Abstract: A compound of formula (I) or (III) (Formulae (I), (III)) wherein: one Y is a substituent R1 bound directly to the fluorene unit of formula (I) by an sp3-hybridised carbon atom; the other Y is an aryl or heteroaryl group Ar1 that may be unsubstituted or substituted with one or more substituents; Ar2 is an arylene or heteroarylene group; R2 is a substituent; b is 0, 1, 2, 3 or 4; c is 0, 1, 2 or 3; and X is a group of formula (II): (Formula (II)) wherein Z is O or S; R3 independently in each occurrence is a substituent; each x is independently 0, 1, 2 or 3; and * is a bond to the fluorene unit of formula (I). The compounds may be used as host materials for phosphorescent dopants in organic light-emitting devices.

Abstract: The present specification relates to a coating composition comprising a compound, and an organic light emitting device comprising the same.

Abstract: An organic electroluminescent device includes, in order, a first electrode, a light-emitting layer, a resistive layer, and a second electrode. The resistive layer has a specific resistance within a range of 1×104 ?·cm or greater and 5×106 ?·m or less and includes a mixed material including two or more of zinc oxide, gallium oxide, and silicon dioxide and having a composition ratio within a predetermined range.

Abstract: Ligands with fused spirocyclic substitutions and metal complexes formed with such ligands and having improved performance in OLED applications are disclosed.

Abstract: Disclosed are an organic light emitting diode, an organic light emitting diode display device and a display device for vehicles using the same. The organic light emitting diode may achieve process simplification and reduction in material costs while maintaining high luminance, through structure change.

Abstract: Provided are an organic electroluminescence device and a display device including the same. The organic electroluminescence device includes a polycyclic compound represented by Formula 1 in a hole blocking layer and at least one of a first light emitting layer and an electron transport layer, wherein each of Y1 to Y5 and Y11 to Y15 is independently CH or N, at least four of Y1 to Y5 are CH, at least four of Y11 to Y15 are CH, and R1, R2, and R3 are as disclosed in the description.

Abstract: A display device includes: a substrate; an organic light-emitting diode positioned above the substrate; and a thin film encapsulation layer disposed on the organic light-emitting diode. The thin film encapsulation layer includes: at least one inorganic layer; and at least one organic layer disposed on the at least one inorganic layer. The at least one organic layer has a refractive index of about 1.66 or greater.

Abstract: The present invention relates to an electronic device comprising between a first electrode and a second electrode at least one first hole transport layer, wherein the first hole transport layer comprises (i) at least one first hole transport matrix compound consisting of covalently bound atoms and (ii) at least one electrical p-dopant selected from metal salts and from electrically neutral metal complexes comprising a metal cation and a at least one anion and/or at least one anionic ligand consisting of at least 4 covalently bound atoms, wherein the metal cation of the electrical p-dopant is selected from alkali metals; alkaline earth metals, Pb, Mn, Fe, Co, Ni, Zn, Cd; rare earth metals in oxidation state (II) or (III); Al, Ga, In; and from Sn, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo and W in oxidation state (IV) or less; provided that a) p-dopants comprising anion or anionic ligand having generic formula (Ia) or (Ib).

Abstract: A compound of Formula (I) D-S1-A-S2—B1,??Formula (I) wherein: A represents a conjugated chain of from 1 to 20 aromatic moieties independently selected from the group consisting of aromatic moieties, heteroaromatic moieties and E moieties, provided that A includes at least one E moiety, wherein E is selected from the group consisting of: E1 being a dibenzo[d,b]silole moiety of the structure: E2 being a moiety of the structure: and E3 being a moiety of the structure: wherein E is connected in the conjugated chain of A and optionally to S1 or to S2 through covalent bonds at Y and Z; wherein each R is independently selected from the group consisting of straight chain or branched C1-C20 alkyl and C2-C20 alkenyl, optionally wherein from 1 to 5 CH2 groups are each replaced by an oxygen, provided that no acetal, ketal, peroxide or vinyl ether is present in the R group, and optionally wherein each H bonded to a C in each R group may independently be replaced by a halogen; wherein the

Abstract: An organic light-emitting device includes: a first electrode; a second electrode; and an organic layer between the first electrode and the second electrode, wherein the organic layer comprises an emission layer, a mixed layer, and a hole transport region, the hole transport region is between the emission layer and the first electrode, the mixed layer is between the hole transport region and the emission layer, and comprises a first compound and a second compound, the first compound comprises an anthracene-based compound represented by Formula 1, and the second compound comprises an amine-based compound represented by Formula 2. A display apparatus includes the organic light-emitting device.

