Design of noise immune readout IC with panel parasitic RC time delay reduction technique for large size capacitive-type touch screen panel잡음 영향에 둔감한 패널 기생 RC 시간 지연 감소 기술의 대형 면적 정전용량 터치 스크린용 검출 회로 설계

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dc.contributor.advisorCho, Gyu Hyeong-
dc.contributor.advisor조규형-
dc.contributor.authorPark, Sang Hui-
dc.contributor.author박상휘-
dc.date.accessioned2018-05-23T19:38:03Z-
dc.date.available2018-05-23T19:38:03Z-
dc.date.issued2017-
dc.identifier.urihttp://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=718931&flag=dissertationen_US
dc.identifier.urihttp://hdl.handle.net/10203/242056-
dc.description학위논문(박사) - 한국과학기술원 : 전기및전자공학부, 2017.8,[iv, 47 p. :]-
dc.description.abstractAn effective readout method and circuit adopting the method for large size capacitive-type touch-screen panels (TSPs) is presented in this thesis. Despite the considerable amount of RC time delay of large-area TSPs, the readout method of this thesis with a receiver (Rx) input series-capacitor improves the settling speed of signals transferred from the transmitter (Tx) to the Rx, by reducing the RC time delay. Combined with the Rx input series-capacitor, a capacitive-input fully-differential filtered charge integrator (CI-FDFCI) effectively cancels out the display noise and reduces the self noise in capacitive-type TSPs. The proposed Rx circuit was implemented using 0.35-$\mu$m CMOS. Using a 65-inch metal-mesh TSP with 169 Tx and 97 Rx electrodes mounted on a liquid-crystal display (LCD) for testing, the proposed readout method achieved 65% reduction of signal settling time within an accuracy of $\ge$ 3$\tau$ for the longest signal path of the TSP. Using the RC time delay reduction technique, the Tx driving frequency could be boosted by as much as 400 kHz, and the measured signal-to-noise ratio (SNR) of 43.5 dB was obtained for finger touch at a 120 Hz scan rate, resulting in a figure-of-merit (FOM) of 0.26 nJ/node, while the overall power consumption was 76 mW.-
dc.languageeng-
dc.publisher한국과학기술원-
dc.subjecttouch screen panel (TSP)▼aCMOS readout IC▼asignal-to-noise ratio (SNR)▼aRC delay▼afiltered fully differential sensing▼ainput series capacitor▼aTx frequency-
dc.subject터치 스크린▼a검출 회로▼a신호 대 잡음비▼a저항-정전용량 시간 지연▼a완전 차동 방식▼a입력 직렬 커패시터▼a구동 주파수-
dc.titleDesign of noise immune readout IC with panel parasitic RC time delay reduction technique for large size capacitive-type touch screen panel-
dc.title.alternative잡음 영향에 둔감한 패널 기생 RC 시간 지연 감소 기술의 대형 면적 정전용량 터치 스크린용 검출 회로 설계-
dc.typeThesis(Ph.D)-
dc.identifier.CNRN325007-
dc.description.department한국과학기술원 :전기및전자공학부,-
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EE-Theses_Ph.D.(박사논문)
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