Abstract:
A light-emitting device includes: a first electrode; a second electrode; m emission units between the first electrode and the second electrode; and m−1 charge generation layer(s), each located between two adjacent emission units, and including m−1 n-type charge generation layer(s) and m−1 p-type charge generation layer(s). The m emission units each include a hole transport region, an emission layer, and an electron transport region. A first hole transport region in a first emission unit closest to the first electrode may include a hole transfer layer and a hole injection layer and/or a hole transport layer. The hole transfer layer may be a single layer consisting of an electron-transporting compound including a phosphine oxide group (P═O), a phosphine sulfide group (P═S), a π electron-deficient nitrogen-containing C1-C60 cyclic group, or any combination thereof. A highest occupied molecular orbital (HOMO) energy level of the hole transfer layer may be about −6.0 eV to about −5.3 eV.
Abstract:
An organic light emitting diode includes: a first electrode; a hole transport region disposed on the first electrode; an emitting layer disposed on the hole transport region, the emitting layer configured to emit light; an electron transport region disposed on the emitting layer; a second electrode disposed on the electron transport region; a capping layer disposed on the second electrode; and a compensation layer disposed on the capping layer, the compensation layer including a compensation pattern, wherein the compensation pattern is configured to compensate a phase of an inclined light, and wherein the inclined light is a light emitted from the emitting layer.
Abstract:
A light-emitting device includes: a first electrode; a second electrode facing the first electrode; and an interlayer between the first electrode and the second electrode and including an emission layer, wherein the emission layer includes a first emission layer and a second emission layer contacting each other, the first emission layer includes a first host and a first dopant, the second emission layer includes a second host and a second dopant, the first dopant includes a fluorescent dopant, the second dopant includes a phosphorescent dopant, a triplet energy level of the first host is lower than a triplet energy level of the first dopant, and a triplet energy level of the second host is higher than a triplet energy level of the second dopant.
Abstract:
An organic light emitting device including a first electrode; a self-assembled monolayer on the first electrode; a hole control layer on the self-assembled monolayer; a light emitting layer on the hole control layer; an electron control layer on the light emitting layer; and a second electrode on the electron control layer, wherein the self-assembled monolayer includes a plurality of organic molecules, each of the plurality of organic molecules having a head bonded to the first electrode, a terminal end adjacent to the hole control layer, and a tail connecting the head with the terminal end.
Abstract:
An organic light emitting diode (“OLED”) display device includes: a substrate; a reflective layer disposed on the substrate; a refractive index anisotropic layer disposed on the reflective layer; a first electrode disposed on the refractive index anisotropic layer; an organic light emitting layer disposed on the first electrode; and a second electrode disposed on the organic light emitting layer.
Abstract:
Provided is a light-emitting device including: a first electrode; a second electrode facing the first electrode; and an interlayer between the first electrode and the second electrode and including an emission layer, wherein the interlayer includes a hole injection layer and an electron transport layer, the hole injection layer includes a first electron transport compound, and a hole mobility (MH) and electron mobility (ME) of the first electron transport compound satisfy following Equation (1): Equation (1) MH≤ME×0.95 (1).
Abstract:
A light-emitting device includes a first electrode, a second electrode facing the first electrode, and an interlayer disposed between the first electrode and the second electrode. The emission layer includes a first emission layer and a second emission layer. The first emission layer includes a first compound, and the second emission layer includes a second compound. The first compound includes at least one deuterium (D), and the second compound does not include deuterium. An electronic apparatus including the light-emitting device is also provided.
Abstract:
An organic light emitting diode includes: a first electrode layer; a second electrode layer on the first electrode layer and facing the first electrode layer; a first light emitting layer between the first electrode layer and the second electrode layer and comprising a phosphorescent material; a first hole control layer between the first electrode layer and the first light emitting layer; a second light emitting layer between the first light emitting layer and the second electrode layer and comprising a fluorescent material; and a charge generating layer between the first light emitting layer and the second light emitting layer, the first hole control layer having a thickness equal to or greater than 100 angstroms and equal to or smaller than 900 angstroms.
Abstract:
Provided is an organic electroluminescence display device including a base member, a display member disposed on the base member and including an organic electroluminescent element; and an encapsulating member disposed on the display member and encapsulating the display member. The encapsulating member includes a first inorganic layer disposed on the display member; a first organic layer disposed on the first inorganic layer; and a second inorganic layer disposed on the first organic layer. The first inorganic layer has a multilayer structure in which first layers having a first refractive index and second layers having a second refractive index different from the first refractive index are alternately disposed. Each of the first organic layer and the second inorganic layer has a single layer structure.
Abstract:
A display device having an uneven electrode enhances display quality by improving the emission efficiency of the vertically polarized light. The method for fabricating a display device includes forming a thin film transistor on a base substrate, forming a first electrode connected to the thin film transistor, forming a block copolymer layer on the first electrode, patterning the block copolymer layer and forming a uneven first electrode having a plurality of electrode grooves by etching the first electrode exposed by the block copolymer pattern, and forming a light emitting layer on the uneven first electrode.