The replacement unit I received immediately seemed to have a better and brighter display, which is confirmed by the measurements graphs attached.
The replacement is brighter, with warmer white point, its RGB channels curves response are a lot closer across the board.
From comparing two phones, I can't tell if one is just better than the other or if Google improved the factory calibration process.
Neither display's white look like D65 daylight white compared to actual daylight or a reference CRT monitor (regardless of the sensor used).
Maximum brightness – significant difference
original: 409 cd/m², replacement 510 cd/m²
Contrast ratio – about the same
original: 926:1, replacement: 952:1
Average gamma – interestingly about the same despite the difference in curves
original: 2.07, replacement: 2.08
Up next: results calibrated 😉
#supercurioBlog #calibration #display #color #measurements
In Album Display Measurements: first batch Nexus 5 vs refurbished replacement
4 thoughts on “A few days ago I sent back my Nexus 5, from the first batch shipped to France for a defect behind the glass lens”
Check your power button , just had 2 replacements because the power buttons got stuck pressed down. And your right my first batch nexus 5 screen with these replacements was different.
+Hugo Queiriga Fortunately the replacement works great 🙂
Yes and without a large measurements database it's impossible to tell if they improved the calibration consistency or it's just sample to sample variation.
From the shape of the curves, I would guess that the calibration is identical – only the panels are respond differently physically.
That may be just diferent LEDs for backlight.
Even though LED's also losse btrighness with age, I suppose it's not that much on a screen of a not so old phone..
+Miguel Silva yes there's variations in the backlight led, it's typical.
As you can see the curves are also not the same, this is typical for panels as well that are not calibrated individually.