- 15 - Document No. VSPF-A028
Notes
(note 1) Contrast ratio is defined as the following formula.
Contrast ratio =
Brightness(Luminance) with all pixels at "white"
Brightness with all pixels at "black"
(note 2) Viewing angle is measured as follows:
Z
̨
Y
̛
̛
=0
ѯ
̨
=90
ѯ
(
ʮ
2 o
’
clock)
̨
=0
ѯ
(3 o
’
clock)
X
X
А
̨
=
ʮ
80
ѯ
(9 o
’
clock)
Y
А
Z
А
̨
=270
ѯ
(6 o
’
clock)
TFT LCD Module
Eye point
(note 3) Definition of response time is as follows:
When the display data is changed from white to black, response time is measured.
@ @ @ @ @ @ @ @ @ @ @ @
@ @ @ @ @ @ @ @ @ @ @ @
@ @ @ @ @ @ @ @ @ @ @ @
@ @ @ @ @ @ @ @ @ @ @ @
0
10
90
100
ton
toff
Black
White
Luminance
(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
Summary of Contents for NEC MultiSync LCD1550X LCD1550X LCD1550X
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...
Page 127: ...16 Document No VSPF A028 Bave Average brightness of 1 to 9 10 50 90 90 10 50 5 1 2 3 6 9 8 7 4...
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