Advantech IDK-1110WR-series User Manual page 10

Note 2: Definition of Contrast Ratio
Contrast ratio is calculated with the following formula :
Contrast Ratio (CR)=(White) Luminance of ON ÷ (Black) Luminance of OFF
Note 3: Definition of Response time: Sum of TR and T
Note 4: Definition of optical measurement setup
IDK-1110W User Manual 4