Transparent conducting film and method for forming transparent conducting

• Main Authors: YONEDA, SHUHEI, MIYAMURA, YASUNAO, TERAO, KUMIKO, YAMAKI, SHIGERU
• Format: Patent
• Language: Chinese; English
• Published: 16.02.2023
• Subjects: BASIC ELECTRIC ELEMENTS; CABLES; CALCULATING; COMPUTING; CONDUCTORS; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; ELECTRICITY; INSULATORS; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; PERFORMING OPERATIONS; PHYSICS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES; TRANSPORTING

To provide a method for forming different transparent conductive patterns on both main surfaces of a transparent resin film using a pulse laser. First and second transparent conductive films containing a nanostructure network having a metal nanowire intersecting part and a binder resin are formed on first and second main surfaces of a transparent resin film. The first and second transparent conductive films have an absorption peak based on the nanostructure network in a light transmittance spectrum. The transparent resin film has a thickness of 40 [mu]m or more. After the formation of first and second protection films on the first and second transparent conductive films, only the first transparent conductive film is etched from the first protection film side by a pulse laser having a pulse width of one nanosecond or shorter and having an absorption peak maximum wavelength based on the nanostructure network of within ±30 nm, and a first transparent conductive pattern is formed on the first main surface from a