Abstract:
The present disclosure provides a display device including a wiring substrate having a first substrate layer and a second substrate layer, a conductive adhesive layer configured to cover the wiring substrate, and a plurality of semiconductor light emitting devices coupled to the conductive adhesive layer, and electrically connected to a first electrode and a second electrode, wherein the first electrode is disposed at the first substrate layer, and the second substrate layer includes one surface facing the conductive adhesive layer and the other surface covering the first electrode, and an auxiliary electrode electrically connected to the first electrode and the second electrode are disposed on one surface of the second substrate layer.
Abstract:
A rollable display device includes a display panel (110) for displaying an image, a printed circuit board (130) connected to an edge of the display panel (110), and a roller (120) which the display panel (110) is rolled onto or unrolled from. The roller (120) has a cylindrical shape having an inner space (A), and the printed circuit board (130) is disposed in the inner space (A).
Abstract:
Systems and methods for monitoring power in a conductor. A flex circuit may include multiple layers including a voltage sensing layer, a coil layer, and a ground layer. The coil layer includes traces that form a coil structure around a conductor when the flex circuit is wrapped around the conductor. The coil layer generates a voltage that may be integrated to determine a current in the conductor. When the flex circuit is wrapped around the conductor, the voltage sensing layer is closest to the conductor. The voltage sensing layer forms a capacitor with the conductor. Using an adjustable capacitive voltage divider, the voltage of the conductor may be determined from a voltage signal received from the voltage sensing layer.
Abstract:
An oblong sized printed circuit board (1) comprises light emitting diode circuitry (2, 3). Parts of the printed circuit board (1) are flexible in at least one direction, to improve a manufacturing efficiency. Preferably, the printed circuit board (1) can make curves in length and width directions and does not require holes for screws. The light emitting diode circuitry (2, 3) may comprise light emitting diode circuits (2) with light emitting diodes and other circuitry (3) such as a driver for driving light emitting diode circuits (2) individually for providing ambient light for a display (5). A device (100) comprising the printed circuit board (1) may further comprise the display (5). Such a device (100) is for example a television receiver / display device / screen device. The printed circuit board (1) may be attached to structures (61, 62) moveable by hand / machine for directing the ambient light. The device (100) may be a roll (101) for rolling up the printed circuit board (1).
Abstract:
A coil-shaped flexible printed circuit board (1) retains its original outer diameter unchanged without any guide or retainer. For this purpose, either the conductive pattern of copper (3) or synthetic base material (2) is processed to have a permanent stretch before or when the board is wound into a coil shape. A squeezing step may be employed to generate the permanent stretch on the conductive pattern (3). Alternatively, a heat treatment of the base material may be used to form an additional bridged ingredient after the board (1) has been wound. The additional bridged ingredient may retain the coil shape unchanged for a long time without guiding pieces.
Abstract:
The invention relates to a flexible metal/plastic laminate freed from a drawback encountered in a conventional laminate of this kind, i.e. the inconvenience that, even when the metal and plastic layers constituting the laminate can be separated from each other, the length of the metal layer is larger than that of the plastic layer, by subjecting the metal layer in the laminate to compressive plastic deformation continuously so as to compress the same. The obtained laminate has a reduced dimensional difference between the metal and plastic layers and a high processability. Also a method and an apparatus for manufacturing the same are disclosed.
Abstract:
A lighting module (100) is disclosed, comprising an elongated member (110) having an inner surface (112) at least in part delimiting a light-guiding region (114) within the elongated member, wherein the elongated member has a first end (116) a second end (118) and is configured to permit passage of fluid through the light-guiding region (114) and into and out of the first end and the second end, respectively. Light can be out-coupled from the light-guiding region (114) via at least one of the first end (116) and the second end (118). The elongated member (110) includes a carrier which is at least in part flexible and has a first side (131) and a second side (132) opposite to the first side (131). At least one light-emitting element (120) is coupled to the first side (131) of the carrier on a first portion (151) of the carrier. The carrier is arranged such that the second side (132) of the first portion (151) of the carrier at least partially faces the second side (132) of a second portion (152) of the carrier, such that the first side (131) of the first portion (151) of the carrier at least in part constitutes the inner surface (112) of the elongated member (110). By way of such arrangement of the carrier, the at least one light-emitting element (120) can be arranged within the elongated member (110), and may hence emit light into the light-guiding region (114). A lighting device (200) comprising the lighting module (100) is also disclosed.
Abstract:
A flexible conductive track arrangement has a pre-flexing condition in which the arrangement is generally planar. Conductive tracks are formed from a metal layer and they are covered above and below by insulator layers. The elongate conductive tracks are generally planar but locally corrugated perpendicularly to the general plane. This enables improved binding performance, for example to form tight windings using the conductive tracks.