Abstract: A backlight unit with advantages of being thin and of reducing manufacturing time is disclosed. The backlight unit includes: a plurality of LEDs driven to be divided into at least two channels; a metal PCB loaded with the plurality of LEDs and configured to include a single layer structure; and a plurality of pad portions formed on the metal PCB and defined into the channels. The plurality of pad portions is separated by different distances from top/bottom edge lines of the metal PCB according to the channels.

Abstract: A lower and upper end plugs of an annular fuel rod, into and out of which cooling water flows, comprises: a lower end plug including a filter for debris which has a plurality of pins intersecting each other at the proper position of an inner channel main inlet, through-holes into which the pins of the debris filter are fitted, and at least one inner channel auxiliary inlet through which the cooling water flows into a lower inner channel thereof when the inner channel main inlet is blocked by debris, and which has a through-hole shape; and an upper end plug including at least one upper handling groove and hole, into which a fuel rod handling tool is coupled, at a proper position of an inner circumference of the inner channel main outlet in a circumferential direction.

Abstract: A hands-free device for a mobile phone including an upper casing having a built-in speaker and a lower casing having a magnet to hold the mobile phone is disclosed. The hands-free device includes means for connecting said upper and lower casing to allow the upper casing to rotatably close and open relative to said lower casing, and also includes means for limiting a maximum opening angle of the upper casing. Microphones having a directional input angle of 180 degree or less, which are connected to a same phase signal canceling circuit, are provided to eliminate the incoming background noise.

Abstract: A composition for an image receiving layer including 2 to 20% by weight of a thermoplastic copolymer containing methylmethacrylate residue and butylacrylate residue, 0.1 to 10% by weight of a heat-curable polymer capable of forming a cross link with the thermoplastic copolymer, 0.01 to 0.5% by weight of a reactive silicon-based slipping agent having at least one functional group selected from the group consisting of a conjugate double bond, a free hydrogen group bonded with silicon (Si—H), an amino group and a hydroxy group, 0.01 to 0.5% by weight of a fluorine-based anionic surfactant, and remainder of water.