The topic of these pages are not displays with electroluminescent back light nor other modern displays of various technology, but Russian (or to be more specific: former USSR) military displays based on electroluminescence. These displays are from a technology point of view quite simple, even if they include several interesting displays…
But why use electroluminescent displays at all?? They are tricky to operate as they require 150V to 200V AC at 400Hz to 1kHz. In order to control e.g. a normal 7-segment electroluminescent display, you need 7 AC power sources, which can be individually turned on and off.
Despite the tricky operation, these displays are interesting for two reasons. Beside the well-known 7-segment display, Russian electroluminescent displays are often organized with quite unusual segments. An interesting example is the 8-segment display, which is able to display all digits, the Cyrillic alphabet and (partly) the Latin alphabet. Further, 13-segment displays and displays with special symbols and geometric shapes were produced.
Second, the color emitted by these types of displays appears more “soft” and pleasent to observe. Compared to modern LED based displays, electroluminescent displays have a more textural expression due to the structure of the electroluminescent material used.
And of courser, they are interesting as the are becoming more and more rare
Data sheets seems not to be available as such. However various Russian text books has information about these displays. The following page contains various data like pin-outs, technical information, operation etc. collected from various sources.