Flexible laminate and flexible display provided with same
US10618255B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 26, 2017 |
| Grant date | Apr 14, 2020 |
| Priority date | — |
| Expiry date | Apr 26, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G77/20
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A flexible laminate for which increased flexibility and improved durability can coexist, and a flexible display provided with same, are disclosed. The flexible laminate has at least one unit of a laminated structure in which two hard layers closely adhere to each other with at least one intermediate layer therebetween. When the flexible laminate is bent, neutral planes are formed inside each of the hard layers that closely adhere to each other with the intermediate layer therebetween. The flexible laminate satisfies the following expression: a×ln(tan δ×ET/0.01)≥100. In the expression, a is any value ranging from 200 to 2,000, tan δ represents a loss factor for a substance configuring the intermediate layer, and ET represents an elastic modulus (MPa) of the substance configuring the intermediate layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.