摘要:
A vacuum cleaner is disclosed, including suction means for providing suction force, a suction nozzle for drawing room air by the suction force provided from the suction means, a dust collecting box for cleaning, and discharging the room air drawn through the suction nozzle, the dust collecting box having an opening in an upper surface thereof, a filter assembly including an upper holding part selectively fastened to an edge of the opening, the upper holding part having an air discharge hole at a central portion thereof, a lower holding part spaced a distance downward from the upper holding part, and a filter between the upper holding part and the lower holding part for filtering dust from air, the filter having a discharge passage therein, and a lower cover for opening/closing a lower portion of the dust collecting box selectively, thereby permitting easy cleaning and replacement of the dust collector assembly in a vacuum cleaner.
摘要:
A liquid crystal display device includes a first substrate having a plurality of first electrodes, a second substrate facing the first substrate and having a plurality of second electrodes perpendicular to the first electrodes to define sub-pixels at intersection regions between the first and second electrodes, a liquid crystal layer between the first and second substrates, a plurality of color filters between the first and second substrates adapted to correspond to respective sub-pixels, the color filters including first color filters and second color filters having a different shape than the first color filters, a black matrix between the color filters, the black matrix including vertical portions, horizontal portions, and step portions, each of the step portions corresponding to a respective second color filter, and a plurality of patterned spacers between the first and second substrates, each of the patterned spacers overlaps with a respective step-portion of the black matrix.
摘要:
A refrigerator includes a valve assembly located at a refrigerant path from a condenser to at least one expansion valve for controlling flow of a refrigerant from the condenser to the at least one expansion valve. The valve assembly includes a valve chamber, wherein the refrigerant drawn from the condenser is held in the valve chamber; at least one outlet hole through which the refrigerant held in the valve chamber is discharged to a corresponding outlet path connected to the at least one expansion valve; and a valve body for selectively opening and closing the at least one outlet hole as the valve body rotates, such that the refrigerant held in the valve chamber is selectively discharged to the corresponding outlet path.
摘要:
The present invention relates to an image signal transmission method in a network camera system, and more particularly, to a network camera system and an image signal transmission method in which a low resolution image formed by down-scaling a high resolution image photographed by a high resolution camera is displayed via a display means of a DVR system, and the high resolution image is compressed to be stored in a memory means of the DVR system, thereby preventing overload on the system that may occur due to compressing, transmitting, or decompressing a plurality of high resolution image signals. The network camera system including: a high resolution image photographing unit photographing an object to generate a high resolution image signal; an A/D converter converting the high resolution image signal into a digital image signal; an image signal compression unit receiving the digital image signals from the A/D conversion unit and generating a first image signal by compressing the digital image signal in high resolution; a network interface unit connected to a predetermined network cable, for transmitting the first image signal to a predetermined DVR system connected by the network cable; a down-scaling unit receiving the digital image signal from the A/D conversion unit and generating a second image signal by down-scaling the digital image signal; an image signal encoding unit converting the second image signal into an analog signal to be encoded to a second analog image signal; and an interface unit transmitting the first image signal and the second analog image signal to the DVR system.
摘要:
Provided is a micro-mechanical structure and method for manufacturing the same, including a hydrophilic surface on at least a part of a surface of the micro-mechanical structure, so as to prevent generation of an adhesion phenomenon in the process of removing a sacrificial layer to release the micro-mechanical, wherein the sacrificial layer comes into contact with the surface of the micro-mechanical structure.
摘要:
A drum washing machine, in which scale deposited in a steam generating device installed for improving sterilizing and washing capacities is efficiently eliminated. The drum washing machine includes a housing; a tub for containing washing water; a drum rotatably installed in the tub; and a steam generating device installed in the housing for supplying steam for sterilizing laundry to the drum, wherein a scale eliminating unit is installed in a water supply channel of the steam generating device, and includes at least one protrusion formed on the inner circumferential surface of the water supply channel or a water supply valve and a pulsation circuit for controlling the flow rate and amount of the water. The scale eliminating unit forms turbulence in the steam generating device or supplies water having varied flow rate and amount to the steam generating device, thereby efficiently eliminating scale deposited in the steam generating device.
摘要:
Provided is a micro-electromechanical systems switch for controlling signal delivery in a high frequency band wireless communication and a radio frequency (RF) system and, comprising: a substrate; a signal line formed on the substrate and having a predetermined opening portion; at least one supporting frame each formed on the substrate at both sides of the signal line; a ground line formed on the substrate between the supporting frame and the signal line; a moving plate fixed to the supporting frame at both sides thereof, the moving plate being movable upward and downward; a switching unit positioned on the moving plate, the switching unit comprising contact means for connecting the opened signal line; and a supporting layer for supporting the moving plate and the switching unit, wherein the supporting layer comprises a support protrusion portion for maintaining a distance from the substrate.
摘要:
Refrigerating system for a refrigerator including a compressor for compressing refrigerant, a condenser connected to the compressor for condensing compressed refrigerant, an expansion valve connected to the condenser for expanding condensed refrigerant, freezing chamber, and refrigerating chamber evaporators connected to the expansion valve for cooing air in a freezing chamber and a refrigerating chamber by using refrigerant respectively, and a regulating valve between the condenser and the refrigerating chamber evaporator for regulating refrigerant supply to the refrigerating chamber evaporator, thereby providing a refrigerating system for a refrigerator having high efficiency.
摘要:
A drum-type washing machine including a housing, a water tub installed in the housing to contain wash water, a rotating tub rotatably installed in the water tub to rotate upon receiving a rotating force via a rotating shaft, a stator fixedly mounted to the water tub having an annular shape to allow the rotating shaft to penetrate therethrough, and a rotor mounted to the rotating shaft to rotate along with the rotating tub by interaction with the stator. The rotor has protrusions at an outer end thereof with protrusions having a predetermined height, and the protrusions being formed with communication holes communicating the inside and outside of the rotor with each other.
摘要:
A cathode structure of a field emission device includes a gate electrode that is protected by a passivation layer. In one method for manufacturing such a field emission device, an emitter hole is formed through an insulating layer such that the passivation layer overhangs the gate layer, which overhangs an insulating layer. When used in a display system, the gate layer is exposed to an emitter electrode but shielded from an anode.