Rainbow Electronics HD44780 - Manual (Page 36)

HD44780U
36
Connection of Changed Matrix Layout: In the preceding examples, the number of lines correspond to the
scanning lines. However, the following display examples (Figure 20) are made possible by altering the
matrix layout of the liquid crystal display panel. In either case, the only change is the layout. The display
characteristics and the number of liquid crystal display characters depend on the number of common
signals or on duty factor. Note that the display data RAM (DDRAM) addresses for 4 characters
×
2 lines
and for 16 characters
×
1 line are the same as in Figure 19.
COM1
COM8
SEG1
SEG40
COM9
COM16
HD44780
5 × 8 dot, 16-character × 1-line display
(1/5 bias, 1/16 duty cycle)
Figure 20 Changed Matrix Layout Displays