Patent application number | Description | Published |
20110102475 | DISPLAY APPARATUS, BACKLIGHT UNIT, AND BACKLIGHT PROVIDING METHOD FOR CONTROLLING A PLURALITY OF LED STRINGS - A display apparatus, a backlight unit, a backlight providing method for controlling a plurality of light emitting diode (LED) strings are provided. The display apparatus includes a display panel, and a backlight unit (BLU) which projects backlight onto the display panel, wherein the BLU includes a plurality of light emitting diode (LED) strings, and a power supply unit which supplies minimum voltage from among the voltages needed to operate the plurality of LED strings to the plurality of LED strings. Therefore, the plurality of LED strings can have the same luminance. | 05-05-2011 |
20110122167 | BACKLIGHT UNIT AND DISPLAY APPARATUS - A backlight unit and a display apparatus are provided. The display apparatus includes a power supply unit which outputs a first voltage; a light emitting unit which includes a first end connected to the power supply unit, and a second end, the first end receiving the first voltage from the power supply unit; and a compensation unit which includes a first end connected to the second end of the light emitting unit, and which compensates a deviation between the first voltage and a rated voltage of the light emitting unit. | 05-26-2011 |
20110122169 | DISPLAY APPARATUS AND BACKLIGHT UNIT - A display apparatus is provided. The display apparatus includes: a display panel; and a backlight unit which provides the display panel with backlight. The backlight unit includes: a converter which converts a voltage of a received power and outputs an output power, a plurality of light source modules which receives the output power from the converter, and a control unit which determines powering conditions to operate the plurality of the light source modules in a specific state for each of the plurality of light source modules, and controls the converter sequentially based on the determined powering conditions. | 05-26-2011 |
20110255160 | THREE DIMENSIONAL (3D) GLASSES, 3D DISPLAY APPARATUS AND SYSTEM FOR CHARGING 3D GLASSES - Three dimensional (3D) glasses, a 3D display apparatus, and a 3D glasses charging system are provided. The 3D glasses, which operate in association with a 3D display apparatus, includes an interface unit which is configured to connect to the 3D display apparatus, and through which power is transmittable; a battery unit which supplies power to the 3D glasses; and a charging unit which is connected to the interface unit and the battery unit, and receives power input from the interface unit and charges the battery unit using the input power. | 10-20-2011 |
20120223674 | THREE-DIMENSIONAL GLASSES AND SYSTEM FOR WIRELESS POWER TRANSMISSION - Three-dimensional (3D) glasses and a system for wireless power transmission are provided. The 3D glasses include a frame, a resonance reception part which includes a reception conductive wire loop and a resonance capacitor for wireless charging, a rectification part which rectifies a voltage generated by the resonance reception part, and a charging part which charges a battery using the rectified voltage. The frame includes a first temple, a second temple, a first lens holder part, a second lens holder part, and a bridge part connecting the first lens holder part and the second lens holder part. | 09-06-2012 |
20120299941 | DISPLAY APPARATUS AND CONTROL METHOD THEREOF - A display apparatus and a method thereof including: a display unit which displays an image based on a video signal; a battery unit which supplies battery power; and a controller which controls adjusts brightness of the image based on residual quantity of the battery unit when the battery power is supplied. | 11-29-2012 |
20120319615 | LED DRIVER CIRCUIT AND METHOD OF DRIVING LED - A light emitting diode (LED) driver circuit is provided. The LED driver circuit includes an LED the LED; a power unit which provides a current to the LED through an inductor; a dimming switch which is connected to the LED and bypasses the current provided to the LED; an input unit which receives brightness information of the LED; a logic unit which calculates reference currents for each driving mode according to the received brightness information; a current control unit which controls the power unit to provide the current based on the driving mode and the calculated reference currents to the inductor; and a switch control unit which switches the dimming switch on if the driving mode of the LED driver circuit is switched to the dimming mode. | 12-20-2012 |
