Patent ID: 10332453

Abstract:
The invention provides a digital driving method for OLED display device, by using a 3T1C pixel driving circuit comprising a first TFT, a second TFT, a third TFT, a capacitor, and an OLED to drive each sub-pixel, and by dividing a frame of OLED display device into a plurality of unequal-length sub-frames and equal-length sub-frames, and by changing the time gap between the first TFT charging and the third TFT discharging to control the illuminating time of each equal-length sub-frame. By combining the unequal-length and equal-length sub-frames, compared to the unequal-length sub-frame driving only in prior arts, the method can effectively reduce required hardware specification, improve luminance of OLED display device, and ensure the display quality of the OLED display device.