Abstract: A light emitting diode array including apertures, a line printer head using the light emitting diode array, and a method of manufacturing the light emitting diode array. The light emitting diode array includes the apertures that are formed in a substrate and restrict tunnels of light emitted from a plurality of light emitting diodes. Also, a lens that refracts the light transmitted through the plurality of apertures is included.

Abstract: Provided are a light emitting diode unit including a light emitting diode integrated with a lens, a line printer head using the light emitting diode, and a method of manufacturing the light emitting diode. The light emitting diode unit includes the light emitting diode layer bonded to a transparent substrate after removing a growth substrate on which the light emitting layer is grown, and a lens that refracts light emitted from the light emitting diode is formed on the transparent substrate.

Abstract: Provided is an all-in-one type light guide plate including a plurality of prism-shaped structures that are integrally formed on the all-in-one light guide plate and which totally internally reflect light incident from a light source and emit the totally internally reflected light.

Abstract: Provided is an all-in-one type light guide plate including a plurality of prism-shaped structures that are integrally formed on the all-in-one light guide plate and which totally internally reflect light incident from a light source and emit the totally internally reflected light.

Abstract: Provided are an image drum and a method of manufacturing the image drum. The image drum includes multiple ring electrodes arranged along a longitudinal direction of a drum body and on an outer circumferential surface of the drum body. The ring electrodes are separated from each other. Between the ring electrodes there are ring insulator molds. The image drum can be manufactured by patterning a seed layer on the outer surface of the drum body, forming multiple ring insulator molds on the seed layer, and depositing a conductive material between the ring insulator molds to form the ring electrodes.

Abstract: A method of fabricating an image forming element includes preparing an image drum, transferring conductive ink as a pre-form of a plurality of ring electrodes on an outer circumference of the image drum using an imprinting process, solidifying the conductive ink on the outer circumference of the image drum to form the plurality of ring electrodes, and forming an outer insulating layer on the outer circumference of the image drum having the plurality of ring electrodes.

Abstract: A method of manufacturing an image drum includes fixing a control circuit board inside the drum body using a fixing member so that a plurality of terminals of the control circuit board are located in the slot formed longitudinally on the drum body, forming an insulation layer by applying a sensitizer to the entire external surface of the drum body, forming connection parts by removing parts of the insulation layer where the terminals of the control circuit board are formed using photolithography processing, forming electrode forming grooves including the insulation layer as a base on the external surface of the drum body comprising the connection parts thereon, and forming a plurality of ring electrodes to be connected to respective terminals among the plurality of the terminals, respectively, through the connection parts by applying a fluent conductive substance to the external surface of the drum body comprising the electrode forming grooves thereon, and by filling the electrode forming grooves with the flu

Abstract: A method of fabricating an image drum includes preparing a hollow drum body having a slot extending in a longitudinal direction, preparing a printed circuit board (PCB) having a plurality of board terminals, mounting the PCB inside the hollow drum body with a fixing member such that the board terminals of the PCB are placed in the slot of the hollow drum body, coating a first insulating layer on an outer circumference of the hollow drum body, forming a plurality of ring electrodes on the first insulating layer corresponding to the board terminals of the PCB, in which a portion of ring electrodes which corresponds to the board terminals of the PCB is non-continuous, exposing the board terminals below non-continuous area of the ring electrodes by etching the first insulating layer with the ring electrodes as an etching mask, and forming a connecting electrode to electrically connect the board terminals to the ring electrodes.

Abstract: A slim optical pickup in which a leaf spring is combined with an upper surface of a semiconductor substrate, which is a silicon optical bench (SiOB) monolithically manufactured with a photodetector. The slim optical pickup has a substrate including a light source for generating a light beam, an optical element to irradiate light to an optical disc, a photodetector for receiving a light beam reflected by the optical disc, and a plurality of first bonding pads; a heat sink attached to the surface of the substrate; and a supporting means having a plurality of second bonding pads formed on an inner side of an array of the plurality of the first bonding pads on the substrate.

Abstract: A direct alcohol fuel cell (DAFC) that uses methanol or ethanol as a fuel includes a membrane electrode assembly in which an anode, an electrolyte membrane, and a cathode are stacked, a fuel chamber in which alcohol is stored, and a fuel supply system that supplies the alcohol to the anode from the fuel chamber, wherein the fuel supply system comprises: a spreader that allows the alcohol received from the fuel chamber to be uniformly distributed with respect to an entire surface of the anode; a supply control unit that controls the supply of the alcohol from the fuel chamber to an inlet of the spreader; and a buffer installed between the spreader and the anode to limitedly pass alcohol towards the anode. Accordingly, the DAFC can reduce unnecessary fuel consumption during a shutdown operation and can stably and uniformly supply fuel during a normal operation.

