Abstract: A composition including a conducting polymer and an ionomer, and an opto-electronic and an electronic device including the composition are provided. The composition is prepared by doping a conducting polymer with an ionomer which has a low water uptake, has a low content of by-products decomposed by a reaction with electrons, and can crosslink with the conducting polymer. Thus, the opto-electronic device including the composition has improved device performance such as device efficiency and lifetime.

Abstract: A pixel structure and an organic light emitting device including the pixel structure has at least one electronic material layer arranged between a lower electrode and an upper electrode. The pixel structure includes the lower electrode arranged in a desired pattern on a substrate and a bank covering the substrate on which the lower electrode is arranged, and defining an opening portion to expose at least a portion of the lower electrode. The area of the opening portion is greater than that of the exposed portion of the lower electrode. The pixel structure further includes an electronic material layer arranged in the opening portion and covering an upper surface of the lower electrode, and the upper electrode arranged on the electronic material layer.

Abstract: An organic electroluminescent device includes: a substrate; a plurality of first electrodes arranged on the substrate; a plurality of banks arranged on the substrate and the first electrodes to define pixels on the first electrodes, the plurality of banks being of an inorganic material; a plurality of separators arranged in stripe shapes on the plurality of banks between the pixels, the plurality of separators being of an organic material; organic Emitting Material Layers (organic EMLs), each having a predetermined color, the organic EMLs being arranged within each of the pixels; and a plurality of second electrodes arranged on the organic EMLs, the plurality of banks, and the plurality of separators.

Abstract: Provided are a highly efficient phosphorescent organometallic complex and an organic electroluminescent (EL) device using the same. The organometallic complex can be used in the formation of an organic layer of the organic EL device, and can emit light in a red wavelength range as a highly efficient phosphorescent material. The organic EL device using the organometallic complex can exhibit high brightness and a low driving voltage.

Abstract: A blue electroluminescent polymer having a phenoxazine-based unit in a polyarylene backbone and an organic electroluminescent device using the polymer. The organic electroluminescent device has improved luminous efficiency and color purity.

Abstract: An organic light emitting diode that uses edge light emission and has a long lifespan. An anode and a cathode are spaced by a pattern distance and they are located at the upper and lower portions of the light emitting part respectively. The organic light emitting diode uses a separate light emission area of the light emitting part for each of the initial and the final usage stages so that a tail drop of the luminance is prevented and the lifespan of the diode is increased.

Abstract: Provided are a highly efficient phosphorescent organometallic complex and an organic electroluminescent (EL) device using the same. The organometallic complex can be used in the formation of an organic layer of the organic EL device, and can emit light in a red wavelength range as a highly efficient phosphorescent material. The organic EL device using the organometallic complex can exhibit high brightness and a low driving voltage.

Abstract: An apparatus and method for microstructures of a display device which focus external light toward light-absorption regions to enhance brightness and contrast of the display device. The display device includes a light absorption layer disposed to one side of a light emission layer. The light absorption layer includes light refracting structures and light absorption elements, wherein each of the light absorption elements is positioned in the light refracting structures. The light directing structures substantially direct incident light toward one of the plurality of light absorption elements positioned therein to reduce the reflection of external light.

Abstract: An organic light emitting device has a structure in which the penetration of harmful materials into an inner functional layer is blocked to prevent the degradation of the performance of the organic light emitting device and an organic electronic device includes such an organic light emitting device.

Abstract: An organic electroluminescent device includes: a substrate; a plurality of first electrodes arranged on the substrate; a plurality of banks arranged on the substrate and the first electrodes to define pixels on the first electrodes, the plurality of banks being of an inorganic material; a plurality of separators arranged in stripe shapes on the plurality of banks between the pixels, the plurality of separators being of an organic material; organic Emitting Material Layers (organic EMLs), each having a predetermined color, the organic EMLs being arranged within each of the pixels; and a plurality of second electrodes arranged on the organic EMLs, the plurality of banks, and the plurality of separators.

Abstract: An organic light emitting diode that uses edge light emission and has a long lifespan. An anode and a cathode are spaced by a pattern distance and they are located at the upper and lower portions of the light emitting part respectively. The organic light emitting diode uses a separate light emission area of the light emitting part for each of the initial and the final usage stages so that a tail drop of the luminance is is prevented and the lifespan of the diode is increased.

Abstract: Disclosed is a method for forming banks during the fabrication of electronic devices incorporating an organic semiconductor material that includes preparing an aqueous coating composition having at least a water-soluble polymer, a UV curing agent and a water-soluble fluorine compound. This coating composition is applied to a substrate, exposed using UV radiation and then developed using an aqueous developing composition to form the bank pattern. Because the coating composition can be developed using an aqueous composition rather than an organic solvent or solvent system, the method tends to preserve the integrity of other organic structures present on the substrate. Further, the incorporation of the fluorine compound in the aqueous solution provides a degree of control over the contact angles exhibited on the surface of the bank pattern and thereby can avoid or reduce subsequent surface treatments.