Abstract: An organic electroluminescence device includes a first electrode, a hole transport region, an emission layer including a nitrogen-containing compound, an electron transport region, and a second electrode. The nitrogen-containing compound may include a heterocyclic moiety and two carbazole moieties, the heterocyclic moiety may be a substituted pyridine, a substituted pyrimidine, or a substituted 1,3,5-triazine, each of two carbons among carbons of 2-, 4-, and 6-positions of the substituted pyridine, the substituted pyrimidine, or the substituted 1,3,5-triazine may be substituted with a phenylene group, a carbon in an ortho position of each phenylene group may be linked with a nitrogen at a 9-position of one of the carbazole moieties, and the remaining carbon among the carbons of the 2-, 4-, and 6-positions may be substituted with a substituted or unsubstituted aromatic group, and the carbazole moieties may be linked together by a linker.

Abstract: The present specification relates to a compound and an organic electronic device comprising the same.

Abstract: Disclosed is an organic electroluminescence device including an anode, a cathode, at least two light-emission sub-stacks and a charge generation layer. The charge generation layer is located between the light-emission sub-stacks, and the charge generation layer includes a stack of a n-type charge generation layer and a p-type charge generation layer. The n-type charge generation layer includes a Compound of Formula 1 and a Compound of Formula 2. The present organic electroluminescence device improves injection and transport properties of electrons to lower driving voltage of the device, improves efficiency and lifespan of the device, and has excellent thermal/electrical stability for long driving duration of the device.

Abstract: A luminescent film includes a host compound, a blue phosphorescent compound, and a blue fluorescent compound, in which an emission spectrum of the blue phosphorescent compound and an absorption spectrum of the blue fluorescent compound have portions overlapping with each other; shortest wavelength-side maximum emission wavelengths of the blue phosphorescent compound (abbreviated as “BPM” in the expression) and the blue fluorescent compound (abbreviated as “BFM” in the expression) satisfy the following expression (1): ?BFM??BPM: expression (1) in which ?BFM represents the shortest wavelength-side maximum emission wavelength of the blue fluorescent compound and ?BPM represents the shortest wavelength-side maximum emission wavelength of the blue phosphorescent compound; and light emission derived from the blue fluorescent compound is detected.

Abstract: It is an object of the present invention to provide a light emitting element, which is resistant to repetition of an oxidation reaction. It is another object of the invention to provide a light emitting element, which is resistant to repetition of a reduction reaction. An anthracene derivative is represented by a general formula (1). In the general formula (1), R1 represents hydrogen or an alkyl group having 1 to 4 carbon atoms, R2 represents any one of hydrogen, an alkyl group having 1 to 4 carbon atoms and an aryl group having 6 to 12 carbon atoms, R3 represents any one of hydrogen, an alkyl group having 1 to 4 carbon atoms, and an aryl group having 6 to 12 carbon atoms, Ph1 represents a phenyl group, and X1 represents an arylene group having 6 to 15 carbon atoms.

Abstract: The present disclosure relates to the field of display technologies, and provides an organic electroluminescent device. The organic electroluminescent device comprises a hole injection layer. The hole injection layer includes at least one hole injection material and at least one free radical molecular material doped in the hole injection material.

Abstract: Provided are a heterocyclic compound and an organic light-emitting device including the same.

Abstract: An organic light-emitting device including a first electrode, a second electrode facing the first electrode, and an emission layer disposed between the first electrode and the second electrode, wherein the emission layer comprises a host and a dopant, wherein the emission layer emits a phosphorescent light, wherein the dopant is an organometallic compound, and wherein the emission layer satisfies certain parameters described in the specification.

Abstract: A thermally activated delayed fluorescence (TADF) material including a compound represented by formula (I). The TADF material can be applied to an organic light-emitting layer, thereby realizing a series of high-performance TADF electronic devices.

Abstract: Provided is a novel compound or a light-emitting element with high emission efficiency. The provided novel compound includes a bicarbazole skeleton and a benzofuropyrimidine skeleton or a benzothienopyrimidine skeleton. The provided light-emitting element includes the compound.