Abstract: An image forming element and its manufacturing apparatus and method are disclosed, in which manufacturing process steps can be simplified to reduce the cost and improve productivity. The manufacturing method of an image forming element includes respectively providing a mold and an image drum, forming line shaped conductive paste patterns on the mold, and transferring the conductive paste patterns from the mold onto the image drum.

Abstract: An image forming element includes an image drum including a plurality of ring electrodes and a slot. The plurality of ring electrodes are formed to be spaced apart from one another on a circumference of the image drum. The slot is formed in a longitudinal direction on the image drum. A connecting member includes a plurality of connecting electrodes and is disposed inside the image drum so that an end of the connecting member is received in the slot. The connecting electrodes are electrically connected with the ring electrodes one to one on the same line.

Abstract: Provided is a backlight having a light source and an all-in-one type light guide plate that has a light exit surface and a plurality of prisms integrally formed on the light exit surface, wherein the prisms totally reflect light to be emitted upwards.

Abstract: An optical coupling device for coupling light to a core of an optical waveguide device. The optical coupling device is connected to the core of the optical waveguide device at a first end and convex at a second end opposite the first. The optical coupling device includes a waveguide connecting the first and second ends of the optical coupling device, for light transmission, and a cladding surrounding the waveguide.

Abstract: A slim optical pickup in which a leaf spring is combined with an upper surface of a semiconductor substrate, which is a silicon optical bench (SiOB) monolithically manufactured with a photodetector. The slim optical pickup has a substrate including a light source for generating a light beam, an optical element to irradiate light to an optical disc, a photodetector for receiving a light beam reflected by the optical disc, and a plurality of first bonding pads; a heat sink attached to the surface of the substrate; and a supporting means having a plurality of second bonding pads formed on an inner side of an array of the plurality of the first bonding pads on the substrate.

Abstract: An optical module includes a holder formed of a medium having light transmittance. The optical module further includes an optical device for converting an optical signal into an electric signal, and vice versa; a light guide member having a core being a path of the optical signal generated by the optical device, and a clad installed outside the core and for forming an interface from which the optical signal is reflected, together with the core; and a holder formed on an end of the light guide member for fixing the optical device and the light guide member of which optical axes are aligned with respect to the same point, the holder through which the optical signal can penetrate. In the optical module, the light guide member and the holder may be formed as a single body. The optical module can stably transmit an optical signal using the optical module and, further, be used in a variety of ways by changing the optical characteristics of the medium having light transmittance of the holder.

Abstract: An optical coupling device for coupling light to a core of an optical waveguide device. The optical coupling device is connected to the core of the optical waveguide device at a first end and convex at a second end opposite the first. The optical coupling device includes a waveguide connecting the first and second ends of the optical coupling device, for light transmission, and a cladding surrounding the waveguide.

Abstract: An optical module includes a holder formed of a medium having light transmittance. The optical module further includes an optical device for converting an optical signal into an electric signal, and vice versa; a light guide member having a core being a path of the optical signal generated by the optical device, and a clad installed outside the core and for forming an interface from which the optical signal is reflected, together with the core; and a holder formed on an end of the light guide member for fixing the optical device and the light guide member of which optical axes are aligned with respect to the same point, the holder through which the optical signal can penetrate. In the optical module, the light guide member and the holder may be formed as a single body. The optical module can stably transmit an optical signal using the optical module and, further, be used in a variety of ways by changing the optical characteristics of the medium having light transmittance of the holder.

Abstract: An optical connector module including: a holder including at least one optical device and electrode; a connector having at least one optical fiber for light transmission, to correspond to the optical device, and latches; and a body in an open structure without top and bottom plates, having a base, a pair of sidewall portions extending from the base, a binding space for receiving the holder and the connector such that the input/output ends of the optical fiber of the connector are aligned to the optical device of the holder, and latch-receiving grooves on the sidewall portions to receive the latches of the connector. The configuration of the optical connector module allows for a slim design and thus it can be applicable for high-speed signal transmission and reception to a slim device which requires such a thin optical connector module.

Abstract: Disclosed is an optical connector module for being connected between first and second devices for receiving and/or outputting electrical information signals, and being capable of converting input electrical signals to optical signals, transmitting the converted signals and again converting the transmitted optical information signals into electrical information signals.