Homeotropic alignment of liquid crystals on a nano-patterned polyimide surface using nanoimprint lithography
- Authors
- Park, Hong-Gyu; Lee, Jong-Jin; Dong, Ki-Young; Oh, Byeong-Yun; Kim, Young-Hwan; Jeong, Hae-Yoon; Ju, Byeong-Kwon; Seo, Dae-Shik
- Issue Date
- 2011
- Publisher
- ROYAL SOC CHEMISTRY
- Keywords
- LCD; LC alignment; Nano patterning
- Citation
- SOFT MATTER, v.7, no.12, pp.5610 - 5614
- Indexed
- SCIE
SCOPUS
- Journal Title
- SOFT MATTER
- Volume
- 7
- Number
- 12
- Start Page
- 5610
- End Page
- 5614
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/115064
- DOI
- 10.1039/c1sm05083d
- ISSN
- 1744-683X
- Abstract
- In this paper, nanoimprint lithography was utilized to transfer a nano-pattern (NP) onto a homeotropic polyimide (PI) surface for use in liquid crystal displays (LCDs). The nano-patterned silicon mold was fabricated by laser interference lithography. A NP PI layer acted as the homeotropic alignment layer to easily and uniformly align the liquid crystal (LC) molecules. A NP LC cell with a NP PI layer was successfully operated as a vertical aligned LCD, and its performance was evaluated. The threshold voltage and response time of the NP LC cell were 2.472 V and 22.7 ms, respectively. In addition, the NP LC cell was characterized by a high thermal budget. Therefore, the competitive performance of the NP LC cell could allow new approaches to replace the conventional rubbing process in display technology.
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Collections - College of Engineering > School of Electrical Engineering > 1. Journal Articles
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