Product Specification
M270DTN01.5
Note 2-1: 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.
Photo detector
Measured distance
LCD Panel
TFT-LCD Module
Center of the screen
Note 2-2: 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.
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