns' after man lit her on fire, Alabama police say

A 36-year-old woman was found walking down a rural road with “severe burns” after a man lit her on fire, Alabama police said. Police responded around 8 a.m. on Dec. ... Read more »

2 arrested for murder in Surat 2 months ago

© Provided by The Indian Express The Detection of Crime Branch (DCB) of Ahmedabad City Police has arrested two persons for the murder of a 25-year-old youth in Surat two ... Read more »

Gen Rawat was likely to visit in-laws' in January; kin switch off TV to shield mom-in-law

© Provided by The Times of India BHOPAL: In his long military career spanning over 40 years and traversing the length and breadth of the country, Chief of Defence Staff ... Read more »

Agra: Former minister Aridaman Singh, 345 others booked for murder and rioting

A criminal case has been registered against former UP minister Mahendra Aridaman Singh and 345 others following an armed confrontation between the minister’s supporters and a former Block Pramukh in ... Read more »

CDS Bipin Rawat, Wife Among 13 Dead in Mi-17 Chopper Crash in Tamil Nadu

© Provided by News18 CDS Bipin Rawat, Wife Among 13 Dead in Mi-17 Chopper Crash in Tamil Nadu Chief of Defence Staff (CDS) Bipin Rawat and his wife, Madhulika Rawat, ... Read more »

Verdacht auf Insiderdeal mit Donald Trump

Der Ex-Präsident will die Marke Trump an der Börse versilbern. Doch die US- Finanzaufsicht ist skeptisch: Werden die Anleger übers Ohr gehauen? © Foto: LM Otero (AP, Keystone) Der frühere ... Read more »

Instagram head says it's bringing back the chronological feed

© Illustration by Alex Castro / The Verge Instagram is working on a chronological feed During a hearing before a Senate subcommittee on Wednesday, Instagram head Adam Mosseri said the ... Read more »

Early BioNTech, Pfizer data suggests boosters may protect against Omicron infection

© Reuters/Sebastian Castaneda Vaccination against the coronavirus disease (COVID-19) in Lima By Ludwig Burger and Michael Erman (Reuters) -BioNTech and Pfizer said on Wednesday a three-shot course of their COVID-19 ... Read more »

Bundesgericht hebt Urteil im Fall Brian auf

Diashow ein Das Bundesgericht hat entschieden: das Obergericht in Zürich muss den Prozess im Fall Brian neu aufrollen. Das Zürcher Obergericht muss den Prozess im Fall Brian neu aufrollen. Das ... Read more »

‘Upshaws' Co-Creator Regina Hicks Sets Netflix Overall Deal, to Develop Comedy Series With Obamas' Higher Ground

© Courtesy Netflix/AP Regina Hicks has signed a multi-year overall deal with Netflix, Variety has learned. Hicks is the co-creator and co-showrunner of the Netflix multi-cam comedy “The Upshaws” starring Wanda ... Read more »

Body of infant girl found at Sabarmati riverfront

© Provided by The Indian Express A case of murder has been lodged against unknown persons after a one-month-old girl was found at the Sabarmati riverfront in Ahmedabad Tuesday. Police ... Read more »

Spionage-Vorwürfe um Zuger Firma Mitto: 4 Punkte, die du wissen musst

© KEYSTONE Teaserbild Die Schweiz steht wieder einmal im Spionage-Strudel: Es werden schwere Vorwürfe gegen ein Kader einer Zuger Firma erhoben. Eine Schweizer Firma soll in einen Spionage-Skandal verwickelt worden ... Read more »

I'm A Celebrity 2021: 'I can speak to my mum!' Naughty Boy becomes fourth campmate to bid farewell to Gwrych Castle as he fails to survive the public vote

Naughty Boy became the fourth campmate sent packing on I’m A Celebrity… Get Me Out Of Here as he failed to survive the public vote on Wednesday. The DJ, 40, ... Read more »

SARAH VINE: Why is it always the woman who carries the can? Allegra Stratton is the only one who has had the balls to take responsibility for this mess

Politics is the most brutal of sports. But even by the standards of this particular rumble in the Whitehall jungle, what has happened to Allegra Stratton, the Prime Minister’s erstwhile, ... Read more »

Industri perfileman di Indonesia lebih ke hadapan: Kin Wah

© Provided by Sinar Harian SHAH ALAM – Industri perfileman di Indonesia disifatkan lebih ke hadapan, bebas dan berkembang berbanding di Malaysia sehingga mampu melahirkan filem dan drama berkualiti. Pelakon ... Read more »

Play your part, urged Boris Johnson... as the nation threw its Rich Teas at the telly: HENRY DEEDES watches the under-fire Prime Minister announce new Covid curbs

Boris Johnson had his sorrowful face on, the one where his lower jaw hangs open like a drawbridge and the eyes droop with a cuckold’s self-pity. Oh goodie. Only one ... Read more »

Man Utd literally have their own Zidane – he even scores like Zizou

© Getty Images Zidane-Iqbal-Manchester-United Playing for Manchester United’s academy is guaranteed to bring pressure but teenage prospect Zidane Iqbal also has another challenge.  Born in Manchester four days after namesake ... Read more »

STEPHEN GLOVER: As Boris Johnson's many enemies rejoice, I feel a deepening despair. Why does he keep shooting himself in the foot?

Boris Johnson is the greatest political escapologist of our time. When I first came across him nearly a quarter of a century ago, he was known by some of his ... Read more »

Palestinian refugees in Lebanon granted limited access to job market

© WAEL HAMZEH Some Palestinian refugees will be able to access more jobs after the decision. EPA Lebanon on Wednesday removed barriers for Palestinian refugees to access some of the ... Read more »
On free-english-test.com you will find lots of free English exam practice materials to help you improve your English skills: grammar, listening, reading, writing, ielts, toeic