NL10276BC30-18 NEC, NL10276BC30-18 Datasheet - Page 9

• Manufacturer Part Number: NL10276BC30-18
• Description: TFT DISPLAY, 15"
• Manufacturer: NEC

Specifications of NL10276BC30-18

• Lcd Display Type: XGA
• Display Mode: Active
• Interface Type: LVDS
• Viewing Area (h X W): 228.096mm X 304.128mm
• Supply Voltage: 3.3V
• Operating Temperature Range: -10°C To +70°C
• Pixel Size (h X W): 0.297mm X 0.297mm
• Backlight Type: CCFL
• Display Technology: LCD
• Luminance: 500cd/m2
• Rohs Compliant: Yes
• Pixel Pitch (h X W): 0.297mm X 0.297mm
• Svhc: No SVHC (20-Jun-2011)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

4.3.2 Backlight lamp
Note1: This product consists of 4 backlight lamps, and these specifications are for each lamp.
Note2: The lamp voltage cycle between lamps should be kept on a same phase. "VS" and "VBLH"
Note3: The asymmetric ratio of working waveform for lamps (Lamp voltage peak ratio, Lamp
Note4: The inverter should be designed so that the lamp starting voltage can be maintained for more
Note5: In case "FO" is not the recommended value, beat noise may display on the screen, because of
Note6: Method of lamp cable installation may invite fluctuation of lamp current and voltage or
Lamp current
Lamp voltage
Lamp starting voltage
Lamp oscillation frequency
are the voltage value between low voltage side (Cold) and high voltage side (Hot).
current peak ratio and waveform space ratio) should be less than 5 % (See the following
figure.). If the waveform is asymmetric, DC (Direct current) element apply into the lamp. In
this case, a lamp lifetime may be shortened, because a distribution of a lamp enclosure
substance inclines toward one side between low voltage terminal (Cold terminal) and high
voltage terminal (Hot terminal). When designing the inverter, evaluate asymmetric of lamp
working waveform sufficiently.
than 1 second. Otherwise the lamp may not be turned on.
interference between "FO" and "1/th". Recommended value of "FO" is as following.
asymmetric of lamp working waveform. When designing method of lamp cable installation,
evaluate the fluctuation of lamp current, voltage and working waveform sufficiently.
Pb
Pa
Pa: Supply voltage/current peak for positive, Pb: Supply voltage/current peak for negative
Sa: Waveform space for positive part, Sb: Waveform space for negative part
0
FO =
Parameter
th: Horizontal signal period (See "4.9.2 Timing characteristics".)
n: Natural number (1, 2, 3 ⋅⋅⋅⋅⋅⋅⋅⋅)
Sa
1
4
×
th
1
DATA SHEET DOD-PP-0320 (3rd edition)
× (2n-1)
Symbol
VBLH
Sb
IBL
VS
FO
1,550
1,690
min.
3.0
38
-
⏐Sa - Sb⏐
typ.
580
⏐Pa - Pb⏐
6.0
43
-
-
Sb
Pb
max.
6.5
48
-
-
-
× 100 ≤ 5 %
× 100 ≤ 5 %
mArms
Vrms
Vrms
Vrms
Unit
kHz
NL10276BC30-18
at IBL=6.0mArms:
L= 500cd/m
(Ta= 25°C, Note1)
Note2, Note3,
Note2, Note3,
Note2, Note3
Note4, Note7
Note4, Note7
Ta= -10°C
Ta= 25°C
Remarks
Note3
Note5
2
(typ.)
9