Posco Led Company Ltd.

Korea Electronics Technology Institute

Chung Ang University Industry Academic Cooperation

Ji Wan Kim

Min Su Kim

Min Suk Oh

Soon Hyung Kwon

Jung Hwa Kim

Youn Sang Kim

Jun Woo Park

Byung Wook Yoo

Yun Ha Kim

Min Uk Yoo

Tae Hoon Song

Sung Kyu Park

Yong Hoon Kim

The present invention relates to an energy conversion device using a liquid and, more specifically, to a method and a device for converting mechanical energy into electrical energy by applying an opposite phenomenon to an electrowetting phenomenon. The contact surface with liquid is being changed within a pair of electrodes, and the resulting change in the contact surface with liquid is being utilized for generating electrical energy. The device can be simplified and the manufacturing cost thereof is being reduced, furthermore it is effective in implementing an energy conversion device that is less faulty, by preventing channel blocking phenomenon and not requiring a lubricating layer or an electrode complicatedly patterned on a channel. Besides, it is advantageous in that a flexible device can be realized and a large area application is facilitated by simplifying the device structure.

Energy conversion device using liquid

The present invention relates to an energy conversion device using a change of a contact surface with liquid and, more specifically, to a method and a device for converting mechanical energy into electrical energy by applying an opposite phenomenon to an electrowetting phenomenon. The energy conversion device having a simplified structure and reduced manufacturing costs with minimal malfunctions by changing a contact surface with liquid between a pair of electrodes and using the change of the contact surface with the liquid to generate electrical energy such that channel blocking can be prevented or a lubricating layer or electrodes complicatedly patterned on a channel are not required.

Energy conversion device using change of contact surface with liquid

Disclosed are a method for producing an oxide film using a low temperature process, an oxide film and an electronic device. The method for producing an oxide film according to an embodiment of the present invention includes the steps of coating a substrate with an oxide solution, and irradiating the oxide solution coat with ultraviolet rays under an inert gas atmosphere.

Method for producing an oxide film using a low temperature process, an oxide film and an electronic device thereof

An adjusting unit disposed between a housing including at least one or more semiconductor optical devices and a case accommodating an SMPS, so as to adjust the height of the casing. At least one or more light emitting modules are mounted on the bottom surface of the housing, and a position determining unit is disposed in the housing in correspondence to an edge of the light emitting module. A heat sink unit is provided in correspondence to the top surface of the housing. Therefore, transport costs can be significantly reduced by securing the loading space. The semiconductor optical devices serving as a light source can be appropriately arranged, and the semiconductor optical devices can be mounted at accurate positions. Furthermore, products can be rapidly mass-produced due to a simplified manufacturing process thereof.

Optical semiconductor lighting apparatus

An optical semiconductor illuminating apparatus capable of being simply installed and built, easily detecting a fault generation point, being simply repaired and replaced, and being compactly implemented. A bracket assembly having a power supply embedded therein is mounted at an upper side of a heat sink including a fixed unit, the power supply is seated on the heat sink including the fixed unit, a plurality of heat radiation fins protrude from an inner surface of the heat sink, and an upper surface of the power supply is disposed at a position higher than or equal to that of an edge of an upper end portion of the heat sink.

Optical semiconductor based illuminating apparatus

An optical semiconductor lighting apparatus includes a light emitting module including a semiconductor optical device, a housing to house the light emitting module, a first sealing body connected to a groove recessed in a polygonal or closed-curve shape of the housing, a first optical cover covering an outer edge of the groove and a top surface of the housing, a first rib formed on a top surface of the first sealing body along a forming direction of the first sealing body, and a pair of second ribs formed in parallel along both edges of a bottom surface of the first sealing body.

Light emitting diode (LED) ceiling light

Light emitting diode light fixture

LED light fixture

Growing community of inventors

Seongnam-si, South Korea

Ji Wan Kim