Abstract: A data driver including a power control part configured to control power according to mode signal determined based on an input image, a digital to analog converting part configured to convert a digital data signal into an analog data voltage, a buffering part configured to buffer the data voltage, a first switching part configured to apply the data voltage to a data line in a normal mode, when turned on, and a second switching part configured to apply a blank voltage to the data line in a blank period of a low frequency mode, when turned on.

Abstract: A video wall system for displaying a video wall image is provided. The video wall system includes a plurality of display apparatuses configured to display a video wall image, and each of the plurality of display apparatuses includes a signal processor, a display and a controller. The signal processor is configured to process an image signal of a video wall image. The display scans in one of a first scanning direction and a second scanning direction opposite the first scanning direction based on the processed image signal to display an individual image split from the video wall image. The controller controls the display to scan in one of the first scanning direction and the second scanning direction determined based on a scanning direction of an adjacent other display apparatus. With this, the video wall system may display the video wall image without generating steps caused by differences in screen playing speed between adjacent display apparatuses.

Abstract: In a localized torsional severe plastic deformation method for conical tube metal, a desired region of a conical tube metal can be subjected to severe plastic deformation using molds in which roughness is formed at predetermined regions. The method includes roughening a predetermined region of each of the molds; sticking the conical tube metal only to the roughened regions of the molds; moving the lower mold toward the upper mold to apply a load to the conical tube metal; and rotating the molds to apply severe plastic deformation to the conical tube metal only at the regions stuck to the roughened regions of the molds.

Abstract: A video wall system is provided. The video wall system includes a first display apparatus and a second display apparatus. The first display apparatus displays a first individual image which corresponds to a first area of a first video wall image, and transmits the first video wall image to the second display apparatus; and, in response to an execution condition for anti-screen burn operation being satisfied while the first individual image is displayed, generates a second video wall image by changing the first video wall image, displays a second individual image which corresponds to the first area of the generated second video wall image, and transmits the generated second video wall image to the second display apparatus. The second display apparatus displays a third individual image which corresponds to a second area of one video wall image of the first video wall image and the second video wall image received from the first display apparatus, wherein the second area is different from the first area.

Abstract: The present invention relates to: a porous polymer material having a porous structure over the entire polymer and having a dense porous structure in which pores are connected to each other therein. The porous polymer material is harmless to the human body as it does not use toxic organic solvents. In addition, a porous polymer material can be prepared without using any additives for forming pores and the particle size can be easily controlled, and thus a polymer material suitable for various uses can be prepared. Furthermore, the extended release of a loaded bioactive material is possible only by the dense porous structure of a polymer itself without using an additive and a surface modification method in the porous polymer material of the present invention. Therefore, the porous polymer material can be applied to a biodegradable material in various bio-fields requiring the extended release of a bioactive material.

Abstract: A method of driving a display panel includes dividing an input image into a plurality of segments; generating flicker levels of respective ones of the segments; determining a frame rate of the display panel based on the flicker levels of the segments; and outputting a data voltage to the display panel at the frame rate.

Abstract: A display device configured to communicate with at least one other display device connected to a network is disclosed. The display device includes communication circuitry configured to receive unique information and a service set identifier (SSID) from each of the at least one other display device, the unique information for use in identification of each of the at least one other display device, and a controller configured to change an SSID based on a comparison between unique information of the display device and at least one piece of the received unique information.

Abstract: A liquid crystal display includes: a display panel; a signal controller configured to receive an input image signal and an input control signal, output an output image signal and an output control signal, and determine a charge sharing between two or more data lines having voltages in the same polarity; and a data driver configured to convert, based on the output control signal, the image signal into data voltages to be supplied to the data lines connected to the pixels, the data voltages having positive levels and negative levels. The data driver is further configured to perform a first charge sharing by short-circuiting first and second data lines that are adjacent to each other, and a second charge sharing by short-circuiting third and fourth data lines having data voltages in the same polarity, wherein the first charge sharing and the second charge sharing may not temporally overlap with each other.

Abstract: A bundled optical fiber probe according to an embodiment of the present invention includes: a forward irradiation unit including a forward irradiation optical fiber disposed at the center thereof, the forward irradiation optical fiber having a flat end surface; and a side irradiation unit including a side irradiation optical fiber disposed at the periphery of the forward irradiation unit, the side irradiation optical fiber having an inclined end surface to laterally reflect a laser beam, wherein the forward irradiation unit and the side irradiation unit can be formed as a single bundle.

