Organic light emitting display device and organic light emitting stacked structure
US9842885B2 · kind B2 · utility
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18Claims
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Key dates
| Filing date | Jun 14, 2016 |
| Grant date | Dec 12, 2017 |
| Priority date | — |
| Expiry date | Jun 14, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K59/12
Abstract
Disclosed is an organic light emitting display device. The organic light emitting display device includes an emission part which is disposed between an anode and a cathode and includes an emission layer. The emission part includes at least two emission layers emitting lights of different colors and a recombination zone movement prevention layer. The at least two emission layers each includes at least one host and at least one dopant, and the recombination zone movement prevention layer is disposed on a specific emission layer among the at least two emission layers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.