Noritake-Itron MN12832E.

Note that this needs rather a lot of support circuitry, refesh at ~200Hz, 60v, 4.8v AC, 5v DC supplies, etc. Itron also do modules (no greyscales on current models though) which are easier to deal with, ie you send them images and they display
them.

www.itron-ise.co.jp I think.

Hugo