A light emitting device having an anode, a cathode, a first organic layer and a second organic layer disposed between the anode and the cathode is provided. The first organic layer is a layer containing a compound represented by the formula (T) and a fluorescent compound represented by the formula (B) and the second organic layer is a layer containing a crosslinked body of a crosslink material, wherein the variable groups are as defined in the specification.

##STR00001##

Provided is a fluorine atom-containing compound represented by formula (1) below ##STR00001##
(In the formula, Z represents a predetermined divalent group, each Ar independently represents a predetermined aromatic ring-containing group, and each Ar.sup.F independently represents a predetermined fluorine atom-containing aryl group).

Provided is a novel compound for EBL capable of improving the light emitting efficiency, stability and life span of a device, and an organic electric element and an electronic device using the same.

The present specification provides a compound of Chemical formula 1 and an organic light-emitting device comprising the same.

A display apparatus that has a light detection function and has a light detection function with high accuracy is provided. The display apparatus includes a light-receiving device and a first light-emitting device. The light-receiving device includes a first electrode, a light-receiving layer, and a common electrode that are stacked in this order. The first light-emitting device includes a second electrode, a first EL layer, and the common electrode that are stacked in this order. The light-receiving layer includes a first layer, a second layer, and an active layer between the first layer and the second layer. The first layer contains a first substance having a hole-transport property, and the second layer contains a second substance having an electron-transport property. An end portion of the active layer, an end portion of the first layer, and an end portion of the second layer are aligned or substantially aligned with one another. The first EL layer includes a third layer, a fourth layer, and a first light-emitting layer between the third layer and the fourth layer. The third layer contains a third substance having a hole-transport property, and the fourth layer contains a fourth substance having an electron-transport property.

An organic light-emitting device including: a first electrode; a second electrode facing the first electrode; and an organic layer disposed between the first electrode and the second electrode, the organic layer including a light-emissive layer that includes a dopant material including an organometallic compound represented by Chemical Formula 1; and a host material including a compound represented by Chemical Formula 2 and a compound represented by Chemical Formula 3.

The present application discloses an arylamine organic compound and the use thereof. The arylamine organic compound has a structure as shown in general formula (1).

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The arylamine organic compound has a relatively high glass transition temperature, a relatively high thermal stability, a relatively small visible light extinction coefficient, and a relatively high refractive index; and when the arylamine organic compound is used as a capping layer material for an organic electronic device, the visible luminous efficiency of the organic electronic device can be effectively improved.

A display apparatus with a wide viewing angle is provided. The display apparatus includes a first light-emitting element and a second light-emitting element over a substrate. The first light-emitting element includes a first pixel electrode, a first organic layer, and a common electrode, and the second light-emitting element includes a second pixel electrode, a second organic layer, and the common electrode. In a top view of the substrate, the first light-emitting element includes a first side and a second side that is shorter than the first side. An absolute value of a difference between a chromaticity difference between a chromaticity in a front direction and a chromaticity in a first direction and a chromaticity difference between the chromaticity in the front direction and a chromaticity in a second direction is less than or equal to 0.05. A projection of the first direction onto the substrate is parallel to the first side, and a projection of the second direction onto the substrate is parallel to the second side. An angle formed by the first direction and a normal direction of a surface of the substrate is 70?, and an angle formed by the second direction and the normal direction of the surface of the substrate is 70?.

A novel organometallic complex and a novel light-emitting device that are highly useful or reliable are provided. The organometallic complex represented by General Formula (G1) is provided. Note that R.sup.1, R.sup.2, and R.sup.4 to R.sup.22 each independently represent hydrogen (including deuterium), an alkyl group having 1 to 10 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 18 carbon atoms, at least one of R.sup.2 and R.sup.4 represents an alkyl group having 1 to 10 carbon atoms, and any one or more of R.sup.18 to R.sup.22 represent an alkyl group having 3 to 10 carbon atoms or a substituted or unsubstituted aryl group having 6 to 18 carbon atoms.

##STR00001##

The present invention relates to an organic electronic device, comprising a first electrode, a second electrode, and a substantially organic layer comprising a compound according to formula (I) between the first and the second electrode: ##STR00001##
wherein M is a metal ion, each of A.sup.1-A.sup.4 is independently selected from H, substituted or unsubstituted C6-C20 aryl and substituted or unsubstituted C2-C20 heteroaryl and n is valency of the metal ion.