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Title:
THIN FILM-BASED READOUT CIRCUITRY FOR TRIBOELECTRIC TOUCH SENSORS
Document Type and Number:
WIPO Patent Application WO/2019/171295
Kind Code:
A3
Abstract:
An example circuit for reading data from a triboelectric sensor includes a triboelectric sensor and a sensing element electrically coupled to the triboelectric sensor and configured to output a signal in response to a change in voltage from the triboelectric sensor. The sensing element may include a first thin film transistor electrically coupled to the triboelectric sensor. The circuit may further include a load element electrically coupled to the sensing element and configured to supply a load to the sensing element. The triboelectric sensor, the sensing element, and the load element may be disposed on a flexible substrate.

Inventors:
TORRES SEVILLA, Gato (4700 Kaust, Thuwal, 23955-6900, SA)
HUSSAIN, Muhammad Mustafa (4700 Kaust, Thuwal, 23955-6900, SA)
CARAVEO-FRESCAS, Jesus Alfonso (SABIC CRI at KAUST, P.O. Box 454-4700Thuwal, 23955-6900, SA)
NAYAK, Pradipta K. (4700 Kaust, Thuwal, 23955-6900, SA)
ALSALEM, Fahad (4700 Kaust, Thuwal, 23955-6900, SA)
ALDUBAYAN, Abdulaziz H. (4700 Kaust, Thuwal, 23955-6900, SA)
AL-MAGHATHUWI, Ramzi Salem (4700 Kaust, Thuwal, 23955-6900, SA)
Application Number:
IB2019/051813
Publication Date:
November 07, 2019
Filing Date:
March 06, 2019
Export Citation:
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Assignee:
SABIC GLOBAL TECHNOLOGIES B.V. (Plasticslaan 1, 4612 PX Bergen Op Zoom, 4612 PX, NL)
International Classes:
H03K17/96
Foreign References:
US20160070392A12016-03-10
Other References:
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ZHANG CHI ET AL: "Tribotronics-A new field by coupling triboelectricity and semiconductor", NANO TODAY, ELSEVIER, AMSTERDAM, NL, vol. 11, no. 4, 22 July 2016 (2016-07-22), pages 521 - 536, XP029731603, ISSN: 1748-0132, DOI: 10.1016/J.NANTOD.2016.07.004
USMAN KHAN ET AL: "Graphene Tribotronics for Electronic Skin and Touch Screen Applications", ADVANCED MATERIALS, vol. 29, no. 1, 27 October 2016 (2016-10-27), DE, pages 1603544, XP055547547, ISSN: 0935-9648, DOI: 10.1002/adma.201603544
ISHIDA KOICH ET AL: "22.5 dB open-loop gain, 31 kHz GBW pseudo-CMOS based operational amplifier with a-IGZO TFTs on a flexible film", 2014 IEEE ASIAN SOLID-STATE CIRCUITS CONFERENCE (A-SSCC), IEEE, 10 November 2014 (2014-11-10), pages 313 - 316, XP032719757, ISBN: 978-1-4799-4090-5, [retrieved on 20150113], DOI: 10.1109/ASSCC.2014.7008923
KIM KICHAN ET AL: "a-InGaZnO Thin-Film Transistor-Based Operational Amplifier for an Adaptive DC-DC Converter in Display Driving Sys", IEEE TRANSACTIONS ON ELECTRON DEVICES, IEEE SERVICE CENTER, PISACATAWAY, NJ, US, vol. 62, no. 4, 1 April 2015 (2015-04-01), pages 1189 - 1194, XP011576341, ISSN: 0018-9383, [retrieved on 20150320], DOI: 10.1109/TED.2015.2402684
SHABANPOUR R ET AL: "Design and analysis of high-gain amplifiers in flexible self-aligned a-IGZO thin-film transistor technology", ANALOG INTEGRATED CIRCUITS AND SIGNAL PROCESSING, SPRINGER NEW YORK LLC, US, vol. 87, no. 2, 31 October 2015 (2015-10-31), pages 213 - 222, XP035898914, ISSN: 0925-1030, [retrieved on 20151031], DOI: 10.1007/S10470-015-0655-3
SHABANPOUR R ET AL: "A 70┬░phase margin OPAMP with positive feedback in flexible a-IGZO TFT technology", 2015 IEEE 58TH INTERNATIONAL MIDWEST SYMPOSIUM ON CIRCUITS AND SYSTEMS (MWSCAS), IEEE, 2 August 2015 (2015-08-02), pages 1 - 4, XP033218591, DOI: 10.1109/MWSCAS.2015.7282051
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