1357572-66-7Relevant articles and documents
An electroluminescent compound and an electroluminescent device comprising the same
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, (2021/02/05)
The present invention relates to a novel organic light emitting compound represented by chemical formula I, which is used as a material of an organic material layer such as a light emitting layer, a hole transport layer, an electron transport layer, an electron blocking layer, and a light efficiency improvement layer in an organic light emitting device, and thus can realize luminous properties such as remarkably excellent luminous efficiency and quantum efficiency. The present invention also relates to the organic light emitting device comprising the novel organic light emitting compound.
Compound and application thereof, and organic electroluminescent device comprising compound
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Paragraph 0132-0133; 0135-0137; 0150-0155, (2021/02/24)
The invention relates to a compound and application thereof, and an organic electroluminescent device comprising the compound, wherein the compound has a structure shown as a formula (I). According tothe invention, the parent nucleus of the compound provided by the invention is formed by fusing carbazole and an aromatic ring or an aromatic heterocyclic ring, so that the ET of the compound is slightly reduced due to the expansion of the conjugated system, and the injection barrier of charges is reduced so as to make the molecule provided by the invention have lower voltage and higher efficiency; and quinazoline and triazine are matched to serve as electron withdrawing groups, so that carrier transmission in the device is relatively balanced, efficiency roll-off is not easy to cause, the efficiency of the device is obviously improved, and the service life of the device is obviously prolonged.
COMPOSITION AND ORGANIC OPTOELECTRONIC DEVICE AND DISPLAY DEVICE
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Paragraph 0207-0208; 0211-0212; 0229-0230; 0233-0234, (2020/02/19)
A composition including a first compound, the first compound being represented by a combination of Chemical Formula 1 and Chemical Formula 2 bonded together, and a second compound, the second compound being represented by Chemical Formula 3, as well as an organic optoelectronic device and a display device are disclosed In Chemical Formula 1 to Chemical Formula 3, each substituent is the same as described in the specification.