A flexible printed circuit board whose end part side is connected to a print element substrate capable of ejecting ink using a print element, so as to be capable of transmitting a signal from a control part of a printing apparatus to the print element substrate via wiring and to be capable of transmitting a signal from the print element substrate to the control part via the wiring, wherein a side part side of high-potential wiring includes at least one of a regulation part that regulates penetration of ink and a wiring part that is configured with low-potential ground wiring and low-potential liquid signal line whose signal value transmitted by the control part or operation based on a signal is monitored.

First and second conductors extend on and along a first surface of a substrate. The first conductor includes first and second parts extending in first and second directions and a third part connected to the first and second parts. The second conductor includes fourth and fifth parts extending in the first and second directions and a sixth part connected to the fourth and fifth parts. A first insulator partly covers the first surface, covers the first to fifth parts, and is partly opened in a first region extending along the sixth part above the sixth part in a third direction.

A flexible printed circuit board according to an embodiment includes: a substrate; a circuit pattern disposed on the substrate; and a protective layer on the circuit pattern, wherein the circuit pattern includes a first circuit pattern and a second circuit pattern connected to a chip in a chip mounting region, a first direction that is a direction in which the circuit pattern extends and a second direction perpendicular to the first direction are defined in the substrate, the substrate includes first and second ends facing each other in the first direction and third and fourth ends facing each other in the second direction, the protective layer includes fifth and sixth ends spaced apart from ends of the substrate and facing in the first direction and seventh and eighth ends spaced apart from ends of the substrate and facing in the second direction, and an outer pattern disposed adjacent to the third end and the fourth end on the substrate, wherein the outer pattern includes: a first outer pattern and a second outer pattern adjacent to a pad portion of the first circuit pattern and facing in the second direction; and a third outer pattern and a fourth outer pattern adjacent to a pad portion of the second circuit pattern and facing in the second direction, the first outer pattern includes a first pattern portion and a second pattern portion spaced apart from each other, the second outer pattern includes a third pattern portion and a fourth pattern portion spaced apart from each other, the third outer pattern includes a fifth pattern portion and a sixth pattern portion spaced apart from each other, the fourth outer pattern includes a seventh pattern portion and an eighth pattern portion spaced apart from each other, and a fifth end of the protective layer is disposed between the first pattern portion and the second pattern portion and between the third pattern portion and the fourth pattern portion.

In a printed wiring board, one transmitting circuit and N (N is an integer of 3 or more) receiving circuits are coupled by a multi-point wiring. First to N-th branch points are provided in sequence in the multi-point wiring having one end coupled to the transmitting circuit. Wirings branched at the respective branch points are coupled to the respective receiving circuits. Here, a wiring length from a coupling point of the transmitting circuit to a first branch point is configured to be longer than a wiring length from the first branch point to the second branch point. Wiring lengths between the adjacent branch points at and after a second branch point are configured to be shorter than the wiring length from the first branch point to the second branch point.

Disclosed is an antenna impedance matching circuit, an antenna system, a printed circuit board, and a terminal. The antenna impedance matching circuit comprises: a first transmission line having a first specific length such that the first transmission line is capacitive, and a second transmission line having a second specific length such that the second transmission line is inductive. In particular, the first transmission line and the second transmission line are connected in parallel, and terminals of the first transmission line and the second transmission line are open or shorted.

A radio frequency circuit with font routing to replace a resistor includes a routing layer and a ground layer. The routing layer includes a first pad, a second pad and a font routing unit. The second pad is corresponding to the first pad. The font routing unit is connected between the first pad and the second pad, and has a trace width. The trace width is less than a 50 ohm trace width. The ground layer is disposed below the routing layer and is separated from the routing layer by a height. The font routing unit has a second equivalent impedance at the radio frequency, the second equivalent impedance is determined according to the trace width, the height and the radio frequency, and the second equivalent impedance is the same or similar to a first equivalent impedance.

A printed wiring board includes a first conductor layer, a resin insulating layer formed on the first conductor layer, a second conductor layer formed on a surface of the resin insulating layer and including a signal wiring, and a via conductor formed in the resin insulating layer such that the via conductor is connecting the first conductor layer and the second conductor layer. The resin insulating layer has an opening such that the opening is exposing a portion of the first conductor layer and that the via conductor is formed in the opening of the resin insulating layer, and the resin insulating layer includes inorganic particles and resin such that the resin is forming the surface of the resin insulating layer.

This disclosure is directed to product merchandising systems that are designed to prevent brute force attempts to steal a product on display. The merchandising systems include security features that enhances the strength of the connection between a puck assembly and a base assembly and between the base assembly and a display surface. The merchandising systems are suited for withstanding brute force pulling attacks on the puck assembly and the base assembly.

The disclosure relates to a printed circuit board with a printed circuit board core which has an upper face. A metallization layer is formed on at least some sections of the upper face. The metallization layer includes at least one first region and a second region which differs from the first region. An electric module is arranged on the first region and is connected to same in an electrically conductive manner, the second region is arranged and/or formed at a distance to the first region, and the second region surrounds and/or borders the first region. The electric module is encapsulated with a sealing material, where the encapsulation is delimited by the second region.

A display device includes a substrate, a first electrode extending in a first direction on the substrate, a first partition wall extending in the first direction on a central portion of the first electrode, a second electrode extending in parallel with the first electrode on the substrate, a second partition wall extending in the first direction on a central portion of the second electrode, and a plurality of light-emitting diodes electrically connected between the first electrode and the second electrode.