Abstract: A liquid crystal display includes: a display panel including data lines, scan lines and a plurality of pixels connected to the data lines and the scan lines; a scan driver configured to supply scan signals to the scan lines; a data driver configured to supply data voltages to the data lines; and a timing controller configured to control operation timings of the scan driver and the data driver, where the timing controller is configured to output a plurality of scan output enable signals to the scan driver, and the scan driver is configured to supply odd scan signals to odd scan lines based on a first scan output enable signal of the scan output enable signals and to supply even scan signals to even scan lines based on a second scan output enable signal of the scan output enable signals.

Abstract: An apparatus for testing and developing products of network computing based on an open-source virtualized cloud includes a physical space, a network function virtualization (NFV) infrastructure domain space that provides a virtualization function in an independent environment of each user; an NFV engine space that provides a processing based environment for virtual appliances which are units of a virtual network device that is individually operable, a framework space that provides support to allow the virtual appliances to be developed and registered, and a virtual network service space that provides a user interface interoperating with the framework space so that a user configures a virtual network through the user interface and a test function of the configured virtual network is supported.

Abstract: A method of driving a display panel includes generating a first driving period having a first driving frequency, generating a second driving period having a second driving frequency, and inserting a compensating frame between the first driving period and the second driving period. A display apparatus includes a display panel configured to display an image, and a display panel driver configured to generate a first driving period having a first driving frequency, to generate a second driving period having a second driving frequency, and to insert a compensating frame between the first driving period and the second driving period.

Abstract: Provided is a method of improving a bandwidth of an antenna using a transmission line stub to enable long-range communication together with broadband matching. According to the method, it is possible to combine a transmission line stub in series or parallel with a feeding point, which is an antenna signal input/output point of a body serving as an antenna, and apply the transmission line stub to an antenna for wide use.

Abstract: There are provided a function processing apparatus and function processing method dynamically process network function using commands. A function processing apparatus includes a communication unit for performing communication with at least one user interface and at least one software component, and a controller for, if first command related information is received from the at least one software component, forming a command tree on the basis of the first command related information and transmitting the first command related information to the at least one user interface, and, if second command related information is received from at least one user interface, transmitting the second command related information to a software component corresponding to the second command related information.

Abstract: The present invention relates to a method and a process of preparing precipitated calcium carbonate of high purity by extracting calcium ion contained in an alkali ion-containing inorganic material such as mineral, steelmaking slag and waste concrete with the use of an acidic aqueous solution, separating other metal ions from the extracted solution, preparing an alkaline earth metal hydroxide using an alkaline aqueous solution and then contacting the same with carbon dioxide.

Abstract: Provided is a small switchable directional control antenna that can perform direction control according to shapes and sizes of various devices. The antenna includes a dielectric layer, a radiation patch formed on a side of the dielectric layer, a ground plane formed on a side of the dielectric layer opposite to the side on which the radiation patch is formed and configured to have a plurality of slots formed at edges thereof, and a control module insulated from the ground plane and configured to control electrical connection between the radiation patch and the ground plane.

Abstract: A method of driving a display panel and display device including the same are disclosed. In one aspect, the method comprises providing input image data, generating a gamma reference voltage, generating a data voltage based on the gamma reference voltage and input image data, providing the data voltage to the display panel, and determining whether the input image data represents a still image or a video image. The method further comprises substantially periodically and alternately generating first and second common voltages when the input image data represents the still image, and providing the first and second common voltages to the display panel.

Abstract: A method of driving a display panel includes generating a first driving period having a first driving frequency, generating a second driving period having a second driving frequency, and inserting a compensating frame between the first driving period and the second driving period. A display apparatus includes a display panel configured to display an image, and a display panel driver configured to generate a first driving period having a first driving frequency, to generate a second driving period having a second driving frequency, and to insert a compensating frame between the first driving period and the second driving period.

Abstract: A power amplifier having a stack structure comprises a first driver stage that receives a power voltage from a power supply and receives and amplifies an input signal; a second driver stage that receives the power voltage from the power supply, has an input terminal connected with an output terminal of the first driver stage, and receives and amplifies an output signal from the first driver stage; and a power stage that has a power input terminal connected with a ground terminal of the first driver stage and a ground terminal of the second driver stage and receives a virtual ground voltage, and has an input terminal connected with an output terminal of the second driver stage and receives and amplifies an output signal from the second driver stage.

Abstract: Disclosed is a manhole type omnidirectional antenna having a relatively small angle between a main beam direction and the Earth's surface and exhibiting omnidirectional characteristics to allow long-range communication, wherein the manhole type omnidirectional antenna includes a manhole cover installed in a manhole in the Earth's surface; a main body installed in a cavity of an upper surface of the manhole cover and configured to convert an electrical signal into an electromagnetic wave to wirelessly communicate with a gateway separated from the manhole cover; and a radome inserted into the cavity to cover the main body.