Fluorescent Liquid Crystal Color Display Using a Guest–Host UV Shutter and Phosphor Layers on the Inside of the Cell

Abstract

Fluorescent liquid crystal displays (LCDs) have been demonstrated using a guest–host (GH) LC UV shutter cell. Red, green and blue inorganic phosphor lines were manufactured on a glass substrate and an indium–tin–oxide electrode was coated on a phosphor layer. The GH LC cell was composed of this substrate and the phosphor layer was inside of the cell, as well as the color filter used in the current LCD. A UV light emitting diode or a UV fluorescent lamp was used as an excitation source and the switching properties of the fluorescence intensity and their contrast ratio were measured and discussed.