| 摘要 |
<p>PURPOSE: An optical pressure-sensitive adhesive sheet is provided to have low dielectric constant, to not occur turbidity due to moisturizing, and to have excellent corrosion resistance. CONSTITUTION: An optical pressure-sensitive adhesive sheet comprises a pressure-sensitive adhesive layer. The pressure-sensitive adhesive layer has a dielectric constant of 4 or less at 100 kHz, and moisture-content is 0.65 weight% or more after storing for 120 hours under environment of 60°C and 95% RH. The pressure-sensitive adhesive sheet has 90% or more of total light transmittance, and 3% or less of haze, and has total amount of acrylate ion and methacrylate ion extracted by a pure water under conditions of 100°C and 45 minutes is 300 ng/cm^2 per unit area of the pressure-sensitive adhesive layer measured by an ion chromatograph method.</p> |
