| abstract |
The present invention provides a touch panel. The touch panel includes a substrate and a pressure-sensitive adhesive layer attached to the substrate and comprising an acrylic-based polymer containing a polymerized polymer in a polymerized form, the acrylic polymer containing 5 to 30 weights Part by weight of isobutyl (meth)acrylate and 5 to 40 parts by weight of methyl (meth)acrylate. Therefore, the interface between the substrate and the pressure-sensitive adhesive layer, or the penetration of oxygen, moisture or other impurities at the interface between the conductor film and the pressure-sensitive adhesive layer can be effectively suppressed, and the pressure can be prevented. Deterioration of optical properties (eg, visibility) caused by bubbles generated by the interface of the inductive adhesive. In addition, when the pressure-sensitive adhesive layer is directly attached to the conductor film and even exposed to severe conditions (for example, high temperature or high temperature and high humidity), the resistance change of the conductor film can be effectively suppressed, so the touch panel can be used for a long time. Stable drive. |