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Q7C3 LCD Monitor Service Guide
3.7 Panel optical Characteristics
Viewing Angle
Contrast ratio
Response Time (Note 1)
Color / Chromaticity
Coordinates (CIE)
Color Coordinates (CIE) White
White Luminance @ CCFL 7.0mA
(center)
Luminance Uniformity (Note 2)
Crosstalk (in 75Hz) (Note 3)
Note：
1. Viewing Angle, Contrast Ratio, Response Time, Reflectance, and Chromaticity are measured at panel center.
2. Viewing Angle（θ, ψ）
Measurement is done on position 1.
Viewing angle origine is the axis normal to the flat panel. Left (L) and Right (R) value
are the maximum angles for which CR=10. Up (U) and (D) value are the maximum
angles for which CR=10.
See figure below
Ö = 180 , Left
3.Contrast Ratio (CR) is defined mathematically as:
Item
[degree]
[msec]
[cd/m
Ö = 270 , Down
Luminance
Luminance
(at
Unit
Conditions
Horizontal (Right)
CR = 10
(Left)
Vertical
(Up)
CR = 10
(Down)
Horizontal (Right)
CR = 5
(Left)
Vertical
(Up)
CR = 5
(Down)
Normal Direction
Raising Time
Falling Time
Raising + Falling
Red x
Red y
Green x
Green y
Blue x
Blue y
White x
White y
2
]
[%]
[%]
Normal E
y
È
Ö
in
White
Level
(Max.)
in
Black Lev
el
(Min.)
o
o
=
=
θ
0
φ ,
0
)
Engineering Specification
Min.
Typ.
60
70
60
70
60
70
60
70
70
80
70
80
70
80
70
80
250
450
-
4
-
12
-
16
0.61
0.64
0.31
0.34
0.26
0.29
0.58
0.61
0.11
0.14
0.04
0.07
0.28
0.31
0.30
0.33
200
260
75
80
Ö = 90 , Up
x
Ö = 0 , Right
Max.
-
-
-
-
-
-
-
5
20
25
0.67
0.37
0.32
0.64
0.17
0.10
0.34
0.36
-
-
1.5
14
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