US Patent 7309531 El device

Patent 7309531 was granted and assigned to Nippon Soda Co., Ltd. on December, 2007 by the United States Patent and Trademark Office.

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Patent Inventor Names

Hideaki Gondaira0

Hiroshi Suzuki0

Yoshio Taniguchi0

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Patent abstract

The present invention relates to an EL device which is driven with a lower voltage or power amount, which is superior in interface stability between layers in the device and which has a higher luminance as compared with the use of a conventional electrode, and is characterized in that in the EL device comprising a light emitting layer disposed as an essential layer between two electrodes facing each other, at least one of the electrodes includes a crystalline conductive film whose diffraction intensity ratio of (400)/(222) is 1.0 or more in X-ray diffraction by a θ/2θ method.

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https://pdfpiw.uspto.gov/.piw?Docid=07309531

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