Method of encapsulating an AC power type EL panel
US5085605A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 27, 1990 |
| Grant date | Feb 4, 1992 |
| Priority date | — |
| Expiry date | Aug 27, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1054
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An AC power type EL panel includes an AC power type EL element, thermoplastic adhesive layers formed on all surfaces of the AC power type EL element, and a pair of protective films adhered to cover substantially the entire surfaces of the the thermoplastic adhesive layers and having end portions to be fused to each other to seal the AC power type EL element. A thickness ratio of the protective film to the thermoplastic adhesive layer is within the range of 5:1 to 2:1. Since the thermocompression-bonded end portions of the thermoplastic adhesive layers having poor moisture barrier properties are not exposed between the protective films at the end portions of the AC power type EL panel, penetration of external moisture into the panel can be effectively prevented.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.