NL6448AC33-13 NEC, NL6448AC33-13 Datasheet - Page 2

• Manufacturer Part Number: NL6448AC33-13
• Description: TFT Clolr LCD Module
• Manufacturer: NEC

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STRUCTURE AND FUNCTIONS
TFT 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
2
A TFT color LCD module comprises a TFT LCD panel, LSIs for driving liquid crystal, and the backlight. The
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 voltages
Backlight
Power consumption
R0–R5
G0–G5
B0–B5
CLK
Hsnyc
Vsnyc
DE
V
VHV
CC
LCD timing
controller
Digital
signal
processor
211.2 (H)
a-Si TFT active matrix
262144 colors
640
RGB vertical stripe
0.33 (H)
243.0 (H)
385 g (typ.)
150:1 (typ.)
Horizontal : 45˚ (typ. left side, right side)
Vertical
• Wider viewing angle with contrast ratio
• Wider viewing angle without image reversal: up side (12 o’clock)
• Optimum grayscale ( = 2.2)
42 % (typ. center, to NTSC)
40 ms (max.), “white” to “black”
70 cd/m
6-bit digital signals for each of RGB primary colors, synchronous signals
(Hsync, Vsync), dot clock (CLK), DE signal
3.3 V [5.0 V]
Edge light type, one cold cathode fluorescent lamp
2.1 W (typ. at 3.3 V)
Power
supply
circuit
480 pixels
(at room temperature)
2
(typ.)
0.33 (V) mm
: 20˚ (typ. up side), 40˚ (typ. down side)
158.4 (V) mm
179.0 (V)
Level
shift
LSls
Drivers
8.0 max. (D) mm
H : 640
V : 480
TFT LCD panel
1920 lines
H-driver
Backlight
3 (R, G, B)
: down side (6 o’clock)
: perpendicular
NL6448AC33-13