Abstract: A method of forming a metal pattern includes disposing a gate metal layer on a substrate; disposing a photoresist layer on the gate metal layer; etching portions of the photoresist layer to form a first photo pattern; etching portions of the gate metal layer to form a gate pattern including a gate electrode, in which the gate metal layer is patterned using the first photo pattern as a mask; ashing an end portion of the first photo pattern to form a second photo pattern; disposing a first gate insulating layer over the substrate and the second photo pattern; removing the second photo pattern and a portion of the first gate insulating layer disposed over the second photo pattern; and disposing a second insulating layer over the gate pattern and the remaining portions of the first gate insulating layer.

Abstract: A method of forming a metal pattern includes disposing a gate metal layer on a substrate; disposing a photoresist layer on the gate metal layer; etching portions of the photoresist layer to form a first photo pattern; etching portions of the gate metal layer to form a gate pattern including a gate electrode, in which the gate metal layer is patterned using the first photo pattern as a mask; ashing an end portion of the first photo pattern to form a second photo pattern; disposing a first gate insulating layer over the substrate and the second photo pattern; removing the second photo pattern and a portion of the first gate insulating layer disposed over the second photo pattern; and disposing a second insulating layer over the gate pattern and the remaining portions of the first gate insulating layer.

Abstract: Disclosed is a light emitting lamp including a light source module including at least one light source and a light guide layer disposed on a substrate burying the at least one light source, and a housing accommodating the light source module, and the at least one light source includes a body having a cavity, a first lead frame including one end exposed to the cavity and the other end passing through the body and exposed to one surface of the body, a second lead frame including one end exposed to one portion of the surface of the body, the other end exposed to the another portion of the surface of the body, and an intermediate part exposed to the cavity, and at least one light emitting chip including a first semiconductor layer, an active layer and a second semiconductor layer, and disposed on the first lead frame.

Abstract: An etchant composition includes ammonium persulfate (((NH4)2)S2O8), an azole-based compound, a water-soluble amine compound, a sulfonic acid-containing compound, a nitrate-containing compound, a phosphate-containing compound, a chloride-containing compound, and residual water.

Abstract: One embodiment comprises first and second light-emitting chips, each comprising: a package body having a cavity; first to fourth lead frames disposed inside the package body; a first semiconductor layer; an active layer; and a second semiconductor layer and emitting light of a different wavelength from each other, wherein each of the first to fourth lead frames comprises: an upper surface part exposed to the cavity; and a side surface part bent from one side portion of the upper surface part and exposed by one surface of the package body. In addition, the first light-emitting chip is disposed on the upper surface part of the first lead frame, and the second light-emitting chip is disposed on the upper surface part of the third lead frame.

Abstract: The disclosure provides a cleaning agent composition for a flat panel display device, including: polyaminocarboxylic acid; alkali base; a nonionic surfactant; and a fluoride component. The cleaning agent composition for the flat panel display device can effectively remove metal oxides and organic contaminants on the substrate without impairing a transparent conductive layer.

Abstract: A thin film transistor includes a gate electrode, an active pattern overlapping with the gate electrode and including a semiconductive oxide, and a source metal pattern disposed on the active pattern and including a source electrode and a drain electrode spaced apart from the source electrode. The active pattern underlaps an entire portion of a lower surface of the source metal pattern and minimally protrudes beyond lateral ends of the source metal pattern due to the active pattern having sidewall taper angles that are substantially greater than corresponding and adjacent sidewall taper angles of the overlying source metal pattern. Thus parasitic capacitance may be reduced and performance enhanced.

Abstract: An etchant composition includes ammonium persulfate (((NH4)2)S2O8), an azole-based compound, a water-soluble amine compound, a sulfonic acid-containing compound, a nitrate-containing compound, a phosphate-containing compound, a chloride-containing compound, and residual water.

Abstract: A liquid crystal display includes: a substrate; a gate line and a data line disposed on the substrate; a semiconductor layer disposed on the substrate; first and second field generating electrodes disposed on the substrate; and a first protecting layer formed from the same layer as the first field generating electrode and covering at least a portion of the data line.

Abstract: An etchant composition includes ammonium persulfate (((NH4)2)S2O8), an azole-based compound, a water-soluble amine compound, a sulfonic acid-containing compound, a nitrate-containing compound, a phosphate-containing compound, a chloride-containing compound, and residual water.

Abstract: Disclosed is a light emitting lamp including a light source module including at least one light source and a light guide layer disposed on a substrate burying the at least one light source, and a housing accommodating the light source module, and the at least one light source includes a body having a cavity, a first lead frame including one end exposed to the cavity and the other end passing through the body and exposed to one surface of the body, a second lead frame including one end exposed to one portion of the surface of the body, the other end exposed to the another portion of the surface of the body, and an intermediate part exposed to the cavity, and at least one light emitting chip including a first semiconductor layer, an active layer and a second semiconductor layer, and disposed on the first lead frame.

