A metal mesh assembly includes a plurality of composite pattern units, each formed by metal lines and having two substantially perpendicular symmetric axes. The metal lines include driving lines in a driving layer and sensing lines in a sensing layer insulated from the driving layer. The driving lines and the sensing lines each have a pattern with the two substantially perpendicular symmetric axes, and compositely form each composite pattern unit. Optionally, the metal lines further include dummy lines, arranged in at least one of a dummy layer, the driving layer or the sensing layer, which can also participate in the formation of each composite pattern unit, and the dummy lines can also have a pattern with the two substantially perpendicular symmetric axes.