Help ID this Lorus watch please.

I like watches with a story, and this Lorus watch was the first thing my future wife (Now wife) bought with her first pay cheque.

The screen is purple and it lit up in a vibrant purple colour. She tells me the screen faded and that she was told by a jeweller that it wasn’t repairable.

I had the idea of surprising her by getting a new module put in. First I need to find one, or find out what module it has.

I don’t want to pull it to bits, but am I right in thinking it will be a generic movement and that the purple comes from a coloured screen in the watch?

I’ve fallen at the first fence. I can’t find anything out about the watch. The serial number doesn’t come up.

The watch dates from around the year 2000.

Any thoughts or advice appreciated.