Namchul
Namchul Cho, Seoul KR
Patent application number | Description | Published |
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20100079699 | BACK LIGHT UNIT AND LIQUID CRYSTAL DISPLAY USING THE SAME - The disclosure relates to the backlight unit for preventing the optical sheet from cracking and the liquid crystal display using the backlight unit. The backlight unit comprises a light having a plurality of light sources; a bottom cover housing the light and having a first protrusion; a support side engaging to both open ends of the bottom cover to support the light and having a second protrusion; an optical sheet disposing on the light and including a first hook having a first elliptical hole for inserting the first protrusion and a second hook having a second elliptical hole for inserting the second protrusion; and a first slit between an edge of the first hook and the first elliptical hole within the first hook, and a second slit between an edge of the second hook and the second elliptical hole within the second hook. | 04-01-2010 |
20100123852 | BACKLIGHT UNIT AND LIQUID CRYSTAL DISPLAY USING THE SAME - A backlight unit and a liquid crystal display using the same are provided. The backlight unit includes a plurality of lamps, a first balance printed circuit board (PCB) that commonly supplies a high voltage AC signal to electrodes at one side of each of the lamps, a second balance PCB that commonly supplies the high voltage AC signal to electrodes at the other side of each of the lamps, and a bottom cover that receives the lamps and the first and second balance PCBs. A plurality of vibration absorbing holes are formed in an area where the first and second balance PCBs are formed. | 05-20-2010 |
Namchul Cho, Daejeon KR
Patent application number | Description | Published |
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20100025662 | HIGH DENSITY COUPLING OF QUANTUM DOTS TO CARBON NANOTUBE SURFACE FOR EFFICIENT PHOTODETECTION - The present invention relates to a method of preparing a carbon nanotube-quantum dot conjugate having a high density of quantum dots (QDs) on its surface. This method involves providing a plurality of semiconductor quantum dots and providing a thiol-functionalized carbon nanotube having a plurality of terminal thiol groups on its surface. The plurality of semiconductor quantum dots are attached to the surface of the carbon nanotube under conditions effective to yield a carbon nanotube-quantum dot conjugate having a high density of quantum dots on its surface. The present invention also relates to a carbon nanotube-quantum dot conjugate having a high density of quantum dots on its surface. The present invention further relates to a photodetector device. This device includes a substrate and a nanocomposite layer. The nanocomposite layer includes a plurality of the carbon nanotube-quantum dot conjugates previously described. | 02-04-2010 |
Namchul Lee, Burbank, CA US
Patent application number | Description | Published |
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20140270787 | AUTO COMMISSIONING FOR OPTIC DISTRIBUTED ANTENNA SYSTEM - An optic distributed system includes a head end unit (HE) comprising a head end radio frequency unit (HRFU), at least one remote unit (RU), a corresponding optic cable connected between the HRFU and the at least one RU, and a controller configured to detect a forward radio frequency (RF) signal received from a base transceiver station (BTS), to perform a system wide commissioning function on the HRFU corresponding to the detection, to perform the system wide commissioning function on the at least one RU in accordance with a signal intensity of the forward RF signal from the HRFU, and to perform the system wide commissioning function on the optic cable to compensate for losses in the optic cable during signal transmissions between the HRFU and the at least one RU. | 09-18-2014 |