Organic electroluminescence element

Implements or apparatus for applying pushing or pulling force – Printer's quoins

Reexamination Certificate

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C257SE51049, C564S308000

Reexamination Certificate

active

07571894

ABSTRACT:
This organic electroluminescence element has an organic light-emitting layer between a positive electrode and a negative electrode, wherein the organic light-emitting layer contains a 1,3,6,8-tetrasubstituted pyrene compound having a specific structure as an organic light-emitting layer forming material. Provided are an organic light-emitting layer forming material that emits blue light with a high color purity, has a high luminous efficiency, and is stable for a long duration of operation, when used singly or as a guest, an organic EL element having a high luminous efficiency and a long operation lifetime, and a high-performance organic EL display that has a high luminous efficiency and a long operation lifetime.

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Machine Translation of Patent Abstracts of Japan document 2001-118682.
C. W. Tang et al.; “Organic electroluminescent diodes”, Appl. Phys. Lett. 51 (12); Sep. 21, 1987. pp. 913-915.
C. W. Tang et al.; “Electroluminescence of doped organic thin films”, J. Appl. Phys. 85 (9); May 1, 1989, pp. 3610-3616.
Matthias Beinhoff et al., “Towards Dendrimers with Solvent-Induced and Quantifyable Polarity Gradient”, Polymeric Materials Science and Engineering, 2001, 84, pp. 751-752, XP008065060.
European Search Report, dated Jun. 20, 2006, issued in corresponding European Application No. 03 72 8002.

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