Abstract: A Multiple Input Multiple Output (MIMO) antenna system adaptable to an environmental multiplicity is provided. A MIMO antenna system includes a first antenna element, a second antenna element, a receiver for receiving at least one of different polarized signals through the first antenna element, a channel estimator for estimating a channel using a signal received via the receiver and a signal received via the second antenna element, and a correlation comparator for controlling the receiver to receive a specific polarized signal according to a correlation calculated from the estimated channel.

Abstract: An improved and more compact structure of a built-in antenna for handheld terminals, improving radiation pattern and efficiency. Provided is a planar inverted-F antenna having a radiation part having an inductive radiation portion and a parasitic radiation portion which are spaced in a certain distance apart from a ground surface, a power-supply part horizontally spaced apart from the ground surface and for directly supplying currents to the connected inductive radiation portion, and connection parts for connecting the radiation portions to the ground. The planar inverted-F antenna has an inductive antenna portion and a parasitic antenna portion, thereby reducing its volume compared to the conventional inverted-F antenna. Complicated manufacturing and processing procedures are simplified by connecting the power-supplying part and a PCB.

Abstract: An improved and more compact structure of a built-in antenna for handheld terminals, improving radiation pattern and efficiency. Provided is a planar inverted-F antenna having a radiation part having an inductive radiation portion and a parasitic radiation portion which are spaced in a certain distance apart from a ground surface, a power-supply part horizontally spaced apart from the ground surface and for directly supplying currents to the connected inductive radiation portion, and connection parts for connecting the radiation portions to the ground. The planar inverted-F antenna has an inductive antenna portion and a parasitic antenna portion, thereby reducing its volume compared to the conventional inverted-F antenna. Complicated manufacturing and processing procedures are simplified by connecting the power-supplying part and a PCB.

Abstract: An antenna having a parasitic element is disclosed, the antenna including a ground, a radiation unit which is arranged on a different area of the same plane as the ground, and a parasitic element which is selectively connected to the ground, and operates as an antenna element. Where the antenna is in a first mode, electromagnetic waves resonate in the radiation unit, and where the antenna is in a second mode, electromagnetic waves resonate in the radiation unit and the parasitic element.

Abstract: An improved and more compact structure of a built-in antenna for handheld terminals, improving radiation pattern and efficiency. Provided is a planar inverted-F antenna having a radiation part having an inductive radiation portion and a parasitic radiation portion which are spaced in a certain distance apart from a ground surface, a power-supply part horizontally spaced apart from the ground surface and for directly supplying currents to the connected inductive radiation portion, and connection parts for connecting the radiation portions to the ground. The planar inverted-F antenna has an inductive antenna portion and a parasitic antenna portion, thereby reducing its volume compared to the conventional inverted-F antenna. Complicated manufacturing and processing procedures are simplified by connecting the power-supplying part and a PCB.

Abstract: A monopole antenna having a matching function includes a ground; and a radiator having a first radiation part which is connected to a first side of the ground in a strip shape perpendicularly to the ground, and at least one second radiation part which is bent from a first end of the first radiation part at least once.

Abstract: A transmission line conversion apparatus connecting a parallel transmission line to a coplanar waveguide (CPW) is provided. To this end, the CPW including a transmission line composed of a signal line and a ground line which is formed on one surface of a dielectric substrate, and a parallel transmission line connected to the CPW, at a predetermined angle with respect to a substrate constituting the CPW, and composed of a signal line and a ground line, are proposed. In addition, the signal line of the CPW and the signal line of the parallel transmission line are connected to each other, and the ground line of the CPW and the ground line of the parallel transmission line are connected to each other. As such, by connecting the CPW to the parallel transmission line, a return loss can be minimized.

Abstract: An antenna having a parasitic element is disclosed, the antenna including a ground, a radiation unit which is arranged on a different area of the same plane as the ground, and a parasitic element which is selectively connected to the ground, and operates as an antenna element. Where the antenna is in a first mode, electromagnetic waves resonate in the radiation unit, and where the antenna is in a second mode, electromagnetic waves resonate in the radiation unit and the parasitic element.

Abstract: A plate board type MIMO (multiple-input multiple-output) array antenna including a board, a plurality of antenna elements manufactured on the board, and an isolation unit offsetting effects of electromagnetic waves radiated from the plurality of antenna elements on the other antenna elements of the plurality of antenna elements. In a case where two antenna elements are used, the isolation unit may include at least one isolation element positioned within a space between the two antenna elements on the board and symmetric with respect to a center of a distance between the two antenna elements.