Organic EL (electroluminescent) device

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United States of America Patent

PATENT NO 10651415
APP PUB NO 20180076410A1
SERIAL NO

15822286

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Abstract

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An organic EL (electroluminescent) device includes a translucent substrate, a transparent electrode, a luminescent layer, and a cathode placed over one surface of the translucent substrate, and a light extraction film having unevenness placed on the other surface. The surface of the cathode facing the luminescent layer has a plurality of recesses or protrusions. The Fourier transform image of the surface of the cathode facing the luminescent layer has a surface plasmon absorption suppression area including a spatial frequency v obtained from Eq. (I) and a light scattering area not including spatial frequencies equal to or greater than the spatial frequency v.

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Patent Owner(s)

  • TOPPAN PRINTING CO., LTD.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kagotani, Akihito Taito-ku, JP 22 40
Toda, Toshiki Taito-ku, JP 33 451

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