HARD-COATED ANTIGLARE FILM, POLARIZING PLATE AND IMAGE DISPLAY INCLUDING THE SAME, AND METHOD FOR PRODUCING THE HARD-COATED FILM

• Main Authors: HASHIMOTO NAOKI, KURAMOTO HIROTAKA, HAMAMOTO DAISUKE
• Format: Patent
• Language: English
• Published: 21.04.2011
• Subjects: ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; CORRECTING FLUIDS; 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; DYES; FILLING PASTES; FREQUENCY-CHANGING; INKS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICAL LOGIC ELEMENTS; OPTICS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; PHYSICS; POLISHES; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; USE OF MATERIALS THEREFOR; WOODSTAINS

PROBLEM TO BE SOLVED: To provide a hard-coated antiglare film which has an extremely low haze value and antiglare properties and can prevent white blur from occurring. SOLUTION: The hard-coated antiglare film has a hard-coating antiglare layer containing fine particles on at least one surface of a transparent plastic film substrate and a total haze value in a range of 0-5%. The number Ntotalof convexities exceeding a first standard line, which is parallel to a roughness mean line of a surface roughness profile and is located at the height of 0.1 μm, is 15 or less in a 4-mm long portion at an arbitrary location on the surface of the hard-coating antiglare layer. Ntotaland the number N50of convexities, which exceed the first standard line and have 50 μm or less length as line segments when cut at the crossings with the roughness mean line, satisfy 0.4≤N50/Ntotal≤0.8. The number of convexities, which have 50 μm or less length as line segments when cut at the crossings with the roughness mean line, among convexities exceeding a second standard line, which is parallel to the roughness mean line and is located at the height of 0.2 μm, is 10 or less. COPYRIGHT: (C)2011,JPO&INPIT