µPD16634A
9. CAUTIONS ABOUT FRAME INVERSION
In the case of dot inversion, n frame last line and (n+1) frame first line is the same polarity. When write the same
polarity twice; there are two cases as follows.
(1) Last line output in n frame > First line output in (n+1) frame → Positive to write
(2) Last line output in n frame < First line output in (n+1) frame → Not possible to write
µPD16634A has charge buffer and discharge buffer, so need to inversion polarity and write in the case of both
ways.
STB
POL
n frame last line
Discharge buffer
Vertical intervals
(n+1) frame
first line
(n+1) frame
second line
Charge buffer
S2N
VCOM
Hi-Z
Hi-Z
Hi-Z
STB
POL
S2N
n frame last line
Vertical intervals
(n+1) frame
first line
(n+1) frame
second line
Hi-Z
Hi-Z
Hi-Z
VCOM
Hi-Z
Data Sheet S12595EJ2V0DS00
11