Early 12C calculator with blue display ???

[drbarnack]

(07-15-2022 12:45 AM)Marcovecchio Wrote:  Recently, I managed the fix and enhance an HP48G blue LCD with gray polarizers, making it into a high contrast black one, just like the ones on HP49g. The only difference were the polarizers!

Not to derail the thread, but do you have any pointers on what you used to accomplish that? I'd love to "upgrade" my 48GX!