Abstract: Provided is an organic light emitting device that includes at least one organic layer between a first electrode and an emissive layer wherein the organic layer includes at least two organic materials and at least one of the organic materials consequently has a concentration gradient in the direction from the first electrode to a second electrode through a single solution process by self organization. Since the organic layer has a work function having a gradient in the direction from the first electrode to the second electrode, holes can be injected from the first electrode to the emissive layer, and thereby an organic light emitting device having high efficiency and a long lifetime can be obtained.

Abstract: A conducting polymer, the conducting polymer composition further including an ionomer, and an organic optoelectronic device including the conducting polymer or the composition are provided. The conducting polymer according to the embodiments of the present invention is a self-doped conducting polymer in which conducting polymer chains are grafted in a polyacid. The conducting polymer composition to the present invention is manufactured by blending the self-doped conducting polymer with an ionomer having a physical cross-linking property thereto, and thus they are homogeneously dissolved in water or organic solvents. The conducting polymer and the composition have a good film-forming property and can be easily blended with other organic polymers, and conductivity and a work function thereof is easily controlled according to the content of the ionomer. Also, optoelectronic devices including the conducting polymer composition have high efficiency and a long lifetime.

Abstract: A pixel structure and an organic light emitting device including the pixel structure has at least one electronic material layer arranged between a lower electrode and an upper electrode. The pixel structure includes the lower electrode arranged in a desired pattern on a substrate and a bank covering the substrate on which the lower electrode is arranged, and defining an opening portion to expose at least a portion of the lower electrode. The area of the opening portion is greater than that of the exposed portion of the lower electrode. The pixel structure further includes an electronic material layer arranged in the opening portion and covering an upper surface of the lower electrode, and the upper electrode arranged on the electronic material layer.

Abstract: A nozzle apparatus for an organic light emitting device. The nozzle apparatus includes a nozzle and a pressure regulator. The nozzle discharges organic solution onto a substrate. The pressure regulator controls a discharging quantity of the organic solution through the nozzle. The discharging quantity of the organic solution is minutely controlled through adjusting a length of the nozzle. Therefore, the nozzle apparatus can precisely achieve a small amount of low-viscosity organic solution being discharged onto a substrate to form an organic layer with reduced thickness and narrow width.

Abstract: A method of manufacturing a donor film for an organic light-emitting device (OLED) and a method of manufacturing an OLED having the donor film are provided. The method of manufacturing the donor film for an organic light-emitting device including preparing a base film, and forming an organic luminescence layer pattern by a dispensing method in which a fluid organic material is ejected on the base film through a dispenser needle. The method of manufacturing an organic light-emitting device by the use of the donor film including preparing a first electrode pattern on a substrate, preparing a donor film having an organic luminescence layer pattern that matches the first electrode pattern, transferring the organic luminescence layer pattern of the donor film to the substrate to form a organic luminescence layer pattern on the first electrode pattern, and forming a second electrode on the organic luminescence layer formed on the first electrode pattern.

Abstract: A polymer organic light-emitting device (OLED) is provided to improve efficiency and lifetime of the polymer OLED by preventing the recombination zone from shrinking. The OLED includes a first electrode, a second electrode, and an emission layer disposed between the first electrode and the second electrode. The emission layer includes an emission material and a hole transport material. The emission layer can be built in a single layer or in multi-layers. In the multi-layer structure, one layer includes an emission material and a hole transport material, while the other layer includes an emission material. The polymer OLED presented in this invention exhibits superior properties regarding electron density, brightness, and color purity.

Abstract: A method for forming a pattern of an organic insulating film by forming an electrode on a substrate, coating an imprintable composition thereon to form an organic insulating film, pressurizing and curing the organic insulating film using a patterned mold to transfer a pattern of the mold to the organic insulating film, and etching a portion of the organic insulating film remaining on the electrode. Since a pattern of an organic insulating film can be formed by simple molding without the use of a photoresist, the overall procedure is simplified and eventually an organic thin film transistor with high charge carrier mobility can be fabricated by all wet processes.

Abstract: A composition including a conducting polymer and an ionomer, and an opto-electronic and an electronic device including the composition are provided. The composition is prepared by doping a conducting polymer with an ionomer which has a low water uptake, has a low content of by-products decomposed by a reaction with electrons, and can crosslink with the conducting polymer. Thus, the opto-electronic device including the composition has improved device performance such as device efficiency and lifetime.