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  NEC Electronic Components Datasheet  

NL6448AC33-27 Datasheet

TFT COLOR LCD MODULE

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DATA SHEET
TFT COLOR LCD MODULE
NL6448AC33-27
26 cm (10.4 inches), 640 × 480 pixels, 262,144 colors,
Incorporated two-lamp/Edge-light type backlight
Wide viewing angle
DESCRIPTION
NL6448AC33-27 is a TFT (thin film transistor) active matrix color liquid crystal display (LCD) comprising
amorphous silicon TFT attached to each signal electrode, a driving circuit and a backlight. NL6448AC33-27 has a
built-in backlight. Backlight includes long-life-lamps and the lamps are replaceable.
The 26 cm (10.4 inches) diagonal display area contains 640 × 480 pixels and can display 262,144 colors
simultaneously.
NL6448AC33-27 is suitable for industrial application use, because the viewing angle is wide and the luminance
is high. The viewing direction is also selectable either upper or lower side by changing scan direction.
FEATURES
• Wide viewing angle (with Retardation Film)
• High luminance (250 cd/m2, TYP.)
• Low reflection
• 6-bit digital RGB interface
• Data enable (DE) function
• Incorporated edge type backlight with two long-life-time lamps (one lamp holder, with inverter)
• Lamp holder replaceable (Type No.: 104LHS29L)
• Reversible scan direction
• Best viewing angle select function
• Approved to UL1950 2nd edition and CSA-C22.2 No.950-93 (File No.: E170632)
APPLICATIONS
• Display terminals for control system
• Monitors for process controller
• Personal computers (PC), Word processor
The information in this document is subject to change without notice.
Document No. EN0378EJ1V0DS00 (1st edition)
Date Published December 1998 P
Printed in Japan
©
1998


  NEC Electronic Components Datasheet  

NL6448AC33-27 Datasheet

TFT COLOR LCD MODULE

No Preview Available !

NL6448AC33-27
STRUCTURE AND FUNCTIONS
A color TFT (thin film transistor) LCD module is comprised of a TFT liquid crystal panel structure, LSIs for driving
the TFT array, and a backlight assembly. The TFT panel structure is created by sandwiching liquid crystal material
in the narrow gap between a TFT array glass substrate and a color filter glass substrate. After the driver LSIs are
connected to the panel, the backlight assembly is attached to the backside of the panel.
RGB (red, green, blue) data signals from a source system is modulated into a form suitable for active matrix
addressing by the onboard signal processor and sent to the driver LSIs which in turn addresses the individual TFT
cells.
Acting as an electro-optical switch, each TFT cell regulates light transmission from the backlight assembly when
activated by the data source. By regulating the amount of light passing through the array of red, green, and blue
dots, color images are created with clarity.
BLOCK DIAGRAM
I/F LCD module
R0 - R5
G0 - G5
B0 - B5
CLK
Hsync
Vsync
DE
DPS
Timing
controller
* Scan select
SW1*
VCC
MVA
Power
supply
for LCD
H-driver
1920 lines
480 lines LCD panel
H: 640 × 3 (R, G, B)
V: 480
VDDB
BRTHL
BRTC
BRTH
BRTL
GNDB
GND (SG)
Frame GND
DC/DC
converter
Inverter
Backlight
Remark Frame is not connected to GNDB.
2


Part Number NL6448AC33-27
Description TFT COLOR LCD MODULE
Maker NEC
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NL6448AC33-27 Datasheet PDF






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