NJU6433B
(6) LCD Panel Drive
(6-1) LCD driving volyage generation circuit
The LCD driving voltage generation circuit generates LCD driving bias voltages V1 and V2 from input voltage
VDD-VLCD. It is generated by the bleeder resistance in IC, and after impedance is converted by the voltage
follower, it is supplied to the LCD driving circuit. The VDD and VLCD terminal requires external capacitors for
bias voltage stabilization for display quality as shown in below.
VDD
VLCD
+
NJU6433B internal
VDD
V2
V1
VLCD
+
VLCD
-8-
Ver.2012-10-23