Journal of Information Display

The Korean Infomation Display Society (한국정보디스플레이학회)
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A new precharging method without side effects for liquid crystal displays with insufficient charging time

  • Lee, Seung-Hyuck (Department of Information Display and Advanced Display Research Center, Kyung Hee University) ;
  • Kim, Jongbin (Department of Information Display and Advanced Display Research Center, Kyung Hee University) ;
  • Lee, Seung-Woo (Department of Information Display and Advanced Display Research Center, Kyung Hee University)
  • Received : 2012.04.30
  • Accepted : 2012.07.20
  • Published : 2012.09.30
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Abstract

In this paper, a new precharging method without any side effects is proposed to overcome image degradation caused by insufficient charging times. This work explains why the precharging method can compensate for short charging times. However, side effects of the precharging method in the form of horizontal line artifacts are addressed, wherein line artifact-compensating precharging (LCP) is presented to mitigate the side effects. Behavioral modeling is employed to investigate the side effects by estimating transient responses of a liquid crystal display. The LCP proves that it can dramatically reduce line artifacts caused by precharging because the brightness difference of adjacent pixels does not exceed 1.0.

Keywords

Acknowledgement

Supported by : National Research Foundation of Korea

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