Hello Philips/Screeneo. Could you explain more contrast issue of PPM.
The Tech Spec annouced the contrast value 10.000:1 Graphical on main IGG page
Gregory has a different method of measurement. He measures pointing at the lens. We measure pointing at the wall cuz that’s what you see. So our contrast values are almost double.
Measured of Gregory values was about 225:1, according @PhilipsEngineering statement, so you achieved contrast measure about 500:1 - still this is much less than announced in PPM Tech Spec.
Maybe is it project design mistake and target contrast value should be announced just up to 1000:1, not 10.000:1 as mention Tech Spec - isnt’ it?
In my opinion to be compliant, it will be very fair to change the Tech Spec Table and market datasheets for correct contrast value. As contrast ratio up to 1000:1 is still very good result, I think.