[msarnoff]

I have seen these throughout the US and Europe and been fascinated by them. Penn Station has (had? been a while) a big one with more segments per character. I’ve been trying forever to find the name of this particular style of segmented displays and get more info on them. The closest I could find is “mosaic display.”

Love this article!

Signed, someone who has an obsession with segmented displays

[badlibrarian]

https://en.wikipedia.org/wiki/Split-flap_display

https://en.wikipedia.org/wiki/Flip-disc_display

[msarnoff]

When I was last at Penn Station in the 2010s their departure board was a mosaic LCD like the article, not a split-flap display:

https://upload.wikimedia.org/wikipedia/commons/b/bd/Penn_Sta...

I do miss the split flap displays at the Boston and Providence Amtrak stations though…

[sho_hn]

It's probably Reitberger's 38-segment AFA alphanumeric LCD:

https://www.reitberger.de/English/Large%20displays/Alphanume...

https://www.reitberger.de/English/Broadsheet/Prospekt_GA_AFA...

These are very common here.

[Aloisius]

The Penn Station passenger display was, according to the NYT, segmented LCD glass made by Signature Technologies in Arizona.

It had 43 segments (each character had a 13 segment column, 17 segments column, then another 13 segment column that was a mirror of the first). You can see the segment shape on the original sign:

https://media.wired.com/photos/59327db4aef9a462de983397/3:2/...

The same segment design was used on in Spain along with a more angular version:

https://web.archive.org/web/20210602143217im_/https://pbs.tw...