Four-domain twisted nematic structure with enhanced liquid crystal alignment stability and fast response time
- Authors
- Moon, Yeon-Kyu; Lee, You-Jin; Yu, Chang-Jae; Heo, Jeong Uk; Park, Jae-Hong; Lee, Hyeok Jin; Shin, Sung Tae; Kim, Jae-Hoon
- Issue Date
- Jul-2012
- Publisher
- AMER INST PHYSICS
- Citation
- JOURNAL OF APPLIED PHYSICS, v.112, no.1, pp.1 - 6
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF APPLIED PHYSICS
- Volume
- 112
- Number
- 1
- Start Page
- 1
- End Page
- 6
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/165178
- DOI
- 10.1063/1.4733998
- ISSN
- 0021-8979
- Abstract
- In this paper, we propose a stable four-domain twisted nematic structure with wide viewing angle characteristics and a fast response time. A stable structure was realized by introducing a high pre-tilt angle approach incorporating stacked planar and vertical alignment layers. The response time and thermal stability of the proposed device were dramatically improved by the addition of UV-curable reactive mesogen (RM) mixed with a vertical alignment material. Polymerized RMs along the liquid crystal (LC) director increased the polar anchoring energy and reduced back-flow phenomena. A wide viewing angle and fast response time characteristics were achieved over all gray levels.
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