Abstract: A touch screen panel includes a plurality of sensing electrodes arranged in a touch active area, a charge pump circuit for generating an output voltage based on an input voltage and at least one clock signal, a clock signal generator for generating the clock signal, and a touch driver for generating touch driving signals by using the output voltage and applying the touch driving signals to the sensing electrodes. In the touch screen panel, the clock signal and the touch driving signals are synchronized with each other.

Abstract: An organic light-emitting display device includes: pixels; and a data driver including a plurality of current measurers connected to the pixels via at least one data line, each of the current measurers including: a first measurement circuit including: a first operational amplifier including a non-inverted input terminal to which a first reference voltage is applied, and an inverted input terminal connected to a first pixel from among the pixels; and a first feedback capacitor connected between the inverted input terminal and an output terminal of the first operational amplifier; and a second measurement circuit including: a second operational amplifier including a non-inverted input terminal to which a second reference voltage is applied, and an inverted input terminal connected to a second pixel from among the pixels; and a second feedback capacitor connected between the inverted input terminal and an output terminal of the second operational amplifier.

Abstract: A touch screen panel includes a plurality of sensing electrodes arranged in a touch active area, a charge pump circuit for generating an output voltage based on an input voltage and at least one clock signal, a clock signal generator for generating the clock signal, and a touch driver for generating touch driving signals by using the output voltage and applying the touch driving signals to the sensing electrodes. In the touch screen panel, the clock signal and the touch driving signals are synchronized with each other.

Abstract: A power supply device for a display device and method for driving the power supply device are disclosed. In one aspect the device includes a power voltage selector configured to select at least one of a plurality of predetermined voltage values according to a power voltage control signal and output the selected predetermined voltage value. The device also includes a power voltage supplier configured to supply a power voltage corresponding to the selected predetermined voltage value to a display data processor and a controller configured to generate the power voltage control signal based at least in part on a change in a number of switched data bits defined as a data change degree. The controller is also configured to transmit the power voltage control signal to the power voltage selector. The data bits are configured to be switched substantially synchronously with a clock signal.

Abstract: An apparatus for compensating for a skew is provided between data signals supplied through a plurality of data lines and a clock signal supplied through a clock line. A skew compensation apparatus includes a plurality of data receivers each configured to delay a data signal supplied through a corresponding data line based on associated phase difference data and to output the delayed data signal, a clock receiver configured to receive a clock signal supplied through a clock line, and a phase controller configured to select any one of the plurality of data receivers and to output, to the selected data receiver, a phase control signal configured to correct the phase difference data of the selected data receiver based on the phase difference between a data signal output from the selected data receiver and the clock signal.

Abstract: An organic light-emitting display device includes: pixels; and a data driver including a plurality of current measurers connected to the pixels via at least one data line, each of the current measurers including: a first measurement circuit including: a first operational amplifier including a non-inverted input terminal to which a first reference voltage is applied, and an inverted input terminal connected to a first pixel from among the pixels; and a first feedback capacitor connected between the inverted input terminal and an output terminal of the first operational amplifier; and a second measurement circuit including: a second operational amplifier including a non-inverted input terminal to which a second reference voltage is applied, and an inverted input terminal connected to a second pixel from among the pixels; and a second feedback capacitor connected between the inverted input terminal and an output terminal of the second operational amplifier.

Abstract: An organic light emitting diode display including a display including data lines, scan lines, sense lines, and pixels electrically coupled to the data, scan, and sense lines, a compensator for sensing first and second driving currents flowing to the pixels corresponding to first and second test data in a compensation mode, to compare first and second reference currents with the first and second driving currents, respectively, and to update compensation data, a signal controller for compensating input data according to the compensation data to generate image data, and for changing the input data into the first and second test data in the compensation mode; and a data driver for generating a plurality of data signals by using one of the image data, the first and second test data, and to supply the data signals to the data lines.

Abstract: A power supply device for a display device and method for driving the power supply device are disclosed. In one aspect the device includes a power voltage selector configured to select at least one of a plurality of predetermined voltage values according to a power voltage control signal and output the selected predetermined voltage value. The device also includes a power voltage supplier configured to supply a power voltage corresponding to the selected predetermined voltage value to a display data processor and a controller configured to generate the power voltage control signal based at least in part on a change in a number of switched data bits defined as a data change degree. The controller is also configured to transmit the power voltage control signal to the power voltage selector. The data bits are configured to be switched substantially synchronously with a clock signal.

Abstract: An organic light emitting diode display including a display including data lines, scan lines, sense lines, and pixels electrically coupled to the data, scan, and sense lines, a compensator for sensing first and second driving currents flowing to the pixels corresponding to first and second test data in a compensation mode, to compare first and second reference currents with the first and second driving currents, respectively, and to update compensation data, a signal controller for compensating input data according to the compensation data to generate image data, and for changing the input data into the first and second test data in the compensation mode; and a data driver for generating a plurality of data signals by using one of the image data, the first and second test data, and to supply the data signals to the data lines.

Abstract: An organic light emitting display and a driving method thereof are provided. The organic light emitting display includes a display region including a plurality of data lines, a plurality of scan lines, and a plurality of pixels connected to corresponding data lines and corresponding scan lines, a signal controller that converts input data into grayscale data according to gamma control data in a normal mode, changes the gamma control data according to dimming data in a dimming mode to generate gamma correction data, and converts the grayscale data into correction data according to the gamma correction data, a scan driver that supplies a plurality of scan signals to the plurality of scan lines, and a data driver that generates a plurality of data signals corresponding to the grayscale data or the correction data, and supplies the plurality of data signals to the plurality of data lines.

Abstract: An apparatus for compensating for a skew is provided between data signals supplied through a plurality of data lines and a clock signal supplied through a clock line. A skew compensation apparatus includes a plurality of data receivers each configured to delay a data signal supplied through a corresponding data line based on associated phase difference data and to output the delayed data signal, a clock receiver configured to receive a clock signal supplied through a clock line, and a phase controller configured to select any one of the plurality of data receivers and to output, to the selected data receiver, a phase control signal configured to correct the phase difference data of the selected data receiver based on the phase difference between a data signal output from the selected data receiver and the clock signal.