42LK450 (CHASSIS:LJ01M) - LG TV Service Manual (repair manual). Page 8

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5. Chrominance & Luminance (42LK450-SG)
No
Item
Min
Typ
Max
Unit
Remark
1
Max Luminance
Module
400
500
cd/m
2
LGD
(Center 1-point / 
320
400
AUO
Full White Pattern)
SET
360
450
cd/m
2
LGD
280
350
AUO 
2
Luminance uniformity
1.3
3
Color coordinate
RED
X
Typ.
0.636
Typ.
LGD
-0.03
0.640
+0.03
AUO
Y
0.335
LGD
0.330
AUO
GREEN
X
0.291
LGD
0.281
AUO
Y
0.603
LGD
0.509
AUO
BLUE
X
0.146
LGD
0.144
AUO
Y
0.061
LGD
0.060
AUO
WHITE
X
0.279
LGD
0.280
AUO
Y
0.292
LGD
0.290
AUO
3. 
Contrast ratio 
1100     
1450
LGD
3200
4000
AUO
4. 
Color Temperature 
Cool 
0.254 
0.269 
0.284 
<Test Condition> 
0.258 
0.273 
0.288 
* The W/B Tolerance is ± 0.015 for 
Standard 0.270 
0.285 
0.300  Adjustment
0.278 0.293 0.308 
Warm 0.298 
0.313
0.324 
0.314 0.329 0.344 
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