Transparent conducting film
AssigneeShowa Denko K. K.
InventorsShigeru Yamaki, Shuhei Yoneda
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Abstract
Provided is a transparent conducting film having a preferable optical property, a preferable electrical property, and further, a superior durability of folding. The transparent conducting film comprises a transparent substrate and a transparent conducting layer formed on at least one of main faces of the transparent substrate, wherein the transparent conducting layer contains a binder resin and a conducting fiber, a cut portion of the transparent conducting film has a straightness of 0.050 mm or less. Preferably, the transparent substrate is a resin film having an elongated resin film or cut out from an elongated film, and can be folded in with a folding axis in the direction perpendicular to the longitudinal direction of the elongated resin film.
Claims20
A transparent conducting film comprising:
- a transparent substrate, and
- a transparent conducting layer formed on at least one of main faces of the transparent substrate,
- wherein a cut portion of the transparent conducting film has a straightness of 0.050 mm or less in accordance with JIS B063, and
- when a resistance value (R0) and a resistance value (R) respectively represent resistance values of the transparent conducting film before and after a folding test of 200,000 times of folding using a clamshell type durability tester in which a curvature radius is set to 2.0 mm, the ratio (R/R0) is 2.0 or less.
Dependencies are inferred from the claim text.