LG 32LN540B-CN (CHASSIS:LD31B / LD36B) Service Manual ▷ View online
LGE Display Division LG(51)
Establish : 12/08/31 22
Reform: 12/08/31 47
Reform: 12/08/31 47
LG 전자
NetCast 4.0 Low – LC36B Product Specification
9.2.4 Test Condition
※
Color Temperature measure standard specification
▣
Color Temperature measure specification
1) In non-impressed condition, measure White Balance 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 (204 Gray)
4) Measure condition
● Test pattern: 80% Full White pattern
● SET condition : Contrast & Brightness Level Default
● Environment condition : Dark room in the non outside light
● Video menu option condition
※
Luminance & Contrast measure standard specification
▣
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 pattern)
4) A measurement condition
Signal
Picture Mode
Backlight
Color Temp.
Dynamic Contrast Dynamic Color
Eye Care
Black Level
RF
NTSC-M
Standard
100
W50 /M0 / C50
Off
Off
Off
Low
PAL
Standard
100
W50 /M0 / C50
Off
Off
Off
Auto
AV
NTSC-J
Standard
100
W50 /M0 / C50
Off
Off
Off
High
PAL
Standard
100
W50 /M0 / C50
Off
Off
Off
Auto
Component
1080p
Standard
100
W50 /M0 / C50
Off
Off
Off
High
RGB
1024x768
Standard
100
W50 /M0 / C50
Off deactivated
NA
HDMI
DTV 1080p
Standard
100
W50 /M0 / C50
Off
Off
Off
Low
LGE Display Division LG(51)
Establish : 12/08/31 23
Reform: 12/08/31 47
Reform: 12/08/31 47
LG 전자
NetCast 4.0 Low – LC36B Product Specification
● Test pattern : full white pattern(255 Gray)
● SET condition : Contrast & Brightness Level Default
● Environment condition : Dark room in the non outside light
● Video menu option condition
Signal
Picture Mode
Backlight
Color Temp.
Dynamic Contrast
Dynamic Color
Eye Care
Black Level
RF
NTSC-M
Standard
100
0
Off
Off
Off
Low
PAL
Standard
100
0
Off
Off
Off
Auto
AV
NTSC-J
Standard
100
0
Off
Off
Off
High
PAL
Standard
100
0
Off
Off
Off
Auto
Component
1080p
Standard
100
0
Off
Off
Off
High
RGB
Adjust mode à Test pattern à White.
HDMI
DTV 1080p
Standard
100
0
Off
Off
Off
Low
5) Measurement
● Do heat-run LCD module at 5minutes in normal temperature (25℃) 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.
▣
Brightness / Contrast Tracking 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)
● Environment condition : Dark room in the non outside light
● Video menu option condition : Shipment MODE.(In-Stop)
LGE Display Division LG(51)
Establish : 12/08/31 24
Reform: 12/08/31 47
Reform: 12/08/31 47
LG 전자
NetCast 4.0 Low – LC36B Product Specification
▣
Luminance uniformity measure Condition
1) Impress 100 % (255Gray Level) full white pattern at the same peak brightness measurement.
2) Measure brightness L0~L8 in each 9 points P0~P8
- Luminance uniformity(%) = Minimum(L1, L2, L3, …, L8) / Maximum(L1, L2, L3, …, L8) * 100
- Average Luminance = Sum of Luminance(L1, L2, L3, …, L8) / 9
▣
Contrast ratio measure specification
1) Test display signal : 30*30 dots White Window signal & all Black Raster signal
2) Dark room measure condition : : Using touch type Color analyzer CA-100 Dark room in the non outside light
3) Bright room measure condition : In bright room of 150Lx illumination in the panel surface, locate a source of light on the above 45˚of the panel surface.
4) Measure method
● In standard test condition, impress 30*30 dots White Window Pattern signal. Measure center peak brightness degree Lw of white window
● Impress black Raster signal as contrast ratio measurement signal. Measure black brightness degree Lb of PDP central. Calculate the following numerical formula.
Contrast ratio = Lw / Lb
5) Video menu option condition
LGE Display Division LG(51)
Establish : 12/08/31 25
Reform: 12/08/31 47
Reform: 12/08/31 47
LG 전자
NetCast 4.0 Low – LC36B Product Specification
If it does not use Prior measurement, use generally simple test measurement.
The Correct measure specification is followed by IEC61988-2/CD, JAPAN EIAJ-2710
Signal
Picture Mode
Dynamic Contrast
Dynamic Color
Clear White
Black Level
RF
NTSC-M
Vivid
High
High
High
Low
PAL
Vivid
High
High
High
Auto
AV
NTSC-J
Vivid
High
High
High
High
PAL
Vivid
High
High
High
Auto
Component
1080p
Vivid
High
High
High
High
RGB
1024x768
Vivid
Off deactivated
NA
HDMI
DTV 1080p
Vivid
High
High
High
Low
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