We suggest a thermally curable, “sticky” nano-adhesive for future flexible display applications. Due to the low glass transition temperature (Tg), nano-adhesive is readily attachable to various substrates. The adhesive was thermos-curable via an ionic cross-linking reaction within 5 min at 120 ℃. The thickness of the nano-adhesive can be reduced down to 50 nm and formed a uniform, conformal adhesion in a large area.