TRANSPARENT CONDUCTIVE FILM AND METHOD FOR FORMING TRANSPARENT CONDUCTIVE PATTERN

WIPO Patent Application WO/2022/210586

A1

[Problem] To provide a method for forming different transparent conductive patterns on both main surfaces of a transparent resin film using a pulse laser. [Solution] 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 μm 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 first conductive region and a first non-conductive region formed from the first transparent conductive film.

YAMAKI SHIGERU (JP)
YONEDA SHUHEI (JP)
MIYAMURA YASUNAO (JP)
TERAO KUMIKO (JP)

PCT/JP2022/015138

October 06, 2022

March 28, 2022

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SHOWA DENKO KK (JP)

B32B27/18; B32B7/023; B32B7/025; B32B27/26; G06F3/041; G06F3/044; H01B5/14; H01B13/00

WO2015146097A1	2015-10-01
WO2009035059A1	2009-03-19

JP2012020425A	2012-02-02
JP2013105255A	2013-05-30
JP2013211130A	2013-10-10
JP2015185512A	2015-10-22
JP2010244747A	2010-10-28
JP2016222847A	2016-12-28

ARIHARA Motoji et al. (JP)

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