Abstract: A signal transmission device for transmitting touch data and a display device using the same are disclosed. The signal transmission device includes a plurality of integrated circuits driving touch sensors and outputting touch data obtained from the touch sensors, a controller controlling the integrated circuits and determining a touch input on the basis of the touch data received from the integrated circuits; and a plurality of lines connecting the controller and the integrated circuits in a multi-point manner. The controller and the integrated circuits communicate with each other in both directions via the lines. A data packet of differential signal transmitted between the controller and the integrated circuits includes a header interval, a register address interval, and a data interval allocated between a start dummy clock and an end dummy clock.

Abstract: A signal transmission device for transmitting touch data and a display device using the same are disclosed. The signal transmission device includes a plurality of integrated circuits driving touch sensors and outputting touch data obtained from the touch sensors, a controller controlling the integrated circuits and determining a touch input on the basis of the touch data received from the integrated circuits; and a plurality of lines connecting the controller and the integrated circuits in a multi-point manner. The controller and the integrated circuits communicate with each other in both directions via the lines. A data packet of differential signal transmitted between the controller and the integrated circuits includes a header interval, a register address interval, and a data interval allocated between a start dummy clock and an end dummy clock.

Abstract: A touch sensing display device that compensates for common voltage differences. The display device includes a first touch channel, a second touch channel, and an integrated circuit. The integrated circuit includes a first input terminal to receive a common voltage and a second input terminal to receive a supply voltage, a first touch pad coupled to the first touch channel of the display device, and a second touch pad coupled to the second touch channel of the display device. The integrated circuit also includes a first touch driving circuit coupled to the first touch pad to generate a compensated common voltage based on the supply voltage and to output the compensated common voltage onto the first touch pad. The integrated circuit also includes a second touch driving circuit coupled to the second touch pad, the second touch driving circuit to output the common voltage onto the second touch pad.

Abstract: A display device including a panel comprising a plurality of pixels, and a drive circuit configured to apply data voltage to the plurality of pixels through data lines is disclosed. In one embodiment, the drive circuit includes a first circuit block having a first recovery time from a power off state to an operational state of the first circuit block, a second circuit block having a second recovery time from a power off state to an operational state of the second circuit block, the second recovery time shorter than the first recovery time, and a control circuit configured to (i) enable the first circuit block and the second circuit block during a first time period, and to (ii) enable the first circuit block and disable the second circuit block during a second time period.

Abstract: A touch sensing display device that compensates for common voltage differences. The display device includes a first touch channel, a second touch channel, and an integrated circuit. The integrated circuit includes a first input terminal to receive a common voltage and a second input terminal to receive a supply voltage, a first touch pad coupled to the first touch channel of the display device, and a second touch pad coupled to the second touch channel of the display device. The integrated circuit also includes a first touch driving circuit coupled to the first touch pad to generate a compensated common voltage based on the supply voltage and to output the compensated common voltage onto the first touch pad. The integrated circuit also includes a second touch driving circuit coupled to the second touch pad, the second touch driving circuit to output the common voltage onto the second touch pad.

Abstract: A display device including a panel comprising a plurality of pixels, and a drive circuit configured to apply data voltage to the plurality of pixels through data lines is disclosed. In one embodiment, the drive circuit includes a first circuit block having a first recovery time from a power off state to an operational state of the first circuit block, a second circuit block having a second recovery time from a power off state to an operational state of the second circuit block, the second recovery time shorter than the first recovery time, and a control circuit configured to (i) enable the first circuit block and the second circuit block during a first time period, and to (ii) enable the first circuit block and disable the second circuit block during a second time period.

Abstract: A liquid crystal display is disclosed. The liquid crystal display includes a clock generator generating a first input clock signal and then a second input clock signal; a level shifter shifting the first and second input clock signals and generating clock signals whose voltages decrease stepwise from a gate high voltage, to a modulation voltage that is lower than the gate high voltage, to a gate low voltage that is lower than the modulation voltage; and a liquid crystal panel that includes data lines, gate lines intersecting the data lines, TFTs provided at intersections of the data lines and the gate lines, and a gate shift register sequentially supplying a gate pulse to the gate lines in response to the clock signals input from the level shifter.

Abstract: A liquid crystal display is disclosed. The liquid crystal display includes a clock generator generating a first input clock signal and then a second input clock signal; a level shifter shifting the first and second input clock signals and generating clock signals whose voltages decrease stepwise from a gate high voltage, to a modulation voltage that is lower than the gate high voltage, to a gate low voltage that is lower than the modulation voltage; and a liquid crystal panel that includes data lines, gate lines intersecting the data lines, TFTs provided at intersections of the data lines and the gate lines, and a gate shift register sequentially supplying a gate pulse to the gate lines in response to the clock signals input from the level shifter.