sorting through my 'box of bits' i came across a raw lcd display, essentially it's a piece of glass with 40 legs.
After much googling i came across some info on lcd displays, but nothing on driver circuits for them.
After experimenting I assume I've found the common pins, (1&40) and if i hold a 3v supply in one hand and touch the pins with a finger i get some sort of output, but now i need my finger for other things!
So... do i just treat LCD's like LED's?
Most google results show displays requiring power of 3 > 7 V for this 3 1/2 digit display.
Do i need pull up / down resistors? and what value ( i'm assuming 15pA per segment)
are they common anode / cathode ? or does this not apply.
Any help would be appreciated.
After much googling i came across some info on lcd displays, but nothing on driver circuits for them.
After experimenting I assume I've found the common pins, (1&40) and if i hold a 3v supply in one hand and touch the pins with a finger i get some sort of output, but now i need my finger for other things!
So... do i just treat LCD's like LED's?
Most google results show displays requiring power of 3 > 7 V for this 3 1/2 digit display.
Do i need pull up / down resistors? and what value ( i'm assuming 15pA per segment)
are they common anode / cathode ? or does this not apply.
Any help would be appreciated.