Method for producing organic electroluminescent display device comprising polydiacetylene layer
US11088348B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2018 |
| Grant date | Aug 10, 2021 |
| Priority date | — |
| Expiry date | Feb 5, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K59/35
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An organic EL display device (100) includes a plurality of pixels, and also includes an element substrate including organic EL elements (3) respectively located in the plurality of pixels and a bank layer (48) defining each of the pixels; and a thin film encapsulation structure (10) covering the plurality of pixels. The thin film encapsulation structure includes a first inorganic barrier layer (12) and an organic barrier layer (14) in contact with a top surface or a bottom surface of the first inorganic barrier layer. The plurality of pixels include a red pixel, a green pixel and a blue pixel. The organic EL display device further includes a polydiacetylene layer (52) selectively provided on a second inorganic barrier layer (16) of the thin film encapsulation structure on the blue pixel and exhibiting a blue color. The polydiacetylene layer is a polymer of 10,12-pentacosadiynoic acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.