Actually, it is a "Marilake" display, built by Marilake in the UK, still in
business.
From what I have been able to find, they were installed in British Airways Concordes
Around 1985, to replace a much less attractive 7 segment LED display. The French
Concordes apparently retained the earlier LED type display.
The other article is referring to a different display that replaced the Marilakes.
Most of the references I have found indicate the Marilakes were Plasma displays.
Nothing definitive, however.
www.marilake.com/
Mark
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From: steven(a)malikoff.com steven--- via cctalk <cctalk(a)classiccmp.org>
Sent: Saturday, September 16, 2023 9:37 PM
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Cc: steven(a)malikoff.com steven(a)malikoff.com <steven(a)malikoff.com>
Subject: [cctalk] Re: Concorde cabin display technology?
Andrew said
Just found this article, and apparently the old
displays were replaced
with the new ones shortly after the grounding in 2000/2001. This would
mean they are probably LCDs.
http://www.concordesst.com/returntoflight/mods.html
Also, here's a photo that very clearly shows the refresh:
https://www.jetphotos.com/photo/7009833
Interesting. Searching for 'Marrilite display' (I wonder what that is) turned up
this page, which mentions "There was a plasma display at the front of the cabin
showing the altitude, the air temperature and the current speed in both miles per hour and
Mach number."
https://www.heritageconcorde.com/concorde-cabin--passenger-experience