993 results about "Organic light emitting device" patented technology

The invention relates to the technical field of preparation of organic photoelectric materials, in particular to an organic light-emitting device and a display or lighting device comprising the organic light-emitting device. A hole transport layer compound of the device is obtained by taking a phenyl and alkyl fixed substituted fluorenyl structure as a core fragment and taking a benzo five-membered ring and a limited substituted benzene ring as two side chains of amido, and is matched with a limiting material of a light-emitting auxiliary layer to manufacture an OLED (Organic Light Emitting Diode) element; the light-emitting efficiency and the working life of the organic light-emitting device are effectively improved, and the application prospect is very good.

The present invention relates to an organic light-emitting device employing, as a host of a light emission layer, an anthracene derivative compound having a characteristic structure by introduction of a benzofuran structure into the anthracene backbone, and as a dopant of the light emission layer, a polycyclic compound having a characteristic structure. The organic light-emitting device according to the present invention is an organic light-emitting device with significantly improved external quantum efficiency and can be advantageously utilized not only for lighting devices but also for various display devices, such as flat, flexible, and wearable displays.

An organometallic complex is represented by general formula (1).M is Pd or Pt. B-A-B is a tetradentate ligand formed by bonding a ring A to rings B. The ring A is a hydrocarbon aromatic ring or heteroaromatic ring that may have a substituent, and is selected from a benzene ring, etc. The substituent that the ring A may have is selected from a linear or branched C1 to C6 alkyl group, etc. Each of the rings B is a monocyclic heteroaromatic ring that may have a substituent, and is selected from a pyridine ring, etc. The substituent that the ring B may have is selected from a linear or branched C1 to C6 alkyl group, etc. Each X-Y is a bidentate ligand, and atoms bonded to M are selected from C, N, and O atoms. The two bidentate ligands do not bond together.

The invention relates to a novel organic electroluminescent material, which ingeniously combines deuterated modification and alkyl substitution through the elaborate design of the molecular structure, and realizes the synergistic improvement of various excellent properties. By introducing deuterium, the chemical stability and thermal stability of the material and a doped material are improved, the luminous efficiency and stability of a device are further greatly improved, and energy loss caused by vibration relaxation can be reduced by performing deuteration on phenyl on a 9, 9-diphenylfluorene unit, so that the efficiency of the device is improved. Alkyl substitution can optimize the energy level structure of the material and promote carrier injection and transmission, thereby improving the current efficiency of the device.

An organometallic compound represented by Formula 1, an organic light-emitting device including the organometallic compound, and an electronic apparatus including the organic light-emitting device:M(L1)n1(L2)n2  Formula 1wherein, in Formula 1,M is a transition metal,L1 is a ligand represented by Formula 2-1,L2 is a ligand represented by Formula 2-2,n1 and n2 are each independently 1 or 2, with the proviso that when n1 is 2, the L1 ligands are identical to or different from each other, and when n2 is 2, the L2 ligands are identical to or different from each other, andL1 is different from L2.

The present application provides a heterocyclic compound, and an organic light-emitting device and a composition for an organic layer in which the heterocyclic compound is contained in an organic layer.

The invention relates to an organic compound, a mixture, an organic light-emitting device and a display panel, and the structural general formula of the organic compound is as shown in the formula (1). The compound can be used as a light-emitting auxiliary material to be applied to an organic light-emitting device for improving the light-emitting efficiency of the device and prolonging the service life of the device, and meanwhile, the device can keep relatively low driving voltage.

The present disclosure relates to an organic compound having the following structure of Formula 1, an organic light emitting diode (OLED) where an electron transport layer and / or a charge generation layer includes the organic compound and an organic light emitting device including the organic light emitting diode. While only the specific moiety in the organic compound is deuterated, the organic compound can implement excellent luminous efficiency and luminous lifespan as a compound where all the carbon atoms are deuterated. The OLED can maximize its luminous efficiency and luminous lifespan with minimizing utilization of expensive deuterium.

An organic light emitting diode and an organic light emitting device including the same are discussed. The organic light emitting diode can include a first compound represented by a following formula, a second compound as a p-type host, and a third compound as an n-type host in an emitting material layer. As a result, the organic light emitting diode and the organic light emitting device have advantages in the driving voltage, the luminous efficiency and the lifespan.

