Array substrate, touch display panel and driving method for array substrate

#This application claims priority to a Chinese patent application No. 201510232986.X filed on May 8, 2015 and entitled “Array Substrate, Touch Display Panel And Driving Method For Array Substrate”, the disclosure of which is incorporated herein by reference in its entirety.

#The present application relates to the field of displaying technologies, in particular to an array substrate, a touch display panel and a driving method for an array substrate.

#In the field of displaying technologies, a display function and a touch function are integrated into a display panel for more and more products, so that the thickness of the display panel is reduced significantly. In particular, an in-cell touch display panel is most effective in reducing the thickness.

#Other features, objects and advantages of the present disclosure will become apparent from the following detailed description made to nonrestrictive embodiments with reference to the accompanying drawings, in which:

#FIG. 1 is a schematic top view showing a first array substrate provided in an embodiment of the present disclosure;

#FIG. 2A is a schematic top view showing a second array substrate provided in an embodiment of the present disclosure;

#Technical solutions of the present disclosure will be further illustrated through specific embodiments below in conjunction with the accompanying drawings. It may be understood that specific embodiments described herein are merely for explaining the present disclosure rather than limiting the present disclosure. In addition, it should be illustrated that merely partial content associated with the present disclosure rather than all contents is illustrated in the accompanying drawings for ease of description.

#In the related art, as described above, integrating the touch function into the array substrate requires that the driver circuit for touch scanning operations needs to be provided on the array substrate, so that the width of the non-display region is increased, frame narrowing for the display panel is hard to be achieved, and a large number of scan lines and I/O ports need to be additionally provided for the touch function on a driver chip. In order to avoid this, the present disclosure provides a technical solution in which shift registers used for displaying are reused to provide a trigger signal and a termination signal for a touch scanning operation. According to the technical solution of the embodiment of the present disclosure, the touch scanning operation is performed within an interval between a display scanning operation conducted by the shift registers for a row of pixel units and a successive display scanning operation conducted by the shift registers for another row of pixel units.

#FIG. 1 is a schematic top view showing a first array substrate provided in an embodiment of the present disclosure. As shown in FIG. 1, the array substrate includes a display region 1 and a non-display region 2 surrounding the display region 1. Pixel units 11 arranged as an array are disposed in the display region 1, and a driver circuit 21 is disposed in the non-display region. The driver circuit 21 includes a first shift register (VSR) 22, a second shift register (VSR) 23 and a touch scanning circuit 24. The first shift register 22 includes a first display scan signal outputting terminal for outputting a first display scan signal, and the second shift register 23 includes a second display scan signal outputting terminal for outputting a second display scan signal. A first control terminal 241 of the touch scanning circuit 24 is connected to the first display scan signal outputting terminal, and a second control terminal 242 of the touch scanning circuit is connected to the second display scan signal outputting terminal. The touch scanning circuit 24 further includes a touch signal inputting terminal 243 and a touch signal outputting terminal 244, where in a touch period, the touch scanning circuit 24 controls, according to the first display scan signal and the second display scan signal, the touch signal outputting terminal 244 to output a touch signal.