this post was submitted on 22 Apr 2024
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(page 2) 18 comments
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[–] [email protected] 10 points 6 months ago (1 children)

How much do you reckon the first qdel tv cost? 20k?

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[–] [email protected] 97 points 6 months ago* (last edited 6 months ago) (5 children)

The fact that quantum dots are already being successfully applied to LCD-LED and OLED screens is encouraging for future QDEL products. QDEL stakeholders claim that the tech could bring efficiencies like lower power consumption and higher brightness than OLED. (Research using a prototype device has recorded quantum dot light-emitting diodes reaching 614,000 nits. Of course, those aren't the type of results you should expect to see in a real-life consumer product.)

614,000 nits

That's fucking insane. HDR 1400 displays are at least 1,400 nits. 614,000 nits seems like you'd be staring at the fucking sun.

There's also hope that QDEL could eventually last longer than OLED, especially since QDEL doesn't rely on organic materials that can cause burn-in.

Tbh the burn-in issue is the reason why I don't like OLEDs as computer monitors. I know phones and TVs don't tend to have major burn-in issues, but the fact that it exists sucks. TVs have a variable-enough image that long-term use isn't an issue imo, and even the most thrifty person will probably end up replacing their phone every 4~6 yrs. However, I'm used to having computer monitors be long-term things. My last monitor lasted about 10yrs before it died.

As it stands, QDEL displays would become noticeably dimmer more quickly than today's OLED displays.

Aw, that's disappointing. At the same time though, if they're able to get even 10% of the 614,000 nits on commercial units, then they'd have to lose a significant amount of brightness to dim to current display levels.

But optimists believe QDEL display lifetimes could one day be on par with LCD-LEDs and outlast OLEDs.

Yeah, I hope so too.

[–] [email protected] 6 points 6 months ago* (last edited 6 months ago) (6 children)

phones definetly have issues with burnin still. my last phone had it as well as some image degradation despite constant promising its all good now. at this point ill just stick with lcds until we have better tech.

[–] [email protected] 5 points 6 months ago (1 children)

I am worried about burn-in on computer screens, but at the same time I am just wondering about how others use their phones, my last 4 phones had OLED and I have never had any burn in occur. I bought a used Galaxy S4 mini at some point and when I got it had slight burn-in of some icons, but it didn't get any worse in the two years I was using it. Am I maybe just too old because I use a computer while young people use their phones for 10 hours a day?

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[–] [email protected] 57 points 6 months ago* (last edited 6 months ago) (6 children)

So the formula for nits to Lumen is below:

N=L/3.426

614,000 = L / 3.426

2,103,564 Lumens

Bruh...

1m² of the sun is 127,000 Lumen. This TV is at most 2 m². It'd certainly be the last thing you ever saw.

[–] [email protected] 61 points 6 months ago (1 children)

That lab sample must have been a single diode emitting for a nanosecond or something.

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[–] [email protected] 11 points 6 months ago* (last edited 6 months ago)

I would assume a retail ready model would have the capacity for that blinding level of nits, but undervolt to a more reasonable brilliant 2,000 and then add voltage over time to compensate for the dimming over time.

I will say that having a >10,000 nit display could be really cool at 8k, you could produce some really awesome images and stare at the Sun without having to go outside and with less cone damage.

Apparently the Sun at noon is 1.6 billion nits, that would be hilarious in a TV.

[–] [email protected] 20 points 6 months ago

We will continue to wait for the holy grail of micro LED monitors and phones. So far, all of my OLED phones have burnt in around the 5 year mark. Avoiding OLED like the plague for longer lasting devices like Monitors, TVs and (god forbid) car displays.

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[–] [email protected] 3 points 6 months ago
[–] [email protected] 32 points 6 months ago (1 children)
[–] [email protected] 18 points 6 months ago (1 children)

Bring on the nanomachines.

[–] [email protected] 11 points 6 months ago (2 children)
[–] [email protected] 19 points 6 months ago

What is this? A TV for quarks?

[–] [email protected] 2 points 6 months ago (2 children)

Pretty sure these tvs will be the same size as today’s.

[–] [email protected] -1 points 6 months ago

We would build this TV and make ants pay for it!

Celebratory shots from AR-15 and red caps get thrown into the sky.

[–] [email protected] 7 points 6 months ago

yeah but nano

[–] [email protected] 10 points 6 months ago

This is the best summary I could come up with:


With OLED-equipped TVs, monitors, and other gadgets slowly becoming more readily available at lower prices, attention is turning to what the next landmark consumer display tech will be.

Micro LED often features in such discussions, but the tech is not expected to start hitting consumer devices until the 2030s.

But when it comes to technology that could seriously address top user concerns—like image quality, price, and longevity—quantum dots seem the most pertinent at the moment.

Not to be confused with the QLED (quantum light emitting diode) tech already available in TVs, QDEL displays don't have a backlight.

The expected result is displays with wider color spaces than today's QD-OLEDs (quantum dot OLEDs) that are also brighter, more affordable, and resistant to burn-in.

If commercialized and mass-produced, QDEL can have a cost-to-performance ratio better than that of OLED, but it would still struggle to compete with LCD-LED on a cost basis.


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