An organic light emitting device having improved driving voltage, efficiency and lifetime, the device comprising a light emitting layer including one or more compounds of Chemical Formula 1, one or more compounds of Chemical Formula 2, and one or more compounds of Chemical Formula 3:wherein: X′1 is N and X′2 is O, or X′1 is O, and X′2 is N; X″ is O or S; one of R′1 to R′7 is linked with Chemical Formula 2A:one of R″1 to R″10 is linked with Chemical formula 3A, and the rest are hydrogen or deuterium:Ar1, Ar2, Ar′1, Ar′2, Ar″1, Ar″2 are each independently a substituted or unsubstituted C6-60 aryl or C2-60 heteroaryl containing one or more of N, O and S; and the other substituents are as defined in the specification.

A compound having a ligand LA of Formula I,is disclosed. In Formula I, ring B is a 5-membered or 6-membered ring; K is a direct bond, O, or S; X is O, S, Se, NR, CRR′, SiRR′, or GeRR′; R1 and R2 are each independently selected from a variety of substituents; each R, R′, RA, and RB is independently hydrogen or a substituent; LA is coordinated to a metal M selected from Os, Ir, Pd, Pt, Cu, Ag, or Au by the dashed lines; any two adjacent of R1, R2, R, R′, RA, or RB can be joined or fused to form a ring, with the proviso that when ring B is a 6-membered ring, two RB substituents are not joined to form a fused 6-membered aromatic ring. Organic light emitting devices, consumer products, formulations, and chemical structures containing the compounds are also disclosed.

The present application relates to an electronic device comprising a first electrode, a second electrode facing the first electrode, an interlayer between the first electrode and the second electrode comprising a hole transport region comprising at least two hole- transporting layers. The present application also relates to an OLED material.

A deuterated composition, a preparation method therefor, a light-emitting layer, and an organic light-emitting device, relating to the field of organic light-emitting materials. The deuterated composition comprises different deuterated compounds of a compound represented by formula I, wherein in formula I, Ar1 is selected from phenyl or naphthyl. For the different deuterated compounds of the same compound, the average deuteration rate of deuterium-exchangeable hydrogen atoms on Ar1 and anthryl is greater than 98%, and the average deuteration rate of deuterium-exchangeable hydrogen atoms on phenanthryl is 96%-98%. When the deuterated composition is used as a light-emitting material of organic light-emitting devices, the service lifetime of the devices is significantly prolonged.

The present invention relates to the technical field of the preparation of organic photoelectric materials, and particularly relates to an OLED with a deuterated boron-nitrogen compound, and an organic electroluminescent device. In the organic electroluminescent device of the present invention, the deuterated boron-nitrogen compound is used, and the light-emitting characteristic of the compound can be improved by means of the combination of deuterated phenyl of a defined site in a parent nucleus and a defined group. The boron-nitrogen compound provided in the present invention is used as a light-emitting layer material, such that the organic electroluminescent device can effectively have a lower driving voltage and maintain the stability of the voltage, and the light-emitting efficiency is improved.

The present specification relates to an organic light-emitting device comprising a first electrode, a second electrode provided so as to face the first electrode, and one or more organic material layers provided between the first electrode and the second electrode, the organic material layers including a light-emitting layer, the light-emitting layer includes a first host compound represented by Chemical Formula 1 or 2, a second host compound represented by Chemical Formula 3, a first dopant (phosphorescent) compound represented by Chemical Formula 4 or 5, and a second dopant (fluorescent) compound represented by Chemical Formula 6.

The present disclosure relates to an organic light emitting diode including a first electrode; a second electrode facing the first electrode; a first emitting part positioned between the first and second electrodes and including a first emitting material layer, a hole injection layer between the first electrode and the first emitting material layer and a first hole transporting layer between the hole injection layer and the first emitting material layer, wherein the hole injection layer includes a hole injection material, and the first hole transporting layer includes at least one of a first hole transporting material and a second hole transporting material, and wherein the first hole transporting material and the second hole transporting material are fluorene derivatives having different structures.

The present disclosure relates to an OLED that includes a first electrode; a second electrode facing the first electrode; a first emitting material layer including a first host being an anthracene derivative and a first dopant being a pyrene derivative and positioned between the first and second electrodes; and a first electron blocking layer including an electron blocking material of a heteroaryl-substituted amine derivative and positioned between the first electrode and the first emitting material layer, wherein at least one of hydrogen atoms in the anthracene derivative and the pyrene derivative is deuterated.

The present disclosure relates to a tandem-type organic light-emitting device comprising a plurality of light-emitting layers and, more particularly, to a tandem-type organic light-emitting device that exhibits low driving voltage, high efficiency, and long lifetime through a combination of an N-type charge generation layer and adjacent layers thereof.

