Abstract: A data driver IC of a liquid crystal display is provided. The data driver IC includes: a shift register; a latch part in which input digital data are sampled by the shift register and stored, the latch part including a plurality of latches; a digital to analog converter and an amplifier for converting the sampled digital data into an analog signal and amplifying the analog signal; an analog signal supplying part for generating first and second analog voltages corresponding to a black signal level and a white signal level, respectively; a color conversion control signal supplying part for controlling whether to display the input digital data in full colors or 8-bit color; a selector for selecting and outputting one of the first analog voltage corresponding to the black signal level and the second analog voltage corresponding to the white signal level; and a multiplexer for receiving the output analog signal and transferring the output analog signal to a corresponding data line.

Abstract: A pad of a liquid crystal display and a method for manufacturing the same are disclosed. The pad of the liquid crystal display includes an IC substrate and a lower substrate opposite each other, an IC pad metal formed on the IC substrate, a bump formed on the IC substrate to come into contact with the IC pad metal, a first transparent electrode electrically connected with the IC pad metal, an interlayer insulating layer formed between the IC pad metal and the first transparent electrode, a gate pad metal formed on the lower substrate, a second transparent electrode electrically connected with the gate pad metal, a gate insulating layer formed between the gate pad metal and the second transparent electrode, and a conductive ball to electrically connect the first transparent electrode and the second transparent electrode to each other.

Abstract: A data driver IC of a liquid crystal display is provided. The data driver IC includes a latch circuit latching digital pixel data, a digital-to-analog converter converting an output of the latch circuit into an analog video signal, and an analog amplifier amplifying the analog video signal converted in the digital-to-analog converter. The analog amplifier includes a NAND gate, a capacitor connected to an input terminal of the NAND gate, and a switch for connecting the input terminal and an output terminal of the NAND gate.

Abstract: An optical detection apparatus includes an optical/electric converter to transduce light incident on the optical/electric converter into a current flowing to a ground potential; a current mirror to supply a mirror output voltage to a current mirror output node in response to an enable signal, the mirror output voltage having a magnitude proportional to the light intensity incident on the optical/electric converter; and a switch to connect a driving node of the current mirror to the ground potential through the optical/electric converter in response to the enable signal.

Abstract: A drive circuit of a display device and a method for driving the display device are disclosed. The drive circuit includes at least one data transfer line to receive analog data signals including information for an image; a first latch to sequentially sample analog data signals transferred from the at least one data transfer line and to sequentially store the sampled analog data signals; and a second latch to receive the sampled analog data signals from the first latch and to simultaneously supply the sampled analog data signals to a display.

Abstract: A drive circuit of a display device and a method for driving the display device are disclosed. The drive circuit includes at least one data transfer line to receive analog data signals including information for an image; a first latch to sequentially sample analog data signals transferred from the at least one data transfer line and to sequentially store the sampled analog data signals; and a second latch to receive the sampled analog data signals from the first latch and to simultaneously supply the sampled analog data signals to a display.

Abstract: A drive circuit of a display device and a method for driving the display device are disclosed. The drive circuit includes at least one data transfer line to receive analog data signals including information for an image; a first latch to sequentially sample analog data signals transferred from the at least one data transfer line and to sequentially store the sampled analog data signals; and a second latch to receive the sampled analog data signals from the first latch and to simultaneously supply the sampled analog data signals to a display.

Abstract: A liquid crystal display device includes: a liquid crystal panel; a backlight unit supplying light to the liquid crystal panel; a photo sensor detecting an ambient luminance surrounding the liquid crystal panel and generating a current analog-type sense signal; and a signal processor adjusting a brightness of the backlight unit.

Abstract: A liquid crystal display device includes a liquid crystal panel, a backlight unit supplying light to the liquid crystal panel, a photo sensor detecting a brightness of an ambient surrounding the liquid crystal panel and generating a sense signal, and a signal processor adjusting a luminance of the light supplied by the backlight unit according to the sense signal.

Abstract: A shift register circuit and a method of operating the same are disclosed. The shift register circuit includes an OR-gate unit for receiving a start pulse or an output of a previous stage and a feedback signal; a level shift unit for level-shifting a swing voltage of a clock signal in response to an output signal of the OR-gate unit; and a buffer for transferring an output of the level shift unit to a next stage as an input signal.

