发明授权
US06565996B2 Organic light-emitting device having a color-neutral dopant in a hole-transport layer and/or in an electron-transport layer 有权
在空穴传输层和/或电子传输层中具有着色中性掺杂剂的有机发光器件

  • 专利标题: Organic light-emitting device having a color-neutral dopant in a hole-transport layer and/or in an electron-transport layer
  • 专利标题(中): 在空穴传输层和/或电子传输层中具有着色中性掺杂剂的有机发光器件
  • 申请号: US09875646
    申请日: 2001-06-06
  • 公开(公告)号: US06565996B2
    公开(公告)日: 2003-05-20
  • 发明人: Tukaram K. HatwarRalph H. Young
  • 申请人: Tukaram K. HatwarRalph H. Young
  • 主分类号: H05B3314
  • IPC分类号: H05B3314
Organic light-emitting device having a color-neutral dopant in a hole-transport layer and/or in an electron-transport layer
摘要:
Disclosed are organic electroluminescent devices comprising a substrate, an anode and a cathode disposed over the substrate, an emission layer (EML) disposed between the anode and the cathode, a hole-transport layer (HTL) disposed between the anode and the emission layer, and an electron-transport layer (ETL) disposed between the cathode and the emission layer. A sublayer of the HTL, the ETL, or both the HTL and the ETL comprises a derivative of anthracene as a color-neutral dopant, the sublayer being adjacent to the EML. A color-neutral dopant is a dopant whose presence does not alter the electroluminescent color of the device.
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