ANTI-NEWTON-RING FILM AND TOUCH PANEL

摘要

An anti-Newton-ring film for effectively preventing generation of Newton rings in a resistive touch panel is provided. The anti-Newton-ring film is obtained, with the use of a liquid phase containing one or more polymers, one or more curable resin-precursors, and a solvent, through a step for forming a phase-separation structure by spinodal decomposition of (i) a plurality of polymers, (ii) a combination of a polymer and a curable resin-precursor, or (iii) a plurality of curable resin-precursors, from the liquid phase concurrent with evaporation of the solvent, and a step for curing the resin-precursor to form an anti-Newton-ring layer. In the film, the anti-Newton-ring layer has an uneven surface structure, isotropically transmits and scatters an incident light, shows a maximum value of a scattered light intensity at a scattering angle of 0.1 to 10°, and has a total light transmittance of 70 to 100%.

主权项

1. A method for preventing a generation of a Newton ring in a resistive touch panel by using an electrode substrate for a resistive touch panel, which substrate comprises:
an anti-Newton-ring film containing an anti-Newton-ring layer which comprises one or more polymers containing a cellulose ester and a cured product of a plurality of curable resin-precursors containing a penta- to hepta-functional (meth)acrylate, a tri- to tetra-functional (meth)acrylate and a fluorine-containing curable compound and which has a phase-separation structure, wherein the anti-Newton-ring layer has an uneven surface structure, isotropically transmits and scatters an incident light, wherein the anti-Newton-ring film shows a maximum value of a scattered light intensity at a scattering angle of 0.5 to 2°, has a total light transmittance of 70 to 100% and a haze of 2 to 8%; and a transparent conductive layer.