Abstract: A display apparatus is provided. The display apparatus includes a display panel configured to display an image, an LED module configured to provide backlight to the display panel, an LED driving unit configured to apply a driving voltage to the LED module using an external power, an exterior unit configured to support the LED driving unit and the LED module and include a ground terminal provided separately from the external power, and an LED driving control unit which causes an operation of the LED driving unit to be stopped based on a current flowing in from the ground terminal.

Abstract: An apparatus and a method for displaying an image, and an apparatus and a method for driving a light emitting device are provided. The light emitting device of the image display is controlled in accordance with a periodic signal relating to the image and a sensing signal reflecting an operating state of the light emitting device.

Abstract: Provided is a light emitting driving apparatus, including a driver configured to drive a light emitting device, a switch configured supply power to the light emitting device, and a controller configured to adjust a switching off time of the switch according to a voltage applied to the light emitting device.

Abstract: Disclosed are a display apparatus and a power supplying method thereof. The display apparatus includes: a backlight driver configured to drive a backlight to emit light; a main power supply configured to detect connection of the backlight to the backlight driver and supply a voltage to the backlight driver in response to a control voltage; and a standby power supply configured to supply the control voltage to the main power supply, in response to determining the connection of the backlight to the backlight driver.

Abstract: An electronic apparatus including a power supply, the power supply including: first and second switches configured to perform a switching operation in response to a control signal; a transformer including a primary winding which is provided with a tap and a secondary winding to which voltage from the primary winding is induced, and configured to operate at least a portion of the primary winding to apply a voltage to the secondary winding in response to the switching operation of one of the first switch and the second switch; and a controller configured to output a control signal so that one of the first switch and the second switch can perform the switching operation in accordance with an operation mode of the electronic apparatus.

Abstract: A light source driving apparatus and method of driving a light source are provided. The light source driving apparatus includes a light source configured to generate light, a power source configured to generate power; an inductor which is connected in series between the power source and the light source; a switch which is connected in parallel to the light source and between the inductor and the light source; and a controller configured to turn on the switch at a point of time when a resonance voltage applied between opposite terminals of the switch is zero in a resonance circuit formed by the inductor and the switch after turning off the switch.

Abstract: A liquid crystal display module includes a bottom chassis comprising a lower surface including at least one fastening hole disposed along a first direction; a printed circuit board comprising a first surface supported by the lower surface of the bottom chassis, a second surface opposite to the first surface, and at least one opening hole corresponding to the at least one fastening hole of the bottom chassis; a plurality of light emitting diodes mounted on the second surface of the printed circuit board; and at least one fastening member comprising a head part inserted into the at least one opening hole of the printed circuit board so as not to be protruded outwardly from the second surface of the printed circuit board, and a fastening part disposed in and affixed to the at least one fastening hole.

Abstract: A display apparatus and a control method thereof are disclosed. The display apparatus includes a signal processor which processes a video signal; a display which displays an image based on the video signal processed by the signal processor, a light source providing light for displaying the image; and a driving circuit which drives the light source on the basis of a dimming signal having an on-section and an off-section for dimming the light source. The driving circuit includes a protection circuit for performing a protection operation as a result of an abnormal electric current flowing in the light source during the off-section. The display apparatus is protected when a short circuit occurs between the light source and the driving circuit, thereby enhancing the stability and reliability of the apparatus.

Abstract: A light emitting diode controlling circuit includes a first integrator configured to integrate a voltage value across a resistor of a light emitting diode driving circuit, a second integrator configured to integrate a predetermined reference current value, a comparator configured to compare a first integral value output from the first integrator and a second integral value output from the second integrator, and a controller configured to control a switch according to result of comparing the first integral value and the second integral value.

Abstract: Provided is a light emitting driving apparatus, including a driver configured to drive a light emitting device, a switch configured supply power to the light emitting device, and a controller configured to adjust a switching off time of the switch according to a voltage applied to the light emitting device.

Abstract: A display apparatus is provided. The display apparatus includes a display panel which displays an image, a LED module which provides backlight to the display panel, a LED driving unit which selectively uses current of an inductor to apply driving voltage to the LED module, a sensing unit which senses a current value of the inductor, and a switching control unit which adjusts the driving voltage according to sensing result by the sensing unit.

