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Title:
LIGHT EMITTING ELEMENT AND METHOD FOR MANUFACTURING LIGHT EMITTING ELEMENT
Document Type and Number:
WIPO Patent Application WO/2015/022922
Kind Code:
A1
Abstract:
This light emitting element (100) comprises: a base (40); a sealing member (101) that is arranged so as to face the base (40); a recessed and projected structure layer (142); a first electrode (92); an organic layer (94); a second electrode (98); and an adhesive layer (103). The recessed and projected structure layer (142), the first electrode (92), the organic layer (94) and the second electrode (98) are sequentially formed on the base (40) in this order. The adhesive layer (103) is arranged between the base (40) and the sealing member (101). The outer edge (142c) of the recessed and projected structure layer (142) is arranged between the inner edge (103a) of the adhesive layer (103) and the outer edge (103b) of the adhesive layer. Since the light emitting element (100) is provided with the recessed and projected structure layer (142), which functions as a diffraction grating, the light emitting element (100) has high light extraction efficiency. In addition, since the light emitting part is sealed with a sufficient sealing performance and deterioration of the light emitting part due to moisture and oxygen is suppressed, the light emitting element (100) has a long service life.

Inventors:
FUKUDA MAKI (JP)
NISHIMURA SUZUSHI (JP)
TORIYAMA SHIGETAKA (JP)
SEKI TAKASHI (JP)
Application Number:
PCT/JP2014/071142
Publication Date:
February 19, 2015
Filing Date:
August 11, 2014
Export Citation:
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Assignee:
JX NIPPON OIL & ENERGY CORP (JP)
International Classes:
H01L51/50; H05B33/04; H05B33/02; H05B33/10
Domestic Patent References:
WO2013136771A12013-09-19
WO2012096368A12012-07-19
WO2011007878A12011-01-20
Foreign References:
JP2012174410A2012-09-10
JP2009283279A2009-12-03
JP2013012500A2013-01-17
JP2006236748A2006-09-07
JP2012174410A2012-09-10
JP2989064B21999-12-13
JPH05238827A1993-09-17
JPH06122852A1994-05-06
JPH06240208A1994-08-30
JPH06299118A1994-10-25
JPH06306329A1994-11-01
JPH07196986A1995-08-01
Attorney, Agent or Firm:
KAWAKITA, KIJURO (JP)
Kijuro Kawakita (JP)
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