EL display device and method for manufacturing EL display device
US10159120B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 7, 2016 |
| Grant date | Dec 18, 2018 |
| Priority date | — |
| Expiry date | Jun 7, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K59/8722
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An EL display device in which the adhesion between a substrate and a sealing film is increased and in which the occurrence of cracks in the sealing film is reduced is provided. A lower inorganic film (31) has a multilayer structure including a first inorganic layer (34), which is in contact with the substrate and an EL element, and a second inorganic layer (35). The absolute value of the film stress of the first inorganic layer (34) is less than the absolute value of the film stress of the second inorganic layer (35), and the film thickness of the first inorganic layer (34) is less than the film thickness of the second inorganic layer (35).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.