OLED light source
US8115399B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 19, 2008 |
| Grant date | Feb 14, 2012 |
| Priority date | — |
| Expiry date | Dec 16, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K59/80
Abstract
Organic light emitting diode (OLED) light source includes a plurality of stacked organic light emitting diode units comprised of a removable topmost organic light emitting diode unit and one or more removable underlying organic light emitting diode units. A power source is in electrical communication with the anode and the cathode of the topmost organic light emitting diode unit, wherein the underlying organic light emitting diode units are free from contact with the power source. As such, each OLED is sequentially operated upon removal of the topmost OLED unit, thereby providing redundancy as well as extending the operating lifetime of the OLED light source. Also disclosed are processes for operating the OLED light source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.