Organic electroluminescence element
US9095033B2 · kind B2 · utility
15Cited by
3References
16Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 8, 2010 |
| Grant date | Jul 28, 2015 |
| Priority date | — |
| Expiry date | Aug 13, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2102/3026
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A top-emission organic electroluminescence device (1) includes in order a first electrode (20), one or more organic layers (30B) including a blue-emitting layer (34B), a second electrode (40), and a capping layer (50), wherein the capping layer (50) is formed of a material that satisfies the expression “n(λ=430 nm)−n(λ=460 nm)>0.08” (where, n(λ=x nm) indicates a refractive index at a wavelength of x nm) and has an extinction coefficient of 0.1 or less at a wavelength of 430 to 500 nm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.