Because "hey, turn down your brightness a little, dude" is not a product you can sell for money.

How about, turn the brightness up to match the suns? Can't do that very easily either.

If anything, I think this screen should have the option of collecting ambient light from an even larger area.

It's actually somewhat genius. It's also interesting with color temperature. I guess it's a CRI of 100 in day light?

> How about, turn the brightness up to match the suns? Can't do that very easily either.

My phone has a setting for that.

And it's possible to do with a webcam + monitor: https://askubuntu.com/questions/23593/use-webcam-to-sense-li...

There's probably some software for that.

I don't understand why more device don't have ambient light sensors built into them. Phones have been doing this amazingly for 15+ years but almost no displays do.

I think I saw a TV a while back that did, but that's 1 out of the 10 billion models out there.

My cheap Benq monitor has a ambient light sensor, and I disabled it because it sucks.

IMO, phones have been doing this horribly for 15+ years, with no signal that it will ever be good enough.

I would never buy a TV with that.

We had a Sony Trinitron CRT TV that had a brightness sensor on it like 35 years ago. It also worked horribly.

My Dell laptop had one, which was very poorly done. Sitting in a dimly lit room, I would catch it self adjusting every several seconds. I ended up disabling it.

Your phone is hardly as bright as the sun though.

> I guess it's a CRI of 100 in day light?

CRI tests illumination sources, not displays. I suppose you could crank the display to max white and hold it up to the test pigments; that'd tell you something about the display's filters, but I'm not sure how useful it would be.

https://en.wikipedia.org/wiki/Color_rendering_index

Turning brightness too low also reduces contrast (e.g. for text). There’s a middle ground with adequate ambient lighting and moderate brightness setting.