標題: | Crucial effects of polar alignment symmetry on the dynamical behaviors of quasi-homeotropic liquid crystal cells |
作者: | Hsieh, CY Chen, SH 光電工程學系 Department of Photonics |
關鍵字: | liquid crystals;flow effect;dynamics;polar alignment;optical bounce |
公開日期: | 1-八月-2002 |
摘要: | We present an interesting transient electro-optical phenomenon including double optical bounce during the rising period of a quasi-homeotropic liquid crystal (QHLC) cell with an asymmetrical polar-alignment boundary condition. The unique optical behavior of the QHLC cell is produced by the flow effect together with the complicated alignment condition of the substrates, which is a combination of the deviation of azimuthal alignment and the asymmetrical polar alignment. We have found that the symmetrical characteristic of polar alignment plays a critical role in the dynamical behavior of the QHLC cell. Furthermore, our simulation results show that the double optical-bounce phenomenon appears even when the difference between the top and bottom tilt angles is only 0.1degrees. The experimental results and numerical calculation are described in this paper. |
URI: | http://hdl.handle.net/11536/28648 |
ISSN: | 0021-4922 |
期刊: | JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS |
Volume: | 41 |
Issue: | 8 |
起始頁: | 5264 |
結束頁: | 5265 |
顯示於類別: | 期刊論文 |