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A.1
LCD Optical Characteristics
The optical characteristics are measured under stable conditions at 25°C (Room
Temperature):
Table A.1: Optical Characteristics
Item
Viewing Angle
Luminance Uniformity
Optical Response Time
Color/Chromaticity Coor-
dinates (CIE 1931)
White Luminance
Contrast Ratio
Note(1): Definition of viewing angle
Viewing angle is the measurement of contrast ratio R10, at the screen center, over a
180° horizontal and 180° vertical range (off-normal viewing angles). The 180° view-
ing angle range is broken down as: 90° ) horizontal left and right, and 90° () verti-
cal high (up) and low (down). The measurement direction is typically perpendicular to
the display surface with the screen rotated to its center to develop the desired mea-
surement viewing angle.
Note(2): 9-point position
Note(3): 9-point luminance uniformity is defined by dividing the maximum luminance
values by the minimum test point luminance
IDK-2115 User Manual
Unit
Conditions
[degree]
Horizontal
CR = 10
Vertical
CR = 10
[%]
9 Points
[msec]
Rising
Falling
Rising + Falling
White x
White y
2
[cd/m
]
90 %
50 %
30
Min.
Typ.
(Right)
80
88
(Left)
80
88
(Upper)
80
88
(Lower)
80
88
70
75
-
16
-
7
-
23
-
0.313
-
0.329
1100
1200
1800
2500
10 %
10 %
50 %
90 %
Max. Note
-
(1)
-
-
(2), (3)
21
14
(5)
35
-
(4)
-
-
(4)
-
(4)
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