Joonkyu
Joonkyu Park, Gyeonggi-Do KR
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20090184917 | Liquid crystal display and dimming controlling method thereof - A liquid crystal display device and a dimming controlling method thereof are disclosed. The liquid crystal display device includes a liquid crystal display panel, a drive circuit supplying a data pulse and a gate pulse to the liquid crystal display panel, a backlight unit divided into a plurality of block including light sources, and irradiating lights of which luminescence is controlled by the blocks, respectively, a controller analyzing an input video data by the block unit, generating a block dimming value based on a result of the analyzing, repeating a low pass filtering to the block dimming value to generate a local dimming value, applying a predeterminded global dimming value to an average of the local dimming value to generate a dimming signal, and a backlight driver generating a PWM signal for controlling a luminescence of the light sources by the blocks respectively according to the dimming signal to drive the light sources by the blocks respectively. | 07-23-2009 |
20110096101 | LIQUID CRYSTAL DISPLAY AND METHOD FOR DRIVING THE SAME - A liquid crystal display includes a liquid crystal display panel including data lines and gate lines, a data driving circuit configured to drive the data lines, a gate driving circuit configured to drive the gate lines, a timing controller configured to divide a unit frame period into a first sub-frame period and a second sub-frame period, a backlight unit configured to provide light to the liquid crystal display panel wherein the backlight unit includes a plurality of light sources, and a light source driving circuit configured to turn off all the plurality of light sources during the first sub-frame period and turns on all the plurality of light sources at a turn-on time within the second sub-frame period. | 04-28-2011 |
Joonkyu Park, Seoul KR
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20130090101 | MOBILE TERMINAL AND CONTROLLING METHOD THEREOF - A mobile terminal including a wireless communication unit configured to request a 3D webpage from a web server; a display unit configured to display the 3D webpage received via the wireless communication unit; a memory configured to set a display condition of the 3D webpage for the mobile terminal; and a controller configured to detect whether a current status of the mobile terminal meets the set display condition when a command for accessing the 3D webpage is input before the 3D webpage is requested from the web server, request and receive the 3D webpage via the wireless communication unit if the current status of the mobile terminal meets the set display condition, control the display unit to display the received 3D webpage, and control a 3D operation of the displayed 3D webpage. | 04-11-2013 |
Joonkyu Rhee, Yongin-Si KR
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20150194595 | MAGNETIC MEMORY DEVICES - A magnetic memory device may include a lower electrode on a substrate, a memory element on the lower electrode, an upper electrode on the memory element, and a protection spacer enclosing a portion of a side surface of the lower electrode and protruding laterally from the side surface of the lower electrode. The protection spacer may have a bottom surface that is positioned at a level higher than that of a bottom surface of the lower electrode. | 07-09-2015 |
Joonkyu Seo, Gyeonggi-Do KR
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20130204967 | METHOD AND APPARATUS FOR INTEROPERABLY PERFORMING SERVICES AND SYSTEM SUPPORTING THE SAME - A method and apparatus are provided for interoperably performing a service. The method includes searching, by the portable terminal, external devices; identifying a service interoperation device corresponding to a characteristic of the service among the searched external devices; recommending the service interoperation device; and performing the service in interoperation with the recommended service interoperation device. | 08-08-2013 |