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Jonghoon
Jonghoon Jung, Seoul KR
| Patent application number | Description | Published |
|---|---|---|
| 20100231259 | Logic circuit capable of level shifting - A logic circuit includes a logic gate unit, an inverter, and a switching circuit. The logic gate unit receives a power supply voltage and an input signal to output a first signal. The inverter receives the first signal to output a second signal. The switching circuit provides one of first and second power supply voltages as the power supply voltage of the logic gate unit in response to the first and second signals. The first power supply voltage and the second power supply voltage have different voltage levels, thus enabling stable level shifting. | 09-16-2010 |
Jonghoon Kim, Seoul KR
| Patent application number | Description | Published |
|---|---|---|
| 20110084987 | Liquid crystal display and scanning back light driving method thereof - A liquid crystal display (LCD) device and method of the driving the same is disclosed. According to an embodiment of the present invention, an LCD device includes a liquid crystal display panel; a plurality of backlight sources configured to provide light to the liquid crystal display panel; a scanning backlight controller configured to generate a pulse width modulation (PWM) signal for controlling a turn-on time and a turn-off time of the light sources and a current control signal for controlling a driving current of the backlight light sources; and a plurality of light source drivers configured to turn on and off the backlight sources in response to the PWM signal and control the driving current of the backlight sources in response to the current control signal. | 04-14-2011 |
| 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 |
| 20110141002 | LIQUID CRYSTAL DISPLAY AND METHOD OF DRIVING THE SAME - A liquid crystal display includes a liquid crystal display panel, a backlight unit including a plurality of light sources, the backlight unit configured to provide light to the liquid crystal display panel, a light source driving unit configured to drive the light sources of the backlight unit using a backlight control signal, and a backlight controller configured to select a backlight dimming value depending on an input image and vary an off-start time of the backlight control signal based on the backlight dimming value. | 06-16-2011 |
Jonghoon Kim, Hwaseong-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20110096583 | Semiconductor modules and signal line layout methods thereof - A memory module and a layout method of the memory module. The memory module includes memory devices connected to corresponding tabs through corresponding damping resistors formed on a printed circuit board and includes a first signal line group in a first region between the memory devices and the damping resistors and a second signal line group in a second region between the corresponding damping resistors and the connecting terminals. | 04-28-2011 |
Jonghoon Kim, Gyeonggi-Do KR
| Patent application number | Description | Published |
|---|---|---|
| 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 |
Jonghoon Park, Seoul KR
| Patent application number | Description | Published |
|---|---|---|
| 20100214975 | FAST DATA-LINK CONNECTION METHOD FOR SAVING CONNECTION TIME IN CDMA 2000 NETWORK - Disclosed herein is a fast data call connection method capable of reducing a connection time and increasing the probability of connection success in a CDMA 2000 network. | 08-26-2010 |