"Bio-Crown" was the second jewelry object ever made— anywhere in the world—that utilized a twisted-nematic liquid crystal display (LCD) for its output device. The LCD has 2 disk image elements that flash at independent rates. One of the "eyes" flashes at a predetermined rate. The rate of the other one is determined by the skin resistance value provided by a pair of electrodes in the head band. Skin resistance supplies one channel in a typical lie detector machine, so this jewel provides some insight into the wearer's internal state.

All power for this jewel is provided by a collection of photovoltaic cells.

LCD, microelectronics, acrylic, gold plated acrylic. photovoltaic cells.

headpiece, 1975