Teijin Limited

Teijin Chemicals Limited

Haruhiko Itoh

Koichi Imamura

Hitoshi Mikoshiba

Hiroshi Hara

Yuji Tamura

Isao Shiroishi

Kouki Ikeda

Provided is a transparent electroconductive laminate which can prevent the occurrence of Newton rings between two transparent electrode substrates constituting a transparent touch panel. Also provided is a transparent touch panel which comprises the transparent electroconductive laminate. A transparent electroconductive laminate () comprises a transparent organic polymer substrate (), and comprises an uneven-surfaced hardened resin layer () and a transparent electroconductive layer () which are successively laminated on at least one side of the transparent organic polymer substrate. The transparent electroconductive laminate is characterized in that the hardened resin layer comprises a hardening resin component and at least one of ultrafine metal oxide particles (A) and ultrafine metal fluoride particles (B), these particles having an average primary particle diameter of 100 nm or less and being dispersed in the hardening resin component. The contents of the ultrafine particles (A) and (B) in the hardened resin layer are each 1 part by mass or more to less than 20 parts by mass per 100 parts by mass of the hardening resin component. The ratio by mass (A/B) of the ultrafine particles (A) to the ultrafine particles (B) is greater than 0.3. A transparent touch panel () comprises the aforesaid transparent electroconductive laminate ().

Transparent electroconductive laminate and transparent touch panel using the same

The present invention provides a transparent electroconductive laminate suitable for use in combination with a display device such as a liquid crystal display, and a transparent touch panel having the transparent electroconductive laminate. The transparent electroconductive laminate comprises a transparent organic polymer substratehaving, on at least one surface thereof, a hardcoat (HC) layer, an optical interference layer, and a transparent electroconductive layerin this order. The transparent electroconductive laminate satisfies the following conditions: the refractive indexes nand nof the transparent organic polymer substrate and the HC layer satisfy the following formula: |n&#x2212;n|&#x2264;0.02, the thickness of the HC layer is from 1 to 10 &#x3bc;m, the thickness of the optical interference layer is from 5 to 500 nm, the thickness of the transparent electroconductive layer is from 5 to 200 nm, the total light transmittance is 85% or more, and the b* value is from &#x2212;1.0 to less than 1.5 and the transparent touch panel has the transparent electroconductive laminate.

Transparent electroconductive laminate and transparent touch panel

Disclosed is a transparent electroconductive laminate which achieves the required transparency or haze characteristic while having a desirable slipperiness in terms of handleability. Further disclosed is a transparent touch panel having said transparent electroconductive laminate. The transparent laminate () has a transparent organic polymer substrate (), a transparent electroconductive layer () on one face of the transparent organic polymer substrate, and a cured resin layer () with a concavo-convex surface on the other face of the transparent organic polymer substrate, and the transparent touch panel has said transparent electroconductive laminate. The cured resin layer () has a concavo-convex surface by being formed from a coating composition which contains two types of polymerizable components which mutually phase-separate on the basis of the physical difference therebetween.

A transparent conductive laminated body (1) contains a polymer film having a metallic compound layer and a transparent conductive layer laminated sequentially on at least one surface thereof, (2) the metallic compound layer is in contact with the transparent conductive layer, and (3) the metallic compound layer has a thickness of 0.5 nm or more and less than 10.0 nm.

Transparent conductive laminated body and transparent touch-sensitive panel

A transparent electroconductive laminate comprising an organic polymer film having stacked on at least one surface thereof an optical interference layer and a transparent electroconductive layer in this order, the optical interference layer comprising a high refractive-index layer and a low refractive-index layer, with the low refractive-index layer being in contact with the transparent electroconductive layer, and the optical interference layer being composed of a crosslinked polymer, wherein the optical interference layer contains ultrafine particles A comprising a metal oxide and/or a metal fluoride and having a primary diameter of 100 nm or less, and/or at least one of the high refractive-index layer and the low refractive-index layer contains fine particles B having an average primary diameter as large as 1.1 times or more the thickness of the optical interference layer and an average primary diameter of 1.2 &#x3bc;m or less in an amount of 0.5 wt % or less of the crosslinked polymer component. This transparent electroconductive laminate is used as a transparent electrode substrate of a transparent touch panel.

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Hino, Japan

Haruhiko Itoh