Programmable Keyboard Labelling
Original Publication Date: 1985-Apr-01
Included in the Prior Art Database: 2005-Feb-18
This article relates generally to keyboards and more particularly to keys thereon whose identity can be readily changed. It is frequently desirable to change the identity of keys on a typewriter or entry terminal keyboard when a type font or function change is required. This can be accomplished by making all or a portion of the top surfaces of the keys programmable, as seen in Figs. 1a and 1b. Key identity appears from a selectively energized liquid crystal display beneath the transparent face. The display, its driving circuits and read/write memory are all located under the key face, as in Fig. 2. The key body 1 carries a substrate 2 having thereon printed wiring connected with an integrated circuit chip 3 containing drivers and memory.