KAWA LCT37AD, Service Manual

Page: 93 / 129

Product Specification
LC370WX1
Liquid Crystal Display
4. Optical Specification
Optical characteristics are determined after the unit has been ‘ON’ for 30min in a dark environment at 25
±
2
°
C .
The values specified are at an approximate distance 50cm from the LCD surface at a viewing angle of
Φ
and
θ
equal to 0
°
.
It is presented additional information concerning the measurement equipment and method in FIG. 1.
LCD Module
Optical Stage(x,y)
Pritchard 880 or
equivalent
50cm
FIG. 1 Optical Characteristic Measurement Equipment and Method
Ta= 25
±
2
°
C
, V
LCD
=12.0V, f
V
=60Hz, Dclk=72MHz, V
BR
=3.3V
Dynamic CR : Disabled
Table 11. OPTICAL CHARACTERISTICS
16 9 -
-
Gray to Gray
1600 1200 CR
D
(With AI)
6 Gray Scale
5P
y axis, down (
φ
=270
°
)
y axis, up (
φ
=90
°
)
x axis, left (
φ
=180
°
)
x axis, right(
φ
=0
°
)
- 89 85
θ
d
- 89 85
θ
u
- 89 85
θ
l
5 degree
- 89 85
θ
r
Viewing Angle (CR>10)
WHITE
BLUE
GREEN
RED
0.610 Gy
0.287 Gx
0.069 By
0.146 Bx
0.293 Wy
0.285 Wx
0.341 Ry
Typ
+0.03
0.640
Typ
-0.03
Rx
Color
Coordinates
[CIE1931]
4 ms Response Time
3 1.3
δ
WHITE
Luminance Variation
2 cd/m
2
500 400 L
WH
Surface Luminance, white
1
Note Unit
800 600 CR
Contrast Ratio
Max Typ Min
Value
Symbol Parameter
91／127