Driving technology for improving motion quality of active-matrix organic light-emitting diode display

Jongbin Kim; Minkoo Kim; Jong-Man Kim; Seung-Ryeol Kim; Seung-Woo Lee

doi:10.1117/1.OE.53.9.093105

18 September 2014 Driving technology for improving motion quality of active-matrix organic light-emitting diode display

Jongbin Kim, Minkoo Kim, Jong-Man Kim, Seung-Ryeol Kim, Seung-Woo Lee

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Optical Engineering, Vol. 53, Issue 9, 093105 (September 2014). https://doi.org/10.1117/1.OE.53.9.093105

Abstract

This paper reports transient response characteristics of active-matrix organic light emitting diode (AMOLED) displays for mobile applications. This work reports that the rising responses look like saw-tooth waveform and are not always faster than those of liquid crystal displays. Thus, a driving technology is proposed to improve the rising transient responses of AMOLED based on the overdrive (OD) technology. We modified the OD technology by combining it with a dithering method because the conventional OD method cannot successfully enhance all the rising responses. Our method can improve all the transitions of AMOLED without modifying the conventional gamma architecture of drivers. A new artifact is found when OD is applied to certain transitions. We propose an optimum OD selection method to mitigate the artifact. The implementation results show the proposed technology can successfully improve motion quality of scrolling texts as well as moving pictures in AMOLED displays.

CC BY: © The Authors. Published by SPIE under a Creative Commons Attribution 4.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.

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Jongbin Kim, Minkoo Kim, Jong-Man Kim, Seung-Ryeol Kim, and Seung-Woo Lee "Driving technology for improving motion quality of active-matrix organic light-emitting diode display," Optical Engineering 53(9), 093105 (18 September 2014). https://doi.org/10.1117/1.OE.53.9.093105

Published: 18 September 2014

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