Title:
ORGANIC ELECTROLUMINESCENT DEVICE AND DISPLAY COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2019/206292
Kind Code:
A9
Abstract:
Disclosed is an organic electroluminescent device, successively comprising, from bottom to top, a substrate, a first electrode, an organic functional material layer and a second electrode, wherein the organic functional material layer comprises a hole transport zone arranged over the first electrode, a luminous layer arranged over the hole transport zone and comprising host and guest materials, and an electron transport zone arranged over the luminous layer, wherein the hole transport zone successively comprises, from top to bottom, a hole injection layer, a hole transport layer and an electron blocking layer; the hole transport layer comprises first and second organic materials; and the HOMO energy level of the first organic material is within the range of -5.2 eV to -5.6 eV, and the HOMO energy level of the second organic material is within the range of -5.4 eV to -5.9 eV, where |HOMOfirst organic material|< |HOMOsecond organic material|.
Inventors:
LI CHONG (CN)
TANG DANDAN (CN)
ZHANG ZHAOCHAO (CN)
ZHANG XIAOQING (CN)
TANG DANDAN (CN)
ZHANG ZHAOCHAO (CN)
ZHANG XIAOQING (CN)
Application Number:
PCT/CN2019/084629
Publication Date:
November 28, 2019
Filing Date:
April 26, 2019
Export Citation:
Assignee:
JIANGSU SUNERA TECH CO LTD (CN)
International Classes:
H01L51/50; H01L27/32
Attorney, Agent or Firm:
PEKSUNG INTELLECTUAL PROPERTY LTD. (CN)
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