Abstract: The present disclosure relates to an organic electroluminescent compound represented by formula 1, a plurality of host materials comprising at least one first host compound and at least one second host compound, and an organic electroluminescent device comprising the same. By comprising the organic electroluminescent compound represented by formula 1, or a specific combination of compounds wherein the first host compound is represented by formula 1, and the second host compound is represented by formula 2, it is possible to provide an organic electroluminescent device having improved driving voltage, luminous efficiency, power efficiency, and/or lifespan characteristics.

Abstract: The present disclosure relates to an organic electroluminescent device comprising a compound represented by formula 1, and can provide an organic electroluminescent device having a plurality of light-emitting layers, which is superior in driving voltage, luminous efficiency, external quantum efficiency, and/or color coordinate properties as compared to the conventional organic electroluminescent device.

Abstract: The present invention relates to a system for survival detection in a dangerous space. According to the present invention, the survival and location of a subject located in a dangerous space can be effectively detected from the outside according to ultra-wideband (UWB) radar.

Abstract: A display device includes the following elements: a light emitting diode; a first transistor including a drain electrode, a source electrode, and a gate electrode, the drain electrode being connected to the light emitting diode; a second transistor connected between a data line and the source electrode; a third transistor connected between the drain electrode and the gate electrode; and a fourth transistor connected between a first initialization voltage source and the gate electrode. The third transistor is off for a first period, on for a second period immediately following the first period, and off for a third period immediately following the second period. The fourth transistor is off for a fourth period, on for a fifth period immediately following the fourth period, and off for a sixth period immediately following the fifth period. The second period overlaps the fifth period.

Abstract: The present disclosure relates to an organic electroluminescent compound, an organic electroluminescent material comprising the same, and an organic electroluminescent device. By comprising an organic electroluminescent compound according to the present disclosure and an organic electroluminescent material comprising the same, an organic electroluminescent device having low driving voltage and/or high luminous efficiency and/or long lifespan can be provided.

Abstract: The present disclosure relates to an organic light emitting diode that comprises an organic compound in which a carbazole moiety fused with an aromatic ring and a hetero aromatic ring is linked to a triazine moiety substituted with aromatic and/or hetero aromatic groups via an aromatic linker, and at least one protium constituting the aromatic and/or hetero aromatic groups of the triazine moiety and the aromatic linker moiety is substituted with deuterium, and an organic light emitting device including the diode. The molecular conformation of the deuterium-substituted triazine moiety and the aromatic linker moiety is not deteriorated and dissolved, and therefore, the organic compound can implement luminous efficiency and luminous lifetime as an organic compound in which whole protiums are substituted with deuteriums.

Abstract: The present invention relates to a plurality of host materials and an organic electroluminescent device comprising the same. By comprising a specific combination of a plurality of host compounds, the organic electroluminescent device according to the present invention provides high efficiency and long lifespan.

Abstract: Methods, systems, and apparatus for ground plane filtering of video events are disclosed. A method includes obtaining a first set of images of a scene from a camera; determining a ground plane from the first set of images of the scene; obtaining a second set of images of the scene after the first set of images of the scene is obtained; determining that movement shown by a group of pixels in the second set of images of the scene satisfies motion criteria; determining that the ground plane corresponds with at least a portion of the group of pixels; and in response to determining that movement shown by the group of pixels in the second set of images of the scene satisfies motion criteria, and that the ground plane corresponds with at least a portion of the group of pixels, classifying the group of pixels as showing ground plane based motion.

Abstract: The present disclosure relates to an organic electroluminescent compound, an organic electroluminescent material comprising the same, and an organic electroluminescent device. By comprising the organic electroluminescent compound according to the present disclosure, an organic electroluminescent device having low driving voltage and/or high luminous efficiency and/or long lifespan can be provided.

Abstract: The present invention relates to a system for survival detection in a dangerous space. According to the present invention, the survival and location of a subject located in a dangerous space can be effectively detected from the outside according to ultra-wideband (UWB) radar.

