Abstract:
An organic light-emitting device and a flat panel display device, the organic light-emitting device including an anode; cathode; and organic layer therebetween, the organic layer including a hole transport region between the anode and the emission layer and that includes at least one of a hole injection layer, a hole transport layer, a buffer layer, and an electron blocking layer, an electron transport region between the emission layer and the cathode, the electron transport region including at least one of a hole blocking layer, an electron transport layer, and an electron injection layer, and a mixed organic layer disposed between the emission layer and the electron transport region, wherein the mixed organic layer includes a hole transport compound and an electron transport compound, and an electron affinity (EA1) of the hole transport compound and an electron affinity (EA2) of the electron transport compound satisfy the following relationship: EA1
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, wherein the organic layer includes at least one first material and at least one second material, the first material being represented by one of Formulae 1-1 and 1-2, below, and the second material being represented by Formula 2, below: (A21)n21-(A22)n22-(A23)n23-(A24)n24.
Abstract:
An OLED and a flat panel display, the OLED including an anode; a cathode; and an organic, the organic layer including an EML, the EML including first and second hosts, a hole transport region between the anode and the EML and 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 an electron affinity of a compound of the intermediate layer [EAintermediate layer] and an electron affinity of the first host [EAhost1] satisfy a relationship represented by the following expression: EAintermediate layer≧EAhost1+0.3 eV.
Abstract:
An organic light-emitting device and a flat panel display device, the organic-light emitting device including an anode; a cathode; and an organic layer therebetween including an emission layer, a hole transport region between the anode and the emission layer, the hole transport region including at least one of a hole injection layer, a hole transport layer, and an electron blocking layer, an electron transport region between the emission layer and the cathode, the electron transport region including at least one of a hole blocking layer, an electron transport layers and an electron injection layer, and a buffer layer between the emission layer and the electron transport region, wherein the buffer layer includes a biscarbazole-based derivative and triphenylene-based derivative, and a triplet energy (ET1) of the biscarbazole-based derivative or the triphenylene-based derivative and a triplet energy (ET2) of a dopant of the emission layer satisfy the following relationship: ET1>ET2.
Abstract:
An organic light-emitting device includes a first electrode, a second electrode facing the first electrode, and an organic layer between the first electrode and the second the organic layer including an emission layer. The organic layer includes a first compound represented by Formula 1 and a second compound represented by Formula 2: where R1, to R3, R11 to R13, R21 to R24, X, L1 to L3, L11 to L13, a1 to a3, b1 to b3, c1 to c3, a11 to a13, b11 to b13, and c11 to c13 are as defined in the specification.
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, wherein the organic layer includes at least one first material and at least one second material, the first material being represented by one of Formulae 1-1 and 1-2, below, and the second material being represented by Formula 2, below:
Abstract:
A heterocyclic compound and an organic light-emitting device including the heterocyclic compound, the heterocyclic compound being represented by Formula 1 below:
Abstract:
An organic light-emitting device including a first electrode; a second electrode opposite to 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 first compound represented by the following Formula 1 and a second compound represented by the following Formula 2:
Abstract:
An organic light-emitting device including a first electrode; a second electrode; and an organic layer, the organic layer including an emission layer, a hole transport region including a hole transport layer, a hole injection layer, or a buffer layer, and an electron transport region including a hole blocking layer, an electron transport layer, or an electron injection layer, wherein a triplet energy of a hole transport material of the hole transport layer is from about 2.4 to about 3.2 eV, an electron affinity of the hole transport material is from about 2.2 to about 2.6 eV; the triplet energy of the hole transport material is greater than a triplet energy of a dopant of the emission layer and a triplet energy of a host material of the emission layer, the host material of the emission layer includes the compound represented by Formula 1.
Abstract:
A condensed cyclic compound is represented by Formula 1 below: wherein X3 is a carbon atom that is one of X7 and X8 in Formula A below, X4 is a carbon atom that is the other of X7 and X8 in Formula A, or ii) X5 is a carbon atom that is one of X7 and X8 in Formula A, X6 is a carbon atom that is the other of X7 and X8 in Formula A,