3.3. Definition of Viewing Angle and Optimum Viewing Area
*Point • shows the point where contrast ratio is measured. : θ= 0°, φ= -°
*Driving condition: 1/240 Duty, 1/14 Bias, VOD=22.4V, fF=70Hz
90°
135°
45°
180°
225°
φ
10 20 30 40 50
θ
(φ = 0°)
180°
270°
315°
θ
270°
90°
φ
0°
*Area
shows typ. CR≥1.5 (Measuring Spot : 3.0mmφ)
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
F-51477GNF-SLY-AA (AA) No. 2002-0239
OPTREX CORPORATION
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