A light-emitting device includes: a first electrode; a second electrode facing the first electrode; and an interlayer between the first electrode and the second electrode, wherein the interlayer includes an emission layer and an electron transport region, the electron transport region is between the emission layer and the second electrode, the electron transport region includes a first compound of Formula 1, an alkali metal halide, and a lanthanide metal, and the first compound includes one or more C.sub.8-C.sub.60 carbocyclic groups or a C.sub.8-C.sub.60 heterocyclic group, wherein, in Formula 1, the variables are defined herein.

A composition comprising a compound represented by the following formula (1) and a compound represented by the following formula (2), provided that the compound represented by the formula (1) and the compound represented by the formula (2) are different compounds:

##STR00001##

Specific polycyclic compounds, a material for an organic electroluminescence device comprising said specific polycyclic compound, an organic electroluminescence device comprising said specific polycyclic compound, an electronic equipment comprising said organic electroluminescence device, a process for preparing said polycyclic compounds, and the use of said polycyclic compounds in an organic electroluminescence. (Formula I) (I)

##STR00001##

Provided are an organic light-emitting display panel and a display device. The organic light-emitting display includes an array substrate and organic light-emitting components each having an anode, a cathode and an organic functional layer. The organic functional layer includes an organic light-emitting layer, a first electron transmission layer, and a hole injection layer. LUMO1 and LUMO4 satisfy: |LUMO1−LUMO4|<1.7 eV. HOMO5 and HOMO4 satisfy: |HOMO5−HOMO4|<1 eV. A work function φ1 of the first dopant and a work function φ4 of the cathode satisfy: φ1<φ4, and a work function φ2 of the second dopant and a work function φ3 of the anode satisfy: φ2>φ3.

Provided are an organic light-emitting display panel and a display device. The organic light-emitting display includes an array substrate and organic light-emitting components each having an anode, a cathode and an organic functional layer. The organic functional layer includes an organic light-emitting layer, a first electron transmission layer, and a hole injection layer. LUMO1 and LUMO4 satisfy: |LUMO1−LUMO4|<1.7 eV. HOMO5 and HOMO4 satisfy: |HOMO5−HOMO4|<1 eV. A work function φ1 of the first dopant and a work function φ4 of the cathode satisfy: φ1<φ4, and a work function φ2 of the second dopant and a work function φ3 of the anode satisfy: φ2>φ3.

The present invention provides an organic thin film light-emitting element having improved light-emitting efficiency and durable service life. The compound of the present invention has the structure represented by general formula (1) below. In general formula (1), Ar.sup.1 is an aromatic group having a specific structure, and Ar.sup.2 is a separate aromatic group having a specific structure. n is an integer of 1 or 2, and p is an integer of 1 or 2. However, n+p=3. When n is 2, each Ar.sup.1 may be the same or different, and when p is 2, each Ar.sup.2 may be the same or different. However, Ar.sup.1 and Ar.sup.2 are not the same group. ##STR00001##

The present invention relates to spiro compounds containing electron-conducting groups and to electronic devices, in particular organic electroluminescent devices, comprising these compounds.

The present invention relates to an organic electronic device comprising an anode layer, a cathode layer and a hole injection layer, wherein the hole injection layer is arranged between the anode layer and the cathode layer and wherein the hole injection layer comprises a hole transport compound and a metal complex.

The present invention relates to an organic electronic device comprising an anode layer, a cathode layer and a hole injection layer, wherein the hole injection layer is arranged between the anode layer and the cathode layer and wherein the hole injection layer comprises a hole transport compound and a metal complex.

Provided is a compound of Chemical Formula 1:

##STR00001##

wherein n is 0 or 1, when n is 0, at least one of R1 to R10 is a group of Chemical Formula A, and when n is 1, at least one of R1 to R12 is a group of Chemical Formula A:

##STR00002##

wherein L1 is a direct bond, or a substituted or unsubstituted arylene or heteroarylene group; l1 is an integer of 1 to 5; m is an integer of 1 to 3; when l1 is 2 or greater, the two or more L1s are the same as or different from each other, and an organic light emitting device including the same.