Strain-aware performance evaluation and correction for OTFT-based flexible displays

Tengtao Li; Sachin S. Sapatnekar

doi:10.1145/3240765.3240853

Strain-aware performance evaluation and correction for OTFT-based flexible displays

Tengtao Li, Sachin S. Sapatnekar

Electrical and Computer Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Scopus citations

Abstract

Organic thin-film transistors (OTFTs) are widely used in flexible circuits, such as flexible displays, sensor arrays, and radio frequency identification cards (RFIDs), because these technologies offer features such as better flexibility, lower cost, and easy manufacturability using low-temperature fabrication process. This paper develops a procedure that evaluates the performance of flexible displays. Due to their very nature, flexible displays experience significant mechanical strain/stress in the field due to the deformation caused during daily use. These deformations can impact device and circuit performance, potentially causing a loss in functionality. This paper first models the effects of extrinsic strain due to two fundamental deformations modes, bending and twisting. Next, this strain is translated to variations in device mobility, after which analytical models for error analysis in the flexible display are derived based on the rendered image values in each pixel of the display. Finally, two error correction approaches for flexible displays are proposed, based on voltage compensation and flexible clocking.

Original language	English (US)
Title of host publication	2018 IEEE/ACM International Conference on Computer-Aided Design, ICCAD 2018 - Digest of Technical Papers
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781450359504
DOIs	https://doi.org/10.1145/3240765.3240853
State	Published - Nov 5 2018
Event	37th IEEE/ACM International Conference on Computer-Aided Design, ICCAD 2018 - San Diego, United States Duration: Nov 5 2018 → Nov 8 2018

Publication series

Name	IEEE/ACM International Conference on Computer-Aided Design, Digest of Technical Papers, ICCAD
ISSN (Print)	1092-3152

Other

Other	37th IEEE/ACM International Conference on Computer-Aided Design, ICCAD 2018
Country/Territory	United States
City	San Diego
Period	11/5/18 → 11/8/18

Bibliographical note

Funding Information:
This work was supported in part by the NSF under award CCF-1421606. Permission to make digital or hard copies of part or all of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for third-party components of this work must be honored. For all other uses, contact the owner/author(s). ICCAD ’18, November 5-8, 2018, San Diego, CA, USA ©c 2018 Copyright is held by the owner/author(s). Publication rights licensed to ACM. ACM 978-1-4503-5950-4/18/11$15.00 https://doi.org/10.1145/3240765.3240853

Funding Information:
This work was supported in part by the NSF under award CCF-1421606.

Publisher Copyright:
© 2018 ACM.

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10.1145/3240765.3240853

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Li, T., & Sapatnekar, S. S. (2018). Strain-aware performance evaluation and correction for OTFT-based flexible displays. In 2018 IEEE/ACM International Conference on Computer-Aided Design, ICCAD 2018 - Digest of Technical Papers Article a40 (IEEE/ACM International Conference on Computer-Aided Design, Digest of Technical Papers, ICCAD). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1145/3240765.3240853

Strain-aware performance evaluation and correction for OTFT-based flexible displays. / Li, Tengtao; Sapatnekar, Sachin S.
2018 IEEE/ACM International Conference on Computer-Aided Design, ICCAD 2018 - Digest of Technical Papers. Institute of Electrical and Electronics Engineers Inc., 2018. a40 (IEEE/ACM International Conference on Computer-Aided Design, Digest of Technical Papers, ICCAD).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Li, T & Sapatnekar, SS 2018, Strain-aware performance evaluation and correction for OTFT-based flexible displays. in 2018 IEEE/ACM International Conference on Computer-Aided Design, ICCAD 2018 - Digest of Technical Papers., a40, IEEE/ACM International Conference on Computer-Aided Design, Digest of Technical Papers, ICCAD, Institute of Electrical and Electronics Engineers Inc., 37th IEEE/ACM International Conference on Computer-Aided Design, ICCAD 2018, San Diego, United States, 11/5/18. https://doi.org/10.1145/3240765.3240853

Li T, Sapatnekar SS. Strain-aware performance evaluation and correction for OTFT-based flexible displays. In 2018 IEEE/ACM International Conference on Computer-Aided Design, ICCAD 2018 - Digest of Technical Papers. Institute of Electrical and Electronics Engineers Inc. 2018. a40. (IEEE/ACM International Conference on Computer-Aided Design, Digest of Technical Papers, ICCAD). doi: 10.1145/3240765.3240853

Li, Tengtao ; Sapatnekar, Sachin S. / Strain-aware performance evaluation and correction for OTFT-based flexible displays. 2018 IEEE/ACM International Conference on Computer-Aided Design, ICCAD 2018 - Digest of Technical Papers. Institute of Electrical and Electronics Engineers Inc., 2018. (IEEE/ACM International Conference on Computer-Aided Design, Digest of Technical Papers, ICCAD).

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Strain-aware performance evaluation and correction for OTFT-based flexible displays

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