NEC MultiSync 20WGX2 Service Manual page 57

2.4.4 Dimming Control Range 2.4.4 Dimming Control Range
Bright ness shall be controlled by OSM less than 25% to 100%. Bright ness shall be
PWM frequency should be ad justed by MPU, and default frequency should be PWM frequency should be ad
3.5 times by Vsync. 3.5 times by Vsync.
. .
2.5 Touch Panel Capability 2.5 Touch Panel Capability
None None
2.5.1 Touch Panel Power Output Connector 2.5.1 Touch Panel Power Output Connector
None None
2.6 White Color Temperature 2.6 White Color Temperature
White color temperature is 6 preset as 9300, 8200, 7500, sRGB (6500), 5000, Native. White color temperature is 6 preset as 9300, 8200, 7500, sRGB (6500), 5000, Native.
Default value of user color should be Native, which is maximum setting for panel. Default value of user color should be Native, which is maximum setting for panel.
Target of color setting Target of color setting
Color Color
Temp. Temp.
9300K 9300K 0.283 0.283
8200K 8200K 0.292 0.292
7500K 7500K 0.299 0.299
6500K 6500K
0.3127 0.3127
(sRGB) (sRGB)
5000K 5000K 0.346 0.346
*) TCO *) TCO ' ' 03 A.2.6.1 03 A.2.6.1
sRGB should follow sRGB should follow
( ( http://www.microsoft.com/hwdev/tech/color/ColorTest.asp http://www.microsoft.com/hwdev/tech/color/ColorTest.asp ) )
controlled by OSM less than 25% to 100%.
justed by MPU, and default frequency should be
Color Coordinate Color Coordinate
Tolerance Tolerance
x x y y
0.297 0.297 ± ±
0.307 0.307 ± ±
0.315 0.315 ± ±
0.3291 0.3291 ± ±
0.359 0.359 ± ±
" " Color temperature variation Color temperature variation
" " Microsoft Windows Color Quality Specification for Liquid Crystal Display OEM Microsoft Windows Color Quality Specification for Liquid Crystal Display OEM
Color Coordinate Color Coordinate
u u
' '
0.015 0.015 0.189 0.189 0.446 0.446
0.015 0.015 0.191 0.191 0.453 0.453
0.015 0.015 0.193 0.193 0.459 0.459
0.015 0.015 0.198 0.198 0.468 0.468
0.015 0.015 0.209 0.209 0.488 0.488
" " should follow. should follow.
5- 5-9 9
Tolerance Tolerance
v v
' '
△ △ u u ' ' v v ' ' ≦ ≦ 0.01* 0.01*
△ △ u u ' ' v v ' ' ≦ ≦ 0.01* 0.01*
△ △ u u ' ' v v ' ' ≦ ≦ 0.01* 0.01*
△ △ u u ' ' v v ' ' ≦ ≦ 0.01* 0.01*
△ △ ≦ ≦
u u ' ' v v ' ' 0.01* 0.01*
' ' s s " " . .