| Okudagrams are those funny pastel-on-black affairs seen in TNG and later, and the later Star Trek films, which can be found as desktop backgrounds on the computers of many Trekkies (including me). They are named after Mike Okuda, who created them when he realised that the cheapest way to make cool-looking displays was to draw them onto cellophane, leaving the blank areas black, and then using a white light to backlight them. This was revolutionary, because they had previously been made with lights of different colours, which was vastly more expensive.
The term is more appropriate nowadays because Mike Okuda's wife, Denise Okuda, is in charge of making sure the trendy new video displays (as seen on DS9 and Voyager) get the right Okudagrams shown. | 
