The present invention provides a novel heterocyclic compound and an organic light-emitting device using the same. A compound represented by chemical formula 1 can be used as a material of an organic material layer of the organic light-emitting device, and can improve the efficiency, the driving voltage and/or the lifetime characteristics of the organic light-emitting device.

Novel hetero-cyclic compound and organic light emitting device comprising the same

Disclosed is a compound represented by chemical formula 1. Also, disclosed is an organic electric element which comprises a first electrode, a second electrode and an organic material layer between the first electrode and the second electrode, wherein the organic material layer comprises the compound represented by chemical formula 1. If the compound represented by chemical formula 1 is contained in the organic material layer, the light emitting efficiency, stability and lifetime of the organic electric element can be improved.

Compound for organic electric element, organic electric element using same, and electronic device thereof

The present invention provides a novel compound and an organic light emitting device using the same, wherein the compound is represented by chemical formula 1. The compound may improve life characteristics of the organic light emitting device.

Novel compound and organic light emitting device comprising the same

The invention discloses a compound with ketone as a core and application of the compound on an organic electroluminescent device. The organic compound takes ketone as a parent nucleus, and ketone is connected with a nitrogen-containing multi-element heterocyclic aromatic group to form the compound of a D-A structure. The compound has the advantages that molecules are not easy to crystallize or aggregate and the film forming property is good. The compound has relatively high vitrification temperature and molecular heat stability, proper HOMO and LUMO energy levels and relatively high Eg. By means of device structural optimization, the photoelectric performance of the OLED device can be effectively improved, and the service life of the OLED device can be effectively prolonged.

Compound taking triazine as core and application of compound on organic electroluminescence device

The invention provides an organic electroluminescent device and a display device. The organic electroluminescent device comprises an organic light-emitting layer, and the organic light-emitting layercomprises a host material, a sensitizer material and a resonant heat activation retarded fluorescent material. The main material is wide band gap material. The sensitizer material is an excimer composite material. The singlet energy level of the wide band gap material is larger than that of the exciplex. The triplet energy level of the wide band gap material is higher than that of the exciton composite material, the singlet energy level of the exciton composite material is higher than that of the resonant delayed fluorescent material, and the triplet energy level of the exciton composite material is higher than that of the resonant delayed fluorescent material. At that present stage, the invention can overcome the defect of short device life and wide spectrum caused by the luminescence ofthe traditional TADF material.

An organic electroluminescent device and a display device

The invention discloses a boron-containing efficient organic electroluminescent compound and application of the compound to an OLED device. The structural formula of the compound is as shown in the general formula (1). Boron atom as the core extends outward three six-membered rings composed of carbon-carbon single bonds, wherein the carbon-carbon single bonds also can be replaced with carbon-oxygen and carbon-nitrogen bonds; a benzene ring is sandwiched between each two six-membered rings; and each phenyl ring is respectively externally connected to hydrogen, aryl group, heteroaryl group, alkyl group, alkyloxy group, or arylamine group. The material has good fluorescence quantum efficiency and electroluminescent efficiency, is easy to form an amorphous film, and has good heat stability. Thus, the material can be used as a luminescent layer material in an organic electroluminescent device.

Boron-containing organic electroluminescent compound and application to OLED device

The present invention relates to an organic electroluminescent device, which is provided with a substrate, a first electrode, an organic functional material layer and a second electrode in order frombottom to top, wherein the organic functional material layer includes a hole transporting zone, a light emitting layer, and an electron transporting zone on the first electrode in order from bottom totop, wherein the light emitting layer comprises a host material and a guest material, the hole transporting zone comprises a hole injecting layer and/or a hole transporting layer and an electron blocking layer thereon, the electron blocking layer includes a first organic material and a second organic material doped at a mass ratio of 0.5:9.5 to 9.5:0.5, wherein the HOMO energy level of the firstorganic material is between the HOMO energy level of the host material of the light emitting layer and -5.75ev, and the HOMO energy level of the second organic material is between the HOMO energy level of the adjacent hole injection layer/hole transport layer and -5.75ev, and the difference between the LUMO energy level of the first organic material and of the second organic material and the LUMOenergy level of the main material and of the guest material of the light emitting layer is greater or equal to 0.2 ev.

Organic electroluminescent device

The present invention relates to an organic light emission diode device (OLED) structure, especially to a high-efficiency organic light emission diode device of a B-containing compound. The organic light emission diode device structure comprises an anode, a cavity injection/transmission layer, a luminescent layer, an electron injection/transmission layer and a cathode, wherein the luminescent layer comprises main body materials and doped materials; the main body materials are formed by signal materials and are also formed by mixing materials with different structures; and the doped materials are organic compounds containing boron, the energy level difference of the singlet state and the triplet state is not larger than 0.2ev, and the energy level of the singlet state and the energy level of the triplet state of the of the main body materials are both higher than that of the doped materials to prevent energy from passback and avoid reduction of the device luminescence efficiency. The present invention further provides a preparation method of the organic light emission diode device. The preparation method is utilized to obtain the organic light emission diode device which is high in efficiency, long in life and high in purity.

Boron-containing organic light emission diode device and preparation method thereof

The invention discloses an organic electroluminescence compound and application thereof. The structural formula of the compound is as shown in the general formula (1). The material has good fluorescence quantum efficiency and electroluminescent efficiency, is easy to form an amorphous film, and has good heat stability. Thus, the material can be used as a luminescent layer main-body or a doping material in an organic electroluminescent device.

Wang Lichun

Papers

Boron-containing organic electroluminescent compound and application to OLED device

Organic electroluminescent device

Compound taking triazine as core and application of compound on organic electroluminescence device

Boron-containing organic light emission diode device and preparation method thereof

Organic electroluminescence compound and application thereof