- Patent Title: Organic electroluminescent illumination panel, manufacturing method thereof, and organic electroluminescent illumination device with spacers protruding from a second electrode
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Application No.: US16286286Application Date: 2019-02-26
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Publication No.: US11108015B2Publication Date: 2021-08-31
- Inventor: Yoshikazu Sakaguchi
- Applicant: NEC Lighting, Ltd.
- Applicant Address: JP Tokyo
- Assignee: NEC Lighting, Ltd.
- Current Assignee: NEC Lighting, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: JP2012-079905 20120330
- Main IPC: H01L51/52
- IPC: H01L51/52 ; H05B33/04 ; H05B33/10 ; H05B33/26 ; H01L51/00 ; H01L51/56

Abstract:
Provided is a long-life organic electroluminescent illumination panel which is flexible and, even when a load is applied by bending, impact or vibration, can suppress the occurrence of defects in an electrode layer and an organic layer containing an organic electroluminescent material, and which can suppress the occurrence of dark spots due to short circuiting. This organic electroluminescent illumination panel includes: a pair of electrode layers, at least one of which is transparent, between a flexible film substrate and a flexible film sealing material, at least one of which is transparent; and an organic layer containing an organic electroluminescent material which is sandwiched between the pair of electrode layers. This organic electroluminescent illumination panel has multiple spacers which are disposed on an electrode layer laminated on the flexible film substrate so as to pass through the organic layer and another electrode layer.
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