Acer AL1512sg, Service Manual

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Luminance of center point: L=L(5)
Brightness Uniformity Measurement points: Five specified points 1-5
Formula: Maximum [L (1), L (2), L (3), L (4), L (5)]/Minimum [L (1), L (2), L (3), L (4),
L (5)]
Note (3) Definition of Response Time (T
R
, T
F
):
T
R
T
F
Gray Level 0
Gray Level 255 Gray Level 255
100%
90%
10%
0%
Optical
Response
Time
Note (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.
Light Shield Room
(Ambient Luminance < 2 lux)
Center of the Screen
LCD Panel
LCD Module
500 mm
Field of View = 2º
Photometer
(TOPCON BM-5A)
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