Composite sheet, substrate for a display element including same, and display device including same
US9804428B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 19, 2012 |
| Grant date | Oct 31, 2017 |
| Priority date | — |
| Expiry date | Jul 17, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24942
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention relates to a composite sheet, to a substrate for a display element including same, and to a display device including same. More specifically, the composite sheet comprises: a reinforcement-impregnated matrix; a coating layer formed on at least one surface of the matrix; and a barrier layer formed on at least one surface of the coating layer, wherein, if an elastic modulus of the matrix is E2 at a temperature of 25° C. and an elastic modulus of the coating layer is E3 at a temperature of 25° C., the ratio of the elastic modulus, i.e. E3/E2, is approximately 5×104 or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.