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

• Main Authors: HASHIMOTO NAOKI, KURAMOTO HIROTAKA, HAMAMOTO DAISUKE
• Format: Patent
• Language: English
• Published: 29.08.2013
• 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; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

PROBLEM TO BE SOLVED: To provide: a hard-coated antiglare film that has an extremely low haze value, superior anti-fluorescent lamp glare and anti-face glare properties, and can increase the depth of black in black display by preventing white blur; and a polarizing plate and the like.SOLUTION: A hard-coated antiglare film includes: a hard-coating antiglare layer containing fine particles, which has the total haze value in the range from 0% to 5%. The number Nof convexities that exceed a first standard line, which is parallel with a roughness mean line of a surface roughness profile and is located at the height of 0.1 μm, is at least 15 in a 4-mm long portion at an arbitrary location of the surface of the hard-coating antiglare layer. N, which is the number of convexities each of which exceeds the first standard line such that the segment of the mean line that crosses the convexity has a length of 50 μm or greater, and Nsatisfy the relation 0.4≤N/N≤0.8. The number of convexities each of which exceeds a second standard line, which is parallel with the mean line and is located at the height of 0.2 μm, such that the segment of the mean line that crosses the convexity has a length of 50 μm or less is 10 or less.