MATERIALS FOR FULL-COLOR ELECTROLUMINESCENT DISPLAYS

New thin-film electroluminescent (EL) materials with blue and broadband emissions recently have been developed that meet the phosphor requirements for commercial multicolor and full-color EL display products. Improvements have been achieved in phosphor luminance, luminous efficiency, emission color, and aging characteristics. This paper reviews the latest advancements in red, green, and blue thin-film phosphors for patterned phosphor EL display applications, and broadband emission phosphors for the filtered white or color-by-white EL display approach. Focus is placed on the new EL materials and the composition modifications that have improved the performance of well-known EL materials.