Organic electroluminescent display with improved barrier structure
US7928646B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 17, 2008 |
| Grant date | Apr 19, 2011 |
| Priority date | — |
| Expiry date | Jan 15, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2102/3026
Abstract
An organic electroluminescent display device and fabrication method thereof is provided. The device includes a first substrate having at least one thin film transistor; an electroluminescent unit formed on the first substrate and electrically connect to the thin film transistor; a first protective layer formed on the electroluminescent unit; a second protective layer formed on the first protective layer; and a third protective layer formed on the second protective layer and in contact with the first protective layer. The device further comprises a second substrate sealed to the first substrate to form the electroluminescent unit between the first substrate and second substrate. In the device, the first protective layer comprising inorganic material, the second protective layer comprising organic material and the third protective layer comprising inorganic material are formed on the electroluminescent unit to reduce oxidation of electrodes by preventing infiltration of moisture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.