OPTICAL LAMINATE AND HARDCOAT FILM

• Main Authors: OHISHI KAZUYA, KUWABARA MASAOMI, MORIUCHI HIDEKI, MURATA CHIKARA
• Format: Patent
• Language: English; Korean
• Published: 29.04.2011
• Subjects: DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; FREQUENCY-CHANGING; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICAL LOGIC ELEMENTS; OPTICS; PERFORMING OPERATIONS; PHYSICS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; TRANSPORTING

Disclosed is an optical laminate having a high surface hardness, in which cracking- or cure shrinkage-derived curling can be suppressed, and which can provide a good screen visibility and can be suitably used for LCD or PDP TVs. The optical laminate comprises a light-transparent base and an optical functional layer provided on one side or both sides of the base either directly or through another layer.  The optical laminate is characterized in that the optical functional layer has a thickness of 3 to 50 µm and contains a light-transparent resin and light-transparent particles, and the light-transparent resin has been formed by applying an ionizing radiation to a resin composition containing an ionizing radiation curable polyfunctional acrylate and an ionizing radiation curable fluorinated acrylate in an amount of 5 to 50% by weight of the total weight of the solid content of the optical functional layer.