Organic light-emitting element and manufacturing method of the same, organic display panel, and organic display device
US8847250B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 7, 2012 |
| Grant date | Sep 30, 2014 |
| Priority date | — |
| Expiry date | Mar 14, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2102/351
Abstract
The upper surface portion of a planarization layer is planarized. In an anode formed on the planarization layer, upper surface portions at edge regions by a bank are located above an upper surface portion at a central region. A hole injection transporting layer is layered along the upper surface portions of the anode, and in the hole injection transporting layer, upper surface portions at the edge regions near the bank are located above an upper surface portion at the central region. In an organic light-emitting layer, upper surface portions at the edge regions (regions D1 and D2) near the bank are located above an upper surface portion at the central region (region D3). As a result, thicknesses T11 and T12 of the light-emitting layer are equivalent to a thickness T13 of the organic light-emitting layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.