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Phosphorescent compound and organic light emitting diode device using the same

一种化合物、磷光的技术，应用在OLED器件领域，能够解决发光产率降低等问题

Active Publication Date: 2014-06-11
LG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0024] Referring to Fig. 1, CBP, which is widely used as a host, has a triplet energy level of about 2.6eV, which is larger than that of Firpic or FCNIr used as a blue dopant, thus reducing the luminescence yield.

Method used

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  • Phosphorescent compound and organic light emitting diode device using the same
  • Phosphorescent compound and organic light emitting diode device using the same
  • Phosphorescent compound and organic light emitting diode device using the same

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Embodiment

[0068] An ITO layer was deposited on the substrate and patterned to have an area of ​​3 mm x 3 mm, then washed to form the anode. Load the substrate into a vacuum chamber, and sequentially form a hole injection layer of hexaazatriphenanthrene-hexanitrile (HAT-CN) on the anode Hole-transporting layer of 4-4'-bis[N-(1-naphthyl)-N-phenylamino]biphenyl (NPB) Electron blocking layer of bis(4-(N,N'-xylylamino)phenyl)cyclohexane (TAPC) Emitting material layer of "A-1" phosphorescent compound and FCNIr blue dopant (15%) in formula 5 above Electron transport layer of TmPyPB Electron injection layer of LiF and aluminum cathode

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PUM

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Abstract

The present invention provides a phosphorescent compound of following formula: wherein each of X1 and X2 is independently selected from substituted or non-substituted carboline, dibenzofuran, dibenzothiophene and fluorene. And the invention also provides an organic light emitting diode device using the phosphorescent compound.

Description

[0001] This application claims the benefit of Korean Patent Application No. 10-2012-0138993 filed on December 3, 2012, which is incorporated herein by reference. technical field [0002] The present invention relates to phosphorescent compounds and organic light emitting diode (OLED) devices, and more particularly, to phosphorescent compounds having improved luminous efficiency due to high triplet energy and OLED devices using the same. Background technique [0003] Recently, demands for flat panel display devices having a small footprint are increasing. Among flat panel display devices, OLED devices, which may be called organic electroluminescent devices, are widely introduced. [0004] The OELD device emits light by injecting electrons and holes into the light-emitting compound layer from the cathode as the electron injection electrode and the anode as the hole injection electrode, respectively, so that the electrons and holes are combined to generate excitons and the exci...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F7/08C07F7/10C09K11/06H01L51/54
CPCH01L51/0094C07F7/0814C07F7/10C09K11/06C09K2211/1022C09K2211/1029H10K85/342H10K85/40H10K2102/103C07F7/081
Inventor 金重根宋寅笵徐辅民柳在亨
Owner LG DISPLAY CO LTD
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