Abstract: Provided is a clamping device of a spindle motor including a body, a stopper, a weight, and an elastic member. The stopper is coupled to the body. The weight is coupled to the stopper. The elastic member elastically supports the stopper.

Abstract: A spindle motor, obtaining more accurate shaft perpendicularity and more convenient assembling process, is disclosed, the spindle motor includes: a rotor; a bearing housing into which the rotor is inserted; a base plate fixing the bearing housing; a housing guide fixed to the base plate, the housing guide having at least one vertical portion guiding an outer surface of the bearing housing; a printed circuit board mounted on the base plate; and a stator coupled to an outer surface of the bearing housing and supplied with power from the printed circuit board.

Abstract: The apparatus for driving a backlight includes a plurality of lamps each of which has first and second electrodes, a transformer for receiving an AC waveform to provide high voltage AC waveform to drive the plurality of lamps, a detection circuit for generating a detection voltage corresponding to the high voltage AC waveform, an accumulation operation unit for accumulating the detection voltage from the detection circuit and generating a shutdown signal voltage, and a controller for receiving an input voltage to provide the AC waveform to the transformer and for receiving the shutdown signal voltage to shutdown the plurality of lamps in response to the shutdown signal voltage.

Abstract: A backlight unit is disclosed, to remove an unnecessary portion from a PCB and to decrease the number of connectors and wires, which includes a plurality of light-emitting lamps arranged in one direction inside a lamp housing; first and second driving unit PCBs positioned at both sides on the rear surface of the lamp housing, to apply a power to the light-emitting lamps; first and second connection PCBs positioned at both sides of the lamp housing, wherein the respective first and second connection PCBs are separately provided from the first and second driving unit PCBs; and first and second power supplying wires for the respective connection between the first and second driving unit PCBs with the first and second connection unit PCBs.

Abstract: A backlight driving apparatus of a liquid crystal display (LCD) apparatus including a master trans and a slave trans for supplying a current to a plurality of lamps, and a master driver and a slave driver for driving the lamps, includes an operated condition unit that converts an AC voltage generated in accordance with a phase difference between a master AC voltage and a slave AC voltage fed back from the master trans and the slave trans, respectively, into an analog DC voltage; a protect controller that determines an error is generated during an operation of the lamps using the analog DC voltage and outputs an operating error signal when an error is generated; and a lamp driving controller that stops driving the master driver and the slave driver in response to the operating error signal.

Abstract: A liquid crystal display device and a controlling method thereof are provided. The liquid crystal display device includes a liquid crystal display panel screen divided into a plurality of areas; a plurality of backlight sources to selectively irradiate light respectively to the divided areas of the screen; and a controller to obtain at least one intermediate brightness value associated with data for at least one of the divided areas and to control a brightness of at least one of the backlight sources corresponding to the at least one divided area according to the at least one intermediate brightness value.

Abstract: A driving circuit system for a stereoscopic image display device including a central controlling unit outputting control signals and selection signals according to command signals of an external device, a signal-generating unit outputting driving signals according to the control signals, an output signal-controlling unit receiving the driving signals and outputting the driving signals selected according to the selection signals to a light controlling unit of the stereoscopic image display device, and a connector unit connecting the external device and the light controlling unit.

Abstract: A digital broadcasting data reception unit receives digital broadcasting data. A multimedia module parses the digital broadcasting data into video and audio data to output the video and audio data. A terminal control unit receives the digital broadcasting data from the digital broadcasting data reception unit when it is transmitted to the multimedia module, and parses the received digital broadcasting data into the video and audio data. A memory unit stores the video and audio data into which the digital broadcasting data is parsed by the terminal control unit according to a control operation of the terminal control unit.