Driving method, construction method for compensation table and display decive

A construction method for a compensation table of a display panel, comprising steps of

• S1:
• obtaining a first gray-scale value and a second gray-scale value to be tested currently;
• S2:
• testing the initial time difference Δt corresponding to the current first gay-scale value and second gray-scale value;
• S3:
• filling the current initial time difference Δt into the position of Δt corresponding to the first gray-scale value and the second gray-scale value in the compensation table;
• and
• S4:
• establishing a storage unit according to a plurality of tested first gay-scale values, a plurality of tested second gray-scale values and the corresponding initial time difference Δt.

A display device, comprising:

• a display panel;
• a gate driver circuit outputting a gate drive signal to drive the display panel;
• a source driver circuit outputting a data driving signal to drive the display panel;
• and
• a storage unit storing a preset compensation table and information of Δt corresponding to G1 and G2;
• wherein, in a same frame of picture, the gate driver circuit outputs the gate drive signals corresponding to each scanning line one to one, and drives the scanning lines to turn on sequentially or non-sequentially in a group of two;
• corresponding to a same data line, polarities of the data driving signals of the pixels corresponding to a same group of scanning lines are the same, and polarities of the data driving signals of the pixels corresponding to two adjacent groups of turned-on scanning lines are opposite;
• G1 is an average gray-scale value of a row of pixels corresponding to the last turned-on scanning lines in the previous group, and G2 is an average gray-scale value of a row of pixels corresponding to the first turned-on scanning, lines in the current group;
• the gate driver circuit generates a plurality of first gate drive signals and a plurality of second gate drive signals according to the Δt obtained by corresponding G1 and G2 in the storage unit, and the high-level duration of the first gate drive signals is T+Δt;
• and
• the first gate drive signals are output to the first turned-on scanning lines in each group, and the second gate drive signals are output to the last turned-on scanning lines in each group, wherein T is equal to an average time for the data drive signals driving each pixel, and Δt is equal to a time for compensating the first gate drive signals.