Organic EL device and EL display panel having a low driving voltage and high light emitting frequency, and method for manufacturing
US8310152B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 2, 2008 |
| Grant date | Nov 13, 2012 |
| Priority date | — |
| Expiry date | Dec 2, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2102/103
Abstract
Disclosed is a method for manufacturing an organic EL device which comprises a hole injection layer having a flat surface that is not contaminated. Specifically disclosed method for manufacturing an organic EL device, which comprises a step of forming an anode on a substrate; a step of forming a hole injection layer on the anode; a step of forming an inorganic film on the substrate and the hole injection layer; a step of forming a bank on the inorganic film in such a manner that at least a part of the inorganic film formed on the hole injection layer is exposed; a step of etching the exposed inorganic film by using the bank as a mask so that the hole injection layer is exposed therefrom; and a step of forming an organic light-emitting layer by applying an organic light-emitting material onto the exposed hole injection layer. The hole injection layer contains tungsten oxide or molybdenum oxide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.