Abstract: Provided are a selective recovery method of vanadium and cesium from a waste sulfuric acid vanadium catalyst by a hydrometallurgical method including water leaching, solid-liquid separation, vanadium solvent extraction, vanadium selective stripping, and cesium alum production, and a high-quality vanadium aqueous solution and cesium alum produced thereby.

Abstract: A polyhedron type display device includes: a plurality of liquid crystal panels connected to each other to constitute a polyhedral shape; a light source housing at a center of mass of the polyhedral shape; a light source unit accommodated in the light source housing, the light source unit emitting a light to supply the light to the plurality of liquid crystal panels; a light source supporting pillar connecting and supporting the light source housing and the plurality of liquid crystal panels; a structure supporting pedestal supporting the light source supporting pillar; a supporting panel supporting the plurality of liquid crystal panels; a radiating pillar connected to the light source unit and emitting a heat of the light source unit; and a protecting cover covering and protecting the radiating pillar.

Abstract: Semiconductor devices are provided. A semiconductor device includes a channel region that protrudes from a substrate. The semiconductor device includes a gate line on the channel region. Moreover, the semiconductor device includes a gate isolation layer that is between a first portion of the gate line and a second portion of the gate line. The gate isolation layer is in contact with the gate line and includes a gap that is in the gate isolation layer. Related methods of manufacturing a semiconductor device are also provided.

Abstract: A semiconductor device with improved product reliability and a method of fabricating the semiconductor are provided. The semiconductor device includes a substrate, a gate electrode on the substrate, a first spacer on a sidewall of the gate electrode, a conductive contact on a sidewall of the first spacer to protrude beyond a top surface of the gate electrode, a trench defined by the top surface of the gate electrode, a top surface of the first spacer, and sidewalls of the contact, an etching stop layer extending along at least parts of sidewalls of the trench and a bottom surface of the trench, and a capping pattern on the etching stop layer to fill the trench, wherein the capping pattern includes silicon oxide or a low-k material having a lower permittivity than silicon oxide.

Abstract: A deformed liquid crystal display device including a cover bottom; a backlight unit on the cover bottom; the backlight unit including: a LED assembly including a plurality of LEDs; a reflector comprising a bottom surface, and side portions bent upward from edges of the bottom surface; a diffuser, disposed above and spaced apart from the plurality of LEDs and the bottom surface of the reflector; a liquid crystal panel disposed on the backlight unit, wherein the reflector has at least one corner having an acute angle formed by two adjacent side portions, wherein a brightness enhancing portion is disposed at the corner having the acute angle.

Abstract: A method of manufacturing a semiconductor device may include forming a sacrificial layer on a substrate including a first region and a second region, forming a first pattern on the sacrificial layer of the second region, forming a second pattern on the sacrificial layer of the first region, forming first upper spacers on opposite sidewalls of the second pattern, removing the second pattern, etching the first sacrificial layer of the first region using the first upper spacers as an etch mask to form a third pattern, etching the first sacrificial layer of the second region using the first pattern as an etch mask to form a fourth pattern, forming first lower spacers at either side of the third pattern, forming second spacers on opposite sidewalls of the fourth pattern, removing the third pattern and the fourth pattern, and etching the substrate using the first lower spacers and the second spacers as etch masks.

Abstract: Semiconductor devices are provided. A semiconductor device includes a channel region that protrudes from a substrate. The semiconductor device includes a gate line on the channel region. Moreover, the semiconductor device includes a gate isolation layer that is between a first portion of the gate line and a second portion of the gate line. The gate isolation layer is in contact with the gate line and includes a gap that is in the gate isolation layer. Related methods of manufacturing a semiconductor device are also provided.

Abstract: A semiconductor device with improved product reliability and a method of fabricating the semiconductor are provided. The semiconductor device includes a substrate, a gate electrode on the substrate, a first spacer on a sidewall of the gate electrode, a conductive contact on a sidewall of the first spacer to protrude beyond a top surface of the gate electrode, a trench defined by the top surface of the gate electrode, a top surface of the first spacer, and sidewalls of the contact, an etching stop layer extending along at least parts of sidewalls of the trench and a bottom surface of the trench, and a capping pattern on the etching stop layer to fill the trench, wherein the capping pattern includes silicon oxide or a low-k material having a lower permittivity than silicon oxide.

Abstract: A polyhedron type display device includes: a plurality of liquid crystal panels connected to each other to constitute a polyhedral shape; a light source housing at a center of mass of the polyhedral shape; a light source unit accommodated in the light source housing, the light source unit emitting a light to supply the light to the plurality of liquid crystal panels; a light source supporting pillar connecting and supporting the light source housing and the plurality of liquid crystal panels; a structure supporting pedestal supporting the light source supporting pillar; a supporting panel supporting the plurality of liquid crystal panels; a radiating pillar connected to the light source unit and emitting a heat of the light source unit; and a protecting cover covering and protecting the radiating pillar.

Abstract: The present disclosure relates to a display device where unit liquid crystal display devices are easily assembled for a volumetric display or a multi display by applying a chamfer structure to a side surface portion of the unit liquid crystal display device. The display device includes a plurality of unit liquid crystal display devices, each having a liquid crystal panel, a backlight unit under the liquid crystal panel, a top frame over the liquid crystal display panel, and a main frame surrounding a side surface of the backlight unit. The liquid crystal panel is one the main frame. Additionally, at least one side surface portion of each of the plurality of unit liquid crystal display devices has a chamfer structure.

