Organic electroluminescent element

Details Organic electroluminescent element Organic electroluminescent element

2011-01-04

2011-01-04

Tarazano, D. Lawrence (Department: 1794)

Stock material or miscellaneous articles

Composite

Of inorganic material

C428S917000, C313S504000, C313S506000, C257S040000, C257S103000, C585S027000

Reexamination Certificate

active

07862904

ABSTRACT:
The present invention relates to the improvement of phosphorescent organic electroluminescent devices by using materials of the formula in the hole blocking layer.

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Becker et al. “Light Emitting Polymer Materials: The Working Base for Flexible Full Color Displays.”Mat. Res. Soc. Symp. Proc. vol. 769. Apr. 25, 2003. pp. H1.2.1-H1.2.12.
Sprietzer et al. “Temperature stability of OLEDs using amorphous compounds with spiro-bifluorene core.”SPIE Ole Materials and Devices. vol. 3797. Jul. 19, 1999. pp. 316-324.

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