- 10 - Document No. VSPF-A028
5. Screen Performance
5.1 Test condition
AC voltage
120/240 VAC 60/50Hz
Video signal
1024X768 @60Hz 0.7Vp-p
Aging times
more than 30min
Temperature
20 to 25 degrees, C.
Relative humidity
40
`
80
Setting
Brightness : 100%
Contrast and Display Image must be set by Auto-setup with test-
pattern on the screen ( Black-Level: 50% ).
Color : NATIVE
Ambient luminance
200
}
50 cd/m
2
Luminance meter
Topcon BM5, BM-7, Prichard 1980A or same equivalent
5.2 Luminance
Luminance
more than 160 cd/m2 : L3(Center point of TFT panel)
Uniformity
more than 65%:(L min / L max ) *100
Contrast
More than 160
(note 4) Judge point for brightness uniformity
Brightness uniformity is judged at nine (9) points on display area:
The brightness uniformity (Buni) is defined as the following equation.
@ @ @
Buni = (
b
Bmax or Bmin
|
Bave
b ~
100 )
^
Bave
@ @
Bmax = Maximum brightness among nine (9) measuring points
Bmin = Minimum brightness among nine (9) measuring points
Bave =Average brightness of (1) to (9)
10%
50%
90%
90%
10%
50%
(5)
(1)
(2)
(3)
(6)
(9)
(8)
(7)
(4)
Summary of Contents for LCD1550X-BK
Page 88: ...SCHEMATIC DIAGRAM POWER LCD1550X Normal Power Save 1ch Pin 4 2ch Pin 1 3ch Pin 2 4ch Pin 5 ...
Page 89: ...SCHEMATIC DIAGRAM PWB MAIN POWER LCD1550X ...
Page 90: ...SCHEMATIC DIAGRAM PWB MAIN INPUT LCD1550X ...
Page 91: ...SCHEMATIC DIAGRAM PWB MAIN SYNC LCD1550X ...
Page 92: ...SCHEMATIC DIAGRAM PWB MAIN TMDS LCD1550X ...
Page 96: ...SCHEMATIC DIAGRAM PWB MAIN ASIC LCD1550X ...
Page 97: ...SCHEMATIC DIAGRAM INVERTER LCD1550X 1ch Q701 B 2ch Q702 B ...
Page 98: ...SCHEMATIC DIAGRAM PWB SW LCD1550X ...
Page 100: ...SCHEMATIC DIAGRAM POWER LCD1550X ...
Page 101: ...SCHEMATIC DIAGRAM PWB MAIN POWER LCD1550X ...
Page 102: ...SCHEMATIC DIAGRAM PWB MAIN INPUT LCD1550X ...
Page 103: ...SCHEMATIC DIAGRAM PWB MAIN SYNC LCD1550X ...
Page 104: ...SCHEMATIC DIAGRAM PWB MAIN TMDS LCD1550X ...
Page 105: ...SCHEMATIC DIAGRAM PWB MAIN MC LCD1550X ...
Page 106: ...SCHEMATIC DIAGRAM PWB MAIN ASIC LCD1550X ...
Page 107: ...SCHEMATIC DIAGRAM INVERTER LCD1550X ...
Page 108: ...SCHEMATIC DIAGRAM PWB SW LCD1550X ...
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