Emissive display using organic light emitting diodes
US5920080A · kind A · utility
154Cited by
5References
24Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 8, 1998 |
| Grant date | Jul 6, 1999 |
| Priority date | — |
| Expiry date | May 8, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K59/874
Abstract
An organic light emitting device ("OLED") for a color video display. The OLED is a layered structure formed on a substrate. A layer of light emitting organic material is sandwiched between two conductive layers and placed on the substrate. Overlying the conductors and organic layer is a transparent cover layer. The OLED of the present invention includes an innovative microcavity enhancing structure, which restricts light emission in directions parallel to the substrate and provides increased light output toward the viewer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.