P‐139: A New Pixel Design for Touch and Display Driver Integration (TDDI)^†

Abstract

In this paper, a high quality displays and high transmittance approach for TDDI LCD is proposed by placing the touch signal line in the center of sub-pixel (where called Tx in dot). The design of Tx in dot can effectively eliminate the inhomogeneity of subpixel parasitic capacitance and achieve the uniformity of color. In this paper four structures about Tx in dot have been proposed and simulated by Techwiz LCD 3D simulator, the result revealed that the structure of removing the com ITO layer directly above Tx signal line would have lower operate voltage (Vop) and smaller transmittance fluctuation.We also made the tx in dot product and confirmed that the product has good touch performance, lower operating voltage, higher transmittance and better picture uniformity at gray 255.

P‐16.10: The Introduction of Circuit Simulation Model for TDDI Panels

“…At present, there have been many reports [2,3] on the research and application of dividing methods of common electrode in the world, which are all devoted to decrease the number of signal lines to lead to the decrease of the down border size of panels. For example, in order to minus the number of sensors, the squares of common electrode are becoming larger, to decrease the signal lines needed.…”