Gas barrier clear film, and display substrate and display using the same
US7341766B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 29, 2005 |
| Grant date | Mar 11, 2008 |
| Priority date | — |
| Expiry date | Jul 29, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31663
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
There is provided a gas barrier clear film 10 as a polymer substrate that is flexible, is light, is free from cracking, can be bent, has a high level of heat resistance, is excellent particularly in gas shielding properties, and can be used as an alternative to glass substrates.The gas barrier clear film comprises: a clear resin base material film 11 having a coefficient of linear expansion of 15 to 100 ppm/K and a glass transition temperature Tg of 150 to 300° C.; and a first clear inorganic compound layer 13A, a sol-gel coat layer 15A, and a second clear inorganic compound layer 13B provided in that order on the clear resin base material film 11. The second clear inorganic compound layer 13B has an Ra (average roughness) value of not more than 5 nm and an Rmax (maximum roughness) value of not more than 80 nm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.