37LD460 (CHASSIS:LL01B) - LG TV Service Manual (repair manual). Page 7

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4. Chroma& Brightness
4.1. Module optical specification
*** LGD module Uniformity Measurement Position*** 
P1
P2
P3
P4
P5
1W/4
2W/4
3W/4
1H/4
2H/4
3H/4
: Measurement position (5 point)
1) Optical characteristics are determined after the unit has been ‘ON’ and stable in a dark environment at 25 °C ± 2 °C
2) Surface luminance is the luminance value at center 1-point across the LCD surface 50cm from the surface with all pixels
displaying white.
No.
Item Specification 
Min.
Typ.
Max.
Remark
1.
Viewing Angle<CR>10> 
Right/Left/Up/Down 
70
88
CR > 10
Luminance (cd/m
2
)
360 450
2.
Luminance
Variation -
1.25 
3.
Contrast Ratio 
CR 
4000 
5000
All white/ All black
White WX
0.278 
WY Typ
0.285
Typ 
RED Xr
0.03
0.641
+0.03
4.
CIE Color Coordinates
Yr
0.344
Green Xg
0.280
Yg
0.607
Blue Xb 
0.144
Yb  
0.072
4.1.1. 32” LCD Module (SHARP) LK315D3LA57
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