42LD420, 42LD420C, 42LD420N, 42LD421, 42LD425, 42LD426, 42LD428 (CHASSIS:LD01B) - LG TV Service Manual (repair manual). Page 7

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5. Module optical specification(AUO)
1) Standard Test Condition (The unit has been ‘ON’)
2) Stable for approximately 30 minutes in a dark environment at 25 ºC ± 2 ºC.
3) The values specified are at approximate distance 50 cm from the LCD surface.
4) Ta= 25 ºC ± 2 ºC, VLCD= 12.0 V, fV= 60 Hz, Dclk= 74.25MHz I
BL
= 136 mA
RMS
, Iout duty= 100 %
- 7 -
No.
Item Specification 
Min.
Typ.
Max.
Remark
1.
Viewing Angle [CR>10] 
Right/Left(Up/Down)
178
Degree
2.
Luminance Luminance 
(cd/m
2
)
500
Variation -
1.3 
MAX 
/MIN
3.
Contrast Ratio 
CR 
1000
1300
4.
CIE Color Coordinates   
RED 
Rx
0.636
Ry
0.335
Green Gx
0.291
Gy
Typ.
0.603
Typ.
Blue Bx 
-0.03
0.146
+0.03
By  
0.061
White Wx
0.279 
Wy 0.292
6. Component Video Input (Y, C
B
/P
B
, C
R
/P
R
)
No.
Specification
Remark
Resolution
H-freq(kHz)
V-freq(Hz)
1.
720x480 15.73 
60.00 
SDTV,DVD 
480i
2.
720x480 15.63 
59.94 
SDTV,DVD 
480i
3.
720x480
31.47
59.94 480p
4.
720x480
31.50
60.00 480p
5.
720x576 
15.625 
50.00 
SDTV,DVD 625 Line
6.
720x576 31.25 
50.00
HDTV 
576p
7.
1280x720
45.00
50.00 HDTV 
720p
8.
1280x720
44.96
59.94 HDTV 
720p
9.
1280x720 45.00 
60.00 
HDTV 
720p
10.
1920x1080 31.25 
50.00 
HDTV 
1080i
11.
1920x1080
33.75
60.00 HDTV 
1080i
12.
1920x1080 33.72 
59.94 
HDTV 
1080i
13.
1920x1080 56.250 
50 
HDTV 
1080p
14.
1920x1080
67.5 60 
HDTV 
1080p
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