Patent ID: 8334848
Filing Date: 2012-12-18
Classification: G06F

Abstract:
1. A resistance type touch display panel, comprising: a first substrate comprising a plurality of scan lines, a plurality of data lines, a plurality of pixel units and a plurality of resistance type touch units disposed thereon, wherein the scan lines and the data lines define a plurality of pixel regions on the first substrate, each pixel unit is located in one of the pixel regions and electrically connected with one of the scan lines and one of the data lines respectively, each resistance type touch unit is electrically connected with one of the scan lines and one of the data lines; and each resistance type touch unit is distributed in at least two pixel regions, and each of the resistance type touch units comprises: a touch signal readout circuit, comprising: a touch pad electrically connected with the touch signal readout circuit, the TFT being electrically connected to the touch pad, wherein the posterior circuit is adapted for reading a voltage of the touch pad via the TFT, and the TFT is used for maintaining the voltage of the touch pad at a reference voltage after reading the voltage of the touch pad; a storage capacitor disposed between the TFT and the touch pad, wherein the storage capacitor, the TFT, and the touch pad are located in different pixel regions, respectively; and a second substrate disposed above the first substrate, wherein the second substrate comprises a plurality of spacers, a plurality of touch protrusions and a common electrode formed thereon, and wherein the common electrode covers the spacers and the touch protrusions, each touch protrusion is located above one of the resistance type touch units, and a gap is formed between the common electrode disposed on each touch protrusion and the resistance type touch unit.