The present invention provides a compound, an organic electroluminescence material, an organic electroluminescence element and an electronic device. When the compound is used as the material of the organic functional layers, it makes the element have a lower driving voltage, a higher current efficiency and a longer service life.

An organic light emitting display device is provided. The organic light emitting display device includes at least two or more light emitting parts between an anode and a cathode and each having a light emitting layer. At least one of the at least two or more light emitting parts includes an organic layer. The organic layer is formed of a compound comprising a functional group that reacts with alkali metals or alkali earth metals and a functional group with electron transport properties.

The present invention discloses a thin-film light-emitting device including a charge generating junction layer and a method of fabricating the thin-film light-emitting device. The thin-film light-emitting device including a charge generating junction layer according to one embodiment of the present invention includes a negative electrode; at least one light-emitting unit formed on the negative electrode and including a charge generating junction layer, an electron injection/transport layer, a thin-film light-emitting layer, and a hole injection/transport layer in a sequential order; and a negative electrode formed on the light-emitting unit. In the thin-film light-emitting device of the present invention, the charge generating junction layer has a layer-by-layer structure in which a p-type semiconductor layer and an n-type semiconductor layer are formed, and the concentration of oxygen vacancies at the interface between the p-type and n-type semiconductor layers is adjusted by annealing the n-type semiconductor layer.

A compound represented by formula (I), a material for an organic electroluminescence device having the specific compound, an organic electroluminescence device of the specific compound, an electronic equipment having the organic electroluminescence device and the use of the compound of formula (I) in an organic electroluminescence device, where in formula (I), R.sup.1 and R.sup.1′ each independently represent a C.sub.1 to C.sub.6 alkyl group; R.sup.2 represents a substituted or unsubstituted C.sub.6 to C.sub.24 aryl group, a substituted or unsubstituted heteroaryl group having 3 to 9 carbon atoms, or CN; L represents a substituted or unsubstituted C.sub.6 to C.sub.40 arylene group; m is 0 to 5; and n is 1, 2 or 3:

##STR00001##

The present disclosure relates to an arylamine compound and an organic electroluminescent device. The arylamine compound has a structure represented by Formula (1), and contains N atoms rich in electrons and a number of large conjugated systems, so that the electron mobility and the transition rate can be improved. The device prepared from the arylamine compound has high electrical stability, and device efficiency and long device lifetime.

##STR00001##

A compound having the formula Ir(L.sub.A).sub.n(L.sub.B).sub.3-n, having the structure

##STR00001##

of Formula I is provided. In the structure of Formula I, each of A.sup.1 through A.sup.8 is independently carbon or nitrogen; at least one of A.sup.1 through A.sup.8 is nitrogen; ring B is bonded to ring A through a C—C bond; the iridium is bonded to ring A through an Ir—C bond; X is O, S, or Se; each of R.sup.1 through R.sup.5 are independently selected from a variety of substituents, whichmay be linked for form a ring; n is an integer from 1 to 3; and at least one R.sup.2 adjacent to ring C is not hydrogen. Formulations and devices, such as OLEDs, that include the first compound are also provided.

An electroluminescent device and a display device including the electroluminescent device. The electroluminescent device includes a first electrode and a second electrode each having a surface opposite the other; a light emitting layer disposed between the first electrode and the second electrode, the light emitting layer including quantum dots; and an electron transport layer disposed between the light emitting layer and the second electrode, the electron transport layer including inorganic material nanoparticles including an anion dopant including P, N, C, Cl, F, Br, S, or a combination thereof.

A device comprising an organic light-emitting diode comprising an organic layer sequence, a radiation exit area and an encapsulation, wherein the organic layer sequence comprises at least one radiation-emitting region which generates electromagnetic radiation in the spectral range from infrared radiation to UV radiation during operation, and wherein the encapsulation forms a seal of the organic layer sequence against environmental influences, at least one touch-sensitive operating element, wherein the at least one touch-sensitive operating element comprises at least one touch sensor, wherein the device is flexible.

A light-emitting device in which an interlayer includes a contact layer including an electron-transporting host and a hole-transporting host is provided. The contact layer is in direct contact with an emission layer, and the emission layer includes a first dopant and a second dopant.

A light-emitting device includes an electron transport layer, and the electron transport layer include a mixture of a first material, a second material, and a third material, wherein the first material includes an electron transport compound, the second material includes a metal-containing material, and the third material includes a low-refractive-index compound. An electronic apparatus including the light-emitting device is also provided.