Title:
ORGANIC EL DEVICE AND PRODUCTION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2019/202739
Kind Code:
A1
Abstract:
This organic EL device (100) has a substrate (1), a drive circuit layer (2), a first inorganic protective layer (2Pa), an organic planarizing layer (2Pb), an organic EL element layer (3), a second inorganic protective layer (2Pa2), and a TFE structure (10). The TFE structure has a first inorganic barrier layer (12), an organic barrier layer (14), and a second inorganic barrier layer (16). When viewed from a normal line of the substrate, the organic planarizing layer is formed within a region where the first inorganic protective layer is formed, while an organic EL element is disposed within a region where the organic planarizing layer is formed. The TFE structure has an exterior edge which intersects with a lead-out line (32) and which is situated between an exterior edge of the organic planarizing layer and an exterior edge of the first inorganic protective layer. In a portion where the first inorganic protective layer and the first inorganic barrier layer are in direct contact with each other on the lead-out line, the first inorganic barrier layer has, in a cross-section parallel to the line width direction of the lead-out line, a lateral face that is configured to have a taper angle θ (12) of less than 90°. The organic planarizing layer has a surface which exceeds 50 nm in arithmetic average roughness Ra, while the second inorganic protective layer has a surface that is not more than 50 nm in arithmetic average roughness Ra.
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Inventors:
KISHIMOTO KATSUHIKO
NARUTAKI YOZO
NARUTAKI YOZO
Application Number:
PCT/JP2018/016350
Publication Date:
October 24, 2019
Filing Date:
April 20, 2018
Export Citation:
Assignee:
SAKAI DISPLAY PRODUCTS CORP (JP)
International Classes:
H05B33/04; G09F9/30; H01L27/32; H01L51/50; H05B33/02; H05B33/06; H05B33/22
Domestic Patent References:
| WO2015137205A1 | 2015-09-17 | |||
| WO2015178059A1 | 2015-11-26 |
Foreign References:
| JP6301034B1 | 2018-03-28 | |||
| JP2006156133A | 2006-06-15 | |||
| JP2016225091A | 2016-12-28 | |||
| JP6321310B1 | 2018-05-09 | |||
| JP2013197463A | 2013-09-30 | |||
| JP2014025058A | 2014-02-06 | |||
| JP2009087860A | 2009-04-23 | |||
| JP2015173078A | 2015-10-01 | |||
| JP2017068927A | 2017-04-06 |
Attorney, Agent or Firm:
OKUDA Seiji (JP)
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