amilcar is right. You have to understand the basic concepts of programmable logic hardware description languages to to start with your application problem.
Your problem description is rather vague. I don't e.g. see, how a lookup table is related to "saving the data". Saving which to data to what? "Call to lcd display" - Which kind of lcd display, which representation of data?
In my opinion, programmable logic is not the first choice for sending data to a display, although it's possible of course. Altera development kit examples are mostly using a software processor (Nios II) to perform similar tasks. Lookup tables are easily achieved by a FPGA internal ROM.