Review: Swiss Micros DM41X

[bkg2018]

(12-28-2020 09:59 PM)Steve Simpkin Wrote:  

(12-28-2020 09:25 PM)Massimo Gnerucci Wrote:  Those segments actually were 14.

I suspect HP looked at dot matrix displays while they were developing the HP-41C as their first LCD calculator around 1978 or so. They may have found the contrast to be too low on the ones they evaluated or perhaps some other technical or availability issue but I'm sure they chose the 14 segment over a dot matrix LCD for a good reason at the time. Even 11 years later the HP-48SX had poor contrast on its dot matrix LCD.

Yes, Or maybe they didn't like that ugly yellow :-)

As of the 14 segments of course you're right, I had 12 in mind and can't think why.

Maybe autonomy was an issue too.