Chan Ki

Chan Ki Ha, Incheon KR

Patent application number	Description	Published
20090166630	Array substrate of liquid crystal display and method for fabricating the same - A thin film transistor (TFT) for a liquid crystal display device includes a gate electrode, a source electrode, a drain electrode, an active region including a first semiconductor layer and a second semiconductor layer interposed within the first semiconductor layer, and an ohmic contact layer formed on the active region, wherein the source and drain electrodes are formed on the ohmic contact layer.	07-02-2009

Patent application number	Description	Published
20100259657	IMAGE SENSOR MODULE - An image sensor module is presented which includes a semiconductor chip, a holder and a coupling member. The semiconductor chip has a semiconductor chip body; an image sensing section over the semiconductor chip body; and bonding pads on the semiconductor chip body. The holder is mounted over the semiconductor chip and has an insulation section over the semiconductor chip body; connection patterns on the insulation section which are electrically coupled to the bonding pads; and a transparent cover over the image sensing section which is connected to the insulation section. The coupling member is interposed between the holder and the semiconductor chip for coupling together the holder to the semiconductor chip.	10-14-2010

Patent application number	Description	Published
20100177541	VOLTAGE-SOURCED HVDC SYSTEM WITH MODULATION FUNCTION - A voltage-sourced High-Voltage Direct Current (HVDC) apparatus, which converts 3-phase AC voltage from a 3-phase AC power source into high voltage DC through a rectifier including switching elements, is provided. In the apparatus, a rectifier controller receives detected 3-phase currents, apparent power, and active power and generates D and Q-axis signals. A D/Q controller receives the signals and generates active power D-axis signal and apparent power Q-axis signal. A PWM unit generates PWM on/off signals for turning on/off the switching elements based on output signals from the D/Q controller. The D/Q controller includes a rotary converter to convert the D and Q-axis signals into AC signals and D and Q-axis order units coupled thereto, and generates the D and Q-axis signals through the order units. The PWM unit converts the D and Q-axis signals into 3-phase AC signals and compares them with 3-phase triangular waves to generate on/off signals for turning on/off the switching elements.	07-15-2010