Electroluminescent devices and their manufacture
US7888864B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 30, 2003 |
| Grant date | Feb 15, 2011 |
| Priority date | — |
| Expiry date | May 11, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K59/12
Abstract
An EL device comprising a substrate (11), a light emissive structure comprising three series connected LEDs on the substrate (LED 1, 2, 3). Considering the diode LED1, it comprises organic light emissive material disposed (16-1) between an underlying ITO anode (12-1) and an overlying cathode (17-1) that is electrically connected in series to the underlying anode (12-2) of the diode LED2 through the thickness of the organic light emissive material (16-1). The connection can be made by using a wetting agent to prevent the organic light emissive material disposed (16-1) covering contact region (19-1) on the anode (12-2) so that the overlying cathode (17-1) can make a series connection with the underlying anode (12-2).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.