
Product Specification
17 / 28
LM170E01
Liquid Crystal Display
Ver 1.1
Feb. 24, 2003
4. Optical Specifications
Optical characteristics are determined after the unit has been ‘ON’ and stable for approximately 30 minutes
in a dark environment at 25
°
C. The values specified are measured at an approximate distance 50cm from
the LCD surface at a viewing angle of
Φ
and
θ
equal to 0
°
.
Figure. 9 presents additional information concerning the measurement equipment and method.
(Ta=25
°
C, V
CC
=5.0V, f
V
=60Hz Dclk=54MHz, I
BL
=6.5mArms)
Optical Stage(x,y)
LCD Module
Field = 1
50Cm
Pritchard PR880
or equivalent
[Figure 9] Optical characteristic measurement equipment and method
Table 9. Optical characteristics
Parameter
Symbol
Values
Min.
Typ.
Max.
Units
Notes
Contrast ratio
Surface luminance, white
Luminance uniformity
Response time
Rise time
Decay time
CIE color coordinates
Red
Green
Blue
White
Viewing angle (by CR
≥
10)
X axis, right(
φ
=0
°
)
X axis, left (
φ
=180
°
)
Y axis, up (
φ
=90
°
)
Y axis, down (
φ
=270
°
)
Viewing angle (by CR
≥
5)
X axis, right(
φ
=0
°
)
X axis, left (
φ
=180
°
)
Y axis, up (
φ
=90
°
)
Y axis, down (
φ
=270
°
)
Relative brightness
Luminance uniformity (TCO99)
CR
L
WH
△L
5
Tr
Tr
R
Tr
D
XR
YR
XG
YG
XB
YB
XW
YW
θ
r
θ
l
θ
u
θ
d
θ
r
θ
l
θ
u
θ
d
300
200
-
-
-
0.611
0.312
0.262
0.581
0.117
0.038
0.283
0.299
60
60
50
45
70
70
60
55
-
450
250
-
16
2
14
0.641
0.342
0.292
0.611
0.147
0.068
0.313
0.329
70
70
60
60
80
80
70
70
-
-
-
1.3
30
6
24
0.671
0.372
0.322
0.641
0.177
0.098
0.343
0.359
-
-
-
-
-
-
-
-
-
1.7
cd/m
2
ms
degree
degree
1
2
3
4
5
6
Figure 10