Abstract: A semiconductor LED and a method manufacturing the semiconductor LED are disclosed. The method can include: forming a light emitting structure, which includes an N-type semiconductor layer, an active layer, and a P-type semiconductor layer stacked together, on a substrate; processing a division groove in the shape of a dotted line from the direction of the substrate or from the direction of the light emitting structure; and dividing the substrate and the light emitting structure along the division groove by applying pressure to at least one of the substrate and the light emitting structure. Embodiments of the invention can prevent total reflection for light emitted through the sides, and as a result, the light emitting efficiency can be improved.

Abstract: A tactile presentation touch screen and a display device having the same is disclosed. The tactile presentation touch screen in accordance with an embodiment of the present invention includes a transparent piezoelectric body, a plurality of transparent electrodes, which are coupled to the transparent piezoelectric body such that the transparent piezoelectric body is divided into grids, and a touch screen unit, which is coupled to one surface of the transparent piezoelectric body. Thus, the tactility of the touch screen can be improved by deforming the transparent piezoelectric body corresponding to an area pressed by the user.

Abstract: In accordance with an embodiment of the present invention, the touch panel apparatus can include a panel; a plurality of tactile sensors, disposed at each corner of a lower surface of the panel; and a position calculator, configured to calculate a two-dimensional coordinate corresponding to a contact position on the basis of a ratio of sensed values of a contact, outputted from the tactile sensors, if the contact is made on a surface of the panel.

Abstract: A tactile sensor includes a substrate, electrodes arranged on the substrate, a conductive resistor membrane spaced apart from the electrodes by a predetermined distance, and an elastic member spaced apart from the resistor membrane by a predetermined distance.

Abstract: There is provided an opto-touch screen including: an opto-touch panel including an infrared phosphor material emitting light when exposed to infrared light; a sensor part disposed at a side of the opto-touch panel to detect the light emitted from the opto-touch panel.

Abstract: A tactile sensor includes: a circuit board; a plurality of unit electrode pads; and a pressure sensing film, in which the circuit board can include: a first circuit pattern, implemented by electrically connecting unit electrode pads disposed in a same column among the plurality of unit electrode pads arranged in a 2-dimensional configuration; a second circuit pattern, implemented by electrically connecting unit electrode pads disposed in a same row among the plurality of unit electrode pads arranged in a 2-dimensional configuration; a third circuit pattern, implemented by electrically connecting unit electrode pads disposed in a same section among the plurality of unit electrode pads arranged in a 2-dimensional configuration, if assuming that the entire area in which the plurality of unit electrode pads are arranged is divided by sections.

Abstract: The present invention relates to light emitting diode (LED) packages and methods of manufacturing the same, and more particularly, to an LED package and a method of manufacturing the same that can reduce a variation of color coordinates of mass-produced LED packages.

Abstract: Provided is a method of manufacturing a light emitting diode (LED) package, the method including the steps of: preparing a package substrate having an LED chip mounted thereon; preparing a mold which has a convex portion, a plane portion extending outward from the convex portion, and a projecting portion formed on the lower surface of the plane portion, the projecting portion having a sharp end; engaging the mold with the package substrate such that the projecting portion is contacted with the surface of the package substrate; and filling transparent resin into the convex portion.

Abstract: Provided is a dispensing device including a cylinder; a static mixer that is mounted in the cylinder such that the outer circumferential surface thereof is closely attached to the entire inner wall surface of the cylinder; and a flow path block that has a flow path formed therein and is mounted on the upper portion of the cylinder, the flow path diverging into two or more flow paths. Fluids passing through the static mixer are continuously transferred while being repeatedly divided and mixed.

Abstract: A header-replaceable hybrid waveguide sensor comprises a header coupling section including a dielectric layer having an optical signal input section and an optical signal output section formed in one end thereof, the dielectric layer having two lines of protrusions formed on the upper surface thereof; and a polymer layer formed on and under the dielectric layer; and a sensor header including a dielectric layer having a protrusion formed on the upper surface thereof and a predetermined size of thin metal film provided therein; a polymer layer formed on and under the dielectric layer and having an opening formed in a portion corresponding to the thin metal film, the opening having a larger width than the thin metal film; and a receptor layer formed on the upper surface of the dielectric layer exposed by the opening.

Abstract: An optical waveguide includes a linear metallic thin film having a light delivering unit coupled to one end thereof, through which light is incident; and at least more than two dielectric layers surrounding the metallic thin film. In the optical waveguide, an effective refractive index and a propagation loss in the metallic thin film is reduced so that long-range light transmission is realized. Further, a loss of light caused by the coupling to optical fiber, which is coupled to one end of the metallic thin film, is simultaneously reduced.

