Organic light emitting diodes

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A Reconfigurable Multi-Mode Readout IC for Non-Conductive and Capacitive Sensing With 33.9-dB SNR on 6.5-inch AMOLED Panels

A Reconfigurable Multi-Mode Readout IC for Non-Conductive and Capacitive Sensing With 33.9-dB SNR on 6.5-inch AMOLED Panels 150 150
Author(s): Sang Weun Kim, Jun Seong Kim, Dabin Yun, Seunghoon Ko

Abstract:

This paper presents a multi-mode readout IC for 6.5-inch 34Tx/16Rx On-Cell Touch AMOLED (OCTA) panels, detecting both conductive and non-conductive objects without panel modifications. To enable this dual detection, a reconfigurable AFE is proposed, functioning as either a capacitance-to-voltage converter or a triboelectric charge sampler. In display-off mode, the …

Published in: IEEE Solid-State Circuits Letters
Page(s): 1 – 1
Year of Publication: 2026
Electronic ISSN: 2573-9603
DOI: 10.1109/LSSC.2026.3680164
Publisher: IEEE

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A Hybrid Touch Sensing AFE With Common-CVQ (Currents, Voltages, and Charges) Subtraction to Improve Display Noise Immunity for Large Sensing Load

A Hybrid Touch Sensing AFE With Common-CVQ (Currents, Voltages, and Charges) Subtraction to Improve Display Noise Immunity for Large Sensing Load 150 150
Author(s): Seung Hun Choi, Jun Yeol An, Jaewoong Ahn, Si-Woo Kim, Jae-Youl Lee, Yoon-Kyung Choi, Hyung-Min Lee

Abstract:

On-cell touch flexible organic light-emitting diode (OLED) displays face significant display noise (D-noise) challenges due to large parasitic capacitance ( $C_{P}$ ). To address the limitations of conventional methods, this article proposes improved common-current subtraction (CCS), incorporating common-voltage subtraction (CVS) and common-charge subtraction (CQS) techniques. CVS enhances signal-to-noise ratio (SNR) by …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 13
Year of Publication: 2026
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2026.3675678
Publisher: IEEE

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