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Toppan Printing Co.,Ltd.

Toppan Printing Co.,Ltd. Patent applications
Patent application numberTitlePublished
20100078630Organic Electroluminescence Element, Method for Manufacturing the Same, Image Display Unit and Illuminating Device - In an organic electroluminescent element of the present invention, which has at least a hole transport layer having an inorganic compound and an organic luminescent layer between a first electrode and a second electrode on a substrate, a high light extraction efficiency can be obtained by reflecting light emitted from the organic luminescent layer off the hole transport layer.04-01-2010