Abstract: A display device and a driving method thereof are discussed. The display device can include a display panel for displaying images, a scan driver for supplying scan signals to the display panel, and a gate compensation circuit. The gate compensation circuit is configured to respectively sense a first node voltage and a second node voltage from a first node controller and a second node controller of the scan driver, and change a turn-on duty ratio of the first node controller to the second node controller based on the sensed first node voltage and second node voltage.

Abstract: A display device and a driving method thereof are discussed. The display device can include a display panel for displaying images, a scan driver for supplying scan signals to the display panel, and a gate compensation circuit. The gate compensation circuit is configured to respectively sense a first node voltage and a second node voltage from a first node controller and a second node controller of the scan driver, and change a turn-on duty ratio of the first node controller to the second node controller based on the sensed first node voltage and second node voltage.

Abstract: Disclosed herein are an organic light emitting diode (OLED) display device and an optical compensation method thereof, The OLED display device is capable of automatically performing optical compensation according to the use environment of a user in correspondence with voltage drop upon utilizing an additional cable for extending a connection length in the display device in which a display module and a driver are separated. The driver includes a memory for storing optical compensation data according to a length of a cable connecting the display module and the driver, a cable checking unit for checking whether an extension cable is used, and a timing controller for selectively applying the optical compensation data stored in the memory according to a result output from the cable checking unit.

Abstract: The present disclosure relates to a method for detecting a defect of a sensing transistor disposed in each sub pixel of an organic light emitting display device and extracting a coordinate of a sub pixel in which a defective sensing transistor is disposed. A defect detecting data voltage is applied to a data line after initializing a reference voltage line and a voltage of the reference voltage line is sensed during an interval in which the scan transistor is turned on and the sensing transistor is turned off to determine whether the sensing transistor is defective.

Abstract: A display device and a power monitoring circuit. The power monitoring circuit monitors whether or not first power is ordinarily output from a power management integrated circuit (PMIC). When the first power is not ordinarily output, the power monitoring circuit outputs an error detection signal indicative of an abnormality in the PMIC to a main controller. The display device includes the power monitoring circuit. The operating state of the PMIC supplying power required for the driving of a display panel can be monitored.

Abstract: The present exemplary embodiments relate to devices and methods of processing data obtained by sensing a characteristic parameter of a sub pixel. A controller which receives a first clock signal and sensing data output from a data driver generates a second clock signal having a same phase as the first clock signal and outputs image data that is compensated based on the sensing data in accordance with the generated second clock signal to the data driver. By doing this, the controller generates the second clock signal using a part of the first clock signal output from the data driver and transmits the image data so that a skew or signal distortion which may be generated at the time of transmitting/receiving data is suppressed to improve sensing and compensation precision and suppress an image abnormality due to the sensing and compensation failure.

Abstract: Disclosed herein are an organic light emitting diode (OLED) display device and an optical compensation method thereof, The OLED display device is capable of automatically performing optical compensation according to the use environment of a user in correspondence with voltage drop upon utilizing an additional cable for extending a connection length in the display device in which a display module and a driver are separated. The driver includes a memory for storing optical compensation data according to a length of a cable connecting the display module and the driver, a cable checking unit for checking whether an extension cable is used, and a timing controller for selectively applying the optical compensation data stored in the memory according to a result output from the cable checking unit.

Abstract: The present disclosure relates to a method for detecting a defect of a sensing transistor disposed in each sub pixel of an organic light emitting display device and extracting a coordinate of a sub pixel in which a defective sensing transistor is disposed. A defect detecting data voltage is applied to a data line after initializing a reference voltage line and a voltage of the reference voltage line is sensed during an interval in which the scan transistor is turned on and the sensing transistor is turned off to determine whether the sensing transistor is defective.

Abstract: The present exemplary embodiments relate to devices and methods of processing data obtained by sensing a characteristic parameter of a sub pixel. A controller which receives a first clock signal and sensing data output from a data driver generates a second clock signal having a same phase as the first clock signal and outputs image data that is compensated based on the sensing data in accordance with the generated second clock signal to the data driver. By doing this, the controller generates the second clock signal using a part of the first clock signal output from the data driver and transmits the image data so that a skew or signal distortion which may be generated at the time of transmitting/receiving data is suppressed to improve sensing and compensation precision and suppress an image abnormality due to the sensing and compensation failure.

Abstract: A display device and a power monitoring circuit. The power monitoring circuit monitors whether or not first power is ordinarily output from a power management integrated circuit (PMIC). When the first power is not ordinarily output, the power monitoring circuit outputs an error detection signal indicative of an abnormality in the PMIC to a main controller. The display device includes the power monitoring circuit. The operating state of the PMIC supplying power required for the driving of a display panel can be monitored.

Abstract: An organic light emitting diode display device includes: a display panel including a plurality of pixels in a display region, each pixel including a switching thin film transistor, a driving thin film transistor, and a light emitting diode, the display region divided into a plurality of regions; a diode current measuring portion electrically connected to the light emitting diode of each pixel and measuring a current of each divided region; a timing control portion obtaining a gain value of each divided region based on the measured current of each divided region, and generating compensated image data using the gain value; a gate driver supplying gate voltages to the display panel; and a data driver supplying data voltages corresponding to the compensated image data to the display panel.

Abstract: A display device is disclosed which includes: a control substrate configured to include a timing controller; a data connector configured to transfer signal from the control substrate to a display panel; a data driver mounted to the data connector; at least one outer connector disposed by at least one of both sides of the data connector and loaded with a driver chip, wherein the driver chip and the data driver are loaded on the outer connector and the data connector using the same bonding system, respectively.

Abstract: An organic light emitting diode display device includes: a display panel including a plurality of pixels in a display region, each pixel including a switching thin film transistor, a driving thin film transistor, and a light emitting diode, the display region divided into a plurality of regions; a diode current measuring portion electrically connected to the light emitting diode of each pixel and measuring a current of each divided region; a timing control portion obtaining a gain value of each divided region based on the measured current of each divided region, and generating compensated image data using the gain value; a gate driver supplying gate voltages to the display panel; and a data driver supplying data voltages corresponding to the compensated image data to the display panel.

Abstract: A display device is disclosed. The device includes: a timing controller configured to derive data signals for a display panel from external signals; a date driver configured to derive data voltages from the data signals and apply the data voltage to data lines on the display panel; a gamma IC (integrated circuit) chip configured to apply gamma voltages to the data driver; a power supply IC chip configured to apply a most significant voltage to the data driver; a DAC (digital-to-analog converter) configured to receive the gamma voltages and the most significant voltage from the gamma IC chip and the power supply IC chip and generate the data voltages opposite to the data signals; and a power supply unit configured to convert the gamma voltages and the most significant voltage using the data signals and apply the converted voltages to the DAC.

Abstract: A display device is disclosed. The device includes: a timing controller configured to derive data signals for a display panel from external signals; a date driver configured to derive data voltages from the data signals and apply the data voltage to data lines on the display panel; a gamma IC (integrated circuit) chip configured to apply gamma voltages to the data driver; a power supply IC chip configured to apply a most significant voltage to the data driver; a DAC (digital-to-analog converter) configured to receive the gamma voltages and the most significant voltage from the gamma IC chip and the power supply IC chip and generate the data voltages opposite to the data signals; and a power supply unit configured to convert the gamma voltages and the most significant voltage using the data signals and apply the converted voltages to the DAC.