Optical functional materials and process for producing the same
US6064524A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 29, 1999 |
| Grant date | May 16, 2000 |
| Priority date | — |
| Expiry date | Mar 29, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B1/12
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A antiglare layer 12 having a fine uneven surface is formed directly or through other layer(s) on a transparent substrate film 11, and a layer 13 having a low refractive index, which is lower than the refractive index of the antiglare layer 12, is formed thereon. The refractive index of the antiglare layer 12 is higher than the refractive index of a layer in contact with said antiglare layer 12 on its surface remote from the layer 13 having a low refractive index. An SiO.sub.x film may be used as the layer 13 having a low refractive index. The SiO.sub.x film per se has excellent gas barrier property and antifouling property as an optical functional membrane and is an optical functional material characterized by having excellent moistureproofness, scratch resistance, adhesion to a substrate, transparency, low refractive index, dye, deterioration preventive property, and other properties. A layer 13 having a low refractive index as a surface layer is formed through other layer(s) on a transparent substrate film 11, and at least one of the other layer(s) is a hard coat layer 12 of 0.5 .mu.m or more in thickness, having a high refractive index, composed mainly of a resin. The hard coat…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.