this post was submitted on 22 Apr 2024
337 points (98.8% liked)

Technology

59421 readers
3562 users here now

This is a most excellent place for technology news and articles.


Our Rules


  1. Follow the lemmy.world rules.
  2. Only tech related content.
  3. Be excellent to each another!
  4. Mod approved content bots can post up to 10 articles per day.
  5. Threads asking for personal tech support may be deleted.
  6. Politics threads may be removed.
  7. No memes allowed as posts, OK to post as comments.
  8. Only approved bots from the list below, to ask if your bot can be added please contact us.
  9. Check for duplicates before posting, duplicates may be removed

Approved Bots


founded 1 year ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
[–] [email protected] 97 points 6 months ago* (last edited 6 months ago) (19 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] 57 points 6 months ago* (last edited 6 months ago) (7 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.

[–] [email protected] 3 points 6 months ago

Light emitting diode -> smoke emitting diode -> flame emitting diode

load more comments (5 replies)
load more comments (16 replies)