Cold = Brighter.

[tp4tissue]

So, the way LEDs work, The colder they're running, the brighter they are.

TV's running way out of spec.   Calibrated color temp 6534k,  measured today 6683k.

It's running ~ 2% brighter which is what's accounting for the Blue drift.  ~ 10 Degrees difference.


Time to run Winter calibrations..

[invariance]

Ergo, run air conditioning 24/7 @ 20C (68F) for no colour drift 

[tp4tissue]

Ergo, run air conditioning 24/7 @ 20C (68F) for no colour drift 

Not after buying all these monitors and laptops .. It's all Top ramen and no heat till spring. Huddles next to server 4 heat.  Knowing the EM-wavez prolly giving Epic cancer.

[Sintpinty]

So, the way LEDs work, The colder they're running, the brighter they are.

TV's running way out of spec.   Calibrated color temp 6534k,  measured today 6683k.

It's running ~ 2% brighter which is what's accounting for the Blue drift.  ~ 10 Degrees difference.


Time to run Winter calibrations..

Show Image

Is that why my eyes are irritated now?

Dark theme is just too dark.

[JP]

Wait, so now you're going to need real-time dynamic calibrations based on temperature?  This or check the calibration for a range of temperatures, do some fancy interpolation, and implement it into your own custom controller for your display which of course would need to have some temperature probes or sensors.

[Edit] Or build an insulated and temperature and humidity controlled room to preserve calibrations.

[tp4tissue]

Wait, so now you're going to need real-time dynamic calibrations based on temperature?  This or check the calibration for a range of temperatures, do some fancy interpolation, and implement it into your own custom controller for your display which of course would need to have some temperature probes or sensors.

[Edit] Or build an insulated and temperature and humidity controlled room to preserve calibrations.

Samsung TVs already have something like this, It varies drive current and Rgb balance to target white point as the temperature moves up and down.

It's not accurate to do dynamic though, ideally, you want active cooling + stable room temperature.

[noisyturtle]

So, the way LEDs work, The colder they're running, the brighter they are.

TV's running way out of spec.   Calibrated color temp 6534k,  measured today 6683k.

It's running ~ 2% brighter which is what's accounting for the Blue drift.  ~ 10 Degrees difference.


Time to run Winter calibrations..

Show Image

Is that why my eyes are irritated now?

Dark theme is just too dark.

Dark themes always screw up my eyes leaving an after-shadow filter on everything I look at for a few mins after. Like when you look at something super bright and everything seems darker for a little while. Normal white themes don't cause this, and constantly blowing out my cones looking at a monitor probably isn't healthy.

[invariance]

Wait, so now you're going to need real-time dynamic calibrations based on temperature?  This or check the calibration for a range of temperatures, do some fancy interpolation, and implement it into your own custom controller for your display which of course would need to have some temperature probes or sensors.

[Edit] Or build an insulated and temperature and humidity controlled room to preserve calibrations.

Samsung TVs already have something like this, It varies drive current and Rgb balance to target white point as the temperature moves up and down.

It's not accurate to do dynamic though, ideally, you want active cooling + stable room temperature.

Now we’re onto something, modding tv’s with a phase change cooler.

[tp4tissue]

Now we’re onto something, modding tv’s with a phase change cooler.

Mmm... at max at sub-zero, I think it's ~ 50% brighter. you'd spend more power phase cooling than if you just put in more leds, at lower drive/heat

Going even further, if cost was no concern, Laser would be even better and have much higher light purity.