Invention Grant
US09577206B2 Organic electroluminescence element and lighting device using same
有权
有机电致发光元件和使用其的照明装置
- Patent Title: Organic electroluminescence element and lighting device using same
- Patent Title (中): 有机电致发光元件和使用其的照明装置
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Application No.: US14772548Application Date: 2014-03-03
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Publication No.: US09577206B2Publication Date: 2017-02-21
- Inventor: Kazuyuki Yamae , Nobuhiro Ide , Hitomichi Takano
- Applicant: PANASONIC CORPORATION
- Applicant Address: JP Osaka
- Assignee: PANASONIC CORPORATION
- Current Assignee: PANASONIC CORPORATION
- Current Assignee Address: JP Osaka
- Agency: Greenblum & Bernstein, P.L.C.
- Priority: JP2013-050585 20130313
- International Application: PCT/JP2014/001149 WO 20140303
- International Announcement: WO2014/141623 WO 20140918
- Main IPC: H01L51/52
- IPC: H01L51/52 ; H01L51/50 ; H01L51/00

Abstract:
The present disclosure relates to an organic electroluminescence element including: a substrate having a light transmissive property; a light diffusion layer; a light transmissive electrode; a light reflective electrode; and multiple light emitting layers spaced from each other. With regard to the m-th light emitting layer being the m-th closest light emitting layer to the light reflective electrode, relations defined by following expressions (2) and (3) are satisfied. In the following expressions, λm represents the weighted average emission wavelength, Ø(λm) represents the phase shift, nm(λm) represents the average refractive index of a medium filling a space between the light reflective electrode and the m-th light emitting layer, and dm represents the distance from the light reflective electrode to the m-th light emitting layer. l is an integer equal to or more than 0. [ FORMULA 1 ] ϕ ( λ m ) × λ m 4 π + l + 0.1 2 λ m ≤ n m ( λ m ) × d m ≤ ϕ ( λ m ) × λ m 4 π + l + 0.6 2 λ m ( 2 ) n m ( λ m ) × d m ≥ 0.6 λ m ( 3 )
Public/Granted literature
- US20160035991A1 ORGANIC ELECTROLUMINESCENCE ELEMENT AND LIGHTING DEVICE USING SAME Public/Granted day:2016-02-04
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