Abstract: A built-in antenna device for an electronic device for communication is provided. The antenna device includes a substrate, an antenna radiator, and a transmission line. The substrate includes a grounding region and a non-grounding region. The antenna radiator is disposed in the non-grounding region of the substrate and fed from a feeding portion provided to the substrate. The transmission line branches from the antenna radiator and is disposed in vicinity of the grounding region to have a predetermined length and a predetermined width. The antenna device controls reactance by coupling the transmission line with the grounding region to allow the antenna radiator to operate in at least one desired band.

Abstract: An antenna according to an embodiment includes a substrate; a radiator; a ground plane spaced apart from the radiator; a feeding pin for feeding an RF signal; a first branch reactance at one side of the feeding pin, the first branch reactance including one end connected to the substrate and an opposite end connected to the ground plane; and a second branch reactance at an opposite end of the feeding pin, the second branch reactance including one end connected to the substrate and an opposite end connected to the ground plane.

Abstract: An antenna having a capacitive element is disclosed. Herein, the antenna is configured of a radiator, a ground plane being spaced apart to a predetermined distance from the radiator, a ground pin electrically connected to the radiator and the ground plane, a capacitive element located between the radiator and the ground plane, a first branch arm electrically connecting the capacitive element and the radiator, and a second branch arm electrically connecting the capacitive element and the ground plane. Thus, multiple band and broad band characteristics can be realized by the simple structure of the antenna.

Abstract: A built-in antenna device for an electronic device for communication is provided. The antenna device includes a substrate, an antenna radiator, and a transmission line. The substrate includes a grounding region and a non-grounding region. The antenna radiator is disposed in the non-grounding region of the substrate and fed from a feeding portion provided to the substrate. The transmission line branches from the antenna radiator and is disposed in vicinity of the grounding region to have a predetermined length and a predetermined width. The antenna device controls reactance by coupling the transmission line with the grounding region to allow the antenna radiator to operate in at least one desired band.

Abstract: The present invention relates to a tempered glass sheet for a touch panel, and to a method for manufacturing the tempered glass sheet for a touch panel. The method for manufacturing the tempered glass sheet for a touch panel consisting of tempered glass includes: a first step in which mother glass, including cell glass for a plurality of touch panels, is tempered; a second step in which a process for forming a substrate is performed, which includes forming a transparent electrode by the mother glass unit; and a third step in which, after the substrate-forming process and a half-etching process are completed, the mother glass is cut for the mother glass unit and the cut surface is ground after cutting.

Abstract: An antenna according to an embodiment includes a substrate; a radiator; a ground plane spaced apart from the radiator; a feeding pin for feeding an RF signal; a first branch reactance at one side of the feeding pin, the first branch reactance including one end connected to the substrate and an opposite end connected to the ground plane; and a second branch reactance at an opposite end of the feeding pin, the second branch reactance including one end connected to the substrate and an opposite end connected to the ground plane.

Abstract: A flat display device unified with a touch panel which is adaptive to improve its reliability is disclosed. The flat display device unified with touch panel includes: a liquid crystal display panel having a color filter substrate and a thin film transistor substrate; and the touch panel disposed on the liquid crystal display panel. The touch panel includes: an upper sheet extended to oppose to a driver area of the liquid crystal display panel; a first transparent conduction film formed on the upper sheet; a second transparent conduction film formed on the color filter substrate of the liquid crystal display panel; and a connector connected to the upper sheet.

Abstract: Disclosed is an antenna using a reactive element that is capable of individually controlling the respective resonance frequencies and resonance bandwidths. The antenna includes a radiator electrically coupled with a feeding point, a first reactive element electrically coupling a first point and a second point of the radiator, and a second reactive element electrically coupling a third point and a fourth point of the radiator. Here, the reactive elements are each coupled to the radiator in parallel, and because of the reactive elements, the antenna is made to have higher-order resonance frequencies that are not integer multiple in relation to a fundamental resonance frequency.

Abstract: An antenna having a capacitive element is disclosed. Herein, the antenna is configured of a radiator, a ground plane being spaced apart to a predetermined distance from the radiator, a ground pin electrically connected to the radiator and the ground plane, a capacitive element located between the radiator and the ground plane, a first branch arm electrically connecting the capacitive element and the radiator, and a second branch arm electrically connecting the capacitive element and the ground plane. Thus, multiple band and broad band characteristics can be realized by the simple structure of the antenna.

Abstract: A touch panel integrated flat display device capable of improving reliability is disclosed. The touch panel integrated flat display device includes a display panel, a touch panel disposed on the display panel, and a flexible circuit board electrically connecting a drive PCB and the touch panel to supply a drive signal of the touch panel. In the touch panel integrated flat display device, a plurality of touch panel pads contacting a plurality of flexible circuit board pads are formed at a side of the touch panel, and each of the touch panel pads has at least two contact areas with each of the flexible circuit board pads.

Abstract: A touch panel integrated flat display device capable of improving reliability is disclosed. The touch panel integrated flat display device includes a display panel, a touch panel disposed on the display panel, and a flexible circuit board electrically connecting a drive PCB and the touch panel to supply a drive signal of the touch panel. In the touch panel integrated flat display device, a plurality of touch panel pads contacting a plurality of flexible circuit board pads are formed at a side of the touch panel, and each of the touch panel pads has at least two contact areas with each of the flexible circuit board pads.

Abstract: A flat display device unified with a touch panel which is adaptive to improve its reliability is disclosed. The flat display device unified with touch panel includes: a liquid crystal display panel having a color filter substrate and a thin film transistor substrate; and the touch panel disposed on the liquid crystal display panel. The touch panel includes: an upper sheet extended to oppose to a driver area of the liquid crystal display panel; a first transparent conduction film formed on the upper sheet; a second transparent conduction film formed on the color filter substrate of the liquid crystal display panel; and a connector connected to the upper sheet.

Abstract: The triode portion of an electron gun includes a cathode having an electron emitting material layer and a control electrode in which a through hole portion having a plurality of through holes for passing an electron beam is formed on a surface facing the electron emitting material layer so that the life span of the cathode can be prolonged.