| abstract |
PROBLEM TO BE SOLVED: To provide a near-infrared absorbing adhesive layer containing a diimonium dye even if other dyes such as a near-infrared absorbing dye, a visible light absorbing dye and a neon luminescent absorbing dye other than the diimonium dye are added. An object of the present invention is to provide a means capable of improving the initial absorption spectrum of a pressure-sensitive adhesive optical film. SOLUTION: A near-infrared absorbing adhesive layer containing an acrylic polymer, a diimonium dye, and a dye other than the diimonium dye, and a base material layer, and an aggregate diameter in the near-infrared absorbing adhesive layer A pressure-sensitive adhesive optical film characterized by the presence of a dye aggregate of 100 μm or less. [Selection] Figure 1 |