LIGHT-TRANSMITTING CONDUCTIVE FILM

PROBLEM TO BE SOLVED: To suppress pattern visibility in a light-transmitting conductive film.SOLUTION: The light-transmitting conductive film comprises (A) a light-transmitting support layer, (B) a support film with a hard coat including a hard coat layer, (C) an optical interference layer, and (D)...

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Bibliographic Details
Main Authors NAKATANI YASUHIRO, HAYASHI HIDEKI
Format Patent
LanguageEnglish
Japanese
Published 20.04.2015
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Summary:PROBLEM TO BE SOLVED: To suppress pattern visibility in a light-transmitting conductive film.SOLUTION: The light-transmitting conductive film comprises (A) a light-transmitting support layer, (B) a support film with a hard coat including a hard coat layer, (C) an optical interference layer, and (D) a light-transmitting conductive layer having an electrode pattern, and has the following properties. (i) The light-transmitting support layer (A) shows a refractive index of 1.6 to 1.7; (ii) the hard coat layer (B) shows a refractive index of 1.48 to 1.52; (iii) the support film with a hard coat exhibits a 5-degree regular reflection spectrum satisfying predetermined requirements, obtained by the measurement on a surface on the hard coat layer (B) side, while blocking light on the opposite side surface; and (iv) the light-transmitting conductive layer (D) exhibits a 5-degree regular reflection spectrum in a wavelength region from 535 nm to 555 nm satisfying predetermined requirements, obtained by the measurement on a surface on the light-transmitting conductive layer (D) side, while blocking light on the opposite side surface. 【課題】光透過性導電性フィルムにおいて、骨見え現象を抑制する。【解決手段】(A)光透過性支持層及び(B)ハードコート層を含有する、ハードコート付き支持フィルム、並びに(C)光学干渉層及び(D)電極用パターン形状を有する光透過性導電層を含有し、(i)光透過性支持層(A)が、屈折率1.6〜1.7を示し、(ii)ハードコート層(B)が、屈折率1.48〜1.52を示し、(iii)ハードコート付き支持フィルムが、反対側の面を遮光しつつハードコート層(B)側の面から測定して得られる5度正反射スペクトルが、所定の要件を満たし、かつ(iv)光透過性導電層(D)が、反対側の面を遮光して光透過性導電層(D)側の面から測定して得られる波長域535nm〜555nmにおける5度正反射スペクトルについて、所定の要件を満たす光透過性導電性フィルム。【選択図】なし
Bibliography:Application Number: JP20130212159