¡ Semiconductor
ML9041
LCD Drive Waveforms
TheCOMandSEGwaveforms(ACsignalwaveformsfordisplay)varyaccordingtotheduty(1/
9, 1/12 and 1/17 duties). See 1) to 3) below.
The relationship between the duty ratio and the frame frequency is as follows:
Duty ratio
1/9
Frame Frequency
75.0Hz
1/12
56.3Hz
1/17
79.4Hz
Note:
At an oscillation frequency (OSC) of 270 kHz
(1) Driving the LCD of one 20–character line (1/9 duty, CSR = L, AS = 0) under the conditions
of the 1–line display mode and the character font of 5 ¥ 7 dots
COM1
Character
COM8
COM9
Cursor
Arbitrator
SEG1
SEG100
ML9041
• COM to COM output Display–OFF common signals.
10
17
40/54
OKI [ OKI ELECTRONIC COMPONETS ]
