Organic electroluminescent display with improved barrier...

Details Organic electroluminescent display with improved barrier... Organic electroluminescent display with improved barrier...

2011-04-19

2011-04-19

Patel, Nimeshumar D (Department: 2879)

Electric lamp and discharge devices

With luminescent solid or liquid material

Solid-state type

C313S507000, C313S512000, C445S024000, C445S025000

Reexamination Certificate

active

07928646

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.

REFERENCES:
patent: 2005/0156513 (2005-07-01), Sano et al.
patent: 2006/0152151 (2006-07-01), Seo
patent: 2007/0015429 (2007-01-01), Maeda et al.
patent: 2007/0096636 (2007-05-01), Park et al.
patent: 200637417 (2006-10-01), None

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