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PDF NL12876AC39_01 Data sheet ( Hoja de datos )

Número de pieza NL12876AC39_01
Descripción TFT COLOR LCD MODULE
Fabricantes NEC 
Logotipo NEC Logotipo



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DOD-M-0550 1/29
TFT COLOR LCD MODULE
mType: NL12876AC39-01
o58 cm (23 Type), WXGA
.cUltra Wide Viewing Angle (H/V 170°)
UHigh luminance (Typ 450 cd/m²)
t48 bit RGB LVDS
efor Multimedia Monitor Applications
SPECIFIChATeIONS(2nd Edition)
PRaEtaLISMINARYThis document is preliminary. All information in this document are subject to change without prior notice
.D NEC Corporation
w NEC Electron Devices
Display Device Operations Unit
w Color LCD Division
w 1st Engineering Department
Approved
.comChecked
t4UPrepared
T. Ito
A. Sawada
Jul. 30,,
2001
Jul. 30,
2001
heeDisplays & Systems Tel. +49 7249 910 152
taSIndustriestr. 16
Fax: +49 7249 4232
D-76298 Stutensee E-Mail: [email protected]
www.DaInternet: http://www.msc-ge.com

1 page




NL12876AC39_01 pdf
DOD - M - 0550 5/29
1. OUTLINE
1.1 STRUCTURE AND PRINCIPLE
NL12876AC39-01 module is composed of the amorphous silicon thin film transistor liquid crystal
display (a-Si TFT LCD) panel structure with driver LSIs for driving the TFT (Thin Film Transistor) array
and a backlight unit.
The a-Si TFT LCD panel structure is injected liquid crystal material into a narrow gap between the TFT
array glass substrate and a color-filter glass substrate.
Color (Red, Green, Blue) data signals from a host system (e.g. PC, signal generator, etc.) are modulated
into best form for active matrix system by a signal processing board, and sent to the driver LSIs which
drive the individual TFT arrays.
The TFT array as an electro-optical switch regulates the amount of transmitted light from the backlight
assembly, when it is controlled by data signals. Color images are created by regulating the amount of
transmitted light through the TFT array of red, green and blue dots.
1.2 APPLICATIONS
Multimedia monitor
1.3 FEATURES
High luminance
Ultra wide viewing angles (Lateral electric field)
High contrast
High definition
8-bit digital RGB signals
Single link LVDS interface
Direct light type
Replaceable backlight unit and inverter
NEC Corporation

5 Page





NL12876AC39_01 arduino
4.4 SUPPLY VOLTAGE SEQUENCE
4.4.1 Sequence for LCD panel signal processing board
VCC 4.8V
Note1 0V
Display
signals
Note2
ON
Tr < 80ms
0ms < t < 35ms
VALID period
DOD - M - 0550 11/29
OFF
Toff > 200ms
0ms < t < 35ms
Note1: In terms of voltage variation (voltage drop) while VCC rising edge is below 4.8V, a
protection circuit may work, and then this product may not work.
Note2: Display signals (DA0+/-, DA1+/-, DA2+/-, DA3+/- and CK+/-) with 100(Characteristic
impedance) must be Low or High-impedance, exclude the VALID period (See above
sequence diagram), in order to avoid that internal circuits is damaged.
If some of display signals of this product are cut while this product is working, even if the
signal input to it once again, it might not work normally. If customer stop display signals,
they should be cut VCC.
4.4.2 Sequence for backlight inverter
Display
signals
Note1
Note2
VALID period
12.0V
VDDB 10.8V
ViBCH
BRTC
Note3 tr
t > 0 ms
Note1: These are the display signals for LCD panel signal processing board.
Note2: The backlight power voltage (VDDB) should be inputted within the valid period of display
signals, in order to avoid unstable data display.
Note3: The tr should be less than 800ms when BRTC terminal [Socket: CN202, Pin No.: 4] (See
"4.5.2 Backlight inverter".) is Open.
NEC Corporation

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