Abstract: A light source driving apparatus and method of driving a light source are provided. The light source driving apparatus includes a light source configured to generate light, a power source configured to generate power; an inductor which is connected in series between the power source and the light source; a switch which is connected in parallel to the light source and between the inductor and the light source; and a controller configured to turn on the switch at a point of time when a resonance voltage applied between opposite terminals of the switch is zero in a resonance circuit formed by the inductor and the switch after turning off the switch.

Abstract: A light source driving apparatus, a display apparatus and a driving method thereof are disclosed. The light source driving apparatus includes a tapped-inductor boost converter (TIBC) circuit, the TIBC circuit including: a switching unit configured to be turned on and off in accordance with a preset cycle; a tapped inductor configured to transfer a current from a primary side to a secondary side as the switching unit is turned on; and a snubber configured to include a clamp capacitor and clamp diode configured to clamp a voltage of the switching unit, a resonance capacitor configured to perform a resonance as being charged and discharged corresponding to a switching cycle of the switching unit, and first and second resonance diodes configured to charge and discharge the resonance capacitor. Thus, the TIBC circuit provided with the lossless snubber can prevent the voltage stress from increasing during the resonance since the voltage of the switching unit is clamped.

Abstract: Disclosed are a display apparatus, a light source driving apparatus and a driving method thereof, the display apparatus including: an image processor which is configured to process an image; and a controller which is configured to set a plurality of current levels corresponding to a plurality of screen modes for a display and control the display to perform a dimming by receiving a current level of a current which corresponds to a screen mode of the display.

Abstract: An inductor and an electronic device including the same are provided. The inductor includes: a coil in which an electric current flows; and a core that the coil is wound around, wherein the core includes a central portion that the coil is wound around; extensions extending from opposite edges of the central portions; and lateral portions extending from the extensions along the circulation path of the magnetic flux and facing the central portion with the coil disposed there between, and a first height at a first position of the extension portions on the circulation path of the magnetic flux spaced away from the edges of the central portion by a first distance which is larger than a second height at a second position on the circulation path of the magnetic spaced away from the edges of the central portion by a second distance which is longer than the first distance.

Abstract: A display device including a display panel which displays a video signal is disclosed. The display device includes a panel driver configured to drives the display panel; a light source configured to provide light to the display panel; a light source driver configured to control the brightness of the light source in accordance with a pulse width modulation dimming signal in synchronization with a vertical sync signal; and a controller configured to receive the vertical sync signal, determine whether the frequency of the vertical sync signal is normal or abnormal, and provide the dimming signal (PWM pulses) to the light source driver in non-synchronization with the vertical sync signal during at least one frame, in response to the frequency of the vertical sync signal being abnormal.

Abstract: An inductor configured to be mounted on a printed circuit board is provided. The inductor may include a drum core including a cylindrical body and first and second flanges extending from opposite ends of the cylindrical body, a coil wound around the cylindrical body, a plurality of pins on which opposite ends of the coil are wound, wherein each of the plurality of pins has one end fixed to the second flange and another end configured to be fixed to the printed circuit board, and at least one projection which protrudes from the second flange and is configured to support the inductor to stand vertically on the printed circuit board.

Abstract: A backlight unit is provided, which includes a light-emitting diode LED, an LED driving unit which drives the LED, a control unit which measures a temperature of the LED driving unit, and, if the temperature exceeds a preset threshold temperature, interrupts an operation of the LED driving unit, and a threshold temperature adjustment unit which changes the preset threshold temperature based on a limit temperature of a circuit element included in the LED driving unit.

Abstract: A display apparatus includes a liquid crystal panel; a light guide plate disposed at a rear side of the liquid crystal panel; at least one LED module disposed in at least one side of the light guide plate and including a plurality of LEDs; a driver which drives the plurality of LEDs; an image analyzer which analyzes an input image; and a switch unit which turns off at least one LED among the plurality of LEDs while a remainder of the plurality of LEDs are being driven by the driver, according to a result of the analyzing the input image, wherein the at least one LED is disposed closer to a corner of the liquid crystal panel than the remainder of the plurality of LEDs.

Abstract: An apparatus and a method for common use of a power supply and a display apparatus using the same are provided. The display apparatus includes a display panel, a backlight unit which provides backlight to the display panel, and a power supply unit for common use which comprises an adjusting circuit unit comprising a plurality of resistances, and provides a current of a magnitude corresponding to a combination state of the plurality of resistances to the backlight unit. Accordingly, the power supply apparatus for common use adjusts an output current easily and is commonly used for diverse display apparatuses, and thus a manufacturing process is efficiently improved.