Abstract: Disclosed are a source driver and a method of detecting crack of a display panel. A source driver may comprise a first circuit configured to apply first data to data lines connected to sub-pixels of a display panel to charge a first driving voltage; and a second circuit formed on the display panel that applies the first driving voltage to a detection line formed on the display panel to detect the presence of cracks in the display panel based on the illumination status of the sub-pixels, wherein the detection line includes a first detection node and a second detection node formed on one side of the display panel along its extension direction, wherein the first detection node is connected to data lines of the first and third sub-pixels, and wherein the second detection node is connected to data line of the second sub-pixel.

Abstract: The present invention relates to a method for preparing an alkali metal ion conductive chalcogenide-based solid electrolyte, a solid electrolyte prepared thereby, and an all-solid-state battery comprising the same.

Abstract: The carrier-foil-attached ultra-thin copper foil according to one embodiment of the present invention comprises a carrier foil, a release layer, a first ultra-thin copper foil, a Cu—Al bonding strength improvement layer, an Al layer, and a second ultra-thin copper foil, wherein the release layer may comprise a first metal (A3) having peeling properties, and a second metal (B3) and third metal (C3) facilitating the plating of the first metal (A3).

Abstract: An antenna apparatus includes a dielectric layer; a patch antenna pattern disposed on an upper surface of the dielectric layer and including an upper surface having a polygonal shape, a plurality of feed vias respectively disposed to penetrate the dielectric layer by at least a portion of a thickness of the dielectric layer, respectively disposed to be biased toward a first side and a second side, different from each other, from a center of the polygonal shape of the patch antenna pattern, and respectively disposed to be spaced apart from the patch antenna pattern, and a plurality of feed patterns respectively electrically connected to an upper end of a corresponding feed via, among the plurality of feed vias, respectively disposed to be spaced apart from the patch antenna pattern, and configured to provide a feed path to the patch antenna pattern, wherein the polygonal shape of the patch antenna pattern has a structure in which the first side and a third side between the first and second sides form an obtuse

Abstract: An antenna apparatus includes a dielectric layer; a patch antenna pattern disposed on an upper surface of the dielectric layer and including an upper surface having a polygonal shape, a plurality of feed vias respectively disposed to penetrate the dielectric layer by at least a portion of a thickness of the dielectric layer, respectively disposed to be biased toward a first side and a second side, different from each other, from a center of the polygonal shape of the patch antenna pattern, and respectively disposed to be spaced apart from the patch antenna pattern, and a plurality of feed patterns respectively electrically connected to an upper end of a corresponding feed via, among the plurality of feed vias, respectively disposed to be spaced apart from the patch antenna pattern, and configured to provide a feed path to the patch antenna pattern, wherein the polygonal shape of the patch antenna pattern has a structure in which the first side and a third side between the first and second sides form an obtuse

Abstract: An antenna apparatus includes a ground plane, a patch antenna pattern disposed on an upper surface of the ground plane, a feed via penetrating the ground plane and spaced apart from the patch antenna pattern, and a coiled feed pattern electrically connected to an upper end of the feed via, spaced apart from the patch antenna pattern, and configured to provide a feed path to the patch antenna pattern, wherein at least a portion of the coiled feed pattern is coiled, wherein the patch antenna pattern includes an aperture portion corresponding to the coiled feed pattern.

Abstract: An antenna device according to embodiment includes: a first dielectric layer; a second dielectric layer disposed on the first dielectric layer; a third dielectric layer disposed on the second dielectric layer; a first antenna including a first feed via passing through the first dielectric layer and a first antenna patch disposed in a first surface of the first dielectric layer; and a second antenna including a second feed via passing through the first dielectric layer and a second antenna patch disposed in the first surface of the first dielectric layer, wherein a dielectric constant of the second dielectric layer is lower than a dielectric constant of the first dielectric layer and a dielectric constant of the third dielectric layer, and the second dielectric layer has a cavity overlapping the second antenna patch.

Abstract: An antenna apparatus includes a dielectric layer; and a via that extends through the dielectric layer, the via includes a conductive first portion and a non-conductive second portion surrounded by the conductive first portion. An antenna of the antenna apparatus is fed through the via.

Abstract: An antenna apparatus includes a first patch antenna pattern comprising a through-hole, a second patch antenna pattern disposed above the first patch antenna pattern and spaced apart from the first patch antenna pattern, a first feed via electrically connected to the first patch antenna pattern, a second feed via penetrating through the through-hole of the first patch antenna pattern, and a feed pattern disposed between the first patch antenna pattern and the second patch antenna pattern, and having one end connected to the second feed via, and another end connected to the second patch antenna pattern at a point closer to an edge of the second patch antenna pattern than the second feed.

Abstract: An antenna apparatus includes a ground plane, a plurality of first patch antenna patterns arranged on a level higher than the ground plane and each configured to transmit and/or receive a first radio frequency signal of a first frequency, a plurality of second patch antenna patterns arranged on a level higher than the ground plane and each having a size smaller than a size of each of the first patch antenna patterns, wherein the plurality of second patch antenna patterns include at least one feed patch antenna pattern configured to transmit and/or receive a second radio frequency signal of a second frequency different from the first frequency, and at least one dummy patch antenna pattern which is not fed any of the first and second radio frequency signals.

