Abstract:
A compound having a high glass transition temperature, high electric stability, and/or high luminescent efficiency, and an organic light-emitting device including an emitting layer including the compound, which is represented by Formula 1: In Formula 1, A may be a moiety formed by fusing a substituted or unsubstituted indole group, as represented by Formula 1-1: When the compound represented by Formula 1 is used as a material for an emitting layer, an organic light emitting device including the compound may exhibit decreased driving voltage and improved efficiency and lifespan, as compared to OLEDs containing compounds that are available in the related art.
Abstract:
Provided are an amine-based compound and an organic light-emitting diode including the same. The amine-based compound is represented by Formula 1 or Formula 2 below:
Abstract:
An organic light-emitting device includes a first electrode, a second electrode, and an emission layer between the first electrode and the second electrode, in which the emission layer may include a fluorescent host and a fluorescent dopant. The device includes a charge balance layer (CBL) adjacent to the emission layer and between the emission layer and the second electrode. When the LUMO of the charge balance layer (ECL) is at least 0.2 eV higher than the LUMO of the electron transport layer (EEL), and the HOMO of the charge balance layer (ECH) is at least 0.2 eV lower than the HOMO of the fluorescent dopant (EdH), the rate of electron injection into the emission layer can be controlled, and direct electron injection into the host and dopant at the same or substantially the same time can be achieved, thereby improving the device efficiency.
Abstract:
A heterocyclic compound of Formula 1 below and an organic light-emitting device including the same are provided. X1 to X4, L1, L2, n, m, and Ar1 to, Ar4 in Formula 1 are defined as 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 second electrode. The organic layer includes an emission layer, and the emission layer includes at least one light-emitting material represented by one of Formulas 1 and 2. The organic layer further includes at least one hole-transporting material represented by one of Formulas 2(1) and 2(2).
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 electrode, 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. The first compound may be included in an emission layer, and the second compound may be included in an electron transport region.
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 electrode, the organic layer including an emission layer, wherein the organic layer includes a first compound, a second compound, a third compound, and a fourth compound, and the first compound to the fourth compound satisfy Equations 1 to 8: E1,LUMO≥E2,LUMO+0.15 electron volts (eV) Equation 1 E1,HOMO≥E2,HOMO+0.15 eV Equation 2 E1,T1≥E4,T1 Equation 3 E2,T1≥E4,T1 Equation 4 E3,T1≥E4,T1 Equation 5 E3,LUMO≥E2,LUMO+0.1 eV Equation 6 −5.6 eV≥E3,HOMO Equation 7 Egap1≥Egap3. Equation 8
Abstract:
An organic light-emitting device is provided. The device includes a first electrode, a second electrode, and an organic layer disposed between the first electrode and the second electrode and including an emission layer. The organic layer includes a first compound represented by Formula 1 and a second compound represented by Formula 2. Various possibilities for the constituents of chemical structures in Formulas 1 and 2 are presented.
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 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 501. The organic light-emitting device including the first compound and the second compound may have low driving voltage, high efficiency, and high luminance.
Abstract:
An organic light emitting diode display including a first substrate; a first electrode on the first substrate; an organic light emitting layer on the first electrode; a second electrode on the organic light emitting layer; and a capping layer on the second electrode, wherein the capping layer includes at least one heterocyclic compound, the heterocyclic compound including a carbazole group and a heterocyclic group bonded with the carbazole group.