Displaying device and lighting device employing organic electroluminescence element
US7928353B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 25, 2009 |
| Grant date | Apr 19, 2011 |
| Priority date | — |
| Expiry date | Mar 28, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2102/3026
Abstract
The Present invention provides an organic EL display and a lighting device having high efficiency. The organic EL display comprises a substrate, a pixel-driving circuit unit, and pixels arranged in the form of a matrix on the substrate. The pixel comprises a light-emitting part, and the light-emitting part is composed of a first electrode placed near to the substrate, a second electrode placed far from the substrate, and at least one organic layer placed between the first and second electrodes. The second electrode has a metal electrode layer having a thickness of 10 nm to 200 nm, and the metal electrode layer comprises a metal part and plural openings penetrating through the layer. The metal part is seamless and formed of metal continuously connected without breaks between any points therein. The openings have an average opening diameter of 10 nm to 780 nm, and are arranged so periodically that the distribution of the arrangement is represented by a radial distribution function curve having a half-width of 5 nm to 300 nm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.