Abstract:
There is provided a fluoride phosphor composite including: fluoride phosphor core particles that may be expressed by the empirical formula AxMFy:Mn4+, wherein A may be at least one selected from the group consisting of Li, Na, K, Rb, and Cs, M may be at least one selected from the group consisting of Si, Ti, Zr, Hf, Ge, and Sn, the composition ratio (x) of A may satisfy 2≦x≦3, the composition ratio (y) of F may satisfy 4≦y≦7, each fluoride phosphor composite particle may be coated with a Mn-free fluoride coating. The Mn-free fluoride coating may have a thickness less than or equal to 35% of the size of each fluoride phosphor composite particle.
Abstract:
A method of controlling a touch panel display device, and which includes displaying a first display screen on the display device; receiving, via a controller of the touch panel display device and a touching signal indicating a touching action at a specific point on the first display screen; magnifying, via the controller, a predetermined area surrounding the specific point on the first display screen; displaying a second display screen including the magnified predetermined area with the specific point located at a center of the magnified predetermined area; receiving, via the controller, a selection signal indicating a selection of release touch icon displayed on the display device; and displaying the first display screen in response to the received selection signal.
Abstract:
There is provided an apparatus for the anti-islanding of a power conditioning system. The apparatus for the anti-islanding of a power conditioning system according to the present invention is applied to a power conditioning system including a DC/DC converter and a DC/AC inverter in order to transfer power from a solar cell array to a grid. The apparatus for the anti-islanding of a power conditioning system may include an injection signal generator generating an injection signal, an adder generating a final fundamental wave command value, a main controller performing the power control according to the final fundamental wave command value and stopping the operation of the power conditioning system when the level of the detected injection signal has reached the predetermined reference level or more, and an injection signal detector detecting the injection signal included in voltage and providing them to the main controller.
Abstract:
A spiral staircase shaped stacked semiconductor package is presented. The package includes a semiconductor chip module, a substrate and connection members. The semiconductor chip module includes at least two semiconductor chips which have chip selection pads and through-electrodes. The semiconductor chips are stacked such that the chip selection pads are exposed and the through-electrodes of the stacked semiconductor chips are electrically connected to one another. The substrate has the semiconductor chip module mounted thereto and has connection pads. The connection members electrically connect the chip selection pads to respective connection pads.
Abstract:
Disclosed is a rigid-flexible circuit board, which includes a rigid region and a flexible region, the rigid region including a flexible substrate having a first circuit layer on both surfaces thereof, a metal core substrate formed on the flexible substrate and having a second circuit layer on both surfaces thereof, and an adhesive layer disposed between the flexible substrate and the metal core substrate, wherein the metal core substrate includes a metal core having a through hole, and an insulating layer formed on a surface of the metal core, so that the rigid region and the flexible region are thermally separated from each other and heat dissipation properties of the rigid region are improved. A method of manufacturing the rigid-flexible circuit board is also provided.
Abstract:
A method and apparatus for producing a composite solid surface article are disclosed. The method includes feeding a first composition toward a mixing point and feeding solid particles toward the mixing point. The method further includes mixing at the mixing point the first composition and the solid particles fed to the mixing point to form a second composition, and transferring the second composition away from the mixing point. The method further comprises polymerizing the polymerizable compound in the second compound so as to form a curable composition comprising the solid particles. The apparatus includes a solid particle feeder, a slurry feeder and a blender configured to blend and transfer a mixture of the solid surface forming slurry and solid particles away from the blending area. The composite solid surface article produced using the method and apparatus contain particles with a size greater than 5 mm.
Abstract:
There are provided a multi-level converter capable of outputting power having various voltage levels with respect to a single input power supply by using a simple circuit, an inverter having the same, and a solar power supply apparatus having the same. The multi-level converter includes a first buck-boost unit having a first power switch switching an input power supply and outputting a first power having a voltage level varied according to switching of the first power switch; a bypass unit outputting a second power having a voltage level of the input power supply; and a second buck-boost unit having a second power switch switching the input power supply and outputting a third power having a voltage level varied according to switching of the second power switch.
Abstract:
A liquid crystal display including a first substrate; a second substrate facing the first substrate; a thin film transistor disposed on the first substrate; an organic layer disposed on the thin film transistor; a pixel electrode disposed on the organic layer; a lower alignment layer disposed on the pixel electrode; a common electrode disposed on the second substrate; and an upper alignment layer disposed on the common electrode, wherein a first free radical included in the organic layer and a second free radical included in at least one of the lower alignment layer and the upper alignment layer are radical bonded.
Abstract:
There is provided an even-level inverter, including: a voltage-dividing circuit dividing input DC power into an even number of voltage levels; a plurality of switching devices connected to individual nodes of the voltage-dividing circuit having the even number of voltage levels; and a bidirectional switching device connected to the individual nodes of the voltage-dividing circuit through at least one of the plurality of switching devices and including at least two transistors. According to the present invention, the bidirectional switching device is implemented without a diode to thereby reduce conduction loss caused due to an anti-parallel diode included in the related art bidirectional switching device, and a neutral point of the voltage-dividing circuit is electrically separated from the switching devices to thereby control reactive power.
Abstract:
A semiconductor device with OTP memory cell includes a first switching unit for transferring a first bias voltage, a first MOS transistor having a first gate coupled to a first gate signal and a first terminal coupled to the first bias voltage by the first switching unit, and a second switching unit for coupling a second terminal of the first MOS transistor to a first bit line.