An organic light emitting display device is discussed, which includes an anode on a substrate, a first hole transfer layer on the anode, a first emission layer on the first hole transfer layer, a first electron transfer layer on the first emission layer, an N-type charge generation layer on the first electron transfer layer, a second hole transfer layer on the N-type charge generation layer, a first emission control layer on the second hole transfer layer, an absolute value of a highest occupied molecular orbital (HOMO) energy level of the first emission control layer being greater than an absolute value of a HOMO energy level of the second hole transfer layer, a second emission layer on the first emission control layer, a second electron transfer layer on the second emission layer and a cathode on the second electron transfer layer.

A compound having the formula Ir(L.sub.A).sub.n(L.sub.B).sub.3−n, having the structure ##STR00001##
Formula I, is disclosed. In Formula I, each of Z.sup.1, Z.sup.2, Z.sup.3, and Z.sup.4 is CR.sup.2; X is O, S, or Se; n is an integer from 1 to 3; R.sup.1, R.sup.2, R.sup.3, R.sup.4, and R.sup.5 each independently represent mono- to a maximum possible number of substitutions, or no substitution; R.sup.1, R.sup.2, R.sup.3, R.sup.4, and R.sup.5 are each independently selected from a variety of substituents; any two substitutions in R.sup.1, R.sup.2, R.sup.3, R.sup.4, and R.sup.5 are optionally joined to form a ring; at least one pair of substitutions in R.sup.1, R.sup.2, R.sup.3, R.sup.4, and R.sup.5 are joined together to form a bridge structure comprising a backbone structure that forms a fused first ring, which can be further substituted; and the backbone structure is saturated. Organic light emitting devices and consumer products containing the compounds are also disclosed.

A light-emitting device includes: a first electrode; a second electrode facing the first electrode; light-emitting units in the number of n between the first electrode and the second electrode; and a charge-generation unit(s) in the number of n−1 between the adjacent light-emitting units. The light-emitting units each include an emission layer, and at least one of the charge-generation unit(s) includes an n-type charge-generation layer, a p-type charge-generation layer, and an interlayer between the n-type charge-generation layer and the p-type charge-generation layer. The p-type charge-generation layer includes a first material and a second material, the first material includes a hole-transporting organic compound, an inorganic insulation compound, or any combination thereof, the second material includes at least one inorganic semiconductor compound, the interlayer comprises a third material, and the third material is selected from an organic compound, an inorganic semiconductor compound, and an inorganic insulation compound.

Provided are an organometallic compound represented by Formula 1 and an organic light-emitting device including the same. The organic light-emitting device includes a first electrode; a second electrode facing the first electrode; an organic layer between the first electrode and the second electrode and including an emission layer; and at least one organometallic compound represented by Formula 1.

Provided are organometallic compounds including a ligand L.sub.A of Formula I ##STR00001##

An iridium complex which has a phenylpyridine bidentate ligand containing a group represented by the following general formula (A):

##STR00001##

(In the general formula (A), X represents a cyano group or a halogenated alkyl group. L represents a single bond or a divalent linking group. R represents a substituent. n represents an integer of 0 to 4. * represents a binding site to a phenylpyridine bidentate ligand.)

An organic electroluminescence device inducting a cathode, an anode, and an emitting layer disposed between the cathode and the anode, wherein the emitting layer includes a compound represented by the following formula (1) and one or more compounds selected from the group consisting of compounds represented by each of formulas (11), (21), (31), (41), (51), (61), (71) and (81). In the formula (1), at least one of R.sub.1 to R.sub.8 is a deuterium atom,

##STR00001##

The present invention relates to an organic electronic device comprising a substrate (110), an anode layer (120), a cathode layer (190), at least one first emission layer (150), and a hole injection layer (130), wherein • - the hole injection layer comprises a metal complex, wherein • - the metal complex comprises at least one electropositive metal atom having an electro-negativity value according to Allen of less than 2.4, and • - the metal complex comprises at least one anionic ligand comprising at least 4 covalently bound atoms; • - the anode layer comprises a first anode sub-layer (121) and a second anode sub-layer (122), wherein • - the first anode sub-layer comprises a first metal having a work function in the range of > 4 and < 6 eV, and • - the second anode sub-layer comprises a transparent conductive oxide; wherein • - the hole injection layer is arranged between the first emission layer and the anode layer, • - the first anode sub-layer is arranged closer to the substrate, and the second anode sub-layer is arranged closer to the hole injection layer.

The present invention relates to an organic electronic device comprising a substrate (110), an anode layer (120), a cathode layer (190), at least one first emission layer (150), and a hole injection layer (130), wherein • - the hole injection layer comprises a metal complex, wherein • - the metal complex comprises at least one electropositive metal atom having an electro-negativity value according to Allen of less than 2.4, and • - the metal complex comprises at least one anionic ligand comprising at least 4 covalently bound atoms; • - the anode layer comprises a first anode sub-layer (121) and a second anode sub-layer (122), wherein • - the first anode sub-layer comprises a first metal having a work function in the range of > 4 and < 6 eV, and • - the second anode sub-layer comprises a transparent conductive oxide; wherein • - the hole injection layer is arranged between the first emission layer and the anode layer, • - the first anode sub-layer is arranged closer to the substrate, and the second anode sub-layer is arranged closer to the hole injection layer.

An organic light-emitting diode and a preparation method therefore, a display panel and a display device. The organic light-emitting diode comprises an anode (300); a light-emitting layer (200); and a cathode (100), wherein the light-emitting layer (200) is internally provided with a doping material and at least two types of host materials, and a horizontal alignment factor of the light-emitting layer (200) is not less than 65%.