LAMINATED THICK FILM DIELECTRIC STRUCTURE FOR THICK FILM DIELECTRIC ELECTROLUMINESCENT DISPLAY

摘要

PROBLEM TO BE SOLVED: To provide a thick film dielectric electroluminescent display low in operating voltage, having no pixel cross-talk, and improved in operating life.SOLUTION: In an electroluminescent display 10 including a composite thick film dielectric structure, the structure includes: a composite thick film dielectric layer 20; one or more layers 22 of an aluminum oxide provided on the top surface of the composite thick film dielectric layer and doped with other atomic species, the layers having a thickness of 25-50 nm, functioning as a barrier to deleterious ions and being minimally conductive; a barium titanate layer 24; and a thin film phosphor layer 40. At least one of the one or more layers of the aluminum oxide doped with other atomic species is not in direct contact with the phosphor layer.