Abstract: A chimney tray for a reactor, wherein a gas reactant and a liquid reactant are mixed in chimneys to improve the dispersion performance of the liquid reactant on the catalyst bed of a fixed bed reactor thereby increasing the contact efficiency between the liquid reactant and the catalyst depending on the uniformity of flow of the liquid reactant, resulting in increased reaction efficiency, and which includes a tray having a plurality of through-holes, and a plurality of chimneys perpendicularly inserted into the through-holes of the tray and having one or more outlets penetrating there through and facing each other, wherein each of the plurality of chimneys includes a conical lower end which is formed such that it extends from the lower surface of the tray to make an angle of 10˜40° with respect to the direction of the normal line of the tray.

Abstract: An aligning method of a ferroelectric liquid crystal display includes; disposing a first mask and a second mask, each of which has opening regions and blocking regions arranged in alternating fashion in vertical direction and horizontal direction corresponding to liquid crystal cells of the liquid crystal display; and injecting a ferroelectric liquid crystal material within the liquid crystal panel.

Abstract: An aligning method of a ferroelectric liquid crystal display includes; disposing a first mask and a second mask, each of which has opening regions and blocking regions arranged in alternating fashion in vertical direction and horizontal direction corresponding to liquid crystal cells of the liquid crystal display; and injecting a ferroelectric liquid crystal material within the liquid crystal panel.

Abstract: An aligning method of a ferroelectric liquid crystal display includes; disposing a first mask and a second mask, each of which has opening regions and blocking regions arranged in alternating fashion in vertical direction and horizontal direction corresponding to liquid crystal cells of the liquid crystal display; and injecting a ferroelectric liquid crystal material within the liquid crystal panel.

Abstract: An apparatus and method for driving a light source of a liquid crystal display device are provided. The apparatus includes a liquid crystal display panel, a backlight unit including a plurality of light emitting diodes (LEDs) to irradiating light to the liquid crystal display panel, and a driver to selectively drive the LEDs and selectively control a brightness of light generated by the LEDs.

Abstract: Provided are an apparatus and method for detecting a Dynamic Link Library (DLL) inserted by a malicious code. The method includes collecting first DLL information from an image file of a process before the process is executed; collecting second DLL information loaded into a memory as the process is executed; comparing the first DLL information with the second DLL information to extract information on an explicit DLL; and determining whether the explicit DLL is a DLL inserted by a malicious code or not.

Abstract: A ferroelectric liquid crystal display and method of driving the same according to an impulse-type method improves a voltage holding ratio. The ferroelectric liquid crystal display and method of driving the same applies a scan pulse at least twice to each gate line of a liquid crystal display panel injected with ferroelectric liquid crystal material during one frame period of the liquid crystal display panel. Data voltages are applied to data lines of liquid crystal display panel in synchrony with the scan pulse.

Abstract: An aligning method of a ferroelectric liquid crystal display includes; disposing a first mask and a second mask, each of which has opening regions and blocking regions arranged in alternating fashion in vertical direction and horizontal direction corresponding to liquid crystal cells of the liquid crystal display; and injecting a ferroelectric liquid crystal material within the liquid crystal panel.

Abstract: A Bluetooth headset is disclosed that includes a body having a microphone and an earphone having a Bluetooth module therein; an ear hook having a curved shape, fixed to the body, and worn on a user's ear; and an antenna module disposed to the ear hook. The antenna module includes an antenna radiator mounted inside the ear hook; and an electrical connection element which is electrically connected to the antenna radiator, is drawn out from one connection end of the body of the ear hook, and is power-fed by the Bluetooth module included in the body.

Abstract: A liquid crystal display includes a liquid crystal injected between upper and lower plates, wherein the upper and lower plates have electrodes respectively formed thereon, an upper alignment film formed on the upper plate and a lower alignment film formed on the lower plate, wherein only one of the alignment films on the upper plate and the lower plate is aligned in to determine an incipient alignment direction of the liquid crystal.

