000867968 001__ 867968 000867968 005__ 20210130004002.0 000867968 0247_ $$2doi$$a10.1039/C8SM02420K 000867968 0247_ $$2ISSN$$a1744-683X 000867968 0247_ $$2ISSN$$a1744-6848 000867968 0247_ $$2altmetric$$aaltmetric:54091065 000867968 0247_ $$2pmid$$apmid:30702137 000867968 0247_ $$2WOS$$aWOS:000459482400002 000867968 037__ $$aFZJ-2019-06561 000867968 082__ $$a530 000867968 1001_ $$0P:(DE-HGF)0$$aSirin, Omer$$b0 000867968 245__ $$aElectroadhesion with application to touchscreens 000867968 260__ $$aLondon$$bRoyal Soc. of Chemistry$$c2019 000867968 3367_ $$2DRIVER$$aarticle 000867968 3367_ $$2DataCite$$aOutput Types/Journal article 000867968 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article$$bjournal$$mjournal$$s1576562593_32427 000867968 3367_ $$2BibTeX$$aARTICLE 000867968 3367_ $$2ORCID$$aJOURNAL_ARTICLE 000867968 3367_ $$00$$2EndNote$$aJournal Article 000867968 520__ $$aThere is growing interest in touchscreens displaying tactile feedback due to their tremendous potential in consumer electronics. In these systems, the friction between the user's fingerpad and the surface of the touchscreen is modulated to display tactile effects. One of the promising techniques used in this regard is electrostatic actuation. If, for example, an alternating voltage is applied to the conductive layer of a surface capacitive touchscreen, an attractive electrostatic force is generated between the finger and the surface, which results in an increase in frictional forces acting on the finger moving on the surface. By altering the amplitude, frequency, and waveform of this signal, a rich set of tactile effects can be generated on the touchscreen. Despite the ease of implementation and its powerful effect on our tactile sensation, the contact mechanics leading to an increase in friction due to electroadhesion has not been fully understood yet. In this paper, we present experimental results for how the friction between a finger and a touchscreen depends on the electrostatic attraction and the applied normal pressure. The dependency of the finger–touchscreen interaction on the applied voltage and on several other parameters is also investigated using a mean field theory based on multiscale contact mechanics. We present detailed theoretical analysis of how the area of real contact and the friction force depend on contact parameters, and show that it is possible to further augment the friction force, and hence the tactile feedback displayed to the user by carefully choosing those parameters. 000867968 536__ $$0G:(DE-HGF)POF3-141$$a141 - Controlling Electron Charge-Based Phenomena (POF3-141)$$cPOF3-141$$fPOF III$$x0 000867968 588__ $$aDataset connected to CrossRef 000867968 7001_ $$00000-0003-3411-6215$$aAyyildiz, Mehmet$$b1 000867968 7001_ $$0P:(DE-Juel1)130885$$aPersson, B. N. 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