Read LG 37LH4900 (CHASSIS:LD91B) Service Manual online
- 7 -
5. Chroma& Brightness
(1) LGD Module
1) Standard Test Condition (The unit has been ‘ON’)
2) Stable for approximately 30 minutes in a dark environment at 25±2ºC.
3) The values specified are at approximate distance 50Cm from the LCD surface
4) Ta=25±2ºC, VLCD=12.0V, fV=60Hz, Dclk=74.25MHz VBR_A=1.65V,ExtVBR_B=100%
2) Stable for approximately 30 minutes in a dark environment at 25±2ºC.
3) The values specified are at approximate distance 50Cm from the LCD surface
4) Ta=25±2ºC, VLCD=12.0V, fV=60Hz, Dclk=74.25MHz VBR_A=1.65V,ExtVBR_B=100%
No. Item Specification
Min.
Typ.
Max.
Remark
1.
Viewing Angle<CR>10>
Right/Left/Up/Down
178
Degree
2.
Luminance Luminance
(cd/m
2
)
400 500
Variation -
1.3
MAX
/MIN
3.
Contrast Ratio
CR
1000
1400
4.
CIE Color Coordinates
White
Wx
0.279
Wy 0.292
Typ
RED Xr
0.639
±0.03
Yr
0.334
Green Xg
0.289
Yg
0.606
Blue Xb
0.145
Yb
0.065
(2) AUO Module
1) Standard Test Condition (The unit has been ‘ON’)
2) Stable for approximately 30 minutes in a dark environment at 25±2ºC.
3) The values specified are at approximate distance 50Cm from the LCD surface
4) Ta=25±2ºC, VLCD=12.0V, fV=60Hz, Dclk=74.25MHz VBR_A=1.65V,ExtVBR_B=100%
2) Stable for approximately 30 minutes in a dark environment at 25±2ºC.
3) The values specified are at approximate distance 50Cm from the LCD surface
4) Ta=25±2ºC, VLCD=12.0V, fV=60Hz, Dclk=74.25MHz VBR_A=1.65V,ExtVBR_B=100%
No. Item Specification
Min.
Typ.
Max.
Remark
1.
Viewing Angle<CR>10>
Right/Left/Up/Down
178
Degree
2.
Luminance Luminance
(cd/m
2
)
400 500
Variation -
1.3
MAX
/MIN
3.
Contrast Ratio
CR
2000
3000
4.
CIE Color Coordinates
White
Wx
0.28
Wy 0.29
Typ
RED Xr
0.64
±0.03
Yr
0.33
Green Xg
0.29
Yg
0.60
Blue Xb
0.15
Yb
0.06
Click on the first or last page to see other 37LH4900 (CHASSIS:LD91B) service manuals if exist.