Abstract: An organic light emitting diode (OLED) tile device for illumination includes: a rear surface cover having a plurality of conductive rear surface cover magnets which are electrically connected to an anode layer and a cathode layer of an OLED tile for illumination and pass a current to the OLED tile, and coupled to a rear surface of the OLED tile; and a front surface cover having a plurality of front surface cover magnets and integrally coupled to the rear surface cover and the OLED tile for illumination.

Abstract: An organic light emitting diode (OLED) tile device for illumination includes: a rear surface cover having a plurality of conductive rear surface cover magnets which are electrically connected to an anode layer and a cathode layer of an OLED tile for illumination and pass a current to the OLED tile, and coupled to a rear surface of the OLED tile; and a front surface cover having a plurality of front surface cover magnets and integrally coupled to the rear surface cover and the OLED tile for illumination.

Abstract: A method of measuring an otoacoustic emission (OAE) is provided. The method comprises generating a frequency OAE graph with N plot lines, by performing frequency sweeping on N signals having different levels, wherein N is a natural number of at least 2; and when there are plot lines that overlap each other in the frequency OAE graph, compensating values of the N plot lines of the frequency OAE graph in a predetermined frequency section including a frequency section where the plot lines overlap each other.

Abstract: A thin film deposition apparatus that can be simply applied to produce large-sized display devices on a mass scale and that improves manufacturing yield. The thin film deposition apparatus includes a deposition source that discharges a deposition material; a deposition source nozzle unit disposed at a side of the deposition source and including a plurality of deposition source nozzles arranged in a first direction; and a patterning slit sheet disposed opposite to the deposition source nozzle unit and including a plurality of patterning slits arranged in a second direction that is perpendicular to the first direction. A deposition is performed while the substrate or the thin film deposition apparatus moves relative to each other in the first direction, and the deposition source, the deposition source nozzle unit, and the patterning slit sheet are formed integrally with each other.

Abstract: A method and an apparatus for amplifying power in a communication system is disclosed that includes a detection module which detects a power level of a predetermined signal selected from among an input signal and an output signal of a power amplifier and then transmits an operation mode control signal for the power amplifier; a gate bias controller which controls a gate bias of the power amplifier in accordance with the detected power level; and a power amplifier which operates as class B or class A in accordance with control by the gate bias controller to generate a pre-distortion component, offsets a distortion component generated during amplification of the predetermined signal by synthesizing the pre-distortion component with the distortion component, and outputs only the predetermined signal without a distortion component.

Abstract: A method and an apparatus for amplifying power in a communication system is disclosed that includes a detection module which detects a power level of a predetermined signal selected from among an input signal and an output signal of a power amplifier and then transmits an operation mode control signal for the power amplifier; a gate bias controller which controls a gate bias of the power amplifier in accordance with the detected power level; and a power amplifier which operates as class B or class A in accordance with control by the gate bias controller to generate a pre-distortion component, offsets a distortion component generated during amplification of the predetermined signal by synthesizing the pre-distortion component with the distortion component, and outputs only the predetermined signal without a distortion component.