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As today's smartphone displays become thinner, the coupling capacitance between the display electrodes and touch screen panel (TSP) electrodes is increasing significantly. The increased capacitance easily introduces time-varying display signals into the TSP, deteriorating the touch performance. In this research, we demonstrate that the maximum peak display noise in the time domain is approximately 30% of the maximum voltage difference of the display grayscale through analysis of the structuredoi:10.3390/s20030837 pmid:32033210 pmcid:PMC7038724 fatcat:yf5udjrrprbsvh6uo6bj5qtyaa