What should I get to control an LCD screen?

Projects General Guidance
1

I am doing a project and I need to be able to program the output of anLCD screen that is atleast 5 inch by 4 inch. I also need to be able to take in several voltage inputs, do some calculations on them, then display the results to the screen.

Finding LCD screens does not seem to be the issue. I just do not know what to use to control the LCDS. Should I use an Adruino board? FPGA? Other kind of microprocessor?

Also, when I decide on what to use, how will I know which LCDs are compatible with that?

Thanks in advance for your help.

2

There are plenty of folks who have done just that using an arduino.
There was a post here quite recently of a rather large LCD being controlled - must have been about 16 lines long, I don't remember how many wide.
Post a spec on the LCD you want, we can go from there.

3

I was looking mainly at this LCD:

As well as:

The second one is listed as a "Graphic LCD", but I just need to display about 6-7 lines of text. So I am not sure if that one is ideal.

By the way, I don't have to use an Adruino...if there is an easier to implement solution that works too.

4

Arduino would be good for these. The 2nd even has a bunch of software to go with the 2nd one.

5

Maybe you'll want this too to ease interfacing to it.

Scroll down in the comments, looks like ongoing fixes were being added.

6

Thanks so much, your input is really helpful.

But now which adruino product can i use to control/program these exactly?

7

Pretty much any of them.
Start with an Uno. If you think you're going to need lots of IO or more Serial connections for a future project, then go with a Mega.
If you're going to build the arduino in and make this a permanent project, then maybe consider something with a smaller or thinner footprint.
I have built Prominis into a bunch of scoring machines, but I only needed 1 serial connection.
If you need 1 serial to the LCD display and another serial for a PC or something, then a Mega or a Sanguino would be recommended.
http://shop.moderndevice.com/products/sanguino (get the bundle if you need USB interface)