TRANSPARENT CONDUCTIVE FILM
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United States of America Patent
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Issued Date -
Feb 16, 2017
app pub date -
Apr 9, 2015
filing date -
Apr 17, 2014
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Abstract
Provided is a transparent conductive film having excellent moist-heat resistance and capable of maintaining a low specific resistance value. The present invention relates to a transparent conductive film including: a transparent film substrate; at least three undercoat layers; and a crystalline transparent conductive layer in this order, wherein: the at least three undercoat layers include: a first undercoat layer formed by a wet coating method; a second undercoat layer that is a metal oxide layer having an oxygen deficient; and a third undercoat layer that is a metal oxide layer having a stoichiometric composition from a side of the film substrate; the transparent conductive layer has a surface roughness Ra of 0.1 nm or more and 1.6 nm or less; and the transparent conductive film has specific resistance of 1.1×10−4 Ω·cm or more and 3.8×10−4 Ω·cm or less.
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