Abstract: An antenna apparatus may include: first patch antenna patterns arrayed in an N×1 structure, the first patch antenna patterns each having a polygonal shape having an oblique side with respect to an array direction of the N×1 structure; feed vias electrically connected to the first patch antenna patterns; and guide vias arrayed along the oblique side, wherein N is a natural number greater than or equal to 2.

Abstract: A chip antenna module array includes a connection member and chip antenna modules mounted on the connection member. Each chip antenna module includes: a first patch antenna dielectric layer; a feed via extending through the first patch antenna dielectric layer; and a patch antenna pattern disposed on an upper surface of the first patch antenna dielectric layer and configured to be fed from the feed via. At least one chip antenna module includes: a ground pattern disposed on a lower surface of the first patch antenna dielectric layer; a chip-antenna feed line including a second part disposed on a lower surface of the ground pattern, and electrically connecting a connection member feed line to the feed via; a first feed line dielectric layer disposed on a lower surface of the second part; and a solder layer disposed on a lower surface of the first feed line dielectric layer.

Abstract: An antenna apparatus includes a patch antenna pattern; a feed via electrically connected to the patch antenna pattern at a point offset in a first direction from a center of the patch antenna pattern; a first side coupling pattern spaced apart from the patch antenna pattern along a second direction and a second side coupling pattern spaced apart from the patch antenna pattern along the second direction and opposite to the first side coupling pattern; and a first side ground pattern spaced apart from the patch antenna pattern along the first direction and a second side ground pattern spaced apart from the patch antenna pattern along the first direction and opposite to the first side ground pattern. The patch antenna pattern and the first and second side coupling patterns are disposed between the first and second side ground patterns with respect to the first direction.

Abstract: A chip antenna module includes: a solder layer disposed on a lower surface of the first dielectric layer; a first patch antenna pattern disposed on upper surface of the first dielectric layer and having a through-hole; a second patch antenna pattern spaced apart from an upper surface of the first patch antenna pattern and having an area less than an area of the first patch antenna pattern; a first feed via extending through the first dielectric layer and electrically connected to the first patch antenna pattern; a second feed via extending through the first dielectric layer and the through-hole, and electrically connected to the second patch antenna pattern; and shielding vias extending through the first dielectric layer, electrically connected to the first patch antenna pattern, and at least partially surrounding the second feed via.

Abstract: An antenna apparatus may include: a substrate; two feed vias disposed in the substrate; and an antenna pattern disposed on one surface of the substrate, and including a central portion and wing portions protruding from the central portion. A first wing portion and a second wing portion adjacent to the first wing portion, among the wing portions, may be disposed over the two feed vias. The antenna apparatus may be configured to selectively provide a feed signal to either one or both of the two feed vias.

Abstract: A chip antenna module includes: a solder layer disposed on a lower surface of the first dielectric layer; a first patch antenna pattern disposed on upper surface of the first dielectric layer and having a through-hole; a second patch antenna pattern spaced apart from an upper surface of the first patch antenna pattern and having an area less than an area of the first patch antenna pattern; a first feed via extending through the first dielectric layer and electrically connected to the first patch antenna pattern; a second feed via extending through the first dielectric layer and the through-hole, and electrically connected to the second patch antenna pattern; and shielding vias extending through the first dielectric layer, electrically connected to the first patch antenna pattern, and at least partially surrounding the second feed via.

Abstract: An antenna module includes: an IC package including an IC; first and second antenna portions including respective patch antenna patterns, respective feed vias connected to the respective patch antenna patterns, and respective dielectric layers surrounding the respective feed vias; and a connection member having an upper surface on which the first and second antenna portions are disposed and a lower surface on which the IC package is disposed, the connection member forming an electrical connection path between the IC and the feed via of the first antenna portion and an electrical connection path of the second antenna portion. The connection member includes a first region disposed between the IC package and the first antenna portion, a second region on which the second antenna portion is disposed, and a third region electrically connecting the first and second regions and being more flexible than the dielectric layer of the first antenna portion.

Abstract: An antenna apparatus includes a ground plane, a plurality of first patch antenna patterns arranged on a level higher than the ground plane and each configured to transmit and/or receive a first radio frequency signal of a first frequency, a plurality of second patch antenna patterns arranged on a level higher than the ground plane and each having a size smaller than a size of each of the first patch antenna patterns, wherein the plurality of second patch antenna patterns include at least one feed patch antenna pattern configured to transmit and/or receive a second radio frequency signal of a second frequency different from the first frequency, and at least one dummy patch antenna pattern which is not fed any of the first and second radio frequency signals.

Abstract: An antenna apparatus includes: a first dipole antenna pattern; a feed line electrically connected to the first dipole antenna pattern; and a first ground plane disposed rearward of the first dipole antenna pattern and spaced apart from the first dipole antenna pattern; wherein the first ground plane forms a step-type cavity, and width of a rear portion of the step-type cavity is different from a width of a front portion of the step-type cavity.

Abstract: An antenna apparatus includes a ground plane, a plurality of first patch antenna patterns arranged on a level higher than the ground plane and each configured to transmit and/or receive a first radio frequency signal of a first frequency, a plurality of second patch antenna patterns arranged on a level higher than the ground plane and each having a size smaller than a size of each of the first patch antenna patterns, wherein the plurality of second patch antenna patterns include at least one feed patch antenna pattern configured to transmit and/or receive a second radio frequency signal of a second frequency different from the first frequency, and at least one dummy patch antenna pattern which is not fed any of the first and second radio frequency signals.