This ultraviolet-curable acrylic adhesive composition, which is for forming an adhesive layer positioned between a polarization film and a cover glass or a cover plastic in an image display device, is characterized by including: a monomer component including an alkyl (meth)acrylate, and/or a partial polymer of said monomer component; an ultraviolet absorber; and a photopolymerization initiator (A) having an absorption band at a wavelength equal to or greater than 400 nm. The ultraviolet-curable acrylic adhesive composition is further characterized in that the transmittance of an adhesive layer formed therefrom is 40% or lower at a wavelength of 380 nm, and 30% or higher at a wavelength of 400 nm.
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