3.3.Definition of Viewing Angle and Optimum Viewing Area
•Point q shows the point where contrast ratio is measured. : θ= 0˚, φ= –˚
•Driving condition : 1/240 Duty, 1/14 Bias, VD=22.6V, fF=70Hz
90˚
135˚
45˚
180˚
225˚
•Area
φ
10 20 30 40 50 (φ= 0˚)
θ
180˚
315˚
270˚
shows typ. CR≥2
θ
270˚
90˚
φ
0˚
3.4.System Block Diagram
Photometer
#1980A WB
Temperature Chamber
Rotation Table (θ,φ)
φ
LCD
Optical Fiber
θ
Computer
Control Unit &
Waveform Generator
Halogen bulb
DMF-50174ZNF-FW (AS) No.98-0089
OPTREX OPTREX CORPORATION
Page 9/17