Capacitive built-in touch control display panel, display device, control device and control method

A control device for realizing display and touch control functions of a capacitive built-in touch control display panel, the capacitive built-in touch control display panel comprising an array substrate, a counter substrate and a liquid crystal layer, the array substrate comprising a gate line and a data line extending in different directions and crossing each other and a transparent common electrode layer, wherein the array substrate further comprising:

• a touch control driving electrode extending along a first direction, the touch control driving electrode being positioned in the transparent common electrode layer;
• and a touch control detecting electrode extending along a second direction, the touch control detecting electrode being insulated from the touch control driving electrode by an insulation layer;
• wherein the first direction is perpendicular to the second direction, a common voltage signal and a touch control driving signal are applied to the touch control driving electrode in a time dividing manner,
• wherein a period for displaying each image frame by the display panel is divided into a display period and a touch control period,
• the control device comprising:
• a display control unit adapted to apply a common voltage signal to the touch control driving electrode without inputting signals to the touch control detecting electrode during the display period;
• and
• a touch control unit adapted to apply a touch control driving signal to the touch control driving electrode and control the touch control detecting electrode couples and outputs the voltage signal of the touch control driving electrode during the touch control period.

A display device comprising a capacitive built-in touch control display panel comprising an array substrate, a counter substrate and a liquid crystal layer, the array substrate comprising a gate line and a data line extending in different directions and crossing each other and a transparent common electrode layer, wherein the array substrate further comprising:

• a touch control driving electrode extending along a first direction, the touch control driving electrode being positioned in the transparent common electrode layer;
• and
• a touch control detecting electrode extending along a second direction, the touch control detecting electrode being insulated from the touch control driving electrode by an insulation layer;
• wherein the first direction is perpendicular to the second direction, a common voltage signal and a touch control driving signal are applied to the touch control driving electrode in a time dividing manner.