78K0/Lx3 - See it!
User’s Manual
U18759EE2V0UM00
20
3.11 LCD1, 224 segment LCD panel
The
78K0/Lx3 - See it!
board is equipped with a 224 segment LCD panel. The LCD is a transflective
model type operating at 5V supply voltage. It can operate at a eight times multiplex rate. The LCD driver
specification is as following:
LCD driver specification
Mode
Driver voltage generation
Internal resistance division
Bias method
1/4
Timesharing 8
Common signals
8 (COM0-COM7)
Segment number
28 (SEG4-SEG31)
Number of maximum display pixels
224 (28 segments × 8 common)
Table 9: LCD driver specification
The LCD is divided into a character and indicator field. The character field is composed of six 5x7 DOT
matrix characters. The indicator field includes a set of predefined symbols, for instance weekday, battery
and antenna symbols. The outline of the LCD and the corresponding segment assignment is shown
below.
Figure 4: LCD outline
Indicator field
Character field
