1.Speacifi cations
Copyright©2005 Aplus Technic® All Rights Reserved
4
1.Speacifi
ca
tions
1.2.2 Optical spec brief
Item
Symbol
Condition
Min.
Typ.
Max. Unit
Note
Contrast Ratio
CR
-
(450)
-
-
Note(2)
T
R
-
(5)
-
ms
Response Time
T
F
-
(11)
-
ms Note(3)
Center Luminance of White
L
C
TBD (450)
-
cd/m
2
Note(4)
Average Luminance of White
L
AVE
TBD
TBD
-
cd/m
2
White Variation
δ
W
-
-
1.6
-
Note(7)
Cross Talk
CT
-
-
4
% Note(5)
Rx
(0.610) (0.640) (0.670)
-
Red
Ry
(0.300) (0.330) (0.360)
-
Gx
(0.243) (0.273) (0.303)
-
Green
Gy
(0.570) (0.600) (0.630)
-
Bx
(0.112) (0.142) (0.172)
-
Blue
By
(0.040) (0.070) (0.100)
-
Note(6)
Wx
0.255 0.285 0.315
-
White
Wy
0.263 0.293 0.323
-
9, 300K
Color
Chromaticity
Color Gamut
θ
x
=0
°
,
θ
Y
=0
°
Viewing Normal Angle
(75)
%
θ
x
+
(80)
-
Horizontal
θ
x
-
(80)
-
θ
Y
+
(75)
-
Viewing
Angle
Vertical
θ
Y
-
CR
≥
10
(65)
-
Deg. Note(1)
Note (1) Definition of Viewing Angle (
θ
x,
θ
y):
Note (2) Definition of Contrast Ratio (CR):
The contrast ratio can be calculated by the following expression.
Contrast Ratio (CR) = L255 / L0
L255: Luminance of gray level 255
L 0: Luminance of gray level 0
CR = CR (5)
CR (X) is corresponding to the Contrast Ratio of the point X at the figure in Note (7).
Note (3) Definition of Response Time (T
R
, T
F
):
12 o’clock direction
θ
y+
= 90º
6 o’clock
θ
y-
= 90º
θ
x
−
θ
x
+
θ
y-
θ
y
+
x-
y+
y-
x+
Normal
θ
x =
θ
y = 0º
θ
X+
= 90º
θ
X-
= 90º
Optical
Response
100%
90%
10%
0%
Gray Level 255
Gray Level 0
Gray Level 255
Time
T
R
T
F
Note (4) Definition of Luminance of White (L
C
, L
AVE
):
Measure the luminance of gray level 255 at center point and 5 points
L
C
= L (5)
L
AVE
= [L (1)+ L (2)+ L (3)+ L (4)+ L (5)] / 5
L (x) is corresponding to the luminance of the point X at the figure in Note (7).
Note (5) Definition of Cross Talk (CT):
CT = | Y
B
– Y
A
| / Y
A
×
100 (%)
Where:
Y
A
= Luminance of measured location without gray level 0 pattern (cd/m
2
)
Y
B
= Luminance of measured location with gray level 0 pattern (cd/m
2
)
Note (6) Measurement Setup:
The LCD module should be stabilized at given temperature for 30 minutes to avoid abrupt
temperature change during measuring. In order to stabilize the luminance, the measurement
should be executed after lighting Backlight for 30 minutes in a windless room.
Active Area
Y
A, U
(D/2,W/8)
Y
A, R
(7D/8,W/2)
Y
A, D
(D/2,7W/8)
Y
A, L
(D/8,W/2)
(0, 0)
(D,W)
Gray 128
Active Area
Gray 0
(D/4,W/4)
(3D/4,3W/4)
(0, 0)
Y
B, U
(D/2,W/8)
Y
B, R
(7D/8,W/2)
Y
B, D
(D/2,7W/8)
Y
B, L
(D/8,W/2)
(D,W)
Gray 128
Photometer
(TOPCON BM-5A)
Field of View = 2º
500 mm
LCD Module
LCD Panel
Center of the Screen
Light Shield Room
(Ambient Luminance < 2 lux)
Gray 0
Note (7) Definition of White Variation (
δ
W):
Measure the luminance of gray level 255 at 5 points
δ
W = Maximum [L (1), L (2), L (3), L (4), L (5)] / Minimum [L (1), L (2), L (3), L (4), L (5)]
D
W
Active Area
Ve
rti
ca
l L
in
e
Horizontal Line
: Test Point
X=1 to 5
5
1
2
3
4
D/4
D/2
3D/4
W/4
W/2
3W/4
X
Note (4) Definition of Luminance of White (L
C
, L
AVE
):
Measure the luminance of gray level 255 at center point and 5 points
L
C
= L (5)
L
AVE
= [L (1)+ L (2)+ L (3)+ L (4)+ L (5)] / 5
L (x) is corresponding to the luminance of the point X at the figure in Note (7).
Note (5) Definition of Cross Talk (CT):
CT = | Y
B
– Y
A
| / Y
A
×
100 (%)
Where:
Y
A
= Luminance of measured location without gray level 0 pattern (cd/m
2
)
Y
B
= Luminance of measured location with gray level 0 pattern (cd/m
2
)
Note (6) Measurement Setup:
The LCD module should be stabilized at given temperature for 30 minutes to avoid abrupt
temperature change during measuring. In order to stabilize the luminance, the measurement
should be executed after lighting Backlight for 30 minutes in a windless room.
Active Area
Y
A, U
(D/2,W/8)
Y
A, R
(7D/8,W/2)
Y
A, D
(D/2,7W/8)
Y
A, L
(D/8,W/2)
(0, 0)
(D,W)
Gray 128
Active Area
Gray 0
(D/4,W/4)
(3D/4,3W/4)
(0, 0)
Y
B, U
(D/2,W/8)
Y
B, R
(7D/8,W/2)
Y
B, D
(D/2,7W/8)
Y
B, L
(D/8,W/2)
(D,W)
Gray 128
Photometer
(TOPCON BM-5A)
Field of View = 2º
500 mm
LCD Module
LCD Panel
Center of the Screen
Light Shield Room
(Ambient Luminance < 2 lux)
Gray 0
