摘要:
The present invention relates to a Switching Mode Power Supply (SMPS) and a driving method thereof. To this end, the present invention provides a SMPS, which is driven in either a Continuous Conduction Mode (CCM) or Discontinuous Conduction Mode (DCM) in accordance with a determination of a time when a voltage between a first stage and a second stage of the switching transistor is resonated. In accordance with the present invention, the SMPS of a quasi-resonant switching mode can be driven with high efficiency regardless of a signal level of an input voltage and the amount of an output terminal load.
摘要:
The present invention relates to a switch control circuit, a power factor corrector including the same, and a driving method thereof. According to an exemplary embodiment of the present invention, a turn-on time of a power switch is controlled according to a zero crossing voltage to sense a voltage of both terminals of the power switch, and a turn-off time of the power switch is controlled according to a feedback voltage corresponding to the output voltage. At this time, the switching frequency of the power switch is sensed by the zero crossing voltage and the switching frequency is restricted by a predetermined threshold frequency.
摘要:
A display that contains a column spacer arrangement which takes advantage of a protrusion on a TFT substrate is provided. One set of column spacers is disposed on top of the protrusion, while a second set of column spacers of substantially the same height as the first set of column spacers are disposed throughout the display. In this way, the display is adequately protected against deformation from external forces while at the same maintaining enough room to allow for a liquid crystal to spread out during the manufacturing process.
摘要:
Display ground plane structures may contain slits. Image pixel electrodes in the display may be arranged in rows and columns. Image pixels in the display may be controlled using gate lines that are associated with the rows and data lines that are associated with the columns. An electric field may be produced by each image pixel electrode that extends through a liquid crystal layer to an associated portion of the ground plane. The slits in the ground plane may have a slit width. Data lines may be located sufficiently below the ground plane and sufficiently out of alignment with the slits to minimize crosstalk from parasitic electric fields. A three-column inversion scheme may be used when driving data line signals into the display, so that pairs of pixels that straddle the slits are each driven with a common polarity. Gate line scanning patterns may be used that enhance display uniformity.
摘要:
The present invention provides a method for producing customized pluripotent stem cells. Specifically, the present invention comprises following steps: extracting proteins from any of the dedifferentiated stem cells or induced pluripotent stem cells, the said dedifferentiated or pluripotent stem cells being prepared by any known method; introducing the protein extract into the adult somatic cells; and culturing the adult somatic cells to produce pluripotent stem cells having the same pluripotency as that of embryonic stem cells. In addition, pluripotent stem cells produced according to the present method and cell therapeutics comprising the same are provided. The method allows pluripotent stem cells to be produced very easily and at a significantly higher yield, compared to typical methods.
摘要:
In a foreign materials filtering apparatus and a washing machine having the same, a filter cover is installed at a washing water circulating duct disposed inside a washing tub, and a net filter is installed at an inner side of the filter cover. Accordingly, the net filter is prevented from directly contacting laundry, thereby preventing the not filter and the laundry from being damaged. Furthermore, since the net filter is covered by the filter cover, the entire appearance is enhanced. Additionally, when the net filter is mounted at the filter cover, the filter unit becomes modularized to be facilitate a detachable mounting.
摘要:
Disclosed is a thin film transistor substrate and a system for inspecting the same. The thin film transistor substrate comprises gate wiring formed on an insulation substrate and including gate lines, and gate electrodes and gate pads connected to the gate lines; a gate insulation layer covering the gate wiring; a semiconductor layer formed over the gate insulation layer; data wiring formed over the gate insulation layer and including data pads; a protection layer covering the data wiring; auxiliary pads connected to the data pads through contact holes formed in the protection layer; and a pad auxiliary layer formed protruding a predetermined height under the data pads. The inspection system for determining whether a thin film transistor substrate is defective, in which the thin film transistor substrate comprises gate wiring including gate lines, gate electrodes and gate pads, and data wiring including source electrodes and drain electrodes, includes a probe pin for contacting the gate pads or data pads and transmitting a corresponding signal, wherein a contact tip at a distal end of the probe pin for contacting the gate pads or the data pads is rounded, and a radius of the rounded contact tip is 2 μm or less, or the rounded contact tip is coated with gold (Au).
摘要:
A method of making a bonded intermediate substrate includes forming a weak interface in a GaN source substrate by implanting ions into an N-terminated surface of the GaN source substrate, bonding the N-terminated surface of the GaN source substrate to a handle substrate, and exfoliating a thin GaN single crystal layer from the source substrate such that the thin GaN exfoliated single crystal layer remains bonded to the handle substrate and a Ga-terminated surface of the thin GaN single crystal layer is exposed. The method further includes depositing a capping layer directly onto the exposed surface of the thin GaN single crystal layer, and annealing the thin GaN single crystal layer in a nitrogen containing atmosphere after depositing the capping layer. The in-plane strain present in the thin GaN single crystal layer after the annealing is reduced relative to an in-plane strain present in said layer prior to the annealing.
摘要:
Disclosed is a thin film transistor substrate and a system for inspecting the same. The thin film transistor substrate comprises gate wiring formed on an insulation substrate and including gate lines, and gate electrodes and gate pads connected to the gate lines; a gate insulation layer covering the gate wiring; a semiconductor layer formed over the gate insulation layer; data wiring formed over the gate insulation layer and including data pads; a protection layer covering the data wiring; auxiliary pads connected to the data pads through contact holes formed in the protection layer; and a pad auxiliary layer formed protruding a predetermined height under the data pads. The inspection system for determining whether a thin film transistor substrate is defective, in which the thin film transistor substrate comprises gate wiring including gate lines, gate electrodes and gate pads, and data wiring including source electrodes and drain electrodes, includes a probe pin for contacting the gate pads or data pads and transmitting a corresponding signal, wherein a contact tip at a distal end of the probe pin for contacting the gate pads or the data pads is rounded, and a radius of the rounded contact tip is 2 μm or less, or the rounded contact tip is coated with gold (Au).
摘要:
Apparatuses and methods for providing an emergency service in a wireless communication system are provided. The method includes allocating a Connection IDentifier (CID) used to transmit the emergency service message, determining a Convergence Sublayer (CS) type for processing the emergency service message, generating a Downlink Channel Descriptor (DCD) message which comprises at least one of the allocated CID and information relating to the determined CS type, and transmitting the generated DCD message to a Mobile Station (MS).