METHOD FOR PRODUCING MULTILAYER FILM AND METHOD FOR PRODUCING ELECTRONIC DEVICE

WIPO Patent Application WO/2019/059056

A1

The present invention addresses the problem of providing: a method for producing a multilayer film which comprises a layer containing a light emitting material that has high emission efficiency and a long emission lifetime, while being able to be reduced in production cost; and the like. The present invention is a method for producing a multilayer film 10 which comprises a layer that contains a light emitting material. This method for producing a multilayer film 10 comprises: a step A for forming a first coating film 30 on a substrate 20 in the atmospheric environment with use of a coating liquid A that contains the light emitting material; a step B for forming a second coating film 40 on the first coating film 30 in the atmospheric environment after the step A with use of a coating liquid B that is different from the coating liquid A; and a step C for performing drying in the atmospheric environment after the step B. The coating liquid B contains an organic compound which has a highest occupied molecular orbital (HOMO) level of -5.0 eV or less, or an inorganic material or metal complex of an element that is selected from among elements of the first to third rows in group 1 or 2 of the periodic table of the elements, elements in groups 3 to 18 of the periodic table of the elements, lanthanoids and actinoids.

NAKAMURA YUTA (JP)
INOUE SATORU (JP)

PCT/JP2018/033738

March 28, 2019

September 12, 2018

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KONICA MINOLTA INC (JP)

H05B33/10; H01L51/50

JP2013200941A	2013-10-03
JP2016072632A	2016-05-09
JP2017509157A	2017-03-30
JP2011216640A	2011-10-27
JP2000268959A	2000-09-29
JP2014029883A	2014-02-13

KOYO INTERNATIONAL PATENT FIRM (JP)

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