Method for manufacturing light extraction substrate for organic light-emitting element, light extraction substrate for organic light-emitting element, and organic light-emitting element comprising same

Abstract

The present invention relates to a method for manufacturing a light extraction substrate for an organic light-emitting element, a light extraction substrate for an organic light-emitting element and an organic light-emitting element comprising the same and, more specifically, to: a method for manufacturing a light extraction substrate for an organic light-emitting element, the method being capable of improving light extraction efficiency of the organic light-emitting element and also increasing luminance uniformity; a light extraction substrate for an organic light-emitting element; and an organic light-emitting element comprising the same. To this end, the present invention provides a method for manufacturing a light extraction substrate for an organic light-emitting element, comprising: a mixture preparation step of preparing a mixture by mixing a plurality of scattering particles with an inorganic binder; a mixture coating step of coating the mixture on a base substrate; a buffer layer formation step of forming a buffer layer by coating an inorganic material on the coated mixture; a calcination step of calcinating the mixture and the buffer layer; a first electrode formation step of forming a first electrode, which is made of a metal, in a crack formed in the mixture and the buffer layer in the calcination step; and a second electrode formation step of forming, on the first electrode, a second electrode electrically connected to the first electrode.

Dependencies are inferred from the claim text.