Patent ID: 9612678
Date: 2017-04-04
CPC Classifications: G02F,G06F,G09G

Claim:
1. A touch display screen comprising a color film substrate and an array substrate, wherein common electrodes, which have a shape of strip, are disposed on the color film substrate or the array substrate, and one or more of the common electrodes act as touch driving electrodes of the touch display screen; the touch display screen further comprises: a driving circuit, connected with the common electrodes acting as the touch driving electrodes, configured to apply touch driving pulses to the common electrodes acting as the touch driving electrodes and to apply a common voltage in a period during which no touch driving pulse is applied; wherein, the driving circuit comprises a plurality of shift registers connected in series; an outputting terminal of each of shift registers is connected with one of the common electrodes acting as the touch driving electrodes; and an inputting terminal of a first shift register is configured to input a frame start signal as a touch scan initiation signal.