Abstract: A leadframe strip comprises a plurality of units arranged in a line. Each unit provides two component positions, each having a chip support substrate. The chip support substrates of the two component positions are mechanically linked by at least one support bar. The two component positions of a unit are molded at essentially the same time to produce a plastic housing for a package in each component position. The central portion of the first support bars remains outside of the plastic housing of the two packages.

Abstract: A leadframe strip comprises a plurality of units arranged in a line. Each unit provides two component positions, each having a chip support substrate. The chip support substrates of the two component positions are mechanically linked by at least one support bar. The two component positions of a unit are molded at essentially the same time to produce a plastic housing for a package in each component position. The central portion of the first support bars remains outside of the plastic housing of the two packages.

Abstract: A floor sweeper that picks up large particles without compromising the ability to collect dust. First and second rotary brush parts received in respective concavities in a base of the sweeper, have mouths disposed at different heights.

Abstract: A light guide plate for a surface light source device is provided, which includes an incident surface configured to have light from lamps disposed along a predetermined axis, be incident thereon, an emitting surface configured to have the incident light emitted therefrom, a back surface configured to face the emitting surface, and a plurality of unit cells configured to have microprism patterns engraved thereon and distributed and arranged on the back surface. A crossing angle of a microprism arrangement axis, formed by a ridge direction of the microprism patterns, and of an arrangement axis of the lamps is disposed in an alternate angle. The light guide plate has a high front brightness and an excellent uniformity in brightness and does not have a moire phenomenon. In a backlight unit, the use of optical sheets stacked on the light guide plate can be reduced.

Abstract: Embodiments of the present invention provide a method that includes receiving, by a traffic arbiter, a predetermined time-slot allocation of one or more uplink time slots and/or one or more downlink time slots for a first wireless media access control (MAC) configured to operate within a first wireless transmission system. The method also includes determining, by the traffic arbiter, whether to grant a second wireless MAC, configured to operate within a second wireless transmission system, permission to transmit or receive based at least in part on the predetermined time-slot allocation.

Abstract: A media access control (MAC) processor includes a programmable controller and a memory coupled to the programmable controller to store machine readable instructions for implementing MAC functions corresponding to data received by a communication device. A hardware processor is coupled to the programmable controller. The hardware processor includes a processing engine configured to implement MAC functions on the data received by the communication device. The hardware processor additionally includes a context memory coupled to the processing engine to store state information of the processing engine corresponding to one or more contexts, and context switch logic coupled to the processing to determine when the processing engine should switch contexts.

Abstract: Semiconductor module for a Switched-Mode Power Supply comprises at least one semiconductor power switch, a control semiconductor chip and a leadframe comprising a die pad and a plurality of leads disposed on one side of the die pad. The die pad comprises at least two mechanically isolated regions wherein the semiconductor power switch is mounted on a first region of the die pad and the control semiconductor chip is mounted on a second region of the die pad. Plastic housing material electrically isolates the first region and the second region of the die pad and electrically isolates the semiconductor power switch from the control semiconductor chip.

Abstract: The present disclosure relates to an optical sheet for controlling the direction of light rays which is used for manufacturing backlight units of TFT-LCDs for computer monitors and televisions, and more specifically to an optical sheet which can uniformly diffuse light, improve brightness, and adjust viewing angle. There is provided an optical sheet for controlling the direction of light rays comprising a substrate film; a microlens group arranged on a first face of the substrate film; and a plurality of protuberances formed on a second face of the substrate film, wherein each protuberance comprises a reflective layer at the bottom thereof, and the plurality of protuberances comprise an aperture formed therebetween, and wherein a unit microlens of the microlens group has a first side and a second side with different radii of curvature from each other with respect to a light emission control part thereof.

Abstract: The present disclosure generally relates to a method for producing lens patterns on a roll which is used to produce optical films wherein the method comprises forming a resin film on a roll comprising a plated layer which has been surface-plated with copper (Cu) or nickel (Ni); producing a preliminary lens pattern by striking the surface of the resin film on the roll with a chisel; etching with an etching solution the roll having the preliminary lens pattern formed thereon; and removing the resin film, and a roll for producing optical films comprising lens patterns formed thereon by the same method.

Abstract: An electronic component includes a lead frame, a semiconductor chip and an encapsulating body. The lead frame includes a heat spreader area, a plurality of conductive lead fingers, at least one non-conductive tie bar, and a metal joint. The metal joint connects the at least one non-conductive tie bar to the heat spreader area. The semiconductor chip is provided on a die pad located on the heat spreader area. The encapsulating body covers at least part of the semiconductor chip, at least part of the at least one non-conductive tie bar and part of the lead frame.

Abstract: Disclosed is an optical composite for use in a backlight unit of a liquid crystal display or an illumination apparatus, which is able to sufficiently increase luminance and in which adhesion portions are regularly arranged to thus induce an optical illusion effect so that scratches or stains cannot be seen clearly. A method of manufacturing such an optical composite is also provided. There is no need to additionally use optical films or prism sheets, thus making it possible to inexpensively manufacture optical devices, such as backlight units.

