NL6448AC33-18 NEC, NL6448AC33-18 Datasheet - Page 2

• Manufacturer Part Number: NL6448AC33-18
• Description: 26 cm 10.4 inches / 640 x 480 pixels / 262144 colors / Luminance adjustable / Non anti-glare panel
• Manufacturer: NEC

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.
addressing by the onboard signal processor and sent to the driver LSIs which in turn addresses the individual
TFT cells.
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
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 from a source system is modulated into a form suitable for active matrix
Acting as an electro-optical switch, each TFT cell regulates light transmission from the backlight assembly
Note 1.
Frame and GNDB (Backlight ground) are contacted at the lamp holder.
R0–R5
G0–G5
B0–B5
CLK
Hsync
Vsync
DE
V
V
BRTHL
BRTC
BRTH
BRTL
GND (SG)
Frame
GNDB
CC
DDB
DE/Fixed mode select
SW5
LCD timing
controller
Digital
signal
processor
Inverter
Power
supply
circuit
Data Sheet EN0497EJ1V0DS00
Scan select
SW1 - SW 4
LSls
Drivers
Level
shift
H : 640
V : 480
TFT LCD panel
1920 lines
H-driver
Backlight
NL6448AC33-18A
3 (R, G, B)