Organic compounds containing the naphthanobenzofuran structure and organic electroluminescent devices containing it
By using an organic compound with a naphthanofuran structure as a light-emitting auxiliary layer material in OLED devices, the problem of mismatch between hole and electron transport rates in red light devices is solved, improving the luminous efficiency and lifetime of the devices and reducing the driving voltage, making them suitable for mass production.
CN117247366BActive Publication Date: 2026-06-30SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIALS CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIALS CO LTD
- Filing Date
- 2022-06-07
- Publication Date
- 2026-06-30
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Figure CN117247366B_ABST
Abstract
This invention discloses an organic compound containing a naphthanobenzofuran structure and an organic electroluminescent device made from the organic compound. The organic compound has the structural formula shown in Formula I. This compound has suitable HOMO energy levels, which can better match the HOMO energy levels of the hole transport layer and the HOMO energy levels of the emitting layer. It also has suitable solubility and good thermal stability, and can be used as a red light emitting auxiliary layer material in organic electroluminescent devices. The prepared organic electroluminescent device has low driving voltage, high external quantum efficiency, and long lifespan.
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