Color Shift Vacuum Fluorescent Display System

Vacuum Fluorescent Displays (VFD's) have been widely accepted for automotive applications such as electronic instrumentation panels, electronically tuned radios, and information displays because of their self-emissivity, high luminance capability, and high reliability. Color shift capability for VFD's, which is the ability to change color of a given segment, has been discussed as part of the recent automotive display trends towards multi-functional displays with high information content. This paper will report on the VFD color shift system achieved by the use of a Liquid Crystal Color Shutter (LCCS).