Abstract: Provided is a multi-channel biosensor using a biosensor using a surface plasmon resonance capable of measuring the changed resonance angle in real time without additionally scanning an incident angle according to the change of temperature or external environment by including a sensor chip with a plurality of channels arranged on a top surface thereof in parallel, a light source for vertically emitting a beam from a top portion of the sensor chip to a direct bottom portion of the sensor chip, a first lens for defocusing the beam emitted from the light source in the top portion of the sensor chip, a beam splitter for splitting a reflected beam, wherein the reflected beam is obtained by reflecting the beam defocused through the first lens from each channel of the sensor chip and a sensing unit for receiving a parallel component of the beam split in the beam splitter.

Abstract: The present invention relates to a sample analyzing apparatus for controlling the flow of a fluid by the movement of a ball using centrifugal force and inertia. Provided is a sample analyzing apparatus using centrifugal force and inertia according to the invention including a rotating body composed of a disk including upper and lower thin-films; a plurality of chambers composed of a polygonal space parts in the rotating body and including porosities on one side edge and a bottom side thereof; paths connected between the porosities of the chambers to transfer fluids mixed or separated in the chambers; sample inputting holes connected to the chambers formed inside of the rotating body through the paths; and balls moving within the chambers.

Abstract: A hybrid waveguide sensor comprises a dielectric layer having one optical signal input section formed in one end thereof and one optical signal output section formed in the other end thereof, the dielectric layer having a predetermined size of thin metal film provided therein; a polymer layer formed on and under the dielectric layer and having an opening formed to expose a portion of the dielectric layer corresponding to the thin metal film, the opening having a larger width than the thin metal film; and a receptor layer formed on a portion of the dielectric layer corresponding to the thin metal film exposed by the opening.

Abstract: An optical waveguide for transmitting a surface plasmon-polariton wave includes a metallic thin film formed to have a triangle-shaped cross-section; and a pair of first and second dielectric layers coupled to each other such that the opposing surfaces thereof come in contact with each other, with the metallic thin film interposed therebetween, the first and second dielectric layers having a different refractive index and a positive or negative dielectric constant.

Abstract: An optical waveguide comprises a linear metallic thin film having a light delivering unit coupled to one end thereof, through which light is incident; and at least more than two dielectric layers surrounding the metallic thin film. In the optical waveguide, an effective refractive index and a propagation loss in the metallic thin film is reduced so that long-range light transmission is realized. Further, a loss of light caused by the coupling to optical fiber, which is coupled to one end of the metallic thin film, is simultaneously reduced.

Abstract: A circuit for controlling an LED with temperature compensation is employed in the LED-based system. The circuit of the invention linearly controls luminance and color of the LED according to temperature change and more precisely compensates for temperature-related variations in LED properties. Also, the circuit saves the cost of the product due to no requirement of a microprocessor. In the circuit, a waveform generator generates a sawtooth wave for Pulse Width Modulation (PWM) control. A temperature detector detects a voltage via a resistance value which is linearly variable according to changes in an ambient temperature. A PWM controller compares the sawtooth wave from the wave generator with the detection voltage from the temperature detector and generates a PWM voltage having a duty determined by the comparison result.

Abstract: An optical waveguide for transmitting a surface plasmon-polariton wave comprises a metallic thin film formed to have a triangle-shaped cross-section; and a pair of first and second dielectric layers coupled to each other such that the opposing surfaces thereof come in contact with each other, with the metallic thin film interposed therebetween, the first and second dielectric layers having a different refractive index and a positive or negative dielectric constant.

Abstract: A device for opening and closing a lid of an optical disk player is disclosed, which is intended to decrease manufacturing cost, to improve assembling efficiency and productivity, and to minimize rejection rate of products by reduction of components. The device includes a player body having a button and a locking hole, a lid hingedly coupled to an end of the player body to cover the player body, and biased upwardly by a spring, the lid having a hook projected downwardly, a pickup disposed in the player body to be moved back and forth, and provided with a pusher, a catcher disposed in the player body to be moved back and forth, and having a catching protrusion to be engaged with the hook and a contact plate to be in contact with the pusher, and having a connecting rod connected between the catching protrusion and the contact plate, and a spring disposed in the player body to bias the catcher forwardly.

Abstract: A slot with a modified case to accommodate various types of flash memory cards having different sizes is disclosed. The slot includes a slot case divided into upper and lower spaces, and having an insert hole at its front face, a door being opened when the flash memory card is inserted into the insert hole, an elastic element for biasing the door to be closed, first insert guide faces for directing the flash memory card into the lower space, second insert guide faces positioned behind the first insert guide faces to guide the flash memory card passed over the first insert guide faces, slide faces for directing the flash memory card into the upper space, a plurality of insert guides into which the flash memory card inserted along the first and second insert guide faces and the slide faces are fitted, and a plurality of electrodes including contacts corresponding to pins of the flash memory card fitted in the plurality of insert guides.