Pastes for forming a luminescent layer or insulator layer of a dispersion type electroluminescence element and a dispersion type electroluminescence element

摘要

A phosphor paste suitable for forming a luminescent layer of a dispersion type electroluminescence element, which paste has a dielectric constant of not less than 10 at 1 KHz and 25°C after being solidified, and which comprises a pulverized electroluminescent phosphor, an organic high dielectric substance and at least one compound solidifiable by radiation or which comprises a pulverized electroluminescent phosphor and at least one compound solidifiable by radiation, at least one of the solidifiable compounds having a dielectric constant of not less than 10 at 1 KHz and 25°C when solidified;and a dielectric paste suitable for forming an insulator layer of a dispersion type electroluminescence element, which paste has a dielectric constant of not less than 10 at 1 KHz and 25°C after being solidified, and which comprises at least one high dielectric substance selected from pulverized inorganic high dielectric substances and organic high dielectric substances, and at least one compound solidifiable by radiation or which comprises at least one compound solidifiable by radiation, at least one of the solidifiable compounds having a high dielectric constant after being solidified; and a dispersion type electroluminescence element which comprises a luminescent layer and an insulator layer disposed between a transparent electrode and a back electrode, the luminescent layer and the insulator layer having been produced by forming a layer having a high dielectric constant when solidified from a high dielectric paste, applying a phosphor paste thereto to form a phosphor paste layer, and solidifying the layers with radiation.