Acer Extensa 4210 - Manual (Page 102)

86
English
LCD panel ergonomic specifications
Design viewing distance 500 mm
Design inclination angle 0.0°
Design azimuth angle 90.0°
Viewing direction range class Class IV
Screen tilt angle 85.0°
Design screen illuminance
•
Illuminance level:
[250 + (250cos
α
)] lx where
α
= 85°
•
Color: Source D65
Reflection class of LCD panel
(positive and negative polarity)
•
Ordinary LCD: Class I
•
Protective or Acer CrystalBrite
™
LCD:
Class III
Image polarity Both
Reference white:
Pre-setting of luminance and
color temperature @ 6500K
(tested under BM7)
•
Yn: 185 ± 20 cd/m
2
•
u'n: 0.230 ± 0.03
•
v'n: 0.459 ± 0.03
Pixel fault class Class II