| Autor: |
Chul-Gyu Jhun, Jae Chang Kim, Jeong-Soo Kim, Tae-Hoon Yoon, Joong-Ha Lee, Taehyung Kim, Zheng-Guo Shen, Ji-Hyang Jang, Soon-Bum Kwon |
| Rok vydání: |
2011 |
| Předmět: |
|
| Zdroj: |
Korean Journal of Optics and Photonics. 22:23-29 |
| ISSN: |
1225-6285 |
| DOI: |
10.3807/kjop.2011.22.1.023 |
| Popis: |
Bistable chiral splay nematic liquid crystal display (BCSN LCD) is a memory type liquid crystal display using splay and twist states as two stable states. When the cell thickness to pitch (d/p) ratio is 0.25, splay and twist states have permanent memory time. However, when the transition from twist state to splay state is caused by a fringe field, pixel regions show that the splay state is not perfect, but rather includes a contribution from the twist state. In this paper, we propose a reflective BCSN LCD using twist state in which the two stable states do not coexist. The fabricated reflective BCSN LC cell shows a high contrast ratio of over 30:1 and response times of 950 ms and 450 ms in vertical and fringe field switching, respectively. The proposed cell also shows wide viewing angle characteristics of in left- and right directions. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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