Fast switching and luminance-controlled fringe-field switching liquid crystal device for vehicle display

Jeong Hwan Yoon, Eo Jin Seo, Seung Jae Lee, Young Jin Lim, Hoon Sub Shin, Seong Min Song, Jae Min Myoung, Seung Hee Lee

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Liquid crystal displays (LCDs) for vehicle displays should exhibit a fast response time in wide temperature range and wide-viewing angle in horizontal and downward directions without grey-scale inversion but limited brightness in the upward direction because the display images can be reproduced in the front window glass of a vehicle, affecting driver’s front visibility. Currently, fringe-field switching (FFS) liquid crystal device is widely commercialised for high resolution and wide-viewing-angle LCD; however, it needs to improve response times and limit the display brightness in the upward direction. As a solution, we propose a homogeneously aligned liquid crystal device in which liquid crystal director does tilt as well as twist deformation in a confined area by both vertical- and fringe-electric fields, exhibiting about two times faster decay response time than that of conventional FFS mode with suppressed luminance in the upward direction. The proposed liquid crystal device can be applied to LCDs for vehicle displays.

Original languageEnglish
Pages (from-to)1747-1752
Number of pages6
JournalLiquid Crystals
Volume46
Issue number11
DOIs
Publication statusPublished - 2019 Sep 2

Bibliographical note

Funding Information:
This research was supported by the Basic Science Research Program (2016R1D1A1B01007189) through the National Research Foundation of Korea (NRF) funded by Ministry of Education.

Publisher Copyright:
© 2019, © 2019 Informa UK Limited, trading as Taylor & Francis Group.

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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