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Optical Engineering • Open Access

Driving technology for improving motion quality of active-matrix organic light-emitting diode display
Author(s): Jongbin Kim; Minkoo Kim; Jong-Man Kim; Seung-Ryeol Kim; Seung-Woo Lee

Paper 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.

Paper Details

Date Published: 18 September 2014
PDF: 7 pages
Opt. Eng. 53(9) 093105 doi: 10.1117/1.OE.53.9.093105
Published in: Optical Engineering Volume 53, Issue 9
Show Author Affiliations
Jongbin Kim, Kyung Hee Univ. (Korea, Republic of)
Minkoo Kim, Kyung Hee Univ. (Korea, Republic of)
Jong-Man Kim, Kyung Hee Univ. (Korea, Republic of)
Seung-Ryeol Kim, Kyung Hee Univ. (Republic of Korea)
Seung-Woo Lee, Kyung Hee Univ. (Korea, Republic of)


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