Implementation of full-panel circuit models for interference estimation between touch and display operation in on-cell touch amoled

Seung Hun Choi; Jun Yeol An; Jae Youl Lee; Si Woo Kim; Hyung Min Lee; Yoon Kyung Choi

doi:10.1002/sdtp.15406

Implementation of full-panel circuit models for interference estimation between touch and display operation in on-cell touch amoled

Seung Hun Choi, Jun Yeol An, Jae Youl Lee, Si Woo Kim, Hyung Min Lee, Yoon Kyung Choi

Research output: Contribution to journal › Conference article › peer-review

3 Citations (Scopus)

Abstract

A full-panel circuit model of the on-cell touch AMOLED is introduced to simulate the mutual interference between touch and display operations. The proposed panel model successfully reproduced nonlinear behaviors of the display noise observed in real systems. Also, the reverse-directional interference, i.e., touch-to-display coupling, was simulated, showing that touch stimulation incurs the fluctuation of display charging voltages, possibly causing perceivable line defects. The proposed panel model can be used for various touch/display algorithms to reduce the interference effects and to determine key design parameters for new panels.

Original language	English
Pages (from-to)	24-27
Number of pages	4
Journal	Digest of Technical Papers - SID International Symposium
Volume	53
Issue number	1
DOIs	https://doi.org/10.1002/sdtp.15406
Publication status	Published - 2022
Event	59th International Symposium, Seminar and Exhibition, Display Week 2022 - San Jose, United States Duration: 2022 May 8 → 2022 May 13

Bibliographical note

Funding Information:
This work was supported by Samsung Electronics.

Publisher Copyright:
© 2022. John Wiley and Sons Inc. AIAA. All rights reserved.

Keywords

AMOLED
Algorithm
Coupling
Display driver, simulation
Modeling
Noise
On-cell touch
Touch
Touch sensing
Y-OCTA

ASJC Scopus subject areas

General Engineering

Access to Document

10.1002/sdtp.15406

Cite this

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title = "Implementation of full-panel circuit models for interference estimation between touch and display operation in on-cell touch amoled",

abstract = "A full-panel circuit model of the on-cell touch AMOLED is introduced to simulate the mutual interference between touch and display operations. The proposed panel model successfully reproduced nonlinear behaviors of the display noise observed in real systems. Also, the reverse-directional interference, i.e., touch-to-display coupling, was simulated, showing that touch stimulation incurs the fluctuation of display charging voltages, possibly causing perceivable line defects. The proposed panel model can be used for various touch/display algorithms to reduce the interference effects and to determine key design parameters for new panels.",

keywords = "AMOLED, Algorithm, Coupling, Display driver, simulation, Modeling, Noise, On-cell touch, Touch, Touch sensing, Y-OCTA",

author = "Choi, {Seung Hun} and An, {Jun Yeol} and Lee, {Jae Youl} and Kim, {Si Woo} and Lee, {Hyung Min} and Choi, {Yoon Kyung}",

note = "Funding Information: This work was supported by Samsung Electronics. Publisher Copyright: {\textcopyright} 2022. John Wiley and Sons Inc. AIAA. All rights reserved.; 59th International Symposium, Seminar and Exhibition, Display Week 2022 ; Conference date: 08-05-2022 Through 13-05-2022",

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AU - An, Jun Yeol

AU - Lee, Jae Youl

AU - Kim, Si Woo

AU - Lee, Hyung Min

AU - Choi, Yoon Kyung

PY - 2022

Y1 - 2022

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AB - A full-panel circuit model of the on-cell touch AMOLED is introduced to simulate the mutual interference between touch and display operations. The proposed panel model successfully reproduced nonlinear behaviors of the display noise observed in real systems. Also, the reverse-directional interference, i.e., touch-to-display coupling, was simulated, showing that touch stimulation incurs the fluctuation of display charging voltages, possibly causing perceivable line defects. The proposed panel model can be used for various touch/display algorithms to reduce the interference effects and to determine key design parameters for new panels.

KW - AMOLED

KW - Algorithm

KW - Coupling

KW - Display driver, simulation

KW - Modeling

KW - Noise

KW - On-cell touch

KW - Touch

KW - Touch sensing

KW - Y-OCTA

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M3 - Conference article

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JF - Digest of Technical Papers - SID International Symposium

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Implementation of full-panel circuit models for interference estimation between touch and display operation in on-cell touch amoled

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

Access to Document

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