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Jun-Ho Choi, Yongin-Si KR

Jun-Ho Choi, Yongin-Si KR

Patent application numberDescriptionPublished
20080211375FIELD EMITTER AND METHOD OF OPERATING THE SAME - A field emitter includes a cathode, a field emission point part, a first anode, a charge storing plate, and a second anode. The field emission point part faces the first anode and is disposed at a first surface of and electrically connected to the cathode. The charge storing plate is disposed at a second surface, opposite the first surface, of the cathode. The second anode faces the second surface of the cathode. The charge storing plate is interposed between the second anode and the second surface of the cathode. Even if substantially the same electric field is formed in the field emitter as in a field emitter without the charge storing plate, the field emitter having the charge storing plate induces a more effective field emission current than the field emitter without the charge storing plate.09-04-2008
20080224602WHITE ORGANIC LIGHT EMITTING DEVICE - A white organic light emitting device includes: an anode formed on a substrate; a first emissive layer, in which a first sub-emissive layer and a second sub-emissive layer are stacked, formed on the substrate; a second emissive layer, in which a third sub-emissive layer and a fourth sub-emissive layer are stacked, formed on the first emissive layer; a first intermediate layer supplying electrons to the first emissive layer and a second intermediate layer supplying holes to the second emissive layer, wherein the first and second intermediate layers are formed between the first emissive layer and the second emissive layer; and a cathode formed on the second emissive layer.09-18-2008
20080251786ORGANIC LIGHT EMITTING ELEMENT AND ORGANIC LIGHT EMITTING DEVICE - An organic light emitting element according to an exemplary embodiment includes: a first electrode; a hole injection layer contacting the first electrode; a first emission layer comprising at least two sublayers emitting different color lights and contacting the hole injection layer; a first impurity layer of a first conductive type contacting the first emission layer; a second impurity layer of a second conductive type contacting the first impurity layer; a second emission layer comprising at least two sublayers emitting different color lights and contacting the second impurity layer; a electron injection layer contacting the second emission layer; and a second electrode contacting the electron injection layer.10-16-2008
20090200921ORGANIC LIGHT EMITTING DIODE DISPLAY AND METHOD FOR MANUFACTURING THE SAME - An organic light emitting diode (“OLED”) display includes first to third pixels each displaying a different color, wherein each pixel includes a first electrode, a second electrode facing the first electrode, and an emission layer positioned between the first and second electrodes, wherein first electrodes of first and second pixels are a single layer including a conductive oxide, respectively. A first electrode of the third pixel includes a lower first electrode including a conductive oxide, an intermediate first electrode formed on the lower first electrode and including a semitransparent conductor which forms microcavities with the second electrode, and an upper first electrode formed on the intermediate first electrode and including a conductive oxide. A method for manufacturing the OLED is also disclosed.08-13-2009
20090200922ORGANIC LIGHT EMITTING DIODE DISPLAY AND METHOD FOR MANUFACTURING THE SAME - A method for manufacturing an organic light emitting diode (“OLED”) display which includes first and second pixels each displaying a different color, the method includes: sequentially depositing a first transparent conductive layer and a translucent conductive layer; forming an intermediate first electrode on the second pixel by photolithography and etching of the translucent conductive layer; depositing a second transparent conductive layer on the intermediate first electrode and the first transparent conductive layer; forming a first electrode of the first pixel which includes upper and lower layers on the first pixel and a first electrode of the second pixel which includes a lower first electrode, an intermediate first electrode, and an upper first electrode by photolithography and etching of the second transparent conductive layer and the first transparent conductive layer; forming an emission layer on the first electrodes of the first and second pixels; and forming a second electrode on the emission layer.08-13-2009
20090251048ORGANIC LIGHT EMITTING DEVICE AND MANUFACTURING METHOD THEREOF - The present invention relates to an organic light emitting device including a substrate, an insulating layer disposed on the substrate, a first electrode disposed on the insulating layer, an organic light emitting member disposed on the first electrode, and a second electrode disposed on the organic light emitting member. The insulating layer includes a furrow corresponding to at least one edge of the first electrode, and at least a portion of the second electrode is disposed in the furrow.10-08-2009
20090261712ORGANIC LIGHT EMITTING DIODE DISPLAY AND METHOD FOR MANUFACTURING THE SAME - The present invention relates to an organic light emitting device and a manufacturing method. The organic light emitting device includes a first signal line and a second signal line crossing each other, a switching thin film transistor connected to the first signal line and the second signal line, a driving thin film transistor connected to the switching thin film transistor, an organic layer covering the first signal line, the second signal line, the switching thin film transistor, and the driving thin film transistor, a pixel electrode disposed on the organic layer and connected to the driving thin film transistor, a pixel-defining layer disposed on the organic layer and enclosing the pixel electrode, a blocking film including an inorganic insulating layer and covering the pixel-defining layer and edges of the pixel electrode, a light emitting member disposed on the pixel electrode and a common electrode disposed on the light emitting member.10-22-2009
20100084969ORGANIC LIGHT EMITTING DISPLAY AND METHOD OF MANUFACTURING THE SAME - An organic light emitting display (OLED) includes a substrate, a first electrode, an organic light emitting layer, and a second electrode, which are sequentially formed on the substrate. The second electrode is formed by an imprint method to have different thickness in different regions thereof. Thus, an amount of light exiting the OLED increases because the second electrode is thinner in an area where the light exits, and an electrical resistance of the second electrode is reduced because the second electrode is thicker in the peripheral area.04-08-2010
20100102320DISPLAY DEVICE - A display device is provided. The display device includes a substrate, a light blocking member formed on the substrate as a plurality of light blocking portions separated from each other, a thin film transistor including a gate line, a data line, and a semiconductor layer formed on the light blocking member, a plurality of color filters formed on the gate line, the data line, and the thin film transistor, a pixel electrode formed on the color filters and connected to the thin film transistor, and a light blocking filter covering a portion of a separation region separating the light blocking portions.04-29-2010
20100102333ORGANIC LIGHT EMITTING DISPLAY AND FABRICATING METHOD THEREOF - An organic light emitting display includes an insulating substrate having a first area, a second area, and a third area, an organic layer located in the second area, a pixel electrode located on the organic layer in the first area and the second area, and a partition wall including an opening exposing a portion of the pixel electrode. The organic light emitting display further includes an organic light emitting member located in the opening and a common electrode located on the organic light emitting member. The opening is disposed in the first area, and the third area includes a trench separating the second area from an adjacent second area.04-29-2010
20100194268Organic light emitting display and fabricating method thereof - An organic light emitting display according to an exemplary embodiment of the present invention includes a first pixel to represent a white color, a second pixel to represent a different color from the first pixel, a pixel electrode disposed in each of the first and the second pixels, an organic light emitting member disposed on the pixel electrode, and a common electrode disposed on the organic light emitting member. The first pixel includes a first emission area and a first optical filter, and the second pixel includes a second emission area and a second optical filter.08-05-2010

Patent applications by Jun-Ho Choi, Yongin-Si KR