Abstract: A pad of a liquid crystal display and a method for manufacturing the same are disclosed. The pad of the liquid crystal display includes an IC substrate and a lower substrate opposite each other, an IC pad metal formed on the IC substrate, a bump formed on the IC substrate to come into contact with the IC pad metal, a first transparent electrode electrically connected with the IC pad metal, an interlayer insulating layer formed between the IC pad metal and the first transparent electrode, a gate pad metal formed on the lower substrate, a second transparent electrode electrically connected with the gate pad metal, a gate insulating layer formed between the gate pad metal and the second transparent electrode, and a conductive ball to electrically connect the first transparent electrode and the second transparent electrode to each other.

Abstract: A driving circuit for a flat panel display includes a latch unit which is applied a control signal from a shift register to sequentially sample N-bit digital picture signals and to store the picture signals, and simultaneously output the sampled picture signals by a line pass signal; and a voltage to current converting unit distributing an outer reference current to a plurality of paths using a current mirror method, and supplying current of different levels to data lines of the display panel according to logical combinations of the picture signals which are applied from the latch unit.

Abstract: A liquid crystal display device includes: a liquid crystal panel; a backlight unit supplying light to the liquid crystal panel; a photo sensor detecting an ambient luminance surrounding the liquid crystal panel and generating a current analog-type sense signal; and a signal processor adjusting a brightness of the backlight unit.

Abstract: A liquid crystal display device includes a liquid crystal panel, a backlight unit supplying light to the liquid crystal panel, a photo sensor detecting a brightness of an ambient surrounding the liquid crystal panel and generating a sense signal, and a signal processor adjusting a luminance of the light supplied by the backlight unit according to the sense signal.

Abstract: An optical detection apparatus includes an optical/electric converter to transduce light incident on the optical/electric converter into a current flowing to a ground potential; a current mirror to supply a mirror output voltage to a current mirror output node in response to an enable signal, the mirror output voltage having a magnitude proportional to the light intensity incident on the optical/electric converter; and a switch to connect a driving node of the current mirror to the ground potential through the optical/electric converter in response to the enable signal.

Abstract: A drive circuit of a display device and a method for driving the display device are disclosed. The drive circuit includes at least one data transfer line to receive analog data signals including information for an image; a first latch to sequentially sample analog data signals transferred from the at least one data transfer line and to sequentially store the sampled analog data signals; and a second latch to receive the sampled analog data signals from the first latch and to simultaneously supply the sampled analog data signals to a display.

Abstract: A shift register having a simple configuration and improved response and power consumption is disclosed. In the shift register, a plurality of stages are connected to each other in cascade and scanned in a bilateral direction. In the stages, a charger charges a first supply voltage into a first node in response to a clock signal. A discharger discharges the first node in response to a first start pulse or a second start pulse. A scan direction controller is connected between the charger and the discharger to discharge the first node into a different path in response to a scan direction control signal. An output part outputs any one of said first and second supply voltages as an output signal in response to a voltage at the first node. A latch part latches said output signal using said output signal and a clock signal inverted from said clock signal to feed back the latched output signal to the first node.

Abstract: A level shifter includes a controller for selectively using a first power supply or a second power supply in accordance with an input voltage to apply a voltage to a first node, wherein, the level of the applied voltage is opposite the level of the input voltage; and an output part for selectively using the first power supply, a second power supply, or a third power supply in accordance with the voltage at the first node and for applying an output voltage, wherein the level of the output voltage is opposite the level of the voltage at the first node.

Abstract: A shift register having a simple configuration and improved response and power consumption is disclosed. In the shift register, a plurality of stages are connected to each other in cascade and scanned in a bilateral direction. In the stages, a charger charges a first supply voltage into a first node in response to a clock signal. A discharger discharges the first node in response to a first start pulse or a second start pulse. A scan direction controller is connected between the charger and the discharger to discharge the first node into a different path in response to a scan direction control signal. An output part outputs any one of said first and second supply voltages as an output signal in response to a voltage at the first node. A latch part latches said output signal using said output signal and a clock signal inverted from said clock signal to feed back the latched output signal to the first node.

Abstract: A data driver IC of a liquid crystal display is provided. The data driver IC includes: a shift register; a latch part in which input digital data are sampled by the shift register and stored, the latch part including a plurality of latches; a digital to analog converter and an amplifier for converting the sampled digital data into an analog signal and amplifying the analog signal; an analog signal supplying part for generating first and second analog voltages corresponding to a black signal level and a white signal level, respectively; a color conversion control signal supplying part for controlling whether to display the input digital data in full colors or 8-bit color; a selector for selecting and outputting one of the first analog voltage corresponding to the black signal level and the second analog voltage corresponding to the white signal level; and a multiplexer for receiving the output analog signal and transferring the output analog signal to a corresponding data line.