Toshiba Tl000LE User Manual page 8

1.6 SIDELIT LIQUID CRYSTAL
DISPLAY
The sidelit liquid crystal display (LCD) is composed of an LCD module, fluorescent lamp
(FL), and FL inverter. The sidelit LCD is illuminated from the side. Thus, you can read its
clear display even in poorly lit conditions. It receives vertical and horizontal synchronizing
signals, 8-bit data signals (4-bit upper data signal, 4-bit lower data signal), and shift clock for
data transmission. All signals are TTL-level compatible. The specifications are described
in Table 1-3.
The sidelit LCD has two color attribute combinations and the display quality can be adjusted
by the contrast and brightness controls.
A high frequency current is supplied by the FL inverter to illuminated the FL.
The sidelit LCD is shown in Figure 1-6.
Figure 1-6 Sidelit LCD
Table 1-3 Sidelit LCD specifications
Item Specifications
Number of dots (dots)
640 x
400
Dot dimension (rnm) 0.27(W) x 0.27(H)
Dot pitch (rnm) 0.30(W) x 0.30(H)
Display area
(rnm)
202.0(W) x 128.0(H)
Contrast 1
:
4 (Min. )
FL current
(rnA)
7.0 - 7.8
FL frequency (KHz) 25 - 45
1-10