Acer AL1703 Service Manual page 11

(4) Measurement Setup:
The LCD module should be stabilized at given temperature for 20 minutes
to avoid abrupt temperature change during measuring. In order to stabilize
the luminance, the measurement should be executed after lighting Backlight
for 20 minutes in a windless room.
LCD Module
LCD Panel
Center of the Screen
500 mm
Field of View = 2 º
11
Photometer
(TOPCON BM-5A)
Light Shield Room
(Ambient Luminance < 2 lux)