Touch screen, electronic device comprising same and method for manufacturing same

A method for manufacturing a touch screen, comprising:

• forming black matrix layers, disposed in frame areas, on a transparent substrate by one patterning process;
• forming a thermosetting transparent organic polymer layer covering the substrate, and forming underlying ITO layers disposed on the thermosetting transparent organic polymer layer, metal bridges disposed on the underlying ITO layers, and protective layers disposed on the metal bridges, by one patterning process, wherein the protective layers are configured to prevent the oxidation of the metal bridges and have electric conductivity;
• forming a transparent organic polymer layer, disposed on the protective layers and configured to cover the substrate, by one patterning process, wherein the transparent organic polymer layer is provided with through holes on the protective layers;
• and
• forming a plurality of sensing electrode layers arranged at intervals and in parallel and a plurality of driving electrode layers respectively spaced by the sensing electrode layers, disposed on the transparent organic polymer layer, by one patterning process, wherein each drive electrode makes conductive contact with the respective protective layer via a through hole.