Flexible displays with curved electrodes, display devices and control methods thereof

The present application relates to the field of display technologies, and in particular, to display substrate devices. One of the described display substrates comprises: a flexible substrate; a pinhole array configured to transmit light on the flexible substrate; at least one curved electrode responsive to bending of the flexible substrate around the pinhole array on the flexible substrate; and a plurality of detecting lines; wherein the at least one curved electrode comprises a plurality of curved sub-electrodes connected in series; and at least one of the plurality of curved sub-electrodes is coupled to one of the plurality of detecting lines.