The invention relates to the technical field of preparation of organic photoelectric materials, in particular to an arylamine compound, an organic electroluminescent device and a display or lighting device. According to the arylamine compound, amido serves as a mother nucleus, a limited and substituted fluorenyl structure serves as a core fragment, a benzo five-membered ring and a limited and substituted benzene ring serve as amido, and the other two side chains are combined, so that the compound can keep high stability. Meanwhile, when the compound is used for manufacturing OLED elements, the light-emitting efficiency of organic light-emitting devices is effectively improved, the working life of the organic light-emitting devices is effectively prolonged, and good application prospects are achieved.

The present disclosure relates to an organometallic compound in Formula below and an organic light emitting diode and an organic light emitting device including the organometallic compound. The organometallic compound provides high emitting efficiency and longer lifespan, and the organic light emitting diode and the organic light emitting device have advantages in the emitting efficiency and the lifespan.

The invention relates to organic electroluminescent materials and devices. An organometallic compound is provided comprising a platinum or palladium atom as a central metal atom coordinated by a tetradentate ligand. Formulations comprising these organometallic compounds are also provided. Further provided are organic light emitting devices (OLED) and related consumer products utilizing these organometallic compounds.

The present invention relates to novel materials and electronic devices, in particular organic electronic devices such as OLEDs (organic light emitting diodes) containing these materials, for example as electron transport materials, hole blocking materials or matrix materials. The invention also relates to mixtures that contain these novel materials.

Provided are a heterocyclic compound, an organic light-emitting device including the heterocyclic compound, and an electronic device including the organic light-emitting device, the heterocyclic compound being represented by Formula 1 and Formula 2, wherein, in Formula 1 and Formula 2, each group and parameter can be understood by referring to the detailed description.

Disclosed are an organometallic compound, an organic light emitting device including the same, and an electronic device including the organic light emitting device. The organometallic compound is represented by Formula 1, in which M is a transition metal; L1 is a ligand represented by Formula 2 as disclosed herein; L2 is a monodentate ligand, a bidentate ligand, a tridentate ligand, or a tetradentate ligand; n1 is 1, 2, or 3, wherein, when n1 is 2 or more, two or more ligands L1 are the same as or different from each other; n2 is 0, 1, 2, 3, or 4, wherein, when n2 is 2 or more, two or more ligands L2 are the same as or different from each other; and L1 and L2 are different from each other. Formula 1 M(L1) n1 (L2) n2 .

Provided are an organometallic compound represented by Formula 1 and an organic light emitting device including the same. The substituents of Formula 1 are the same as described in the specification. Formula 1

The present disclosure is characterized by being represented by general formula G1. In general formula G1, ring C is an aromatic hydrocarbon ring or a heteroaromatic ring. A11-A15 and A21-A25 are each independently selected from the group consisting of CRA and a nitrogen atom. RA represents a hydrogen atom or a substituent of various types. When RA exists in a quantity of more than one, the plurality of RAs may be the same or different from each other. X1 and X2 are each independently selected from the group consisting of an oxygen atom, a sulfur atom, a tellurium atom, a selenium atom, and NRB. RB represents a hydrogen atom or a substituent of various types. When RB exists in a quantity of more than one, the plurality of RBs may be the same or different from each other. RAs adjacent to each other or RA and RB adjacent to each other are optionally bonded to form a ring.

The present invention relates to a compound, to an organic light emitting device, and to a display device comprising the same.

The present disclosure relates to an organic light emitting diode and an organic light emitting device having the same, and more specifically, a light emitting layer of the organic light emitting diode includes a first light emitting material layer, a second light emitting material layer, a third light emitting material layer, and a fourth light emitting material layer. Introduction of anthracene-based hosts having different deuterium substitution rates in respective organic light-emitting material layers enables organic light-emitting diodes and organic light-emitting devices to improve their luminous efficiency and emission lifetime.

The present invention relates to OLED materials and in particular to silicon and germanium compounds having specific aliphatic substituents for use in electronic devices, and to electronic devices, in particular organic light-emitting devices, containing these materials.

The application relates to the technical field of organic photoelectric material preparation, in particular to an organic electroluminescent device and an illumination or display device containing the same. In the organic electroluminescent device, a compound containing a benzopentaheterocyclic ring fused phenanthryl group as a key group is used for the covering layer, and the hole blocking layer of the limited material can improve the light emission and light extraction efficiency of the device, improve the dependence on the angle, effectively improve the light emission efficiency of the organic electroluminescent device, and has a good application prospect.