Organic light emitting diode devices
US9130193B2 · kind B2 · utility
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2References
30Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 14, 2011 |
| Grant date | Sep 8, 2015 |
| Priority date | — |
| Expiry date | Nov 1, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K50/14
Abstract
A non-coherent light emitting device having at least one organic light emitting or organic charge transporting layer and a structure providing a Bragg grating associated with the light emitting layer is described. The organic light emitting layer having liquid crystalline material is treated to provide alternating zones of isotropic and liquid crystalline material. The combination of alternating zones with the dichroic effects of the aligned zone produces a pseudo 2-D Bragg grating within the light emitting layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.