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7. Chroma& Brightness
7.1 Module optical specification
No.
Item
1.
Max Luminance
(Center1-point/ Ful white pattern)
2.
Luminance uniformity
3.
Contrast Ratio
4.
Color Coordinates
5.
Color Temperatue
6.
Color Distortion, DG
7.
Color Distortion,DP
8.
Color S/N,AM/FM
9.
Color Killer Sensitivity
7.2Max Luminance &Contrast measure standard specification
- Max Luminance measure specification
1) In non-impressed condition, measure peak brightness displayable as much as possible LCD module.
2) Measuring instrument: CA-210 or a sort of Color Analyzer.
3) Pattern Generator :VG- 828 or a sort of digital pattern generator (displayable Full White &1/25 White Window pattern)
4) Measure condition
• Test pattern: in center,1/5(H)*1/5(V) of Window Pattern (white pattern in non-impressed condition)
• SET condition: Contrast &Brightness Level 100%
• Environment condition : Dark room in the non outside light
• Video menu option condition
Signal
RF
NTSC-M
AV
NTSC-J
Component
RGB
1024x768
HDMI
DTV 720P
5) Measurement
• Do heat-run LCD module at 30minutes in normal temperature (25°C)by using full white pattern of 15%signal level(38 gray level).
• Impress test pattern signal in 1/5(H)*1/5(V)White Window of 100%(255Gray Level)
• measure 3 times brightness of central white window,and mark peak brightness in max brightness degree
• measure the same condition in video signal /RGB signal.
- Luminance uniformity measure specification
1) Impress 100%(255Gray Level) full white pattern at the same peak brightness measurement.
2) Measure average brightness in 5 points.
Copyright
LG Electronics. Inc. All right reserved.
Only for training and service purposes
Specification
Modele
Luminance
White
RED
Green
Blue
Cool
Medium
Warm
Picture Mode
Vivid
Vivid
720P
Vivid
Vivid
Vivid
Min.
400
77
1000: 1
1300: 1
40000: 1(DCR) 50000:1(DCR)
WX
Typ
0.279
WY
-0.03
0.292
Xr
0.639
Yr
0.333
Xg
0.292
Yg
0.604
Xb
0.145
Yb
0.062
Typ
0.276
-0.015
0.283
0.285
0.293
0.313
0.329
43.0
-80
Dynamic Contrast
Dynamic Color
High
High
High
High
High
High
High
High
High
- 8 -
Typ.
Max.
cd/m 2
500
Typ
+0.03
Typ
85% Full white pattern
+0.015
**The W/B Tolerance is
± 0.015 for Adjustment
Dynamic contrast :off
Dynamic color :off
Energy saving mode :off
10.0
%
10.0
deg
dB
dB
Black Level
Low
High
High
NA
NA
Low
Remark
OPC
Off
Off
Off
Off
Off
LGE Internal Use Only
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