Patent ID: 9159266
Filing Date: 2015-10-13
Classification: G09G

Abstract:
1. A display device, comprising: a display unit including a plurality of pixels connected to corresponding scan lines among a plurality of scan lines and corresponding data lines among a plurality of data lines; a scan driver sequentially generating and transmitting scan signals respectively corresponding to the pixels and the plurality of scan lines; a data driver generating and transmitting data voltages according to corresponding image data signals to the plurality of data lines during one frame; a first power source voltage driver respectively applying voltages of a first power source to the pixels; a second power source voltage driver respectively applying a second power source voltage to the pixels; and a signal controller controlling operation of the scan driver, the data driver, the first power source voltage driver, and the second power source voltage driver, wherein: a predetermined reference voltage is transmitted through the plurality of data lines during a threshold voltage compensation period of one frame, the predetermined reference voltage corresponding to an intermediate value that is substantially halfway between a maximum voltage value and a minimum voltage value of a voltage range of the data voltages, the first power source voltage driver applies a first predetermined voltage to the pixels during an initialization period and applies a second predetermined voltage to the pixels during the threshold voltage compensation period, and the first power source voltage driver applies the first predetermined voltage in a range of 0V to −3V during the initialization period, the range of 0V to −3V lower than a voltage level of the second power source voltage output from the second power source voltage driver during the initialization period, the initialization period to initialize data voltages according to image data signals of a previous frame written to the pixels.