NL6448AC30-12 NEC, NL6448AC30-12 Datasheet - Page 2

• Manufacturer Part Number: NL6448AC30-12
• Description: TFT Color LCD Module
• Manufacturer: NEC

2
NL6448AC30 - 12
STRUCTURE AND FUNCTIONS
LCD panel is composed of a TFT array glass substrate superimposed on a color filter glass substrate with liquid
crystal filled in the narrow gap between two substrates. The backlight apparatus is located on the backside of the
LCD panel.
active matrix addressing through signal processor.
backlight by a signal applied to a signal electrode through the TFT switch.
BLOCK DIAGRAM
OUTLINE OF CHARACTERISTICS (at room temperature)
A TFT color LCD module comprises a TFT LCD panel, LSIs for driving liquid crystal, and the backlight. The TFT
RGB (Red, Green, Blue) data signals are sent to LCD panel drivers after modulation into suitable forms for
Each of the liquid crystal cells acts as an electro-optical switch that controls the light transmission from the
Display area
Drive system
Display colors
Number of pixels
Pixel arrangement
Pixel pitch
Module size
Weight
Contrast ratio
Viewing angle (more than the contrast ratio of 10 : 1)
Designed viewing direction
Color gamut
Response time
Luminance
Signal system
Supply voltage
Backlight
Power consumption
VCCOFFO
MODE
R-data
G-data
R-data
Hsync
Vsync
VHV
CLK
V
DE
CC
Supply voltages
for LSIs
Signal
processor
LCD
timing
controller
Power
supply
circuit
192(H)
a-Si TFT active matrix
4096 colors
640
RGB vertical stripe
0.30(H)
241.8(H)
480 g (typ.)
150 : 1 (typ.)
Horizontal : 45 (typ. left side, right side)
Vertical
Upper direction (wider viewing angle without image reversal)
45 % (typ. center, to NTSC)
40 msec. (max.), "white" to "black"
70 cd / m
4-bit digital RGB signals, synchronous signals (Hsync, Vsync), dot clock (CLK)
5 V (Logic, LCD driving)
Cold cathode type one fluorescent lamp, inverter-less
2.7 W (typ.)
480 pixels
144(V) mm
Drivers
level shift
2
0.30(V) mm
178.8(V)
: 25 (typ. up side), 25 (typ. down side)
(typ.)
10 max.(D) mm
Backlight
(640(H)
H-driver
H-driver
TFT LCD panel
480(V))