NL6448AC20-06 데이터 시트보기 (PDF) - NEC => Renesas Technology
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NL6448AC20-06 Datasheet PDF : 24 Pages
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NL6448AC20-06
STRUCTURE AND FUNCTIONS
A TFT color LCD module comprises a TFT LCD panel, LSIs for driving liquid crystal, and a backlight. The 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.
RGB (Red, Green, Blue) data signals are sent to LCD panel drivers after modulation into suitable forms for
active matrix addressing through signal processor.
Each of the liquid crystal cells acts as an electro-optical switch that controls the light transmission from the
backlight by a signal applied to a signal electrode through the TFT switch.
BLOCK DIAGRAM
H – driver
R0 – R5
G0 – G5
B0 – B5
CLK
Hsync
Vsync
DE
DPS
Digital signal
processor
Level shift
LCD timing
controller
960 lines
TFT LCD panel
H : 640 × 3 (RGB)
V : 480
960 lines
H – driver
Power
LSIs
VCC
supply
circuit
Drivers
Backlight
VDD
BRTL
BRTH
GNDB
GND(SG)
Frame(FG)
Inverter
2
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