한국정보디스플레이학회:학술대회논문집

The Korean Infomation Display Society (한국정보디스플레이학회)
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Long period application of AC field causing contrast reduction of IPS cell

  • Momoi, Yuichi (LG. Display Co., Ltd. Japan R&D Lab.) ;
  • Koda, Tomonori (Graduate School of Science and Engineering, Yamagata University)
  • Published : 2008.10.13
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Abstract

It is known that AC electric field to drive IPS mode of liquid crystal display (LCD) causes reduction of the contrast after long period of display operation. Our results are presented in this paper on a base of a model of interaction between surface of PI alignment film and LC molecules. We conclude that the surface viscosity of PI alignment film is one of the most important factors for the contrast reduction phenomenon.

Keywords