provided is a touch panel . the touch panel includes a base and a pressure - sensitive adhesive layer attached to the base and including an acryl - based polymer containing an acryl polymer containing 5 to 30 parts by weight of isobornyl acrylate , and 5 to 40 parts by weight of methyl acrylate in a polymerized form . accordingly , it can effectively inhibit penetration of oxygen , moisture or other impurities at an interface between the base and the pressure - sensitive adhesive layer , or at an interface between a conductor thin film and the pressure - sensitive adhesive layer , and prevent degradation in optical properties such as visibility , etc . due to bubbles generated at the pressure - sensitive adhesive interface . in addition , when the pressure - sensitive adhesive layer is directly attached to the conductor thin film and even exposed to severe conditions such as high temperature or high temperature and high humidity , a change in the resistance of the conductor thin film may be effectively inhibited , and thus the touch panel can be stably driven for a long time .