Display device and display driving method

A display driving method of a display device including a display panel including a plurality of gate lines, a plurality of data lines, and a plurality of subpixels including a plurality of driving transistors, a gate driving circuit configured to apply scan signals to the plurality of gate lines, and a data driving circuit configured to convert image data into a data voltages and apply the data voltages to the plurality of data lines, the display driving method comprising:

• determining a reference period of a recovery voltage, the reference period indicative of a timing which the recovery voltage is applied to at least one driving transistor of the plurality of driving transistors to reset the at least one driving transistor;
• displaying an image on the display panel;
• compensating the data voltages applied to the plurality of driving transistors based on sensed characteristic values of the plurality of driving transistors within a blank period of a frame period, the frame period including a display driving period during which the data voltages are applied and the blank period during which the data voltages are maintained;
• and
• applying the recovery voltage to the at least one driving transistor a plurality of times within the blank period based on the reference period.

A display device comprising:

• a display panel including a plurality of subpixels, a plurality of gate lines, a plurality of data lines, and a plurality of driving transistors each included in a corresponding subpixel from the plurality of subpixels;
• a data driving circuit configured to convert image data into data voltages and apply the data voltages to the plurality of data lines during a display driving period of a frame period that includes the display driving period and a blank period during which the data voltages are maintained;
• a timing controller configured to switch operation of the display device between a first driving frequency and a second driving frequency that is different from the first driving frequency,
• wherein a recovery voltage is applied to at least one driving transistor of the plurality of driving transistors a first plurality of times according to a predetermined timing during a first blank period of a first frame period that corresponds to the first driving frequency, and
• wherein the recovery voltage is applied to the at least one driving transistor a second plurality of times according to the predetermined timing during a second blank period of a second frame period that corresponds to the second driving frequency where the second blank period has a duration that is different from the first blank period.