I know, it's not really a TRS-80, it's a Sharp, but it's got the name on it. I have two of these, and I'm very sad that the LCDs are bad and that there is no replacement. Just as an exercise, I'm seeing how much effort it would take to get replacements manufactured. I've drawn up a PDF plan of the LCDs, and even put together some Gerber files for the routing of the electrodes. No luck finding a low-run supplier, though.

Anyway, you can follow the adventure on eevblog, which is where I first posted it because of Dave's LCD video.