Abstract: An electric field alignment method of liquid crystal display including the steps of: applying a first voltage to a gate terminal of a thin film transistor for driving a liquid crystal cell having ferroelectric liquid crystal, wherein the first voltage is below a threshold voltage of the thin film transistor; and supplying a second voltage for electric field alignment of the ferroelectric liquid crystal to the liquid crystal cell by using leakage current of the thin film transistor generated due to the first voltage.

Abstract: A method of aligning a ferroelectric liquid crystal (FLC) material capable of facilitating the restoration of an initial alignment of FLC material as a result of mounting of driving circuits includes simultaneously applying a first voltage to a Vcom terminal formed on a source printed circuit board and applying a second voltage to a GND terminal also formed on the source printed circuit board while the first voltage is also applied to a Vcom terminal formed on a gate printed circuit board and while the second voltage is also applied to a GND terminal formed on the gate printed circuit board.

Abstract: Disclosed is a built-in antenna module for a portable wireless terminal with a mainboard. In the built-in antenna module, a carrier fixed on the mainboard has a top surface with a predetermined area and a side surface with a predetermined height, at least one communication radiator is installed on a first predetermined portion of the top surface of the carrier, and a Bluetooth radiator is installed on a second predetermined portion of the top surface of the carrier. Also, the communication radiator and the Bluetooth radiator are electrically connected to the mainboard. Since the communication radiator and the Bluetooth radiator are installed within the same built-in antenna module of the portable wireless terminal, installation of an additional Bluetooth radiator is not required, thereby reducing the size of the portable wireless terminal.

Abstract: A method of aligning Half V-Switching Mode ferroelectric liquid crystal material in the presence of an applied electric field, a driving method, and an apparatus for driving a ferroelectric liquid crystal display using the same has a high response speed characteristics and a wide viewing angle characteristics. The liquid crystal material has a small capacitance, C, and is driven according to a double frequency column inversion driving method operating at about 120 Hz to display a picture.

Abstract: An electric field alignment method of liquid crystal display including the steps of: applying a first voltage to a gate terminal of a thin film transistor for driving a liquid crystal cell having ferroelectric liquid crystal, wherein the first voltage is below a threshold voltage of the thin film transistor; and supplying a second voltage for electric field alignment of the ferroelectric liquid crystal to the liquid crystal cell by using leakage current of the thin film transistor generated due to the first voltage.

Abstract: A method of aligning a ferroelectric liquid crystal (FLC) material capable of facilitating the restoration of an initial alignment of FLC material as a result of mounting of driving circuits includes simultaneously applying a first voltage to a Vcom terminal formed on a source printed circuit board and applying a second voltage to a GND terminal also formed on the source printed circuit board while the first voltage is also applied to a Vcom terminal formed on a gate printed circuit board and while the second voltage is also applied to a GND terminal formed on the gate printed circuit board.

Abstract: A ferroelectric liquid crystal display and method of driving the same according to an impulse-type method improves a voltage holding ratio. The ferroelectric liquid crystal display and method of driving the same applies a scan pulse at least twice to each gate line of a liquid crystal display panel injected with ferroelectric liquid crystal material during one frame period of the liquid crystal display panel. Data voltages are applied to data lines of liquid crystal display panel in synchrony with the scan pulse.

Abstract: A liquid crystal display includes a liquid crystal injected between upper and lower plates, wherein the upper and lower plates have electrodes respectively formed thereon, an upper alignment film formed on the upper plate and a lower alignment film formed on the lower plate, wherein only one of the alignment films on the upper plate and the lower plate is aligned in to determine an incipient alignment direction of the liquid crystal.

Abstract: A method of aligning Half V-Switching Mode ferroelectric liquid crystal material in the presence of an applied electric field, a driving method, and an apparatus for driving a ferroelectric liquid crystal display using the same has a high response speed characteristics and a wide viewing angle characteristics. The liquid crystal material has a small capacitance, C, and is driven according to a double frequency column inversion driving method operating at about 120 Hz to display a picture.