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P‐73: Innovative Controller for Touch‐Sensor Panel in Heavy‐Load Parasitic Capacitance
Author(s) -
Lee Innam,
Kim JangHui,
Lee Choonhyop,
Kim Jaewon
Publication year - 2021
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1002/sdtp.14955
Subject(s) - capacitance , controller (irrigation) , analog front end , parasitic capacitance , electrical engineering , signal (programming language) , noise (video) , computer science , acoustics , engineering , physics , electrode , cmos , computer vision , quantum mechanics , agronomy , image (mathematics) , biology , programming language
The innovative design of fully differential analog front end is swhich is the parasitic capacitance of a touch sensor is approximately 60% higher than a conventional smartphone. The newly developed touch sensor controller shows approximately 40 % higher SNR than a commercialized flagship smartphone, which is defined with the noise of peak to peak value in the touch signal on the zebra pattern display.