Light absorption filter, optical filter, manufacturing method thereof, display element intermediate, display element, organic electroluminescent display device, inorganic electroluminescent display device, and liquid crystal display device

Abstract

A light absorption filter includes a light absorption disappearing layer and a wavelength-selective absorption layer. The light absorption disappearing layer contains a resin, a dye having a main absorption wavelength in a range of 400 to 700 nm, and a compound that generates radicals upon ultraviolet irradiation. The wavelength-selective absorption layer contains a resin and a dye having a main absorption wavelength in the same range and excludes any radical-generating compound. The configuration enables controlled light absorption and selective modification of absorption characteristics upon ultraviolet irradiation.

Dependencies are inferred from the claim text.