ORGANIC LIGHT-EMITTING ELEMENT

摘要

An organic light-emitting element, including a substrate, a first electrode, a light-emitting layer containing more than one organic layer film, and a light-emitting element of a second electrode. The light-emitting element is provided with a covering layer. In a wavelength range of 430 nm - 460 nm, at least one point of the attenuation coefficient of an organic material contained in the covering layer is greater than 0.10, and in a wavelength range of 460 nm - 500 nm, the attenuation coefficient is below 0.10. The organic light-emitting element achieves high light-emitting efficiency and color reproducibility, and can be used as a backlight source or illumination for an organic EL display or a liquid crystal display, or as a light source, indication board or identification lamp etc. for devices such as meters.