Acer D240H Benutzerhandbuch

 

 
 

 

 

AU OPTRONICS CORPORATION 

M240HW01 V2

Note 1: Measurement method 

The LCD module should be stabilized at given temperature for 30 minutes to avoid abrupt 
temperature change during measuring (at surface 35 )

℃

. In order to stabilize the luminance, the 

measurement should be executed after lighting Backlight for 30 minutes in a stable, windless and 
dark room.     

 

 

 

 

 

 

 

 

 

 

 

 

 
Note 2: Definition of viewing angle 

measured by ELDIM (EZContrast 88) 

Viewing angle is the measurement of contrast ratio ≧10, at the screen center, over a 180° 
horizontal and 180° vertical range (off-normal viewing angles). The 180° viewing angle range is 
broken down as follows; 90° (θ) horizontal left and right and 90° (Φ) vertical, high (up) and low 
(down). The measurement direction is typically perpendicular to the display surface with the 
screen rotated about its center to develop the desired measurement viewing angle. 
 
 
 
 
 
 
 
 
 
 
 
 

Center of the screen 

TFT-LCD Module

Measured distance 

Photo detector 

LCD Panel