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Patent Searching and Data


Title:
ORGANIC ELECTROLUMINESCENT ELEMENT, DISPLAY DEVICE, AND ILLUMINATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/163727
Kind Code:
A1
Abstract:
An organic EL element (10) has two first light emitting units (13A) which each include a first light emitting layer (16A) that has one or two peak wavelengths in the 440-490nm wavelength region. The first light emitting units (13A) are respectively disposed in positions adjacent to the inner side of a first electrode (11) and that of a second electrode (12), and a substrate is disposed outside the first electrode (11) and the second electrode (12). White light obtained by the light emission of the plurality of light emitting units has a continuous emission spectrum over at least the 380-780nm wavelength region and, in terms of the distribution properties of light emitted to the outside of the substrate (18), the luminance of the white light obtained through the substrate (18) is configured to have an approximately uniform value in an angle range of 0-30 degrees from an axis perpendicular to the surface direction of the substrate (18).

Inventors:
TANAKA, Junichi (2837-9 Hachimanpara 4-chome, Yonezawa-sh, Yamagata 28, 〒9921128, JP)
Application Number:
JP2019/005950
Publication Date:
August 29, 2019
Filing Date:
February 19, 2019
Export Citation:
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Assignee:
LUMIOTEC INC. (2837-9, Hachimanpara 4-chome Yonezawa-sh, Yamagata 28, 〒9921128, JP)
International Classes:
H05B33/12; G09F9/30; H01L27/32; H01L51/50; H05B33/02; H05B33/04
Attorney, Agent or Firm:
KOH-EI PATENT FIRM, P.C. (Toranomon East Bldg. 9F, 7-13 Nishi-Shimbashi 1-chome, Minato-k, Tokyo 03, 〒1050003, JP)
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