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Note 1: Definition of viewing angle range
Fig. 4-1 Definition of viewing angle
Note 2: Definition of optical measurement system.
The optical characteristics should be measured in dark room. After 30 minutes
operation, the optical properties are measured at the center point of the LCD screen.
(Response time is measured by Photo detector TOPCON BM-7, other items are
measured by BM-5A/Field of view: 1° /Height: 500mm.)
Fig. 4-2 Optical measurement system setup
Normal line
θ=Φ=0°
Φ=90°
12 o’clock direction
Φ=270°
6 o’clock direction
Φ=0°
Φ=180°
Active Area
θL
θT
θB
θR
Normal line
θ=Φ=0°
Photo detector
Φ=90°
12 o’clock direction
500mm
LCM +Touch Screen
Φ=0°
Φ=180°
Φ=270°
6 o’clock direction
LCM +Touch Screen
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