Patent application number | Description | Published |
20080198125 | CIRCUIT BOARD AND LIQUID CRYSTAL DISPLAY INCLUDING THE SAME - A circuit board includes; a reference common voltage generating circuit receiving an input voltage from an input node and outputting a reference common voltage to an output node, wherein the reference common voltage generating circuit includes a voltage distribution unit including a first resistor connected between the input node and the output node and a second resistor connected between the output node and a ground, and a sink current generating unit outputting a sink current to the output node, wherein the sink current is adjusted according to a resistance of a setting resistor, and a coupling line coupling the setting resistor and the reference common voltage generating circuit. | 08-21-2008 |
20090237340 | LIQUID CRYSTAL DISPLAY MODULE AND DISPLAY SYSTEM INCLUDING THE SAME - A liquid crystal display (LCD) module and a display system including the LCD module are provided. The LCD module includes a common-voltage adjustment unit which is enabled by interfacing with an external device and thus adjusts a common voltage; a signal control unit which outputs a first reverse signal that reverses the polarity of a voltage at intervals of at least two frames; and a data driving unit which reverses the polarity of an image data voltage with respect to the common voltage at intervals of at least two frames in response to the first reverse signal. | 09-24-2009 |
20100013781 | TOUCH KEY MODULE - A touch key module of an electronic device is provided. The touch key module includes a Printed Circuit Board (PCB) on which a capacitive touch sensor chip is located and a conductor, located on a surface of the PCB, for detecting contact of the capacitive touch sensor chip. | 01-21-2010 |
20100113112 | ANTENNA DEVICE FOR PORTABLE WIRELESS TERMINAL - An antenna device for a portable wireless terminal is provided. The antenna device includes a main antenna for mobile communication for transmitting and receiving signal in a first frequency band, a Transmit (Tx) sub-antenna for transmitting signals in a second frequency band, a Receive (Rx) sub-antenna for receiving signals in a third frequency band, and a controller for selectively using one of the Tx sub-antenna and the Rx sub-antenna if the second frequency band overlaps with the third frequency band, and for providing control such that the Tx sub-antenna and the Rx sub-antenna are simultaneously used if the second frequency band does not overlap with the third frequency band. Accordingly, without increasing the volume of the portable wireless terminal, an antenna space can be ensured and radiation performance can be improved. | 05-06-2010 |
20100220079 | LIQUID CRYSTAL DISPLAY - A liquid crystal display includes a gate driver including stages, and a clock generator which receives a clock generation control signal, generates a clock signal and a clock bar signal based on one or more of the clock generation control signal, a gate-on voltage and a gate-off voltage, and outputs the clock signal and the clock bar signal to the gate driver. The clock generator includes an overcurrent protector unit which intercepts at least one of the clock signal and the clock bar signal when a voltage level of at least one of the gate-on voltage and the gate-off voltage is greater than a reference level. | 09-02-2010 |
20110053636 | VOICE CALL PROCESSING METHOD AND APPARATUS FOR MOBILE TERMINAL - A voice call processing method and apparatus for a mobile terminal are provided for improving voice communication quality by switching between matching circuits that are optimized for respective audio output modes of the mobile terminal. The mobile terminal includes at least two matching circuits designated for individual audio output modes, a mode tracking unit for detecting a change from a first audio output mode to a second audio output mode, a control unit for identifying the second audio output mode and the matching circuit designated for the second audio output mode and for outputting a control signal for switching to the matching circuit designated for the second audio output mode, and a switch for switching the signal path between the at least two matching circuits based on the control signal output by the control unit. | 03-03-2011 |
20130090072 | MOBILE TERMINAL, AND METHOD FOR IMPROVING RADIATION PERFORMANCE AND SPECIFIC ABSORPTION RATE OF AN ANTENNA OF A MOBILE TERMINAL - A method and a mobile terminal of improving radiation performance and Specific Absorption Rate (SAR) of an antenna are provided. The mobile terminal includes a controller for generating a control signal for switching a ground according to a frequency band used by an antenna, and a switch unit for switching a contact point for each frequency band according to the control signal. | 04-11-2013 |
20140160110 | LIQUID CRYSTAL DISPLAY - A liquid crystal display includes a gate driver including stages, and a clock generator which receives a clock generation control signal, generates a clock signal and a clock bar signal based on one or more of the clock generation control signal, a gate-on voltage and a gate-off voltage, and outputs the clock signal and the clock bar signal to the gate driver. The clock generator includes an overcurrent protector unit which intercepts at least one of the clock signal and the clock bar signal when a voltage level of at least one of the gate-on voltage and the gate-off voltage is greater than a reference level. | 06-12-2014 |