Abstract: A light emitting diode chip includes a substrate, an epitaxial layer, two inclined plane units, and two electrode units. The substrate has top and bottom surfaces. The epitaxial layer is disposed on the top surface of the substrate. Each of the inclined plane units is inclined downwardly and outwardly from the epitaxial layer toward the bottom surface of the substrate, and includes an inclined sidewall formed on the epitaxial layer, and a substrate inclined wall formed on the substrate. Each of the electrode units includes an electrode disposed on the epitaxial layer, and a conductive portion extending from the electrode to the substrate inclined wall along corresponding one of the inclined plane units.

Abstract: A dual-loop antenna includes a grounding unit, a shorting unit, a feeding unit, a first loop radiating unit and a second loop radiating unit. The shorting unit has at least one shorting pin disposed on the grounding unit. The feeding unit has at least one feeding pin separated from the shorting pin by a predetermined distance and suspended above the grounding unit at a predetermined distance. The first loop radiating unit is disposed above the grounding unit at a predetermined distance. The first loop radiating unit has two ends respectively electrically connected to the shorting unit and the feeding unit. The second loop radiating unit is disposed above the grounding unit at a predetermined distance and around the first loop radiating unit. The second loop radiating unit has two ends respectively electrically connected to the shorting unit and the feeding unit.

Abstract: A flexible light-guiding module with waterproof function includes a flexible light-guiding film, a light-reflecting element and a light-generating element. The light-reflecting element is disposed on a bottom side of the flexible light-guiding film. The light-generating element is embedded into the flexible light-guiding film, and the light-generating element has a circuit substrate and at least one light-generating chip electrically disposed on the circuit substrate. Hence, the light-generating element is embedded into the flexible light-guiding film, so that the light-generating element is waterproof. In addition, the present invention can be attached to any plane or curved surface by using the flexible light-guiding film, so that the application field of the present invention is very extensive. Moreover, the flexible light-guiding film and the light-reflecting element are integrally formed in order to decrease manufacturing cost of the present invention.

Abstract: An earphone includes a body with a surrounding side, a rotatable loop and an ear hook. The rotatable loop is pivotally connected with the body on two opposite ends of the surrounding side. The body and the rotatable loop can rotate with respect to a first axis and with respect to each other. The ear hook is pivotally mounted on one side of the rotatable loop near where the rotatable loop is connected with the body, and the ear hook can rotate with respect to a second axis, which is different from the first axis.

Abstract: A light emitting diode (LED) module includes a lead frame having a number (N) of conducting arms spaced apart from each other, where N?3, and at least one LED die mounted on one of any two neighbor conducting arms. Any two neighbor conducting arms are electrically coupled each other.

Abstract: A ghost key detecting circuit includes at least first and second scan lines, at least first and second return lines, a plurality of switch elements, and a level detecting circuit. The level detecting circuit is used for performing level detection upon measured voltage values at the first and second return lines. When a measured voltage value at a return line is greater than or equal to a reference voltage value, the level detecting circuit generates a logic signal for indicating that a switch element corresponding to the return line at a current scan line is turned off. When the measured voltage value is smaller than the reference voltage value, the level detecting circuit generates a logic signal for indicating that the switch element is turned on.