Active kewl monitor.

[tp4tissue]

Added a fan to my monitor, the contrast ratio is higher.

Went from 6500:1 to 6833:1

That's not HUGE,  but I can't think of why....

Is it just that the measurement is more stable across time ?


Thoughts?

[pixelpusher]

maybe water cool it and see if you can push it further 

[tp4tissue]

maybe water cool it and see if you can push it further 

Thought about it,  but with most displays I'd have to cut into the bezel.

They also don't generate enough heat to warrant water, because the dissipation area is pretty large vs wattage.

I feel like the calibration is tighter with the active kewl. 

[suicidal_orange]

Electronics work better when cooled, that's why we cool them.  Without knowing what tech this monitor is (and actually as I'm not an EE that still wouldn't help me...) or your method of testing (turn on, leave for 30 mins to stabilise, test, turn off for an hour and repeat with cooling at a constant ambient temperature would be best) it's impossible to say why but I'm not surprised.

5% is a nice improvement as long as your solution isn't loud and/or ugly if either would be a problem

[yui]

on LCD the light that is not used is disipated as heat, so the cooler your monitor the most light it can absorb, so can reach higher luminosity or lower darks, so higher contrasts, i do not think it would work on low end monitors/tvs but i have seen a few videos complaining about contrast being higher when just started up.
for oled i guess the same idea applies, the more light you want out the more heat those LEDs output, so if you do not want to kill them you may need to lower the overall brightness with heat, so reducing the contrast.
both are only guesses on my part though