Can a jumbo digital LEd display connected to the Small 16x4 LCd display parallely?

[mone]

Currently am running a small LCD display for my application using MOD bus protocol.I want to have a bigger display as an extension to as my old display is facing only one side of the application.hence i require one more display back to back facing with the higher size.??Can some one helping me a good jumbo LCD display.? or if not possible atleast try helping me out how to integrate a digital jumbo LED display to my LCd display??Do i've to construct any amplification circuit in order to make both of my LED and LCD display to work parallely..??

 

[audioguru]

The driving circuit for an LED display uses a lot more current and is completely different to the driving circuit for an LCD display.

 

[mone]

fine i've a jumbo display which is lampex make. i find in LCd display also K(cathode) and A(Anode).Where does the circuit play with it in LCD displays?