Abstract:
An organic light-emitting device having low-driving voltage, improved efficiency, and long lifespan includes: a first electrode; a second electrode facing the first electrode; a first layer between the first electrode and the second electrode, the first layer including a first compound; a second layer between the first layer and the second electrode, the second layer including a second compound; and a third layer between the second layer and the second electrode, the third layer including a third compound; wherein the first compound does not include a nitrogen-containing heterocyclic group comprising *═N—*′ as a ring forming moiety, and wherein the first compound, the second compound, and the third compound each independently include at least one group selected from groups represented by Formulae A to C:
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 an emission layer and an electron transport region, the electron transport region being between the emission layer and the second electrode; the emission layer includes a first compound represented by any one of the following Formulae 1-1 and 1-2, and the electron transport region includes a second compound represented by any one of the following Formulae 2-1 and 2-2:
Abstract:
An organic light-emitting device includes a first electrode; a second electrode facing the first electrode; and an emission layer between the first electrode and the second electrode, the emission layer including a dopant, a first host, and a second host. The dopant is a delayed fluorescence emitting material, and a triplet energy of the first host, EH1(T1) and a triplet energy of the second host, EH2(T1) are each equal to or greater than a triplet energy of the dopant, ED(T1). The triplet energy of the first host, EH1(T1) is in a range of about 2.6 eV to about 3.1 eV.
Abstract:
An organic light-emitting device with improved efficiency and improved lifetime includes: a first electrode; a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode and including an emission layer. The emission layer includes a first material represented by Formula 1, a second material represented by Formula 2, and a third material different from the second material and represented by Formula 8:
Abstract:
An organic light-emitting device includes a first electrode; a second electrode facing the first electrode; and an organic layer including an emission layer between the first electrode and the second electrode. The emission layer may include a first material represented by Formula 1 and a second material represented by Formula 2:
Abstract:
An organometallic complex represented by Formula 1-1 or Formula 1-2 is provided: wherein in Formulae 1-1 and 1-2, descriptions of R1 to R7, X1, X2, Y1 to Y4, rings A, B, C, and a to e are understood by referring to the description provided herein. An organic light-emitting device includes a first electrode, a second electrode facing the first electrode, and an organic layer that is disposed between the first electrode and the second electrode and includes an emission layer, wherein the organic layer includes at least one organometallic complex represented by Formula 1-1 or Formula 1-2.
Abstract:
A light emitting device includes: a first electrode; a hole transport region disposed on the first electrode; a first emission layer disposed on the hole transport region, and which emits light of a first wavelength; a second emission layer disposed on the hole transport region, and which emits light of a second wavelength different from the first wavelength; an electron transport region disposed on the first emission layer and the second emission layer; a second electrode disposed on the electron transport region; and a capping layer disposed on the second electrode. In exit light emitted to an upper surface of the capping layer, the exit light has a maximum intensity at an azimuth angle of about 25° to about 35°.
Abstract:
Embodiments provide are a light-emitting device and an electronic apparatus including the same, the 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 includes m emitting units and m−1 charge generation units, each arranged between every two adjacent emitting units among the m emitting units. Each of the m emitting units includes a first subpixel, a second subpixel, and a third subpixel, and m is an integer of 2 or more. The m emitting units include a first emitting unit and a second emitting unit, wherein the first emitting unit includes a 1-1 emission layer, a 2-1 emission layer, and a 3-1 emission layer.
Abstract:
A light emitting devices includes a first electrode, a hole transport region on the first electrode, a first emission layer on the hole transport region, the first emission layer to emit light of a first wavelength, a second emission layer on the hole transport region and to emit light of a second wavelength, an electron transport region on the first and second emission layers, and a second electrode on the electron transport region. The first emission layer includes a first sub-emission layer including a first hole transport host and a first sub-dopant to emit the light of the first wavelength, and a second sub-emission layer including a first electron transport and a second sub-dopant to emit the light of the first wavelength. The second emission layer includes a second hole transport host, a second electron transport host, and a second dopant to emit the light of the second wavelength.