LG 47LM8600 (CHASSIS:LC23E) Service Manual ▷ View online
LGE
Display Division
LG(53)
Establish : 11.08.18 28
Reform : 72
Reform : 72
LG Electronics
LC23E Product Specification
Max 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)
4) A measurement 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
Picture Mode
Backlight
Color Temp
Dynamic Contrast
Dynamic Color
Eye Care
Black Level
RF
PAL
Vivid
100
0
Off
Off
Off
Auto
AV
PAL
Vivid
100
0
Off
Off
Off
Auto
Component
720p
Vivid
100
0
Off
Off
Off
High
RGB
1024x768
Vivid
100
0
Off deactivated
NA
HDMI
DTV
720P(16~235)
Vivid
100
0
Off
Off
Off
Low
Signal
Picture Mode
Backlight
Color Temp
Dynamic Contrast
Dynamic Color
Eye Care
Black Level
NTSC-M
Standard
100
0
Off
Off
Off
Low
RF
PAL
Standard
100
0
Off
Off
Off
Auto
NTSC-J
Standard
100
0
Off
Off
Off
High
AV
PAL
Standard
100
0
Off
Off
Off
Auto
Component
1080p
Standard
100
0
Off
Off
Off
High
RGB
Adj à Test pattern à White
HDMI
DTV 1080p
Standard
100
0
Off
Off
Off
Low
LGE
Display Division
LG(53)
Establish : 11.08.18 29
Reform : 72
Reform : 72
LG Electronics
LC23E Product Specification
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)
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)
▣ Luminance uniformity measure specification
1)
Impress 100 % (255Gray Level) full white pattern at the same peak brightness measurement.
2)
Measure average brightness in LCD Panel 9 points.
Measure average brightness in IOP LED 17 points.
< EDGE LED>
LGE
Display Division
LG(53)
Establish : 11.08.18 30
Reform : 72
Reform : 72
LG Electronics
LC23E Product Specification
1 4 7
2 5 8
3 6 9
2 5 8
3 6 9
< IOP LED / ALEF LED >
2 3 4
10 11 12
9 13 1 14
5
15 16 17
8 7 6
10 11 12
9 13 1 14
5
15 16 17
8 7 6
▣ 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
LGE
Display Division
LG(53)
Establish : 11.08.18 31
Reform : 72
Reform : 72
LG Electronics
LC23E Product Specification
5) Video menu option condition
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
▣ DCR ( Dynamic Contrast Ratio)
1) signal : 100%(255Gray) Full White Window signal & all Black Raster signal(0Gray)
2) Dark room measure condition : Using touch type Color analyzer CA-210 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 100%(255Gray)Full White Window Pattern signal, measure center peak brightness degree Lw of white window
- Impress black Raster signal as contrast ratio measurement signal.
Signal
Picture Mode
Dynamic Contrast Dynamic Color Clear White Black Level
RF
NTSC-M
Vivid
High
High
High
Low
AV
NTSC-J
Vivid
High
High
High
High
Component
1080p
Vivid
High
High
High
High
RGB
1024x768
Vivid
Off – UI disable
NA
HDMI
DTV 1080p
Vivid
High
High
High
Low
DiiVA
DTV 1080p
Vivid
High
High
High
Low
▣ Local Dimming Static Contrast Ratio
1) signal :
HDMI
50 APL Window Pattern [
TOP - White 50%WND(255 Gray) / BOTTOM - Black 50%WND(0 Gray)]
Signal
Picture Mode Dynamic Contrast Dynamic Color
Clear White
Black Level
RF
PAL
Vivid
High
High
High
Auto
AV
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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