Display device, method for manufacturing same, polyimide film for display device supporting bases, and method for producing polyimide film for display device supporting bases
US9403947B2 · kind B2 · utility
6Cited by
5References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 18, 2013 |
| Grant date | Aug 2, 2016 |
| Priority date | — |
| Expiry date | Jun 18, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31721
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Provided is a display device that can be made thin, lightweight, and flexible, has no problems of cracks and peeling caused by thermal stress, and is excellent in dimension stability and the like. The display device includes: a supporting base including a polyimide film; and a gas barrier layer formed on the supporting base, in which the polyimide film has a transmittance of 80% or more in a wavelength region of from 440 nm to 780 nm, and a coefficient of thermal expansion of 15 ppm/K or less, and has a difference in coefficient of thermal expansion from the gas barrier layer of 10 ppm/K or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.