Abstract: The present invention relates to an organic electroluminescent device comprising at least one light-emitting layer between an anode and a cathode, wherein the light-emitting layer comprises a host and a phosphorescent dopant; the host comprises plural host compounds; at least a first host compound of the plural host compounds has a structure of a nitrogen-containing heterocyclic linker bonded to a nitrogen atom of a carbazole of an indole-carbazole, indene-carbazole, benzofuran-carbazole, or benzothiophene-carbazole residue; and a second host compound has a carbazole-aryl-carbazole or carbazole-carbazole structure. According to the present invention, by using a specific multi-component host different from the conventional organic electroluminescent device, an organic electroluminescent device of significantly improved lifespan is provided.

Abstract: The present invention relates to an organic electroluminescent device comprising at least one light-emitting layer between an anode and a cathode, wherein the light-emitting layer comprises a host and a dopant; the host consists of multi-component host compounds; at least a first host compound of the multi-component host compounds is a specific bicarbazole derivative containing an aryl group, and a second host compound is a specific carbazole derivative including a nitrogen-containing heteroaryl group. According to the present invention, an organic electroluminescent device using the multi-component host compounds has a high efficiency and long lifespan compared to the conventional organic electroluminescent device using one component of a host.

Abstract: The present disclosure relates to an organic electroluminescent compound represented by formula 1, a plurality of host materials comprising a specific combination of compounds, and an organic electroluminescent device comprising the same. By comprising the organic electroluminescent compound or the specific combination of compounds according to the present disclosure as host materials, it is possible to provide an organic electroluminescent device with a longer lifetime property compared to conventional organic electroluminescent devices.

Abstract: A new luminescent material and an electroluminescent display device using the same are disclosed, in which the luminescent material includes a compound expressed by the following chemical formula 1 and may be used as a dopant of a light emitting layer of a green, yellow-green or red color:

Abstract: The present disclosure relates to an organic electroluminescent compound, an organic electroluminescent material comprising the same, and an organic electroluminescent device. By comprising the organic electroluminescent compound according to the present disclosure, an organic electroluminescent device having improved driving voltage and/or luminous efficiency and/or lifespan characteristics can be provided, compared with the organic electroluminescent device comprising a conventional organic electroluminescent compound.

Abstract: The present disclosure relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. By comprising the organic electroluminescent compound according to the present disclosure, it is possible to provide an organic electroluminescent device having improved driving voltage, luminous efficiency, lifetime and/or power efficiency properties.

Abstract: Disclosed herein is an organic light emitting diode device. The organic light emitting diode device includes an anode, a cathode and a light emitting layer. The light emitting layer has a structure where a blue light emitter and a red/green simultaneous light emitter are stacked. The red/green simultaneous light emitter has a structure where a red light emitter and a green light emitter are stacked. The red light emitter includes a red host compound, and in some embodiments, the red host compound includes a spirobisfluorene-based compound where an aryl amino group is substituted. The green light emitter includes a green host compound, and the green host compound includes a mixture of a first green host compound and a second green host compound. In some embodiments, the first green host compound includes a biscarbazole-based compound and the second green host compound includes an indolocarbazole-based compound.

Abstract: The present disclosure relates to an organic electroluminescent compound represented by formula 1 and an organic electroluminescent device comprising the same. By comprising the organic electroluminescent compound according to the present disclosure, it is possible to provide an organic electroluminescent device with a longer lifetime property compared to conventional organic electroluminescent devices.

Abstract: The present disclosure relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. By comprising the organic electroluminescent compound, an organic electroluminescent device having low driving voltage and/or a high luminous efficiency can be provided.

Abstract: An organic light emitting diode display device includes a first substrate including a display region, wherein a plurality of pixel regions are defined in the display region; a first electrode over the first substrate and in each of the plurality of pixel regions; a first bank on edges of the first electrode and including an insulating material blocking penetration of light; a second bank on the first bank and including an insulating material having a hydrophobic property; an organic light emitting layer on the first electrode and a portion of the first bank; and a second electrode on the organic light emitting layer and covering an entire surface of the display region.