So Ribbon cables are not shielded? what multiwire wire can i use like a ribbon cable to connect to "headers" on a PCB that is shielded?
I think it's before the Display drivers, what circuit is before the display drivers called for LCD and Seven Segment LED displays?
7 Segment LCD VS 7 Segment LED:
which one causes more display noise issues? from ribbon cables? or other noise issues?
Some displays need a voltage doubler circuit that goes to the display
what kind of voltage doubler are used? and what kind of displays need a voltage doubler?
You should really be reading up on noise, cross-talk and signal attenuation on wikipedia.
anyway... one method of reducing / eliminating noise is with differential signalling... This is the signal that gets passed down the line, but requires two wires to pass a signal that one wire could typically do.
You ask what wire you can use... but don't offer any proposed use... where will it be connected, how long do you want it to be, what is the display it will be driving, what data-rates are you planning on using?
... the 7 segment LCD/LED question you have posted is making me re-evaluate my time spent typing ... You really should learn to google around a little bit, as it seems apparent to me that you do not understand the concepts that are being discussed.
Can you please explain why you would use an LCD instead of LED, can you provide any details regarding one over the other?
Are you aware of the function of a voltage doubler? If your battery was a high enough voltage, would you still need one?
I am glad to help work though problems and to help people learn, but I need to determine how much you currently understand about the subject and if you have enough interest to look for information from other sources.
Please do your best to answer the questions provided and we can work out some more of your specific questions...
(Also.. I am unsure why you are so hung-up on ribbon cables... they have been commonly used in computers, and are still present in cellphone, tvs, and many other displays without any issues.... of course, learning how you want to use it would help)