400 Series
1-13
1.7
STN Color LCD (400CS)
The STN Color Liquid Crystal Display (LCD) contains an LCD module, a Fluorescent Lamp
(FL), and an FL inverter board.
1.7.1
STN Color LCD Module
The 400CS STN color LCD is backlit and supports 640x480 pixels with a Video controller.
This video controller includes the functions of Video Graphics Array (VGA).
The 400CS LCD receives vertical and horizontal synchronizing signals, 16-bit data signal, 8-
bit upper block data signal, 8-bit lower block data signal, and has a shift clock for data
transmission. All signals are CMOS-level compatible.
The STN LCD is shown in figure 1-8.
Figure 1-8 STN color LCD
The specifications for the LCD are listed in table 1-4.
Table 1-4 STN color LCD specifications
Item
Specifications
Number of Dots
(dots)
640
x
480
Dot pitch
(mm)
0.33
x
0.33
Display area
(mm)
217.2 (W)
x
164.4 (H)
Contrast
(Typically)
20:1
FL current
(mA)
5.0/3.0
(Bright/Semi-bright)
FL frequency
(KHz)
40