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- 8 -
C
2009
7. Chroma& Brightness
7.1 Module optical specification
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
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
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.
• 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.
1) Impress 100%(255Gray Level) full white pattern at the same peak brightness measurement.
2) Measure average brightness in 5 points.
Signal
Picture Mode
Dynamic Contrast
Dynamic Color
Black Level
OPC
RF
NTSC-M
Vivid
High
High
Low
Off
AV
NTSC-J
Vivid
High
High
High
Off
Component
720P
Vivid
High
High
High
Off
RGB
1024x768
Vivid
High
NA
NA
Off
HDMI
DTV 720P
Vivid
High
High
Low
Off
No.
Item
Specification
Min.
Typ.
Max.
Remark
1.
Max Luminance
Modele
400
500
cd/m2
(Center1-point/ Ful white pattern)
2.
Luminance uniformity
Luminance
77
3. Contrast Ratio
1000: 1
1400: 1
55LH40/55-UA
40000: 1(DCR) 50000:1(DCR)
WX
Typ
0.279
Typ
55LH40-UA
White
WY
-0.03
0.292
+0.03
4.
Color Coordinates
Xr
0.637
RED
Yr
0.333
Xg
0.287
Green
Yg
0.605
Xb
0.145
Blue
Yb
0.064
5. Color Temperatue
Cool
Typ
0.276
Typ
85% Full white pattern
-0.015
0.283
+0.015
**The W/B Tolerance is
Medium
0.285
± 0.015 for Adjustment
0.293
Dynamic contrast :off
Warm
0.313
Dynamic color :off
0.329
Energy saving mode :off
6.
Color Distortion, DG
10.0
%
7.
Color Distortion,DP
10.0
deg
8.
Color S/N,AM/FM
43.0
dB
9.
Color Killer Sensitivity
-80
dB
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