Organic electroluminescent materials and devices
CN122255191APending Publication Date: 2026-06-23UNIVERSAL DISPLAY CORP
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- UNIVERSAL DISPLAY CORP
- Filing Date
- 2021-10-08
- Publication Date
- 2026-06-23
AI Technical Summary
Technical Problem
Existing OLED devices struggle to effectively emit saturated red, green, and blue light when achieving full-color display, and the color purity and efficiency of white OLED devices need improvement.
Method used
Organometallic compounds containing specific ligands LA are used to form tridentate, tetradentate, pentadentate, or hexadentate ligands by complexing with metal M, and are then used in the organic layer of OLEDs to improve light emission efficiency and color purity.
Benefits of technology
It enables OLED devices to efficiently emit saturated red, green, and blue light in full-color displays, improving the color purity and efficiency of white OLED devices.
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Smart Images
Figure CN122255191A_ABST
Abstract
The present application relates to organic electroluminescent materials and devices. Provided are organometallic compounds of the formula A I, or Formula II, comprising a ligand L of the formula Also provided are formulations comprising these organometallic compounds. Further provided are OLEDs and related consumer products utilizing these organometallic compounds.
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