Antireflection coatings with optically black layers bring a classy turn‐off appearance to electronic displays. The black layers used in capacitive touch‐panel displays are required to have a large absorption coefficient throughout the visible range, a small wavelength dispersion for absorption, and electrically insulative properties. In article number 2000160, Akihiro Ishii, Mina Yamaguchi and co‐workers report an optically black and electrically insulating thin film with nanostructured Ag–Fe–O phases. The authors’ approach to simultaneously enhancing optical density and electrical resistivity, which are known for their trade‐off relationship, has great potential in the many industries which utilize display panels.