Contrast ratio results for Acer

Contrast ratio 946:1
Monitor model Acer
Submitted 05 Aug 2019 13:16 CEST, by 177.154.*.*
Camera model asus ASUSX00TDB
Processing remarks

Warning: image file 1: camera was zoomed out too much.
Warning: image file 1: automatic white balance can cause inaccuracies.
image file 1: Note: image seems to be noisy. Try reducing the ISO setting or increasing the exposure time.
Warning: image file 1: Underexposed. Please increase the shutter time.
Note: image file 1: suggested exposure time: 0.3 s (Set EV to +1.5)
Warning: image file 2: camera was zoomed out too much.
Warning: image file 2: automatic white balance can cause inaccuracies.
Note: image file 2: suggested exposure time: 1/110 s (Set EV to -1.7)
Warning: Image ISO settings are not the same.

Black
Screen photo
Luminance 0.08 cd/m2
Luminance spread 0.01 cd/m2 (2 standard deviations)
Exposure value –4.04 stops   (aim for –2 to –3)
Exposure spread 0.24 stops
Area used for calculation 0.1 x 0.0695
Camera settings Exposure time: 1/10   ISO: 3150   F-number: 2.2
Focal length: 3 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
Luminance 76 cd/m2
Luminance spread 5 cd/m2 (2 standard deviations)
Exposure value –0.8 stops   (aim for –2 to –3)
Exposure spread 0.09 stops
Area used for calculation 0.1 x 0.0679
Camera settings Exposure time: 1/33   ISO: 104   F-number: 2.2
Focal length: 3 mm   (35 mm equivalent)
Exposure compensation: 0

The luminance values in cd/m2 are not very reliable, since camera sensitivities can easily differ up to 50% from their nominal value. Typically, the real luminance is 30% lower than this number. The area used for calculation is chosen such that it corresponds to a viewing angle of ±14° horizontally and ±10.5° vertically, which is equivalent to viewing the screen from a distance of about 1.5 times the diagonal size.

Unfortunately, there is a lot of variation in how cameras use EXIF settings. If photos from your camera your produce unusable results, try coming back in a few days. I review submitted pictures regularly and try to fix problems.