Lcd panel ergonomic specifications – Acer 3680 User Manual
Page 122
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English
Council Decision 98/482/EC (CTR21) for pan- European single terminal 
connection to the Public Switched Telephone Network (PSTN). 
RoHS Directive 2002/95/EC on the Restriction of the Use of certain Hazardous 
Substances in Electrical and Electronic Equipment
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
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