ADHESIVE COMPOSITION FOR ORGANIC EL DISPLAY DEVICES, ADHESIVE LAYER FOR ORGANIC EL DISPLAY DEVICES, POLARIZING FILM WITH ADHESIVE LAYER FOR ORGANIC EL DISPLAY DEVICES, AND ORGANIC EL DISPLAY DEVICE

摘要

The present invention is an adhesive layer for organic EL display devices, which is formed from an adhesive composition that contains a (meth)acrylic polymer and an ultraviolet absorbent, and wherein: the (meth)acrylic polymer contains an alkyl (meth)acrylate (A) that has an alkyl group having 8 or less carbon atoms and an alkyl (meth)acrylate (B) that has an alkyl group having 12-24 carbon atoms; the proportion (a) of the component (A) and the proportion (b) of the component (B) satisfy formula (1) 60 ≤ {(a) + (b)} and formula (2) 1.4 ≤ {(a)/(b)} ≤ 2; and the adhesive layer has a Tg of from -20°C to -5°C, a transmittance at a wavelength of 380 nm of 10% or less, a transmittance at a wavelength of 450 nm of 85% or more, a total light transmittance of 85% or more and a haze of 1% or less. An adhesive layer for organic EL display devices according to the present invention is capable of suppressing deterioration of an organic EL element, while having high transparency, low dielectric characteristics, and excellent peel resistance to drop impact.