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by grkvlt 1520 days ago
> Quantum dot film are becoming common now (they have been used for a while, but are mainstream now because Rec. 2020)

not really, there are essentially zero quantum dot based white light products commercially available right now, apart from some very niche offerings that are expensive and unreliable like osram/plt leds. and what does 'because Rec. 2020' even mean as a justification?

1 comments

I'm talking about QD films, not diodes.

Since early 2010s Vizio, HiSense and TCL made TV with 3M's QDEF [1].

This year, a few brands made TVs with perovskite quantum dot film. They are being branded as QLED.

The widespread adoption of Rec. 2020 creates a demand for displays capable of displaying larger color volume. Phosphor LEDs TVs have around 60% coverage of Rec. 2020. The best OLED TV has 73% coverage. QDEF TVs has up to 81% coverage. The perovskite quantum are capable of achieving more than 90% (but the commercially available TVs are not there yet).

[1] https://multimedia.3m.com/mws/media/985375O/3mtm-quantum-dot...

ok, so in TVs? makes more sense, thanks! also i learned about https://en.wikipedia.org/wiki/Rec._2020 today...
> ok, so in TVs

No idea why there isn't any computer display with QDEF. It is probably easy to convert them using a filter from a old TV. However, But, this is probably not a good idea, those old quantum dots were toxic.

I think QLED will be everywhere.