Transparent conductive film and method for forming transparent conductive pattern

• Main Authors: MIYAMURA YASUNAO, YONEDA SHUHEI, TERAO, KUMIKO, YAMAKI SHIGERU
• Format: Patent
• Language: Chinese; English
• Published: 14.11.2023
• Subjects: BASIC ELECTRIC ELEMENTS; CABLES; CONDUCTORS; ELECTRICITY; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES

[Problem] To provide a method for forming different transparent conductive patterns on both principal surfaces of a transparent resin film using a pulsed laser. [Solution] A first transparent conductive film and a second transparent conductive film are formed on a first main surface and a second main surface of a transparent resin film, each of the first transparent conductive film and the second transparent conductive film including a binder resin and a nanostructure network having intersections of metal nanowires, the first transparent conductive film and the second transparent conductive film having an absorption peak in a transmission spectrum based on the nanostructure network, and the thickness of the transparent resin film is 40 [mu] m or more. After first and second protective films are formed on the first and second transparent conductive films, only the first transparent conductive film is etched from the first protective film side by using a pulsed laser having a pulse width shorter than 1 nanoseco