The present specification provides a benzocarbazole-based compound of chemical formula 1 and an organic light-emitting device comprising same. The benzocarbazole-based compound as a material of an organic material layer of the organic light emitting device provides enhanced efficiency, low driving voltage and increased lifetime. ##STR00001##

The present invention relates to a novel polycyclic compound employed in an organic layer of an organoelectro luminescent device, wherein the organoelectro luminescent device employing the compound according to the present invention has remarkably improved luminous efficiency. According to the present invention, it is possible to implement a highly efficient organoelectro luminescent device that can be effectively applied to various display devices.

The present disclosure relates to an organic light-emitting diode having a low driving voltage and long lifespan and more particularly, to an organic light-emitting diode, comprising a first electrode, a second electrode facing the first electrode, and a light-emitting layer interposed therebetween, wherein the light-emitting layer contains at least one of the amine compounds represented by the following Chemical Formula A or Chemical Formula B, plus the compound represented by Chemical Formula D. The structures of Chemical Formulas A, B, and D are the same as in the specification.

A printer deposits material onto a substrate as part of a manufacturing process for an electronic product; at least one transported component experiences error, which affects the deposition. This error is mitigated using transducers that equalize position of the component, e.g., to provide an “ideal” conveyance path, thereby permitting precise droplet placement notwithstanding the error. In one embodiment, an optical guide (e.g., using a laser) is used to define a desired path; sensors mounted to the component dynamically detect deviation from this path, with this deviation then being used to drive the transducers to immediately counteract the deviation. This error correction scheme can be applied to correct for more than type of transport error, for example, to correct for error in a substrate transport path, a printhead transport path and/or split-axis transport non-orthogonality.

A method of manufacturing a highly conductive polymer thin film is proposed. The method includes a step of coating a substrate with a first dopant solution including a polymer material and a first dopant to form a conductive polymer thin film subjected to first conductive treatment; and a step of performing second conductive treatment using a second dopant solution including pyronin B on the conductive polymer thin film to form a highly conductive polymer thin film.

The present invention relates to a polymer, an organic solar cell comprising the polymer, and a perovskite solar cell comprising the polymer. The polymer according to the present invention has excellent absorption ability for visible light and an energy level suitable for the use as an electron donor compound in a photo-active layer of the organic solar cell, thereby increasing the light conversion efficiency of the organic solar cell. In addition, the polymer according to the present invention has high hole mobility, and is used as a compound for a hole transport layer, and thus can improve efficiency and service life of the perovskite solar cell without an additive.

Provided are: an organic electronic element comprising an anode, a cathode, and an organic material layer between the anode and the cathode; and an electronic device comprising the organic electronic element, wherein the organic material layer comprises compounds represented by Formula 1 and Formula 1, respectively, and thus can lower the driving voltage of the organic electronic element and improve the luminosity and lifespan thereof.

Provided is an organic light emitting device comprising: an anode; a cathode; and a light-emitting layer disposed between the anode and the cathode, wherein the light-emitting layer comprises a compound of the following Chemical Formula 1, a compound of the following Chemical Formula 2, and a compound of the following Chemical Formula 3;

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as defined in the specification.

A display substrate has a display region. The display region includes at least a first region, and the first region includes a plurality of first sub-pixel regions. The display substrate includes: a substrate; a plurality of first sub-pixels disposed on a side of the substrate; and a pattern layer disposed on a side of the plurality of first sub-pixels away from the substrate. The pattern layer includes a first pattern and a plurality of second patterns. Boundaries of orthographic projections of part of the second patterns located in the first region on the substrate respectively coincide with boundaries of the first sub-pixel regions; or boundaries of the first sub-pixel regions are respectively located within boundaries of orthographic projections of part of the second patterns located in the first region on the substrate. A portion of the first pattern located in the first region is electrically connected to the first cathode.

Provided are an organic electric element comprising as a phosphorescent host material, a mixture of the compounds of Formula (1) and Formula (2), and an organic electronic device or apparatus thereof for achieving a high luminous efficiency, a low driving voltage, and an improved lifespan.