Toshiba e-studio281c - Description of Operation; Dot Matrix LCD Circuit

e-STUDIO281c/351c/451c © 2005 - 2008 TOSHIBA TEC CORPORATION All rights reserved
CONTROL PANEL
5 - 12
5.4 Description of Operation
5.4.1 Dot matrix LCD circuit
1) Structure
Fig. 5-5
The DSP-LCD-410 is an STN blue mode transmissive type LCD with 640x240-dot display capacity.
It consists of a driver LSI, frame, printed circuit board, and lateral type CCFL backlight.
* STN: Super Twisted Nematic
* CCFL: Cold Cathod Fluorescent Lamp
2) Block diagram
Fig. 5-6
640 x 240 dots
IC1
XSCL
UD0
UD1
UD2
UD3
WF
LP
VDD
GND
V0
VEE
Power
supply
LCDEN
IC2
LCD panel
640 x 240 dots
IC3 IC4
160 160 160 160
IC5
120
IC6
120