20130169697 | DEVICE AND METHOD FOR DISPLAYING IMAGE, DEVICE AND METHOD FOR SUPPLYING POWER, AND METHOD FOR ADJUSTING BRIGHTNESS OF CONTENTS - A device and a method for displaying an image, a device and a method for supplying power, and a method for adjusting brightness of contents are provided. The device for displaying the image includes: a pixel value converter which, if a plurality of color pixel values of the image is received, converts the received color pixel values; a display panel which includes a plurality of color light-emitting devices and which drives each of the plurality of color light-emitting devices based on the converted color pixel values; a light-emission controller which provides the display panel with a control signal which variably controls respective driving times of each of the color light-emitting devices based on colors; and a global controller which controls the light-emission controller to variably adjust a duty ratio of the control signal based on colors and the converted color pixel values. | 07-04-2013 |
20140001975 | LIGHT EMITTING DIODE DRIVING APPARATUS, DRIVING METHOD OF LIGHT EMITTING DIODE, AND COMPUTER-READABLE RECORDING MEDIUM | 01-02-2014 |
20140056034 | DC/DC CONVERTER, ELECTRONIC APPARATUS HAVING THE SAME AND DC/DC CONVERSION METHOD THEREOF - A multi-output DC/DC converter, which may be included in an electronic apparatus, performs sync switching control using a simplified configuration. The DC/DC converter may include a first switching unit which alternately switches input DC power and converts the DC power into AC power, a converter which converts the AC power and outputs first power and second power, a first output unit which receives the first power and outputs an output voltage, a second output unit which includes a second switching unit, and receives and switches the second power through the second switching unit and outputs an output voltage, and a controller which detects a voltage applied to a winding wire of the first output unit, generates a sync signal by using the detected voltage, compares the sync signal with a predetermined reference and controls the second switching unit to synchronize the second switching unit with the first switching unit. | 02-27-2014 |
20140218421 | DISPLAY APPARATUS AND CONTROL METHOD THEREOF - Disclosed are a display apparatus and a control method thereof, the display apparatus including: a display unit which includes a plurality of pixels with an organic light emitting diode (OLED); a power supply which supplies power to the display unit; an image processor which processes an image signal in accordance with the plurality of pixels; and a controller which divides the frame into a plurality of sub-frames, assigns bit weights to each of the divided sub-frames, and controls the power supply to supply a voltage which is adjusted by the assigned bit weights in accordance with the sub-frames to the display unit. | 08-07-2014 |
20140253815 | INPUT APPARATUS, DISPLAY APPARATUS, AND CONTROL METHODS THEREOF - A display apparatus is provided. The display apparatus includes a communicator configured to communicate with an input apparatus comprising a touch pad, and receive coordinate data corresponding to a dragging trajectory input through the touch pad. The display apparatus also includes a display configured to display the dragging trajectory on a screen based on the received coordinate data; and a controller configured to recognize a number or character corresponding to the dragging trajectory based on the received coordinate data, and provide visual feedback adjusting the displayed dragging trajectory according to a recognition result. | 09-11-2014 |
20150046294 | DISPLAY APPARATUS, THE METHOD THEREOF AND ITEM PROVIDING METHOD - Provided is a display apparatus including: a display; an input unit configured to receive a trace of writing performed in a remote control apparatus; a detector configured to extract at least one character corresponding to the trace of writing; and a controller configured to search for at least one item corresponding to the character from among a plurality of items stored in a storage of the display apparatus or provided from at least one external server, and display a result of the search on the display. | 02-12-2015 |
20150046433 | DISPLAY APPARATUS AND THE METHOD THEREOF - A display apparatus is disclosed. The display apparatus includes a display, an input unit configured to receive a handwriting trace, in response to a user handwriting being performed at a remote control apparatus; a detector configured to determine text corresponding to the handwriting trace; and a controller configured to search for an item corresponding to the text, classify the item into a plurality of categories, and control the display to display the item on the display. | 02-12-2015 |
20150062443 | DISPLAY APPARATUS AND METHOD FOR CONTROLLING THE SAME - A display apparatus is provided, which includes a receiver configured to receive a writing trace performed on a remote controller, a detector configured to extract a character that corresponds to the writing trace, a display configured to display the character and at least one item that corresponds to the character, and a controller configured to, if a user's operation is performed in one direction on the remote controller, automatically execute a function that corresponds to the at least one item that is positioned in the direction in which the user's operation is performed. | 03-05-2015 |