Dual-mode liquid crystal devices with switchable memory and dynamic modes

• Published in: Journal of Information Display Vol. 10; no. 4; pp. 184 - 187
• Main Authors: Yao, I-An, Kou, Hsiao-Ti, Yang, Chiu-Lien, Liao, Shih-Fu, Li, Jia-Hsin, Wu, Jin-Jei
• Format: Journal Article
• Language: English
• Published: Taylor & Francis Group 01.12.2009; 한국정보디스플레이학회
• Subjects: bistable; dual mode; flow effect; LCD; switchable; 전기공학
• ISSN: 1598-0316; 2158-1606
• DOI: 10.1080/15980316.2009.9652105

A liquid crystal device with switchable dynamic and memory modes was investigated and developed. The proposed device reveals the splay, π-twist, and bend states via selective switching among them. In the dynamic mode, the device is operated in the bend state, which exhibits a wide viewing-angle and a fast-response-time due to its self-compensated bend structure and flow-accelerated fast response time, respectively. In the memory mode, the permanent memory characteristics in the splay and π-twist sates are obtained, respectively. The switching mechanisms of the tristate device are also proposed.