Invention Application
US20160365528A1 ORGANIC LIGHT-EMITTING DISPLAY DEVICE, PRODUCTION METHOD THEREOF AND DISPLAY APPARATUS 审中-公开
有机发光显示装置及其制造方法及显示装置

  • Patent Title: ORGANIC LIGHT-EMITTING DISPLAY DEVICE, PRODUCTION METHOD THEREOF AND DISPLAY APPARATUS
  • Patent Title (中): 有机发光显示装置及其制造方法及显示装置
  • Application No.: US14771671
    Application Date: 2014-10-28
  • Publication No.: US20160365528A1
    Publication Date: 2016-12-15
  • Inventor: Hui Tian
  • Applicant: BOE TECHNOLOGY GROUP CO., LTD
  • Priority: CN201410398412.5 20140814
  • International Application: PCT/CN2014/089675 WO 20141028
  • Main IPC: H01L51/50
  • IPC: H01L51/50 H01L51/52 H01L51/56
ORGANIC LIGHT-EMITTING DISPLAY DEVICE, PRODUCTION METHOD THEREOF AND DISPLAY APPARATUS
Abstract:
This present application discloses an organic light-emitting display device and the production method thereof, and a display apparatus. This organic light-emitting display device comprises an anode, a hole injection layer, a hole transport layer, an organic light-emitting layer, an electron injection layer, an electron transport layer and a cathode, wherein a hole buffering layer is provided between the anode and the hole injection layer or between the hole injection layer and the hole transport layer to limit the injection of excess holes into the organic light-emitting layer. This disclosure further discloses an organic light-emitting display device and the production method thereof, and a display apparatus. In this disclosure, the injection of excess holes into an organic light-emitting layer may be effectively limited by adding a polymer as a hole buffering layer between an anode and a hole injection layer or between a hole injection layer and a hole transport layer to achieve the balanced injection of electrons and holes in an organic light-emitting layer. Therefore, while this disclosure improves the properties such as efficiency, brightness, or the like of the organic light-emitting device, it also is possible to effectively reduce the working voltage of the organic light-emitting device and in turn the energy consumption of the organic light-emitting device.
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