- Tertiary amine derivatives and organic electroluminescent device including the same
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Provided is a tertiary amine derivative, which effectively absorbs high-energy external light sources in the UV region to minimize damage to organic materials inside an organic electroluminescent (EL) device, thereby contributing to a practical improvement of the lifespan of the organic EL device. An organic EL device according to the present invention comprises: a first electrode; a second electrode; one or more organic material layers disposed between the first electrode and the second electrode; and a capping layer, wherein the capping layer includes a tertiary amine derivative represented by formula 1 below: [Formula 1], in which each of substituents are the same as defined in the detailed descriptions of the invention.
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Paragraph 0182-0185
(2021/06/15)
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- Imidazole compound, material for electronic device, electroluminescent device, and electronic device thereof
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The present invention mainly provides a new imidazole compound, which can be used to produce electronic devices that are able to operate at low driving voltage and at high current efficiency. The new imidazole compound of the present invention is represented by the following formula (1): (In the formula (1), R1 and R2 are respectively the same as described in the specification).
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Page/Page column 88
(2017/02/24)
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- Novel imidazole compound and electronic device material thereof, light-emitting element and electronic device capable of achieving an electronic device with low driving voltage and high current efficiency under a condition of forming the electronic device
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The present invention is primarily directed to providing a novel imidazole compound, which is capable of achieving an electronic device with low driving voltage and high current efficiency under a condition of forming the electronic device. The novel imidazole compound of the present invention is represented by the following general formula (1). (In formula (1), R 1 is an alkyl group having 1 to 24 carbon atoms, an aromatic hydrocarbon group having 6 to 24 carbon atoms or an aromatic heterocyclic group having 1 to 24 carbon atoms. R 2 is a functional group of Ar1-Ar2 represented by the following general formula (2). In formula (2), Ar1 is an aromatic hydrocarbon chain or an aromatic heterocyclic chain. Ar2 is a functional group represented by the following general formula of (3), (4), (5), (6), or (7)).
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Paragraph 0086
(2017/11/01)
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- Novel imidazole compound and material for electronic device thereof, light-emitting element and electronic device
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The invention mainly provides a novel imidazole compound. Under the condition that when the novel imidazole compound is used for preparing an electronic device, the electronic device with low driving voltage and high current efficiency can be prepared. The novel imidazole compound provided by the invention is shown as a following general formula (1). (The formula (1) is shown in the description, wherein R1 and R2 are the same as that shown in the description.).
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Paragraph 0169; 0170; 0171
(2017/10/31)
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