ERAE Electronics Industry EPT4220AP, Technical & Service Manual

Page: 61 / 76

M
ANUAL
_
EPT-4220AP
ERAE ELECTRONICS
61
6-4 Optical Specifications
6-4.1 Electro Optical characteristics specifications (AV 50Hz)
Item Symbol Condition Min Typ Max Unit
White Peak Brightness B
WP
1/25 White
Window
800 900
Cd/
㎡
White Average Brightness B
W
Full white 160 180
Cd/
㎡
Brightness Uniformity B
V
Full white -10 0 +10
％
X X
W
0.280 0.295 0.310
Color Coordinate
Y y
W
Full white
Pattern
0.285 0.300 0.315
Color coordinate Uniformity C
V
Full white -0.01 Avrg 0.010
Office
Room
CR
B R
150 Lux at
center
40:1 50:1
Contrast Ratio
Dark
room
CR
DR
1/25 White
window
1800:
1
2700:
1
* Measure
the dark
position of
panel while
Window
pattern is On
state
Viewing angle Θ
t
Full White
160
Degree
Power Consumption P
W
Full White
220 250
W
Note 1 : The power consumption may increase up to 300W according to displayed image.
2 : All characteristics are measured at least 5 minutes later after Power -On in the
normal ambient temperature.
3 : The brightness of the dark position is measured while the 4%-window pattern is ON
state.
4: Total Power Consumption can be upto 300W according to the displayed pattern.