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Calculator displays
06-06-2018, 03:28 AM
Post: #17
RE: Calculator displays
The same goes for tiny intelligent character LCDs. Smartphones' characters are usually so much tinier; so why don't they make intelligent character LCDs with characters less than .2"?! They would be useful not just for calculators, but also for displaying status and for debugging on small single-board computers. There was a German company years ago that supposedly had one, but apparently it was only vaporware. I was never able to get one. In my work in the mid to late-1980's, we considered having a custom LCD made for a product we were developing. The NRE at the time was a couple thousand dollars IIRC. It seems like it would be worth it today, to make that and put a standard Hitachi 44780 controller IC on it. I expect the NRE would be less today, in the same way that the cost of PC boards in small quantities has come way, way down, putting them within reach of hobbyists.

http://WilsonMinesCo.com  (Lots of HP-41 links at the bottom of the links page, at http://wilsonminesco.com/links.html#hp41 )
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Messages In This Thread
Calculator displays - Warbucks - 05-28-2018, 06:33 AM
RE: Calculator displays - Harald - 05-28-2018, 01:30 PM
RE: Calculator displays - Helix - 05-30-2018, 12:44 AM
RE: Calculator displays - Harald - 05-30-2018, 07:42 AM
RE: Calculator displays - teenix - 05-30-2018, 08:17 AM
RE: Calculator displays - Accutron - 05-30-2018, 11:46 AM
RE: Calculator displays - Harald - 05-30-2018, 02:11 PM
RE: Calculator displays - Helix - 05-30-2018, 01:32 PM
RE: Calculator displays - Chasfield - 05-31-2018, 06:46 AM
RE: Calculator displays - Warbucks - 05-31-2018, 11:11 AM
RE: Calculator displays - Harald - 05-31-2018, 11:26 AM
RE: Calculator displays - Garth Wilson - 06-05-2018, 09:07 AM
RE: Calculator displays - teenix - 06-05-2018, 01:35 PM
RE: Calculator displays - Garth Wilson - 06-05-2018, 06:33 PM
RE: Calculator displays - jjohnson873 - 06-06-2018, 02:34 AM
RE: Calculator displays - teenix - 06-06-2018, 03:16 AM
RE: Calculator displays - Garth Wilson - 06-06-2018 03:28 AM
RE: Calculator displays - jjohnson873 - 06-06-2018, 01:33 PM
RE: Calculator displays - teenix - 06-06-2018, 11:56 PM
RE: Calculator displays - mfleming - 06-07-2018, 01:24 AM
RE: Calculator displays - andylithia - 06-20-2018, 01:06 AM
RE: Calculator displays - Garth Wilson - 06-20-2018, 04:06 AM
RE: Calculator displays - teenix - 06-20-2018, 06:01 AM



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