Abstract: Disclosed is a light diffusion plate for use in a backlight unit of a liquid crystal display or an illumination apparatus, which includes polycarbonate resin or polystyrene resin as a base resin, so that appropriate brightness and high hiding properties or appropriate hiding properties and high brightness are exhibited, and thus, while minimizing the use of additional optical films, brightness is sufficiently high, therefore maintaining good light emission quality. The diffusion plate has high ability to hide a light source, is inexpensively manufactured, and has high dimensional stability, so that no curling occurs even under high-temperature and high-humidity conditions, leading to excellent light properties.

Abstract: Disclosed are acrylic polymer beads and an acrylic sol composition containing the acrylic polymer beads that are used for automobile underbody floor, wheel housing, fuel tank, body panel junction and hood, door, or the like for the purpose of water tightness, vibration isolation, and anticorrosion. More specifically, the acrylic polymer beads having a core/shell structure, which are prepared by using a part of the monomer constituting a core layer to form seeds by a seed polymerization, polymerizing the rest of the monomer to form a core layer and then foaming a shell layer containing an appropriate amount of a crosslink agent, have a narrow particle size distribution and thereby provide, when used in addition to a plasticizer and a filler in the preparation of an acrylic sol composition for automobile, high storage stability of the acrylic sol and excellent properties of the coating formed by gelation of the acrylic sol.

Abstract: An electronic component includes a lead frame, a semiconductor chip and an encapsulating body. The lead frame includes a heat spreader area, a plurality of conductive lead fingers, at least one non-conductive tie bar, and a metal joint. The metal joint connects the at least one non-conductive tie bar to the heat spreader area. The semiconductor chip is provided on a die pad located on the heat spreader area. The encapsulating body covers at least part of the semiconductor chip, at least part of the at least one non-conductive tie bar and part of the lead frame.

Abstract: Semiconductor module for a Switched-Mode Power Supply comprises at least one semiconductor power switch, a control semiconductor chip and a leadframe comprising a die pad and a plurality of leads disposed on one side of the die pad. The die pad comprises at least two mechanically isolated regions wherein the semiconductor power switch is mounted on a first region of the die pad and the control semiconductor chip is mounted on a second region of the die pad. Plastic housing material electrically isolates the first region and the second region of the die pad and electrically isolates the semiconductor power switch from the control semiconductor chip.

Abstract: A leadframe strip comprises a plurality of units arranged in a line. Each unit provides two component positions, each having a chip support substrate. The chip support substrates of the two component positions are mechanically linked by at least one support bar. The two component positions of a unit are molded at essentially the same time to produce a plastic housing for a package in each component position. The central portion of the first support bars remains outside of the plastic housing of the two packages.

Abstract: A liquid crystal display (LCD) device is provided. The LCD includes first and second substrates, a gate line formed on the first substrate, a data line formed on the first substrate with the data line intersecting the gate line, a thin film transistor (TFT) formed on the first substrate and connected to the gate line and to the data line, a storage line formed on the substrate which is parallel with the gate line, and a pixel electrode formed on the first substrate and connected to a drain electrode of the TFT. The LCD further includes a black matrix formed on the second substrate, with the black matrix overlapping a channel of the TFT.

Abstract: A lens transfer device improved in assemblability. The lens transfer device includes a barrel holder. An upper case includes a first holder connector having a protrusion snap-fitted into a groove formed on an upper-outer circumference of the barrel holder, a first leaf spring connected to an outer circumferential portion of the first holder connector, and a first body connected to an outer circumferential portion of the first leaf spring. A lower includes a second holder connector having a protrusion snap-fitted into a groove formed on a lower-outer circumference of the barrel holder, a second leaf spring connected to an outer circumferential portion of the second holder connector, and a second body connected to the second leaf spring. A yoke is provided to mount a magnet assembly and mounted on the lower case. A coil is installed and spaced by a predetermined gap from the magnet assembly.

Abstract: The invention provides a lens driving device capable of performing zooming and auto-focusing using a single actuator, with a simple and miniaturized structure and less power consumption. The lens driving device includes a first lens disposed movable during zooming and automatic focusing, a second lens disposed movable during zooming independently from the first lens. The lens driving device also includes a lens movement guide member, having a first guide part, and a second guide part, rotated to move the first and second lenses. An actuator is provided to move the first and second lenses, and both the first and second lenses are moved during zooming while only the first lens is finely moved during automatic focusing.

Abstract: Disclosed herein is a focal length adjustment apparatus in which a magnetic fluid that serves as attenuation means is injected between a magnet and a coil to achieve an improvement in a magnetic flux density and damping effect. The apparatus comprises a moving unit including a lens barrel that contains at least one lens therein, and a coil arranged on an outer circumference of the lens barrel, a fixed unit including a yoke formed with an opening for receiving the lens barrel, a case into which the yoke is inserted and mounted, and a magnet affixed to the yoke to be arranged adjacent to the coil, a supporting member used to elastically support the moving unit relative to the case, and attenuation means interposed between the coil and the magnet to attenuate vibration of the moving unit.