White organic light emitting diode
US9735396B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 26, 2015 |
| Grant date | Aug 15, 2017 |
| Priority date | — |
| Expiry date | Oct 19, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2101/10
Abstract
A white organic light emitting diode including a first electrode; a second electrode facing the first electrode; a charge generation region between the first and second electrodes; a first emitting layer to emit light of a first color, the first emitting layer being between the first electrode and the charge generation region; and a second emitting layer to emit light of a second color, the second emitting layer being between the second electrode and the charge generation region, wherein the charge generation region includes a hole generation region to generate holes, an electron generation region to generate electrons, and a depletion prevention region to prevent a depletion region from being generated by the holes and the electrons, the depletion prevention region being between the hole generation region and the electron generation region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.