Array substrate, touch display device and driving method thereof

A touch display device, comprising an array substrate, a color filter substrate opposite to the array substrate and a liquid crystal layer disposed between the array substrate and the color filter substrate, wherein the array substrate comprises a display region and a peripheral region around the display region, the display region comprising a plurality of scan lines and the peripheral region comprising a gate electrode driving circuit and a touch driving circuit, wherein,

• the gate electrode driving circuit comprises a plurality of stages of shift registers, wherein
• each of the plurality of stages of shift registers corresponds to and is electrically connected to one of the plurality of scan lines;
• the plurality of stages of shift registers being disposed at one side or two sides of the peripheral region;
• the shift registers disposed at at least one side of the peripheral region are divided into N groups of shift registers, wherein N is an integer larger than or equal to 2;
• the stages of shift registers in each of the N groups of shift registers are sequentially electrically connected with each other in series;
• the stages of shift registers from different groups of shift registers are arranged to be spaced apart from each other;
• each stage of the shift register comprises a trigger signal input terminal and a secondary trigger signal output terminal;
• and
• for any two adjacent stages of shift registers arranged to be electrically connected in series with each other in each group of shift registers, a trigger signal input terminal of the succeeding stage of shift register is electrically connected with a secondary trigger signal output terminal of the preceding stage of shift register;
• and
• the touch driving circuit comprises N groups of touch selection output units corresponding to the N groups of shift registers, wherein
• the number of the stages of touch selection output units in each of the N groups of touch selection output units is less than the number of the stages of shift registers in each of the N groups of shift registers;
• the each stage of touch selection output units comprises a strobe signal input terminal;
• and
• the strobe signal input terminal of each stage of touch selection output units in each group of touch selection output units is electrically connected with the secondary trigger signal output terminals of different stages of shift registers in corresponding one of the N groups of shift registers.

A method for driving a touch display device, wherein array substrate of the touch display device comprises a display region and a peripheral region around the display region, the display region comprises a plurality of scan lines and the peripheral region comprises a gate electrode driving circuit and a touch driving circuit, wherein,

• the gate electrode driving circuit comprises a plurality of stages of shift registers, each of the plurality of stages of shift registers is arranged to correspond to and electrically connected to one of the plurality of scan lines, and the plurality of stages of shift registers are disposed at one side or two sides of the peripheral region;
• the shift registers disposed at at least one side of the peripheral region are divided into N groups of shift registers, each stage of shift registers in each of the N groups of shift registers being sequentially electrically connected with each other in series, and the stages of shift registers from different groups of shift registers being arranged to be spaced apart from each other, wherein
• each stage of the shift register comprises a trigger signal input terminal and a secondary trigger signal outputting terminal;
• and
• for any two adjacent shift registers arranged to be electrically connected in series with each other in each group of shift registers, a trigger signal input terminal of the succeeding stage of shift register is connected with a secondary rigger signal outputting terminal of the preceding stage of shift register, wherein N is an integer larger than or equal to 2;
• the touch driving circuit comprises N groups of touch selection output units corresponding to the N groups of shift registers, the number of the stages of touch selection outputting units in each of the N groups of touch selection output units being less than the number of the stages of shift registers in each of the N groups of shift registers, wherein
• each stage of touch selection output unit comprises a strobe signal input terminal, and the strobe signal input terminal of each stage of touch selection output units in each group of touch selection output units is electrically connected with the secondary trigger signal output terminals of different stages of shift registers in corresponding one of the N groups of shift registers;
• the method comprising:
• dividing a scan phase of each display frame into N time periods, and sequentially driving each group of shift registers at each side and causing each stage of shift register in each group of shift registers to output a display scan signal and a secondary trigger signal,
• outputting, by each stage of touch selection output unit in each group of touch selection output units, a touch driving signal according to the secondary trigger signal received by the strobe signal input terminal, and wherein the touch driving signal is not overlapped with the display scan signal in time domain.