some notes on p15 p16
3. V0, V12, V43, V5 pin
4. VLCD = VDD - VEE, V0 = VDD = 5V, V5= VEE = -23 V
V12 = VDD-2/n(VLCD), V43 = VEE+2/n(VLCD), n = 17 (1/256 duty, 1/17 bias)
5. V0 = VDD, V12 = 1.71V(VDD = 5V) or -0.06V (VDD = 3V),
V43 = -19.71 V(VDD = 5V) or -19.94V (VDD = 3V), V5 = VEE = -23V, no-load condition (1/256 duty, 1/17 bias)
i never saw an lcd with the same ic's for column and row, for sure the voltage thing is something ..... scratching my head
and the missing 8 pins soic, some of them or one of them would-could be a negative supply generator (i think) not installed
maybe theses calculation may help to fine tune the resistors ? and the lm324 could act as buffer(s) something since it's a quad op amp