Abstract: An organic light-emitting device including: a first electrode; a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode, the organic layer including an emission layer, wherein the organic layer includes a compound represented by Formula 1: When the compound of Formula 1 is used as an electron transport material, an organic light-emitting device including the compound may have high efficiency, low driving voltage, high brightness, and long lifespan.

Abstract: An organic light-emitting device including a first electrode; a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode, wherein the organic layer includes at least one first material represented by Formula 1 and at least one second material represented by Formula 2:

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. The organic layer including an emission layer. The emission layer includes a first host represented by Formula 1 and a second host represented by Formula 2. A volume ratio of the first host to the second host is in a range of about 94:3 to about 77:20: where R11 to R14, R21, R23 to R26, L11, L21, L23, X21, a11, a21, a23, b11 to b14, b21, and b23 to b26 are as defined in the specification.

Abstract: An organic light-emitting device includes a first electrode; a second electrode; and an organic layer between the first electrode and the first electrode and including an emission layer (EML); a hole transport region between including an electron blocking layer (EBL) and at least one selected from a hole injection layer (HIL), a hole transport layer (HTL), and a buffer layer; and an electron transport region and including a hole blocking layer (HBL) and at least one selected from an electron transport layer and electron injection layer (EIL). A triplet energy of a material for the electron blocking layer (EBL T1), a triplet energy of a material for the hole blocking layer (HBL T1), and a triplet energy of a host in the emission layer (Host T1) satisfy Equation (1) and Equation (2): EBL T1?HBL T1?Host T1??(1) EBL T1?HBL T1?0.2 eV??(2).

Abstract: A buckle includes a female part having a housing and an engaging portion provided at an inner surface of the housing, and a male part including a base and an inserted portion to be inserted into the housing of the female part. The inserted portion includes a base end coupled to the base, a free end opposite to the base end, and an engaged portion to be engaged with the engaging portion. When a force is applied to the male part for pulling the male part out of the housing, the engaged portion has a contact surface that is in contact with the engaging portion. Relative to a first center point at the center of the base end in the thickness direction of the inserted portion, a second center point at the center of the contact surface in said thickness direction is positioned downward.

Abstract: An organic light-emitting device including a first electrode; a second electrode; and an organic layer between the first electrode and the second electrode, the organic layer including an emission layer, wherein the emission layer includes a first host represented by Formula 1 and a second host represented by one of Formulae 2-1 to 2-3:

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, the organic layer including an emission layer, wherein the organic layer includes a first compound represented by Formula 1 and a second compound represented by Formula 2:

Abstract: A condensed cyclic compound and an organic light-emitting device, the compound being represented by Formula 1: (A1)a1-(L1)b1-(A2)a2??<Formula 1> wherein, in Formula 1, A1 is a group represented by Formula 2-1, below, a1 is 1, 2, or 3, and, when a1 is 2 or greater, two or more A1s are identical to or different from each other, A2 is a group represented by Formula 2-2, below, a2 is 1, 2, or 3, and, when a2 is 2 or greater, two or more A2s are identical to or different from each other,

Abstract: An OLED device including a first electrode; a second electrode; and an organic layer, the organic layer including an emission layer, a hole transport region between the first electrode and the emission layer, the hole transport region including at least one of a hole transport layer, a hole injection layer, and a buffer layer, and an electron transport region between the emission layer and the second electrode, the electron transport region including at least one of a hole blocking layer, an electron transport layer, and an electron injection layer, wherein the emission layer includes at least one host (H) and at least one phosphorescent dopant (D), an electron affinity (EA) and an ionization potential (IP) simultaneously satisfying the relationships represented by Equation (1) and Equation (2) below: EA(D)?EA(H)?0.2 eV??(1) IP(H)?IP(D)?0.2 eV??(2).

Abstract: An organic light-emitting device includes a first electrode; a second electrode; and an organic layer between the first electrode and the first electrode and including an emission layer (EML); a hole transport region between including an electron blocking layer (EBL) and at least one selected from a hole injection layer (HIL), a hole transport layer (HTL), and a buffer layer; and an electron transport region and including a hole blocking layer (HBL) and at least one selected from an electron transport layer and electron injection layer (EIL). A triplet energy of a material for the electron blocking layer (EBL T1), a triplet energy of a material for the hole blocking layer (HBL T1), and a triplet energy of a host in the emission layer (Host T1) satisfy Equation (1) and Equation (2): EBL T1>HBL T1?Host T1??(1) EBL T1?HBL T1?0.2 eV??(2).

Abstract: An organic light emitting device includes: a first electrode; a second electrode facing the first electrode; m emission units stacked between the first electrode and the second electrode; and m?1 charge generating layer(s) between the two adjacent emission units from among the m emission units, m?1 charge generating layer(s) including m?1 n-type charge generating layer(s) and m?1 p-type charge generating layer(s), wherein m is an integer of 2 or greater, a maximum emission wavelength of light emitted from at least one of the m emission units differs from that of light emitted from at least one of the other emission units, at least one of the m?1 n-type charge generating layer(s) includes a metal-containing material and an electron transporting metal-non-containing material.

Abstract: An organic light-emitting device includes a first electrode, a second electrode facing the first electrode, and an organic layer disposed between the first electrode and the second electrode and including an emission layer; an electron transport region disposed between the second electrode and the emission layer; a mixed layer disposed between the emission layer and the electron transport region and including a first material and a second material; wherein the first material and the second material are pyrrolidine-based compounds; and triplet energy EgT1 of at least one selected from the first material and the second material is 2.2 eV or greater.

Abstract: An organometallic complex represented by Formula 1 below and an organic light-emitting device including the same: Formula 1 is as defined in the specification.

Abstract: An organic light-emitting device and a flat panel display, the device including an anode; a cathode; and an organic layer therebetween, the organic layer including an EML, the EML including a first host and a second host that are different from one another, a hole transport region between the anode and the EML, the hole transport region including at least one of a hole injection layer (HIL), a hole transport layer (HTL), a buffer layer, or an electron blocking layer (EBL), an electron transport region between the EML and the cathode, the electron transport region including at least one of a hole blocking layer (HBL), an electron transport layer (ETL), or an electron injection layer (EIL), and an intermediate layer between the EML and the electron transport region; wherein the intermediate layer includes a compound having an electron affinity of more than 0 eV and less than 2.5 eV.

Abstract: An organic light-emitting device including a first compound represented by Formula 1 and a second compound represented by one of Formulae 2A and 2B.

Abstract: An organic light-emitting device including a first compound represented by Formula 1 and a second compound represented by one of Formulae 2A to 2C.

Abstract: A condensed cyclic compound represented by Formula 1 and an organic light-emitting device including the same.

Abstract: An organic light-emitting device is provided.

Abstract: A condensed cyclic compound represented by Formula 1-1 or Formula 1-2 and an organic light-emitting device including the same.

Abstract: A condensed cyclic compound represented by Formula 1-1 or Formula 1-2 and an organic light-emitting device including the same.