A battery module, a vehicle, and a method of manufacturing a battery module, the battery module including a housing accommodating a plurality of secondary batteries; and a thermoelectric element assembly on the housing and in contact with the plurality of secondary batteries through at least one contact opening in the housing, the thermoelectric element assembly being configured to heat or cool the plurality of secondary batteries.

A disk device according to one embodiment includes a recording medium, a magnetic head, a wiring member, and a flexible printed circuit board. The magnetic head is configured to read/write information from/to the recording medium. The wiring member includes a plurality of first terminals, and a plurality of first wires that electrically connect the magnetic head to the first terminals. The flexible printed circuit board includes a surface, a plurality of second terminals located on the surface to be connected to the first terminals by means of a conductive adhesive, and a ground plane spaced apart from the second terminals in a direction along the surface.

A display device is provided and includes a display panel and a flexible printed wiring substrate. The display panel is provided with a binding structure. The binding structure includes a plurality of first connection terminals arranged along a width direction of the display panel; and a flexible printed wiring substrate is electrically connected to the bonding structure of the display panel. Each of the first connection terminals is obliquely disposed along a lateral edge of the width direction of the display panel, and adjacent lateral edges of two of the adjacent first connection terminals along the width direction of the display panel are parallel to each other.

A housing main body of a plug housing includes an inserted part inserted in a receptacle housing and an exposed part exposed outside the receptacle housing, in a state where the plug housing is fitted to the receptacle housing. The exposed part includes a hook part formed at an end of the exposed part in an intersecting axis intersecting with an insertion direction of inserting the inserted part in the receptacle housing, the hook part being configured to hook a finger thereon, and a contact part contactable with another plug housing between the hook part and the inserted part when the other plug housing is disposed adjacent to the plug housing in the intersecting axis.

There is provided a light irradiator including: light sources forming first and second light source rows; a heat sink; a substrate including first and second traces connected to the first and second light source rows, respectively; and a fixing part configured to fix the heat sink to the substrate. The fixing part is arranged between adjacent light sources included in the first light source row and adjacent in the first light source row; and the fixing part is not arranged between adjacent light sources included in the second light source row and adjacent in the second light source row. The first trace includes a first circumventing part configured to circumvent the fixing part; and the second trace includes a second circumventing part configured to circumvent the fixing part and having a directional component different from the first direction.

A printed circuit board includes a connector insertion area including many rows of crimping holes, each row of crimping holes includes at least two pairs of signal crimping holes (SCHs), and each pair of SCHs includes two SCHs. In a row arrangement direction of the crimping holes, at least one ground crimping hole (GCH) is arranged on either side of each pair of SCHs. A depth of the GCH is greater than or equal to a depth of the SCH, the GCH includes a main hole and a shielding component on at least one side of the main hole, a part of a side wall of the main hole is a part of a side wall of the shielding component, and a sum of lengths of the main hole and the shielding component in a first direction is greater than a length of the SCHs in the first direction.

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.

A light source unit for a display device includes: a printed circuit board including a soldering pad located on a substrate of glass and including a copper layer, and a first diffusing barrier pattern located on the soldering pad and including a molybdenum alloy; and a light emitting diode mounted on the soldering pad through a solder resist. In one embodiment, the printed circuit board is a glass printed circuit board.

A terminal fixing method, for fixing one or more terminals to a plurality of lands provided on a substrate by laser welding, includes: constructing the plurality of lands by one or more terminal installation lands on which the terminals are installed and one or more dummy lands each larger than each of the terminal installation lands; irradiating each of divided laser beams emitted from a laser oscillator toward a corresponding land of two or more lands in the plurality of lands by the laser welding; and constructing the two or more lands by two or more terminal installation lands in the terminal installation lands, or one or more terminal installation lands in the terminal installation lands and the one or more dummy lands.

A light emitting device filament includes a substrate, light emitting device chips, two electrode pads, and connection lines. The substrate includes a first surface and a second surface opposite to the first surface. The substrate extends in a first direction and has a width in a second direction. The light emitting device chips are disposed on the first surface of the substrate. The two electrode pads are disposed on the substrate. The connection lines electrically connect the light emitting device chips and the electrode pads. At least one of the connection lines includes a first portion extending in the first direction and a second portion extending in the second direction.