Newton ring-preventing film and touch panel

• Main Authors: TAKAHASHI HIROSHI, HAYASHI MASAKI
• Format: Patent
• Language: Chinese; English
• Published: 16.05.2012
• Subjects: ADVERTISING; ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION; BASIC ELECTRIC ELEMENTS; CALCULATING; COMPUTING; COUNTING; CRYPTOGRAPHY; DISPLAY; EDUCATION; ELECTRIC DIGITAL DATA PROCESSING; ELECTRIC SWITCHES; ELECTRICITY; EMERGENCY PROTECTIVE DEVICES; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PERFORMING OPERATIONS; PHYSICS; RELAYS; SEALS; SELECTORS; TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION; TECHNICAL SUBJECTS COVERED BY FORMER USPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TRANSPORTING

Disclosed is a Newton ring-preventing film whereby the occurrence of Newton rings in a resistive film-type touch panel can be effectively inhibited. The Newton ring-preventing film is produced by forming a phase separation structure, which consists of a plurality of polymers, a polymer and a curable resin precursor or a plurality of curable resin precursors, through spinodal decomposition caused by the evaporation of a solvent from a liquid phase comprising one or more polymers, one or more curable resin precursors and the solvent, and then curing said resin precursor(s) to form an anti-Newton ring layer. In this film, the aforesaid anti-Newton ring layer has a surface pattern of protrusions and recesses and isotropically transmits and scatters incident light, the scattering angle showing the maximum scattering light intensity ranges from 0.1 to 10o, and the total light transmittance ranges from 70 to 100%.