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Patent Searching and Data


Title:
LIGHT EMITTING MODULE
Document Type and Number:
WIPO Patent Application WO/2017/217111
Kind Code:
A1
Abstract:
This light emitting module (1A) is provided with: a transparent substrate (100); an electroluminescent element (L1) having a light emitting region (R1) provided on one main surface side of the transparent substrate (100) and a non-light emitting region (R2) provided in the periphery of the light emitting region (R1); a light absorbing layer (200) that is provided on the other main surface side of the transparent substrate (100) so as to cover at least an area facing the light emitting region (R1); and a light reflecting layer (300) that is provided on the other main surface side of the transparent substrate (100) so as to cover at least an area facing the non-light emitting region (R2). The light absorbing layer (200) has light absorption characteristics for absorbing light, and the light absorption characteristics are dependent on wavelength. The light reflecting layer (300) has light reflection characteristics for reflecting light, and the light reflection characteristics are dependent on wavelength. During a time when the electroluminescent element (L1) does not emit light, and on the one main surface of the transparent substrate (100), the light reflection characteristics of the light emitting region (R1) are substantially the same as the light reflection characteristics of the non-light emitting region (R2), or the difference in the light reflection characteristics between the light emitting region (R1) and the non-light emitting region (R2) falls within a prescribed range.

Inventors:
KIMURA NAOKI (JP)
OSAWA KOU (JP)
HIRAIWA KENJI (JP)
SEKINE KOUJIROU (JP)
Application Number:
PCT/JP2017/015688
Publication Date:
December 21, 2017
Filing Date:
April 19, 2017
Export Citation:
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Assignee:
KONICA MINOLTA INC (JP)
International Classes:
H05B33/02; G02B5/08; G02B5/22; G02B5/26; H01L51/50
Domestic Patent References:
WO2016080169A12016-05-26
WO2015163067A12015-10-29
WO2015155924A12015-10-15
Foreign References:
JP2015230841A2015-12-21
JP2008192314A2008-08-21
JP2004348971A2004-12-09
JP2015005409A2015-01-08
JP2014115524A2014-06-26
JP2016201323A2016-12-01
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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