722 results about "Organic light emitting device" patented technology

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.

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.

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.

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.

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 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 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 .

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.

The present specification relates to an organic light emitting device including an anode, a first organic material layer including a compound of Chemical Formula 1, a second organic material layer including a compound of Chemical Formula 2, a light emitting layer and a cathode:wherein all the variables are described herein.

A heterocyclic compound represented by Formula 1, an organic light-emitting device including the heterocyclic compound, and an electronic apparatus:wherein, in Formula 1,Cz1 is a group represented by Formula 2,k1 to k3 are each independently 0, 1, 2, 3, 4, or 5, and a sum of k1 to k3 is 1 or greater,and wherein the descriptions of the remaining substituents in Formula 1 and Formula 2 are as provided herein.

Disclosed are an organic light emitting device including a first heterocyclic compound to a third heterocyclic compound, a composition for an organic material layer of an organic light emitting device, and a method for manufacturing an organic light emitting device. The organic light emitting device and the composition for an organic material layer thereof according to an exemplary embodiment of the present application can not only lower the driving voltage of the device and improve the light efficiency, but also improve the thermal stability of the compound, thereby improving the service life characteristics of the device.

An organic electroluminescent device (OLED, organic light emitting device) comprising: an anode; a cathode, arranged opposite to the anode; and at least one light emitting layer arranged between the anode and the cathode; wherein the at least one light emitting layer comprises beside at least one emitter EM1 having a surface charge density SCDEM1, a host system comprising at least two host materials, wherein the first host material is a hole-transporting host material h-TMM having a surface charge-density SCDH1 and the second host material is an electron-transporting host material e-TMM having a surface charge-density SCDH2; characterized in that the surface charge-density of the host system SCDhost is > 0.5 mC / m2.

Provided is a liquid composition that can form a constituent layer with excellent film thickness uniformity and that can produce an organic light-emitting device with excellent luminous efficiency without adversely affecting its lifespan. [Solution] A liquid composition used for forming constituent layers of an organic light-emitting device having a laminated structure in which constituent layers including a hole injection layer, a hole transport layer, and a light-emitting layer are stacked. The liquid composition contains a compound having a number-average molecular weight of 1,050 or less and a repeating structural unit represented by formula (1), and an organic solvent. TIFF2026043501000017.tif27170

To provide an organic electroluminescent element having excellent properties.SOLUTION: The organic electroluminescent element is provided by using a compound of the general formula in the figure, where R1 and R3 each represent a hydrogen atom, a deuterium atom, or an alkyl group; R2 represents a hydrogen atom or a deuterium atom; Z1 represents a carbazolyl group, a benzofurocarbazolyl group, or a benzothienocarbazolyl group; and Z2 represents a dibenzofuryl group, a benzofurocarbazolyl group, or a benzothienocarbazolyl group.SELECTED DRAWING: None

Provided are an organometallic compound represented by Formula 1: wherein M1 is a transition metal, Ln1 is a ligand represented by Formula 1A and Ln2 is a ligand represented by Formula 1B, and other groups and various variables are as described in the detailed description, an organic light-emitting device including the organometallic compound, and an electronic device including the organic light-emitting device. Formula 1M1 (Ln1) n1 (Ln2) n2

The present invention relates to an organic light emitting diode and an organic light emitting device each comprising in a light emitting material layer a first compound represented by the following formula, a second compound as a p-type host and a third compound as an n-type host. Thus, the organic light emitting diode and the organic light emitting device have advantages in driving voltage, luminous efficiency and lifetime.

The present specification relates to a heterocyclic compound represented by Chemical Formula 1, and an organic light emitting device including the same.

Provided are organometallic compounds comprising as a central metal atom either a platinum or a palladium atom which is coordinated by a tetradentate ligand. Also provided are formulations comprising these organometallic compounds. Further provided are organic light emitting devices (OLEDs) as well as related consumer products that utilize these organometallic compounds.

The present invention relates to a polycyclic aromatic derivative compound and an organic light-emitting device using the same. The polycyclic aromatic derivative compound according to the present invention is used for an organic layer in a device, and thus can realize a highly efficient organic light-emitting device, and thus can be industrially and effectively used for various display devices such as flexible displays and lighting apparatuses, such as monochromatic flat panel lighting or white flat panel lighting and monochromatic flexible lighting or white flexible lighting.

The present specification relates to a heterocyclic compound and an organic light-emitting device comprising same.

Provided are a polycyclic compound represented by Formula 1 and an organic light-emitting device and an electronic apparatus, each including the same.