A connection body comprises a body having upper and lower surfaces, a first path and a second path. The first path has a first wired portion configured to be connected to a first core wire of a cable structure and a first terminal portion coupled to the first wired portion by a first coupling portion. The first wired portion, the first terminal portion and the first coupling portion are formed on the upper surface of the body. The second path has a second wired portion configured to be connected to a second core wire of the cable structure and a second terminal portion coupled to the second wired portion by a second coupling portion. The second wired portion is formed on the upper surface of the body. The second terminal portion is formed on the lower surface of the body.

Provided is a display device including a display panel including a plurality of first pads, and a plurality of second pads spaced apart from the first pads, a first circuit board including first circuit pads respectively bonded to the first pads, a first driving chip electrically connected to the first circuit pads, and a first heat radiation member, and a second circuit board including second circuit pads respectively bonded to the second pads, and a second driving chip electrically connected to the second circuit pads, wherein the first heat radiation member overlaps the first driving chip and the second driving chip.

A light-emitting unit includes: a wiring board; light-emitting elements on the wiring board; a light reflecting member on the wiring board, the light reflecting member covering a lateral surface of each of the light-emitting elements; wavelength conversion layers each provided on or above an emission surface of a corresponding one of the plurality of light-emitting elements; light reflecting layers on the wavelength conversion layers, respectively; and a protecting layer configured to transmit light and provided on the light reflecting member. The light-transmitting protecting layer covers at least a lateral surface of the wavelength conversion layers and at least a lateral surfaces of the light reflecting layers. An upper surface of the protecting layer has a first recess in a region where the plurality of light reflecting layers are not present in a top view. The first recess includes at least one concave surface.

A flexible substrate includes: an insulating base member; a plurality of lands formed aligned in a plurality of lines in a first direction on the base member; and a plurality of wirings formed on the base member, extending in a second direction intersecting the first direction, and connected to the plurality of lands on each line of the plurality of lines, wherein the plurality of wirings include a wiring extending between the lands aligned in the first direction, and wherein each of the plurality of lands has a planar shape longer in the second direction.

A system includes a cage and a first coil. The cage includes a first end and a second end opposite the first end. The first end is arranged to receive an electrical connector. The second end is arranged to receive a pluggable module such that the electrical connector forms an electrical connection with the pluggable module. The first coil is positioned on or in the cage such that the first coil is arranged to deliver electric power to the pluggable module by inducing an electric current in a second coil positioned in or on the pluggable module when the pluggable module is connected to the electrical connector in the cage.

A printed circuit board includes: a base substrate having a plurality of pad group areas arranged in a first direction on the base substrate, each of the pad group areas being divided into first, second, and third pad areas that are sequentially arranged in a second direction crossing the first direction; first and second row pads disposed within each of the pad group areas and arranged in a third direction crossing the first and second directions; first lines respectively connected to the first row pads; and lower dummy lines on a same layer as that of the first lines. Some of the first row pads are in the first pad area, rest of the first row pads and some of the second row pads are in the second pad area, and rest of the second row pads are in the third pad area.

The display device includes: a display panel; a first circuit board having a first portion connected to one portion of the display panel and comprising a connector; and a second circuit board electrically connected to the first circuit board through the connector, wherein the first portion includes a base film, a dummy pad disposed on the base film, and a first solder mask partially covering the dummy pad and exposing a portion of the dummy pad, the dummy pad includes a covered region covered by the first solder mask and an exposed region exposed by the first solder mask, and a solder ball, The exposed region of the dummy pad is connected to the connector through a solder ball.

A display apparatus includes a flexible circuit board including a plurality of first substrate pads and a plurality of second substrate pads, a main circuit board connected to the flexible circuit board, and a display panel including a plurality of first display pads and a plurality of second display pads, where the plurality of first display pads is connected to the main circuit board through the flexible circuit board and each of the plurality of first display pads at least partially overlaps corresponding substrate pad of the plurality of first substrate pads, respectively, and each of the plurality of second display pads at least partially overlaps corresponding substrate pad of the plurality of second substrate pads, respectively.

An electro-optical panel including a display region includes a first terminal group including a plurality of first terminals arranged along a first side of a liquid crystal panel; and a second terminal group disposed between the first terminal group and the display region and including a plurality of second terminals arranged along the first side, in which the number of the plurality of second terminals is smaller than the number of the plurality of first terminals.

A cable connection structure includes: a substrate that includes: an opening; and a core wire connection electrode that is arranged on one of a principle surface and an inner layer across the opening; a cable that is arranged on a principle surface side of the substrate and includes a core wire that is electrically connected to the core wire connection electrode, the core wire connection electrode being extended so as to be separated from the substrate, the core wire connection electrode being connected to the core wire.