QD-OLED vs OLED: What’s the difference?

by -180 views

At CES 2022 we got our start glimpse of the new QD-OLED display technology that’s set to launch later this yr.

QD-OLED is a merging of OLED panels and Quantum Dot technology, and in theory information technology offers the all-time of both worlds. QD-OLED is not only taking the game to OLED only looking to transport them to the scrap heap (or local recycling bay).

And and so we have an intriguing battle in QD-OLED vs OLED, leading us to go through the means in which the 2 display technologies differ, how they work and what their all-time attributes are.

How are they unlike?

credit: Samsung

Both screens are cocky-emissive, which means each pixel tin create its ain light. The benefit is that local dimming is at a pixel level, so each individual pixel tin be controlled for form-leading contrast and black levels.

So that’s how they’re similar just in what way do they differ? Primarily through the structure of the panel. LG’s WOLED panels are used across the TV market, and it uses blue and yellow OLED materials to produce a white calorie-free that’s passed through a color filter to create the red, dark-green, and blue pixels that make up an image on screen.

QD-OLED nonetheless sends blue lite into a Quantum Dot filter to create red and greenish light, and the combination of these saturated red, green, and blue lights produce what’s seen on the screen. The Quantum Dot filter is one key chemical element equally to whatever advantages QD-OLED tin offer over OLED.

It’s the aforementioned principle but executed in a dissimilar way. And early backers of QD-OLED are confident the results are an improvement too.


LG G1 OLED The Dark Knight
LG G1 OLED playing The Dark Knight in 4K HDR

One disadvantage of OLED screens compared to LCD LED TVs is that superlative brightness isn’t as bright equally their LCD equivalents. That’southward not to error OLEDs for being unable to deliver bright images. They tin can, as some annals a summit brightness of up to 1000 nits on a 5% or 10% HDR window (ordinarily in their Bright/Dynamic modes).

Where QD-OLED fits into all this is that it’s capable of college superlative and boilerplate brightness than traditional OLEDs, with Samsung saying its QD Displays are certified equally striking 1000 nits (and online scuttlebutt suggests information technology can get every bit high as 1500 in certain situations).

HDR video content is mastered at the HDR10 industry standard required for TVs (1000 nits) and reaching this level of brightness would negate the need for aggressive tone mapping to reproduce the full range of luminance because QD-OLED’s dynamic range is not as limited as OLED.

And though LCD LEDs can achieve higher effulgence than both, information technology hits roadblocks in managing blooming and backlight haemorrhage. That makes QD-OLED a chip similar the Daywalker himself, Blade the vampire hunter – able to sideslip between both worlds – delivering on the effulgence needed for a vibrant HDR operation, merely also exhibiting deep black levels and sky-high contrast.

While there’s the hazard of prototype memory and burn-in with OLEDs, both are unlikely to happen if you apply your Television receiver normally. There’due south been no mention of whether QD-OLED has solved that issue, which suggests it could however exist a affair of contention but one negated past responsible use and implementation of anti-retentiveness safeguards.

Y’all might like…


Sony A95K QD-OLED Bravia XR TV
Sony A95K QD-OLED Bravia XR Telly

Contrast for a Telly is the difference between its darkest shadows and brightest peaks. When a scene calls for absolute black, OLED can deliver with its pixel-level dimming ability to turn all of them off for true blacks. No other brandish tech tin can perform every bit nimbly.

This makes OLED’s contrast (infinitely) better than LCD LED TVs because the black parts of the epitome are actually black. You may spot a slight blue tinge on LCDs – it’s noticeable if you compare an OLED and LCD side-to-side – and that’due south considering of the LCD’s backlight peering through.

QD-OLED expresses a contrast ratio of i,000,000:ane, simply presumably it’s as well capable of infinite contrast, besides. As such, QD-OLED’s ability to evangelize a brighter output ways it’ll be able to work equally well in brighter environments whereas OLED TVs work all-time in low-calorie-free conditions.

Viewing angles

Samsung QD Display viewing angles

OLED screens offer very wide viewing angles, ensuring colours practise not lose their lustre at more than astute angles. You can accept enough of people watching at various angles and they’d nonetheless encounter good motion picture quality.

As QD-OLED has like characteristics, viewing angles should be just as stiff, simply where the new brandish tech may accept an reward is in effulgence. Based on their internal evaluation (so have this with a pinch of table salt), Samsung says that when viewing a 65-inch TV from a 60-degree angle, “the QD-Display maintained more 80% of the frontal luminance, whereas WOLED and LCD displays of the aforementioned size dropped to 53% and 35%.”

AS QD-OLED emits light uniformly in all directions, it implies the display can maintain luminance and color volume at wider angles for a picture that’s richer, vibrant and doesn’t suffer from as much degradation.

A QD-OLED is as well said to produce lower levels of glare and reflection, which should likewise help to emphasise colours, brightness and contrast.


It’s the utilize of Breakthrough Dot engineering that potentially gives QD-OLEDs a win over OLED TVs. Quantum Dots are known for their purity and light efficiency, displaying colours with more accuracy at varying levels of effulgence (referred to as colour book). This results in expressive images that ape existent world colours.

OLED TVs have struggled with colour volume at the brighter end of the luminance range, which is crucial as being able to hit college levels of luminance helps to convey a broader range of colours. A QD Display can realise more of the BT.2020 and DCI-P3 colour spectrum, relaying images that are closer to how we see the world with our own eyes. This will too aid improve HDR performance also.

What are they used for?

Nintendo Switch OLED

OLED is used across a range of devices and applications. Smartphones use OLED screens (or AMOLED, which is similar), as practise handheld gaming devices (Nintendo Switch OLED), laptops (Dell XPS 13 OLED), TVs, and even Hollywood colour artists (the films you run into have been often been graded on Panasonic and LG OLED screens).

OLED draws relatively depression levels of power, which helps with mobile devices, and OLED’s pixel level precision assists faster refresh rates, so they’re seen as a good choice for loftier-cease gaming.

Alienware 34 Curved QD-OLED Monitor
Alienware curved QD-OLED screen

At CES, Alienware announced an QD OLED monitor with like characteristics to QD Display TVs (thousand nits peak brightness, broad colour range, high color uniformity etc).

As these are first generation Quantum Dot OLEDs they’re non likely to be equally affordable as OLED. If so, the number of applications and devices would exist lower, at least for now.

Which is better?

It’south hard to give whatsoever cinch statement on which is better. On newspaper, QD-OLED would appear to have the edge as the higher elevation and average effulgence would assist with HDR and colour expression.

Pricing volition be a cistron however. OLED is the more mature tech and available in a broad range of sizes – as pocket-size as 42-inches and as big as 97-inches – where QD-OLED TVs can only be made in 55- and 65-inch sizes, though nosotros’ve seen a 34-inch gaming model.

OLEDs continued affordability will only strengthen it, while QD-OLED is seen as a premium priced player in the Tv set market. In that location’southward but some overlap here as OLED has more than invested in penetrating the mainstream Television market.

When QD Displays launch, information technology’ll be a instance of establishing themselves before bedding themselves in, much as 8K did when it launched. In the here and at present, OLED is the safer and probably less expensive choice, simply QD-OLED will exist making inroads and there’southward no doubting it heralds an exciting time in the TV globe.

Source: https://www.trustedreviews.com/versus/qd-oled-vs-oled-4195789

Posted by: Sadiyev.com