Hitachi CML176SXW Service Manual page 8

Note 1) Definition of Viewing Angle: Viewing angle range (10≤CR)
Note 2) Definition of Contrast Ratio (CR): Ratio of gray max (Gmax), gray min (Gmin) at the
center point of panel.
Luminance with all pixels white (Gmax)

CR=
Luminance with all pixels black (Gmin)
Note 3) Definition of Response time: Sum of T , T
R F
8