| Patent application number | Description | Published |
|---|
| 20090239149 | LITHIUM-MANGANESE-TIN OXIDE CATHODE ACTIVE MATERIAL AND LITHIUM SECONDARY CELL USING THE SAME - A cathode thin film for a lithium secondary cell, which uses a cathode active material substituting Sn for Mn in lithium manganese oxide, has a high discharge capacity and an improved cycle property. | 09-24-2009 |
| 20090251026 | Piezo Electric Linear Motor - The present invention relates to a piezoelectric linear motor that can make relatively low abrasion and accurate linear movement since stationary AC voltages are applied to two piezoelectric elements with a phase difference. The present invention provides a piezoelectric linear motor, comprising: a piezoelectric substrate having a first piezoelectric element and a second piezoelectric element, wherein AC voltages are applied to the first and second piezoelectric elements with a phase difference; a metallic elastic body having first and second elastic bodies coupled to the piezoelectric elements and a central protrusion protruded at the central portion connecting the first and second elastic bodies, wherein the central protrusion oscillates elliptically during an application of the voltage; and a mover brought into contact with the central protrusion of the metallic elastic body for a linear movement, and wherein the movement of the mover is orthogonal to the central protrusion. | 10-08-2009 |
| 20100032645 | AC-DRIVEN LIGHT EMITTING DEVICE HAVING SINGLE ACTIVE LAYER STRUCTURE AND MANUFACTURING METHOD THEREOF - The present invention relates to an AC voltage-driven light emitting device having a single active layer of a core-shell structure (p-i-n structure) in which intrinsic semiconductor nanocrystals, exciton combination centers, are uniformly and isotropically distributed around p-type polymer particles, and n-type small molecular particles surround the semiconductor nanocrystals and p-type polymer, and a manufacturing method thereof. An active layer of a core-shell structure using a polymer-semiconductor nano hybrid in the light-emitting device has an inversion symmetry characteristic showing the same current-voltage characteristic during application of a voltage in a forward direction and a reverse direction. Therefore, due to this inversion symmetry characteristic, the light emitting can be driven by even an AC voltage. Also, since the device can be driven by an AC voltage, limitations of an existing DC voltage-driven organic light emitting diode, that is, destruction or a defect of the device by an overcurrent and generation of a dark spot by degradation of local constituent organic materials are solved. | 02-11-2010 |
| 20100035749 | Dielectric Thin Film Composition Showing Linear Dielectric Properties - The present invention relates to a dielectric thin film composition showing linear dielectric properties, in which tin oxides (SnO | 02-11-2010 |
| 20100248578 | DISPLAY PANEL AND MANUFACTURING METHOD THEREOF - A display panel includes a base substrate, a first linear pattern on the base substrate along a first direction and a second linear pattern on the first linear pattern along a second direction crossing the first direction. The display panel further includes a color filter layer on the first linear pattern and an overcoat layer on the second linear pattern. The color filter layer includes a number of color filter patterns disposed along the first direction. The first direction is perpendicular to the second direction. The invention also discloses a fabrication method of the display panel. The method includes forming the first linear pattern and forming the second linear pattern. Here, a gravure printing forms the first and the second linear patterns. The fabrication method further includes forming the color filter layer. The method further includes flattening the color filter layer and forming an overcoat layer on the second linear pattern. | 09-30-2010 |
| 20100294355 | SOLAR CELL DEVICE COMPRISING A CONSOLIDATED CORE/SHELL POLYMER-QUANTUM DOT COMPOSITE AND METHOD OF THE PREPARATION THEREOF - A high-efficiency solar cell device of the present invention comprising an active layer composed of a p-i-n form polymer-quantum dot composite having a consolidated core/shell structure which is formed by heating a coating layer of a solution of an organic-inorganic mixture of a p-type organic polymer, an n-type organic compound, and a semiconductor quantum dot dissolved in an organic solvent is capable of overcoming the shortcoming of the conventional solar cell devices having a multi-layered thin film structure. | 11-25-2010 |
| 20100302170 | METHOD FOR OPERATING INPUT MODE OF MOBILE TERMINAL COMPRISING A PLURALITY OF INPUT MEANS - A method of operating an input mode of a mobile terminal having a first input means and a second input means is provided. The method includes: displaying an input screen which is set as a first input mode; determining whether the second input means is in an activated state; and displaying a changed input screen which is set as a second input mode when the second input means is determined to be in an activated state. | 12-02-2010 |
| 20110001988 | Apparatus for Measuring Thickness - An apparatus for measuring a thickness, which includes: a first beam splitter for reflecting or transmitting a ray irradiated from an optical source or a ray reflected by a measurement object; a first lens part which condenses a ray to the measurement object and generates a reference ray having a difference of a light path in comparison with a ray reflected by the measurement object; a second lens part for condensing a ray to the object to be measured; an interference light detector which corresponds to at the first lens part so as to form a light path and detects an interference signal generated by the ray reflected by the measurement object and the reference ray; a spectroscopic detector which corresponds to the second lens part so as to form a light path different from the light path formed by the interference light detector and splits the ray reflected by the measurement object so as to detect an intensity and a wavelength of each split ray; and a light path converter for selectively transmitting a ray to one of the interference light detector and the spectroscopic detector, wherein position exchanging is performed between the first lens part and the second lens part. | 01-06-2011 |
