Abstract: The present application may provide a pressure-sensitive adhesive with excellent reliability, which is applied to a flexible device, thereby effectively responding to repeated deformation and recovery, causing no defects (for example, observation of deformation traces and the like) before and after deformation, having excellent cuttability, workability, and recoverability, and causing no lifting, delamination, and/or bubble generation. The present application may also provide a pressure-sensitive adhesive film or an optical film, and a flexible device such as a foldable device or a rollable device, comprising the pressure-sensitive adhesive.

Abstract: An interfacing apparatus and method for setting a control area of a touch screen. The interface apparatus includes a touch screen, an area setting unit to set a selected area of the touch screen as a control area, a function setting unit to set a function to the control area, and a function executing unit to execute the function at the control area. The interface method includes setting the selected area as a control area, setting a function for the control area, and executing the set function if a touch is sensed on the control area.