Organic light emitting device
US9406908B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 26, 2014 |
| Grant date | Aug 2, 2016 |
| Priority date | — |
| Expiry date | Jun 26, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K59/32
Abstract
Disclosed is an organic light emitting device comprising an anode; a cathode; and a plurality of stacks formed between the anode and the cathode. The plurality of stacks respectively emit their respective light of colors different from one another, wherein the plurality of stacks include a stack emitting blue light and a stack emitting mixed light of blue light and yellow-green to red light. Because the organic light emitting device includes a stack emitting blue light and a stack emitting mixed light of yellow-green to red light and blue light, blue light having a relatively low efficiency may be emitted from the two stacks, whereby overall light emitting efficiency is improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.