Abstract: A deformed liquid crystal display device including a cover bottom; a backlight unit on the cover bottom; the backlight unit including: a LED assembly including a plurality of LEDs; a reflector comprising a bottom surface, and side portions bent upward from edges of the bottom surface; a diffuser, disposed above and spaced apart from the plurality of LEDs and the bottom surface of the reflector; a liquid crystal panel disposed on the backlight unit, wherein the reflector has at least one corner having an acute angle formed by two adjacent side portions, wherein a brightness enhancing portion is disposed at the corner having the acute angle.

Abstract: Provided are service providing apparatus and method for supporting creation of a route, and more particularly, to service providing apparatus and method for supporting creation of a route which supports creation of a personal route for only a user by selecting a transportation up to a destination and positions for getting on and off. According to the present invention, it is possible to ensure expandability of route provision by supporting an optimal route which is known by a user to be directly created by the user when there is no user's desired route among recommended routes, providing the created personalized route together with the recommended route to support the personalized route to be guided as the optimal route, and simultaneously, providing various routes using the public transportation.

Abstract: The present disclosure relates to a display device where unit liquid crystal display devices are easily assembled for a volumetric display or a multi display by applying a chamfer structure to a side surface portion of the unit liquid crystal display device. The display device includes a plurality of unit liquid crystal display devices, each having a liquid crystal panel, a backlight unit under the liquid crystal panel, a top frame over the liquid crystal display panel, and a main frame surrounding a side surface of the backlight unit. The liquid crystal panel is one the main frame. Additionally, at least one side surface portion of each of the plurality of unit liquid crystal display devices has a chamfer structure.

Abstract: An edge detector includes a differential signal generator, a sense amplifier and a latch. The differential signal generator delays an input signal to generate a first differential signal and inverts the input signal to generate a second differential signal. The sense amplifier amplifies a difference between the first differential signal and the second differential signal to generate a first amplification signal and a second amplification signal at a first edge of a test clock signal and resets the first amplification signal and the second amplification signal at a second edge of the test clock signal. The latch generates an edge signal corresponding to edge information of the input signal in response to the first amplification signal and the second amplification signal.

Abstract: An edge detector includes a differential signal generator, a sense amplifier and a latch. The differential signal generator delays an input signal to generate a first differential signal and inverts the input signal to generate a second differential signal. The sense amplifier amplifies a difference between the first differential signal and the second differential signal to generate a first amplification signal and a second amplification signal at a first edge of a test clock signal and resets the first amplification signal and the second amplification signal at a second edge of the test clock signal. The latch generates an edge signal corresponding to edge information of the input signal in response to the first amplification signal and the second amplification signal.

Abstract: A method for displaying menu items and a terminal for implementing the same are disclosed to improve user convenience. The terminal includes: a display unit; a controller for displaying arbitrary menu items on the display unit such that menu items at a particular position are differentiated from menu items at a different position, and a user input unit for selectively rearranging the position of the menu items by a user.

Abstract: A method for fabricating a semiconductor device is provided, which includes forming a first mask pattern and a second mask pattern on a first layer, forming a block mask that covers the second mask pattern on the first layer, forming first spacers on side walls of the first mask pattern, exposing the second mask pattern through removal of the first mask pattern and the block mask, forming a third mask pattern and a fourth mask pattern through etching of the first layer using the first spacers and the second mask pattern as etch masks, and forming second spacers and third spacers on side walls of the third mask pattern and side walls of the fourth mask pattern, respectively.

Abstract: A display system comprising a user terminal apparatus configured to transmit a swimming image to a display apparatus, the display apparatus configured to reproduce the swimming image received from the user terminal apparatus, and a sensing apparatus configured to sense, while the user is swimming, user location information in real time, and transmit the sensed user location information to the user terminal apparatus or the display apparatus. The user terminal apparatus or the display apparatus displays swimming information of the user based on the received user location information.

Abstract: A method for fabricating a semiconductor device is provided, which includes forming a first mask pattern and a second mask pattern on a first layer, forming a block mask that covers the second mask pattern on the first layer, forming first spacers on side walls of the first mask pattern, exposing the second mask pattern through removal of the first mask pattern and the block mask, forming a third mask pattern and a fourth mask pattern through etching of the first layer using the first spacers and the second mask pattern as etch masks, and forming second spacers and third spacers on side walls of the third mask pattern and side walls of the fourth mask pattern, respectively.

Abstract: A method of manufacturing a semiconductor device may include forming a sacrificial layer on a substrate including a first region and a second region, forming a first pattern on the sacrificial layer of the second region, forming a second pattern on the sacrificial layer of the first region, forming first upper spacers on opposite sidewalls of the second pattern, removing the second pattern, etching the first sacrificial layer of the first region using the first upper spacers as an etch mask to form a third pattern, etching the first sacrificial layer of the second region using the first pattern as an etch mask to form a fourth pattern, forming first lower spacers at either side of the third pattern, forming second spacers on opposite sidewalls of the fourth pattern, removing the third pattern and the fourth pattern, and etching the substrate using the first lower spacers and the second spacers as etch masks.