• Patent Title: MATERIAL FOR ORGANIC ELECTROLUMINESCENT DISPLAY DEVICE AND ORGANIC ELECTROLUMINESCENT DISPLAY DEVICE
  • Application No.: US15430919
    Application Date: 2017-02-13
  • Publication No.: US20170250351A1
    Publication Date: 2017-08-31
  • Inventor: Jun TAKAGI
  • Applicant: Japan Display Inc.
  • Priority: JP2016-034871 20160225
  • Main IPC: H01L51/00
  • IPC: H01L51/00 C09K11/06 C09K11/02
MATERIAL FOR ORGANIC ELECTROLUMINESCENT DISPLAY DEVICE AND ORGANIC
ELECTROLUMINESCENT DISPLAY DEVICE
Abstract:
A material for organic electroluminescent display device includes a luminescent dopant part and an assist dopant part. The luminescent dopant part may have an energy of 2.6 eV or higher to 3.0 eV or lower in an excited singlet state S1 level. The assist dopant part may have an energy of 2.4 eV or higher to 3.0 eV or lower in the excited singlet state S1 level. An energy gap ΔEST between the excited singlet state S1 and an excited triplet state T1 may be 0 eV or larger to 2.0 eV or smaller.
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