Liquid Crystal Displays with FIP Illuminator

The legibility and usefulness of liquid crystal displays (LCD’s) in automotive applications depends entirely on the type and control of the illumination technique chosen.

The use of a fluorescent indicator panel (FIP) as an illumination source from the backside of an LCD is proposed.

The LCD surface brightness levels and legibility over a wide ambient lighting range are discussed. Three operational modes (transmissive, reflective, and transflective) of the FIP-LCD system are considered.