Display device
US8564195B2 · kind B2 · utility
4Cited by
0References
10Claims
0Family size
Assignee
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Key dates
| Filing date | Feb 5, 2008 |
| Grant date | Oct 22, 2013 |
| Priority date | — |
| Expiry date | Jun 18, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K59/12
Abstract
A display device includes: a first electrode; a second electrode; and an emitting material layer which is interposed between the first electrode and the second electrode, the emitting material layer being doped with an electric charge transport material of which content varies along a thickness direction and comprising a plurality of sub-layers staked in sequence.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.